Fare Guide
Estimated lowest fares found within 7 days
The cheapest airline(s) flying from Saint Louis to Boston is Frontier Airlines.
Travel Period: February 2025 - January 2026
The cheapest month(s) to fly from Saint Louis to Boston is February.
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Feb 2025
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Mar 2025
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Apr 2025
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May 2025
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Jun 2025
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Jul 2025
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Aug 2025
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Sep 2025
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Oct 2025
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Nov 2025
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Dec 2025
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Jan 2026
The cheapest day(s) of the week to fly from Saint Louis to Boston is Friday.
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Sun Sunday
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Mon Monday
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Tue Tuesday
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Wed Wednesday
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Thu Thursday
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Fri Friday
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Sat Saturday
Flight Schedules
Last Updated: Thu, 2 Jan, 2025
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Time
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18:15 STL21:45 BOS2Hrs, 30m Direct
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STLSt Louis Lambert Intl Airport 18:15 - BOS 21:45 2h 30m Direct
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STLSt Louis Lambert Intl Airport 18:15
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BOSBoston Logan International Airport 21:45
- 2h 30m
- Direct
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Southwest Airlines (WN 3126)Boeing 737 700 -
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20:40 STL00:10 BOS2Hrs, 30m Direct
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STLSt Louis Lambert Intl Airport 20:40 - BOS 00:10 2h 30m Direct
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STLSt Louis Lambert Intl Airport 20:40
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BOSBoston Logan International Airport 00:10
- 2h 30m
- Direct
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Southwest Airlines (WN 4422)Boeing 737 700 -
Southwest Airlines (WN 4422) -
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07:40 STL11:10 BOS2Hrs, 30m Direct
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STLSt Louis Lambert Intl Airport 07:40 - BOS 11:10 2h 30m Direct
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STLSt Louis Lambert Intl Airport 07:40
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BOSBoston Logan International Airport 11:10
- 2h 30m
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Southwest Airlines (WN 2357)Boeing 737 800 -
Southwest Airlines (WN 2357) -
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09:30 STL13:00 BOS2Hrs, 30m Direct
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STLSt Louis Lambert Intl Airport 09:30 - BOS 13:00 2h 30m Direct
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STLSt Louis Lambert Intl Airport 09:30
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BOSBoston Logan International Airport 13:00
- 2h 30m
- Direct
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Southwest Airlines (WN 2357)Boeing 737 800 -
Southwest Airlines (WN 2357) -
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14:50 STL18:20 BOS2Hrs, 30m Direct
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STLSt Louis Lambert Intl Airport 14:50 - BOS 18:20 2h 30m Direct
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STLSt Louis Lambert Intl Airport 14:50
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BOSBoston Logan International Airport 18:20
- 2h 30m
- Direct
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Southwest Airlines (WN 3126)Boeing 737 Max 8 Passenger -
Southwest Airlines (WN 3126) -
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05:35 STL12:40 BOS6Hrs, 05m 1 Stop (MDW)
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STLSt Louis Lambert Intl Airport 05:35 - BOS 12:40 6h 05m 1 Stop (MDW) Chicago
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STLSt Louis Lambert Intl Airport 05:35MDWChicago Midway Airport 09:30
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MDWChicago Midway Airport 06:45BOSBoston Logan International Airport 12:40
- 6h 05m (2h 45m)
- 1 Stop MDW · Chicago 2h 45m
