$71+ Cheap flights from Illinois 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 8/4. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — BWI
Jul 10 — Jul 171
Round-trip
1 adult, Economy
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Cheapest flights from Illinois to MarylandExplore the most affordable flight options available from Illinois to Maryland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 10, 2026.
Explore the most affordable flight options available from Illinois to Maryland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 10, 2026.
This Kiwi.com deal was found by Cheapflights users on 6/10. 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 9/86:33 pm
STL
- BWI
1 stop12h 56m
Frontier
Wed 9/97:31 pm
BWI
- STL
1 stop15h 09m
Frontier
Deal found 6/10![Frontier logo]()
$145
This Kiwi.com deal was found by Cheapflights users on 6/9. 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.
Wed 7/294:57 pm
STL
- BWI
1 stop5h 20m
Frontier
Wed 8/59:37 pm
BWI
- STL
1 stop21h 00m
Frontier
Deal found 6/9![Frontier logo]()
$155
This Kiwi.com deal was found by Cheapflights users on 6/6. 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 8/14:57 pm
STL
- BWI
1 stop5h 20m
Frontier
Mon 8/39:37 pm
BWI
- STL
1 stop21h 00m
Frontier
Deal found 6/6![Frontier logo]()
$157
This Kiwi.com deal was found by Cheapflights users on 6/5. 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 7/294:57 pm
STL
- BWI
1 stop13h 29m
Frontier
Mon 8/39:37 pm
BWI
- STL
1 stop21h 00m
Frontier
Deal found 6/5![Frontier logo]()
$160
This Kiwi.com deal was found by Cheapflights users on 6/10. 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 7/84:57 pm
STL
- BWI
1 stop5h 20m
Frontier
Wed 7/159:37 pm
BWI
- STL
1 stop21h 00m
Frontier
Deal found 6/10![Frontier logo]()
$168
This Kiwi.com deal was found by Cheapflights users on 6/8. 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.
Mon 6/295:06 pm
STL
- BWI
1 stop13h 29m
Frontier
Tue 6/307:16 pm
BWI
- STL
1 stop14h 36m
Frontier
Deal found 6/8![Frontier logo]()
$170
This Kiwi.com deal was found by Cheapflights users on 6/8. 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.
Mon 6/295:06 pm
STL
- BWI
1 stop13h 29m
Frontier
Wed 7/17:27 pm
BWI
- STL
1 stop23h 03m
Frontier
Deal found 6/8![Frontier logo]()
$171
This Kiwi.com deal was found by Cheapflights users on 6/5. 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 7/274:57 pm
STL
- BWI
1 stop13h 29m
Frontier
Mon 8/39:37 pm
BWI
- STL
1 stop21h 00m
Frontier
Deal found 6/5![Frontier logo]()
$177
This Kiwi.com deal was found by Cheapflights users on 6/5. 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 7/286:34 pm
STL
- BWI
1 stop11h 52m
Frontier
Tue 8/48:36 am
BWI
- STL
1 stop10h 01m
Frontier
Deal found 6/5![Frontier logo]()
$182
This Kiwi.com deal was found by Cheapflights users on 6/6. 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 8/84:57 pm
STL
- BWI
1 stop13h 29m
Frontier
Tue 8/119:37 pm
BWI
- STL
1 stop12h 20m
Frontier
Deal found 6/6![Frontier logo]()
$186
This Frontier deal was found by Cheapflights users on 6/5. 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.
Thu 7/231:50 pm
ORD
- PHL
1 stop7h 38m
Frontier
Sat 7/256:05 pm
PHL
- ORD
Nonstop2h 42m
Frontier
Deal found 6/5![Frontier logo]()
$208
This deal was found by Cheapflights users on 6/5. 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.
Fri 7/108:58 pm
ORD
- PHL
Nonstop2h 23m
Frontier
Sat 7/186:05 pm
PHL
- ORD
Nonstop2h 42m
Frontier
Deal found 6/5![Frontier logo]()
$211
Best flights from Illinois to MarylandDiscover carefully curated flight deals from Illinois to Maryland that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 10, 2026.
Discover carefully curated flight deals from Illinois to Maryland that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 10, 2026.
