$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 10/7. Fares are subject to change and may not be available on all flights or dates of travel.
BWI — ORD
Sep 8 — Sep 151
Round-trip
1 adult, Economy
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Find cheap flights from Baltimore to Illinois with Cheapflights
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Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
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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 August 9, 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 August 9, 2026.
This Kiwi.com deal was found by Cheapflights users on 8/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/79:25 pm -
1 stop13h 15m
Mon 10/1210:35 am -
1 stop21h 22m
Deal found 8/7![Frontier logo]()
$134
This Kiwi.com deal was found by Cheapflights users on 8/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/119:20 pm -
1 stop13h 20m
Mon 11/1610:35 am -
1 stop7h 01m
Deal found 8/5![Frontier logo]()
$137
This Kiwi.com deal was found by Cheapflights users on 8/4. 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 9/36:45 am -
1 stop11h 37m
Mon 9/76:17 pm -
1 stop22h 26m
Deal found 8/4![Frontier logo]()
$138
This Kiwi.com deal was found by Cheapflights users on 8/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/217:29 pm -
1 stop15h 11m
Mon 10/2610:35 am -
1 stop6h 59m
Deal found 8/6![Frontier logo]()
$139
This Kiwi.com deal was found by Cheapflights users on 8/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/116:00 am -
1 stop8h 10m
Mon 9/142:29 pm -
1 stop25h 17m
Deal found 8/8![Frontier logo]()
$140
This Kiwi.com deal was found by Cheapflights users on 8/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/38:45 am -
1 stop9h 37m
Fri 9/46:17 pm -
1 stop12h 09m
Deal found 8/5![Frontier logo]()
$141
This Kiwi.com deal was found by Cheapflights users on 8/4. 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.
Fri 9/48:45 am -
1 stop9h 37m
Mon 9/76:17 pm -
1 stop12h 09m
Deal found 8/4![Frontier logo]()
$142
This Kiwi.com deal was found by Cheapflights users on 8/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/59:20 pm -
1 stop13h 20m
Mon 11/910:35 am -
1 stop20h 54m
Deal found 8/6![Frontier logo]()
$144
This Kiwi.com deal was found by Cheapflights users on 8/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/146:00 am -
1 stop8h 10m
Fri 9/182:29 pm -
1 stop7h 35m
Deal found 8/7![Frontier logo]()
$145
This Kiwi.com deal was found by Cheapflights users on 8/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/286:00 am -
1 stop8h 10m
Fri 10/22:29 pm -
1 stop7h 35m
Deal found 8/5![Frontier logo]()
$146
This Kiwi.com deal was found by Cheapflights users on 8/4. 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 9/59:32 pm -
1 stop20h 50m
Fri 9/112:29 pm -
1 stop7h 35m
Deal found 8/4![Frontier logo]()
$147
This Frontier deal was found by Cheapflights users on 8/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/46:37 pm -
Nonstop2h 28m
Tue 9/87:05 am -
1 stop9h 38m
Deal found 8/5![Frontier logo]()
$193
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 August 9, 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 August 9, 2026.
This Southwest deal was found by Cheapflights users on 8/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/57:30 pm -
Nonstop2h 05m
Sat 9/123:45 pm -
Nonstop1h 50m
Deal found 8/7![Southwest logo]()
$219
This United Airlines deal was found by Cheapflights users on 8/3. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/56:05 am -
Nonstop2h 20m
Tue 9/87:30 am -
Nonstop2h 00m
Deal found 8/3![United Airlines logo]()
$219
This Delta deal was found by Cheapflights users on 8/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/67:00 am -
1 stop6h 40m
Fri 9/185:10 pm -
1 stop4h 51m
Deal found 8/8![Delta logo]()
$258
This Kiwi.com deal was found by Cheapflights users on 8/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/169:52 pm -
1 stop18h 32m
Sun 10/258:08 pm -
1 stop12h 20m
Deal found 8/7![Multiple Airlines logo]()
$271
This American Airlines deal was found by Cheapflights users on 8/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/207:03 am -
1 stop5h 08m
Mon 8/244:54 pm -
1 stop6h 04m
Deal found 8/5![American Airlines logo]()
$280
This United Airlines deal was found by Cheapflights users on 8/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/55:40 pm -
Nonstop2h 20m
Sat 9/123:15 pm -
Nonstop2h 07m
Deal found 8/7![United Airlines logo]()
$219
This Southwest deal was found by Cheapflights users on 8/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/118:00 pm -
Nonstop2h 00m
Mon 9/148:05 am -
1 stop3h 15m
Deal found 8/5![Southwest logo]()
$225
This Southwest deal was found by Cheapflights users on 8/4. 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.
