$92+ Cheap flights from Maryland to Illinois
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 8/13. Fares are subject to change and may not be available on all flights or dates of travel.
BWI — ORD
Jul 15 — Jul 221
Round-trip
1 adult, Economy
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Cheapest flights from Maryland to IllinoisExplore the most affordable flight options available from Maryland to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 15, 2026.
Explore the most affordable flight options available from Maryland to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 15, 2026.
This Frontier deal was found by Cheapflights users on 6/11. 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.
Mon 8/34:49 pm
PHL
- ORD
1 stop7h 21m
Frontier
Sat 8/158:52 pm
ORD
- PHL
Nonstop2h 23m
Frontier
Deal found 6/11![Frontier logo]()
$201
This Kiwi.com deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/58:30 am
PHL
- ORD
1 stop12h 23m
Frontier
Fri 8/148:58 pm
ORD
- PHL
Nonstop2h 23m
Frontier
Deal found 6/11![Frontier logo]()
$202
This JetBlue deal was found by Cheapflights users on 6/12. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/228:28 am
PHL
- ORD
1 stop5h 31m
JetBlue
Mon 8/2410:56 am
ORD
- PHL
1 stop8h 04m
JetBlue
Deal found 6/12![JetBlue logo]()
$203
This United Airlines deal was found by Cheapflights users on 6/11. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/511:38 am
PHL
- ORD
Nonstop2h 28m
United Airlines
Thu 8/136:30 am
ORD
- PHL
Nonstop2h 08m
United Airlines
Deal found 6/11![United Airlines logo]()
$204
This Southwest deal was found by Cheapflights users on 6/11. 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 8/2610:45 am
PHL
- MDW
Nonstop2h 10m
Southwest
Sat 8/298:10 am
MDW
- PHL
Nonstop2h 05m
Southwest
Deal found 6/11![Southwest logo]()
$204
This Delta deal was found by Cheapflights users on 6/11. 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.
Tue 8/45:15 am
PHL
- ORD
1 stop5h 08m
Delta
Tue 8/118:48 am
ORD
- PHL
1 stop6h 45m
Delta
Deal found 6/11![Delta logo]()
$205
This Delta deal was found by Cheapflights users on 6/11. 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 8/55:15 am
PHL
- MDW
1 stop5h 44m
Delta
Wed 8/121:27 pm
MDW
- PHL
1 stop4h 58m
Delta
Deal found 6/11![Delta logo]()
$205
This Super.com deal was found by Cheapflights users on 6/12. 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.
Thu 8/205:06 pm
PHL
- ORD
Nonstop2h 41m
Frontier
Sat 8/227:52 pm
ORD
- PHL
Nonstop2h 28m
Frontier
Deal found 6/12![Frontier logo]()
$206
This Super.com deal was found by Cheapflights users on 6/11. 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.
Thu 7/236:05 pm
PHL
- ORD
Nonstop2h 42m
Frontier
Sat 7/258:52 pm
ORD
- PHL
Nonstop2h 23m
Frontier
Deal found 6/11![Frontier logo]()
$207
This Orbitz deal was found by Cheapflights users on 6/14. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/211:41 am
PHL
- ORD
1 stop11h 45m
Frontier
Sat 9/57:52 pm
ORD
- PHL
Nonstop2h 28m
Frontier
Deal found 6/14![Frontier logo]()
$208
This Super.com deal was found by Cheapflights users on 6/13. 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.
Sat 8/156:05 pm
PHL
- ORD
Nonstop2h 42m
Frontier
Mon 8/178:58 pm
ORD
- PHL
Nonstop2h 23m
Frontier
Deal found 6/13![Frontier logo]()
$209
This Kiwi.com deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/76:11 pm
PHL
- ORD
Nonstop2h 42m
Frontier
Tue 8/119:57 pm
ORD
- PHL
1 stop12h 52m
Frontier
Deal found 6/11![Frontier logo]()
$210
Best flights from Maryland to IllinoisDiscover carefully curated flight deals from Maryland to Illinois that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 15, 2026.
Discover carefully curated flight deals from Maryland to Illinois that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 15, 2026.
