$113+ Cheap flights from Bozeman (BZN) 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 5/4. Fares are subject to change and may not be available on all flights or dates of travel.
BZN — ORD
Apr 6 — Apr 131
Round-trip
1 adult, Economy
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Cheapest flights from Bozeman to IllinoisExplore the most affordable flight options available from Bozeman to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 7, 2026.
Explore the most affordable flight options available from Bozeman to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 7, 2026.
This Southwest deal was found by Cheapflights users on 3/3. 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 4/94:20 pm
BZN
- STL
1 stop6h 30m
Southwest
Tue 4/148:35 am
STL
- BZN
1 stop7h 05m
Southwest
Deal found 3/3![Southwest logo]()
$211
This United Airlines deal was found by Cheapflights users on 3/2. 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.
Thu 3/2612:44 pm
BZN
- ORD
Nonstop3h 03m
United Airlines
Sun 3/299:05 am
ORD
- BZN
Nonstop3h 24m
United Airlines
Deal found 3/2![United Airlines logo]()
$229
This Southwest deal was found by Cheapflights users on 3/4. 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 4/17:30 am
BZN
- STL
1 stop6h 55m
Southwest
Wed 4/88:35 am
STL
- BZN
1 stop7h 05m
Southwest
Deal found 3/4![Southwest logo]()
$231
This United Airlines deal was found by Cheapflights users on 3/3. 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.
Wed 3/252:43 pm
BZN
- ORD
1 stop7h 12m
United Airlines
Sat 3/287:41 pm
ORD
- BZN
Nonstop3h 31m
United Airlines
Deal found 3/3![United Airlines logo]()
$235
This Southwest deal was found by Cheapflights users on 3/4. 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 4/204:20 pm
BZN
- STL
1 stop4h 45m
Southwest
Sat 4/256:10 am
STL
- BZN
2 stops9h 05m
Southwest
Deal found 3/4![Southwest logo]()
$236
This Alaska Airlines deal was found by Cheapflights users on 3/4. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/187:26 pm
BZN
- ORD
1 stop10h 13m
Alaska Airlines
Tue 4/285:52 pm
ORD
- BZN
1 stop7h 06m
Alaska Airlines
Deal found 3/4![Alaska Airlines logo]()
$237
This Southwest deal was found by Cheapflights users on 3/2. 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 5/76:15 am
BZN
- ORD
1 stop6h 40m
Southwest
Sun 5/104:50 pm
ORD
- BZN
1 stop8h 05m
Southwest
Deal found 3/2![Southwest logo]()
$244
This Delta deal was found by Cheapflights users on 3/2. 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.
Thu 4/232:53 pm
BZN
- MDW
1 stop6h 35m
Delta
Sat 4/252:12 pm
MDW
- BZN
1 stop6h 59m
Delta
Deal found 3/2![Delta logo]()
$249
This American Airlines deal was found by Cheapflights users on 3/3. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/271:36 pm
BZN
- ORD
Nonstop3h 09m
American Airlines
Sun 3/2910:09 am
ORD
- BZN
Nonstop3h 29m
American Airlines
Deal found 3/3![American Airlines logo]()
$249
This United Airlines deal was found by Cheapflights users on 3/2. 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.
Tue 3/172:43 pm
BZN
- STL
1 stop7h 51m
United Airlines
Sat 3/215:15 am
STL
- BZN
1 stop5h 27m
United Airlines
Deal found 3/2![United Airlines logo]()
$253
This Delta deal was found by Cheapflights users on 3/2. 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.
Tue 3/247:35 am
BZN
- ORD
2 stops9h 30m
Delta
Tue 3/312:20 pm
ORD
- BZN
1 stop9h 26m
Delta
Deal found 3/2![Delta logo]()
$254
This United Airlines deal was found by Cheapflights users on 3/3. 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.
Thu 4/302:40 pm
BZN
- ORD
1 stop7h 18m
United Airlines
Sun 5/39:01 am
ORD
- BZN
Nonstop3h 25m
United Airlines
Deal found 3/3![United Airlines logo]()
$255
Best flights from Bozeman to IllinoisDiscover carefully curated flight deals from Bozeman to Illinois that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated March 7, 2026.
Discover carefully curated flight deals from Bozeman to Illinois that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated March 7, 2026.
