$48+ Cheap flights from Maryland to St. Louis (STL)
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 10/27. Fares are subject to change and may not be available on all flights or dates of travel.
BWI — STL
Nov 4 — Nov 111
Round-trip
1 adult, Economy
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Find cheap flights from Maryland to St. Louis 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 Maryland to St. LouisExplore the most affordable flight options available from Maryland to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 5, 2026.
Explore the most affordable flight options available from Maryland to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 5, 2026.
This Kiwi.com deal was found by Cheapflights users on 9/30. 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 10/285:40 am -
1 stop13h 00m
Wed 11/46:44 pm -
1 stop13h 18m
Deal found 9/30![Frontier logo]()
$106
This Kiwi.com deal was found by Cheapflights users on 9/30. 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 10/229:12 pm -
1 stop21h 28m
Mon 10/266:35 pm -
1 stop4h 59m
Deal found 9/30![Frontier logo]()
$113
This Kiwi.com deal was found by Cheapflights users on 9/30. 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 10/285:40 am -
1 stop13h 00m
Fri 10/306:44 pm -
1 stop4h 49m
Deal found 9/30![Frontier logo]()
$115
This Kiwi.com deal was found by Cheapflights users on 10/3. 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 11/410:45 am -
1 stop7h 55m
Mon 11/96:34 pm -
1 stop14h 12m
Deal found 10/3![Frontier logo]()
$123
This Kiwi.com deal was found by Cheapflights users on 10/3. 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 11/410:45 am -
1 stop7h 55m
Fri 11/66:34 pm -
1 stop4h 59m
Deal found 10/3![Frontier logo]()
$129
This CheapOair deal was found by Cheapflights users on 9/30. 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.
Tue 10/209:12 pm -
1 stop21h 28m
Fri 10/236:35 pm -
1 stop4h 59m
Deal found 9/30![Frontier logo]()
$131
This Kiwi.com deal was found by Cheapflights users on 9/30. 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 12/46:00 am -
1 stop6h 17m
Wed 12/912:02 pm -
1 stop4h 53m
Deal found 9/30![Frontier logo]()
$133
This Kiwi.com deal was found by Cheapflights users on 9/30. 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 12/36:50 pm -
1 stop17h 27m
Wed 12/912:02 pm -
1 stop4h 53m
Deal found 9/30![Frontier logo]()
$134
This American Airlines deal was found by Cheapflights users on 9/30. 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.
Wed 10/76:41 am -
1 stop5h 00m
Sat 10/105:40 pm -
1 stop4h 10m
Deal found 9/30![American Airlines logo]()
$562
This American Airlines deal was found by Cheapflights users on 10/4. 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.
Wed 10/217:41 am -
1 stop5h 28m
Thu 10/225:00 am -
1 stop5h 02m
Deal found 10/4![American Airlines logo]()
$970
This American Airlines deal was found by Cheapflights users on 10/4. 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 10/196:41 am -
1 stop5h 00m
Fri 10/2312:49 pm -
1 stop6h 52m
Deal found 10/4![American Airlines logo]()
$1,040
Best flights from Maryland to St. LouisDiscover carefully curated flight deals from Maryland to St. Louis that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 5, 2026.
Discover carefully curated flight deals from Maryland to St. Louis that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 5, 2026.
This Southwest deal was found by Cheapflights users on 10/3. 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.
Wed 12/235:00 pm -
1 stop5h 00m
Tue 12/298:25 am -
1 stop5h 15m
Deal found 10/3![Southwest logo]()
$315
This Southwest deal was found by Cheapflights users on 10/3. 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 10/318:15 am -
1 stop6h 30m
Sat 11/710:40 am -
1 stop6h 15m
Deal found 10/3![Southwest logo]()
$315
This American Airlines deal was found by Cheapflights users on 10/4. 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 3/1811:50 am -
1 stop4h 43m
Sun 3/214:25 pm -
1 stop4h 36m
Deal found 10/4![American Airlines logo]()
$637
This Southwest deal was found by Cheapflights users on 10/1. 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 10/2910:00 pm -
Nonstop2h 20m
Thu 11/55:00 am -
1 stop5h 45m
Deal found 10/1![Southwest logo]()
$316
This Southwest deal was found by Cheapflights users on 10/3. 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 11/174:50 pm -
1 stop3h 35m
Sat 11/215:20 am -
Nonstop1h 55m
Deal found 10/3![Southwest logo]()
$326
This Southwest deal was found by Cheapflights users on 10/2. 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.