This Delta deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/266:15 am
PHL
- ORD
1 stop5h 22m
Delta
Tue 9/296:40 am
ORD
- PHL
1 stop7h 05m
Delta
Deal found 6/11![Delta logo]()
$224
This Southwest deal was found by Cheapflights users on 6/11. 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.
Mon 8/244:25 pm
BWI
- MDW
1 stop4h 20m
Southwest
Wed 8/2612:35 pm
MDW
- BWI
1 stop3h 05m
Southwest
Deal found 6/11![Southwest logo]()
$226
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.
Mon 7/277:15 am
DCA
- ORD
Nonstop2h 13m
United Airlines
Wed 7/297:00 am
ORD
- DCA
Nonstop1h 59m
United Airlines
Deal found 6/10![United Airlines logo]()
$247
This JetBlue deal was found by Cheapflights users on 6/13. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/111:25 pm
DCA
- ORD
1 stop7h 00m
JetBlue
Sat 8/151:55 pm
ORD
- DCA
1 stop6h 55m
JetBlue
Deal found 6/13![JetBlue logo]()
$263
This Delta deal was found by Cheapflights users on 6/11. 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 10/142:12 pm
PHL
- ORD
1 stop7h 08m
Delta
Sat 10/175:45 pm
ORD
- PHL
1 stop4h 17m
Delta
Deal found 6/11![Delta logo]()
$224
This Southwest deal was found by Cheapflights users on 6/14. 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.
Wed 7/156:30 pm
BWI
- MDW
Nonstop2h 05m
Southwest
Sat 7/188:10 pm
MDW
- BWI
Nonstop1h 55m
Southwest
Deal found 6/14![Southwest logo]()
$229
This United Airlines deal was found by Cheapflights users on 6/11. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/201:00 pm
DCA
- ORD
Nonstop2h 18m
United Airlines
Wed 7/226:00 am
ORD
- DCA
Nonstop1h 54m
United Airlines
Deal found 6/11![United Airlines logo]()
$247
This Delta deal was found by Cheapflights users on 6/13. 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 8/155:36 pm
BWI
- ORD
1 stop3h 54m
Delta
Wed 8/198:48 am
ORD
- BWI
1 stop7h 01m
Delta
Deal found 6/13![Delta logo]()
$234
This Southwest deal was found by Cheapflights users on 6/11. 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.
Fri 9/46:30 am
BWI
- MDW
Nonstop2h 00m
Southwest
Tue 9/811:55 am
MDW
- BWI
1 stop3h 30m
Southwest
Deal found 6/11![Southwest logo]()
$237
This United Airlines deal was found by Cheapflights users on 6/11. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/275:42 pm
IAD
- ORD
Nonstop2h 08m
United Airlines
Sat 8/13:53 pm
ORD
- IAD
Nonstop2h 09m
United Airlines
Deal found 6/11![United Airlines logo]()
$247
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.
Wed 9/162:45 pm
PHL
- MDW
2 stops6h 25m
Southwest
Fri 9/186:45 pm
MDW
- PHL
Nonstop1h 55m
Southwest
Deal found 6/10![Southwest logo]()
$238
This Delta deal was found by Cheapflights users on 6/11. 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.
Mon 8/246:15 am
BWI
- ORD
1 stop5h 27m
Delta
Sat 8/295:30 am
ORD
- BWI
1 stop6h 37m
Delta
Deal found 6/11![Delta logo]()
$239
This United Airlines deal was found by Cheapflights users on 6/11. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/46:16 am
IAD
- ORD
Nonstop2h 14m
United Airlines
Tue 9/86:30 am
ORD
- IAD
Nonstop1h 58m
United Airlines
Deal found 6/11![United Airlines logo]()
$247
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 9/105:12 pm
PHL
- ORD
1 stop7h 45m
Delta
Mon 9/145:10 pm
ORD
- PHL
1 stop5h 02m
Delta
Deal found 6/10![Delta logo]()
$243
This Southwest deal was found by Cheapflights users on 6/12. 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.
Tue 9/2910:35 am
BWI
- MDW
Nonstop2h 00m
Southwest
Fri 10/28:55 pm
MDW
- BWI
Nonstop1h 45m
Southwest
Deal found 6/12![Southwest logo]()
$243
This United Airlines deal was found by Cheapflights users on 6/11. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/246:30 am
DCA
- ORD
Nonstop2h 16m
United Airlines
Tue 7/286:00 am
ORD
- DCA
Nonstop1h 54m
United Airlines
Deal found 6/11![United Airlines logo]()
$253
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.