This Southwest deal was found by Cheapflights users on 3/4. 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 4/94:20 pm
BZN
- STL
1 stop4h 45m
Southwest
Tue 4/141:15 pm
STL
- BZN
2 stops9h 40m
Southwest
Deal found 3/4![Southwest logo]()
$236
This Alaska Airlines deal was found by Cheapflights users on 3/4. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/2411:23 am
BZN
- ORD
1 stop7h 29m
Alaska Airlines
Tue 4/285:52 pm
ORD
- BZN
1 stop7h 06m
Alaska Airlines
Deal found 3/4![Alaska Airlines logo]()
$257
This Delta deal was found by Cheapflights users on 3/2. 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.
Tue 4/145:59 am
BZN
- MDW
1 stop6h 33m
Delta
Fri 4/172:12 pm
MDW
- BZN
1 stop6h 59m
Delta
Deal found 3/2![Delta logo]()
$269
This United Airlines deal was found by Cheapflights users on 3/5. 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 3/218:00 am
BZN
- ORD
Nonstop3h 03m
United Airlines
Wed 3/257:41 pm
ORD
- BZN
Nonstop3h 31m
United Airlines
Deal found 3/5![United Airlines logo]()
$299
This American Airlines deal was found by Cheapflights users on 3/4. 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 6/114:57 pm
BZN
- MLI
1 stop5h 58m
American Airlines
Thu 6/1811:12 am
MLI
- BZN
1 stop5h 50m
American Airlines
Deal found 3/4![American Airlines logo]()
$450
This Southwest deal was found by Cheapflights users on 3/4. 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 4/204:20 pm
BZN
- STL
1 stop4h 45m
Southwest
Sat 4/256:10 am
STL
- BZN
2 stops9h 05m
Southwest
Deal found 3/4![Southwest logo]()
$236
This Alaska Airlines deal was found by Cheapflights users on 3/6. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/263:36 pm
BZN
- ORD
1 stop20h 37m
Alaska Airlines
Wed 4/296:00 am
ORD
- BZN
1 stop14h 19m
Alaska Airlines
Deal found 3/6![Alaska Airlines logo]()
$257
This Southwest deal was found by Cheapflights users on 3/2. 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.
Wed 4/158:10 am
BZN
- ORD
1 stop5h 50m
Southwest
Wed 4/154:50 pm
ORD
- BZN
1 stop8h 25m
Southwest
Deal found 3/2![Southwest logo]()
$249
This Delta deal was found by Cheapflights users on 3/6. 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.
Thu 4/232:53 pm
BZN
- MDW
1 stop6h 35m
Delta
Sat 4/252:12 pm
MDW
- BZN
2 stops8h 50m
Delta
Deal found 3/6![Delta logo]()
$299
This United Airlines deal was found by Cheapflights users on 3/6. 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.
Fri 7/314:20 pm
BZN
- ORD
Nonstop3h 15m
United Airlines
Mon 8/38:10 pm
ORD
- BZN
Nonstop3h 28m
United Airlines
Deal found 3/6![United Airlines logo]()
$299
This Southwest deal was found by Cheapflights users on 3/3. 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 7/237:35 am
BZN
- MDW
Nonstop2h 50m
Southwest
Wed 7/296:20 am
MDW
- BZN
1 stop7h 30m
Southwest
Deal found 3/3![Southwest logo]()
$264
This Delta deal was found by Cheapflights users on 3/4. 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 3/247:35 am
BZN
- ORD
2 stops9h 30m
Delta
Tue 3/316:15 am
ORD
- BZN
1 stop7h 51m
Delta
Deal found 3/4![Delta logo]()
$299
This United Airlines deal was found by Cheapflights users on 3/2. 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.
Fri 4/242:40 pm
BZN
- ORD
1 stop7h 14m
United Airlines
Tue 4/289:05 am
ORD
- BZN
Nonstop3h 26m
United Airlines
Deal found 3/2![United Airlines logo]()
$315
This Alaska 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/176:00 am
BZN
- STL
1 stop6h 55m
Alaska Airlines
Wed 6/242:53 pm
STL
- BZN
1 stop9h 29m
Alaska Airlines
Deal found 3/1![Alaska Airlines logo]()
$331
This Southwest deal was found by Cheapflights users on 3/6. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/98:40 am
BZN
- MDW
1 stop13h 25m
Southwest
Tue 5/126:05 pm
MDW
- BZN
1 stop7h 10m
Southwest
Deal found 3/6![Southwest logo]()
$275
This United Airlines deal was found by Cheapflights users on 3/2. 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.
