$63+ 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 6/4. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — BWI
Jun 4 — Jun 111
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 5, 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 5, 2026.
This Priceline deal was found by Cheapflights users on 5/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/236:30 pm
STL
- PHL
1 stop10h 51m
Frontier
Tue 5/266:10 pm
PHL
- STL
1 stop6h 47m
Frontier
Deal found 5/2![Frontier logo]()
$140
This Expedia deal was found by Cheapflights users on 5/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/44:19 pm
STL
- PHL
1 stop7h 21m
Frontier
Sun 6/76:10 am
PHL
- STL
1 stop9h 21m
Frontier
Deal found 5/4![Frontier logo]()
$180
This Expedia deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/194:05 pm
ORD
- BWI
1 stop27h 13m
Frontier
Tue 5/269:13 pm
BWI
- ORD
1 stop11h 42m
Frontier
Deal found 4/30![Frontier logo]()
$181
This Booking.com deal was found by Cheapflights users on 5/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/236:30 pm
STL
- PHL
1 stop10h 51m
Frontier
Fri 5/2910:40 am
PHL
- STL
1 stop10h 31m
Frontier
Deal found 5/3![Frontier logo]()
$181
This Kiwi.com deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/286:55 am
ORD
- BWI
1 stop9h 57m
Multiple Airlines
Wed 6/101:10 pm
BWI
- ORD
1 stop11h 05m
Multiple Airlines
Deal found 4/30![Multiple Airlines logo]()
$182
This Southwest deal was found by Cheapflights users on 5/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/37:45 am
MDW
- BWI
1 stop3h 05m
Southwest
Wed 6/107:40 am
BWI
- MDW
Nonstop2h 00m
Southwest
Deal found 5/4![Southwest logo]()
$183
This Kiwi.com deal was found by Cheapflights users on 5/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/231:29 pm
ORD
- BWI
1 stop17h 06m
Frontier
Tue 7/78:36 am
BWI
- ORD
1 stop12h 17m
Frontier
Deal found 5/4![Frontier logo]()
$183
This Kiwi.com deal was found by Cheapflights users on 5/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/16:00 am
MDW
- BWI
1 stop9h 22m
Frontier
Tue 6/97:44 pm
BWI
- MDW
2 stops27h 27m
Frontier
Deal found 5/4![Frontier logo]()
$184
This Kiwi.com deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/21:29 pm
ORD
- BWI
2 stops9h 00m
Multiple Airlines
Tue 6/96:27 pm
BWI
- ORD
1 stop14h 36m
Multiple Airlines
Deal found 4/30![Multiple Airlines logo]()
$184
This Frontier deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/128:00 pm
ORD
- PHL
Nonstop2h 32m
Frontier
Mon 6/156:00 am
PHL
- ORD
1 stop7h 24m
Frontier
Deal found 4/30![Frontier logo]()
$184
This Frontier deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/226:00 am
MDW
- PHL
1 stop5h 25m
Frontier
Sun 5/246:10 am
PHL
- MDW
1 stop9h 02m
Frontier
Deal found 4/30![Frontier logo]()
$185
This Frontier deal was found by Cheapflights users on 5/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/2311:59 am
MDW
- BWI
1 stop9h 58m
Frontier
Sat 5/306:45 am
BWI
- MDW
1 stop5h 19m
Frontier
Deal found 5/1![Frontier logo]()
$185
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 5, 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 5, 2026.
