$107+ Cheap flights from Chicago (CHI) to Idaho
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 8/18. Fares are subject to change and may not be available on all flights or dates of travel.
CHI — BOI
Jun 3 — Jun 101
Round-trip
1 adult, Economy
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Find cheap flights from Chicago to Idaho with Cheapflights
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Cheapest flights from Chicago to IdahoExplore the most affordable flight options available from Chicago to Idaho. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 4, 2026.
Explore the most affordable flight options available from Chicago to Idaho. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 4, 2026.
This Expedia deal was found by Cheapflights users on 5/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/26:00 am
ORD
- GEG
1 stop7h 42m
Multiple Airlines
Wed 6/312:33 pm
GEG
- ORD
1 stop5h 59m
Multiple Airlines
Deal found 5/1![Multiple Airlines logo]()
$244
This Expedia deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/27:49 pm
ORD
- BOI
1 stop16h 14m
Multiple Airlines
Tue 6/91:25 pm
BOI
- ORD
1 stop6h 18m
Multiple Airlines
Deal found 4/30![Multiple Airlines logo]()
$258
This Alaska Airlines deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/22:10 pm
ORD
- GEG
1 stop9h 35m
Alaska Airlines
Wed 6/37:01 am
GEG
- ORD
1 stop9h 49m
Alaska Airlines
Deal found 4/30![Alaska Airlines logo]()
$277
This CheapOair deal was found by Cheapflights users on 5/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/249:48 pm
ORD
- BOI
1 stop15h 42m
Frontier
Tue 6/301:25 pm
BOI
- ORD
1 stop6h 18m
Frontier
Deal found 5/1![Frontier logo]()
$281
This Expedia deal was found by Cheapflights users on 5/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/87:20 am
ORD
- GEG
1 stop6h 25m
Multiple Airlines
Mon 8/1712:32 pm
GEG
- ORD
1 stop6h 20m
Multiple Airlines
Deal found 5/1![Multiple Airlines logo]()
$287
This United Airlines deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/25:00 am
ORD
- IDA
1 stop5h 50m
United Airlines
Sat 6/135:54 pm
IDA
- ORD
1 stop5h 50m
United Airlines
Deal found 4/30![United Airlines logo]()
$291
This Travelocity deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/116:00 am
ORD
- BOI
1 stop7h 35m
Multiple Airlines
Tue 9/1512:59 pm
BOI
- ORD
1 stop7h 36m
Multiple Airlines
Deal found 4/30![Multiple Airlines logo]()
$293
This Expedia deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/142:20 pm
ORD
- GEG
1 stop10h 47m
Multiple Airlines
Mon 7/2012:32 pm
GEG
- ORD
1 stop6h 20m
Multiple Airlines
Deal found 4/30![Multiple Airlines logo]()
$293
This Alaska Airlines deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/287:49 pm
ORD
- BOI
1 stop16h 14m
Alaska Airlines
Sat 5/308:51 pm
BOI
- ORD
1 stop8h 29m
Alaska Airlines
Deal found 4/30![Alaska Airlines logo]()
$295
This American Airlines deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/211:24 am
ORD
- GEG
Nonstop3h 57m
American Airlines
Wed 6/32:14 pm
GEG
- ORD
Nonstop3h 56m
American Airlines
Deal found 4/30![American Airlines logo]()
$297
This Travelocity deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/178:05 pm
ORD
- BOI
1 stop14h 38m
Multiple Airlines
Sun 7/191:25 pm
BOI
- ORD
1 stop6h 27m
Multiple Airlines
Deal found 4/30![Multiple Airlines logo]()
$298
This Expedia deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/97:40 am
ORD
- GEG
1 stop7h 24m
Multiple Airlines
Fri 6/1212:31 pm
GEG
- ORD
1 stop6h 12m
Multiple Airlines
Deal found 4/30![Multiple Airlines logo]()
$304
Best flights from Chicago to IdahoDiscover carefully curated flight deals from Chicago to Idaho that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated May 4, 2026.
Discover carefully curated flight deals from Chicago to Idaho that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated May 4, 2026.