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Southwest Airlines (WN 3171)Boeing 737 Max 8 Passenger Southwest Airlines (WN 2666)Boeing 737 800 -
Southwest Airlines (WN 3171) -
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05:36 STL11:43 BOS5Hrs, 07m 1 Stop (ORD)
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STLSt Louis Lambert Intl Airport 05:36 - BOS 11:43 5h 07m 1 Stop (ORD) Chicago
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STLSt Louis Lambert Intl Airport 05:36ORDChicago O'Hare International Airport 08:20
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ORDChicago O'Hare International Airport 07:05BOSBoston Logan International Airport 11:43
- 5h 07m (1h 15m)
- 1 Stop ORD · Chicago 1h 15m
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American Airlines (AA 629)Boeing 737 800 American Airlines (AA 314)Boeing 737 800 -
American Airlines (AA 629) -
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05:45 STL11:26 BOS4Hrs, 41m 1 Stop (ORD)
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STLSt Louis Lambert Intl Airport 05:45 - BOS 11:26 4h 41m 1 Stop (ORD) Chicago
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STLSt Louis Lambert Intl Airport 05:45ORDChicago O'Hare International Airport 08:05
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ORDChicago O'Hare International Airport 07:14BOSBoston Logan International Airport 11:26
- 4h 41m (51m)
- 1 Stop ORD · Chicago 51m
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American Airlines (AA 629)Boeing 737 800 American Airlines (AA 314)Boeing 737 800 -
American Airlines (AA 629) -
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06:15 STL12:07 BOS4Hrs, 52m 1 Stop (DCA)
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STLSt Louis Lambert Intl Airport 06:15 - BOS 12:07 4h 52m 1 Stop (DCA) Washington
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STLSt Louis Lambert Intl Airport 06:15DCAWashington Ronald Reagan National Airport 10:15
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DCAWashington Ronald Reagan National Airport 09:19BOSBoston Logan International Airport 12:07
- 4h 52m (56m)
- 1 Stop DCA · Washington 56m
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American Airlines (AA 5468)Crj 700 Canadair Regional American Airlines (AA 4635)Embraer Emb 175 -
American Airlines (AA 5468) -
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06:15 STL12:18 BOS5Hrs, 03m 1 Stop (DCA)
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STLSt Louis Lambert Intl Airport 06:15 - BOS 12:18 5h 03m 1 Stop (DCA) Washington
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STLSt Louis Lambert Intl Airport 06:15DCAWashington Ronald Reagan National Airport 10:40
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DCAWashington Ronald Reagan National Airport 09:19BOSBoston Logan International Airport 12:18
- 5h 03m (1h 21m)
- 1 Stop DCA · Washington 1h 21m
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American Airlines (AA 4360)Embraer Emb 175 American Airlines (AA 2134)Airbus -
American Airlines (AA 4360) -
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06:15 STL12:21 BOS5Hrs, 06m 1 Stop (DCA)
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STLSt Louis Lambert Intl Airport 06:15 - BOS 12:21 5h 06m 1 Stop (DCA) Washington
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STLSt Louis Lambert Intl Airport 06:15DCAWashington Ronald Reagan National Airport 10:40
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DCAWashington Ronald Reagan National Airport 09:19BOSBoston Logan International Airport 12:21
- 5h 06m (1h 21m)
- 1 Stop DCA · Washington 1h 21m
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American Airlines (AA 5468)Crj 700 Canadair Regional American Airlines (AA 4635)Embraer Emb 175 -
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06:15 STL12:21 BOS5Hrs, 06m 1 Stop (DCA)
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STLSt Louis Lambert Intl Airport 06:15 - BOS 12:21 5h 06m 1 Stop (DCA) Washington
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STLSt Louis Lambert Intl Airport 06:15DCAWashington Ronald Reagan National Airport 10:40
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DCAWashington Ronald Reagan National Airport 09:19BOSBoston Logan International Airport 12:21
- 5h 06m (1h 21m)
- 1 Stop DCA · Washington 1h 21m
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American Airlines (AA 4360)Embraer Emb 175 American Airlines (AA 4635)Embraer Emb 175 -
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06:30 STL11:45 BOS4Hrs, 15m 1 Stop (MDW)
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STLSt Louis Lambert Intl Airport 06:30 - BOS 11:45 4h 15m 1 Stop (MDW) Chicago
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STLSt Louis Lambert Intl Airport 06:30MDWChicago Midway Airport 08:30