This Southwest deal was found by Cheapflights users on 5/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/212:50 pm
MDW
- BWI
1 stop3h 35m
Southwest
Tue 6/94:50 pm
BWI
- MDW
Nonstop2h 05m
Southwest
Deal found 5/4![Southwest logo]()
$183
This Delta deal was found by Cheapflights users on 5/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/175:22 pm
ORD
- BWI
1 stop4h 56m
Delta
Wed 6/249:39 am
BWI
- ORD
1 stop4h 25m
Delta
Deal found 5/3![Delta logo]()
$197
This United Airlines deal was found by Cheapflights users on 5/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/16:20 am
ORD
- BWI
Nonstop1h 57m
United Airlines
Tue 6/96:20 am
BWI
- ORD
Nonstop2h 15m
United Airlines
Deal found 5/4![United Airlines logo]()
$212
This JetBlue deal was found by Cheapflights users on 5/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/268:20 pm
ORD
- PHL
1 stop10h 18m
JetBlue
Mon 6/299:29 pm
PHL
- ORD
1 stop13h 37m
JetBlue
Deal found 5/1![JetBlue logo]()
$360
This Southwest deal was found by Cheapflights users on 5/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/1712:50 pm
MDW
- BWI
1 stop4h 05m
Southwest
Wed 6/248:30 pm
BWI
- MDW
Nonstop2h 05m
Southwest
Deal found 5/3![Southwest logo]()
$187
This United Airlines deal was found by Cheapflights users on 5/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/410:48 am
ORD
- BWI
Nonstop2h 06m
United Airlines
Tue 6/167:05 pm
BWI
- ORD
Nonstop2h 24m
United Airlines
Deal found 5/4![United Airlines logo]()
$212
This Delta deal was found by Cheapflights users on 5/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/37:07 am
ORD
- DCA
1 stop4h 36m
Delta
Sat 6/66:05 am
DCA
- ORD
1 stop3h 40m
Delta
Deal found 5/4![Delta logo]()
$228
This Southwest deal was found by Cheapflights users on 5/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/19:00 am
MDW
- BWI
Nonstop1h 50m
Southwest
Tue 6/23:30 pm
BWI
- MDW
1 stop5h 20m
Southwest
Deal found 5/4![Southwest logo]()
$222
This Delta deal was found by Cheapflights users on 5/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/282:59 pm
ORD
- DCA
1 stop4h 46m
Delta
Tue 6/210:19 am
DCA
- ORD
1 stop7h 37m
Delta
Deal found 5/3![Delta logo]()
$228
This United Airlines deal was found by Cheapflights users on 5/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/156:00 am
ORD
- DCA
Nonstop1h 54m
United Airlines
Wed 6/177:15 am
DCA
- ORD
Nonstop2h 14m
United Airlines
Deal found 5/4![United Airlines logo]()
$233
This Delta deal was found by Cheapflights users on 5/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/275:12 pm
MDW
- IAD
1 stop6h 39m
Delta
Sat 5/306:08 am
IAD
- MDW
1 stop4h 51m
Delta
Deal found 5/2![Delta logo]()
$228
This United Airlines deal was found by Cheapflights users on 5/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/16:30 am
ORD
- IAD
Nonstop1h 54m
United Airlines
Mon 7/65:42 pm
IAD
- ORD
Nonstop2h 08m
United Airlines
Deal found 5/2![United Airlines logo]()
$233
This Southwest deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/107:35 pm
MDW
- BWI
Nonstop1h 50m
Southwest
Wed 6/175:05 pm
BWI
- MDW
1 stop3h 45m
Southwest
Deal found 4/30![Southwest logo]()
$239
This Delta deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/16:36 pm
MDW
- IAD
1 stop3h 20m
Delta
Wed 6/36:08 am
IAD
- MDW
1 stop4h 52m
Delta
Deal found 4/30![Delta logo]()
$228
This United Airlines deal was found by Cheapflights users on 5/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/19:25 pm
ORD
- BWI
Nonstop2h 08m
United Airlines
Tue 6/210:40 am
BWI
- ORD
Nonstop2h 16m
United Airlines
Deal found 5/4![United Airlines logo]()
$235
This Southwest deal was found by Cheapflights users on 5/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/281:50 pm
MDW
- DCA
Nonstop1h 45m
Southwest
