$114+ Cheap flights from Missoula (MSO) 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 3/4. Fares are subject to change and may not be available on all flights or dates of travel.
MSO — ORD
Mar 2 — Mar 91
1 adult, Economy
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Find cheap flights from Missoula to Illinois with Cheapflights
1. Tell us where you want to go
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Cheapest flights from Missoula to IllinoisExplore the most affordable flight options available from Missoula to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 31, 2026.
Explore the most affordable flight options available from Missoula to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 31, 2026.
This United Airlines deal was found by Cheapflights users on 1/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/2812:31 pm
MSO
- ORD
Nonstop3h 32m
United Airlines
Tue 6/28:40 am
ORD
- MSO
Nonstop3h 55m
United Airlines
Deal found 1/30![United Airlines logo]()
$249
This Alaska Airlines deal was found by Cheapflights users on 1/29. Clicking the “Pick Dates” 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 2/206:23 am
MSO
- ORD
1 stop9h 10m
Alaska Airlines
Tue 3/35:29 pm
ORD
- MSO
1 stop7h 30m
Alaska Airlines
Deal found 1/29![Alaska Airlines logo]()
$253
This Delta deal was found by Cheapflights users on 1/29. Clicking the “Pick Dates” 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 3/46:10 pm
MSO
- STL
1 stop5h 15m
Delta
Sat 3/77:00 am
STL
- MSO
1 stop6h 26m
Delta
Deal found 1/29![Delta logo]()
$257
This United Airlines deal was found by Cheapflights users on 1/31. Clicking the “Pick Dates” 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 3/275:16 pm
MSO
- ORD
1 stop5h 36m
United Airlines
Sun 4/57:00 am
ORD
- MSO
1 stop7h 36m
United Airlines
Deal found 1/31![United Airlines logo]()
$261
This United Airlines deal was found by Cheapflights users on 1/29. Clicking the “Pick Dates” 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 2/205:08 pm
MSO
- ORD
1 stop5h 51m
United Airlines
Sat 2/217:10 am
ORD
- MSO
1 stop7h 22m
United Airlines
Deal found 1/29![United Airlines logo]()
$269
This Delta deal was found by Cheapflights users on 1/29. Clicking the “Pick Dates” 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 2/217:30 am
MSO
- MDW
1 stop7h 44m
Delta
Wed 3/41:49 pm
MDW
- MSO
1 stop7h 12m
Delta
Deal found 1/29![Delta logo]()
$269
This Delta deal was found by Cheapflights users on 1/29. Clicking the “Pick Dates” 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 2/191:16 pm
MSO
- ORD
1 stop7h 36m
Delta
Mon 3/23:59 pm
ORD
- MSO
2 stops8h 31m
Delta
Deal found 1/29![Delta logo]()
$274
This Delta deal was found by Cheapflights users on 1/29. Clicking the “Pick Dates” 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 2/217:30 am
MSO
- MDW
1 stop7h 44m
Delta
Mon 3/21:49 pm
MDW
- MSO
2 stops10h 41m
Delta
Deal found 1/29![Delta logo]()
$274
This Alaska Airlines deal was found by Cheapflights users on 1/29. Clicking the “Pick Dates” 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 2/236:23 am
MSO
- ORD
1 stop6h 48m
Alaska Airlines
Tue 3/35:29 pm
ORD
- MSO
1 stop7h 30m
Alaska Airlines
Deal found 1/29![Alaska Airlines logo]()
$287
This Alaska Airlines deal was found by Cheapflights users on 1/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/232:16 pm
MSO
- STL
1 stop8h 43m
Alaska Airlines
Sun 9/276:41 am
STL
- MSO
1 stop9h 42m
Alaska Airlines
Deal found 1/30![Alaska Airlines logo]()
$289
This United Airlines deal was found by Cheapflights users on 1/28. 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.
