Fare Guide

Estimated lowest fares found within 7 days

Cheapest Airline Frontier Airlines

The cheapest airline(s) flying from Boston to Saint Louis is Frontier Airlines.

  • Frontier Airlines Frontier Airlines
  • Delta Air Lines Delta Air Lines
  • American Airlines American Airlines
  • Spirit Airlines Spirit Airlines
  • Southwest Airlines Southwest Airlines
  • United Airlines United Airlines
  • Alaska Airlines Alaska Airlines
Cheapest Month November

Travel Period: November 2024 - October 2025

The cheapest month(s) to fly from Boston to Saint Louis is November.

  • Nov 2024
  • Dec 2024
  • Jan 2025
  • Feb 2025
  • Mar 2025
  • Apr 2025
  • May 2025
  • Jun 2025
  • Jul 2025
  • Aug 2025
  • Sep 2025
  • Oct 2025
Cheapest Day of the Week Tuesday

The cheapest day(s) of the week to fly from Boston to Saint Louis is Tuesday.

  • Sun Sunday
  • Mon Monday
  • Tue Tuesday
  • Wed Wednesday
  • Thu Thursday
  • Fri Friday
  • Sat Saturday

Flight Schedules

Last Updated: Wed, 2 Oct, 2024

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    • Airline Filter by Airline
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      • Availability
        • M
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      • 06:00 BOS
        10:07 STL
        5Hrs, 07m Direct
      • BOSBoston Logan International Airport 06:00 - STL 10:07 5h 07m Direct
      • BOSBoston Logan International Airport 06:00
      • STLSt Louis Lambert Intl Airport 10:07
      • 5h 07m
      • Direct
      • United Airlines (UA 1414)Boeing 737 800
      • United Airlines (UA 1414)
        • M
        • T
        • -
        • -
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      • Boeing 737 800
      • 06:00 BOS
        10:07 STL
        5Hrs, 07m Direct
      • BOSBoston Logan International Airport 06:00 - STL 10:07 5h 07m Direct
      • BOSBoston Logan International Airport 06:00
      • STLSt Louis Lambert Intl Airport 10:07
      • 5h 07m
      • Direct
      • United Airlines (UA 1414)Boeing 737 900
      • United Airlines (UA 1414)
        • -
        • -
        • W
        • T
        • F
        • -
        • -
      • Boeing 737 900
      • 06:45 BOS
        08:45 STL
        3Hrs, 00m Direct
      • BOSBoston Logan International Airport 06:45 - STL 08:45 3h Direct
      • BOSBoston Logan International Airport 06:45
      • STLSt Louis Lambert Intl Airport 08:45
      • 3h
      • Direct
      • Southwest Airlines (WN 1800)Boeing 737 Max 8 Passenger
      • Southwest Airlines (WN 1800)
        • -
        • -
        • -
        • -
        • F
        • -
        • -
      • Boeing 737 Max 8 Passenger
      • 06:45 BOS
        08:45 STL
        3Hrs, 00m Direct
      • BOSBoston Logan International Airport 06:45 - STL 08:45 3h Direct
      • BOSBoston Logan International Airport 06:45
      • STLSt Louis Lambert Intl Airport 08:45
      • 3h
      • Direct
      • Southwest Airlines (WN 1800)Boeing 737 800
      • Southwest Airlines (WN 1800)
        • -
        • -
        • -
        • T
        • -
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        • -
      • Boeing 737 800
      • 06:55 BOS
        09:00 STL
        3Hrs, 05m Direct
      • BOSBoston Logan International Airport 06:55 - STL 09:00 3h 05m Direct
      • BOSBoston Logan International Airport 06:55
      • STLSt Louis Lambert Intl Airport 09:00
      • 3h 05m
      • Direct
      • Southwest Airlines (WN 865)Boeing 737 800
      • Southwest Airlines (WN 865)
        • -
        • -
        • -
        • -
        • -
        • -
        • S
      • Boeing 737 800
      • 07:00 BOS
        09:00 STL
        3Hrs, 00m Direct
      • BOSBoston Logan International Airport 07:00 - STL 09:00 3h Direct
      • BOSBoston Logan International Airport 07:00
      • STLSt Louis Lambert Intl Airport 09:00
      • 3h
      • Direct
      • American Airlines (AA 3563)Embraer Emb 175
      • American Airlines (AA 3563)
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        • T
        • F
        • -
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      • Embraer Emb 175
      • 07:55 BOS
