$58+ Cheap flights from St. Louis (STL) to Maryland
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 9/23. Fares are subject to change and may not be available on all flights or dates of travel.
STL — BWI
Sep 21 — Sep 281
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
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from St. Louis to Maryland
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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 August 22, 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 August 22, 2026.
This Kiwi.com deal was found by Cheapflights users on 8/21. 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 10/52:29 pm -
1 stop17h 56m
Wed 10/76:38 am -
1 stop7h 32m
Deal found 8/21![Frontier logo]()
$119
This Kiwi.com deal was found by Cheapflights users on 8/21. 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.
Wed 10/72:29 pm -
1 stop6h 29m
Mon 10/1210:22 am -
1 stop8h 18m
Deal found 8/21![Frontier logo]()
$127
This Kiwi.com deal was found by Cheapflights users on 8/21. 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 10/126:35 pm -
1 stop11h 46m
Tue 10/135:22 pm -
1 stop25h 18m
Deal found 8/21![Frontier logo]()
$130
This Kiwi.com deal was found by Cheapflights users on 8/17. 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.
Mon 9/142:29 pm -
1 stop17h 56m
Mon 9/216:00 am -
1 stop8h 10m
Deal found 8/17![Frontier logo]()
$130
This Kiwi.com deal was found by Cheapflights users on 8/19. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/266:35 pm -
1 stop14h 15m
Thu 10/299:12 pm -
1 stop21h 28m
Deal found 8/19![Frontier logo]()
$132
This Kiwi.com deal was found by Cheapflights users on 8/20. 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.
Mon 10/196:35 pm -
1 stop13h 52m
Wed 10/2110:22 am -
1 stop8h 18m
Deal found 8/20![Frontier logo]()
$133
This Kiwi.com deal was found by Cheapflights users on 8/21. 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.
Fri 10/96:35 pm -
1 stop11h 46m
Tue 10/135:22 pm -
1 stop25h 18m
Deal found 8/21![Frontier logo]()
$135
This Kiwi.com deal was found by Cheapflights users on 8/19. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/212:29 pm -
1 stop17h 56m
Wed 9/236:38 am -
1 stop7h 32m
Deal found 8/19![Frontier logo]()
$135
This Kiwi.com deal was found by Cheapflights users on 8/19. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/96:35 pm -
1 stop13h 52m
Mon 10/1210:22 am -
1 stop8h 18m
Deal found 8/19![Frontier logo]()
$137
This Kiwi.com deal was found by Cheapflights users on 8/18. 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.
Fri 10/22:29 pm -
1 stop17h 56m
Mon 10/56:00 am -
1 stop8h 10m
Deal found 8/18![Frontier logo]()
$138
This Kiwi.com deal was found by Cheapflights users on 8/19. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/266:35 pm -
1 stop11h 46m
Mon 11/212:35 pm -
1 stop6h 05m
Deal found 8/19![Frontier logo]()
$139
This Kiwi.com deal was found by Cheapflights users on 8/19. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/92:29 pm -
1 stop17h 56m
Mon 9/146:00 am -
1 stop8h 10m
Deal found 8/19![Frontier logo]()
$140
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 August 22, 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 August 22, 2026.