Sat 5/232:27 pm
MSO
- ORD
1 stop7h 17m
United Airlines
Sat 5/308:40 am
ORD
- MSO
Nonstop3h 55m
United Airlines
Deal found 1/28![United Airlines logo]()
$289
This Delta deal was found by Cheapflights users on 1/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/255:20 am
MSO
- ORD
1 stop5h 58m
Delta
Sun 3/297:10 pm
ORD
- MSO
1 stop6h 14m
Delta
Deal found 1/30![Delta logo]()
$290
Best flights from Missoula to IllinoisDiscover carefully curated flight deals from Missoula to Illinois that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated January 31, 2026.
Discover carefully curated flight deals from Missoula to Illinois that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated January 31, 2026.
This Delta deal was found by Cheapflights users on 1/29. Clicking the “Pick Dates” 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 3/46:10 pm
MSO
- STL
1 stop5h 15m
Delta
Sat 3/77:00 am
STL
- MSO
1 stop6h 26m
Delta
Deal found 1/29![Delta logo]()
$257
This United Airlines deal was found by Cheapflights users on 1/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/285:27 pm
MSO
- ORD
1 stop6h 17m
United Airlines
Tue 6/28:40 am
ORD
- MSO
Nonstop3h 55m
United Airlines
Deal found 1/30![United Airlines logo]()
$259
This Alaska Airlines deal was found by Cheapflights users on 1/28. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/206:23 am
MSO
- ORD
1 stop9h 10m
Alaska Airlines
Wed 2/255:29 pm
ORD
- MSO
1 stop7h 30m
Alaska Airlines
Deal found 1/28![Alaska Airlines logo]()
$269
This United Airlines deal was found by Cheapflights users on 1/31. Clicking the “Pick Dates” 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 3/275:16 pm
MSO
- ORD
1 stop5h 36m
United Airlines
Sun 4/57:00 am
ORD
- MSO
1 stop7h 36m
United Airlines
Deal found 1/31![United Airlines logo]()
$261
This Delta deal was found by Cheapflights users on 1/29. Clicking the “Pick Dates” 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 2/211:16 pm
MSO
- ORD
1 stop7h 36m
Delta
Wed 3/412:29 pm
ORD
- MSO
1 stop8h 32m
Delta
Deal found 1/29![Delta logo]()
$269
This United Airlines deal was found by Cheapflights users on 1/29. Clicking the “Pick Dates” 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 2/195:08 pm
MSO
- ORD
1 stop5h 51m
United Airlines
Sat 2/217:10 am
ORD
- MSO
1 stop7h 22m
United Airlines
Deal found 1/29![United Airlines logo]()
$269
This Delta deal was found by Cheapflights users on 1/29. Clicking the “Pick Dates” 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 2/205:15 am
MSO
- ORD
1 stop6h 04m
Delta
Thu 2/267:15 am
ORD
- MSO
1 stop6h 11m
Delta
Deal found 1/29![Delta logo]()
$269
This Alaska Airlines deal was found by Cheapflights users on 1/29. Clicking the “Pick Dates” 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 5/268:00 am
MSO
- STL
1 stop6h 50m
Alaska Airlines
Fri 6/57:56 pm
STL
- MSO
1 stop17h 27m
Alaska Airlines
Deal found 1/29![Alaska Airlines logo]()
$314
This United Airlines deal was found by Cheapflights users on 1/29. Clicking the “Pick Dates” 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 2/215:08 pm
MSO
- ORD
1 stop5h 51m
United Airlines
Sat 2/282:40 pm
ORD
- MSO
1 stop8h 17m
United Airlines
Deal found 1/29![United Airlines logo]()
$269
This Delta deal was found by Cheapflights users on 1/29. Clicking the “Pick Dates” 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 2/191:16 pm
MSO
- ORD
1 stop7h 36m
Delta
Thu 2/267:15 am
ORD
- MSO
1 stop6h 11m
Delta
Deal found 1/29![Delta logo]()
$269
This American Airlines deal was found by Cheapflights users on 1/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/102:08 pm
MSO
- MLI
1 stop8h 17m
American Airlines
Mon 7/134:33 pm
MLI
- MSO
1 stop7h 01m