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MDWChicago Midway Airport 07:40BOSBoston Logan International Airport 11:45
- 4h 15m (50m)
- 1 Stop MDW · Chicago 50m
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Southwest Airlines (WN 367)Boeing 737 800 Southwest Airlines (WN 2666)Boeing 737 700 -
Southwest Airlines (WN 367) -
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06:30 STL11:59 BOS4Hrs, 29m 1 Stop (PHL)
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STLSt Louis Lambert Intl Airport 06:30 - BOS 11:59 4h 29m 1 Stop (PHL) Philadelphia
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STLSt Louis Lambert Intl Airport 06:30PHLPhiladelphia International Airport 10:35
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PHLPhiladelphia International Airport 09:39BOSBoston Logan International Airport 11:59
- 4h 29m (56m)
- 1 Stop PHL · Philadelphia 56m
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American Airlines (AA 5167)Crj 700 Canadair Regional American Airlines (AA 4499)Embraer Emb 175 -
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06:30 STL12:20 BOS4Hrs, 50m 1 Stop (PHL)
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STLSt Louis Lambert Intl Airport 06:30 - BOS 12:20 4h 50m 1 Stop (PHL) Philadelphia
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STLSt Louis Lambert Intl Airport 06:30PHLPhiladelphia International Airport 10:59
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PHLPhiladelphia International Airport 09:39BOSBoston Logan International Airport 12:20
- 4h 50m (1h 20m)
- 1 Stop PHL · Philadelphia 1h 20m
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American Airlines (AA 5167)Crj 700 Canadair Regional American Airlines (AA 1416)Airbus -
American Airlines (AA 5167) -
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07:20 STL13:57 BOS5Hrs, 37m 1 Stop (CLT)
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STLSt Louis Lambert Intl Airport 07:20 - BOS 13:57 5h 37m 1 Stop (CLT) Charlotte
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STLSt Louis Lambert Intl Airport 07:20CLTCharlotte Airport 11:30
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CLTCharlotte Airport 10:20BOSBoston Logan International Airport 13:57
- 5h 37m (1h 10m)
- 1 Stop CLT · Charlotte 1h 10m
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American Airlines (AA 712)Boeing 737 800 American Airlines (AA 3215)Airbus -
American Airlines (AA 712) -
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07:50 STL13:10 BOS4Hrs, 20m 1 Stop (BNA)
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STLSt Louis Lambert Intl Airport 07:50 - BOS 13:10 4h 20m 1 Stop (BNA) Nashville
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STLSt Louis Lambert Intl Airport 07:50BNANashville Airport 09:45
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BNANashville Airport 09:00BOSBoston Logan International Airport 13:10
- 4h 20m (45m)
- 1 Stop BNA · Nashville 45m
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Southwest Airlines (WN 1766)Boeing 737 Max 8 Passenger Southwest Airlines (WN 1828)Boeing 737 Max 8 Passenger -
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08:25 STL14:26 BOS5Hrs, 01m 1 Stop (IAD)
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STLSt Louis Lambert Intl Airport 08:25 - BOS 14:26 5h 01m 1 Stop (IAD) Washington
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STLSt Louis Lambert Intl Airport 08:25IADWashington Dulles International Airport 12:50
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IADWashington Dulles International Airport 11:43BOSBoston Logan International Airport 14:26
- 5h 01m (1h 07m)
- 1 Stop IAD · Washington 1h 07m
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United Airlines (UA 4506)Canadair Regional Jet 550 United Airlines (UA 2060)Airbus -
United Airlines (UA 4506) -
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09:15 STL15:05 BOS4Hrs, 50m 1 Stop (BWI)
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STLSt Louis Lambert Intl Airport 09:15 - BOS 15:05 4h 50m 1 Stop (BWI) Baltimore
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STLSt Louis Lambert Intl Airport 09:15BWIBaltimore Washington International Airport 13:40
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BWIBaltimore Washington International Airport 12:15BOSBoston Logan International Airport 15:05
- 4h 50m (1h 25m)
- 1 Stop BWI · Baltimore 1h 25m
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Southwest Airlines (WN 4604)Boeing 737 700 Southwest Airlines (WN 2844)Boeing 737 800 -
Southwest Airlines (WN 4604) -
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09:30 STL17:02 BOS6Hrs, 32m 1 Stop (CLT)
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STLSt Louis Lambert Intl Airport 09:30 - BOS 17:02 6h 32m 1 Stop (CLT) Charlotte