This JetBlue deal was found by Cheapflights users on 6/9. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/2410:56 am
ORD
- PHL
1 stop8h 04m
JetBlue
Fri 9/1110:45 am
PHL
- ORD
1 stop9h 37m
JetBlue
Deal found 6/9![JetBlue logo]()
$219
This Southwest deal was found by Cheapflights users on 6/8. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/15:00 am
MDW
- BWI
Nonstop1h 45m
Southwest
Tue 8/410:55 am
BWI
- MDW
1 stop3h 35m
Southwest
Deal found 6/8![Southwest logo]()
$237
This Delta deal was found by Cheapflights users on 6/10. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/107:10 am
ORD
- BWI
1 stop3h 31m
Delta
Tue 9/159:45 am
BWI
- ORD
1 stop4h 19m
Delta
Deal found 6/10![Delta logo]()
$238
This United Airlines deal was found by Cheapflights users on 6/6. 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 6/3011:07 am
ORD
- IAD
Nonstop2h 05m
United Airlines
Wed 7/88:15 am
IAD
- ORD
Nonstop2h 21m
United Airlines
Deal found 6/6![United Airlines logo]()
$247
This Frontier deal was found by Cheapflights users on 6/5. 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 10/97:00 am
ORD
- BWI
Nonstop2h 14m
Frontier
Sun 10/112:37 pm
BWI
- ORD
1 stop10h 47m
Frontier
Deal found 6/5![Frontier logo]()
$298
This KAYAK deal was found by Cheapflights users on 6/9. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/135:45 pm
ORD
- DCA
1 stop5h 08m
American Airlines
Wed 7/1511:35 am
DCA
- ORD
Nonstop2h 18m
American Airlines
Deal found 6/9![American Airlines logo]()
$337
This Delta deal was found by Cheapflights users on 6/5. 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 8/118:02 am
ORD
- BWI
1 stop6h 44m
Delta
Thu 8/139:59 am
BWI
- ORD
1 stop4h 14m
Delta
Deal found 6/5![Delta logo]()
$241
This Southwest deal was found by Cheapflights users on 6/5. 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 8/179:20 am
MDW
- DCA
1 stop5h 50m
Southwest
Wed 8/196:00 am
DCA
- MDW
2 stops7h 05m
Southwest
Deal found 6/5![Southwest logo]()
$246
This United Airlines deal was found by Cheapflights users on 6/5. 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 9/226:00 am
ORD
- DCA
Nonstop1h 55m
United Airlines
Fri 9/256:30 am
DCA
- ORD
Nonstop2h 16m
United Airlines
Deal found 6/5![United Airlines logo]()
$253
This Delta deal was found by Cheapflights users on 6/5. 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.
Mon 8/175:20 pm
ORD
- DCA
1 stop4h 39m
Delta
Wed 8/196:10 am
DCA
- ORD
1 stop5h 32m
Delta
Deal found 6/5![Delta logo]()
$251
This Southwest deal was found by Cheapflights users on 6/10. 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 7/1012:45 pm
MDW
- DCA
Nonstop1h 50m
Southwest
Tue 7/146:55 pm
DCA
- MDW
Nonstop2h 10m
Southwest
Deal found 6/10![Southwest logo]()
$253
This United Airlines deal was found by Cheapflights users on 6/9. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/292:30 pm
ORD
- BWI
Nonstop2h 06m
United Airlines
Tue 8/48:16 am
BWI
- ORD
Nonstop2h 14m
United Airlines
Deal found 6/9![United Airlines logo]()
$269
This Delta deal was found by Cheapflights users on 6/9. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/176:42 pm
MDW
- IAD
1 stop3h 44m
Delta
Wed 8/198:28 am
IAD
- MDW
1 stop4h 23m
Delta
Deal found 6/9![Delta logo]()
$251
This JetBlue deal was found by Cheapflights users on 6/8. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/210:56 am
ORD
- DCA
1 stop5h 54m
JetBlue
Wed 7/82:25 pm
DCA
- ORD
1 stop6h 06m
JetBlue
Deal found 6/8![JetBlue logo]()
$308
This Southwest deal was found by Cheapflights users on 6/8. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/188:10 pm
MDW
- BWI
Nonstop1h 55m
Southwest
Tue 7/214:50 pm
BWI
- MDW
Nonstop2h 05m
Southwest
Deal found 6/8![Southwest logo]()
$262
This United Airlines deal was found by Cheapflights users on 6/9. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/196:30 am
ORD
- BWI
Nonstop1h 57m
United Airlines
Wed 7/226:15 am