Tue 3/174:30 pm
BZN
- STL
1 stop6h 04m
United Airlines
Wed 3/185:00 am
STL
- BZN
1 stop7h 40m
United Airlines
Deal found 3/2![United Airlines logo]()
$319
This Delta deal was found by Cheapflights users on 3/2. 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.
Thu 5/76:00 am
BZN
- MDW
2 stops11h 33m
Delta
Sun 5/107:13 pm
MDW
- BZN
1 stop5h 31m
Delta
Deal found 3/2![Delta logo]()
$322
This Alaska 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/166:00 am
BZN
- STL
1 stop6h 55m
Alaska Airlines
Wed 6/242:53 pm
STL
- BZN
1 stop9h 29m
Alaska Airlines
Deal found 3/1![Alaska Airlines logo]()
$331
This Southwest deal was found by Cheapflights users on 3/5. 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.
Mon 3/304:25 pm
BZN
- MDW
1 stop5h 25m
Southwest
Thu 4/212:10 pm
MDW
- BZN
2 stops13h 00m
Southwest
Deal found 3/5![Southwest logo]()
$280
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.
Fri 4/1712:32 pm
BZN
- ORD
Nonstop3h 10m
United Airlines
Sun 4/197:00 am
ORD
- BZN
1 stop7h 34m
United Airlines
Deal found 3/1![United Airlines logo]()
$319
This Delta deal was found by Cheapflights users on 3/5. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/55:59 am
BZN
- ORD
2 stops11h 53m
Delta
Sun 5/107:45 am
ORD
- BZN
1 stop5h 32m
Delta
Deal found 3/5![Delta logo]()
$322
This Delta deal was found by Cheapflights users on 3/6. 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.
Sun 4/265:59 am
BZN
- MDW
1 stop6h 33m
Delta
Wed 4/292:12 pm
MDW
- BZN
1 stop6h 59m
Delta
Deal found 3/6![Delta logo]()
$323
This Southwest deal was found by Cheapflights users on 3/2. 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 7/231:50 pm
BZN
- MDW
1 stop8h 35m
Southwest
Tue 7/286:40 pm
MDW
- BZN
1 stop7h 05m
Southwest
Deal found 3/2![Southwest logo]()
$305
This United Airlines deal was found by Cheapflights users on 3/5. 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.
Mon 3/166:30 am
BZN
- STL
1 stop5h 49m
United Airlines
Tue 3/177:40 am
STL
- BZN
2 stops8h 48m
United Airlines
Deal found 3/5![United Airlines logo]()
$344
This Southwest deal was found by Cheapflights users on 3/4. 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 4/110:55 am
BZN
- STL
2 stops9h 30m
Southwest
Wed 4/85:45 am
STL
- BZN
2 stops9h 55m
Southwest
Deal found 3/4![Southwest logo]()
$314
This United Airlines deal was found by Cheapflights users on 3/5. 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.
Wed 3/2510:38 am
BZN
- MLI
2 stops10h 44m
United Airlines
Sat 3/283:52 pm
MLI
- BZN
1 stop7h 20m
United Airlines
Deal found 3/5![United Airlines logo]()
$384
This Southwest deal was found by Cheapflights users on 3/2. 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.
Wed 4/158:10 am
BZN
- MDW
1 stop5h 05m
Southwest
Wed 4/154:00 pm
MDW
- BZN
2 stops9h 15m
Southwest
Deal found 3/2![Southwest logo]()
$329
This United Airlines deal was found by Cheapflights users on 3/2. 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.
Fri 6/265:51 pm
BZN
- STL
1 stop5h 06m
United Airlines
Tue 6/305:10 am
STL
- BZN
1 stop5h 27m
United Airlines
Deal found 3/2![United Airlines logo]()
$385
This Southwest deal was found by Cheapflights users on 3/4. 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 5/74:20 pm
BZN
- STL
1 stop6h 30m
Southwest
Thu 5/142:25 pm
STL
- BZN
2 stops9h 35m
Southwest
Deal found 3/4![Southwest logo]()
$346
This United Airlines deal was found by Cheapflights users on 3/4. 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 6/114:29 pm
BZN
- MLI
2 stops19h 10m
United Airlines
Thu 6/186:34 pm
MLI
- BZN
2 stops16h 03m
United Airlines
Deal found 3/4![United Airlines logo]()
$840
Last-minute flights from Bozeman to IllinoisDiscover last-minute flight deals from Bozeman to Illinois. Data last updated March 7, 2026 and is based on user searches.
