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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 6/1. Fares are subject to change and may not be available on all flights or dates of travel.
STL — BWI
May 24 — May 311
Sun 5/24
Sun 5/31
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 April 24, 2026.

This Kiwi.com deal was found by Cheapflights users on 4/21. 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.
Mon 6/16:24 pm
MCI
-
BWI
1 stop12h 19m
Frontier
Tue 6/99:43 pm
BWI
-
MCI
1 stop20h 38m
Frontier
Deal found 4/21$127
This Kiwi.com deal was found by Cheapflights users on 4/23. 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 6/36:24 pm
MCI
-
BWI
1 stop12h 19m
Frontier
Tue 6/99:43 pm
BWI
-
MCI
1 stop20h 38m
Frontier
Deal found 4/23$128
This Kiwi.com deal was found by Cheapflights users on 4/21. 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.
Mon 6/16:24 pm
MCI
-
BWI
1 stop12h 19m
Frontier
Wed 6/106:28 am
BWI
-
MCI
1 stop11h 53m
Frontier
Deal found 4/21$129
This Kiwi.com deal was found by Cheapflights users on 4/22. 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.
Mon 6/16:24 pm
MCI
-
BWI
1 stop12h 19m
Frontier
Wed 6/38:52 am
BWI
-
MCI
1 stop9h 37m
Frontier
Deal found 4/22$131
This Kiwi.com deal was found by Cheapflights users on 4/21. 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.
Mon 6/296:16 pm
MCI
-
BWI
1 stop12h 19m
Frontier
Wed 7/18:31 am
BWI
-
MCI
1 stop9h 50m
Frontier
Deal found 4/21$140
This Kiwi.com deal was found by Cheapflights users on 4/23. 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 6/56:24 pm
MCI
-
BWI
1 stop12h 19m
Frontier
Tue 6/91:10 pm
BWI
-
MCI
2 stops29h 11m
Frontier
Deal found 4/23$156
This Kiwi.com deal was found by Cheapflights users on 4/21. 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.
Mon 6/16:24 pm
MCI
-
BWI
1 stop12h 19m
Frontier
Thu 6/49:43 pm
BWI
-
MCI
1 stop20h 46m
Frontier
Deal found 4/21$158
This Frontier deal was found by Cheapflights users on 4/19. 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.
Mon 5/48:23 pm
STL
-
BWI
1 stop10h 20m
Frontier
Tue 5/128:52 am
BWI
-
STL
1 stop9h 41m
Frontier
Deal found 4/19$160
This Kiwi.com deal was found by Cheapflights users on 4/22. 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.
Mon 6/16:24 pm
MCI
-
BWI
2 stops20h 04m
Multiple Airlines
Wed 6/38:52 am
BWI
-
MCI
1 stop9h 37m
Multiple Airlines
Deal found 4/22$162
This Kiwi.com deal was found by Cheapflights users on 4/22. 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.
Sat 6/66:24 pm
MCI
-
BWI
1 stop12h 19m
Frontier
Mon 6/86:45 am
BWI
-
MCI
1 stop11h 44m
Frontier
Deal found 4/22$165
This Kiwi.com deal was found by Cheapflights users on 4/21. 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.
Mon 6/16:24 pm
MCI
-
BWI
2 stops20h 04m
Multiple Airlines
Tue 6/99:43 pm
BWI
-
MCI
1 stop20h 38m
Multiple Airlines
Deal found 4/21$166
This Kiwi.com deal was found by Cheapflights users on 4/22. 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 5/275:27 pm
STL
-
BWI
1 stop13h 16m
Frontier
Mon 6/19:23 pm
BWI
-
STL
1 stop21h 10m
Frontier
Deal found 4/22$167

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 April 24, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$127
(Kiwi.com)

One-way from

$66
(Kiwi.com)

Popular in

February

Cheapest in

August

Average price

$346
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. 13% potential increase in price ($46 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($5 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 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 April 24, 2026.
Use the filters below to find and compare flights from Missouri to Baltimore that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

