$65+ 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 7/3. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — BWI
Jun 15 — Jun 221
Round-trip
1 adult, Economy
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Find cheap flights from Illinois to Maryland with Cheapflights
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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 May 16, 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 May 16, 2026.
This Expedia deal was found by Cheapflights users on 5/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/138:00 pm
ORD
- PHL
Nonstop2h 32m
Frontier
Sat 6/205:06 pm
PHL
- ORD
Nonstop2h 41m
Frontier
Deal found 5/11![Frontier logo]()
$189
This Expedia deal was found by Cheapflights users on 5/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/36:00 am
MDW
- PHL
1 stop12h 10m
Frontier
Wed 6/104:35 pm
PHL
- MDW
1 stop6h 36m
Frontier
Deal found 5/11![Frontier logo]()
$190
This Frontier deal was found by Cheapflights users on 5/13. 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.
Tue 8/44:09 pm
STL
- PHL
1 stop7h 28m
Frontier
Tue 8/256:04 pm
PHL
- STL
1 stop7h 10m
Frontier
Deal found 5/13![Frontier logo]()
$190
This Frontier deal was found by Cheapflights users on 5/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/26:55 am
ORD
- PHL
1 stop11h 15m
Frontier
Tue 6/98:30 am
PHL
- ORD
1 stop12h 23m
Frontier
Deal found 5/11![Frontier logo]()
$190
This Kiwi.com deal was found by Cheapflights users on 5/13. 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 7/188:05 pm
ORD
- PHL
Nonstop2h 26m
Frontier
Tue 7/219:00 am
PHL
- ORD
2 stops11h 53m
Frontier
Deal found 5/13![Frontier logo]()
$191
This Kiwi.com deal was found by Cheapflights users on 5/13. 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 8/38:05 pm
ORD
- PHL
Nonstop2h 26m
Frontier
Tue 8/256:00 am
PHL
- ORD
1 stop7h 25m
Frontier
Deal found 5/13![Frontier logo]()
$192
This Trip.com deal was found by Cheapflights users on 5/14. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/68:00 pm
ORD
- PHL
Nonstop2h 27m
Frontier
Mon 6/155:06 pm
PHL
- ORD
Nonstop2h 41m
Frontier
Deal found 5/14![Frontier logo]()
$193
This Super.com deal was found by Cheapflights users on 5/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/208:00 pm
ORD
- PHL
Nonstop2h 32m
Frontier
Mon 6/2212:42 pm
PHL
- ORD
1 stop9h 01m
Frontier
Deal found 5/11![Frontier logo]()
$194
This Kiwi.com deal was found by Cheapflights users on 5/13. 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 8/138:05 pm
ORD
- PHL
Nonstop2h 26m
Frontier
Sun 8/165:18 pm
PHL
- ORD
Nonstop2h 42m
Frontier
Deal found 5/13![Frontier logo]()
$195
This Kiwi.com deal was found by Cheapflights users on 5/14. 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 7/41:29 pm
ORD
- PHL
1 stop8h 00m
Frontier
Mon 7/65:18 pm
PHL
- ORD
Nonstop2h 42m
Frontier
Deal found 5/14![Frontier logo]()
$196
This Kiwi.com deal was found by Cheapflights users on 5/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/291:50 pm
ORD
- BWI
1 stop8h 07m
Frontier
Sun 5/319:43 pm
BWI
- ORD
1 stop11h 12m
Frontier
Deal found 5/10![Frontier logo]()
$196
This Southwest deal was found by Cheapflights users on 5/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/97:25 am
MDW
- BWI
Nonstop1h 50m
Southwest
Tue 6/168:30 pm
BWI
- MDW
Nonstop2h 05m
Southwest
Deal found 5/10![Southwest logo]()
$197
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 May 16, 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 May 16, 2026.
This Frontier deal was found by Cheapflights users on 5/15. 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.