American Airlines
Deal found 1/30![American Airlines logo]()
$670
This Kiwi.com deal was found by Cheapflights users on 1/29. Clicking the “Pick Dates” 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 4/46:20 pm
MSO
- PIA
1 stop16h 08m
Allegiant Air
Sat 4/114:48 pm
PIA
- MSO
1 stop19h 10m
Allegiant Air
Deal found 1/29![Allegiant Air logo]()
$685
This United Airlines deal was found by Cheapflights users on 1/31. Clicking the “Pick Dates” 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 7/95:27 pm
MSO
- ORD
1 stop6h 17m
United Airlines
Sun 7/125:00 am
ORD
- MSO
1 stop5h 53m
United Airlines
Deal found 1/31![United Airlines logo]()
$269
This Delta deal was found by Cheapflights users on 1/29. Clicking the “Pick Dates” 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 2/217:30 am
MSO
- MDW
1 stop7h 44m
Delta
Wed 3/41:49 pm
MDW
- MSO
1 stop7h 12m
Delta
Deal found 1/29![Delta logo]()
$269
This Kiwi.com deal was found by Cheapflights users on 1/29. Clicking the “Pick Dates” 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 4/46:20 pm
MSO
- PIA
2 stops41h 18m
Multiple Airlines
Sat 4/114:48 pm
PIA
- MSO
1 stop19h 10m
Multiple Airlines
Deal found 1/29![Multiple Airlines logo]()
$743
This United Airlines deal was found by Cheapflights users on 1/28. 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.
Fri 4/245:15 pm
MSO
- ORD
1 stop6h 15m
United Airlines
Sat 5/23:00 pm
ORD
- MSO
1 stop7h 30m
United Airlines
Deal found 1/28![United Airlines logo]()
$269
This Delta deal was found by Cheapflights users on 1/29. Clicking the “Pick Dates” 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 2/217:30 am
MSO
- MDW
1 stop7h 44m
Delta
Tue 3/31:49 pm
MDW
- MSO
1 stop7h 12m
Delta
Deal found 1/29![Delta logo]()
$269
This Delta deal was found by Cheapflights users on 1/29. Clicking the “Pick Dates” 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 2/217:30 am
MSO
- MDW
1 stop7h 44m
Delta
Wed 2/251:49 pm
MDW
- MSO
1 stop7h 12m
Delta
Deal found 1/29![Delta logo]()
$269
This Delta deal was found by Cheapflights users on 1/29. Clicking the “Pick Dates” 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 2/217:30 am
MSO
- MDW
1 stop7h 44m
Delta
Mon 3/21:49 pm
MDW
- MSO
1 stop7h 12m
Delta
Deal found 1/29![Delta logo]()
$269
This Alaska Airlines deal was found by Cheapflights users on 1/29. Clicking the “Pick Dates” 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 3/46:23 am
MSO
- STL
2 stops16h 36m
Alaska Airlines
Sat 3/75:12 am
STL
- MSO
2 stops19h 47m
Alaska Airlines
Deal found 1/29![Alaska Airlines logo]()
$443
This Delta deal was found by Cheapflights users on 1/28. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/181:40 pm
MSO
- ORD
1 stop6h 38m
Delta
Mon 4/275:04 pm
ORD
- MSO
2 stops8h 12m
Delta
Deal found 1/28![Delta logo]()
$274
This United Airlines deal was found by Cheapflights users on 1/29. Clicking the “Pick Dates” 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 5/265:27 pm
MSO
- STL
1 stop5h 31m
United Airlines
Fri 6/59:06 am
STL
- MSO
2 stops14h 24m
United Airlines
Deal found 1/29![United Airlines logo]()
$354
This Delta deal was found by Cheapflights users on 1/29. Clicking the “Pick Dates” 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 2/201:16 pm
MSO
- ORD
1 stop7h 36m
Delta
Wed 3/42:05 pm
ORD
- MSO
2 stops10h 25m
Delta
Deal found 1/29![Delta logo]()
$274
This Delta deal was found by Cheapflights users on 1/28. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/246:18 pm
MSO
- STL
1 stop5h 07m
Delta
Mon 4/276:45 pm
STL
- MSO
1 stop6h 31m
Delta
Deal found 1/28![Delta logo]()
$289
This United Airlines deal was found by Cheapflights users on 1/28. 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.
