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Cheap Flights from St Louis to Baltimore, MD, United States - STL to BWI Last modified: May 26, 2016 8:50 PM

Popular flights from St Louis to Baltimore Last modified: May 26, 2016 8:50 PM

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
Jun 22, 2016 Jun 28, 2016 $345
Jul 12, 2016 Jul 13, 2016 $345
Jul 19, 2016 Jul 26, 2016 $345
Aug 16, 2016 Aug 19, 2016 $345
Aug 19, 2016 Aug 21, 2016 $345
American Airlines
Departure Date Return Date Lowest Price
Aug 25, 2016 Aug 30, 2016 $321
Sep 3, 2016 Sep 7, 2016 $321
United Airlines
Departure Date Return Date Lowest Price
Aug 25, 2016 Aug 30, 2016 $322
Sep 3, 2016 Sep 7, 2016 $322

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

We have collected flight cost data from across the web for travel from St Louis to Baltimore, and have found the average flight price for this trip to be $343.

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

Airlines can adjust prices for plane tickets from St Louis to Baltimore 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 St Louis to Baltimore

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

Non Stop versus 1-Stop
Advanced PurchaseNon StopOne Stop
< 7 days $693 $552
7-14 days $491 $380
14-21 days $355 $353
21-30 days $345 $339
30-60 days $345 $339
60-90 days $345 $339
90+ days $345 $217

Cheapest Day To Fly from St Louis to Baltimore

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

Monday Tuesday Wednesday Thursday Friday Saturday Sunday
$352 $339 $339 $340 $339 $339 $350

Lowest Fares Chart By Month from St Louis to Baltimore

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

Month Origin Destination Carrier Depart Date Return Date Stops Price
May St Louis Baltimore United 5/31/16 6/3/16 1 $552
June St Louis Baltimore American 6/18/16 6/22/16 1 $339
July St Louis Baltimore American 7/12/16 7/13/16 1 $339
August St Louis Baltimore American 8/25/16 8/30/16 1 $321
September St Louis Baltimore American 9/3/16 9/7/16 1 $321
October St Louis Baltimore American 10/4/16 10/8/16 1 $321
November St Louis Baltimore American 11/5/16 11/9/16 1 $217
February St Louis Baltimore American 2/13/17 2/16/17 1 $385

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

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 St Louis to Baltimore.

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
TIPSave $199 by flying into New York instead of Baltimore from St Louis

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

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 St Louis to Baltimore. 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 St Louis to Baltimore is $170.

The average price for round trip flights from St Louis to Baltimore is $341.

St Louis to Baltimore Flight Questions

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

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

Airlines Flying from St Louis to Baltimore (STL to BWI) Number of flights searched: 185Last modified: May 26, 2016 8:50 PM

Below are the different airlines that fly from St Louis to Baltimore 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 St Louis to Baltimore.

St Louis to Baltimore
Airline Connections Mon Tue Wed Thu Fri Sat Sun
American PHL X X X X X X X
Delta MSP 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 BNA X X X X X X X

Airports for Your Route

These pages contain information about the major airports in St Louis and Baltimore, 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 St Louis - STL

FlightsAirlineLowest Price
St Louis to Washington American, Alaska, United $203
St Louis to New York American, Alaska, United $235
St Louis to Philadelphia American, Alaska, United $331
St Louis to Atlanta American, Alaska, Frontier, United $98
St Louis to Chicago American, Alaska, United $219
St Louis to Newark American, Alaska, United $235
St Louis to Harrisburg American, Alaska, United $369
St Louis to Richmond American, Alaska, United $275
St Louis to Charlotte American, Alaska, United $349
St Louis to Boston American, Alaska, United $348
St Louis to Pittsburgh American, Alaska, United $173
St Louis to Dallas - Ft Worth American, Alaska, United $209

Cheap Domestic Flights to Baltimore - BWI

Cheap Flights from St Louis to Baltimore, MD, United States, from $321 Round trip from STL to BWI