Mon 11/96:13 pm
PHL
- MDW
1 stop4h 57m
Delta
Mon 11/1610:35 am
MDW
- PHL
1 stop6h 44m
Delta
Deal found 6/10![Delta logo]()
$243
This Southwest deal was found by Cheapflights users on 6/11. 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.
Fri 10/168:55 pm
BWI
- MDW
Nonstop2h 05m
Southwest
Mon 10/195:10 am
MDW
- BWI
Nonstop1h 45m
Southwest
Deal found 6/11![Southwest logo]()
$250
This United Airlines deal was found by Cheapflights users on 6/11. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/2410:20 pm
IAD
- ORD
Nonstop2h 11m
United Airlines
Tue 7/283:53 pm
ORD
- IAD
Nonstop2h 09m
United Airlines
Deal found 6/11![United Airlines logo]()
$253
This Delta deal was found by Cheapflights users on 6/11. 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 7/2212:33 pm
BWI
- ORD
1 stop6h 56m
Delta
Sat 7/257:00 am
ORD
- BWI
1 stop7h 49m
Delta
Deal found 6/11![Delta logo]()
$248
This Southwest deal was found by Cheapflights users on 6/11. 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.
Mon 7/274:05 pm
BWI
- MDW
Nonstop2h 05m
Southwest
Sat 8/18:10 pm
MDW
- BWI
Nonstop1h 55m
Southwest
Deal found 6/11![Southwest logo]()
$253
This United Airlines deal was found by Cheapflights users on 6/13. 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.
Tue 10/2010:30 am
IAD
- ORD
Nonstop2h 18m
United Airlines
Wed 10/212:37 pm
ORD
- IAD
Nonstop2h 07m
United Airlines
Deal found 6/13![United Airlines logo]()
$257
This Delta deal was found by Cheapflights users on 6/14. 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.
Wed 11/257:40 pm
BWI
- ORD
1 stop5h 10m
Delta
Tue 12/15:55 pm
ORD
- BWI
1 stop5h 31m
Delta
Deal found 6/14![Delta logo]()
$249
This United Airlines deal was found by Cheapflights users on 6/12. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/228:16 am
BWI
- ORD
Nonstop2h 14m
United Airlines
Wed 7/229:20 pm
ORD
- BWI
Nonstop2h 08m
United Airlines
Deal found 6/12![United Airlines logo]()
$257
This Southwest deal was found by Cheapflights users on 6/14. 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.
Wed 7/1511:45 am
DCA
- MDW
2 stops6h 20m
Southwest
Wed 7/294:35 pm
MDW
- DCA
1 stop6h 00m
Southwest
Deal found 6/14![Southwest logo]()
$258
This Delta deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/15:28 pm
PHL
- ORD
1 stop4h 03m
Delta
Tue 8/45:30 am
ORD
- PHL
1 stop6h 56m
Delta
Deal found 6/11![Delta logo]()
$256
This Southwest deal was found by Cheapflights users on 6/15. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/124:35 pm
DCA
- MDW
Nonstop2h 00m
Southwest
Fri 8/148:15 am
MDW
- DCA
2 stops6h 35m
Southwest
Deal found 6/15![Southwest logo]()
$258
This United Airlines deal was found by Cheapflights users on 6/11. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/256:15 am
PHL
- ORD
1 stop4h 23m
United Airlines
Mon 9/287:00 am
ORD
- PHL
Nonstop2h 11m
United Airlines
Deal found 6/11![United Airlines logo]()
$264
This Delta deal was found by Cheapflights users on 6/13. 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.
Mon 7/135:46 pm
IAD
- MDW
1 stop5h 29m
Delta
Wed 7/156:00 am
MDW
- IAD
1 stop4h 37m
Delta
Deal found 6/13![Delta logo]()
$257
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.
Mon 7/278:55 pm
BWI
- MDW
Nonstop2h 05m
Southwest
Wed 7/297:50 am
MDW
- BWI
1 stop3h 10m
Southwest
Deal found 6/10![Southwest logo]()
$259
Last-minute flights from Maryland to IllinoisDiscover last-minute flight deals from Maryland to Illinois. Data last updated June 15, 2026 and is based on user searches.