Sat 2/282:34 pm
MSO
- PIA
2 stops21h 09m
United Airlines
Tue 3/39:00 am
PIA
- MSO
1 stop8h 09m
United Airlines
Deal found 1/28![United Airlines logo]()
$428
This Delta deal was found by Cheapflights users on 1/29. Clicking the “Pick Dates” 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 2/217:30 am
MSO
- MDW
1 stop7h 44m
Delta
Thu 2/261:49 pm
MDW
- MSO
1 stop7h 12m
Delta
Deal found 1/29![Delta logo]()
$299
This United Airlines deal was found by Cheapflights users on 1/28. 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.
Sat 2/215:08 pm
MSO
- MLI
2 stops16h 03m
United Airlines
Tue 2/248:49 am
MLI
- MSO
1 stop8h 20m
United Airlines
Deal found 1/28![United Airlines logo]()
$428
This Orbitz deal was found by Cheapflights users on 1/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/106:36 pm
MSO
- MLI
2 stops15h 13m
Alaska Airlines
Mon 7/1311:19 am
MLI
- MSO
2 stops14h 00m
Alaska Airlines
Deal found 1/30![Alaska Airlines logo]()
$699
This Delta deal was found by Cheapflights users on 1/29. Clicking the “Pick Dates” 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 2/157:30 am
MSO
- MDW
1 stop7h 44m
Delta
Mon 3/21:49 pm
MDW
- MSO
1 stop7h 12m
Delta
Deal found 1/29![Delta logo]()
$299
This Delta deal was found by Cheapflights users on 1/29. Clicking the “Pick Dates” 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 2/157:30 am
MSO
- MDW
1 stop7h 44m
Delta
Thu 2/261:49 pm
MDW
- MSO
1 stop7h 12m
Delta
Deal found 1/29![Delta logo]()
$329
Last-minute flights from Missoula to IllinoisDiscover last-minute flight deals from Missoula to Illinois. Data last updated January 31, 2026 and is based on user searches.
Discover last-minute flight deals from Missoula to Illinois. Data last updated January 31, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 1/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/145:08 pm
MSO
- ORD
1 stop5h 51m
United Airlines
Tue 2/172:02 pm
ORD
- MSO
1 stop8h 55m
United Airlines
Deal found 1/30![United Airlines logo]()
$329
This Delta deal was found by Cheapflights users on 1/29. Clicking the “Pick Dates” 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 2/151:16 pm
MSO
- ORD
1 stop7h 36m
Delta
Mon 3/27:15 am
ORD
- MSO
1 stop6h 11m
Delta
Deal found 1/29![Delta logo]()
$299
This Delta deal was found by Cheapflights users on 1/29. Clicking the “Pick Dates” 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 2/157:30 am
MSO
- MDW
1 stop7h 44m
Delta
Tue 3/31:49 pm
MDW
- MSO
1 stop7h 12m
Delta
Deal found 1/29![Delta logo]()
$299
This Delta deal was found by Cheapflights users on 1/29. Clicking the “Pick Dates” 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 2/157:30 am
MSO
- MDW
1 stop7h 44m
Delta
Mon 3/21:49 pm
MDW
- MSO
2 stops10h 41m
Delta
Deal found 1/29![Delta logo]()
$304
This Delta deal was found by Cheapflights users on 1/29. Clicking the “Pick Dates” 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 2/157:30 am
MSO
- MDW
1 stop7h 44m
Delta
Thu 2/261:49 pm
MDW
- MSO
1 stop7h 12m
Delta
Deal found 1/29![Delta logo]()
$329
