$52+ Cheap flights from St. Louis (STL) to Maryland
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/9. Fares are subject to change and may not be available on all flights or dates of travel.
STL — BWI
Nov 11 — Nov 181
Round-trip
1 adult, Economy
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Find cheap flights from St. Louis to Maryland with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
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Cheapest flights from St. Louis to MarylandExplore the most affordable flight options available from St. Louis to Maryland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 12, 2026.
Explore the most affordable flight options available from St. Louis to Maryland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 12, 2026.
This Kiwi.com deal was found by Cheapflights users on 10/10. 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 11/96:34 pm -
1 stop14h 12m
Tue 12/16:50 pm -
1 stop17h 27m
Deal found 10/10![Frontier logo]()
$102
This Kiwi.com deal was found by Cheapflights users on 10/12. 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 11/116:34 pm -
1 stop4h 59m
Wed 11/1810:41 am -
1 stop8h 01m
Deal found 10/12![Frontier logo]()
$116
This Kiwi.com deal was found by Cheapflights users on 10/12. 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.
Thu 11/197:24 pm -
1 stop28h 18m
Tue 12/16:50 pm -
1 stop17h 27m
Deal found 10/12![Frontier logo]()
$123
This Mytrip deal was found by Cheapflights users on 10/9. 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.
Mon 11/26:44 pm -
1 stop14h 06m
Wed 11/45:40 am -
1 stop13h 00m
Deal found 10/9![Frontier logo]()
$124
This Cheapflightsfares deal was found by Cheapflights users on 10/10. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/136:34 pm -
1 stop4h 59m
Wed 11/1810:41 am -
1 stop8h 01m
Deal found 10/10![Frontier logo]()
$141
This deal was found by Cheapflights users on 10/12. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/236:35 pm -
1 stop5h 07m
Wed 12/96:00 am -
1 stop6h 17m
Deal found 10/12![Frontier logo]()
$142
This Kiwi.com deal was found by Cheapflights users on 10/11. 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 12/412:02 pm -
1 stop9h 21m
Sun 12/61:54 pm -
1 stop22h 23m
Deal found 10/11![Frontier logo]()
$144
This deal was found by Cheapflights users on 10/12. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/236:35 pm -
1 stop5h 07m
Mon 12/76:00 am -
1 stop6h 17m
Deal found 10/12![Frontier logo]()
$153
This Kiwi.com deal was found by Cheapflights users on 10/10. 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.
Tue 11/246:05 pm -
1 stop5h 38m
Tue 12/16:50 pm -
1 stop17h 27m
Deal found 10/10![Frontier logo]()
$162
This American Airlines deal was found by Cheapflights users on 10/9. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/245:40 pm -
1 stop4h 10m
Wed 10/288:30 am -
1 stop7h 08m
Deal found 10/9![American Airlines logo]()
$562
This American Airlines deal was found by Cheapflights users on 10/8. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/2312:54 pm -
1 stop6h 49m
Fri 11/277:33 am -
1 stop5h 41m
Deal found 10/8![American Airlines logo]()
$588
This American Airlines deal was found by Cheapflights users on 10/8. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/245:00 am -
1 stop5h 08m
Sat 11/284:27 pm -
1 stop7h 09m
Deal found 10/8![American Airlines logo]()
$659
Best flights from St. Louis to MarylandDiscover carefully curated flight deals from St. Louis to Maryland that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 12, 2026.
Discover carefully curated flight deals from St. Louis to Maryland that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 12, 2026.