Sat 5/306:40 am
DCA
- MDW
Nonstop2h 05m
Southwest
Deal found 5/2![Southwest logo]()
$239
This Delta deal was found by Cheapflights users on 5/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/285:30 am
ORD
- IAD
1 stop7h 40m
Delta
Tue 6/212:37 pm
IAD
- ORD
1 stop7h 04m
Delta
Deal found 5/4![Delta logo]()
$228
This United Airlines deal was found by Cheapflights users on 5/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/56:20 pm
ORD
- BWI
Nonstop2h 06m
United Airlines
Wed 6/177:05 pm
BWI
- ORD
Nonstop2h 24m
United Airlines
Deal found 5/4![United Airlines logo]()
$243
This Southwest deal was found by Cheapflights users on 5/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/256:05 am
MDW
- DCA
Nonstop1h 50m
Southwest
Sat 5/3012:15 pm
DCA
- MDW
1 stop3h 30m
Southwest
Deal found 5/4![Southwest logo]()
$245
This United Airlines deal was found by Cheapflights users on 5/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/109:25 pm
ORD
- BWI
Nonstop2h 08m
United Airlines
Mon 6/158:25 am
BWI
- ORD
Nonstop2h 14m
United Airlines
Deal found 5/1![United Airlines logo]()
$243
This Southwest deal was found by Cheapflights users on 5/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/175:05 pm
MDW
- DCA
Nonstop1h 50m
Southwest
Wed 6/2411:45 am
DCA
- MDW
2 stops6h 20m
Southwest
Deal found 5/3![Southwest logo]()
$248
This Delta deal was found by Cheapflights users on 5/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/55:20 pm
ORD
- DCA
1 stop4h 49m
Delta
Tue 8/1112:23 pm
DCA
- ORD
1 stop5h 01m
Delta
Deal found 5/4![Delta logo]()
$253
This United Airlines deal was found by Cheapflights users on 5/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/12:30 pm
ORD
- BWI
Nonstop2h 06m
United Airlines
Mon 7/65:32 pm
BWI
- ORD
Nonstop2h 23m
United Airlines
Deal found 5/2![United Airlines logo]()
$243
This Southwest deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/2812:45 pm
MDW
- BWI
1 stop3h 20m
Southwest
Sat 5/3012:10 pm
BWI
- MDW
Nonstop2h 00m
Southwest
Deal found 4/30![Southwest logo]()
$253
This Delta deal was found by Cheapflights users on 5/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/15:22 pm
ORD
- DCA
1 stop4h 37m
Delta
Wed 7/812:27 pm
DCA
- ORD
1 stop5h 45m
Delta
Deal found 5/1![Delta logo]()
$257
This United Airlines deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/76:00 am
ORD
- DCA
Nonstop1h 54m
United Airlines
Tue 8/117:30 am
DCA
- ORD
Nonstop2h 17m
United Airlines
Deal found 4/30![United Airlines logo]()
$243
This Delta deal was found by Cheapflights users on 5/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/137:01 am
ORD
- IAD
1 stop3h 53m
Delta
Tue 6/168:29 am
IAD
- ORD
1 stop5h 07m
Delta
Deal found 5/1![Delta logo]()
$257
This Southwest deal was found by Cheapflights users on 5/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/246:40 am
MDW
- BWI
Nonstop1h 50m
Southwest
Mon 5/256:05 am
BWI
- MDW
Nonstop2h 05m
Southwest
Deal found 5/3![Southwest logo]()
$262
This United Airlines deal was found by Cheapflights users on 5/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/2411:07 am
ORD
- IAD
Nonstop2h 05m
United Airlines
Fri 6/2610:20 pm
IAD
- ORD
Nonstop2h 11m
United Airlines
Deal found 5/4![United Airlines logo]()
$243
This Delta deal was found by Cheapflights users on 5/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/305:19 pm
ORD
- DCA
1 stop4h 40m
Delta
Sat 6/66:15 pm
DCA
- ORD
1 stop5h 48m
Delta
Deal found 5/2![Delta logo]()
$259
Last-minute flights from Illinois to MarylandDiscover last-minute flight deals from Illinois to Maryland. Data last updated May 5, 2026 and is based on user searches.
Discover last-minute flight deals from Illinois to Maryland. Data last updated May 5, 2026 and is based on user searches.