This Alaska Airlines deal was found by Cheapflights users on 5/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/22:10 pm
ORD
- GEG
1 stop9h 35m
Alaska Airlines
Wed 6/312:46 pm
GEG
- ORD
1 stop8h 13m
Alaska Airlines
Deal found 5/3![Alaska Airlines logo]()
$295
This Delta deal was found by Cheapflights users on 5/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/37:12 am
ORD
- GEG
1 stop6h 59m
Delta
Wed 6/102:23 pm
GEG
- ORD
1 stop5h 02m
Delta
Deal found 5/3![Delta logo]()
$317
This Southwest deal was found by Cheapflights users on 4/29. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/24:00 pm
MDW
- BOI
2 stops9h 25m
Southwest
Tue 6/97:10 am
BOI
- MDW
Nonstop3h 20m
Southwest
Deal found 4/29![Southwest logo]()
$330
This United Airlines deal was found by Cheapflights users on 4/29. 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.
Mon 5/258:40 am
ORD
- BOI
Nonstop3h 52m
United Airlines
Fri 5/295:46 pm
BOI
- ORD
1 stop5h 58m
United Airlines
Deal found 4/29![United Airlines logo]()
$340
This Alaska Airlines deal was found by Cheapflights users on 5/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/227:00 pm
ORD
- GEG
1 stop6h 59m
Alaska Airlines
Wed 9/236:00 am
GEG
- ORD
1 stop11h 03m
Alaska Airlines
Deal found 5/2![Alaska Airlines logo]()
$315
This Delta deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/277:45 am
ORD
- WYS
1 stop5h 40m
Delta
Wed 6/31:10 pm
WYS
- ORD
1 stop7h 40m
Delta
Deal found 4/30![Delta logo]()
$324
This United Airlines deal was found by Cheapflights users on 5/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/205:00 am
ORD
- IDA
1 stop5h 50m
United Airlines
Sat 6/275:54 pm
IDA
- ORD
1 stop5h 50m
United Airlines
Deal found 5/3![United Airlines logo]()
$341
This Alaska Airlines deal was found by Cheapflights users on 5/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/42:10 pm
ORD
- GEG
1 stop9h 35m
Alaska Airlines
Sat 6/61:59 pm
GEG
- ORD
1 stop8h 00m
Alaska Airlines
Deal found 5/2![Alaska Airlines logo]()
$315
This Southwest deal was found by Cheapflights users on 5/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/226:00 am
MDW
- BOI
1 stop8h 25m
Southwest
Sun 7/269:45 pm
BOI
- MDW
1 stop7h 00m
Southwest
Deal found 5/3![Southwest logo]()
$365
This Delta deal was found by Cheapflights users on 5/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/228:27 am
ORD
- BOI
1 stop6h 17m
Delta
Tue 7/282:50 pm
BOI
- ORD
1 stop6h 02m
Delta
Deal found 5/3![Delta logo]()
$335
This United Airlines deal was found by Cheapflights users on 5/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/298:40 am
ORD
- BOI
Nonstop3h 52m
United Airlines
Sun 8/95:46 pm
BOI
- ORD
1 stop5h 58m
United Airlines
Deal found 5/2![United Airlines logo]()
$355
This Alaska Airlines deal was found by Cheapflights users on 4/29. 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.
Sat 5/309:00 am
ORD
- GEG
1 stop14h 45m
Alaska Airlines
Tue 6/21:59 pm
GEG
- ORD
1 stop8h 00m
Alaska Airlines
Deal found 4/29![Alaska Airlines logo]()
$326
This Delta deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/155:55 pm
ORD
- GEG
1 stop8h 00m
Delta
Tue 7/215:25 am
GEG
- ORD
1 stop6h 03m
Delta
Deal found 4/30![Delta logo]()
$335
This Southwest deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/105:15 am
MDW
- BOI
1 stop5h 30m
Southwest
Sun 7/127:50 pm
BOI
- MDW
1 stop8h 20m
Southwest
Deal found 4/30![Southwest logo]()
$375
This United Airlines deal was found by Cheapflights users on 5/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/225:00 am
ORD
- IDA
1 stop5h 50m
United Airlines
Tue 6/22:30 pm
IDA
- ORD
1 stop7h 19m
United Airlines
Deal found 5/2![United Airlines logo]()
$359
This Alaska Airlines deal was found by Cheapflights users on 4/29. 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.