BWI
- ORD
Nonstop2h 15m
United Airlines
Deal found 6/9![United Airlines logo]()
$273
This Delta deal was found by Cheapflights users on 6/9. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/196:00 am
ORD
- DCA
1 stop6h 09m
Delta
Fri 10/2311:00 am
DCA
- ORD
1 stop7h 34m
Delta
Deal found 6/9![Delta logo]()
$257
This Southwest deal was found by Cheapflights users on 6/8. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/187:55 am
MDW
- DCA
1 stop6h 05m
Southwest
Tue 7/213:00 pm
DCA
- MDW
1 stop5h 05m
Southwest
Deal found 6/8![Southwest logo]()
$267
This United Airlines deal was found by Cheapflights users on 6/9. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/219:40 pm
ORD
- IAD
Nonstop2h 05m
United Airlines
Wed 7/221:15 pm
IAD
- ORD
Nonstop2h 14m
United Airlines
Deal found 6/9![United Airlines logo]()
$277
This Delta deal was found by Cheapflights users on 6/7. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/307:01 am
ORD
- DCA
1 stop3h 33m
Delta
Tue 7/78:15 am
DCA
- ORD
1 stop5h 47m
Delta
Deal found 6/7![Delta logo]()
$263
This Southwest deal was found by Cheapflights users on 6/9. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/193:05 pm
MDW
- BWI
Nonstop1h 50m
Southwest
Sun 8/234:45 pm
BWI
- MDW
1 stop3h 35m
Southwest
Deal found 6/9![Southwest logo]()
$271
This United Airlines deal was found by Cheapflights users on 6/10. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/87:30 am
ORD
- BWI
Nonstop2h 09m
United Airlines
Thu 9/178:30 am
BWI
- ORD
Nonstop2h 20m
United Airlines
Deal found 6/10![United Airlines logo]()
$280
This Delta deal was found by Cheapflights users on 6/9. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/116:35 pm
MDW
- IAD
1 stop3h 38m
Delta
Mon 7/136:00 am
IAD
- MDW
1 stop4h 13m
Delta
Deal found 6/9![Delta logo]()
$267
This Southwest deal was found by Cheapflights users on 6/9. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/258:00 am
MDW
- DCA
Nonstop2h 00m
Southwest
Sun 7/267:55 am
DCA
- MDW
Nonstop1h 55m
Southwest
Deal found 6/9![Southwest logo]()
$278
This United Airlines deal was found by Cheapflights users on 6/7. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/167:30 am
ORD
- BWI
Nonstop2h 09m
United Airlines
Sat 9/1910:25 am
BWI
- ORD
Nonstop2h 20m
United Airlines
Deal found 6/7![United Airlines logo]()
$281
This Delta deal was found by Cheapflights users on 6/9. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/246:00 am
MDW
- IAD
1 stop7h 01m
Delta
Tue 7/2810:21 am
IAD
- MDW
1 stop6h 54m
Delta
Deal found 6/9![Delta logo]()
$273
This Southwest deal was found by Cheapflights users on 6/8. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/148:15 am
MDW
- DCA
2 stops6h 35m
Southwest
Mon 8/176:50 pm
DCA
- MDW
1 stop4h 05m
Southwest
Deal found 6/8![Southwest logo]()
$281
This United Airlines deal was found by Cheapflights users on 6/9. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/110:00 am
ORD
- DCA
Nonstop2h 04m
United Airlines
Sun 7/58:25 am
DCA
- ORD
Nonstop2h 19m
United Airlines
Deal found 6/9![United Airlines logo]()
$283
This Delta deal was found by Cheapflights users on 6/9. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/33:22 pm
ORD
- BWI
1 stop5h 03m
Delta
Tue 7/75:27 pm
BWI
- ORD
1 stop4h 04m
Delta
Deal found 6/9![Delta logo]()
$282
This Southwest deal was found by Cheapflights users on 6/9. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/15:40 am
MDW
- DCA
Nonstop1h 45m
Southwest
Mon 7/69:00 pm
DCA
- MDW
Nonstop2h 05m
Southwest
Deal found 6/9![Southwest logo]()
$283
Last-minute flights from Illinois to MarylandDiscover last-minute flight deals from Illinois to Maryland. Data last updated June 10, 2026 and is based on user searches.
Discover last-minute flight deals from Illinois to Maryland. Data last updated June 10, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 6/8. 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.