Discover last-minute flight deals from Maryland to Illinois. Data last updated June 15, 2026 and is based on user searches.
This Expedia 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/215:06 pm
PHL
- ORD
Nonstop2h 41m
Frontier
Fri 6/268:00 pm
ORD
- PHL
Nonstop2h 32m
Frontier
Deal found 6/10![Frontier logo]()
$208
This Expedia 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/225:06 pm
PHL
- ORD
Nonstop2h 41m
Multiple Airlines
Thu 6/2510:56 am
ORD
- PHL
1 stop8h 04m
Multiple Airlines
Deal found 6/10![Multiple Airlines logo]()
$204
This Super.com deal was found by Cheapflights users on 6/12. 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.
Sat 6/275:06 pm
PHL
- ORD
Nonstop2h 41m
Frontier
Mon 6/298:00 pm
ORD
- PHL
Nonstop2h 32m
Frontier
Deal found 6/12![Frontier logo]()
$210
This JetBlue deal was found by Cheapflights users on 6/14. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/48:28 am
PHL
- ORD
1 stop5h 32m
JetBlue
Tue 7/710:56 am
ORD
- PHL
1 stop8h 09m
JetBlue
Deal found 6/14![JetBlue logo]()
$203
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 7/74:30 pm
PHL
- MDW
1 stop6h 33m
Frontier
Wed 7/812:11 pm
MDW
- PHL
1 stop9h 17m
Frontier
Deal found 6/10![Frontier logo]()
$216
This Super.com deal was found by Cheapflights users on 6/11. 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.
Thu 7/96:05 pm
PHL
- ORD
Nonstop2h 42m
Frontier
Thu 7/168:52 pm
ORD
- PHL
Nonstop2h 23m
Frontier
Deal found 6/11![Frontier logo]()
$206
This Booking.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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/1111:06 am
PHL
- ORD
1 stop19h 31m
Frontier
Mon 7/138:58 pm
ORD
- PHL
Nonstop2h 23m
Frontier
Deal found 6/10![Frontier logo]()
$212
This Frontier deal was found by Cheapflights users on 6/12. 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.
Sun 7/126:05 pm
PHL
- ORD
Nonstop2h 42m
Frontier
Thu 7/168:52 pm
ORD
- PHL
Nonstop2h 23m
Frontier
Deal found 6/12![Frontier logo]()
$209
This Frontier 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/158:30 am
PHL
- ORD
1 stop12h 23m
Frontier
Thu 7/168:52 pm
ORD
- PHL
Nonstop2h 23m
Frontier
Deal found 6/10![Frontier logo]()
$211
This CheapOair 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/186:05 pm
PHL
- ORD
Nonstop2h 42m
Multiple Airlines
Tue 7/2110:56 am
ORD
- PHL
1 stop8h 04m
Multiple Airlines
Deal found 6/10![Multiple Airlines logo]()
$213
This CheapOair deal was found by Cheapflights users on 6/13. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/186:05 pm
PHL
- ORD
Nonstop2h 42m
Multiple Airlines
Sat 7/251:09 pm
ORD
- PHL
1 stop5h 51m
Multiple Airlines
Deal found 6/13![Multiple Airlines logo]()
$214
This Super.com deal was found by Cheapflights users on 6/11. 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.
Thu 7/236:05 pm
PHL
- ORD
Nonstop2h 42m
Frontier
Sat 7/258:52 pm
ORD
- PHL
Nonstop2h 23m
Frontier
Deal found 6/11![Frontier logo]()
$207
One-way flights from Maryland to IllinoisSearch for one-way flight options from Maryland to Illinois. Find affordable one-way fares based on user searches. Data last updated June 15, 2026.
Search for one-way flight options from Maryland to Illinois. Find affordable one-way fares based on user searches. Data last updated June 15, 2026.
