$70+ Cheap flights from Baltimore (BWI) 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 4/27. Fares are subject to change and may not be available on all flights or dates of travel.
BWI — ORD
mar 31 — apr 71
1 adult, Economy
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Cheapest flights from Baltimore to IllinoisExplore the most affordable flight options available from Baltimore to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on marzo 1, 2026.
Explore the most affordable flight options available from Baltimore to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on marzo 1, 2026.
This Frontier deal was found by Cheapflights users on 2/26. Clicking the “Pick Dates” 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.
gio 5/74:25 pm
BWI
- ORD
Nonstop2h 26m
Frontier
lun 5/1112:25 pm
ORD
- BWI
Nonstop2h 05m
Frontier
Deal found 2/26![Frontier logo]()
$119
This Super.com deal was found by Cheapflights users on 3/1. 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.
gio 5/74:25 pm
BWI
- ORD
Nonstop2h 26m
Frontier
gio 5/1412:25 pm
ORD
- BWI
Nonstop2h 05m
Frontier
Deal found 3/1![Frontier logo]()
$120
This Booking.com deal was found by Cheapflights users on 2/27. Clicking the “Pick Dates” 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.
gio 4/164:42 pm
BWI
- ORD
Nonstop2h 26m
Frontier
lun 4/2012:20 pm
ORD
- BWI
Nonstop2h 05m
Frontier
Deal found 2/27![Frontier logo]()
$122
This Kiwi.com deal was found by Cheapflights users on 2/26. Clicking the “Pick Dates” 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.
gio 4/166:05 am
BWI
- ORD
1 stop6h 27m
Frontier
mar 4/2110:45 am
ORD
- BWI
1 stop12h 59m
Frontier
Deal found 2/26![Frontier logo]()
$123
This Frontier deal was found by Cheapflights users on 2/26. Clicking the “Pick Dates” 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.
gio 5/74:25 pm
BWI
- ORD
Nonstop2h 26m
Frontier
dom 5/108:24 pm
ORD
- BWI
1 stop11h 36m
Frontier
Deal found 2/26![Frontier logo]()
$124
This Kiwi.com deal was found by Cheapflights users on 2/28. Clicking the “Pick Dates” 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.
mar 4/145:49 pm
BWI
- ORD
1 stop17h 13m
Frontier
mar 4/216:08 pm
ORD
- BWI
1 stop16h 14m
Frontier
Deal found 2/28![Frontier logo]()
$125
This Kiwi.com deal was found by Cheapflights users on 2/27. Clicking the “Pick Dates” 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.
mar 4/2812:17 pm
BWI
- MDW
1 stop8h 14m
Frontier
mar 5/56:00 am
MDW
- BWI
1 stop9h 59m
Frontier
Deal found 2/27![Frontier logo]()
$126
This Kiwi.com deal was found by Cheapflights users on 2/26. Clicking the “Pick Dates” 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.
mar 4/145:49 pm
BWI
- ORD
1 stop17h 13m
Frontier
mer 4/156:08 pm
ORD
- BWI
1 stop12h 54m
Frontier
Deal found 2/26![Frontier logo]()
$126
This Kiwi.com deal was found by Cheapflights users on 2/28. Clicking the “Pick Dates” 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.
mar 4/1412:17 pm
BWI
- MDW
1 stop8h 14m
Frontier
mar 4/216:10 am
MDW
- BWI
1 stop9h 44m
Frontier
Deal found 2/28![Frontier logo]()
$127
This Kiwi.com deal was found by Cheapflights users on 2/26. Clicking the “Pick Dates” 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.
mar 4/1412:17 pm
BWI
- MDW
1 stop8h 14m
Frontier
mer 4/152:15 pm
MDW
- BWI
1 stop9h 29m
Frontier
Deal found 2/26![Frontier logo]()
$128
This Kiwi.com deal was found by Cheapflights users on 2/26. Clicking the “Pick Dates” 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.
lun 4/278:44 pm
BWI
- ORD
1 stop14h 18m
Frontier
mer 4/296:08 pm
ORD
- BWI
1 stop12h 54m
Frontier
Deal found 2/26![Frontier logo]()
$128
This Kiwi.com deal was found by Cheapflights users on 2/27. Clicking the “Pick Dates” 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.
mer 4/14:55 pm
BWI
- ORD
Nonstop2h 23m
Frontier
gio 4/91:19 pm
ORD
- BWI
Nonstop2h 05m
Frontier
Deal found 2/27![Frontier logo]()
$131
Best flights from Baltimore to IllinoisDiscover carefully curated flight deals from Baltimore to Illinois that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated marzo 1, 2026.