Tue 8/44:09 pm
STL
- PHL
1 stop7h 28m
Frontier
Tue 8/2512:42 pm
PHL
- STL
1 stop7h 41m
Frontier
Deal found 5/15![Frontier logo]()
$190
This Southwest deal was found by Cheapflights users on 5/14. 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 6/68:10 pm
MDW
- BWI
Nonstop1h 50m
Southwest
Tue 6/97:40 am
BWI
- MDW
Nonstop2h 00m
Southwest
Deal found 5/14![Southwest logo]()
$233
This Delta deal was found by Cheapflights users on 5/14. 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 6/65:19 pm
ORD
- DCA
1 stop4h 40m
Delta
Tue 6/96:00 am
DCA
- ORD
1 stop5h 13m
Delta
Deal found 5/14![Delta logo]()
$238
This United Airlines deal was found by Cheapflights users on 5/14. 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 8/136:25 am
ORD
- IAD
Nonstop1h 58m
United Airlines
Mon 8/175:15 pm
IAD
- ORD
Nonstop2h 22m
United Airlines
Deal found 5/14![United Airlines logo]()
$239
This KAYAK deal was found by Cheapflights users on 5/13. 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.
Tue 6/235:10 am
ORD
- DCA
1 stop4h 40m
American Airlines
Wed 6/2410:10 pm
DCA
- ORD
Nonstop2h 20m
American Airlines
Deal found 5/13![American Airlines logo]()
$296
This Delta deal was found by Cheapflights users on 5/13. 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 6/66:36 pm
MDW
- DCA
1 stop3h 23m
Delta
Wed 6/106:00 am
DCA
- MDW
1 stop4h 14m
Delta
Deal found 5/13![Delta logo]()
$238
This Southwest deal was found by Cheapflights users on 5/13. 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 6/41:00 pm
MDW
- BWI
1 stop3h 15m
Southwest
Tue 6/96:30 pm
BWI
- MDW
Nonstop2h 05m
Southwest
Deal found 5/13![Southwest logo]()
$239
This United Airlines deal was found by Cheapflights users on 5/10. 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.
Wed 7/82:30 pm
ORD
- PHL
Nonstop2h 22m
United Airlines
Sat 7/118:05 am
PHL
- ORD
Nonstop2h 29m
United Airlines
Deal found 5/10![United Airlines logo]()
$247
This Southwest deal was found by Cheapflights users on 5/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/48:20 am
MDW
- DCA
Nonstop1h 55m
Southwest
Mon 6/89:00 pm
DCA
- MDW
Nonstop2h 00m
Southwest
Deal found 5/12![Southwest logo]()
$239
This United Airlines deal was found by Cheapflights users on 5/13. 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 7/1811:33 am
ORD
- PHL
Nonstop2h 14m
United Airlines
Tue 7/218:05 am
PHL
- ORD
Nonstop2h 29m
United Airlines
Deal found 5/13![United Airlines logo]()
$247
This Delta deal was found by Cheapflights users on 5/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/35:15 pm
MDW
- DCA
1 stop5h 29m
Delta
Thu 6/46:00 am
DCA
- MDW
1 stop5h 00m
Delta
Deal found 5/11![Delta logo]()
$258
This Frontier deal was found by Cheapflights users on 5/15. 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.
Sat 7/114:09 pm
STL
- PHL
1 stop7h 04m
Frontier
Wed 7/155:05 pm
PHL
- STL
1 stop7h 54m
Frontier
Deal found 5/15![Frontier logo]()
$294
This Southwest deal was found by Cheapflights users on 5/10. 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.
Wed 6/312:45 pm
MDW
- BWI
1 stop3h 45m
Southwest
Mon 6/84:05 pm
BWI
- MDW
Nonstop2h 05m
Southwest
Deal found 5/10![Southwest logo]()
$243
This United Airlines deal was found by Cheapflights users on 5/14. 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 7/186:00 am
ORD
- DCA
Nonstop1h 54m
United Airlines
Tue 7/2111:57 am
DCA
- ORD
Nonstop2h 18m
United Airlines
Deal found 5/14![United Airlines logo]()
$247
This Delta deal was found by Cheapflights users on 5/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/93:22 pm
ORD
- DCA
1 stop5h 27m
Delta
Mon 7/136:00 am
DCA
- ORD
1 stop5h 37m
Delta
Deal found 5/11![Delta logo]()
$259
This KAYAK deal was found by Cheapflights users on 5/15. 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.