Thu 9/107:00 am
ORD
- GEG
1 stop6h 52m
Alaska Airlines
Sun 9/1312:46 pm
GEG
- ORD
1 stop8h 55m
Alaska Airlines
Deal found 4/29![Alaska Airlines logo]()
$335
This Delta deal was found by Cheapflights users on 5/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/216:55 am
ORD
- BOI
1 stop9h 16m
Delta
Tue 7/2811:53 am
BOI
- ORD
2 stops8h 59m
Delta
Deal found 5/3![Delta logo]()
$340
This Southwest deal was found by Cheapflights users on 5/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/45:15 am
MDW
- BOI
1 stop5h 30m
Southwest
Sun 6/77:50 pm
BOI
- MDW
1 stop8h 20m
Southwest
Deal found 5/3![Southwest logo]()
$380
This United Airlines deal was found by Cheapflights users on 4/29. 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 6/26:00 am
ORD
- WYS
1 stop8h 32m
United Airlines
Tue 6/92:19 pm
WYS
- ORD
1 stop7h 30m
United Airlines
Deal found 4/29![United Airlines logo]()
$371
This Delta deal was found by Cheapflights users on 4/29. 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 5/247:12 am
ORD
- BOI
1 stop8h 48m
Delta
Thu 5/285:20 am
BOI
- ORD
2 stops11h 45m
Delta
Deal found 4/29![Delta logo]()
$340
This Southwest deal was found by Cheapflights users on 5/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/46:30 am
MDW
- GEG
2 stops9h 20m
Southwest
Sat 7/113:15 pm
GEG
- MDW
1 stop11h 25m
Southwest
Deal found 5/1![Southwest logo]()
$401
This Alaska Airlines deal was found by Cheapflights users on 5/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/47:49 pm
ORD
- BOI
1 stop16h 14m
Alaska Airlines
Sun 6/78:51 pm
BOI
- ORD
1 stop8h 29m
Alaska Airlines
Deal found 5/3![Alaska Airlines logo]()
$367
This Delta deal was found by Cheapflights users on 5/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/301:44 pm
ORD
- GEG
2 stops11h 22m
Delta
Mon 6/11:11 pm
GEG
- ORD
1 stop8h 44m
Delta
Deal found 5/3![Delta logo]()
$340
This United Airlines deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/225:00 am
ORD
- IDA
1 stop5h 53m
United Airlines
Sat 8/292:30 pm
IDA
- ORD
1 stop7h 11m
United Airlines
Deal found 4/30![United Airlines logo]()
$381
This Delta deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/47:45 am
ORD
- GEG
1 stop6h 16m
Delta
Sat 6/69:31 am
GEG
- ORD
2 stops10h 19m
Delta
Deal found 4/30![Delta logo]()
$340
This Southwest deal was found by Cheapflights users on 5/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/256:40 pm
MDW
- GEG
1 stop8h 40m
Southwest
Tue 6/306:25 am
GEG
- MDW
Nonstop3h 30m
Southwest
Deal found 5/3![Southwest logo]()
$417
This United Airlines deal was found by Cheapflights users on 5/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/78:40 am
ORD
- BOI
Nonstop3h 52m
United Airlines
Mon 8/105:46 pm
BOI
- ORD
1 stop5h 58m
United Airlines
Deal found 5/1![United Airlines logo]()
$385
This Delta deal was found by Cheapflights users on 5/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/309:23 am
MDW
- GEG
2 stops8h 35m
Delta
Mon 6/110:40 pm
GEG
- MDW
1 stop9h 20m
Delta
Deal found 5/3![Delta logo]()
$340
This Alaska Airlines deal was found by Cheapflights users on 4/29. 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 7/205:42 pm
ORD
- IDA
1 stop22h 55m
Alaska Airlines
Sat 7/254:14 pm
IDA
- ORD
1 stop11h 46m
Alaska Airlines
Deal found 4/29![Alaska Airlines logo]()
$429
This United Airlines deal was found by Cheapflights users on 5/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/234:21 pm
ORD
- JAC
Nonstop3h 21m
United Airlines
Tue 7/284:23 pm
JAC
- ORD
1 stop5h 26m
United Airlines
Deal found 5/1![United Airlines logo]()
$408
Last-minute flights from Chicago to IdahoDiscover last-minute flight deals from Chicago to Idaho. Data last updated May 4, 2026 and is based on user searches.
Discover last-minute flight deals from Chicago to Idaho. Data last updated May 4, 2026 and is based on user searches.