Discover carefully curated flight deals from Baltimore to Illinois that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated marzo 1, 2026.
This United Airlines deal was found by Cheapflights users on 2/25. Clicking the “Pick Dates” 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.
sab 4/116:50 pm
BWI
- ORD
Nonstop2h 21m
United Airlines
lun 4/132:30 pm
ORD
- BWI
Nonstop2h 03m
United Airlines
Deal found 2/25![United Airlines logo]()
$161
This Southwest deal was found by Cheapflights users on 2/27. Clicking the “Pick Dates” 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.
gio 5/76:05 am
BWI
- MDW
Nonstop2h 05m
Southwest
dom 5/105:15 am
MDW
- BWI
Nonstop1h 45m
Southwest
Deal found 2/27![Southwest logo]()
$177
This Delta deal was found by Cheapflights users on 2/25. Clicking the “Pick Dates” 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.
sab 4/115:40 am
BWI
- ORD
1 stop4h 30m
Delta
lun 4/135:53 pm
ORD
- BWI
1 stop5h 45m
Delta
Deal found 2/25![Delta logo]()
$181
This American Airlines deal was found by Cheapflights users on 2/27. Clicking the “Pick Dates” 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.
gio 4/165:39 am
BWI
- MLI
1 stop7h 42m
American Airlines
mar 4/215:15 am
MLI
- BWI
1 stop4h 56m
American Airlines
Deal found 2/27![American Airlines logo]()
$260
This Kiwi.com deal was found by Cheapflights users on 2/28. Clicking the “Pick Dates” 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.
ven 7/109:18 am
BWI
- RFD
1 stop10h 42m
Multiple Airlines
lun 7/137:50 pm
RFD
- BWI
1 stop11h 33m
Multiple Airlines
Deal found 2/28![Multiple Airlines logo]()
$287
This United Airlines deal was found by Cheapflights users on 2/26. Clicking the “Pick Dates” 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.
lun 4/203:42 pm
BWI
- ORD
Nonstop2h 18m
United Airlines
gio 4/232:30 pm
ORD
- BWI
Nonstop2h 03m
United Airlines
Deal found 2/26![United Airlines logo]()
$161
This Southwest deal was found by Cheapflights users on 2/25. Clicking the “Pick Dates” 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.
gio 4/1610:45 am
BWI
- MDW
1 stop3h 25m
Southwest
lun 4/209:15 pm
MDW
- BWI
Nonstop1h 50m
Southwest
Deal found 2/25![Southwest logo]()
$197
This Southwest deal was found by Cheapflights users on 2/26. Clicking the “Pick Dates” 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.
lun 4/209:15 pm
BWI
- MDW
Nonstop2h 05m
Southwest
gio 4/2312:45 pm
MDW
- BWI
1 stop3h 20m
Southwest
Deal found 2/26![Southwest logo]()
$197
This Delta deal was found by Cheapflights users on 2/26. Clicking the “Pick Dates” 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.
mar 3/317:14 pm
BWI
- ORD
1 stop5h 40m
Delta
ven 4/35:40 pm
ORD
- BWI
1 stop4h 21m
Delta
Deal found 2/26![Delta logo]()
$227
This United Airlines deal was found by Cheapflights users on 2/25. Clicking the “Pick Dates” 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.
dom 4/266:00 am
BWI
- ORD
Nonstop2h 21m
United Airlines
gio 4/306:00 pm
ORD
- BWI
Nonstop2h 02m
United Airlines
Deal found 2/25![United Airlines logo]()
$209
This Southwest deal was found by Cheapflights users on 2/26. Clicking the “Pick Dates” 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.
gio 4/302:00 pm
BWI
- MDW
Nonstop2h 05m
Southwest
lun 5/49:15 pm
MDW
- BWI
Nonstop1h 50m
Southwest
Deal found 2/26![Southwest logo]()
$215
This Delta deal was found by Cheapflights users on 2/27. Clicking the “Pick Dates” 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.
