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Cheap Flights from Baltimore to St. Louis
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Cheap Flights from Baltimore to St. Louis starting at S$ 80

Book one-way or return flights from Baltimore to St. Louis from as little as S$ 80. Choose from the popular airlines below and book your flight today!

  • One way
  • Round-trip
      • BWI21:17
        24h 36m
        1 stop
        STL20:53
        Tue, Apr 30|Baltimore - St. Louis|Frontier Airlines
        S$ 80S$ 192
        57% OFF
        57% OFF
        S$ 192S$ 80
      • BWI20:32
        11h 41m
        1 stop
        STL07:13
        Mon, May 13|Baltimore - St. Louis|Frontier Airlines
        S$ 81S$ 192
        57% OFF
        57% OFF
        S$ 192S$ 81
      • BWI21:00
        11h 13m
        1 stop
        STL07:13
        Sat, May 4|Baltimore - St. Louis|Frontier Airlines
        S$ 89S$ 192
        54% OFF
        54% OFF
        S$ 192S$ 89
      • BWI20:50
        18h 48m
        1 stop
        STL14:38
        Fri, May 3|Baltimore - St. Louis|Frontier Airlines
        S$ 92
        S$ 92
      • BWI06:14
        8h 23m
        1 stop
        STL13:37
        Tue, Jun 4|Baltimore - St. Louis|Spirit Airlines
        S$ 92
        S$ 92
      • BWI06:35
        8h 9m
        1 stop
        STL13:44
        Tue, Apr 30|Baltimore - St. Louis|Spirit Airlines
        S$ 102
        S$ 102
      • BWI20:32
        11h 41m
        1 stop
        STL07:13
        Mon, May 6|Baltimore - St. Louis|Frontier Airlines
        S$ 135
        S$ 135
      • BWI17:40
        27h 31m
        1 stop
        STL20:11
        Sun, Apr 28|Baltimore - St. Louis|Frontier Airlines
        S$ 144
        S$ 144
      • BWI07:40
        7h 55m
        1 stop
        STL14:35
        Thu, May 30|Baltimore - St. Louis|American Airlines
        S$ 148
        S$ 148
      • BWI07:45
        7h 41m
        1 stop
        STL14:26
        Wed, Jul 3|Baltimore - St. Louis|American Airlines
        S$ 148
        S$ 148
      • BWI13:00
        3h 5m
        Direct
        STL14:00
        Fri, May 3|Baltimore - St. Louis|Frontier Airlines
        Find More Flights
        Find More Flights

Crossed out prices are calculated based on the average price of the corresponding route on Trip.com.

Searching for the best last minute flight from Baltimore to St. Louis? Find one-way or return flights that are affordable and fit your itinerary.

Trip.com monitors the ticket fares of flights from Baltimore to St. Louis. Stay updated on price trends and snag the best deals for your upcoming trip.

Displayed prices are calculated based on the lowest average weekly prices of the corresponding route on Trip.com.
Cheapest Airlines flying from Baltimore to St. Louis

View airlines operating flights from Baltimore to St. Louis. Compare prices, find the option that best suits your travel needs, and enjoy a comfortable journey with a trusted airline.

Frontier Airlines
From S$ 80
Spirit Airlines
From S$ 92
American Airlines
From S$ 148
Sun Country Airlines
From S$ 177
United Airlines
From S$ 198
Southwest Airlines
From S$ 324
ANA airlines

Find more flights and airlines

Alternative Routes from Baltimore to St. Louis

Discover different routes, airlines, and transfers and find the best alternative flights for your journey from Baltimore to St. Louis.

  • Cheapest
    Frontier Airlines
    BWI
    21:17
    24h 36m
    1 transfer
    STL
    20:53
    Baltimore/Washington Thurgood Marshall International Airport - St. Louis Lambert International Airport
    Tue, Apr 30Frontier Airlines
    S$ 80
  • Frontier Airlines
    BWI
    21:17
    24h 36m
    1 transfer
    STL
    20:53
    Baltimore/Washington Thurgood Marshall International Airport - St. Louis Lambert International Airport
    Tue, Apr 30Frontier Airlines
    S$ 80
    Find More Flights

Frequently Asked Questions

  • When to buy flight tickets from Baltimore (BWI) to St. Louis (STL) the cheapest?

    Airlines adjust prices for flights from Baltimore to St. Louis based on the date and time of your booking. By analyzing data from all airlines, on Trip.com, you can find the cheapest flight prices on Tuesdays, Wednesdays, and Saturdays.

  • How much is a flight from Baltimore (BWI) to St. Louis (STL) cost?

    According to Trip.com's data, the lowest price is around S$ 470.

  • How long is a flight from Baltimore (BWI) to St. Louis (STL)?

    It takes about 3 hours 7 minutes to fly from Baltimore (BWI) to St. Louis (STL).

  • What is the transportation method from the main airport to downtown in St. Louis?

    • The distance from St. Louis Lambert International Airport to downtown is about 20km, by taxi about 40 minutes.

  • What are the most popular airlines that fly from Baltimore (BWI) to St. Louis (STL)?

    Airlines with flights from Baltimore (BWI) to St. Louis (STL): Southwest Airlines.

  • What's the most popular airline for direct flights from Baltimore (BWI) to St. Louis (STL)?

    Southwest Airlines operates 1 direct flights from Baltimore (BWI) to St. Louis (STL).

  • How many airports in St. Louis?

How to find a cheap flight from Baltimore to St. Louis

Wait until the last minute and flight costs are often sky-high. Plan ahead, book the right way, and your savings can soar. We have loads of saving tips to help you find a cheap flight from Baltimore to St. Louis. Book your flights at the right time and save more.
1
Book Early
Once prices are gone, they're gone. Lock in deals while you can!
2
Compare Flight Prices
Compare prices on travel agency and airline websites.
3
Look Out for Deals
Check airline and travel agency websites for latest flight deals
4
Check One-way Fares
Buying two cheap one-way flights can sometimes be a better deal than a round-trip.
5
Try Different Dates
Flying during the week, early in the morning, or late at night can help save money.
6
Use the Trip.com App
Save up to £10 per person when booking your flights on Trip.com
Flight Information from Baltimore to St. Louis

Cheapest direct flight price

S$ 79

Cheapest return ticket price

S$ 313

Cheapest month

April

Peak season for travel

October

Flight distance

1,170.34km

Average flight time

2 hours 50 minutes

Popular airline

United Airlines

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