Cheap flights from St. Louis to Baltimore (STL - BWI) from $105

This is the cheapest one-way flight price, found on 5/28. Prices may vary by date and flight preferences.
STL — BWI
Jun 4 — Jun 111

The best prices from Lambert-St Louis to Baltimore/Washington are usually found in October or September, booked 41 days in advance, depart on a Tuesday or Wednesday and return on a Wednesday

How to find the cheapest flight from St. Louis (STL) to Baltimore (BWI)

All the information you need to plan the best STL to BWI flight in 2023: compare St. Louis to Baltimore flight prices with the expected peak season, weather and rainfall in Baltimore.

Popular in

June

Cheapest in

October

Round-trip from

$218

One-way from

$113
High demand for flights, 22% potential price rise
Best time to find cheap flights, 38% potential price drop
From Lambert-St Louis to Baltimore/Washington
One-way flight from Lambert-St Louis to Baltimore/Washington

STL - BWI

Price

$218 - $446

BWI

Temperature

33.8 - 77 °F

BWI

Rainfall

2.9 - 4.1 inches

Cheap flights from St. Louis to Baltimore in May, June 2023

The best prices found for STL to BWI flights for May, June
Check out some of the best flight deals from St. Louis to Baltimore in 2023. More deals are always being added, so be sure to check back regularly.

St. Louis to Baltimore 2023 flight deals

Cheap flights to Baltimore from St. Louis found for this year
Check out some of the best flight deals from St. Louis to Baltimore in 2023. More deals are always being added, so be sure to check back regularly.

Cheap Spirit Airlines flights from St. Louis to Baltimore

Find some of the cheapest Spirit Airlines flights traveling from St. Louis to Baltimore. Come back soon if you're not finding the exact deal you're looking for.

Cheap Frontier flights from St. Louis to Baltimore

To aid your search, here are some of the cheapest Frontier flights we've found from St. Louis to Baltimore. Deals frequently update to provide users with more options.

Last minute flights from St. Louis to Baltimore

Late deals on return flights to Baltimore from St. Louis, departing today and this week
Book one of these great deals on flights from St. Louis to Baltimore. To prevent any unwanted surprises, users should verify their flight info before booking.

One-way flights to Baltimore from St. Louis

The cheapest one-way flights from St. Louis to Baltimore
Some of the best available deals we've found on one-way flights from St. Louis to Baltimore. For those needing a return trip from St. Louis, there is a search form available above.

Find flights from St. Louis to Baltimore within your budget

Use the slider to find flights from St. Louis to Baltimore that fit your budget.

Fly from

Any airport

Fly to

Any airport

Budget

$214 - $258

Route

Depart

Return

Price

Lambert-St LouisBaltimore/Washington

STL - BWI

STLBWI

Lambert-St Louis

Wed 6/28

1 stop9h 55m

Baltimore/Washington

Wed 7/5

1 stop6h 43m

Lambert-St LouisBaltimore/Washington

STL - BWI

STLBWI

Lambert-St Louis

Thu 6/22

1 stop14h 12m

Baltimore/Washington

Tue 6/27

1 stop21h 12m

Lambert-St LouisBaltimore/Washington

STL - BWI

STLBWI

Lambert-St Louis

Mon 6/12

2 stops19h 36m

Baltimore/Washington

Wed 6/14

1 stop6h 58m

Lambert-St LouisBaltimore/Washington

STL - BWI

STLBWI

Lambert-St Louis

Fri 6/9

1 stop21h 47m

Baltimore/Washington

Wed 6/14

1 stop6h 58m

Lambert-St LouisBaltimore/Washington

STL - BWI

STLBWI

Lambert-St Louis

Fri 6/23

1 stop6h 58m

Baltimore/Washington

Mon 6/26

1 stop20h 51m

Lambert-St LouisBaltimore/Washington

STL - BWI

STLBWI

Lambert-St Louis

Fri 8/18

1 stop15h 20m

Baltimore/Washington

Sun 8/20

1 stop10h 40m

Lambert-St LouisBaltimore/Washington

STL - BWI

STLBWI

Lambert-St Louis

Wed 8/2

1 stop22h 35m

Baltimore/Washington

Mon 8/7

1 stop17h 45m

Lambert-St LouisBaltimore/Washington

STL - BWI

STLBWI

Lambert-St Louis

Wed 6/28

1 stop6h 32m

Baltimore/Washington

Sun 7/2

1 stop4h 39m

Lambert-St LouisBaltimore/Washington

STL - BWI

STLBWI

Lambert-St Louis

Mon 7/17

1 stop8h 29m

Baltimore/Washington

Fri 7/21

1 stop17h 59m

Flights are sorted by cheapest first

Deals found on 5/29

Reviews of Airlines Servicing Baltimore

Read reviews from past customers who have flown Spirit Airlines, Frontier and Delta from St. Louis to Baltimore. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
2,363 reviews

Crew

8.5

Entertainment

7.8

Food

7.2

Comfort

7.9

Overall

8.0

Boarding

8.1

Reviews

1 / 10

Flights were on time with no delays, luggage arrived with the flight. I know the flights were short, but the only drinks offered were water, tea and coffee. It would’ve been nice to have the option to choose a soda, especially since I was in comfort class. The snacks were very small.