Wed 11/256:20 am -
Nonstop2h 25m
Sat 12/52:25 pm -
1 stop3h 50m
Deal found 10/2![Southwest logo]()
$351
This Southwest deal was found by Cheapflights users on 9/30. 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 12/14:45 pm -
Nonstop2h 20m
Mon 12/76:35 am -
Nonstop1h 55m
Deal found 9/30![Southwest logo]()
$357
This Southwest deal was found by Cheapflights users on 10/2. 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 10/277:30 am -
1 stop3h 50m
Thu 10/295:40 pm -
Nonstop2h 00m
Deal found 10/2![Southwest logo]()
$367
This Southwest deal was found by Cheapflights users on 10/1. 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.
Wed 10/2810:20 am -
Nonstop2h 15m
Fri 10/306:45 am -
Nonstop2h 00m
Deal found 10/1![Southwest logo]()
$371
This Southwest deal was found by Cheapflights users on 10/3. 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 11/56:40 am -
Nonstop2h 30m
Mon 11/96:40 am -
Nonstop1h 55m
Deal found 10/3![Southwest logo]()
$387
This Southwest deal was found by Cheapflights users on 9/30. 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 10/2210:00 pm -
Nonstop2h 20m
Sun 10/255:40 am -
Nonstop2h 05m
Deal found 9/30![Southwest logo]()
$392
This Southwest deal was found by Cheapflights users on 9/30. 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 11/56:00 pm -
1 stop4h 00m
Sun 11/88:25 pm -
Nonstop2h 00m
Deal found 9/30![Southwest logo]()
$398
This American Airlines deal was found by Cheapflights users on 10/4. 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.
Wed 10/217:41 am -
1 stop5h 28m
Thu 10/225:00 am -
1 stop5h 02m
Deal found 10/4![American Airlines logo]()
$970
This Southwest deal was found by Cheapflights users on 10/2. 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.
Wed 12/235:00 pm -
1 stop5h 00m
Mon 12/2810:10 am -
1 stop3h 20m
Deal found 10/2![Southwest logo]()
$414
Last-minute flights from Maryland to St. LouisDiscover last-minute flight deals from Maryland to St. Louis. Data last updated October 5, 2026 and is based on user searches.
Discover last-minute flight deals from Maryland to St. Louis. Data last updated October 5, 2026 and is based on user searches.
This American Airlines deal was found by Cheapflights users on 9/30. 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.
Wed 10/76:41 am -
1 stop5h 00m
Sat 10/105:40 pm -
1 stop4h 10m
Deal found 9/30![American Airlines logo]()
$562
This American Airlines deal was found by Cheapflights users on 10/4. 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 10/196:41 am -
1 stop5h 00m
Fri 10/2312:49 pm -
1 stop6h 52m
Deal found 10/4![American Airlines logo]()
$1,040
This CheapOair deal was found by Cheapflights users on 9/30. 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.
Tue 10/209:12 pm -
1 stop21h 28m
Fri 10/236:35 pm -
1 stop4h 59m
Deal found 9/30![Frontier logo]()
$131
This American Airlines deal was found by Cheapflights users on 10/4. 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.
Wed 10/217:41 am -
1 stop5h 28m
Thu 10/225:00 am -
1 stop5h 02m
Deal found 10/4![American Airlines logo]()
$970
This Kiwi.com deal was found by Cheapflights users on 9/30. 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 10/229:12 pm -
1 stop21h 28m
Mon 10/266:35 pm -
1 stop4h 59m
Deal found 9/30![Frontier logo]()
$113
This Kiwi.com deal was found by Cheapflights users on 9/30. 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 10/285:40 am -
1 stop13h 00m
Wed 11/46:44 pm -
1 stop13h 18m
Deal found 9/30![Frontier logo]()
$106
This Kiwi.com deal was found by Cheapflights users on 9/30. 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 10/285:40 am -
1 stop13h 00m
Fri 10/306:44 pm -
1 stop4h 49m
Deal found 9/30![Frontier logo]()
$115
This Kiwi.com deal was found by Cheapflights users on 10/3. 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 11/410:45 am -
1 stop7h 55m
Mon 11/96:34 pm -
1 stop14h 12m
Deal found 10/3![Frontier logo]()
$123
This Kiwi.com deal was found by Cheapflights users on 10/3. 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 11/410:45 am -
1 stop7h 55m
Fri 11/66:34 pm -
1 stop4h 59m
Deal found 10/3![Frontier logo]()
$129
This Frontier deal was found by Cheapflights users on 10/3. 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 11/910:00 am -
1 stop8h 42m
Wed 11/116:34 pm -
1 stop4h 59m
Deal found 10/3![Frontier logo]()
$138
This Kiwi.com deal was found by Cheapflights users on 10/4. 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 11/128:41 pm -
1 stop22h 01m
Mon 11/166:34 pm -
1 stop14h 12m
Deal found 10/4![Frontier logo]()
$140
One-way flights from Maryland to St. LouisSearch for one-way flight options from Maryland to St. Louis. Find affordable one-way fares based on user searches. Data last updated October 5, 2026.