Thu 9/36:30 am -
Nonstop2h 00m
Sat 9/511:45 am -
1 stop3h 15m
Deal found 8/4![Southwest logo]()
$254
This American Airlines deal was found by Cheapflights users on 8/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/302:08 pm -
1 stop5h 02m
Tue 10/66:48 pm -
1 stop4h 28m
Deal found 8/8![American Airlines logo]()
$280
This Kiwi.com deal was found by Cheapflights users on 8/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/89:52 pm -
1 stop11h 10m
Sun 10/1810:30 am -
1 stop25h 30m
Deal found 8/5![Multiple Airlines logo]()
$285
This Delta deal was found by Cheapflights users on 8/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/1312:10 pm -
1 stop5h 18m
Tue 11/176:00 am -
1 stop5h 56m
Deal found 8/7![Delta logo]()
$307
This Southwest deal was found by Cheapflights users on 8/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/48:00 pm -
Nonstop2h 00m
Sat 9/59:05 am -
1 stop3h 45m
Deal found 8/7![Southwest logo]()
$255
This Kiwi.com deal was found by Cheapflights users on 8/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/19:32 pm -
1 stop11h 27m
Mon 10/56:31 pm -
1 stop26h 28m
Deal found 8/5![Multiple Airlines logo]()
$288
This United Airlines deal was found by Cheapflights users on 8/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/1210:25 am -
1 stop5h 50m
Sat 9/192:05 pm -
1 stop6h 24m
Deal found 8/5![United Airlines logo]()
$295
This American Airlines deal was found by Cheapflights users on 8/4. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/177:17 am -
1 stop4h 34m
Wed 10/2111:21 am -
1 stop5h 30m
Deal found 8/4![American Airlines logo]()
$295
This Delta deal was found by Cheapflights users on 8/4. 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.
Tue 9/296:00 am -
1 stop5h 13m
Mon 10/55:09 pm -
1 stop5h 15m
Deal found 8/4![Delta logo]()
$307
This Southwest deal was found by Cheapflights users on 8/3. 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.
Sat 9/52:10 pm -
2 stops6h 10m
Sun 9/68:55 am -
1 stop5h 25m
Deal found 8/3![Southwest logo]()
$259
This Delta deal was found by Cheapflights users on 8/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/176:00 am -
1 stop5h 22m
Wed 10/215:04 pm -
1 stop6h 47m
Deal found 8/6![Delta logo]()
$307
This United Airlines deal was found by Cheapflights users on 8/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/55:40 pm -
1 stop6h 34m
Sat 9/1210:42 am -
1 stop6h 40m
Deal found 8/7![United Airlines logo]()
$307
This Southwest deal was found by Cheapflights users on 8/4. 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.
Thu 11/1212:35 pm -
Nonstop2h 05m
Mon 11/166:00 am -
Nonstop2h 00m
Deal found 8/4![Southwest logo]()
$261
This Kiwi.com deal was found by Cheapflights users on 8/3. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/19:32 pm -
1 stop11h 27m
Sun 10/49:36 pm -
2 stops13h 24m
Deal found 8/3![Multiple Airlines logo]()
$330
This American Airlines deal was found by Cheapflights users on 8/4. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/37:03 am -
1 stop7h 04m
Thu 9/105:02 am -
1 stop4h 05m
Deal found 8/4![American Airlines logo]()
$334
This United Airlines deal was found by Cheapflights users on 8/4. 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 10/19:09 am -
Nonstop2h 20m
Sun 10/47:30 am -
Nonstop2h 00m
Deal found 8/4![United Airlines logo]()
$310
This Southwest deal was found by Cheapflights users on 8/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/311:10 pm -
Nonstop1h 55m
Thu 9/310:30 am -
Nonstop1h 45m
Deal found 8/7![Southwest logo]()
$261
This Delta deal was found by Cheapflights users on 8/4. 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.