This Delta deal was found by Cheapflights users on 1/29. Clicking the “Pick Dates” 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 2/191:16 pm
MSO
- ORD
1 stop7h 36m
Delta
Mon 3/23:59 pm
ORD
- MSO
2 stops8h 31m
Delta
Deal found 1/29![Delta logo]()
$274
This Alaska Airlines deal was found by Cheapflights users on 1/29. Clicking the “Pick Dates” 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 2/206:23 am
MSO
- ORD
1 stop9h 10m
Alaska Airlines
Tue 3/35:29 pm
ORD
- MSO
1 stop7h 30m
Alaska Airlines
Deal found 1/29![Alaska Airlines logo]()
$253
This United Airlines deal was found by Cheapflights users on 1/29. Clicking the “Pick Dates” 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 2/205:08 pm
MSO
- ORD
1 stop5h 51m
United Airlines
Sat 2/217:10 am
ORD
- MSO
1 stop7h 22m
United Airlines
Deal found 1/29![United Airlines logo]()
$269
This Delta deal was found by Cheapflights users on 1/29. Clicking the “Pick Dates” 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 2/217:30 am
MSO
- MDW
1 stop7h 44m
Delta
Tue 3/31:49 pm
MDW
- MSO
1 stop7h 12m
Delta
Deal found 1/29![Delta logo]()
$269
This Delta deal was found by Cheapflights users on 1/29. Clicking the “Pick Dates” 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 2/217:30 am
MSO
- MDW
1 stop7h 44m
Delta
Wed 3/41:29 pm
MDW
- MSO
2 stops11h 01m
Delta
Deal found 1/29![Delta logo]()
$274
This Alaska Airlines deal was found by Cheapflights users on 1/29. Clicking the “Pick Dates” 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 2/236:23 am
MSO
- ORD
1 stop6h 48m
Alaska Airlines
Tue 3/35:29 pm
ORD
- MSO
1 stop7h 30m
Alaska Airlines
Deal found 1/29![Alaska Airlines logo]()
$287
This Alaska Airlines deal was found by Cheapflights users on 1/29. Clicking the “Pick Dates” 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 2/236:23 am
MSO
- ORD
1 stop6h 48m
Alaska Airlines
Fri 2/275:29 pm
ORD
- MSO
1 stop7h 30m
Alaska Airlines
Deal found 1/29![Alaska Airlines logo]()
$303
One-way flights from Missoula to IllinoisSearch for one-way flight options from Missoula to Illinois. Find affordable one-way fares based on user searches. Data last updated January 31, 2026.
Search for one-way flight options from Missoula to Illinois. Find affordable one-way fares based on user searches. Data last updated January 31, 2026.
This Trip.com deal was found by Cheapflights users on 1/29. Clicking the “Pick Dates” 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.
Wed 3/41:39 pm
MSO
- ORD
1 stop9h 17m
Hawaiian Airlines
Deal found 1/29![Hawaiian Airlines logo]()
$114
This Alaska Airlines deal was found by Cheapflights users on 1/31. Clicking the “Pick Dates” 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 2/256:23 am
MSO
- ORD
1 stop9h 10m
Alaska Airlines
Deal found 1/31![Alaska Airlines logo]()
$119
This Delta deal was found by Cheapflights users on 1/29. Clicking the “Pick Dates” 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 3/315:20 am
MSO
- ORD
1 stop5h 58m
Delta
Deal found 1/29![Delta logo]()
$131
This Alaska Airlines deal was found by Cheapflights users on 1/31. Clicking the “Pick Dates” 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.
