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$66+ Cheap flights from Missouri to Baltimore (BWI)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 4/7. Fares are subject to change and may not be available on all flights or dates of travel.
STL — BWI
Feb 19 — Feb 261
Thu 2/19
Thu 2/26
1 adult, Economy
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Cheap flight deals from Missouri to Baltimore

Cheapest flights from Missouri to Baltimore
Explore the most affordable flight options available from Missouri to Baltimore. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 20, 2026.

This Kiwi.com deal was found by Cheapflights users on 1/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/2011:00 am
MCI
-
BWI
1 stop12h 31m
Frontier
Sun 2/226:00 am
BWI
-
MCI
1 stop28h 53m
Frontier
Deal found 1/20$144
This Kiwi.com deal was found by Cheapflights users on 1/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/43:49 pm
STL
-
BWI
1 stop15h 11m
Frontier
Wed 3/116:05 am
BWI
-
STL
1 stop5h 32m
Frontier
Deal found 1/18$146
This Booking.com deal was found by Cheapflights users on 1/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/55:42 pm
STL
-
BWI
1 stop27h 59m
Frontier
Sat 2/76:15 pm
BWI
-
STL
1 stop6h 18m
Frontier
Deal found 1/17$151
This Mytrip deal was found by Cheapflights users on 1/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/173:49 pm
STL
-
BWI
1 stop26h 41m
Frontier
Tue 2/247:54 pm
BWI
-
STL
1 stop27h 33m
Frontier
Deal found 1/20$153
This Kiwi.com deal was found by Cheapflights users on 1/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/1811:32 am
STL
-
BWI
1 stop12h 09m
Frontier
Mon 3/235:31 am
BWI
-
STL
1 stop9h 03m
Frontier
Deal found 1/17$158
This Kiwi.com deal was found by Cheapflights users on 1/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 1/285:42 pm
STL
-
BWI
1 stop16h 35m
Multiple Airlines
Sun 2/19:55 pm
BWI
-
STL
1 stop12h 26m
Multiple Airlines
Deal found 1/20$159
This Frontier deal was found by Cheapflights users on 1/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/711:00 am
STL
-
BWI
1 stop6h 50m
Frontier
Mon 2/91:05 pm
BWI
-
STL
1 stop11h 28m
Frontier
Deal found 1/18$160
This Kiwi.com deal was found by Cheapflights users on 1/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/1111:32 am
STL
-
BWI
1 stop12h 09m
Frontier
Thu 3/123:19 pm
BWI
-
STL
1 stop23h 15m
Frontier
Deal found 1/20$161
This Mytrip deal was found by Cheapflights users on 1/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 1/3112:12 pm
STL
-
BWI
1 stop9h 29m
Frontier
Tue 2/38:00 am
BWI
-
STL
1 stop16h 33m
Frontier
Deal found 1/17$169
This Kiwi.com deal was found by Cheapflights users on 1/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 1/305:42 pm
STL
-
BWI
1 stop16h 35m
Multiple Airlines
Sat 1/314:44 pm
BWI
-
STL
1 stop7h 49m
Multiple Airlines
Deal found 1/20$174
This Kiwi.com deal was found by Cheapflights users on 1/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/2711:00 am
MCI
-
BWI
1 stop5h 13m
Multiple Airlines
Mon 3/24:45 pm
BWI
-
MCI
1 stop23h 44m
Multiple Airlines
Deal found 1/20$176
This Kiwi.com deal was found by Cheapflights users on 1/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/48:22 pm
STL
-
BWI
2 stops13h 55m
Multiple Airlines
Sun 2/89:55 pm
BWI
-
STL
1 stop26h 38m
Multiple Airlines
Deal found 1/20$178

Find flight deals from Missouri to Baltimore

Keep the following information in mind while searching for Missouri to Baltimore flight deals. Data was last updated January 20, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

Expedia
3 stars

Round-trip from

$144
(Kiwi.com)

One-way from

$66
(Kiwi.com)

Popular in

January

Cheapest in

August

Average price

$382
Provider with most accurate pricing for Lambert-St Louis-Washington, D.C. (WAS) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Lambert-St Louis-Washington, D.C. (WAS) flights.
Search Deals
From Missouri to Baltimore/Washington
Search Deals
One-way flight from Missouri to Baltimore/Washington
Search Deals
Highest demand for flights based on searches. 11% potential increase in price ($39 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($8 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Missouri to Baltimore that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated January 20, 2026.
Use the filters below to find and compare flights from Missouri to Baltimore that are best for you.