mar 3/317:14 pm
BWI
- ORD
1 stop5h 40m
Delta
mer 4/19:50 am
ORD
- BWI
1 stop5h 59m
Delta
Deal found 2/27![Delta logo]()
$237
This United Airlines deal was found by Cheapflights users on 2/28. Clicking the “Pick Dates” 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.
ven 4/36:00 am
BWI
- ORD
Nonstop2h 21m
United Airlines
dom 4/56:45 am
ORD
- BWI
Nonstop1h 54m
United Airlines
Deal found 2/28![United Airlines logo]()
$217
This American Airlines deal was found by Cheapflights users on 2/26. Clicking the “Pick Dates” 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.
ven 3/137:54 pm
BWI
- PIA
1 stop5h 02m
American Airlines
mar 3/176:50 pm
PIA
- BWI
1 stop3h 43m
American Airlines
Deal found 2/26![American Airlines logo]()
$279
This Southwest deal was found by Cheapflights users on 3/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ven 4/106:05 am
BWI
- MDW
Nonstop2h 05m
Southwest
lun 4/1311:45 am
MDW
- BWI
Nonstop1h 50m
Southwest
Deal found 3/1![Southwest logo]()
$217
This Delta deal was found by Cheapflights users on 2/27. Clicking the “Pick Dates” 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.
mar 3/1710:52 am
BWI
- MLI
1 stop6h 40m
Delta
mar 3/245:15 pm
MLI
- BWI
1 stop6h 38m
Delta
Deal found 2/27![Delta logo]()
$265
This Southwest deal was found by Cheapflights users on 2/25. Clicking the “Pick Dates” 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.
ven 5/84:45 pm
BWI
- MDW
1 stop4h 20m
Southwest
dom 5/105:15 am
MDW
- BWI
Nonstop1h 45m
Southwest
Deal found 2/25![Southwest logo]()
$226
This United Airlines deal was found by Cheapflights users on 2/27. Clicking the “Pick Dates” 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.
sab 4/253:42 pm
BWI
- PIA
1 stop6h 31m
United Airlines
mar 4/288:05 am
PIA
- BWI
1 stop4h 57m
United Airlines
Deal found 2/27![United Airlines logo]()
$251
This Kiwi.com deal was found by Cheapflights users on 2/28. Clicking the “Pick Dates” 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.
ven 5/223:29 pm
BWI
- RFD
1 stop18h 52m
Multiple Airlines
lun 5/258:03 pm
RFD
- BWI
1 stop11h 20m
Multiple Airlines
Deal found 2/28![Multiple Airlines logo]()
$345
This American Airlines deal was found by Cheapflights users on 3/1. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
gio 4/98:14 pm
BWI
- PIA
1 stop4h 38m
American Airlines
dom 4/126:23 pm
PIA
- BWI
1 stop4h 33m
American Airlines
Deal found 3/1![American Airlines logo]()
$319
This Delta deal was found by Cheapflights users on 3/1. 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.
dom 5/106:00 am
BWI
- MDW
1 stop5h 00m
Delta
dom 5/176:36 pm
MDW
- BWI
1 stop3h 41m
Delta
Deal found 3/1![Delta logo]()
$273
This United Airlines deal was found by Cheapflights users on 2/25. Clicking the “Pick Dates” 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.
gio 3/266:20 am
BWI
- ORD
Nonstop2h 23m
United Airlines
lun 3/306:15 pm
ORD
- BWI
Nonstop2h 08m
United Airlines
Deal found 2/25![United Airlines logo]()
$256
This KAYAK deal was found by Cheapflights users on 2/27. Clicking the “Pick Dates” 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.
mar 3/246:52 am
BWI
- PIA
1 stop6h 55m
American Airlines
mer 3/256:27 pm
PIA
- BWI
1 stop4h 31m
American Airlines
Deal found 2/27![American Airlines logo]()
$321
This Kiwi.com deal was found by Cheapflights users on 2/27. Clicking the “Pick Dates” 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.
mar 6/303:29 pm
BWI
- SPI
1 stop28h 22m
Multiple Airlines
sab 7/48:21 pm
SPI
- BWI
1 stop11h 02m
Multiple Airlines
Deal found 2/27![Multiple Airlines logo]()
$354
This Southwest deal was found by Cheapflights users on 2/26. Clicking the “Pick Dates” 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.