Thu 2/266:23 am
MSO
- ORD
1 stop9h 10m
Alaska Airlines
Deal found 1/31![Alaska Airlines logo]()
$135
This Kiwi.com deal was found by Cheapflights users on 1/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/274:04 pm
MSO
- ORD
2 stops30h 13m
Multiple Airlines
Deal found 1/30![Multiple Airlines logo]()
$142
This Kiwi.com deal was found by Cheapflights users on 1/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/308:17 pm
MSO
- ORD
2 stops18h 18m
Multiple Airlines
Deal found 1/30![Multiple Airlines logo]()
$150
This Delta deal was found by Cheapflights users on 1/29. Clicking the “Pick Dates” 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 3/265:20 am
MSO
- ORD
1 stop5h 58m
Delta
Deal found 1/29![Delta logo]()
$160
This American Airlines deal was found by Cheapflights users on 1/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/311:20 pm
MSO
- ORD
Nonstop3h 30m
American Airlines
Deal found 1/30![American Airlines logo]()
$161
This Kiwi.com deal was found by Cheapflights users on 1/29. Clicking the “Pick Dates” 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 4/278:54 pm
MSO
- ORD
2 stops17h 23m
Multiple Airlines
Deal found 1/29![Multiple Airlines logo]()
$166
This Trip.com deal was found by Cheapflights users on 1/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/610:53 am
MSO
- STL
1 stop8h 55m
Multiple Airlines
Deal found 1/30![Multiple Airlines logo]()
$168
This Alaska Airlines deal was found by Cheapflights users on 1/31. Clicking the “Pick Dates” 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 3/24:20 pm
MSO
- ORD
1 stop6h 36m
Alaska Airlines
Deal found 1/31![Alaska Airlines logo]()
$169
This Delta deal was found by Cheapflights users on 1/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/61:25 pm
MSO
- STL
2 stops8h 58m
Delta
Deal found 1/30![Delta logo]()
$210
Find flight deals from Missoula to Illinois
Keep the following information in mind while searching for Missoula to Illinois flight deals. Data was last updated January 31, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $249 (United Airlines) |
One-way from | $114 (Trip.com) |
Popular in | January |
Cheapest in | July |
Average price | $725 |
Good round-trip deal | $360 or less |
Good one-way deal | $255 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from Missoula 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 January 31, 2026.
Use the filters below to find and compare flights from Missoula to Illinois that are best for you.
Fly from
Missoula
Fly to
Illinois
Route
Depart
Return
Price
MissoulaSt. Louis
MSO - STL
MSOSTL
Missoula Johnson-Bell Field
Wed 3/4
6:10 pm-12:25 am
1 stop5h 15m
Lambert-St Louis
Sat 3/7
7:00 am-12:26 pm
1 stop6h 26m
$257
MissoulaChicago
MSO - ORD
MSOORD
Missoula Johnson-Bell Field
Thu 5/28
5:27 pm-12:44 am
1 stop6h 17m
Chicago O'Hare Intl
Tue 6/2
8:40 am-11:35 am
Nonstop3h 55m
$259
MissoulaChicago
MSO - ORD
MSOORD
Missoula Johnson-Bell Field
Fri 3/27
5:16 pm-11:52 pm
1 stop5h 36m
Chicago O'Hare Intl
Sun 4/5
7:00 am-1:36 pm
1 stop7h 36m
$261
MissoulaChicago
MSO - ORD
MSOORD
Missoula Johnson-Bell Field
Fri 2/20
6:23 am-4:33 pm
1 stop9h 10m
Chicago O'Hare Intl
Wed 2/25
5:29 pm-11:59 pm
1 stop7h 30m
$269
MissoulaChicago
MSO - ORD
MSOORD
Missoula Johnson-Bell Field
Sat 2/21
1:16 pm-9:52 pm
1 stop7h 36m
Chicago O'Hare Intl
Wed 3/4
12:29 pm-8:01 pm
1 stop8h 32m
$269
MissoulaChicago
MSO - ORD
MSOORD
Missoula Johnson-Bell Field
Thu 2/19
5:08 pm-11:59 pm
1 stop5h 51m
Chicago O'Hare Intl
Sat 2/21
7:10 am-1:32 pm
1 stop7h 22m
$269
MissoulaChicago
MSO - ORD
MSOORD
Missoula Johnson-Bell Field
Fri 2/20
5:15 am-12:19 pm