Mon 6/295:06 pm
STL
- BWI
1 stop13h 29m
Frontier
Tue 6/307:16 pm
BWI
- STL
1 stop14h 36m
Frontier
Deal found 6/8![Frontier logo]()
$170
This Kiwi.com deal was found by Cheapflights users on 6/8. 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.
Mon 6/295:06 pm
STL
- BWI
1 stop13h 29m
Frontier
Wed 7/17:27 pm
BWI
- STL
1 stop23h 03m
Frontier
Deal found 6/8![Frontier logo]()
$171
This Kiwi.com deal was found by Cheapflights users on 6/10. 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 7/84:57 pm
STL
- BWI
1 stop5h 20m
Frontier
Wed 7/159:37 pm
BWI
- STL
1 stop21h 00m
Frontier
Deal found 6/10![Frontier logo]()
$168
This deal was found by Cheapflights users on 6/5. 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.
Fri 7/108:58 pm
ORD
- PHL
Nonstop2h 23m
Frontier
Sat 7/186:05 pm
PHL
- ORD
Nonstop2h 42m
Frontier
Deal found 6/5![Frontier logo]()
$211
This Frontier deal was found by Cheapflights users on 6/5. 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.
Thu 7/231:50 pm
ORD
- PHL
1 stop7h 38m
Frontier
Sat 7/256:05 pm
PHL
- ORD
Nonstop2h 42m
Frontier
Deal found 6/5![Frontier logo]()
$208
This Kiwi.com deal was found by Cheapflights users on 6/5. 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 7/274:57 pm
STL
- BWI
1 stop13h 29m
Frontier
Mon 8/39:37 pm
BWI
- STL
1 stop21h 00m
Frontier
Deal found 6/5![Frontier logo]()
$177
This Kiwi.com deal was found by Cheapflights users on 6/5. 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 7/274:57 pm
STL
- BWI
1 stop13h 29m
Frontier
Tue 8/46:35 am
BWI
- STL
1 stop12h 02m
Frontier
Deal found 6/5![Frontier logo]()
$188
This Kiwi.com deal was found by Cheapflights users on 6/5. 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 7/286:34 pm
STL
- BWI
1 stop11h 52m
Frontier
Tue 8/48:36 am
BWI
- STL
1 stop10h 01m
Frontier
Deal found 6/5![Frontier logo]()
$182
This Kiwi.com deal was found by Cheapflights users on 6/5. 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 7/286:34 pm
STL
- BWI
1 stop11h 52m
Frontier
Wed 8/59:37 pm
BWI
- STL
1 stop21h 00m
Frontier
Deal found 6/5![Frontier logo]()
$194
This Kiwi.com deal was found by Cheapflights users on 6/9. 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.
Wed 7/294:57 pm
STL
- BWI
1 stop5h 20m
Frontier
Wed 8/59:37 pm
BWI
- STL
1 stop21h 00m
Frontier
Deal found 6/9![Frontier logo]()
$155
This Kiwi.com deal was found by Cheapflights users on 6/5. 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 7/294:57 pm
STL
- BWI
1 stop13h 29m
Frontier
Mon 8/39:37 pm
BWI
- STL
1 stop21h 00m
Frontier
Deal found 6/5![Frontier logo]()
$160
This Kiwi.com deal was found by Cheapflights users on 6/10. 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 7/294:57 pm
STL
- BWI
1 stop5h 20m
Frontier
Fri 7/319:37 pm
BWI
- STL
1 stop12h 20m
Frontier
Deal found 6/10![Frontier logo]()
$195
One-way flights from Illinois to MarylandSearch for one-way flight options from Illinois to Maryland. Find affordable one-way fares based on user searches. Data last updated June 10, 2026.
Search for one-way flight options from Illinois to Maryland. Find affordable one-way fares based on user searches. Data last updated June 10, 2026.
This Kiwi.com deal was found by Cheapflights users on 6/9. 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.
Tue 8/46:34 pm
STL
- BWI
1 stop11h 52m
Frontier
Deal found 6/9![Frontier logo]()
$71
This Kiwi.com deal was found by Cheapflights users on 6/9. 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.
Wed 8/54:57 pm
STL
- BWI
1 stop5h 20m
Frontier
Deal found 6/9![Frontier logo]()
$72
This Kiwi.com deal was found by Cheapflights users on 6/9. 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.