        09:50 STL
        2Hrs, 55m Direct
      • BOSBoston Logan International Airport 07:55 - STL 09:50 2h 55m Direct
      • BOSBoston Logan International Airport 07:55
      • STLSt Louis Lambert Intl Airport 09:50
      • 2h 55m
      • Direct
      • Southwest Airlines (WN 3386)Boeing 737 800
      • Southwest Airlines (WN 3386)
        • M
        • -
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        • -
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      • Boeing 737 800
      • 08:05 BOS
        10:05 STL
        3Hrs, 00m Direct
      • BOSBoston Logan International Airport 08:05 - STL 10:05 3h Direct
      • BOSBoston Logan International Airport 08:05
      • STLSt Louis Lambert Intl Airport 10:05
      • 3h
      • Direct
      • Southwest Airlines (WN 1800)Boeing 737 800
      • Southwest Airlines (WN 1800)
        • -
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        • -
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        • -
      • Boeing 737 800
      • 08:15 BOS
        10:15 STL
        3Hrs, 00m Direct
      • BOSBoston Logan International Airport 08:15 - STL 10:15 3h Direct
      • BOSBoston Logan International Airport 08:15
      • STLSt Louis Lambert Intl Airport 10:15
      • 3h
      • Direct
      • Southwest Airlines (WN 3386)Boeing 737 Max 8 Passenger
      • Southwest Airlines (WN 3386)
        • -
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      • Boeing 737 Max 8 Passenger
      • 08:30 BOS
        10:29 STL
        2Hrs, 59m Direct
      • BOSBoston Logan International Airport 08:30 - STL 10:29 2h 59m Direct
      • BOSBoston Logan International Airport 08:30
      • STLSt Louis Lambert Intl Airport 10:29
      • 2h 59m
      • Direct
      • American Airlines (AA 3563)Embraer Emb 175
      • American Airlines (AA 3563)
        • -
        • -
        • -
        • -
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        • -
      • Embraer Emb 175
      • 10:50 BOS
        12:50 STL
        3Hrs, 00m Direct
      • BOSBoston Logan International Airport 10:50 - STL 12:50 3h Direct
      • BOSBoston Logan International Airport 10:50
      • STLSt Louis Lambert Intl Airport 12:50
      • 3h
      • Direct
      • Southwest Airlines (WN 3152)Boeing 737 Max 8 Passenger
      • Southwest Airlines (WN 3152)
        • -
        • -
        • -
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        • -
        • -
      • Boeing 737 Max 8 Passenger
      • 12:55 BOS
        14:50 STL
        2Hrs, 55m Direct
      • BOSBoston Logan International Airport 12:55 - STL 14:50 2h 55m Direct
      • BOSBoston Logan International Airport 12:55
      • STLSt Louis Lambert Intl Airport 14:50
      • 2h 55m
      • Direct
      • Southwest Airlines (WN 864)Boeing 737 Max 8 Passenger
      • Southwest Airlines (WN 864)
        • -
        • -
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        • -
      • Boeing 737 Max 8 Passenger
      • 13:00 BOS
        14:50 STL
        2Hrs, 50m Direct
      • BOSBoston Logan International Airport 13:00 - STL 14:50 2h 50m Direct
      • BOSBoston Logan International Airport 13:00
      • STLSt Louis Lambert Intl Airport 14:50
      • 2h 50m
      • Direct
      • Southwest Airlines (WN 3097)Boeing 737 700
      • Southwest Airlines (WN 3097)
        • -
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        • -
        • -
        • -
        • -
      • Boeing 737 700
      • 14:40 BOS
        16:35 STL
        2Hrs, 55m Direct
      • BOSBoston Logan International Airport 14:40 - STL 16:35 2h 55m Direct
      • BOSBoston Logan International Airport 14:40
      • STLSt Louis Lambert Intl Airport 16:35
      • 2h 55m
      • Direct
      • Southwest Airlines (WN 3097)Boeing 737 Max 8 Passenger
      • Southwest Airlines (WN 3097)
        • M
        • -
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      • Boeing 737 Max 8 Passenger
      • 15:00 BOS
        16:55 STL
        2Hrs, 55m Direct
      • BOSBoston Logan International Airport 15:00 - STL 16:55 2h 55m Direct
      • BOSBoston Logan International Airport 15:00