dom 4/127:45 am
BWI
- MDW
Nonstop2h 00m
Southwest
dom 4/195:15 am
MDW
- BWI
Nonstop1h 45m
Southwest
Deal found 2/26![Southwest logo]()
$247
This Delta deal was found by Cheapflights users on 2/27. Clicking the “Pick Dates” 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.
mer 4/225:33 pm
BWI
- ORD
1 stop4h 52m
Delta
dom 4/267:00 am
ORD
- BWI
1 stop3h 39m
Delta
Deal found 2/27![Delta logo]()
$273
This United Airlines deal was found by Cheapflights users on 2/26. Clicking the “Pick Dates” 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.
lun 6/158:05 pm
BWI
- PIA
1 stop5h 10m
United Airlines
sab 6/208:20 am
PIA
- BWI
1 stop4h 37m
United Airlines
Deal found 2/26![United Airlines logo]()
$269
This Southwest deal was found by Cheapflights users on 2/25. Clicking the “Pick Dates” 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.
gio 5/144:40 pm
BWI
- MDW
1 stop4h 45m
Southwest
ven 5/229:15 pm
MDW
- BWI
Nonstop1h 50m
Southwest
Deal found 2/25![Southwest logo]()
$265
This Delta deal was found by Cheapflights users on 2/27. Clicking the “Pick Dates” 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.
sab 5/236:00 am
BWI
- MLI
1 stop5h 20m
Delta
mar 5/2611:00 am
MLI
- BWI
1 stop5h 24m
Delta
Deal found 2/27![Delta logo]()
$294
This Kiwi.com deal was found by Cheapflights users on 2/27. Clicking the “Pick Dates” 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.
ven 3/2010:00 pm
BWI
- RFD
1 stop12h 24m
Multiple Airlines
lun 3/237:23 pm
RFD
- BWI
1 stop12h 30m
Multiple Airlines
Deal found 2/27![Multiple Airlines logo]()
$394
Last-minute flights from Baltimore to IllinoisDiscover last-minute flight deals from Baltimore to Illinois. Data last updated marzo 1, 2026 and is based on user searches.
Discover last-minute flight deals from Baltimore to Illinois. Data last updated marzo 1, 2026 and is based on user searches.
This Frontier deal was found by Cheapflights users on 2/27. Clicking the “Pick Dates” 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.
lun 3/164:32 pm
BWI
- ORD
Nonstop2h 27m
Frontier
ven 3/2012:34 pm
ORD
- BWI
Nonstop2h 09m
Frontier
Deal found 2/27![Frontier logo]()
$158
This Frontier deal was found by Cheapflights users on 2/27. Clicking the “Pick Dates” 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.
mar 3/174:23 pm
BWI
- ORD
1 stop8h 15m
Frontier
ven 3/2012:34 pm
ORD
- BWI
Nonstop2h 09m
Frontier
Deal found 2/27![Frontier logo]()
$144
This Expedia deal was found by Cheapflights users on 2/26. Clicking the “Pick Dates” 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.
mar 3/174:23 pm
BWI
- STL
1 stop16h 14m
Frontier
mer 3/184:51 pm
STL
- BWI
1 stop27h 07m
Frontier
Deal found 2/26![Frontier logo]()
$160
This Expedia deal was found by Cheapflights users on 2/27. Clicking the “Pick Dates” 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.
mar 3/174:23 pm
BWI
- ORD
1 stop24h 05m
Frontier
mer 3/186:36 pm
ORD
- BWI
1 stop13h 05m
Frontier
Deal found 2/27![Frontier logo]()
$160
This Kiwi.com deal was found by Cheapflights users on 2/25. Clicking the “Pick Dates” 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.
ven 3/204:28 pm
BWI
- ORD
Nonstop2h 27m
Frontier
mer 3/254:51 pm
ORD
- BWI
1 stop6h 50m
Frontier
Deal found 2/25![Frontier logo]()
$153
This Kiwi.com deal was found by Cheapflights users on 2/27. Clicking the “Pick Dates” 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.