1 stop6h 04m
Chicago O'Hare Intl
Thu 2/26
7:15 am-12:26 pm
1 stop6h 11m
$269
MissoulaChicago
MSO - ORD
MSOORD
Missoula Johnson-Bell Field
Sat 2/21
5:08 pm-11:59 pm
1 stop5h 51m
Chicago O'Hare Intl
Sat 2/28
2:40 pm-9:57 pm
1 stop8h 17m
$269
MissoulaChicago
MSO - ORD
MSOORD
Missoula Johnson-Bell Field
Thu 2/19
1:16 pm-9:52 pm
1 stop7h 36m
Chicago O'Hare Intl
Thu 2/26
7:15 am-12:26 pm
1 stop6h 11m
$269
MissoulaChicago
MSO - ORD
MSOORD
Missoula Johnson-Bell Field
Thu 7/9
5:27 pm-12:44 am
1 stop6h 17m
Chicago O'Hare Intl
Sun 7/12
5:00 am-9:53 am
1 stop5h 53m
$269
Showing 1-10 of 56 results
Best time to book a flight from Missoula to Illinois
Have a flexible travel schedule? Discover the best time to fly to Illinois from Missoula with our price prediction graph.
MSO-ORD
MSO-STL
MSO-MLI
MSO-MDW
MSO-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 Missoula to Illinois
MSO-USIL
MSO-ORD
MSO-STL
MSO-MLI
MSO-MDW
What is the cheapest month to book a flight from Missoula to Illinois?
Currently, August is the cheapest month in which you can book a flight from Missoula to Illinois (average of $191). Flying from Missoula to Illinois in December is currently the most expensive (average of $359). 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 MSO to IL?
Find hourly flight availability from Missoula 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 January 31, 2026.
Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Missoula to Illinois as you normally would.
Weekly flight availability from Missoula to Illinois
Explore weekly flight availability from Missoula 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 January 31, 2026.
The most flights from MSO to USIL are scheduled on a Monday (2 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (2 on average).
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 January 31, 2026.
Read reviews from past customers who have flown Alaska Airlines, Delta, and United Airlines from Missoula to Illinois. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Boarding
8.1
Overall
8.0
Comfort
7.8
Food
7.1
Crew
8.5
Entertainment
7.0
Reviews
1 / 20
10.0
ExcellentAnonymous,Jan 2026
STS - LAX
Boarding
8.1
Overall
8.0
Comfort
7.8
Food
7.1
Crew
8.5
Entertainment
7.0
Reviews
1 / 20
10.0
ExcellentAnonymous,Jan 2026
STS - LAX
Boarding
8.1
Overall
8.0
Comfort
7.8
Food
7.1
Crew
8.5
Entertainment
7.0
Reviews
1 / 20
10.0
ExcellentAnonymous,Jan 2026
STS - LAX
Boarding
8.1
Overall
8.0
Comfort
7.8
Food
7.1
Crew
8.5
Entertainment
7.0
Reviews
1 / 20
10.0
ExcellentAnonymous,Jan 2026
STS - LAX
Boarding
8.1
Overall
8.0
Comfort
7.8
Food
7.1
Crew
8.5
Entertainment
7.0
Reviews
1 / 20
10.0
ExcellentAnonymous,Jan 2026
STS - LAX
Related info for your journey
Find useful and relevant information for your journey from Missoula to Illinois. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Browse thousands of different options on Cheapflights for your next trip
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Alternative routes for Missoula to Illinois
See prices for flight routes from nearby airports that may be better suited for you.
Top 4 airlines flying from Missoula to Illinois
Discover the top 4 airlines that operate flights from Missoula 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 January 31, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$191 | Average$346 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$268 | Average$413 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$279 | Average$463 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$349 | Average$455 | FlexibilityNo cancel fee | On-time75% |