Tue 8/116:34 pm
STL
- BWI
1 stop11h 52m
Frontier
Deal found 6/9![Frontier logo]()
$80
This Kiwi.com deal was found by Cheapflights users on 6/9. 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.
Tue 9/86:33 pm
STL
- BWI
1 stop20h 39m
Frontier
Deal found 6/9![Frontier logo]()
$81
This Kiwi.com deal was found by Cheapflights users on 6/8. 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.
Sat 8/14:57 pm
STL
- BWI
1 stop5h 20m
Frontier
Deal found 6/8![Frontier logo]()
$83
This Kiwi.com deal was found by Cheapflights users on 6/8. 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.
Mon 6/295:06 pm
STL
- BWI
1 stop13h 29m
Frontier
Deal found 6/8![Frontier logo]()
$87
This Expedia deal was found by Cheapflights users on 6/8. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/178:58 pm
ORD
- PHL
Nonstop2h 23m
Frontier
Deal found 6/8![Frontier logo]()
$88
This Kiwi.com deal was found by Cheapflights users on 6/5. 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 6/306:31 pm
STL
- BWI
1 stop12h 04m
Frontier
Deal found 6/5![Frontier logo]()
$88
This Super.com deal was found by Cheapflights users on 6/8. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/41:55 pm
ORD
- PHL
1 stop5h 05m
JetBlue
Deal found 6/8![JetBlue logo]()
$89
This Super.com deal was found by Cheapflights users on 6/9. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/810:56 am
ORD
- PHL
1 stop8h 04m
JetBlue
Deal found 6/9![JetBlue logo]()
$90
This Super.com deal was found by Cheapflights users on 6/10. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/278:00 pm
ORD
- PHL
Nonstop2h 32m
Frontier
Deal found 6/10![Frontier logo]()
$92
This Southwest deal was found by Cheapflights users on 6/8. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/51:00 pm
MDW
- PHL
Nonstop2h 00m
Southwest
Deal found 6/8![Southwest logo]()
$93
Find flight deals from Illinois to Maryland
Keep the following information in mind while searching for Illinois to Maryland flight deals. Data was last updated June 10, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $145 (Kiwi.com) |
One-way from | $71 (Kiwi.com) |
Popular in | March |
Cheapest in | August |
Average price | $329 |
Good round-trip deal | $301 or less |
Good one-way deal | $138 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from Illinois 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 2,558,603 searches. Data last updated June 10, 2026.
Use the filters below to find and compare flights from Illinois to Maryland that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
ChicagoPhiladelphia
ORD - PHL
ORDPHL
Chicago O'Hare Intl
Mon 8/24
10:56 am-8:00 pm
1 stop8h 04m
Philadelphia
Fri 9/11
10:45 am-7:22 pm
1 stop9h 37m
$219
ChicagoBaltimore
MDW - BWI
MDWBWI
Chicago Midway
Sat 8/1
5:00 am-7:45 am
Nonstop1h 45m
Baltimore/Washington
Tue 8/4
10:55 am-1:30 pm
1 stop3h 35m
$237
ChicagoBaltimore
ORD - BWI
ORDBWI
Chicago O'Hare Intl
Thu 9/10
7:10 am-11:41 am
1 stop3h 31m
Baltimore/Washington
Tue 9/15
9:45 am-1:04 pm
1 stop4h 19m
$238
ChicagoBaltimore
ORD - BWI
ORDBWI
Chicago O'Hare Intl
Tue 8/11
8:02 am-3:46 pm
1 stop6h 44m
Baltimore/Washington
Thu 8/13
9:59 am-1:13 pm
1 stop4h 14m
$241
ChicagoWashington, D.C.
MDW - DCA
MDWDCA
Chicago Midway
Mon 8/17
9:20 am-4:10 pm
1 stop5h 50m
Washington, D.C. Reagan-National
Wed 8/19
6:00 am-12:05 pm
2 stops7h 05m
$246
ChicagoWashington, D.C.
ORD - IAD
ORDIAD
Chicago O'Hare Intl
Tue 6/30
11:07 am-2:12 pm
Nonstop2h 05m
Washington, D.C. Dulles Intl
Wed 7/8
8:15 am-9:36 am
Nonstop2h 21m
$247
ChicagoWashington, D.C.