Sat 9/125:10 pm -
1 stop5h 35m
Fri 9/2512:04 pm -
1 stop6h 43m
Deal found 8/4![Delta logo]()
$319
This Delta deal was found by Cheapflights users on 8/3. 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 9/27:00 am -
1 stop5h 27m
Wed 9/912:04 pm -
1 stop6h 39m
Deal found 8/3![Delta logo]()
$319
This KAYAK deal was found by Cheapflights users on 8/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/317:46 am -
1 stop5h 29m
Wed 9/28:15 am -
Nonstop2h 07m
Deal found 8/6![American Airlines logo]()
$351
This United Airlines deal was found by Cheapflights users on 8/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/296:05 am -
Nonstop2h 20m
Sun 8/307:45 pm -
Nonstop2h 15m
Deal found 8/6![United Airlines logo]()
$320
This Southwest deal was found by Cheapflights users on 8/3. 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.
Thu 9/178:25 am -
Nonstop2h 05m
Thu 9/248:10 am -
1 stop3h 35m
Deal found 8/3![Southwest logo]()
$267
This Kiwi.com deal was found by Cheapflights users on 8/4. 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 9/109:32 pm -
1 stop12h 20m
Sun 9/139:29 pm -
2 stops13h 31m
Deal found 8/4![Multiple Airlines logo]()
$382
Last-minute flights from Baltimore to IllinoisDiscover last-minute flight deals from Baltimore to Illinois. Data last updated August 9, 2026 and is based on user searches.
Discover last-minute flight deals from Baltimore to Illinois. Data last updated August 9, 2026 and is based on user searches.
This Expedia deal was found by Cheapflights users on 8/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/266:28 pm -
1 stop5h 19m
Sat 8/2911:45 am -
1 stop4h 58m
Deal found 8/7![Frontier logo]()
$194
This Kiwi.com deal was found by Cheapflights users on 8/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/29:32 pm -
1 stop20h 50m
Mon 9/76:17 pm -
1 stop12h 09m
Deal found 8/6![Frontier logo]()
$148
This Kiwi.com deal was found by Cheapflights users on 8/4. 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 9/29:32 pm -
1 stop20h 50m
Wed 9/92:29 pm -
1 stop6h 29m
Deal found 8/4![Frontier logo]()
$149
This Kiwi.com deal was found by Cheapflights users on 8/4. 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 9/36:45 am -
1 stop11h 37m
Mon 9/76:17 pm -
1 stop22h 26m
Deal found 8/4![Frontier logo]()
$138
This Kiwi.com deal was found by Cheapflights users on 8/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/38:45 am -
1 stop9h 37m
Fri 9/46:17 pm -
1 stop12h 09m
Deal found 8/5![Frontier logo]()
$141
This Kiwi.com deal was found by Cheapflights users on 8/4. 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.
Fri 9/48:45 am -
1 stop9h 37m
Mon 9/76:17 pm -
1 stop12h 09m
Deal found 8/4![Frontier logo]()
$142
This Frontier deal was found by Cheapflights users on 8/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/46:37 pm -
Nonstop2h 28m
Mon 9/79:10 pm -
1 stop13h 14m
Deal found 8/6![Frontier logo]()
$193
This Kiwi.com deal was found by Cheapflights users on 8/4. 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 9/59:32 pm -
1 stop20h 50m
Fri 9/112:29 pm -
1 stop7h 35m
Deal found 8/4![Frontier logo]()
$147
This Kiwi.com deal was found by Cheapflights users on 8/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/86:28 pm -
1 stop5h 19m
Thu 9/106:25 am -
1 stop9h 21m
Deal found 8/8![Frontier logo]()
$193
This Kiwi.com deal was found by Cheapflights users on 8/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/116:00 am -
1 stop8h 10m
Mon 9/142:29 pm -
1 stop25h 17m
Deal found 8/5![Frontier logo]()
$140
This Kiwi.com deal was found by Cheapflights users on 8/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/146:00 am -
1 stop8h 10m
Fri 9/182:29 pm -
1 stop7h 35m
Deal found 8/7![Frontier logo]()
$145
This Kiwi.com deal was found by Cheapflights users on 8/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/286:00 am -
1 stop8h 10m
Fri 10/22:29 pm -
1 stop7h 35m
Deal found 8/5![Frontier logo]()
$146
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 August 9, 2026.