This Southwest deal was found by Cheapflights users on 8/18. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/175:40 pm -
1 stop3h 50m
Mon 9/215:05 pm -
1 stop6h 25m
Deal found 8/18![Southwest logo]()
$237
This Delta deal was found by Cheapflights users on 8/19. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/256:54 pm -
1 stop4h 47m
Mon 9/287:17 pm -
1 stop5h 25m
Deal found 8/19![Delta logo]()
$256
This United Airlines deal was found by Cheapflights users on 8/18. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/148:00 am -
Nonstop2h 10m
Thu 11/198:40 am -
Nonstop2h 32m
Deal found 8/18![United Airlines logo]()
$271
This CheapOair deal was found by Cheapflights users on 8/21. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/118:10 pm -
1 stop19h 49m
Sun 9/136:00 pm -
1 stop26h 17m
Deal found 8/21![Frontier logo]()
$298
This American Airlines deal was found by Cheapflights users on 8/20. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/512:45 pm -
1 stop6h 11m
Wed 9/98:45 am -
1 stop4h 40m
Deal found 8/20![American Airlines logo]()
$507
This Southwest deal was found by Cheapflights users on 8/17. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/165:50 pm -
1 stop4h 10m
Mon 10/197:55 am -
1 stop5h 20m
Deal found 8/17![Southwest logo]()
$256
This Southwest deal was found by Cheapflights users on 8/19. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/267:50 pm -
Nonstop2h 20m
Mon 11/27:25 pm -
Nonstop2h 35m
Deal found 8/19![Southwest logo]()
$257
This United Airlines deal was found by Cheapflights users on 8/18. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/118:40 am -
Nonstop2h 14m
Mon 9/145:15 pm -
1 stop5h 21m
Deal found 8/18![United Airlines logo]()
$287
This Delta deal was found by Cheapflights users on 8/20. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/305:35 pm -
1 stop6h 21m
Tue 11/36:00 am -
1 stop5h 51m
Deal found 8/20![Delta logo]()
$288
This Southwest deal was found by Cheapflights users on 8/19. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/276:40 pm -
Nonstop2h 05m
Wed 10/286:25 am -
Nonstop2h 20m
Deal found 8/19![Southwest logo]()
$257
This Southwest deal was found by Cheapflights users on 8/17. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/255:40 pm -
1 stop3h 50m
Tue 9/2911:40 am -
2 stops7h 15m
Deal found 8/17![Southwest logo]()
$261
This United Airlines deal was found by Cheapflights users on 8/21. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/158:00 am -
1 stop4h 59m
Mon 10/193:47 pm -
1 stop6h 34m
Deal found 8/21![United Airlines logo]()
$317
This Delta deal was found by Cheapflights users on 8/17. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/227:20 pm -
1 stop4h 22m
Sun 10/256:05 am -
1 stop4h 39m
Deal found 8/17![Delta logo]()
$324
This Southwest deal was found by Cheapflights users on 8/19. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/266:10 pm -
1 stop4h 20m
Thu 10/2911:40 am -
2 stops7h 25m
Deal found 8/19![Southwest logo]()
$261
This United Airlines deal was found by Cheapflights users on 8/19. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/261:00 pm -
Nonstop2h 09m
Thu 10/298:40 am -
Nonstop2h 32m
Deal found 8/19![United Airlines logo]()
$331
This Southwest deal was found by Cheapflights users on 8/21. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/104:55 pm -
Nonstop2h 05m
Mon 10/128:15 pm -
1 stop4h 20m
Deal found 8/21![Southwest logo]()
$267
This United Airlines deal was found by Cheapflights users on 8/17. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/216:00 am -
1 stop4h 49m
Wed 9/235:45 pm -
Nonstop2h 29m
Deal found 8/17![United Airlines logo]()
$333
This Southwest deal was found by Cheapflights users on 8/21. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/287:05 pm -
Nonstop2h 15m
Fri 10/27:40 pm -
Nonstop2h 20m
Deal found 8/21![Southwest logo]()
$268
This United Airlines deal was found by Cheapflights users on 8/20. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/308:30 am -
1 stop7h 39m
Mon 11/23:30 pm -
1 stop7h 05m
Deal found 8/20![United Airlines logo]()
$336
This Delta deal was found by Cheapflights users on 8/21. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/15:23 pm -
1 stop5h 25m
Sat 9/56:10 am -
1 stop4h 27m
Deal found 8/21![Delta logo]()
$439
This Southwest deal was found by Cheapflights users on 8/21. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/195:30 am -
1 stop6h 00m
Mon 11/236:00 am -
Nonstop2h 40m
Deal found 8/21![Southwest logo]()
$277
This United Airlines deal was found by Cheapflights users on 8/20. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/208:30 am -