Wed 5/275:34 pm
ORD
- DCA
1 stop5h 20m
American Airlines
Thu 5/286:23 am
DCA
- ORD
1 stop5h 24m
American Airlines
Deal found 5/15![American Airlines logo]()
$325
This Southwest deal was found by Cheapflights users on 5/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/287:45 am
MDW
- BWI
1 stop4h 00m
Southwest
Tue 6/26:20 pm
BWI
- MDW
Nonstop2h 10m
Southwest
Deal found 5/12![Southwest logo]()
$247
This United Airlines deal was found by Cheapflights users on 5/14. 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 7/113:53 pm
ORD
- IAD
Nonstop2h 09m
United Airlines
Tue 7/148:15 am
IAD
- ORD
Nonstop2h 21m
United Airlines
Deal found 5/14![United Airlines logo]()
$247
This Delta deal was found by Cheapflights users on 5/10. 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 6/255:30 am
ORD
- IAD
1 stop5h 09m
Delta
Sat 6/275:20 pm
IAD
- ORD
1 stop4h 11m
Delta
Deal found 5/10![Delta logo]()
$259
This Southwest deal was found by Cheapflights users on 5/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/225:05 pm
MDW
- DCA
Nonstop1h 50m
Southwest
Mon 7/279:00 pm
DCA
- MDW
Nonstop2h 00m
Southwest
Deal found 5/12![Southwest logo]()
$247
This United Airlines deal was found by Cheapflights users on 5/10. 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 6/306:29 am
ORD
- BWI
Nonstop1h 57m
United Airlines
Sat 7/116:15 am
BWI
- ORD
Nonstop2h 15m
United Airlines
Deal found 5/10![United Airlines logo]()
$253
This Delta deal was found by Cheapflights users on 5/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/282:00 pm
ORD
- DCA
1 stop3h 59m
Delta
Tue 6/26:15 pm
DCA
- ORD
1 stop5h 12m
Delta
Deal found 5/11![Delta logo]()
$263
This Southwest deal was found by Cheapflights users on 5/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/277:50 am
MDW
- BWI
1 stop3h 20m
Southwest
Wed 6/34:05 pm
BWI
- MDW
1 stop3h 55m
Southwest
Deal found 5/11![Southwest logo]()
$252
This United Airlines deal was found by Cheapflights users on 5/13. 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 7/92:30 pm
ORD
- BWI
Nonstop2h 06m
United Airlines
Tue 7/146:15 am
BWI
- ORD
Nonstop2h 15m
United Airlines
Deal found 5/13![United Airlines logo]()
$253
This Delta deal was found by Cheapflights users on 5/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/288:10 am
ORD
- IAD
1 stop5h 00m
Delta
Tue 6/25:21 pm
IAD
- ORD
1 stop3h 53m
Delta
Deal found 5/11![Delta logo]()
$263
This American Airlines deal was found by Cheapflights users on 5/15. 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 7/115:48 pm
STL
- PHL
Nonstop2h 22m
American Airlines
Wed 7/1510:35 am
PHL
- STL
1 stop7h 47m
American Airlines
Deal found 5/15![American Airlines logo]()
$388
This Southwest deal was found by Cheapflights users on 5/10. 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.