This Cheapflightsfares deal was found by Cheapflights users on 10/7. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/136:34 pm -
1 stop4h 59m
Wed 11/1810:41 am -
1 stop8h 01m
Deal found 10/7![Frontier logo]()
$175
This Southwest deal was found by Cheapflights users on 10/11. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/146:25 am -
Nonstop1h 55m
Tue 11/176:15 am -
Nonstop2h 25m
Deal found 10/11![Southwest logo]()
$337
This Delta deal was found by Cheapflights users on 10/11. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/145:30 pm -
1 stop6h 28m
Mon 11/166:29 pm -
1 stop6h 27m
Deal found 10/11![Delta logo]()
$347
This American Airlines deal was found by Cheapflights users on 10/9. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/245:40 pm -
1 stop4h 10m
Wed 10/288:30 am -
1 stop7h 08m
Deal found 10/9![American Airlines logo]()
$562
This Southwest deal was found by Cheapflights users on 10/7. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/138:25 pm -
Nonstop2h 00m
Wed 11/188:50 pm -
Nonstop2h 25m
Deal found 10/7![Southwest logo]()
$339
This Southwest deal was found by Cheapflights users on 10/10. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/114:40 pm -
1 stop3h 55m
Mon 12/146:15 am -
Nonstop2h 25m
Deal found 10/10![Southwest logo]()
$343
This Southwest deal was found by Cheapflights users on 10/10. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/245:35 am -
Nonstop2h 00m
Tue 12/14:50 pm -
1 stop3h 35m
Deal found 10/10![Southwest logo]()
$343
This Southwest deal was found by Cheapflights users on 10/11. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/2210:10 am -
1 stop3h 20m
Wed 12/2310:35 pm -
Nonstop2h 20m
Deal found 10/11![Southwest logo]()
$343
This Southwest deal was found by Cheapflights users on 10/10. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/266:40 am -
Nonstop1h 55m
Thu 11/261:30 pm -
1 stop4h 25m
Deal found 10/10![Southwest logo]()
$347
This American Airlines deal was found by Cheapflights users on 10/12. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/2312:54 pm -
1 stop6h 49m
Fri 11/2711:34 am -
1 stop5h 21m
Deal found 10/12![American Airlines logo]()
$588
This Southwest deal was found by Cheapflights users on 10/12. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/184:25 pm -
1 stop3h 55m
Sun 12/2010:35 pm -
Nonstop2h 20m
Deal found 10/12![Southwest logo]()
$367
This Southwest deal was found by Cheapflights users on 10/10. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/275:35 am -
Nonstop2h 00m
Wed 12/3010:35 pm -
Nonstop2h 20m
Deal found 10/10![Southwest logo]()
$378
This American Airlines deal was found by Cheapflights users on 10/12. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/245:00 am -
1 stop5h 08m
Sat 11/284:27 pm -
1 stop7h 09m
Deal found 10/12![American Airlines logo]()
$659
Last-minute flights from St. Louis to MarylandDiscover last-minute flight deals from St. Louis to Maryland. Data last updated October 12, 2026 and is based on user searches.
Discover last-minute flight deals from St. Louis to Maryland. Data last updated October 12, 2026 and is based on user searches.
This American Airlines deal was found by Cheapflights users on 10/9. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/245:40 pm -
1 stop4h 10m
Wed 10/288:30 am -
1 stop7h 08m
Deal found 10/9![American Airlines logo]()
$562
This Frontier deal was found by Cheapflights users on 10/8. 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.
Fri 10/306:44 pm -
1 stop4h 49m
Mon 11/210:04 am -
1 stop8h 36m
Deal found 10/8![Frontier logo]()
$171
This Mytrip deal was found by Cheapflights users on 10/9. 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.
Mon 11/26:44 pm -
1 stop14h 06m
Wed 11/45:40 am -
1 stop13h 00m
Deal found 10/9![Frontier logo]()
$124
This Kiwi.com deal was found by Cheapflights users on 10/10. 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 11/96:34 pm -
1 stop14h 12m
Tue 12/16:50 pm -
1 stop17h 27m
Deal found 10/10![Frontier logo]()
$102
This Kiwi.com deal was found by Cheapflights users on 10/12. 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 11/116:34 pm -
1 stop4h 59m
Wed 11/1810:41 am -
1 stop8h 01m
Deal found 10/12![Frontier logo]()
$116
This Cheapflightsfares deal was found by Cheapflights users on 10/10. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/136:34 pm -
1 stop4h 59m
Wed 11/1810:41 am -
1 stop8h 01m
Deal found 10/10![Frontier logo]()
$141
This Kiwi.com deal was found by Cheapflights users on 10/12. 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.
Thu 11/197:24 pm -
1 stop28h 18m
Tue 12/16:50 pm -
1 stop17h 27m
Deal found 10/12![Frontier logo]()
$123
This deal was found by Cheapflights users on 10/12. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/236:35 pm -
1 stop5h 07m
Wed 12/96:00 am -
1 stop6h 17m
Deal found 10/12![Frontier logo]()
$142
This deal was found by Cheapflights users on 10/12. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/236:35 pm -
1 stop5h 07m
Mon 12/76:00 am -
1 stop6h 17m
Deal found 10/12![Frontier logo]()
$153
This American Airlines deal was found by Cheapflights users on 10/8. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/2312:54 pm -
1 stop6h 49m
Fri 11/277:33 am -
1 stop5h 41m
Deal found 10/8![American Airlines logo]()
$588
This Kiwi.com deal was found by Cheapflights users on 10/10. 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.