      • STLSt Louis Lambert Intl Airport 16:55
      • 2h 55m
      • Direct
      • Southwest Airlines (WN 189)Boeing 737 800
      • Southwest Airlines (WN 189)
        • -
        • -
        • -
        • -
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        • -
      • Boeing 737 800
      • 15:15 BOS
        17:15 STL
        3Hrs, 00m Direct
      • BOSBoston Logan International Airport 15:15 - STL 17:15 3h Direct
      • BOSBoston Logan International Airport 15:15
      • STLSt Louis Lambert Intl Airport 17:15
      • 3h
      • Direct
      • Southwest Airlines (WN 3152)Boeing 737 700
      • Southwest Airlines (WN 3152)
        • -
        • -
        • -
        • -
        • -
        • -
        • S
      • Boeing 737 700
      • 16:15 BOS
        18:15 STL
        3Hrs, 00m Direct
      • BOSBoston Logan International Airport 16:15 - STL 18:15 3h Direct
      • BOSBoston Logan International Airport 16:15
      • STLSt Louis Lambert Intl Airport 18:15
      • 3h
      • Direct
      • American Airlines (AA 3562)Embraer Emb 175
      • American Airlines (AA 3562)
        • M
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        • T
        • F
        • -
        • S
      • Embraer Emb 175
      • 17:30 BOS
        19:30 STL
        3Hrs, 00m Direct
      • BOSBoston Logan International Airport 17:30 - STL 19:30 3h Direct
      • BOSBoston Logan International Airport 17:30
      • STLSt Louis Lambert Intl Airport 19:30
      • 3h
      • Direct
      • Southwest Airlines (WN 2517)Boeing 737 800
      • Southwest Airlines (WN 2517)
        • -
        • T
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        • -
        • -
        • -
        • -
      • Boeing 737 800
      • 18:30 BOS
        20:30 STL
        3Hrs, 00m Direct
      • BOSBoston Logan International Airport 18:30 - STL 20:30 3h Direct
      • BOSBoston Logan International Airport 18:30
      • STLSt Louis Lambert Intl Airport 20:30
      • 3h
      • Direct
      • Southwest Airlines (WN 2517)Boeing 737 800
      • Southwest Airlines (WN 2517)
        • M
        • -
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        • -
      • Boeing 737 800
      • 19:30 BOS
        21:30 STL
        3Hrs, 00m Direct
      • BOSBoston Logan International Airport 19:30 - STL 21:30 3h Direct
      • BOSBoston Logan International Airport 19:30
      • STLSt Louis Lambert Intl Airport 21:30
      • 3h
      • Direct
      • Southwest Airlines (WN 2208)Boeing 737 Max 8 Passenger
      • Southwest Airlines (WN 2208)
        • -
        • -
        • -
        • T
        • F
        • -
        • -
      • Boeing 737 Max 8 Passenger
      • 19:55 BOS
        21:55 STL
        3Hrs, 00m Direct
      • BOSBoston Logan International Airport 19:55 - STL 21:55 3h Direct
      • BOSBoston Logan International Airport 19:55
      • STLSt Louis Lambert Intl Airport 21:55
      • 3h
      • Direct
      • Southwest Airlines (WN 2208)Boeing 737 700
      • Southwest Airlines (WN 2208)
        • -
        • -
        • -
        • -
        • -
        • -
        • S
      • Boeing 737 700
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      What’s the fastest flight time from Boston to Saint Louis?

      The fastest flight time for direct flights from Boston to Saint Louis is 2 hours 50 minutes. Check latest flight schedules & prices on Wego.

      How far is Saint Louis from Boston?

      The flight distance between Boston and Saint Louis is 1667km. Check all available flights on Wego.

      When is the earliest and latest flight of the day?

      The earliest flight of the day departs at 06:00. The last flight of the day departs at 06:00. See the full list of flight times on Wego.

      How many airlines offer direct flights from Boston to Saint Louis?

      There are 3 airlines that offer direct flights from Boston to Saint Louis. Find out the list of airlines on Wego.

      All Airports in Boston

      Boston Logan International Airport BOS

      All Airports in Saint Louis

      St Louis Lambert Intl Airport STL

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