ven 3/204:28 pm
BWI
- ORD
Nonstop2h 27m
Frontier
mar 3/243:28 pm
ORD
- BWI
1 stop16h 25m
Frontier
Deal found 2/27![Frontier logo]()
$157
This Kiwi.com deal was found by Cheapflights users on 2/27. Clicking the “Pick Dates” 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.
lun 3/234:05 pm
BWI
- ORD
1 stop8h 12m
Multiple Airlines
mer 4/18:00 am
ORD
- BWI
Nonstop2h 06m
Multiple Airlines
Deal found 2/27![Multiple Airlines logo]()
$142
This Frontier deal was found by Cheapflights users on 2/27. Clicking the “Pick Dates” 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.
lun 3/234:32 pm
BWI
- ORD
Nonstop2h 27m
Frontier
mer 4/18:00 am
ORD
- BWI
Nonstop2h 06m
Frontier
Deal found 2/27![Frontier logo]()
$143
This Kiwi.com deal was found by Cheapflights users on 2/26. Clicking the “Pick Dates” 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.
mar 3/2410:19 am
BWI
- ORD
1 stop7h 56m
Multiple Airlines
mer 4/18:00 am
ORD
- BWI
Nonstop2h 06m
Multiple Airlines
Deal found 2/26![Multiple Airlines logo]()
$132
This Kiwi.com deal was found by Cheapflights users on 2/25. Clicking the “Pick Dates” 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.
mar 3/244:05 pm
BWI
- ORD
1 stop8h 12m
Multiple Airlines
gio 4/21:19 pm
ORD
- BWI
Nonstop2h 05m
Multiple Airlines
Deal found 2/25![Multiple Airlines logo]()
$152
This Frontier deal was found by Cheapflights users on 2/26. Clicking the “Pick Dates” 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.
mar 3/243:19 pm
BWI
- MDW
1 stop6h 35m
Frontier
mar 3/316:00 am
MDW
- BWI
1 stop7h 24m
Frontier
Deal found 2/26![Frontier logo]()
$160
This Kiwi.com deal was found by Cheapflights users on 2/26. Clicking the “Pick Dates” 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.
mer 3/254:05 pm
BWI
- ORD
1 stop8h 12m
Multiple Airlines
mer 4/18:00 am
ORD
- BWI
Nonstop2h 06m
Multiple Airlines
Deal found 2/26![Multiple Airlines logo]()
$149
One-way flights from Baltimore to IllinoisSearch for one-way flight options from Baltimore to Illinois. Find affordable one-way fares based on user searches. Data last updated marzo 1, 2026.
Search for one-way flight options from Baltimore to Illinois. Find affordable one-way fares based on user searches. Data last updated marzo 1, 2026.
This Kiwi.com deal was found by Cheapflights users on 2/28. Clicking the “Pick Dates” 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.
lun 4/278:44 pm
BWI
- MDW
1 stop26h 30m
Frontier
Deal found 2/28![Frontier logo]()
$70
This Kiwi.com deal was found by Cheapflights users on 2/28. Clicking the “Pick Dates” 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.
sab 5/166:00 pm
BWI
- ORD
1 stop17h 44m
Frontier
Deal found 2/28![Frontier logo]()
$70
This Kiwi.com deal was found by Cheapflights users on 2/28. Clicking the “Pick Dates” 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.
lun 4/208:44 pm
BWI
- MDW
1 stop23h 47m
Frontier
Deal found 2/28![Frontier logo]()
$71
This Kiwi.com deal was found by Cheapflights users on 2/28. Clicking the “Pick Dates” 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.
lun 4/2012:27 pm
BWI
- ORD
1 stop22h 13m
Frontier
Deal found 2/28![Frontier logo]()
$71
This Kiwi.com deal was found by Cheapflights users on 2/28. Clicking the “Pick Dates” 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.
mer 4/13:19 pm
BWI
- MDW
1 stop8h 00m
Frontier
Deal found 2/28![Frontier logo]()
$72
This Trip.com deal was found by Cheapflights users on 2/26. Clicking the “Pick Dates” 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.
lun 4/2712:27 pm
BWI
- ORD
1 stop11h 12m
Frontier
Deal found 2/26![Frontier logo]()
$72
This Kiwi.com deal was found by Cheapflights users on 2/26. Clicking the “Pick Dates” 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.