St. LouisBaltimore

STL - BWI

STLBWI

Lambert-St Louis

Thu 9/24

3:42 pm-10:42 pm

1 stop6h 00m

Baltimore/Washington

Mon 9/28

8:10 am-2:38 pm

1 stop7h 28m

$251

St. LouisBaltimore

STL - BWI

STLBWI

Lambert-St Louis

Tue 5/19

2:30 pm-7:55 pm

1 stop4h 25m

Baltimore/Washington

Tue 5/26

6:30 am-11:30 am

1 stop6h 00m

$252

SpringfieldBaltimore

SGF - BWI

SGFBWI

Springfield-Branson

Tue 6/23

6:41 pm-12:33 am

1 stop4h 52m

Baltimore/Washington

Tue 6/30

7:10 pm-11:42 pm

1 stop5h 32m

$275

SpringfieldBaltimore

SGF - BWI

SGFBWI

Springfield-Branson

Tue 6/2

6:49 pm-12:47 am

1 stop4h 58m

Baltimore/Washington

Tue 6/9

2:10 pm-6:12 pm

1 stop5h 02m

$275
Quickest round-trip

St. LouisBaltimore

STL - BWI

STLBWI

Lambert-St Louis

Thu 5/28

7:45 pm-10:45 pm

Nonstop2h 00m

Baltimore/Washington

Tue 6/2

6:10 am-7:30 am

Nonstop2h 20m

$307

SpringfieldBaltimore

SGF - BWI

SGFBWI

Springfield-Branson

Wed 6/3

6:49 pm-12:47 am

1 stop4h 58m

Baltimore/Washington

Tue 6/9

2:10 pm-6:12 pm

1 stop5h 02m

$307

ColumbiaBaltimore

COU - BWI

COUBWI

Columbia Regional

Fri 5/15

4:28 pm-12:06 am

1 stop6h 38m

Baltimore/Washington

Sun 5/17

5:39 am-9:43 am

1 stop5h 04m

$318

ColumbiaBaltimore

COU - BWI

COUBWI

Columbia Regional

Sat 6/27

3:05 pm-9:26 pm

1 stop5h 21m

Baltimore/Washington

Wed 7/15

6:15 am-10:48 am

1 stop5h 33m

$318

ColumbiaBaltimore

COU - BWI

COUBWI

Columbia Regional

Thu 5/7

8:00 am-2:13 pm

1 stop5h 13m

Baltimore/Washington

Mon 5/11

6:15 am-10:55 am

1 stop5h 40m

$328

ColumbiaBaltimore

COU - BWI

COUBWI

Columbia Regional

Sat 5/9

11:30 am-7:09 pm

1 stop6h 39m

Baltimore/Washington

Wed 5/13

6:15 am-10:55 am

1 stop5h 40m

$328

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/19

Showing 1-10 of 60 resultsSorted by cheapest first
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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

How far ahead should I book a flight from Missouri to Baltimore?

The best time to book flights from Missouri to Baltimore is 65 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

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

Currently, March is the cheapest month in which you can book a flight from Missouri to Baltimore (average of $80). Flying from Missouri to Baltimore in January is currently the most expensive (average of $319). 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 April 24, 2026.

A simple way to save on the total cost of your ticket is to fly from Missouri to Baltimore at noon. If you’re flexible enough to do this you can expect to save up to 7% on your trip compared to booking a flight in the evening.

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 April 18, 2026.

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

How much does it cost to fly round-trip from Missouri to Baltimore?

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, 28 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 $252, Delta can have you in Baltimore from Missouri in 4h 25m. The distance from Missouri to Baltimore is about 736 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines to fly from Missouri to Baltimore one-way?

    To fly one-way, consider booking your trip with Frontier, which is currently one of the cheapest options available, starting at $81. American Airlines flights start at $106 while deals on Southwest start at $108 one-way.

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

    When deciding which route to take from Missouri to Baltimore consider Kansas City - Baltimore/Washington, Lambert-St Louis - 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 $164. On average you can expect to pay $432. The most popular route, (Kansas City - Baltimore/Washington), can usually be booked for $169.

  • 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, March is the cheapest month in which you can book a flight from Missouri to Baltimore (average of $80). Flying from Missouri to Baltimore in January is currently the most expensive (average of $319). 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

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Alternative routes for Missouri to Baltimore

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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 April 24, 2026.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$80Average$196FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$96Average$287FlexibilityNo cancel feeOn-time65%
DeltaCheapest$126Average$357FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$158Average$371FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$163Average$470FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$251Average$408FlexibilityNo cancel feeOn-time63%

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