Sat 6/208:10 pm
MDW
- BWI
Nonstop1h 50m
Southwest
Wed 6/248:30 pm
BWI
- MDW
Nonstop2h 05m
Southwest
Deal found 5/10![Southwest logo]()
$253
This United Airlines deal was found by Cheapflights users on 5/10. 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 6/236:20 am
ORD
- BWI
Nonstop1h 57m
United Airlines
Fri 6/266:15 am
BWI
- ORD
Nonstop2h 15m
United Airlines
Deal found 5/10![United Airlines logo]()
$253
This Delta deal was found by Cheapflights users on 5/14. 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 8/115:20 pm
ORD
- PHL
1 stop5h 06m
Delta
Wed 8/196:05 am
PHL
- ORD
1 stop5h 39m
Delta
Deal found 5/14![Delta logo]()
$267
This Southwest deal was found by Cheapflights users on 5/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/307:25 am
MDW
- BWI
Nonstop1h 50m
Southwest
Sat 7/119:25 pm
BWI
- MDW
Nonstop2h 00m
Southwest
Deal found 5/10![Southwest logo]()
$253
Last-minute flights from Illinois to MarylandDiscover last-minute flight deals from Illinois to Maryland. Data last updated May 16, 2026 and is based on user searches.
Discover last-minute flight deals from Illinois to Maryland. Data last updated May 16, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 5/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/291:50 pm
ORD
- BWI
1 stop8h 07m
Frontier
Sun 5/319:43 pm
BWI
- ORD
1 stop11h 12m
Frontier
Deal found 5/10![Frontier logo]()
$196
This Frontier deal was found by Cheapflights users on 5/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/21:29 pm
ORD
- PHL
1 stop7h 41m
Frontier
Wed 6/31:30 pm
PHL
- ORD
1 stop6h 59m
Frontier
Deal found 5/11![Frontier logo]()
$190
This Frontier deal was found by Cheapflights users on 5/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/26:33 pm
STL
- PHL
1 stop11h 39m
Frontier
Wed 6/312:21 pm
PHL
- STL
1 stop12h 36m
Frontier
Deal found 5/12![Frontier logo]()
$190
This Frontier deal was found by Cheapflights users on 5/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/312:04 pm
MDW
- PHL
1 stop6h 06m
Frontier
Tue 6/94:35 pm
PHL
- MDW
1 stop6h 36m
Frontier
Deal found 5/12![Frontier logo]()
$190
This Booking.com deal was found by Cheapflights users on 5/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/68:00 pm
ORD
- PHL
Nonstop2h 27m
Frontier
Sun 6/78:30 am
PHL
- ORD
1 stop11h 59m
Frontier
Deal found 5/12![Frontier logo]()
$191
This Trip.com deal was found by Cheapflights users on 5/14. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/68:00 pm
ORD
- PHL
Nonstop2h 27m
Frontier
Mon 6/155:06 pm
PHL
- ORD
Nonstop2h 41m
Frontier
Deal found 5/14![Frontier logo]()
$193
This Trip.com deal was found by Cheapflights users on 5/14. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/61:29 pm
ORD
- PHL
1 stop7h 41m
Frontier
Sat 6/135:06 pm
PHL
- ORD
Nonstop2h 41m
Frontier
Deal found 5/14![Frontier logo]()
$195
This Southwest deal was found by Cheapflights users on 5/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/97:25 am
MDW
- BWI
Nonstop1h 50m
Southwest
Tue 6/168:30 pm
BWI
- MDW
Nonstop2h 05m
Southwest
Deal found 5/10![Southwest logo]()
$197
This Frontier deal was found by Cheapflights users on 5/13. 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 6/118:00 pm
ORD
- PHL
Nonstop2h 32m
Frontier
Sat 6/135:06 pm
PHL
- ORD
Nonstop2h 41m
Frontier
Deal found 5/13![Frontier logo]()
$197
This Orbitz deal was found by Cheapflights users on 5/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/138:00 pm
ORD
- PHL
Nonstop2h 32m
Frontier
Mon 6/155:06 pm
PHL
- ORD
Nonstop2h 41m
Frontier
Deal found 5/11![Frontier logo]()
$189
This Super.com deal was found by Cheapflights users on 5/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/208:00 pm
ORD
- PHL
Nonstop2h 32m
Frontier
Mon 6/2212:42 pm
PHL
- ORD
1 stop9h 01m
Frontier
Deal found 5/11![Frontier logo]()
$194
This Kiwi.com deal was found by Cheapflights users on 5/14. 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 6/278:00 pm
ORD
- PHL
Nonstop2h 32m
Frontier
Thu 7/26:00 am
PHL
- ORD
1 stop7h 24m
Frontier
Deal found 5/14![Frontier logo]()
$196
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 May 16, 2026.