ORD - DCA
ORDDCA
Chicago O'Hare Intl
Mon 8/17
5:20 pm-10:59 pm
1 stop4h 39m
Washington, D.C. Reagan-National
Wed 8/19
6:10 am-10:42 am
1 stop5h 32m
$251
ChicagoWashington, D.C.
MDW - IAD
MDWIAD
Chicago Midway
Mon 8/17
6:42 pm-11:26 pm
1 stop3h 44m
Washington, D.C. Dulles Intl
Wed 8/19
8:28 am-11:51 am
1 stop4h 23m
$251
ChicagoWashington, D.C.
ORD - DCA
ORDDCA
Chicago O'Hare Intl
Tue 9/22
6:00 am-8:55 am
Nonstop1h 55m
Washington, D.C. Reagan-National
Fri 9/25
6:30 am-7:46 am
Nonstop2h 16m
$253
ChicagoWashington, D.C.
MDW - DCA
MDWDCA
Chicago Midway
Fri 7/10
12:45 pm-3:35 pm
Nonstop1h 50m
Washington, D.C. Reagan-National
Tue 7/14
6:55 pm-8:05 pm
Nonstop2h 10m
$253
Showing 1-10 of 60 resultsSorted by cheapest first
Best time to book a flight from Illinois to Maryland
Have a flexible travel schedule? Discover the best time to fly to Maryland from Illinois with our price prediction graph.
MDW-PHL
STL-BWI
ORD-PHL
ORD-BWI
MDW-IAD
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 Illinois to Maryland
USIL-USMD
MDW-PHL
STL-BWI
ORD-PHL
ORD-BWI
What is the cheapest month to book a flight from Illinois to Maryland?
Currently, February is the cheapest month in which you can book a flight from Illinois to Maryland (average of $27). Flying from Illinois to Maryland in October is currently the most expensive (average of $506). 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 IL to MD?
Find hourly flight availability from Illinois 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 June 10, 2026.
It’s typically best to fly out from Illinois to Maryland at noon. Doing so could potentially save you 27% on the flight price compared to flying in the evening, which is usually more expensive.
Weekly flight availability from Illinois to Maryland
Explore weekly flight availability from Illinois to Maryland. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated June 10, 2026.
The most flights from USIL to USMD are scheduled on a Monday (25 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (14 on average).
How much does it cost to fly round-trip from Illinois to Maryland?
How far ahead should I book a flight from Illinois to Maryland?
To ensure you get the cheapest price possible for a flight from Illinois to Maryland, you should look to book at least 73 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 Illinois to Maryland?
Use this chart to determine the cheapest time to fly round-trip from Illinois to Maryland. Price data was last updated on June 8, 2026.
Travelers seeking maximum savings on their Illinois to Maryland flight should consider departing on Monday 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.
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 June 10, 2026.
Read through reviews of airlines operating flights from Illinois to Maryland, such as Southwest,Delta, andUnited Airlines. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Food
7.0
Crew
8.6
Overall
7.9
Entertainment
7.5
Boarding
8.1
Comfort
8.0
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Food
7.0
Crew
8.6
Overall
7.9
Entertainment
7.5
Boarding
8.1
Comfort
8.0
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Food
7.0
Crew
8.6
Overall
7.9
Entertainment
7.5
Boarding
8.1
Comfort
8.0
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Food
7.0
Crew
8.6
Overall
7.9
Entertainment
7.5
Boarding
8.1
Comfort
8.0
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Food
7.0
Crew
8.6
Overall
7.9
Entertainment
7.5
Boarding
8.1
Comfort
8.0
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Food
7.0
Crew
8.6
Overall
7.9
Entertainment
7.5
Boarding
8.1
Comfort
8.0
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Related info for your journey
Find useful and relevant information for your journey from Illinois 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 Illinois 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 Illinois to Maryland by cabin class
Find flights from Illinois to Maryland, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Illinois and Maryland flights
Browse other Illinois and Maryland flight options. Last updated on June 10, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Find a return flight route from Maryland
Find the right flight back to Illinois after your stay in Maryland
Illinois to Maryland flights
Consider these flights traveling from Illinois to Maryland.
Top 5 airlines flying from Illinois to Maryland
Discover the top 5 airlines that operate flights from Illinois 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 2,558,603 searches. Data last updated June 10, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$57 | Average$162 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$127 | Average$264 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$146 | Average$375 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$148 | Average$396 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$183 | Average$364 | FlexibilityNo cancel fee | On-timeN/A |