$130+ 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 9/9. Fares are subject to change and may not be available on all flights or dates of travel.
CHI — BOI
Jul 19 — Jul 261
Round-trip
1 adult, Economy
We work with more than 300 partners to bring you better travel deals
Find cheap flights from Chicago to Idaho with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Chicago to Idaho
Cheapest
Best
Last-minute
One-way
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 June 19, 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 June 19, 2026.
This American Airlines deal was found by Cheapflights users on 6/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/249:40 am
ORD
- IDA
Nonstop3h 40m
American Airlines
Tue 10/271:43 pm
IDA
- ORD
Nonstop3h 17m
American Airlines
Deal found 6/17![American Airlines logo]()
$271
This United Airlines deal was found by Cheapflights users on 6/14. Clicking the “Pick Dates” 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 8/55:00 am
ORD
- IDA
1 stop5h 50m
United Airlines
Tue 8/115:53 pm
IDA
- ORD
1 stop5h 06m
United Airlines
Deal found 6/14![United Airlines logo]()
$291
This United Airlines deal was found by Cheapflights users on 6/14. Clicking the “Pick Dates” 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 7/105:00 am
ORD
- IDA
1 stop5h 50m
United Airlines
Tue 7/145:54 pm
IDA
- ORD
1 stop5h 50m
United Airlines
Deal found 6/14![United Airlines logo]()
$310
This Delta deal was found by Cheapflights users on 6/17. Clicking the “Pick Dates” 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 7/285:55 pm
ORD
- GEG
1 stop8h 00m
Delta
Wed 8/51:23 pm
GEG
- ORD
1 stop6h 07m
Delta
Deal found 6/17![Delta logo]()
$317
This American Airlines deal was found by Cheapflights users on 6/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/121:50 pm
ORD
- GEG
1 stop8h 52m
American Airlines
Sat 8/222:27 pm
GEG
- ORD
Nonstop4h 01m
American Airlines
Deal found 6/18![American Airlines logo]()
$319
This Southwest deal was found by Cheapflights users on 6/18. Clicking the “Pick Dates” 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 8/278:50 pm
MDW
- GEG
Nonstop3h 50m
Southwest
Tue 9/16:15 am
GEG
- MDW
1 stop9h 20m
Southwest
Deal found 6/18![Southwest logo]()
$319
This American Airlines deal was found by Cheapflights users on 6/18. Clicking the “Pick Dates” 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 8/2211:30 am
ORD
- GEG
Nonstop4h 07m
American Airlines
Sat 8/292:27 pm
GEG
- ORD
Nonstop4h 01m
American Airlines
Deal found 6/18![American Airlines logo]()
$321
This Southwest deal was found by Cheapflights users on 6/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/108:50 pm
MDW
- GEG
Nonstop3h 50m
Southwest
Thu 8/136:00 am
GEG
- MDW
Nonstop3h 30m
Southwest
Deal found 6/17![Southwest logo]()
$321
This Delta deal was found by Cheapflights users on 6/17. Clicking the “Pick Dates” 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 7/227:40 pm
ORD
- GEG
1 stop6h 15m
Delta
Wed 8/127:05 am
GEG
- ORD
2 stops12h 25m
Delta
Deal found 6/17![Delta logo]()
$322
This Delta deal was found by Cheapflights users on 6/18. Clicking the “Pick Dates” 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 7/289:54 am
MDW
- GEG
1 stop5h 27m
Delta
Tue 8/45:15 am
GEG
- MDW
2 stops11h 18m
Delta
Deal found 6/18![Delta logo]()
$322
This American Airlines deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” 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 7/411:00 am
ORD
- GEG
Nonstop4h 09m
American Airlines
Sat 8/222:27 pm
GEG
- ORD
Nonstop4h 01m
American Airlines
Deal found 6/16![American Airlines logo]()
$328
This Delta deal was found by Cheapflights users on 6/17. Clicking the “Pick Dates” 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 7/287:06 pm
MDW
- GEG
1 stop6h 00m
Delta
Sat 8/1512:36 pm
GEG
- MDW
1 stop8h 00m
Delta
Deal found 6/17![Delta logo]()
$329
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 June 19, 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 June 19, 2026.
This Southwest deal was found by Cheapflights users on 6/18. Clicking the “Pick Dates” 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 8/278:50 pm
MDW
- GEG
Nonstop3h 50m
Southwest
Tue 9/16:15 am
GEG
- MDW
1 stop9h 20m
Southwest
Deal found 6/18![Southwest logo]()
$319
This Alaska Airlines deal was found by Cheapflights users on 6/14. Clicking the “Pick Dates” 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 9/102:18 pm
ORD
- GEG
1 stop11h 35m
Alaska Airlines
Thu 9/241:36 pm
GEG
- ORD
1 stop8h 23m
Alaska Airlines
Deal found 6/14![Alaska Airlines logo]()
$338
This Delta deal was found by Cheapflights users on 6/17. Clicking the “Pick Dates” 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 9/106:24 pm
ORD
- GEG
1 stop6h 30m
Delta
Thu 9/241:00 pm
GEG
- ORD
1 stop8h 47m
Delta
Deal found 6/17![Delta logo]()
$341
This United Airlines deal was found by Cheapflights users on 6/18. Clicking the “Pick Dates” 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 7/49:00 am
ORD
- IDA
Nonstop3h 45m
United Airlines
Sat 7/114:14 pm
IDA
- ORD
1 stop5h 35m
United Airlines
Deal found 6/18![United Airlines logo]()
$349
This American Airlines deal was found by Cheapflights users on 6/18. Clicking the “Pick Dates” 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 7/3111:30 am
ORD
- BOI
Nonstop3h 50m
American Airlines
Sun 8/23:10 pm
BOI
- ORD
Nonstop3h 49m
American Airlines
Deal found 6/18![American Airlines logo]()
$395
This Southwest deal was found by Cheapflights users on 6/18. Clicking the “Pick Dates” 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 8/138:50 pm
MDW
- GEG
Nonstop3h 50m
Southwest
Mon 8/176:55 am
GEG
- MDW
2 stops8h 05m
Southwest
Deal found 6/18![Southwest logo]()
$336
This Delta deal was found by Cheapflights users on 6/18. Clicking the “Pick Dates” 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 8/135:56 pm
ORD
- GEG
1 stop8h 03m
Delta
Mon 8/171:23 pm
GEG
- ORD
1 stop6h 07m
Delta
Deal found 6/18![Delta logo]()
$341
This United Airlines deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” 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.