Search for one-way flight options from Illinois to Maryland. Find affordable one-way fares based on user searches. Data last updated May 16, 2026.
This Kiwi.com deal was found by Cheapflights users on 5/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/35:06 pm
STL
- IAD
1 stop15h 53m
Frontier
Deal found 5/10![Frontier logo]()
$65
This Super.com deal was found by Cheapflights users on 5/13. 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.
Thu 6/118:00 pm
ORD
- PHL
Nonstop2h 32m
Frontier
Deal found 5/13![Frontier logo]()
$81
This Frontier deal was found by Cheapflights users on 5/14. 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 7/98:05 pm
ORD
- PHL
Nonstop2h 26m
Frontier
Deal found 5/14![Frontier logo]()
$84
This Super.com deal was found by Cheapflights users on 5/14. 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.
Mon 6/158:00 pm
ORD
- PHL
Nonstop2h 32m
Frontier
Deal found 5/14![Frontier logo]()
$86
This CheapOair deal was found by Cheapflights users on 5/14. 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.
Thu 6/48:00 pm
ORD
- PHL
Nonstop2h 27m
Frontier
Deal found 5/14![Frontier logo]()
$89
This Super.com deal was found by Cheapflights users on 5/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/26:00 am
MDW
- PHL
1 stop5h 25m
Frontier
Deal found 5/11![Frontier logo]()
$91
This Super.com deal was found by Cheapflights users on 5/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/21:29 pm
ORD
- PHL
1 stop7h 41m
Frontier
Deal found 5/11![Frontier logo]()
$91
This Super.com deal was found by Cheapflights users on 5/13. 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 7/86:00 am
MDW
- PHL
1 stop5h 22m
Frontier
Deal found 5/13![Frontier logo]()
$92
This Super.com deal was found by Cheapflights users on 5/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/81:50 pm
ORD
- PHL
1 stop7h 38m
Frontier
Deal found 5/12![Frontier logo]()
$92
This Trip.com deal was found by Cheapflights users on 5/10. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/312:04 pm
MDW
- PHL
1 stop6h 06m
Frontier
Deal found 5/10![Frontier logo]()
$94
This Super.com deal was found by Cheapflights users on 5/10. 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.
Wed 6/31:29 pm
ORD
- PHL
1 stop7h 41m
Frontier
Deal found 5/10![Frontier logo]()
$94
This Super.com deal was found by Cheapflights users on 5/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/164:17 pm
STL
- PHL
1 stop7h 27m
Frontier
Deal found 5/12![Frontier logo]()
$94
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 May 16, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $189 (Orbitz) |
One-way from | $65 (Kiwi.com) |
Popular in | March |
Cheapest in | August |
Average price | $298 |
Good round-trip deal | $242 or less |
Good one-way deal | $144 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 May 16, 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
St. LouisPhiladelphia
STL - PHL
STLPHL
Lambert-St Louis
Tue 8/4
4:09 pm-12:37 am
1 stop7h 28m
Philadelphia
Tue 8/25
12:42 pm-7:23 pm
1 stop7h 41m
$190
Quickest round-trip
ChicagoBaltimore
MDW - BWI
MDWBWI
Chicago Midway
Sat 6/6
8:10 pm-11:00 pm
Nonstop1h 50m
Baltimore/Washington
Tue 6/9
7:40 am-8:40 am
Nonstop2h 00m
$233
ChicagoWashington, D.C.
ORD - DCA
ORDDCA
Chicago O'Hare Intl
Sat 6/6
5:19 pm-10:59 pm
1 stop4h 40m
Washington, D.C. Reagan-National
Tue 6/9
6:00 am-10:13 am
1 stop5h 13m
$238
ChicagoWashington, D.C.