This American Airlines deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/2111:17 am
ORD
- GEG
Nonstop3h 57m
American Airlines
Tue 5/262:08 pm
GEG
- ORD
Nonstop3h 59m
American Airlines
Deal found 4/30![American Airlines logo]()
$306
This American Airlines deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/2411:30 am
ORD
- BOI
Nonstop3h 50m
American Airlines
Sat 5/303:11 pm
BOI
- ORD
Nonstop3h 53m
American Airlines
Deal found 4/30![American Airlines logo]()
$315
This American Airlines deal was found by Cheapflights users on 4/29. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/265:50 pm
ORD
- GEG
1 stop7h 19m
American Airlines
Tue 6/22:11 pm
GEG
- ORD
Nonstop3h 59m
American Airlines
Deal found 4/29![American Airlines logo]()
$307
This Delta deal was found by Cheapflights users on 4/29. 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 5/267:13 pm
MDW
- GEG
1 stop5h 53m
Delta
Tue 6/210:40 pm
GEG
- MDW
1 stop9h 20m
Delta
Deal found 4/29![Delta logo]()
$317
This Delta deal was found by Cheapflights users on 5/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/262:11 pm
ORD
- GEG
1 stop5h 50m
Delta
Tue 6/26:10 am
GEG
- ORD
1 stop8h 37m
Delta
Deal found 5/2![Delta logo]()
$317
This Expedia deal was found by Cheapflights users on 5/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/276:00 am
ORD
- GEG
1 stop9h 04m
Multiple Airlines
Mon 6/112:33 pm
GEG
- ORD
1 stop5h 59m
Multiple Airlines
Deal found 5/2![Multiple Airlines logo]()
$313
This Delta deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/277:45 am
ORD
- WYS
1 stop5h 40m
Delta
Wed 6/31:10 pm
WYS
- ORD
1 stop7h 40m
Delta
Deal found 4/30![Delta logo]()
$324
This Expedia deal was found by Cheapflights users on 5/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/282:10 pm
ORD
- GEG
1 stop9h 35m
Multiple Airlines
Mon 6/112:33 pm
GEG
- ORD
1 stop5h 59m
Multiple Airlines
Deal found 5/1![Multiple Airlines logo]()
$293
This Alaska Airlines deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/287:49 pm
ORD
- BOI
1 stop16h 14m
Alaska Airlines
Sat 5/308:51 pm
BOI
- ORD
1 stop8h 29m
Alaska Airlines
Deal found 4/30![Alaska Airlines logo]()
$295
This Alaska Airlines deal was found by Cheapflights users on 4/29. 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.
Thu 5/282:10 pm
ORD
- BOI
1 stop9h 27m
Alaska Airlines
Mon 6/18:51 pm
BOI
- ORD
1 stop8h 29m
Alaska Airlines
Deal found 4/29![Alaska Airlines logo]()
$310
This Alaska Airlines deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/297:49 pm
ORD
- GEG
1 stop14h 43m
Alaska Airlines
Sat 6/61:59 pm
GEG
- ORD
1 stop7h 00m
Alaska Airlines
Deal found 4/30![Alaska Airlines logo]()
$295
This Orbitz deal was found by Cheapflights users on 5/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/295:44 pm
ORD
- BOI
1 stop7h 14m
Multiple Airlines
Sun 5/311:25 pm
BOI
- ORD
1 stop6h 07m
Multiple Airlines
Deal found 5/1![Multiple Airlines logo]()
$320
One-way flights from Chicago to IdahoSearch for one-way flight options from Chicago to Idaho. Find affordable one-way fares based on user searches. Data last updated May 4, 2026.
Search for one-way flight options from Chicago to Idaho. Find affordable one-way fares based on user searches. Data last updated May 4, 2026.
This Kiwi.com deal was found by Cheapflights users on 5/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/189:48 pm
ORD
- GEG
1 stop15h 45m
Frontier
Deal found 5/1![Frontier logo]()
$107
This Trip.com deal was found by Cheapflights users on 4/29. 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 5/139:37 pm
ORD
- BOI
1 stop15h 50m
Frontier
Deal found 4/29![Frontier logo]()
$109
This Kiwi.com deal was found by Cheapflights users on 4/29. 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.