Discover last-minute flight deals from Bozeman to Illinois. Data last updated March 7, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 3/2. 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.
Tue 3/172:43 pm
BZN
- STL
1 stop7h 51m
United Airlines
Sat 3/215:15 am
STL
- BZN
1 stop5h 27m
United Airlines
Deal found 3/2![United Airlines logo]()
$253
This Delta deal was found by Cheapflights users on 3/2. 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.
Tue 3/247:35 am
BZN
- ORD
2 stops9h 30m
Delta
Tue 3/312:20 pm
ORD
- BZN
1 stop9h 26m
Delta
Deal found 3/2![Delta logo]()
$254
This United Airlines deal was found by Cheapflights users on 3/3. 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.
Wed 3/252:43 pm
BZN
- ORD
1 stop7h 12m
United Airlines
Sat 3/287:41 pm
ORD
- BZN
Nonstop3h 31m
United Airlines
Deal found 3/3![United Airlines logo]()
$235
This United Airlines deal was found by Cheapflights users on 3/2. 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.
Thu 3/2612:44 pm
BZN
- ORD
Nonstop3h 03m
United Airlines
Sun 3/299:05 am
ORD
- BZN
Nonstop3h 24m
United Airlines
Deal found 3/2![United Airlines logo]()
$229
This American Airlines deal was found by Cheapflights users on 3/3. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/271:36 pm
BZN
- ORD
Nonstop3h 09m
American Airlines
Sun 3/2910:09 am
ORD
- BZN
Nonstop3h 29m
American Airlines
Deal found 3/3![American Airlines logo]()
$249
This Southwest deal was found by Cheapflights users on 3/4. 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 4/17:30 am
BZN
- STL
1 stop6h 55m
Southwest
Wed 4/88:35 am
STL
- BZN
1 stop7h 05m
Southwest
Deal found 3/4![Southwest logo]()
$231
This Southwest deal was found by Cheapflights users on 3/3. 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 4/94:20 pm
BZN
- STL
1 stop6h 30m
Southwest
Tue 4/148:35 am
STL
- BZN
1 stop7h 05m
Southwest
Deal found 3/3![Southwest logo]()
$211
This Alaska Airlines deal was found by Cheapflights users on 3/4. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/187:26 pm
BZN
- ORD
1 stop10h 13m
Alaska Airlines
Tue 4/285:52 pm
ORD
- BZN
1 stop7h 06m
Alaska Airlines
Deal found 3/4![Alaska Airlines logo]()
$237
This Southwest deal was found by Cheapflights users on 3/4. 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 4/204:20 pm
BZN
- STL
1 stop4h 45m
Southwest
Thu 4/308:25 am
STL
- BZN
1 stop8h 15m
Southwest
Deal found 3/4![Southwest logo]()
$236
This Delta deal was found by Cheapflights users on 3/2. 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.
Thu 4/232:53 pm
BZN
- MDW
1 stop6h 35m
Delta
Sat 4/252:12 pm
MDW
- BZN
1 stop6h 59m
Delta
Deal found 3/2![Delta logo]()
$249
This Alaska Airlines deal was found by Cheapflights users on 3/4. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/2411:23 am
BZN
- ORD
1 stop7h 29m
Alaska Airlines
Tue 4/285:52 pm
ORD
- BZN
1 stop7h 06m
Alaska Airlines
Deal found 3/4![Alaska Airlines logo]()
$257
This United Airlines deal was found by Cheapflights users on 3/3. 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.
Thu 4/302:40 pm
BZN
- ORD
1 stop7h 18m
United Airlines
Sun 5/39:01 am
ORD
- BZN
Nonstop3h 25m
United Airlines
Deal found 3/3![United Airlines logo]()
$255
One-way flights from Bozeman to IllinoisSearch for one-way flight options from Bozeman to Illinois. Find affordable one-way fares based on user searches. Data last updated March 7, 2026.