Nonstop2h 16m
Tue 10/205:55 pm -
Nonstop2h 26m
Deal found 8/20![United Airlines logo]()
$338
This Southwest deal was found by Cheapflights users on 8/19. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/57:50 pm -
Nonstop2h 20m
Fri 10/95:10 pm -
1 stop6h 35m
Deal found 8/19![Southwest logo]()
$278
This American Airlines deal was found by Cheapflights users on 8/19. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/275:42 pm -
1 stop4h 16m
Sun 8/306:41 am -
1 stop5h 11m
Deal found 8/19![American Airlines logo]()
$666
This Southwest deal was found by Cheapflights users on 8/20. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/612:25 pm -
2 stops8h 05m
Fri 10/98:15 pm -
1 stop4h 20m
Deal found 8/20![Southwest logo]()
$293
This United Airlines deal was found by Cheapflights users on 8/17. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/46:00 am -
1 stop5h 08m
Mon 9/76:30 am -
1 stop4h 42m
Deal found 8/17![United Airlines logo]()
$416
This Southwest deal was found by Cheapflights users on 8/19. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/257:05 pm -
Nonstop2h 15m
Mon 9/286:35 pm -
Nonstop2h 25m
Deal found 8/19![Southwest logo]()
$302
This Southwest deal was found by Cheapflights users on 8/19. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/267:50 pm -
1 stop3h 55m
Thu 10/293:55 pm -
Nonstop2h 15m
Deal found 8/19![Southwest logo]()
$302
This Southwest deal was found by Cheapflights users on 8/19. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/256:05 am -
Nonstop2h 05m
Mon 9/286:30 am -
1 stop5h 00m
Deal found 8/19![Southwest logo]()
$311
This Southwest deal was found by Cheapflights users on 8/20. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/104:15 pm -
Nonstop2h 00m
Mon 9/145:45 pm -
1 stop5h 40m
Deal found 8/20![Southwest logo]()
$316
Last-minute flights from St. Louis to MarylandDiscover last-minute flight deals from St. Louis to Maryland. Data last updated August 22, 2026 and is based on user searches.
Discover last-minute flight deals from St. Louis to Maryland. Data last updated August 22, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 8/19. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/92:29 pm -
1 stop17h 56m
Mon 9/146:00 am -
1 stop8h 10m
Deal found 8/19![Frontier logo]()
$140
This Kiwi.com deal was found by Cheapflights users on 8/17. 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 9/92:29 pm -
1 stop6h 29m
Thu 9/249:25 pm -
1 stop16h 45m
Deal found 8/17![Frontier logo]()
$147
This Kiwi.com deal was found by Cheapflights users on 8/17. 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.
Fri 9/112:29 pm -
1 stop25h 17m
Mon 9/146:00 am -
1 stop8h 10m
Deal found 8/17![Frontier logo]()
$146
This Kiwi.com deal was found by Cheapflights users on 8/17. 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.
Mon 9/142:29 pm -
1 stop17h 56m
Mon 9/216:00 am -
1 stop8h 10m
Deal found 8/17![Frontier logo]()
$130
This Kiwi.com deal was found by Cheapflights users on 8/19. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/212:29 pm -
1 stop17h 56m
Wed 9/236:38 am -
1 stop7h 32m
Deal found 8/19![Frontier logo]()
$135
This Kiwi.com deal was found by Cheapflights users on 8/20. 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 9/232:29 pm -
1 stop6h 01m
Mon 9/286:00 am -
1 stop8h 10m
Deal found 8/20![Frontier logo]()
$144
This Kiwi.com deal was found by Cheapflights users on 8/20. 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 9/252:29 pm -
1 stop17h 56m
Mon 9/286:00 am -
1 stop8h 10m
Deal found 8/20![Frontier logo]()
$141
This Kiwi.com deal was found by Cheapflights users on 8/19. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/252:29 pm -
1 stop15h 47m
Mon 9/288:41 am -
1 stop5h 29m
Deal found 8/19![Frontier logo]()
$145
This Kiwi.com deal was found by Cheapflights users on 8/20. 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 9/252:29 pm -
1 stop17h 56m
Wed 9/306:38 am -
1 stop7h 32m
Deal found 8/20![Frontier logo]()
$148
This Kiwi.com deal was found by Cheapflights users on 8/20. 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.
Mon 9/282:29 pm -
1 stop7h 14m
Tue 9/299:25 pm -
1 stop16h 45m
Deal found 8/20![Frontier logo]()
$143
This Kiwi.com deal was found by Cheapflights users on 8/19. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/282:29 pm -
1 stop15h 47m
Tue 10/65:32 pm -
1 stop20h 38m
Deal found 8/19![Frontier logo]()
$146
This Kiwi.com deal was found by Cheapflights users on 8/18. 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.