dom 5/104:25 pm
BWI
- ORD
Nonstop2h 26m
Frontier
Deal found 2/26![Frontier logo]()
$73
This Trip.com deal was found by Cheapflights users on 2/28. Clicking the “Pick Dates” 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.
sab 4/1812:18 pm
BWI
- MDW
1 stop7h 19m
Frontier
Deal found 2/28![Frontier logo]()
$74
This United Airlines deal was found by Cheapflights users on 3/1. 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.
sab 4/46:00 am
BWI
- ORD
Nonstop2h 21m
United Airlines
Deal found 3/1![United Airlines logo]()
$74
This eDestinos deal was found by Cheapflights users on 2/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom 5/106:00 pm
BWI
- MDW
1 stop26h 31m
Frontier
Deal found 2/25![Frontier logo]()
$75
This Kiwi.com deal was found by Cheapflights users on 2/26. Clicking the “Pick Dates” 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.
mer 4/2212:17 pm
BWI
- ORD
1 stop7h 37m
Multiple Airlines
Deal found 2/26![Multiple Airlines logo]()
$75
This Kiwi.com deal was found by Cheapflights users on 2/28. Clicking the “Pick Dates” 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.
gio 4/238:57 am
BWI
- MDW
1 stop11h 34m
Frontier
Deal found 2/28![Frontier logo]()
$76
Find flight deals from Baltimore to Illinois
Keep the following information in mind while searching for Baltimore to Illinois flight deals. Data was last updated marzo 1, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $119 (Frontier) |
One-way from | $70 (Kiwi.com) |
Popular in | December |
Cheapest in | September |
Average price | $279 |
Cheapflights Fare Finder
Customize your flight search to find flights from Baltimore 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 marzo 1, 2026.
Use the filters below to find and compare flights from Baltimore to Illinois that are best for you.
Fly from
Fly to
Route
Depart
Return
BaltimoreChicago
BWI - ORD
BWIORD
Baltimore/Washington
sab 4/11
6:50 pm-8:11 pm
Nonstop2h 21m
Chicago O'Hare Intl
lun 4/13
2:30 pm-5:33 pm
Nonstop2h 03m
$161
BaltimoreChicago
BWI - ORD
BWIORD
Baltimore/Washington
lun 4/20
3:42 pm-5:00 pm
Nonstop2h 18m
Chicago O'Hare Intl
gio 4/23
2:30 pm-5:33 pm
Nonstop2h 03m
$161
BaltimoreChicago
BWI - MDW
BWIMDW
Baltimore/Washington
gio 5/7
6:05 am-7:10 am
Nonstop2h 05m
Chicago Midway
dom 5/10
5:15 am-8:00 am
Nonstop1h 45m
$177
BaltimoreChicago
BWI - ORD
BWIORD
Baltimore/Washington
sab 4/11
5:40 am-9:10 am
1 stop4h 30m
Chicago O'Hare Intl
lun 4/13
5:53 pm-12:38 am
1 stop5h 45m
$181
BaltimoreChicago
BWI - MDW
BWIMDW
Baltimore/Washington
gio 4/16
10:45 am-1:10 pm
1 stop3h 25m
Chicago Midway
lun 4/20
9:15 pm-12:05 am
Nonstop1h 50m
$197
BaltimoreChicago
BWI - MDW
BWIMDW
Baltimore/Washington
lun 4/20
9:15 pm-10:20 pm
Nonstop2h 05m
Chicago Midway
gio 4/23
12:45 pm-5:05 pm
1 stop3h 20m
$197
BaltimoreChicago
BWI - ORD
BWIORD
Baltimore/Washington
dom 4/26
6:00 am-7:21 am
Nonstop2h 21m
Chicago O'Hare Intl
gio 4/30
6:00 pm-9:02 pm
Nonstop2h 02m
$209
BaltimoreChicago
BWI - MDW
BWIMDW
Baltimore/Washington
gio 4/30
2:00 pm-3:05 pm
Nonstop2h 05m
Chicago Midway
lun 5/4
9:15 pm-12:05 am
Nonstop1h 50m
$215
BaltimoreChicago
BWI - ORD
BWIORD
Baltimore/Washington
ven 4/3
6:00 am-7:21 am
Nonstop2h 21m
Chicago O'Hare Intl
dom 4/5
6:45 am-9:39 am
Nonstop1h 54m
$217
BaltimoreChicago
BWI - MDW
BWIMDW
Baltimore/Washington
ven 4/10
6:05 am-7:10 am
Nonstop2h 05m
Chicago Midway
lun 4/13
11:45 am-2:35 pm
Nonstop1h 50m
$217
Showing 1-10 of 60 resultsSorted by cheapest first
Best time to book a flight from Baltimore to Illinois
Have a flexible travel schedule? Discover the best time to fly to Illinois from Baltimore with our price prediction graph.