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STLSt Louis Lambert Intl Airport 09:30CLTCharlotte Airport 14:54
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CLTCharlotte Airport 12:16BOSBoston Logan International Airport 17:02
- 6h 32m (2h 38m)
- 1 Stop CLT · Charlotte 2h 38m
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American Airlines (AA 2493)Airbus American Airlines (AA 1886)Airbus -
American Airlines (AA 2493) -
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12:25 STL17:40 BOS4Hrs, 15m 1 Stop (BWI)
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STLSt Louis Lambert Intl Airport 12:25 - BOS 17:40 4h 15m 1 Stop (BWI) Baltimore
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STLSt Louis Lambert Intl Airport 12:25BWIBaltimore Washington International Airport 16:10
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BWIBaltimore Washington International Airport 15:20BOSBoston Logan International Airport 17:40
- 4h 15m (50m)
- 1 Stop BWI · Baltimore 50m
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Southwest Airlines (WN 3342)Boeing 737 700 Southwest Airlines (WN 615)Boeing 737 700 -
Southwest Airlines (WN 3342) -
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12:25 STL19:15 BOS5Hrs, 50m 1 Stop (BWI)
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STLSt Louis Lambert Intl Airport 12:25 - BOS 19:15 5h 50m 1 Stop (BWI) Baltimore
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STLSt Louis Lambert Intl Airport 12:25BWIBaltimore Washington International Airport 17:45
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BWIBaltimore Washington International Airport 15:20BOSBoston Logan International Airport 19:15
- 5h 50m (2h 25m)
- 1 Stop BWI · Baltimore 2h 25m
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Southwest Airlines (WN 3342)Boeing 737 700 Southwest Airlines (WN 3773)Boeing 737 700 -
Southwest Airlines (WN 3342) -
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13:05 STL18:46 BOS4Hrs, 41m 1 Stop (IAD)
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STLSt Louis Lambert Intl Airport 13:05 - BOS 18:46 4h 41m 1 Stop (IAD) Washington
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STLSt Louis Lambert Intl Airport 13:05IADWashington Dulles International Airport 17:10
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IADWashington Dulles International Airport 16:13BOSBoston Logan International Airport 18:46
- 4h 41m (57m)
- 1 Stop IAD · Washington 57m
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United Airlines (UA 4454)Canadair Regional Jet 550 United Airlines (UA 688)Airbus -
United Airlines (UA 4454) -
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13:05 STL18:50 BOS4Hrs, 45m 1 Stop (IAD)
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STLSt Louis Lambert Intl Airport 13:05 - BOS 18:50 4h 45m 1 Stop (IAD) Washington
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STLSt Louis Lambert Intl Airport 13:05IADWashington Dulles International Airport 17:10
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IADWashington Dulles International Airport 16:13BOSBoston Logan International Airport 18:50
- 4h 45m (57m)
- 1 Stop IAD · Washington 57m
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United Airlines (UA 4454)Canadair Regional Jet 550 United Airlines (UA 3468)Embraer 175 -
United Airlines (UA 4454) -
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13:20 STL19:10 BOS4Hrs, 50m 1 Stop (MDW)
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STLSt Louis Lambert Intl Airport 13:20 - BOS 19:10 4h 50m 1 Stop (MDW) Chicago
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STLSt Louis Lambert Intl Airport 13:20MDWChicago Midway Airport 15:55
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MDWChicago Midway Airport 14:25BOSBoston Logan International Airport 19:10
- 4h 50m (1h 30m)
- 1 Stop MDW · Chicago 1h 30m
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Southwest Airlines (WN 2906)Boeing 737 Max 8 Passenger Southwest Airlines (WN 1933)Boeing 737 Max 8 Passenger -
Southwest Airlines (WN 2906) -
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13:35 STL21:35 BOS7Hrs, 00m 1 Stop (MDW)
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STLSt Louis Lambert Intl Airport 13:35 - BOS 21:35 7h 1 Stop (MDW) Chicago
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STLSt Louis Lambert Intl Airport 13:35MDWChicago Midway Airport 18:25
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MDWChicago Midway Airport 14:40BOSBoston Logan International Airport 21:35
- 7h (3h 45m)
- 1 Stop MDW · Chicago 3h 45m
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Southwest Airlines (WN 2906)Boeing 737 800 Southwest Airlines (WN 1933)Boeing 737 Max 8 Passenger -