Wed 5/279:37 pm
ORD
- BOI
1 stop15h 53m
Frontier
Deal found 4/29![Frontier logo]()
$112
This CheapOair deal was found by Cheapflights users on 5/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/19:37 pm
ORD
- BOI
1 stop15h 53m
Frontier
Deal found 5/2![Frontier logo]()
$116
This CheapOair deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/209:37 pm
ORD
- BOI
1 stop15h 53m
Frontier
Deal found 4/30![Frontier logo]()
$117
This CheapOair deal was found by Cheapflights users on 4/29. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/189:57 pm
ORD
- BOI
1 stop15h 32m
Frontier
Deal found 4/29![Frontier logo]()
$131
This Alaska Airlines deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/106:00 am
ORD
- GEG
1 stop8h 29m
Alaska Airlines
Deal found 4/30![Alaska Airlines logo]()
$139
This Kiwi.com deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/99:48 pm
ORD
- GEG
1 stop15h 48m
Frontier
Deal found 4/30![Frontier logo]()
$140
This Kiwi.com deal was found by Cheapflights users on 4/29. 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 5/239:37 pm
ORD
- BOI
1 stop15h 53m
Frontier
Deal found 4/29![Frontier logo]()
$141
This Alaska Airlines deal was found by Cheapflights users on 4/29. 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.
Sat 10/247:00 am
ORD
- IDA
1 stop8h 27m
Alaska Airlines
Deal found 4/29![Alaska Airlines logo]()
$146
This Alaska Airlines deal was found by Cheapflights users on 4/29. 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.
Thu 5/282:10 pm
ORD
- BOI
1 stop9h 27m
Alaska Airlines
Deal found 4/29![Alaska Airlines logo]()
$148
This Alaska Airlines deal was found by Cheapflights users on 4/29. 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.
Thu 5/282:10 pm
ORD
- GEG
1 stop9h 35m
Alaska Airlines
Deal found 4/29![Alaska Airlines logo]()
$148
Find flight deals from Chicago to Idaho
Keep the following information in mind while searching for Chicago to Idaho flight deals. Data was last updated May 4, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $244 (Expedia) |
One-way from | $107 (Kiwi.com) |
Popular in | November |
Cheapest in | February |
Average price | $395 |
Good round-trip deal | $375 or less |
Good one-way deal | $222 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from Chicago to Idaho that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated May 4, 2026.
Use the filters below to find and compare flights from Chicago to Idaho that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
ChicagoSpokane
ORD - GEG
ORDGEG
Chicago O'Hare Intl
Tue 6/2
2:10 pm-9:45 pm
1 stop9h 35m
Spokane
Wed 6/3
12:46 pm-10:59 pm
1 stop8h 13m
$295
ChicagoSpokane
ORD - GEG
ORDGEG
Chicago O'Hare Intl
Tue 9/22
7:00 pm-11:59 pm
1 stop6h 59m
Spokane
Wed 9/23
6:00 am-7:03 pm
1 stop11h 03m
$315
ChicagoSpokane
ORD - GEG
ORDGEG
Chicago O'Hare Intl
Thu 6/4
2:10 pm-9:45 pm
1 stop9h 35m
Spokane
Sat 6/6
1:59 pm-11:59 pm
1 stop8h 00m
$315
ChicagoSpokane
ORD - GEG
ORDGEG
Chicago O'Hare Intl
Wed 6/3
7:12 am-12:11 pm
1 stop6h 59m
Spokane
Wed 6/10
2:23 pm-9:25 pm
1 stop5h 02m
$317
ChicagoWest Yellowstone
ORD - WYS
ORDWYS
Chicago O'Hare Intl
Wed 5/27
7:45 am-12:25 pm
1 stop5h 40m
West Yellowstone
Wed 6/3
1:10 pm-9:50 pm
1 stop7h 40m
$324
ChicagoSpokane
ORD - GEG
ORDGEG
Chicago O'Hare Intl
Sat 5/30
9:00 am-9:45 pm
1 stop14h 45m
Spokane
Tue 6/2
1:59 pm-11:59 pm
1 stop8h 00m
$326
ChicagoBoise
MDW - BOI
MDWBOI
Chicago Midway
Tue 6/2
4:00 pm-12:25 am
2 stops9h 25m
Boise Air Term. Gowen Fld
Tue 6/9
7:10 am-11:30 am
Nonstop3h 20m
$330
ChicagoBoise
ORD - BOI
ORDBOI
Chicago O'Hare Intl
Wed 7/22
8:27 am-1:44 pm
1 stop6h 17m
Boise Air Term. Gowen Fld
Tue 7/28
2:50 pm-9:52 pm
1 stop6h 02m
$335
ChicagoSpokane
ORD - GEG
ORDGEG
Chicago O'Hare Intl
Wed 7/15
5:55 pm-11:55 pm
1 stop8h 00m
Spokane
Tue 7/21
5:25 am-1:28 pm
1 stop6h 03m
$335
ChicagoSpokane
ORD - GEG
ORDGEG
Chicago O'Hare Intl
Thu 9/10
7:00 am-11:52 am
1 stop6h 52m
Spokane
Sun 9/13
12:46 pm-11:41 pm
1 stop8h 55m
$335
Showing 1-10 of 60 resultsSorted by cheapest first
Best time to book a flight from Chicago to Idaho
Have a flexible travel schedule? Discover the best time to fly to Idaho from Chicago with our price prediction graph.