Search for one-way flight options from Baltimore to Illinois. Find affordable one-way fares based on user searches. Data last updated August 9, 2026.
This Kiwi.com deal was found by Cheapflights users on 8/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/79:25 pm -
1 stop13h 15m
Deal found 8/7![Frontier logo]()
$70
This Kiwi.com deal was found by Cheapflights users on 8/4. 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 11/47:31 pm -
1 stop15h 09m
Deal found 8/4![Frontier logo]()
$71
This Trip.com deal was found by Cheapflights users on 8/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/49:25 pm -
1 stop16h 45m
Deal found 8/5![Frontier logo]()
$72
This Kiwi.com deal was found by Cheapflights users on 8/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/119:29 pm -
1 stop13h 11m
Deal found 8/6![Frontier logo]()
$73
This Kiwi.com deal was found by Cheapflights users on 8/3. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/38:45 am -
1 stop9h 37m
Deal found 8/3![Frontier logo]()
$74
This Kiwi.com deal was found by Cheapflights users on 8/4. 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 10/56:00 am -
1 stop8h 10m
Deal found 8/4![Frontier logo]()
$75
This Kiwi.com deal was found by Cheapflights users on 8/3. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/56:28 pm -
1 stop23h 54m
Deal found 8/3![Frontier logo]()
$76
This Kiwi.com deal was found by Cheapflights users on 8/4. 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 10/109:20 pm -
1 stop13h 20m
Deal found 8/4![Frontier logo]()
$79
This Kiwi.com deal was found by Cheapflights users on 8/4. 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.
Fri 10/26:00 am -
1 stop8h 10m
Deal found 8/4![Frontier logo]()
$80
This Kiwi.com deal was found by Cheapflights users on 8/4. 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 10/317:31 pm -
1 stop16h 09m
Deal found 8/4![Frontier logo]()
$81
This Trip.com deal was found by Cheapflights users on 8/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/76:45 am -
1 stop11h 37m
Deal found 8/8![Frontier logo]()
$85
This Kiwi.com deal was found by Cheapflights users on 8/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/89:32 pm -
1 stop16h 38m
Deal found 8/7![Frontier logo]()
$86
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 August 9, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $134 (Kiwi.com) |
One-way from | $70 (Kiwi.com) |
Popular in | June |
Cheapest in | January |
Average price | $277 |
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 August 9, 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
Cheapest round-trip
BaltimoreChicago
BWI Baltimore/Washington - MDW Chicago Midway
BWIMDW
Baltimore/Washington
Sat 9/5
7:30 pm-8:35 pm
Nonstop2h 05m
Chicago Midway
Sat 9/12
3:45 pm-6:35 pm
Nonstop1h 50m
$219
BaltimoreChicago
BWI Baltimore/Washington - ORD Chicago O'Hare Intl
BWIORD
Baltimore/Washington
Sat 9/5
6:05 am-7:25 am
Nonstop2h 20m
Chicago O'Hare Intl
Tue 9/8
7:30 am-10:30 am
Nonstop2h 00m
$219
BaltimoreChicago
BWI Baltimore/Washington - ORD Chicago O'Hare Intl
BWIORD
Baltimore/Washington
Sat 9/5
5:40 pm-7:00 pm
Nonstop2h 20m
Chicago O'Hare Intl
Sat 9/12
3:15 pm-6:22 pm
Nonstop2h 07m
$219
BaltimoreChicago
BWI Baltimore/Washington - MDW Chicago Midway
BWIMDW
Baltimore/Washington
Fri 9/11
8:00 pm-9:00 pm
Nonstop2h 00m
Chicago Midway
Mon 9/14
8:05 am-12:20 pm
1 stop3h 15m
$225
BaltimoreChicago
BWI Baltimore/Washington - MDW Chicago Midway
BWIMDW
Baltimore/Washington
Thu 9/3
6:30 am-7:30 am
Nonstop2h 00m
Chicago Midway
Sat 9/5
11:45 am-4:00 pm
1 stop3h 15m
$254
BaltimoreChicago
BWI Baltimore/Washington - MDW Chicago Midway
BWIMDW
Baltimore/Washington
Fri 9/4
8:00 pm-9:00 pm
Nonstop2h 00m
Chicago Midway
Sat 9/5
9:05 am-1:50 pm
1 stop3h 45m
$255
BaltimoreChicago
BWI Baltimore/Washington - ORD Chicago O'Hare Intl
BWIORD
Baltimore/Washington
Sun 9/6
7:00 am-12:40 pm
1 stop6h 40m
Chicago O'Hare Intl
Fri 9/18
5:10 pm-11:01 pm
1 stop4h 51m
$258
BaltimoreChicago