Tue 11/246:05 pm -
1 stop5h 38m
Tue 12/16:50 pm -
1 stop17h 27m
Deal found 10/10![Frontier logo]()
$162
This American Airlines deal was found by Cheapflights users on 10/8. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/245:00 am -
1 stop5h 08m
Sat 11/284:27 pm -
1 stop7h 09m
Deal found 10/8![American Airlines logo]()
$659
One-way flights from St. Louis to MarylandSearch for one-way flight options from St. Louis to Maryland. Find affordable one-way fares based on user searches. Data last updated October 12, 2026.
Search for one-way flight options from St. Louis to Maryland. Find affordable one-way fares based on user searches. Data last updated October 12, 2026.
This Kiwi.com deal was found by Cheapflights users on 10/10. 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 12/912:02 pm -
1 stop4h 53m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/10![Frontier logo]()
$52
This Kiwi.com deal was found by Cheapflights users on 10/10. 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 11/96:34 pm -
1 stop20h 40m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/10![Frontier logo]()
$53
This Kiwi.com deal was found by Cheapflights users on 10/10. 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 11/136:34 pm -
1 stop20h 40m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/10![Frontier logo]()
$59
This Kiwi.com deal was found by Cheapflights users on 10/12. 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 11/116:34 pm -
1 stop4h 59m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/12![Frontier logo]()
$61
This Kiwi.com deal was found by Cheapflights users on 10/11. 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 11/236:35 pm -
1 stop5h 07m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/11![Frontier logo]()
$70
This Frontier deal was found by Cheapflights users on 10/8. 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.
Fri 11/66:34 pm -
1 stop4h 59m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/8![Frontier logo]()
$77
This Kiwi.com deal was found by Cheapflights users on 10/10. 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 12/1412:02 pm -
1 stop19h 38m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/10![Frontier logo]()
$82
This Kiwi.com deal was found by Cheapflights users on 10/8. 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 12/412:02 pm -
1 stop9h 21m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/8![Frontier logo]()
$93
This Kiwi.com deal was found by Cheapflights users on 10/9. 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.
Thu 10/294:26 pm -
1 stop26h 29m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/9![Multiple Airlines logo]()
$199
This Kiwi.com deal was found by Cheapflights users on 10/9. 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 10/247:42 pm -
3 stops47h 13m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/9![Multiple Airlines logo]()
$396
This American Airlines deal was found by Cheapflights users on 10/9. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/245:40 pm -
1 stop4h 10m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/9![American Airlines logo]()
$450
This American Airlines deal was found by Cheapflights users on 10/9. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/2911:32 am -
2 stops10h 18m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/9![American Airlines logo]()
$808
Find flight deals from St. Louis to Maryland
Keep the following information in mind while searching for St. Louis to Maryland flight deals. Data was last updated October 12, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $102 (Kiwi.com) |
One-way from | $52 (Kiwi.com) |
Popular in | May |
Cheapest in | October |
Average price | $303 |
Good round-trip deal | $378 or less |
Good one-way deal | $274 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from St. Louis to Maryland 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 7,457,451 searches. Data last updated October 12, 2026.
Use the filters below to find and compare flights from St. Louis to Maryland that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
St. LouisBaltimore
STL Lambert-St Louis - BWI Baltimore/Washington
STLBWI
Lambert-St Louis
Sat 11/7
8:30 am-2:06 pm
1 stop4h 36m
Baltimore/Washington
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$115
St. LouisBaltimore
STL Lambert-St Louis - BWI Baltimore/Washington
STLBWI
Lambert-St Louis
Wed 11/25
8:45 pm-11:45 pm
Nonstop2h 00m
Baltimore/Washington
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$135
St. LouisBaltimore
STL Lambert-St Louis - BWI Baltimore/Washington
STLBWI
Lambert-St Louis
Tue 11/10
6:00 am-12:54 pm
1 stop5h 54m
Baltimore/Washington
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$138
St. LouisBaltimore
STL Lambert-St Louis - BWI Baltimore/Washington
STLBWI
Lambert-St Louis
Tue 1/5
5:45 pm-10:55 pm
1 stop4h 10m
Baltimore/Washington
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$138
St. LouisBaltimore
STL Lambert-St Louis - BWI Baltimore/Washington
STLBWI
Lambert-St Louis
Tue 1/12
6:30 am-11:46 pm
1 stop16h 16m
Baltimore/Washington
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$156
St. LouisBaltimore
STL Lambert-St Louis - BWI Baltimore/Washington
STLBWI
Lambert-St Louis
Thu 1/14
6:30 am-11:46 pm
1 stop16h 16m
Baltimore/Washington
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$156
St. LouisBaltimore
STL Lambert-St Louis - BWI Baltimore/Washington
STLBWI
Lambert-St Louis
Wed 1/13
6:30 am-11:46 pm
1 stop16h 16m
Baltimore/Washington
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$156
Quickest round-trip
St. LouisBaltimore
STL Lambert-St Louis - BWI Baltimore/Washington
STLBWI
Lambert-St Louis
Sat 11/7
10:35 am-1:30 pm
Nonstop1h 55m
Baltimore/Washington
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$157
St. LouisBaltimore
STL Lambert-St Louis - BWI Baltimore/Washington
STLBWI
Lambert-St Louis
Wed 11/11
6:15 pm-9:20 pm
Nonstop2h 05m
Baltimore/Washington
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$169
St. LouisBaltimore
STL Lambert-St Louis - BWI Baltimore/Washington
STLBWI
Lambert-St Louis
Mon 11/9
5:10 pm-8:05 pm
Nonstop1h 55m
Baltimore/Washington
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$169
Showing 1-10 of 27 resultsSorted by cheapest first
Best time to book a flight from St. Louis to Maryland
Have a flexible travel schedule? Discover the best time to fly to Maryland from St. Louis with our price prediction graph.