Search for one-way flight options from Maryland to St. Louis. Find affordable one-way fares based on user searches. Data last updated October 5, 2026.
This Kiwi.com deal was found by Cheapflights users on 9/30. 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 10/278:17 pm -
1 stop22h 23m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/30![Frontier logo]()
$48
This Kiwi.com deal was found by Cheapflights users on 10/1. 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 12/16:50 pm -
1 stop17h 27m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/1![Frontier logo]()
$60
This Kiwi.com deal was found by Cheapflights users on 10/3. 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 11/45:40 am -
1 stop13h 00m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/3![Frontier logo]()
$62
This Kiwi.com deal was found by Cheapflights users on 10/1. 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 11/38:41 pm -
1 stop21h 59m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/1![Frontier logo]()
$63
This Cheapflightsfares deal was found by Cheapflights users on 10/1. 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.
Wed 10/2810:45 am -
1 stop7h 55m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/1![Frontier logo]()
$64
This Kiwi.com deal was found by Cheapflights users on 10/1. 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 11/210:04 am -
1 stop8h 36m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/1![Frontier logo]()
$65
This Frontier deal was found by Cheapflights users on 10/4. 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.
Wed 12/26:00 am -
1 stop6h 17m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/4![Frontier logo]()
$66
This Frontier deal was found by Cheapflights users on 9/30. 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 11/276:15 am -
1 stop12h 25m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/30![Frontier logo]()
$71
This Kiwi.com deal was found by Cheapflights users on 10/3. 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 11/108:41 pm -
1 stop22h 01m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/3![Frontier logo]()
$72
This Frontier deal was found by Cheapflights users on 10/4. 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 12/46:00 am -
1 stop6h 17m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/4![Frontier logo]()
$73
This Kiwi.com deal was found by Cheapflights users on 9/30. 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 11/278:38 pm -
1 stop28h 21m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/30![Multiple Airlines logo]()
$334
This American Airlines deal was found by Cheapflights users on 10/2. 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.
Fri 11/277:33 am -
1 stop5h 41m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/2![American Airlines logo]()
$520
Find flight deals from Maryland to St. Louis
Keep the following information in mind while searching for Maryland to St. Louis flight deals. Data was last updated October 5, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $106 (Kiwi.com) |
One-way from | $48 (Kiwi.com) |
Popular in | July |
Cheapest in | November |
Average price | $341 |
Good round-trip deal | $402 or less |
Good one-way deal | $243 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from Maryland to St. Louis 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 5, 2026.