This Expedia deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/194:05 pm
ORD
- BWI
1 stop27h 13m
Frontier
Tue 5/269:13 pm
BWI
- ORD
1 stop11h 42m
Frontier
Deal found 4/30![Frontier logo]()
$181
This Frontier deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/226:00 am
MDW
- PHL
1 stop5h 25m
Frontier
Sun 5/246:10 am
PHL
- MDW
1 stop9h 02m
Frontier
Deal found 4/30![Frontier logo]()
$185
This Priceline deal was found by Cheapflights users on 5/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/236:30 pm
STL
- PHL
1 stop10h 51m
Frontier
Tue 5/266:10 pm
PHL
- STL
1 stop6h 47m
Frontier
Deal found 5/2![Frontier logo]()
$140
This Booking.com deal was found by Cheapflights users on 5/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/236:30 pm
STL
- PHL
1 stop10h 51m
Frontier
Fri 5/2910:40 am
PHL
- STL
1 stop10h 31m
Frontier
Deal found 5/3![Frontier logo]()
$181
This Frontier deal was found by Cheapflights users on 5/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/2311:59 am
MDW
- BWI
1 stop9h 58m
Frontier
Sat 5/306:45 am
BWI
- MDW
1 stop5h 19m
Frontier
Deal found 5/1![Frontier logo]()
$185
This Kiwi.com deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/286:55 am
ORD
- BWI
1 stop9h 57m
Multiple Airlines
Wed 6/101:10 pm
BWI
- ORD
1 stop11h 05m
Multiple Airlines
Deal found 4/30![Multiple Airlines logo]()
$182
This Kiwi.com deal was found by Cheapflights users on 5/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/16:00 am
MDW
- BWI
1 stop9h 22m
Frontier
Tue 6/97:44 pm
BWI
- MDW
2 stops27h 27m
Frontier
Deal found 5/4![Frontier logo]()
$184
This Kiwi.com deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/21:29 pm
ORD
- BWI
2 stops9h 00m
Multiple Airlines
Tue 6/96:27 pm
BWI
- ORD
1 stop14h 36m
Multiple Airlines
Deal found 4/30![Multiple Airlines logo]()
$184
This Southwest deal was found by Cheapflights users on 5/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/37:45 am
MDW
- BWI
1 stop3h 05m
Southwest
Wed 6/107:40 am
BWI
- MDW
Nonstop2h 00m
Southwest
Deal found 5/4![Southwest logo]()
$183
This Expedia deal was found by Cheapflights users on 5/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/44:19 pm
STL
- PHL
1 stop7h 21m
Frontier
Sun 6/76:10 am
PHL
- STL
1 stop9h 21m
Frontier
Deal found 5/4![Frontier logo]()
$180
This Frontier deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/128:00 pm
ORD
- PHL
Nonstop2h 32m
Frontier
Mon 6/156:00 am
PHL
- ORD
1 stop7h 24m
Frontier
Deal found 4/30![Frontier logo]()
$184
This Kiwi.com deal was found by Cheapflights users on 5/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/231:29 pm
ORD
- BWI
1 stop17h 06m
Frontier
Tue 7/78:36 am
BWI
- ORD
1 stop12h 17m
Frontier
Deal found 5/4![Frontier logo]()
$183
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 5, 2026.
Search for one-way flight options from Illinois to Maryland. Find affordable one-way fares based on user searches. Data last updated May 5, 2026.
This Kiwi.com deal was found by Cheapflights users on 5/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/46:33 pm
STL
- IAD
1 stop14h 39m
Frontier
Deal found 5/4![Frontier logo]()
$63
This Kiwi.com deal was found by Cheapflights users on 5/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/275:27 pm
STL
- IAD
1 stop21h 54m
Frontier
Deal found 5/4![Frontier logo]()
$65
This Frontier deal was found by Cheapflights users on 5/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/235:27 pm
STL
- IAD
1 stop4h 42m
Frontier
Deal found 5/2![Frontier logo]()
$70
This Kiwi.com deal was found by Cheapflights users on 5/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/305:27 pm
STL
- IAD
1 stop15h 45m
Frontier
Deal found 5/4![Frontier logo]()
$71
This Frontier deal was found by Cheapflights users on 5/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/266:33 pm
STL
- PHL
1 stop11h 39m
Frontier
Deal found 5/1![Frontier logo]()
$76
This Super.com deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/97:52 pm
ORD
- PHL
Nonstop2h 26m
Frontier
Deal found 4/30![Frontier logo]()
$80
This Super.com deal was found by Cheapflights users on 5/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure 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 5/1![Frontier logo]()
$88
This Super.com deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/276:00 am
MDW
- PHL
1 stop5h 25m
Frontier
Deal found 4/30![Frontier logo]()
$89
This United Airlines deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/269:25 pm
ORD
- BWI
Nonstop2h 08m
United Airlines
Deal found 4/30![United Airlines logo]()
$89