This Trip.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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/138:30 am
PHL
- STL
1 stop10h 07m
Frontier
Deal found 6/10![Frontier logo]()
$92
This Trip.com deal was found by Cheapflights users on 6/11. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/98:30 am
PHL
- STL
1 stop10h 07m
Frontier
Deal found 6/11![Frontier logo]()
$93
This Kiwi.com deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/104:40 pm
PHL
- STL
1 stop25h 57m
Frontier
Deal found 6/12![Frontier logo]()
$94
This Kiwi.com deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/244:40 pm
PHL
- STL
1 stop17h 17m
Frontier
Deal found 6/11![Frontier logo]()
$95
This Kiwi.com deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/176:11 pm
PHL
- ORD
Nonstop2h 42m
Frontier
Deal found 6/12![Frontier logo]()
$96
This Trip.com deal was found by Cheapflights users on 6/12. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/196:05 pm
PHL
- ORD
Nonstop2h 42m
Frontier
Deal found 6/12![Frontier logo]()
$97
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.
Fri 8/74:40 pm
PHL
- STL
1 stop17h 17m
Frontier
Deal found 6/10![Frontier logo]()
$97
This Super.com deal was found by Cheapflights users on 6/13. 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.
Sat 7/186:05 pm
PHL
- ORD
Nonstop2h 42m
Frontier
Deal found 6/13![Frontier logo]()
$98
This Kiwi.com deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/36:30 am
PHL
- STL
1 stop27h 22m
Frontier
Deal found 6/12![Frontier logo]()
$98
This United Airlines deal was found by Cheapflights users on 6/11. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/301:00 pm
DCA
- ORD
Nonstop2h 19m
United Airlines
Deal found 6/11![United Airlines logo]()
$99
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.
Wed 7/810:20 pm
IAD
- ORD
Nonstop2h 11m
United Airlines
Deal found 6/10![United Airlines logo]()
$99
This Delta deal was found by Cheapflights users on 6/13. 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.
Wed 7/86:00 am
IAD
- MDW
1 stop4h 13m
Delta
Deal found 6/13![Delta logo]()
$99
Find flight deals from Maryland to Illinois
Keep the following information in mind while searching for Maryland to Illinois flight deals. Data was last updated June 15, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $201 (Frontier) |
One-way from | $92 (Trip.com) |
Popular in | June |
Cheapest in | September |
Average price | $354 |
Good round-trip deal | $319 or less |
Good one-way deal | $188 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from Maryland to Illinois 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 15, 2026.
Use the filters below to find and compare flights from Maryland to Illinois that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
PhiladelphiaChicago
PHL - ORD
PHLORD
Philadelphia
Sat 9/26
6:15 am-10:37 am
1 stop5h 22m
Chicago O'Hare Intl
Tue 9/29
6:40 am-2:45 pm
1 stop7h 05m
$224
PhiladelphiaChicago
PHL - ORD
PHLORD
Philadelphia
Wed 10/14
2:12 pm-8:20 pm
1 stop7h 08m
Chicago O'Hare Intl
Sat 10/17
5:45 pm-11:02 pm
1 stop4h 17m
$224
BaltimoreChicago
BWI - MDW
BWIMDW
Baltimore/Washington
Mon 8/24
4:25 pm-7:45 pm
1 stop4h 20m
Chicago Midway
Wed 8/26
12:35 pm-4:40 pm
1 stop3h 05m
$226
BaltimoreChicago
BWI - MDW
BWIMDW
Baltimore/Washington
Wed 7/15
6:30 pm-7:35 pm
Nonstop2h 05m
Chicago Midway
Sat 7/18
8:10 pm-11:05 pm
Nonstop1h 55m
$229
BaltimoreChicago
BWI - ORD
BWIORD
Baltimore/Washington
Sat 8/15
5:36 pm-8:30 pm
1 stop3h 54m
Chicago O'Hare Intl
Wed 8/19
8:48 am-4:49 pm
1 stop7h 01m
$234
BaltimoreChicago
BWI - MDW
BWIMDW
Baltimore/Washington
Fri 9/4
6:30 am-7:30 am
Nonstop2h 00m
Chicago Midway
Tue 9/8
11:55 am-4:25 pm
1 stop3h 30m
$237
PhiladelphiaChicago
PHL - MDW
PHLMDW
Philadelphia
Wed 9/16
2:45 pm-8:10 pm
2 stops6h 25m
Chicago Midway
Fri 9/18
6:45 pm-9:40 pm
Nonstop1h 55m
$238
BaltimoreChicago
BWI - ORD
BWIORD
Baltimore/Washington
Mon 8/24
6:15 am-10:42 am
1 stop5h 27m
Chicago O'Hare Intl
Sat 8/29
5:30 am-1:07 pm
1 stop6h 37m
$239
PhiladelphiaChicago
PHL - ORD
PHLORD
Philadelphia
Thu 9/10
5:12 pm-11:57 pm
1 stop7h 45m
Chicago O'Hare Intl
Mon 9/14
5:10 pm-11:12 pm
1 stop5h 02m
$243
Quickest round-trip
BaltimoreChicago
BWI - MDW
BWIMDW
Baltimore/Washington
Tue 9/29
10:35 am-11:35 am
Nonstop2h 00m
Chicago Midway
Fri 10/2
8:55 pm-11:40 pm
Nonstop1h 45m
$243
Showing 1-10 of 60 resultsSorted by cheapest first
Best time to book a flight from Maryland to Illinois
Have a flexible travel schedule? Discover the best time to fly to Illinois from Maryland with our price prediction graph.