Use the filters below to find and compare flights from Maryland to St. Louis that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
BaltimoreSt. Louis
BWI Baltimore/Washington - STL Lambert-St Louis
BWISTL
Baltimore/Washington
Sat 12/5
11:03 am-4:24 pm
1 stop6h 21m
Lambert-St Louis
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$138
BaltimoreSt. Louis
BWI Baltimore/Washington - STL Lambert-St Louis
BWISTL
Baltimore/Washington
Sat 11/21
7:08 am-11:15 am
1 stop5h 07m
Lambert-St Louis
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$138
BaltimoreSt. Louis
BWI Baltimore/Washington - STL Lambert-St Louis
BWISTL
Baltimore/Washington
Wed 12/2
4:55 pm-10:00 pm
2 stops6h 05m
Lambert-St Louis
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$143
BaltimoreSt. Louis
BWI Baltimore/Washington - STL Lambert-St Louis
BWISTL
Baltimore/Washington
Thu 11/19
6:15 am-7:40 am
Nonstop2h 25m
Lambert-St Louis
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$157
BaltimoreSt. Louis
BWI Baltimore/Washington - STL Lambert-St Louis
BWISTL
Baltimore/Washington
Mon 11/2
6:40 am-8:10 am
Nonstop2h 30m
Lambert-St Louis
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$179
BaltimoreSt. Louis
BWI Baltimore/Washington - STL Lambert-St Louis
BWISTL
Baltimore/Washington
Tue 11/10
8:50 pm-10:15 pm
Nonstop2h 25m
Lambert-St Louis
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$179
BaltimoreSt. Louis
BWI Baltimore/Washington - STL Lambert-St Louis
BWISTL
Baltimore/Washington
Mon 11/23
6:40 am-8:10 am
Nonstop2h 30m
Lambert-St Louis
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$179
Quickest round-trip
BaltimoreSt. Louis
BWI Baltimore/Washington - STL Lambert-St Louis
BWISTL
Baltimore/Washington
Thu 10/29
9:15 am-10:30 am
Nonstop2h 15m
Lambert-St Louis
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$179
BaltimoreSt. Louis
BWI Baltimore/Washington - STL Lambert-St Louis
BWISTL
Baltimore/Washington
Sat 10/31
10:10 am-5:35 pm
2 stops8h 25m
Lambert-St Louis
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$183
BaltimoreSt. Louis
BWI Baltimore/Washington - STL Lambert-St Louis
BWISTL
Baltimore/Washington
Fri 12/25
8:50 pm-10:10 pm
Nonstop2h 20m
Lambert-St Louis
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$193
Showing 1-10 of 28 resultsSorted by cheapest first
Best time to book a flight from Maryland to St. Louis
Have a flexible travel schedule? Discover the best time to fly to St. Louis from Maryland with our price prediction graph.
BWI-STL
SBY-STL
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 Maryland to St. Louis
USMD-STL
BWI-STL
SBY-STL
What is the cheapest month to book a flight from Maryland to St. Louis?
Currently, February is the cheapest month in which you can book a flight from Maryland to St. Louis (average of $376). Flying from Maryland to St. Louis in June is currently the most expensive (average of $513). 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 MD to STL?
Find hourly flight availability from Maryland to St. Louis. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated October 5, 2026.
When flying from Maryland to St. Louis, the time of day you fly usually plays a role in the price. Save by searching for a flight in the morning, which can drop the price by up to 11% versus a flight at noon.
How much does it cost to fly round-trip from Maryland to St. Louis?
Airfare is below average for this route at the moment.
Maryland to St. Louis flights typically cost between $346 and $452 in October.The cheapest round-trip price found within the last 5 days was $106 on Frontier (Oct 28-Nov 4).
How far ahead should I book a flight from Maryland to St. Louis?
To ensure you get the cheapest price possible for a flight from Maryland to St. Louis, you should look to book at least 76 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.
What is the cheapest day to fly from Maryland to St. Louis?
Use this chart to determine the cheapest time to fly round-trip from Maryland to St. Louis. Price data was last updated on October 3, 2026.
Travelers seeking maximum savings on their Maryland to St. Louis flight should consider departing on Sunday at noon when fares are most often at their lowest. Sunday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.
Related info for your journey
Find useful and relevant information for your journey from Maryland to St. Louis. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near St. Louis?
Book flights to St. Louis if you plan to visit one of these locationsFairview Heights
O'Fallon
Fenton
Swansea
Eureka
Wentzville
Chesterfield
Maryland Heights
Collinsville
Edwardsville
Glencoe
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Alternative routes for Maryland to St. Louis
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Complete your trip
Complete your trip to St. Louis by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Maryland to St. Louis by cabin class
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Maryland and St. Louis flights
Browse other Maryland and St. Louis flight options. Last updated on October 5, 2026.
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Other flights to St. Louis
Explore flights to St. Louis departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on October 5, 2026.
Top 4 airlines flying from Maryland to St. Louis
Discover the top 4 airlines that operate flights from Maryland to St. Louis. 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 5, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$104 | Average$273 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$175 | Average$382 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$297 | Average$464 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$350 | Average$425 | FlexibilityNo cancel fee | On-time71% |