Southwest Airlines (WN 2906) -
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13:40 STL19:40 BOS5Hrs, 00m 1 Stop (BNA)
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STLSt Louis Lambert Intl Airport 13:40 - BOS 19:40 5h 1 Stop (BNA) Nashville
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STLSt Louis Lambert Intl Airport 13:40BNANashville Airport 16:15
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BNANashville Airport 14:50BOSBoston Logan International Airport 19:40
- 5h (1h 25m)
- 1 Stop BNA · Nashville 1h 25m
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Southwest Airlines (WN 2004)Boeing 737 800 Southwest Airlines (WN 3239)Boeing 737 700 -
Southwest Airlines (WN 2004) -
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13:45 STL21:36 BOS6Hrs, 51m 1 Stop (DFW)
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STLSt Louis Lambert Intl Airport 13:45 - BOS 21:36 6h 51m 1 Stop (DFW) Dallas
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STLSt Louis Lambert Intl Airport 13:45DFWDallas/Fort Worth Intl Airport 17:06
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DFWDallas/Fort Worth Intl Airport 15:45BOSBoston Logan International Airport 21:36
- 6h 51m (1h 21m)
- 1 Stop DFW · Dallas 1h 21m
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American Airlines (AA 1325)Airbus American Airlines (AA 595)Airbus A321 Neo -
American Airlines (AA 1325) -
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16:05 STL21:35 BOS4Hrs, 30m 1 Stop (MDW)
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STLSt Louis Lambert Intl Airport 16:05 - BOS 21:35 4h 30m 1 Stop (MDW) Chicago
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STLSt Louis Lambert Intl Airport 16:05MDWChicago Midway Airport 18:25
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MDWChicago Midway Airport 17:15BOSBoston Logan International Airport 21:35
- 4h 30m (1h 10m)
- 1 Stop MDW · Chicago 1h 10m
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Southwest Airlines (WN 2973)Boeing 737 Max 8 Passenger Southwest Airlines (WN 1933)Boeing 737 Max 8 Passenger -
Southwest Airlines (WN 2973) -
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16:45 STL22:10 BOS4Hrs, 25m 1 Stop (BNA)
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STLSt Louis Lambert Intl Airport 16:45 - BOS 22:10 4h 25m 1 Stop (BNA) Nashville
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STLSt Louis Lambert Intl Airport 16:45BNANashville Airport 18:45
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BNANashville Airport 17:55BOSBoston Logan International Airport 22:10
- 4h 25m (50m)
- 1 Stop BNA · Nashville 50m
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Southwest Airlines (WN 2215)Boeing 737 700 Southwest Airlines (WN 2456)Boeing 737 800 -
Southwest Airlines (WN 2215) -
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17:15 STL00:05 BOS5Hrs, 50m 1 Stop (BWI)
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STLSt Louis Lambert Intl Airport 17:15 - BOS 00:05 5h 50m 1 Stop (BWI) Baltimore
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STLSt Louis Lambert Intl Airport 17:15BWIBaltimore Washington International Airport 22:40
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BWIBaltimore Washington International Airport 20:10BOSBoston Logan International Airport 00:05
- 5h 50m (2h 30m)
- 1 Stop BWI · Baltimore 2h 30m
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Southwest Airlines (WN 3961)Boeing 737 Max 8 Passenger Southwest Airlines (WN 4784)Boeing 737 Max 8 Passenger -
Southwest Airlines (WN 3961) -
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17:27 STL00:54 BOS6Hrs, 27m 1 Stop (ORD)
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STLSt Louis Lambert Intl Airport 17:27 - BOS 00:54 6h 27m 1 Stop (ORD) Chicago
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STLSt Louis Lambert Intl Airport 17:27ORDChicago O'Hare International Airport 21:30
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ORDChicago O'Hare International Airport 18:49BOSBoston Logan International Airport 00:54
- 6h 27m (2h 41m)
- 1 Stop ORD · Chicago 2h 41m
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United Airlines (UA 602)Boeing 737 800 United Airlines (UA 2627)Boeing 737 900 -
United Airlines (UA 602) -
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The fastest flight time for direct flights from Saint Louis to Boston is 2 hours 30 minutes. Check latest flight schedules & prices on Wego.
The flight distance between Saint Louis and Boston is 1667km. Check all available flights on Wego.
The earliest flight of the day departs at 05:35. The last flight of the day departs at 18:15. See the full list of flight times on Wego.
There are 1 airlines that offer direct flights from Saint Louis to Boston. Find out the list of airlines on Wego.