Fly from

Missouri

Fly to

Baltimore

Route

Depart

Return

Price

St. LouisBaltimore

STL - BWI

STLBWI

Lambert-St Louis

Wed 3/18

11:32 am-12:41 am

1 stop12h 09m

Baltimore/Washington

Tue 3/24

3:19 pm-9:49 am

2 stops19h 30m

$210

St. LouisBaltimore

STL - BWI

STLBWI

Lambert-St Louis

Fri 3/20

12:16 pm-12:41 am

1 stop11h 25m

Baltimore/Washington

Mon 3/23

8:45 pm-10:31 am

2 stops14h 46m

$218

St. LouisBaltimore

STL - BWI

STLBWI

Lambert-St Louis

Thu 3/19

8:06 pm-2:24 pm

2 stops17h 18m

Baltimore/Washington

Mon 3/23

5:31 am-1:34 pm

1 stop9h 03m

$233

St. LouisBaltimore

STL - BWI

STLBWI

Lambert-St Louis

Mon 3/16

8:12 pm-2:24 pm

2 stops17h 12m

Baltimore/Washington

Fri 3/20

5:31 am-1:34 pm

1 stop9h 03m

$234

St. LouisBaltimore

STL - BWI

STLBWI

Lambert-St Louis

Mon 2/16

8:22 pm-12:31 am

1 stop27h 09m

Baltimore/Washington

Mon 2/23

2:58 pm-11:59 pm

1 stop10h 01m

$237

St. LouisBaltimore

STL - BWI

STLBWI

Lambert-St Louis

Sat 1/31

8:22 pm-10:29 am

1 stop13h 07m

Baltimore/Washington

Tue 2/3

1:00 pm-6:51 am

2 stops18h 51m

$243

St. LouisBaltimore

STL - BWI

STLBWI

Lambert-St Louis

Thu 2/5

5:42 pm-11:17 am

1 stop16h 35m

Baltimore/Washington

Sun 2/8

6:20 am-6:51 am

2 stops25h 31m

$245

KirksvilleBaltimore

IRK - BWI

IRKBWI

Kirksville Cannon Memorial

Wed 2/4

2:10 pm-11:10 am

1 stop20h 00m

Baltimore/Washington

Sun 2/8

9:20 am-6:45 pm

1 stop10h 25m

$250

SpringfieldBaltimore

SGF - BWI

SGFBWI

Springfield-Branson

Thu 2/12

5:32 pm-12:35 am

1 stop6h 03m

Baltimore/Washington

Wed 2/18

1:01 pm-4:47 pm

1 stop4h 46m

$279

St. LouisBaltimore

STL - BWI

STLBWI

Lambert-St Louis

Mon 3/30

7:47 am-5:43 pm

1 stop8h 56m

Baltimore/Washington

Tue 3/31

6:05 am-10:31 am

1 stop5h 26m

$289

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/19

Showing 1-10 of 60 results
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Best time to book a flight from Missouri to Baltimore

Have a flexible travel schedule? Discover the best time to fly to Baltimore from Missouri with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Missouri to Baltimore

What is the cheapest month to book a flight from Missouri to Baltimore?

Currently, December is the cheapest month in which you can book a flight from Missouri to Baltimore (average of $98). Flying from Missouri to Baltimore in June is currently the most expensive (average of $198). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from MO to BWI?

Find hourly flight availability from Missouri to Baltimore. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated January 20, 2026.

A simple way to save on the total cost of your ticket is to fly from Missouri to Baltimore in the afternoon. If you’re flexible enough to do this you can expect to save up to 3% on your trip compared to booking a flight in the morning.

What is the cheapest day to fly from Missouri to Baltimore?

Use this chart to determine the cheapest time to fly round-trip from Missouri to Baltimore. Price data was last updated on January 17, 2026.

Travelers seeking maximum savings on their Missouri to Baltimore flight should consider departing on Monday at noon when fares are most often at their lowest. Wednesday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

Related info for your journey

Find useful and relevant information for your journey from Missouri to Baltimore. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Baltimore from Missouri?

    Baltimore/Washington (BWI), located 8.5 mi from the city center, is the airport you fly into when you book flights from Missouri to Baltimore.

  • How popular is this Missouri to Baltimore flight route?

    Within the past month, 32 users have taken a look at flights from Missouri to Baltimore/Washington.

  • How long is the flight from Missouri to Baltimore?

    For as low as $294, Frontier can have you in Baltimore from Missouri in 4h 16m. The distance from Missouri to Baltimore is about 915 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the most popular routes from Missouri to Baltimore?

    When deciding which route to take from Missouri to Baltimore consider Lambert-St Louis - Baltimore/Washington, Kansas City - Baltimore/Washington or Springfield-Branson - Baltimore/Washington as they are the most popular.

  • What are the cheapest flights from Missouri to Baltimore?

    The cheapest flight price from Missouri to Baltimore is $154. On average you can expect to pay $356. The most popular route, (Lambert-St Louis - Baltimore/Washington), can usually be booked for $182.

  • Can I find deals for flights from Missouri to Baltimore that include hotel bookings?

    Yes. In addition to deals on Missouri to Baltimore flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Missouri to Baltimore?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Missouri to Baltimore.

  • Can I find deals for business class flights from Missouri to Baltimore?

    Yes. Cheapflights offers flight deals from Missouri to Baltimore by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Missouri to Baltimore?

    Currently, December is the cheapest month in which you can book a flight from Missouri to Baltimore (average of $98). Flying from Missouri to Baltimore in June is currently the most expensive (average of $198). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Missouri to Baltimore

See prices for flight routes from nearby airports that may be better suited for you.
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Top 6 airlines flying from Missouri to Baltimore

Discover the top 6 airlines that operate flights from Missouri to Baltimore. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated January 20, 2026.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$102Average$205FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$107Average$263FlexibilityNo cancel feeOn-time65%
American AirlinesCheapest$158Average$419FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$163Average$480FlexibilityNo cancel feeOn-time69%
DeltaCheapest$192Average$346FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$207Average$393FlexibilityNo cancel feeOn-time63%

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