Search for one-way flight options from Bozeman to Illinois. Find affordable one-way fares based on user searches. Data last updated March 7, 2026.
This Alaska Airlines deal was found by Cheapflights users on 3/2. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/47:59 pm
BZN
- ORD
1 stop9h 41m
Alaska Airlines
Deal found 3/2![Alaska Airlines logo]()
$113
This American Airlines deal was found by Cheapflights users on 3/6. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/304:57 pm
BZN
- STL
1 stop5h 57m
American Airlines
Deal found 3/6![American Airlines logo]()
$116
This Southwest deal was found by Cheapflights users on 3/2. 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.
Fri 5/16:15 am
BZN
- ORD
1 stop6h 40m
Southwest
Deal found 3/2![Southwest logo]()
$120
This United Airlines deal was found by Cheapflights users on 3/3. 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.
Tue 5/512:35 pm
BZN
- ORD
Nonstop3h 10m
United Airlines
Deal found 3/3![United Airlines logo]()
$123
This Delta deal was found by Cheapflights users on 3/2. 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 5/22:53 pm
BZN
- MDW
1 stop6h 35m
Delta
Deal found 3/2![Delta logo]()
$125
This Expedia deal was found by Cheapflights users on 3/2. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/237:26 pm
BZN
- ORD
1 stop10h 13m
Alaska Airlines
Deal found 3/2![Alaska Airlines logo]()
$125
This United Airlines deal was found by Cheapflights users on 3/3. 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.
Tue 6/22:26 pm
BZN
- ORD
1 stop7h 23m
United Airlines
Deal found 3/3![United Airlines logo]()
$128
This Southwest deal was found by Cheapflights users on 3/2. 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.
Wed 4/17:30 am
BZN
- MDW
2 stops7h 40m
Southwest
Deal found 3/2![Southwest logo]()
$130
This Delta deal was found by Cheapflights users on 3/2. 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.
Tue 3/315:58 am
BZN
- ORD
2 stops9h 45m
Delta
Deal found 3/2![Delta logo]()
$130
This American Airlines deal was found by Cheapflights users on 3/3. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/285:00 pm
BZN
- ORD
Nonstop3h 20m
American Airlines
Deal found 3/3![American Airlines logo]()
$133
This Delta deal was found by Cheapflights users on 3/2. 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.
Tue 5/52:53 pm
BZN
- MDW
1 stop6h 35m
Delta
Deal found 3/2![Delta logo]()
$135
This Delta deal was found by Cheapflights users on 3/2. 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 6/31:45 pm
BZN
- ORD
1 stop4h 35m
Delta
Deal found 3/2![Delta logo]()
$135
Find flight deals from Bozeman to Illinois
Keep the following information in mind while searching for Bozeman to Illinois flight deals. Data was last updated March 7, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $211 (Southwest) |
One-way from | $113 (Alaska Airlines) |
Popular in | May |
Cheapest in | January |
Average price | $355 |
Good round-trip deal | $342 or less |
Good one-way deal | $199 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from Bozeman 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 March 7, 2026.