Mon 9/282:29 pm -
1 stop15h 47m
Wed 9/308:41 am -
1 stop5h 29m
Deal found 8/18![Frontier logo]()
$147
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 August 22, 2026.
Search for one-way flight options from St. Louis to Maryland. Find affordable one-way fares based on user searches. Data last updated August 22, 2026.
This Kiwi.com deal was found by Cheapflights users on 8/21. 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.
Wed 9/232:29 pm -
1 stop6h 01m
Deal found 8/21![Frontier logo]()
$58
This Kiwi.com deal was found by Cheapflights users on 8/17. 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.
Mon 9/142:29 pm -
1 stop17h 56m
Deal found 8/17![Frontier logo]()
$61
This Kiwi.com deal was found by Cheapflights users on 8/17. 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.
Mon 10/196:35 pm -
1 stop28h 59m
Deal found 8/17![Frontier logo]()
$63
This Kiwi.com deal was found by Cheapflights users on 8/21. 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 9/212:29 pm -
1 stop25h 17m
Deal found 8/21![Frontier logo]()
$64
This Kiwi.com deal was found by Cheapflights users on 8/22. 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 9/232:29 pm -
1 stop7h 49m
Deal found 8/22![Frontier logo]()
$65
This Kiwi.com deal was found by Cheapflights users on 8/21. 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.
Wed 9/162:29 pm -
1 stop6h 29m
Deal found 8/21![Frontier logo]()
$65
This Kiwi.com deal was found by Cheapflights users on 8/19. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/212:29 pm -
1 stop15h 47m
Deal found 8/19![Frontier logo]()
$66
This Kiwi.com deal was found by Cheapflights users on 8/21. 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.
Wed 10/216:35 pm -
1 stop13h 52m
Deal found 8/21![Frontier logo]()
$66
This Kiwi.com deal was found by Cheapflights users on 8/21. 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.
Wed 9/162:29 pm -
1 stop25h 49m
Deal found 8/21![Frontier logo]()
$66
This Kiwi.com deal was found by Cheapflights users on 8/19. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/126:35 pm -
1 stop11h 46m
Deal found 8/19![Frontier logo]()
$67
This Kiwi.com deal was found by Cheapflights users on 8/19. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/510:35 am -
1 stop6h 01m
Deal found 8/19![Frontier logo]()
$69
This Kiwi.com deal was found by Cheapflights users on 8/18. 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.
Mon 10/196:35 pm -
1 stop11h 46m
Deal found 8/18![Frontier logo]()
$70
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 August 22, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $119 (Kiwi.com) |
One-way from | $58 (Kiwi.com) |
Popular in | May |
Cheapest in | October |
Average price | $365 |
Good round-trip deal | $326 or less |
Good one-way deal | $194 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 August 22, 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. LouisWashington, D.C.
STL Lambert-St Louis - DCA Washington, D.C. Reagan-National
STLDCA
Lambert-St Louis
Thu 9/17
5:40 pm-10:30 pm
1 stop3h 50m
Washington, D.C. Reagan-National
Mon 9/21
5:05 pm-10:30 pm
1 stop6h 25m
$237
St. LouisWashington, D.C.
STL Lambert-St Louis - IAD Washington, D.C. Dulles Intl
STLIAD
Lambert-St Louis
Fri 9/25
6:54 pm-12:41 am
1 stop4h 47m
Washington, D.C. Dulles Intl
Mon 9/28
7:17 pm-11:42 pm
1 stop5h 25m
$256
St. LouisWashington, D.C.