MDW - DCA
MDWDCA
Chicago Midway
Sat 6/6
6:36 pm-10:59 pm
1 stop3h 23m
Washington, D.C. Reagan-National
Wed 6/10
6:00 am-9:14 am
1 stop4h 14m
$238
ChicagoWashington, D.C.
ORD - IAD
ORDIAD
Chicago O'Hare Intl
Thu 8/13
6:25 am-9:23 am
Nonstop1h 58m
Washington, D.C. Dulles Intl
Mon 8/17
5:15 pm-6:37 pm
Nonstop2h 22m
$239
ChicagoBaltimore
MDW - BWI
MDWBWI
Chicago Midway
Thu 6/4
1:00 pm-5:15 pm
1 stop3h 15m
Baltimore/Washington
Tue 6/9
6:30 pm-7:35 pm
Nonstop2h 05m
$239
ChicagoWashington, D.C.
MDW - DCA
MDWDCA
Chicago Midway
Thu 6/4
8:20 am-11:15 am
Nonstop1h 55m
Washington, D.C. Reagan-National
Mon 6/8
9:00 pm-10:00 pm
Nonstop2h 00m
$239
ChicagoBaltimore
MDW - BWI
MDWBWI
Chicago Midway
Wed 6/3
12:45 pm-5:30 pm
1 stop3h 45m
Baltimore/Washington
Mon 6/8
4:05 pm-5:10 pm
Nonstop2h 05m
$243
ChicagoPhiladelphia
ORD - PHL
ORDPHL
Chicago O'Hare Intl
Wed 7/8
2:30 pm-5:52 pm
Nonstop2h 22m
Philadelphia
Sat 7/11
8:05 am-9:34 am
Nonstop2h 29m
$247
ChicagoPhiladelphia
ORD - PHL
ORDPHL
Chicago O'Hare Intl
Sat 7/18
11:33 am-2:47 pm
Nonstop2h 14m
Philadelphia
Tue 7/21
8:05 am-9:34 am
Nonstop2h 29m
$247
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.
ORD-PHL
MDW-PHL
STL-PHL
ORD-BWI
MDW-BWI
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
ORD-PHL
MDW-PHL
STL-PHL
ORD-BWI
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 12 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 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 $547). 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 May 16, 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.
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 May 9, 2026.
Travelers seeking maximum savings on their Illinois to Maryland flight should consider departing on Friday at noon when fares are most often at their lowest. Sunday evenings flights should be avoided if possible as fares are typically the most expensive at this time.
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 May 16, 2026.
The most flights from USIL to USMD are scheduled on a Friday (25 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (17 on average).
How much does it cost to fly round-trip from Illinois to Maryland?
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 May 16, 2026.
Read through reviews of airlines operating flights from Illinois to Maryland, such as Southwest,United Airlines, andAmerican 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.
Boarding
8.1
Comfort
8.0
Food
7.0
Overall
8.0
Crew
8.6
Entertainment
7.5
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Boarding
8.1
Comfort
8.0
Food
7.0
Overall
8.0
Crew
8.6
Entertainment
7.5
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Boarding
8.1
Comfort
8.0
Food
7.0
Overall
8.0
Crew
8.6
Entertainment
7.5
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Boarding
8.1
Comfort
8.0
Food
7.0
Overall
8.0
Crew
8.6
Entertainment
7.5
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Boarding
8.1
Comfort
8.0
Food
7.0
Overall
8.0
Crew
8.6
Entertainment
7.5
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Boarding
8.1
Comfort
8.0
Food
7.0
Overall
8.0
Crew
8.6
Entertainment
7.5
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
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 May 16, 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 6 airlines flying from Illinois to Maryland
Discover the top 6 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 May 16, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$38 | Average$119 | FlexibilityNo cancel fee | On-time65% | |
| Cheapest$57 | Average$161 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$114 | Average$372 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$127 | Average$262 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$148 | Average$417 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$183 | Average$364 | FlexibilityNo cancel fee | On-timeN/A |