Use the filters below to find and compare flights from Bozeman to Illinois that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
BozemanSt. Louis
BZN - STL
BZNSTL
Bozeman Gallatin Field
Thu 4/9
4:20 pm-10:05 pm
1 stop4h 45m
Lambert-St Louis
Tue 4/14
1:15 pm-9:55 pm
2 stops9h 40m
$236
BozemanSt. Louis
BZN - STL
BZNSTL
Bozeman Gallatin Field
Mon 4/20
4:20 pm-10:05 pm
1 stop4h 45m
Lambert-St Louis
Sat 4/25
6:10 am-2:15 pm
2 stops9h 05m
$236
BozemanChicago
BZN - ORD
BZNORD
Bozeman Gallatin Field
Wed 4/15
8:10 am-3:00 pm
1 stop5h 50m
Chicago O'Hare Intl
Wed 4/15
4:50 pm-12:15 am
1 stop8h 25m
$249
BozemanChicago
BZN - ORD
BZNORD
Bozeman Gallatin Field
Fri 4/24
11:23 am-7:52 pm
1 stop7h 29m
Chicago O'Hare Intl
Tue 4/28
5:52 pm-11:58 pm
1 stop7h 06m
$257
BozemanChicago
BZN - ORD
BZNORD
Bozeman Gallatin Field
Sun 4/26
3:36 pm-1:13 pm
1 stop20h 37m
Chicago O'Hare Intl
Wed 4/29
6:00 am-7:19 pm
1 stop14h 19m
$257
BozemanChicago
BZN - MDW
BZNMDW
Bozeman Gallatin Field
Thu 7/23
7:35 am-11:25 am
Nonstop2h 50m
Chicago Midway
Wed 7/29
6:20 am-12:50 pm
1 stop7h 30m
$264
BozemanChicago
BZN - MDW
BZNMDW
Bozeman Gallatin Field
Tue 4/14
5:59 am-1:32 pm
1 stop6h 33m
Chicago Midway
Fri 4/17
2:12 pm-8:11 pm
1 stop6h 59m
$269
BozemanChicago
BZN - MDW
BZNMDW
Bozeman Gallatin Field
Sat 5/9
8:40 am-11:05 pm
1 stop13h 25m
Chicago Midway
Tue 5/12
6:05 pm-12:15 am
1 stop7h 10m
$275
BozemanChicago
BZN - MDW
BZNMDW
Bozeman Gallatin Field
Mon 3/30
4:25 pm-10:50 pm
1 stop5h 25m
Chicago Midway
Thu 4/2
12:10 pm-12:10 am
2 stops13h 00m
$280
Quickest round-trip
BozemanChicago
BZN - ORD
BZNORD
Bozeman Gallatin Field
Sat 3/21
8:00 am-12:03 pm
Nonstop3h 03m
Chicago O'Hare Intl
Wed 3/25
7:41 pm-10:12 pm
Nonstop3h 31m
$299
Showing 1-10 of 60 resultsSorted by cheapest first
Best time to book a flight from Bozeman to Illinois
Have a flexible travel schedule? Discover the best time to fly to Illinois from Bozeman with our price prediction graph.
BZN-STL
BZN-ORD
BZN-MDW
BZN-MLI
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 Bozeman to Illinois
BZN-USIL
BZN-STL
BZN-ORD
BZN-MDW
BZN-MLI
What is the cheapest month to book a flight from Bozeman to Illinois?
Currently, October is the cheapest month in which you can book a flight from Bozeman to Illinois (average of $169). Flying from Bozeman to Illinois in November is currently the most expensive (average of $298). 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 BZN to IL?
Find hourly flight availability from Bozeman 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 March 7, 2026.
When flying from Bozeman to Illinois, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.
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 March 7, 2026.
Get a feel of what it's like to fly with Southwest, Delta, and United Airlines from Bozeman to Illinois by reading reviews from past customers. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Food
7.0
Entertainment
7.5
Boarding
8.1
Comfort
8.0
Overall
8.0
Crew
8.6
Reviews
1 / 20
10.0
ExcellentAnonymous,Mar 2026
KOA - HNL
Food
7.0
Entertainment
7.5
Boarding
8.1
Comfort
8.0
Overall
8.0
Crew
8.6
Reviews
1 / 20
10.0
ExcellentAnonymous,Mar 2026
KOA - HNL
Food
7.0
Entertainment
7.5
Boarding
8.1
Comfort
8.0
Overall
8.0
Crew
8.6
Reviews
1 / 20
10.0
ExcellentAnonymous,Mar 2026
KOA - HNL
Food
7.0
Entertainment
7.5
Boarding
8.1
Comfort
8.0
Overall
8.0
Crew
8.6
Reviews
1 / 20
10.0
ExcellentAnonymous,Mar 2026
KOA - HNL
Food
7.0
Entertainment
7.5
Boarding
8.1
Comfort
8.0
Overall
8.0
Crew
8.6
Reviews
1 / 20
10.0
ExcellentAnonymous,Mar 2026
KOA - HNL
Related info for your journey
Find useful and relevant information for your journey from Bozeman 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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Complete your trip
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Bozeman and Illinois flights
Browse other Bozeman and Illinois flight options. Last updated on March 7, 2026.
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Bozeman to Illinois flights
Consider these flights traveling from Bozeman to Illinois.
Top 2 airlines flying from Bozeman to Illinois
Discover the top 2 airlines that operate flights from Bozeman 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 March 7, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$187 | Average$465 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$191 | Average$289 | FlexibilityNo cancel fee | On-time71% |