BWI-ORD
BWI-MDW
BWI-MLI
BWI-RFD
BWI-PIA
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 Baltimore to Illinois
BWI-USIL
BWI-ORD
BWI-MDW
BWI-MLI
BWI-RFD
What is the cheapest month to book a flight from Baltimore to Illinois?
Currently, January is the cheapest month in which you can book a flight from Baltimore to Illinois (average of $57). Flying from Baltimore to Illinois in June is currently the most expensive (average of $134). 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 BWI to IL?
Find hourly flight availability from Baltimore 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 marzo 1, 2026.
When flying from Baltimore to Illinois, the time of day you fly usually plays a role in the price. Save by searching for a flight in the evening, which can drop the price by up to 40% versus a flight in the morning.
What is the cheapest day to fly from Baltimore to Illinois?
Use this chart to determine the cheapest time to fly round-trip from Baltimore to Illinois. Price data was last updated on February 21, 2026.
Travelers seeking maximum savings on their Baltimore to Illinois flight should consider departing on Monday afternoons 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.
Weekly flight availability from Baltimore to Illinois
Explore weekly flight availability from Baltimore 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 marzo 1, 2026.
The most flights from BWI to USIL are scheduled on a Sunday (17 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (7 on average).
How much does it cost to fly round-trip from Baltimore to Illinois?
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 marzo 1, 2026.
Read reviews from past customers who have flown Southwest, United Airlines, and American Airlines from Baltimore to Illinois. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Comfort
8.0
Boarding
8.1
Entertainment
7.5
Overall
8.0
Crew
8.6
Food
7.0
Reviews
1 / 20
8.0
ExcellentAnonymous,Feb 2026
DEN - BDL
Comfort
8.0
Boarding
8.1
Entertainment
7.5
Overall
8.0
Crew
8.6
Food
7.0
Reviews
1 / 20
8.0
ExcellentAnonymous,Feb 2026
DEN - BDL
Comfort
8.0
Boarding
8.1
Entertainment
7.5
Overall
8.0
Crew
8.6
Food
7.0
Reviews
1 / 20
8.0
ExcellentAnonymous,Feb 2026
DEN - BDL
Comfort
8.0
Boarding
8.1
Entertainment
7.5
Overall
8.0
Crew
8.6
Food
7.0
Reviews
1 / 20
8.0
ExcellentAnonymous,Feb 2026
DEN - BDL
Comfort
8.0
Boarding
8.1
Entertainment
7.5
Overall
8.0
Crew
8.6
Food
7.0
Reviews
1 / 20
8.0
ExcellentAnonymous,Feb 2026
DEN - BDL
Comfort
8.0
Boarding
8.1
Entertainment
7.5
Overall
8.0
Crew
8.6
Food
7.0
Reviews
1 / 20
8.0
ExcellentAnonymous,Feb 2026
DEN - BDL
Related info for your journey
Find useful and relevant information for your journey from Baltimore 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 Baltimore 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 Baltimore to Illinois by cabin class
Find flights from Baltimore to Illinois, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Baltimore and Illinois flights
Browse other Baltimore and Illinois flight options. Last updated on marzo 1, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Baltimore to Illinois flights
Consider these flights traveling from Baltimore to Illinois.
Top 6 airlines flying from Baltimore to Illinois
Discover the top 6 airlines that operate flights from Baltimore 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 marzo 1, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$41 | Average$114 | FlexibilityNo cancel fee | On-time65% | |
| Cheapest$57 | Average$165 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$131 | Average$318 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$139 | Average$288 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$158 | Average$400 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$239 | Average$486 | FlexibilityNo cancel fee | On-timeN/A |