BWI Baltimore/Washington - MDW Chicago Midway
BWIMDW
Baltimore/Washington
Sat 9/5
2:10 pm-7:20 pm
2 stops6h 10m
Chicago Midway
Sun 9/6
8:55 am-3:20 pm
1 stop5h 25m
$259
BaltimoreChicago
BWI Baltimore/Washington - MDW Chicago Midway
BWIMDW
Baltimore/Washington
Thu 11/12
12:35 pm-1:40 pm
Nonstop2h 05m
Chicago Midway
Mon 11/16
6:00 am-9:00 am
Nonstop2h 00m
$261
Quickest round-trip
BaltimoreChicago
BWI Baltimore/Washington - MDW Chicago Midway
BWIMDW
Baltimore/Washington
Mon 8/31
1:10 pm-2:05 pm
Nonstop1h 55m
Chicago Midway
Thu 9/3
10:30 am-1:15 pm
Nonstop1h 45m
$261
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-MDW
BWI-ORD
BWI-BMI
BWI-CMI
BWI-RFD
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-MDW
BWI-ORD
BWI-BMI
BWI-CMI
What is the cheapest month to book a flight from Baltimore to Illinois?
Currently, September is the cheapest month in which you can book a flight from Baltimore to Illinois (average of $218). Flying from Baltimore to Illinois in June is currently the most expensive (average of $376). 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 August 9, 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 afternoon, which can drop the price by up to 31% versus a flight in the morning.
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 August 9, 2026.
The most flights from BWI to USIL are scheduled on a Friday (22 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (2 on average).
How much does it cost to fly round-trip from Baltimore to Illinois?
Airfare is below average for this route at the moment.
Baltimore to Illinois flights typically cost between $196 and $366 in September.The cheapest round-trip price found within the last 5 days was $193 on Frontier (Sep 4-Sep 7).
How far ahead should I book a flight from Baltimore to Illinois?
To ensure you get the cheapest price possible for a flight from Baltimore to Illinois, you should look to book at least 68 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.
What is the cheapest day to fly from 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 August 1, 2026.
Travelers seeking maximum savings on their Baltimore to Illinois flight should consider departing on Friday at noon when fares are most often at their lowest. Monday mornings 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 August 9, 2026.
Read reviews from past customers who have flown Southwest,Delta, andUnited Airlines from Baltimore to Illinois. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Entertainment
7.5
Overall
8.0
Crew
8.6
Boarding
8.1
Comfort
8.0
Food
7.0
Reviews
1 / 20
10.0
ExcellentDavid,Aug 2023
BWI - SAN
Entertainment
7.5
Overall
8.0
Crew
8.6
Boarding
8.1
Comfort
8.0
Food
7.0
Reviews
1 / 20
10.0
ExcellentDavid,Aug 2023
BWI - SAN
Entertainment
7.5
Overall
8.0
Crew
8.6
Boarding
8.1
Comfort
8.0
Food
7.0
Reviews
1 / 20
10.0
ExcellentDavid,Aug 2023
BWI - SAN
Entertainment
7.5
Overall
8.0
Crew
8.6
Boarding
8.1
Comfort
8.0
Food
7.0
Reviews
1 / 20
10.0
ExcellentDavid,Aug 2023
BWI - SAN
Entertainment
7.5
Overall
8.0
Crew
8.6
Boarding
8.1
Comfort
8.0
Food
7.0
Reviews
1 / 20
10.0
ExcellentDavid,Aug 2023
BWI - SAN
Entertainment
7.5
Overall
8.0
Crew
8.6
Boarding
8.1
Comfort
8.0
Food
7.0
Reviews
1 / 20
10.0
ExcellentDavid,Aug 2023
BWI - SAN
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
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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 August 9, 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 5 airlines flying from Baltimore to Illinois
Discover the top 5 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 August 9, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$57 | Average$175 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$131 | Average$401 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$134 | Average$326 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$174 | Average$340 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$308 | Average$413 | FlexibilityNo cancel fee | On-timeN/A |