STL-BWI
STL-SBY
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 St. Louis to Maryland
STL-USMD
STL-BWI
STL-SBY
What is the cheapest month to book a flight from St. Louis to Maryland?
Currently, April is the cheapest month in which you can book a flight from St. Louis to Maryland (average of $370). Flying from St. Louis to Maryland in February is currently the most expensive (average of $493). 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 STL to MD?
Find hourly flight availability from St. Louis to Maryland. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated October 12, 2026.
Unlike in the evening, when flights are generally more expensive, you can save up to 13% on flights from St. Louis to Maryland by exploring options for tickets at noon.
How much does it cost to fly round-trip from St. Louis to Maryland?
Airfare is below average for this route at the moment.
St. Louis to Maryland flights typically cost between $377 and $512 in November.The cheapest round-trip price found within the last 5 days was $102 on Frontier (Nov 9-Dec 1).
How far ahead should I book a flight from St. Louis to Maryland?
The price you pay for your flight from St. Louis to Maryland may vary depending on when you book. For the best chance of a lower fare, look to book 52 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.
What is the cheapest day to fly from St. Louis to Maryland?
Use this chart to determine the cheapest time to fly round-trip from St. Louis to Maryland. Price data was last updated on October 10, 2026.
Travelers seeking maximum savings on their St. Louis to Maryland 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.
Reviews of airlines servicing Maryland
Get insights into the airlines that provide service to Maryland. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Maryland. Reviews last updated October 12, 2026.
Get a feel of what it's like to fly with Southwest,American Airlines, andFrontier from St. Louis to Maryland by reading reviews from past customers. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Food
7.0
Entertainment
7.5
Crew
8.6
Overall
7.9
Boarding
8.1
Comfort
8.0
Reviews
1 / 20
10.0
ExcellentEdward,Sep 2026
MCO - BWI
Food
7.0
Entertainment
7.5
Crew
8.6
Overall
7.9
Boarding
8.1
Comfort
8.0
Reviews
1 / 20
10.0
ExcellentEdward,Sep 2026
MCO - BWI
Food
7.0
Entertainment
7.5
Crew
8.6
Overall
7.9
Boarding
8.1
Comfort
8.0
Reviews
1 / 20
10.0
ExcellentEdward,Sep 2026
MCO - BWI
Food
7.0
Entertainment
7.5
Crew
8.6
Overall
7.9
Boarding
8.1
Comfort
8.0
Reviews
1 / 20
10.0
ExcellentEdward,Sep 2026
MCO - BWI
Related info for your journey
Find useful and relevant information for your journey from St. Louis to Maryland. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Alternative routes for St. Louis to Maryland
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Maryland by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from St. Louis to Maryland by cabin class
Find flights from St. Louis to Maryland, based on your preferred cabin class, be it economy, premium economy, business, or first class.
St. Louis and Maryland flights
Browse other St. Louis and Maryland flight options. Last updated on October 12, 2026.
Popular flight searches
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Top 3 airlines flying from St. Louis to Maryland
Discover the top 3 airlines that operate flights from St. Louis to Maryland. 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 7,457,451 searches. Data last updated October 12, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$147 | Average$269 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$315 | Average$450 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$319 | Average$450 | FlexibilityNo cancel fee | On-time71% |