This Super.com deal was found by Cheapflights users on 5/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/154:19 pm
STL
- PHL
1 stop6h 10m
Frontier
Deal found 5/1![Frontier logo]()
$89
This Frontier deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/227:52 pm
ORD
- PHL
Nonstop2h 26m
Frontier
Deal found 4/30![Frontier logo]()
$89
This Super.com deal was found by Cheapflights users on 5/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/165:27 pm
STL
- IAD
1 stop4h 42m
Frontier
Deal found 5/2![Frontier logo]()
$89
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 5, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $140 (Priceline) |
One-way from | $63 (Kiwi.com) |
Popular in | March |
Cheapest in | August |
Average price | $269 |
Good round-trip deal | $241 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 5, 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
ChicagoBaltimore
MDW - BWI
MDWBWI
Chicago Midway
Tue 6/2
12:50 pm-5:25 pm
1 stop3h 35m
Baltimore/Washington
Tue 6/9
4:50 pm-5:55 pm
Nonstop2h 05m
$183
ChicagoBaltimore
MDW - BWI
MDWBWI
Chicago Midway
Wed 6/17
12:50 pm-5:55 pm
1 stop4h 05m
Baltimore/Washington
Wed 6/24
8:30 pm-9:35 pm
Nonstop2h 05m
$187
ChicagoBaltimore
ORD - BWI
ORDBWI
Chicago O'Hare Intl
Wed 6/17
5:22 pm-11:18 pm
1 stop4h 56m
Baltimore/Washington
Wed 6/24
9:39 am-1:04 pm
1 stop4h 25m
$197
ChicagoBaltimore
ORD - BWI
ORDBWI
Chicago O'Hare Intl
Mon 6/1
6:20 am-9:17 am
Nonstop1h 57m
Baltimore/Washington
Tue 6/9
6:20 am-7:35 am
Nonstop2h 15m
$212
ChicagoBaltimore
ORD - BWI
ORDBWI
Chicago O'Hare Intl
Thu 6/4
10:48 am-1:54 pm
Nonstop2h 06m
Baltimore/Washington
Tue 6/16
7:05 pm-8:29 pm
Nonstop2h 24m
$212
ChicagoBaltimore
MDW - BWI
MDWBWI
Chicago Midway
Mon 6/1
9:00 am-11:50 am
Nonstop1h 50m
Baltimore/Washington
Tue 6/2
3:30 pm-7:50 pm
1 stop5h 20m
$222
ChicagoWashington, D.C.
ORD - DCA
ORDDCA
Chicago O'Hare Intl
Wed 6/3
7:07 am-12:43 pm
1 stop4h 36m
Washington, D.C. Reagan-National
Sat 6/6
6:05 am-8:45 am
1 stop3h 40m
$228
ChicagoWashington, D.C.
ORD - DCA
ORDDCA
Chicago O'Hare Intl
Thu 5/28
2:59 pm-8:45 pm
1 stop4h 46m
Washington, D.C. Reagan-National
Tue 6/2
10:19 am-4:56 pm
1 stop7h 37m
$228
ChicagoWashington, D.C.
MDW - IAD
MDWIAD
Chicago Midway
Wed 5/27
5:12 pm-12:51 am
1 stop6h 39m
Washington, D.C. Dulles Intl
Sat 5/30
6:08 am-9:59 am
1 stop4h 51m
$228
ChicagoWashington, D.C.
MDW - IAD
MDWIAD
Chicago Midway
Mon 6/1
6:36 pm-10:56 pm
1 stop3h 20m
Washington, D.C. Dulles Intl
Wed 6/3
6:08 am-10:00 am
1 stop4h 52m
$228
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-BWI
ORD-BWI
ORD-PHL
ORD-DCA
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-BWI
ORD-BWI
ORD-PHL
ORD-DCA
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 $555). 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 5, 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 2, 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 5, 2026.
The most flights from USIL to USMD are scheduled on a Monday (22 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (15 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 5, 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.
Overall
7.9
Crew
8.6
Boarding
8.1
Comfort
8.0
Food
7.0
Entertainment
7.5
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Overall
7.9
Crew
8.6
Boarding
8.1
Comfort
8.0
Food
7.0
Entertainment
7.5
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Overall
7.9
Crew
8.6
Boarding
8.1
Comfort
8.0
Food
7.0
Entertainment
7.5
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Overall
7.9
Crew
8.6
Boarding
8.1
Comfort
8.0
Food
7.0
Entertainment
7.5
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Overall
7.9
Crew
8.6
Boarding
8.1
Comfort
8.0
Food
7.0
Entertainment
7.5
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Overall
7.9
Crew
8.6
Boarding
8.1
Comfort
8.0
Food
7.0
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.
Browse thousands of different options on Cheapflights for your next trip
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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 5, 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 5, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$42 | Average$119 | FlexibilityNo cancel fee | On-time65% | |
| Cheapest$57 | Average$160 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$114 | Average$371 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$127 | Average$261 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$148 | Average$412 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$183 | Average$364 | FlexibilityNo cancel fee | On-timeN/A |