ORD-GEG
ORD-BOI
MDW-GEG
ORD-WYS
ORD-IDA
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 Chicago to Idaho
CHI-USID
ORD-GEG
ORD-BOI
MDW-GEG
ORD-WYS
How far ahead should I book a flight from Chicago to Idaho?
Booking 70 days in advance of your planned departure date is, on average, the best time to get cheap flights from Chicago to Idaho. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
What is the cheapest month to book a flight from Chicago to Idaho?
Currently, May is the cheapest month in which you can book a flight from Chicago to Idaho (average of $87). Flying from Chicago to Idaho in March is currently the most expensive (average of $268). 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 CHI to ID?
Find hourly flight availability from Chicago to Idaho. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated May 4, 2026.
It’s typically best to fly out from Chicago to Idaho at noon. Doing so could potentially save you 29% on the flight price compared to flying in the afternoon, which is usually more expensive.
Weekly flight availability from Chicago to Idaho
Explore weekly flight availability from Chicago to Idaho. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated May 4, 2026.
The most flights from CHI to USID are scheduled on a Monday (8 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (4 on average).
How much does it cost to fly round-trip from Chicago to Idaho?
Reviews of airlines servicing Idaho
Get insights into the airlines that provide service to Idaho. 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 Idaho. Reviews last updated May 4, 2026.
Get a feel of what it's like to fly with Alaska Airlines,Southwest, andDelta from Chicago to Idaho 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.
Crew
8.5
Boarding
8.1
Food
7.1
Entertainment
7.0
Comfort
7.8
Overall
7.9
Reviews
1 / 20
8.0
ExcellentEugene,Mar 2026
MFR - SEA
Crew
8.5
Boarding
8.1
Food
7.1
Entertainment
7.0
Comfort
7.8
Overall
7.9
Reviews
1 / 20
8.0
ExcellentEugene,Mar 2026
MFR - SEA
Crew
8.5
Boarding
8.1
Food
7.1
Entertainment
7.0
Comfort
7.8
Overall
7.9
Reviews
1 / 20
8.0
ExcellentEugene,Mar 2026
MFR - SEA
Crew
8.5
Boarding
8.1
Food
7.1
Entertainment
7.0
Comfort
7.8
Overall
7.9
Reviews
1 / 20
8.0
ExcellentEugene,Mar 2026
MFR - SEA
Crew
8.5
Boarding
8.1
Food
7.1
Entertainment
7.0
Comfort
7.8
Overall
7.9
Reviews
1 / 20
8.0
ExcellentEugene,Mar 2026
MFR - SEA
Crew
8.5
Boarding
8.1
Food
7.1
Entertainment
7.0
Comfort
7.8
Overall
7.9
Reviews
1 / 20
8.0
ExcellentEugene,Mar 2026
MFR - SEA
Related info for your journey
Find useful and relevant information for your journey from Chicago to Idaho. 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 Chicago to Idaho
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Idaho by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Chicago to Idaho by cabin class
Find flights from Chicago to Idaho, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Chicago and Idaho flights
Browse other Chicago and Idaho flight options. Last updated on May 4, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Chicago to Idaho flights
Consider these flights traveling from Chicago to Idaho.
Top 4 airlines flying from Chicago to Idaho
Discover the top 4 airlines that operate flights from Chicago to Idaho. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated May 4, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$174 | Average$335 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$249 | Average$445 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$254 | Average$378 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$279 | Average$419 | FlexibilityNo cancel fee | On-time71% |