PHL-STL
DCA-ORD
BWI-MDW
PHL-ORD
IAD-ORD
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 Illinois
USMD-USIL
PHL-STL
DCA-ORD
BWI-MDW
PHL-ORD
What is the cheapest month to book a flight from Maryland to Illinois?
Currently, February is the cheapest month in which you can book a flight from Maryland to Illinois (average of $43). Flying from Maryland to Illinois in August is currently the most expensive (average of $692). 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 IL?
Find hourly flight availability from Maryland to Illinois. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated June 15, 2026.
Unlike in the morning, when flights are generally more expensive, you can save up to 33% on flights from Maryland to Illinois by exploring options for tickets in the afternoon.
Weekly flight availability from Maryland to Illinois
Explore weekly flight availability from Maryland to Illinois. 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 15, 2026.
The most flights from USMD to USIL are scheduled on a Monday (21 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (17 on average).
How much does it cost to fly round-trip from Maryland to Illinois?
How far ahead should I book a flight from Maryland to Illinois?
The price you pay for your flight from Maryland to Illinois may vary depending on when you book. For the best chance of a lower fare, look to book 67 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.
What is the cheapest day to fly from Maryland to Illinois?
Use this chart to determine the cheapest time to fly round-trip from Maryland to Illinois. Price data was last updated on June 13, 2026.
Travelers seeking maximum savings on their Maryland to Illinois flight should consider departing on Friday at noon when fares are most often at their lowest. Saturday at noon flights should be avoided if possible as fares are typically the most expensive at this time.
Reviews of airlines servicing Illinois
Get insights into the airlines that provide service to Illinois. 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 Illinois. Reviews last updated June 15, 2026.
Read through reviews of airlines operating flights from Maryland to Illinois, 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.
Comfort
8.0
Boarding
8.1
Entertainment
7.5
Crew
8.6
Food
7.0
Overall
7.9
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Comfort
8.0
Boarding
8.1
Entertainment
7.5
Crew
8.6
Food
7.0
Overall
7.9
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Comfort
8.0
Boarding
8.1
Entertainment
7.5
Crew
8.6
Food
7.0
Overall
7.9
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Comfort
8.0
Boarding
8.1
Entertainment
7.5
Crew
8.6
Food
7.0
Overall
7.9
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Comfort
8.0
Boarding
8.1
Entertainment
7.5
Crew
8.6
Food
7.0
Overall
7.9
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 Maryland to Illinois. 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 Maryland to Illinois
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Illinois by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Maryland to Illinois by cabin class
Find flights from Maryland to Illinois, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Maryland and Illinois flights
Browse other Maryland and Illinois flight options. Last updated on June 15, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Find a return flight route from Illinois
Find the right flight back to Maryland after your stay in Illinois
Maryland to Illinois flights
Consider these flights traveling from Maryland to Illinois.
Top 4 airlines flying from Maryland to Illinois
Discover the top 4 airlines that operate flights from Maryland to Illinois. 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 15, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$57 | Average$167 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$117 | Average$278 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$131 | Average$414 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$158 | Average$335 | FlexibilityNo cancel fee | On-time71% |