STL Lambert-St Louis - DCA Washington, D.C. Reagan-National
STLDCA
Lambert-St Louis
Fri 10/16
5:50 pm-11:00 pm
1 stop4h 10m
Washington, D.C. Reagan-National
Mon 10/19
7:55 am-12:15 pm
1 stop5h 20m
$256
St. LouisPhiladelphia
STL Lambert-St Louis - PHL Philadelphia
STLPHL
Lambert-St Louis
Mon 10/26
7:50 pm-11:10 pm
Nonstop2h 20m
Philadelphia
Mon 11/2
7:25 pm-9:00 pm
Nonstop2h 35m
$257
Quickest round-trip
St. LouisPhiladelphia
STL Lambert-St Louis - PHL Philadelphia
STLPHL
Lambert-St Louis
Tue 10/27
6:40 pm-9:45 pm
Nonstop2h 05m
Philadelphia
Wed 10/28
6:25 am-7:45 am
Nonstop2h 20m
$257
St. LouisWashington, D.C.
STL Lambert-St Louis - DCA Washington, D.C. Reagan-National
STLDCA
Lambert-St Louis
Fri 9/25
5:40 pm-10:30 pm
1 stop3h 50m
Washington, D.C. Reagan-National
Tue 9/29
11:40 am-5:55 pm
2 stops7h 15m
$261
St. LouisWashington, D.C.
STL Lambert-St Louis - DCA Washington, D.C. Reagan-National
STLDCA
Lambert-St Louis
Mon 10/26
6:10 pm-11:30 pm
1 stop4h 20m
Washington, D.C. Reagan-National
Thu 10/29
11:40 am-6:05 pm
2 stops7h 25m
$261
St. LouisPhiladelphia
STL Lambert-St Louis - PHL Philadelphia
STLPHL
Lambert-St Louis
Sat 10/10
4:55 pm-8:00 pm
Nonstop2h 05m
Philadelphia
Mon 10/12
8:15 pm-11:35 pm
1 stop4h 20m
$267
St. LouisPhiladelphia
STL Lambert-St Louis - PHL Philadelphia
STLPHL
Lambert-St Louis
Mon 9/28
7:05 pm-10:20 pm
Nonstop2h 15m
Philadelphia
Fri 10/2
7:40 pm-9:00 pm
Nonstop2h 20m
$268
St. LouisWashington, D.C.
STL Lambert-St Louis - IAD Washington, D.C. Dulles Intl
STLIAD
Lambert-St Louis
Sat 11/14
8:00 am-11:10 am
Nonstop2h 10m
Washington, D.C. Dulles Intl
Thu 11/19
8:40 am-10:12 am
Nonstop2h 32m
$271
Showing 1-10 of 60 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-PHL
STL-IAD
STL-DCA
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-PHL
STL-IAD
STL-DCA
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 August 22, 2026.
Unlike in the evening, when flights are generally more expensive, you can save up to 11% on flights from St. Louis to Maryland by exploring options for tickets in the morning.
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 $296 and $424 in October.The cheapest round-trip price found within the last 5 days was $119 on Frontier (Oct 5-Oct 7).
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 12 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 August 22, 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 August 22, 2026.
Get a feel of what it's like to fly with Southwest,Delta, andAmerican Airlines 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.
Comfort
8.0
Food
7.0
Boarding
8.1
Crew
8.6
Overall
8.0
Entertainment
7.5
Reviews
1 / 20
2.0
MediocreBhoopal,Nov 2024
STL - BOS
Comfort
8.0
Food
7.0
Boarding
8.1
Crew
8.6
Overall
8.0
Entertainment
7.5
Reviews
1 / 20
2.0
MediocreBhoopal,Nov 2024
STL - BOS
Comfort
8.0
Food
7.0
Boarding
8.1
Crew
8.6
Overall
8.0
Entertainment
7.5
Reviews
1 / 20
2.0
MediocreBhoopal,Nov 2024
STL - BOS
Comfort
8.0
Food
7.0
Boarding
8.1
Crew
8.6
Overall
8.0
Entertainment
7.5
Reviews
1 / 20
2.0
MediocreBhoopal,Nov 2024
STL - BOS
Comfort
8.0
Food
7.0
Boarding
8.1
Crew
8.6
Overall
8.0
Entertainment
7.5
Reviews
1 / 20
2.0
MediocreBhoopal,Nov 2024
STL - BOS
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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Complete your trip
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St. Louis and Maryland flights
Browse other St. Louis and Maryland flight options. Last updated on August 22, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
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 August 22, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$147 | Average$233 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$281 | Average$412 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$296 | Average$442 | FlexibilityNo cancel fee | On-time63% |