Delta
8.0
Very good
2,363 reviews
Delta
8.0
Very good
2,363 reviews

Crew

8.5

Entertainment

7.8

Food

7.2

Comfort

7.9

Overall

8.0

Boarding

8.1

Reviews

1 / 10

Flights were on time with no delays, luggage arrived with the flight. I know the flights were short, but the only drinks offered were water, tea and coffee. It would’ve been nice to have the option to choose a soda, especially since I was in comfort class. The snacks were very small.

Sun Country Air
7.4
Good
84 reviews
Delta
8.0
Very good
2,363 reviews

Crew

8.5

Entertainment

7.8

Food

7.2

Comfort

7.9

Overall

8.0

Boarding

8.1

Reviews

1 / 10

Flights were on time with no delays, luggage arrived with the flight. I know the flights were short, but the only drinks offered were water, tea and coffee. It would’ve been nice to have the option to choose a soda, especially since I was in comfort class. The snacks were very small.

American Airlines
7.4
Good
2,147 reviews
Delta
8.0
Very good
2,363 reviews

Crew

8.5

Entertainment

7.8

Food

7.2

Comfort

7.9

Overall

8.0

Boarding

8.1

Reviews

1 / 10

Flights were on time with no delays, luggage arrived with the flight. I know the flights were short, but the only drinks offered were water, tea and coffee. It would’ve been nice to have the option to choose a soda, especially since I was in comfort class. The snacks were very small.

Spirit Airlines
6.6
Okay
1,027 reviews
Delta
8.0
Very good
2,363 reviews

Crew

8.5

Entertainment

7.8

Food

7.2

Comfort

7.9

Overall

8.0

Boarding

8.1

Reviews

1 / 10

Flights were on time with no delays, luggage arrived with the flight. I know the flights were short, but the only drinks offered were water, tea and coffee. It would’ve been nice to have the option to choose a soda, especially since I was in comfort class. The snacks were very small.

Frontier
5.9
Fair
663 reviews
Delta
8.0
Very good
2,363 reviews

Crew

8.5

Entertainment

7.8

Food

7.2

Comfort

7.9

Overall

8.0

Boarding

8.1

Reviews

1 / 10

Flights were on time with no delays, luggage arrived with the flight. I know the flights were short, but the only drinks offered were water, tea and coffee. It would’ve been nice to have the option to choose a soda, especially since I was in comfort class. The snacks were very small.

Related info for your journey

Useful info, stats and facts about St. Louis to Baltimore flights.

Top 5 airlines flying from St. Louis to Baltimore

The chart below displays the airlines Cheapflights users traveling from St. Louis to Baltimore choose most often. Cheapest and average prices are based on aggregated data from the past 12 months.
AirlineCheapestAverageFlexibilityOn-timeCOVID-19 safety
Spirit AirlinesCheapest$105Average$188FlexibilityNo cancel feeOn-time65%COVID-19 safety
Search Spirit Airlines flights
FrontierCheapest$164Average$214FlexibilityNo cancel feeOn-time62%COVID-19 safety
Search Frontier flights
United AirlinesCheapest$202Average$388FlexibilityNo cancel feeOn-time69%COVID-19 safety
Search United Airlines flights
American AirlinesCheapest$242Average$382FlexibilityNo cancel feeOn-time71%COVID-19 safety
Search American Airlines flights
DeltaCheapest$264Average$393FlexibilityNo cancel feeOn-timeN/ACOVID-19 safety
Search Delta flights

Hourly flight availability from St. Louis to Baltimore

See what time of day planes typically take off from St. Louis to Baltimore
40%of flight departuresEarly morningMidnight to 6 am
0%of flight departuresMorning6 am to noon
40%of flight departuresAfternoonNoon to 6 pm
20%of flight departuresEvening6 pm to midnight
Midnight
6 AM
Noon
6 PM

Weekly flight availability from St. Louis to Baltimore

See how many times per day planes take to the skies headed from St. Louis to Baltimore
Sunday6daily flights
Monday7daily flights
Tuesday7daily flights
Wednesday7daily flights
Thursday7daily flights
Friday7daily flights
Saturday3daily flights
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