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Cheap Flights from Baltimore to St Louis, MO, United States - BWI to STL Last modified: May 27, 2016 1:09 AM

Popular flights from Baltimore to St Louis Last modified: May 27, 2016 1:09 AM

We’ve got the inside scoop on finding the best time to fly for the best price. Not sure when to travel for your next vacation? Find details below on when-to-fly and when-to-buy.

Alaska Airlines
Departure Date Return Date Lowest Price
Aug 9, 2016 Aug 16, 2016 $342
American Airlines
Departure Date Return Date Lowest Price
Sep 1, 2016 Sep 3, 2016 $321
Sep 8, 2016 Sep 12, 2016 $321
United Airlines
Departure Date Return Date Lowest Price
Sep 8, 2016 Sep 12, 2016 $322

How Much Does it Cost to Fly from Baltimore to St Louis (BWI to STL)?

We have collected flight cost data from across the web for travel from Baltimore to St Louis, and have found the average flight price for this trip to be $342.

When Can I Buy the Cheapest Flight from Baltimore to St Louis (BWI to STL)?

Airlines can adjust prices for plane tickets from Baltimore to St Louis based on the day and time that you decide to book your flight. We have collected data from all airlines, and have discovered that the best days to book flights are Tuesdays, Wednesdays, and Saturdays. Read our article to find more information about the best time to buy airline tickets.

How far in advance should you book flights from Baltimore to St Louis

The chart below shows up-to-date information regarding how far in advance a flight from Baltimore to St Louis should be booked.

Non Stop versus 1-Stop
Advanced PurchaseNon StopOne Stop
< 7 days $619 $479
7-14 days $418 $357
14-21 days $391 $350
21-30 days $355 $349
30-60 days $355 $339
60-90 days $342 $330
90+ days $345 $321

Cheapest Day To Fly from Baltimore to St Louis

The chart below shows up-to-date information regarding the cheapest days to fly from Baltimore to St Louis.

Monday Tuesday Wednesday Thursday Friday Saturday Sunday
$347 $336 $339 $330 $339 $349 $349

Lowest Fares Chart By Month from Baltimore to St Louis

The chart below shows the lowest fare by month when flying from Baltimore to St Louis.

Month Origin Destination Carrier Depart Date Return Date Stops Price
May Baltimore St Louis United 5/31/16 6/6/16 1 $490
June Baltimore St Louis American 6/18/16 6/19/16 1 $349
July Baltimore St Louis American 7/6/16 7/12/16 1 $339
August Baltimore St Louis American 8/25/16 8/28/16 1 $330
September Baltimore St Louis American 9/1/16 9/3/16 1 $321
October Baltimore St Louis American 10/19/16 10/24/16 1 $321
January Baltimore St Louis American 1/11/17 1/14/17 1 $391
March Baltimore St Louis United 3/19/17 3/25/17 1 $436

Cheapest Weekend Non-Stop Flights for the Next 30 Days from Baltimore to St Louis

If you're ready to take a trip in the next 30 days and want to fly on the weekend, you might be wondering which weekend is the cheapest to fly. The chart below shows up-to-date data regarding weekend flight prices from Baltimore to St Louis.

Next 30 Days

SunMonTueWedThuFriSat
29 30 31 1 2 3 4
$639
5 6 7 8 9 10 11
$639 $491
12 13 14 15 16 17 18
$491 $355
19 20 21 22 23 24 25
$355 $365
26 27 28 29 30 1 2
$365 $355
3 4 5 6 7 8 9
$355

Round Trip vs One Way Flights from Baltimore to St Louis (BWI to STL)

We have found that there is often no price difference between buying a round trip flight versus a one way flight. Increased flexibility is the main benefit when it comes to buying a one way flight from Baltimore to St Louis. However, booking a round trip flight can be a simpler process. You can compare round trip and one way flights by using our flight comparison.

The average price for one way flights from Baltimore to St Louis is $168.

The average price for round trip flights from Baltimore to St Louis is $338.

Baltimore to St Louis Flight Questions

Below are some common questions that asked about this flight route:

Question: What are the most popular connecting cities when flying from Baltimore to St Louis?
Answer: Chicago, IL

Airlines Flying from Baltimore to St Louis (BWI to STL) Number of flights searched: 176Last modified: May 27, 2016 1:09 AM

Below are the different airlines that fly from Baltimore to St Louis with the average price of their plane tickets. Just remember that different airlines offer different levels of comfort and service, so consider convenience when choosing your airline.

Below is the full flight schedule summary of the next 30 days for flights from Baltimore to St Louis.

Baltimore to St Louis
Airline Connections Mon Tue Wed Thu Fri Sat Sun
American ORD X X X X X X X
Delta DTW X X X X X X X
United EWR X X X X X X X
Southwest - X X X X X X X
Southwest MKE X X X X X X X

Airports for Your Route

These pages contain information about the major airports in Baltimore and St Louis, so you can feel comfortable knowing how to get around whether you are about to take off or you just landed.

Cheap Domestic Flights from Baltimore - BWI

FlightsAirlineLowest Price
Baltimore to Chicago American, Spirit, United $107

Cheap Domestic Flights to St Louis - STL

FlightsAirlineLowest Price
New York to St Louis American, Alaska, United $235
Washington to St Louis American, Alaska, United $203
Philadelphia to St Louis American, Alaska, United $331
Newark to St Louis American, Alaska, United $235
Pittsburgh to St Louis American, United $176
Norfolk to St Louis American, Alaska, United $307
Richmond to St Louis American, Alaska, United $275
Newport News to St Louis American $347
New York to Chicago American, Alaska, JetBlue, Spirit, United $114
Charlottesville to St Louis American, United $294
Harrisburg to St Louis American, Alaska, United $369
State College to St Louis American, United $447
Allentown - Bethlehem - Easton to St Louis American, United $280
Wilkes - Barre to St Louis American, United $252
Lynchburg to St Louis American Check Dates
New York to Atlanta American, Alaska, Frontier, Spirit, United $148
New York to Los Angeles American, Alaska, JetBlue, Spirit, Sun Country, United, Virgin America $253
New York to Dallas - Ft Worth American, Alaska, JetBlue, Spirit, United, Virgin America $139
Washington to Chicago American, Alaska, Frontier, United $98
Philadelphia to Chicago American, Alaska, Frontier, United $108
New York to Orlando American, JetBlue, Frontier, Spirit, United $127
New York to Miami American, Frontier, United $136
Newark to Chicago American, Alaska, JetBlue, United $160
New York to Las Vegas American, Alaska, JetBlue, Spirit, United, Virgin America $241
New York to Detroit American, JetBlue, Spirit, United $143
Philadelphia to Atlanta American, Frontier, Spirit, United $99
New York to Minneapolis - St Paul American, Sun Country, United $272

Cheap International Flights to St Louis - STL

FlightsAirlineLowest Price
New York to London American, Air Berlin, Air France, Finnair, Alitalia, JetBlue, British Airways, airBaltic, Condor, OpenSkies, Aer Lingus, Iberia, Meridiana, KLM, Kuwait, Luxair, Lufthansa, LOT, Thomas Cook, Czech, Austrian, TAROM, SATA, XL Airways, SAS, Brussels, Tap Portugal, United, Air Europa, Virgin Atlantic, City Jet $752
New York to Toronto American, Air Canada, Alaska, JetBlue, Porter, United, WestJet $173
Cheap Flights from Baltimore to St Louis, MO, United States, from $321 Round trip from BWI to STL