Sun 8/94:21 pm
ORD
- JAC
Nonstop3h 21m
United Airlines
Thu 8/134:25 pm
JAC
- ORD
1 stop6h 34m
United Airlines
Deal found 6/16![United Airlines logo]()
$351
This Alaska Airlines deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” 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 8/66:42 pm
ORD
- GEG
1 stop7h 17m
Alaska Airlines
Mon 8/1012:42 pm
GEG
- ORD
1 stop14h 18m
Alaska Airlines
Deal found 6/16![Alaska Airlines logo]()
$375
This Southwest deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” 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 9/216:15 am
MDW
- GEG
2 stops11h 20m
Southwest
Sat 9/2611:05 am
GEG
- MDW
1 stop7h 40m
Southwest
Deal found 6/16![Southwest logo]()
$346
This Delta deal was found by Cheapflights users on 6/15. Clicking the “Pick Dates” 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 8/151:51 pm
MDW
- BOI
2 stops9h 55m
Delta
Wed 8/191:59 pm
BOI
- MDW
1 stop7h 37m
Delta
Deal found 6/15![Delta logo]()
$350
This United Airlines deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” 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 8/34:21 pm
ORD
- JAC
Nonstop3h 21m
United Airlines
Thu 8/64:23 pm
JAC
- ORD
1 stop7h 21m
United Airlines
Deal found 6/16![United Airlines logo]()
$353
This Delta deal was found by Cheapflights users on 6/15. Clicking the “Pick Dates” 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 8/157:48 am
ORD
- BOI
2 stops12h 00m
Delta
Wed 8/193:29 pm
BOI
- ORD
1 stop7h 00m
Delta
Deal found 6/15![Delta logo]()
$350
This United Airlines deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” 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 6/306:00 am
ORD
- WYS
1 stop8h 32m
United Airlines
Fri 7/35:45 pm
WYS
- ORD
1 stop5h 59m
United Airlines
Deal found 6/16![United Airlines logo]()
$368
This Southwest deal was found by Cheapflights users on 6/17. Clicking the “Pick Dates” 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.
Sun 8/3012:20 pm
MDW
- GEG
Nonstop3h 50m
Southwest
Sat 9/58:00 am
GEG
- MDW
1 stop7h 35m
Southwest
Deal found 6/17![Southwest logo]()
$368
This Delta deal was found by Cheapflights users on 6/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/152:05 pm
ORD
- BOI
2 stops9h 20m
Delta
Wed 9/308:22 am
BOI
- ORD
2 stops12h 25m
Delta
Deal found 6/14![Delta logo]()
$355
This United Airlines deal was found by Cheapflights users on 6/17. Clicking the “Pick Dates” 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.
Sun 8/309:15 am
ORD
- GEG
Nonstop4h 24m
United Airlines
Sat 9/51:37 pm
GEG
- ORD
1 stop8h 22m
United Airlines
Deal found 6/17![United Airlines logo]()
$368
This Southwest deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” 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 7/175:20 am
MDW
- BOI
1 stop7h 25m
Southwest
Wed 7/224:20 pm
BOI
- MDW
1 stop6h 50m
Southwest
Deal found 6/16![Southwest logo]()
$375
This Delta deal was found by Cheapflights users on 6/14. Clicking the “Pick Dates” 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 8/55:56 pm
ORD
- GEG
1 stop8h 03m
Delta
Sun 8/161:23 pm
GEG
- ORD
1 stop6h 07m
Delta
Deal found 6/14![Delta logo]()
$366
This American Airlines deal was found by Cheapflights users on 6/18. Clicking the “Pick Dates” 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 9/49:00 am
ORD
- JAC
1 stop9h 37m
American Airlines
Sun 9/63:38 pm
JAC
- ORD
Nonstop3h 27m
American Airlines
Deal found 6/18![American Airlines logo]()
$553
This Southwest deal was found by Cheapflights users on 6/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/104:55 pm
MDW
- BOI
1 stop8h 00m
Southwest
Tue 9/157:40 am
BOI
- MDW
2 stops8h 55m
Southwest
Deal found 6/15![Southwest logo]()
$380
This United Airlines deal was found by Cheapflights users on 6/15. Clicking the “Pick Dates” 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 8/278:40 am
ORD
- BOI
Nonstop3h 48m
United Airlines
Sun 8/3012:24 pm
BOI
- ORD
Nonstop3h 39m
United Airlines
Deal found 6/15![United Airlines logo]()
$385
This Delta deal was found by Cheapflights users on 6/17. Clicking the “Pick Dates” 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 7/297:45 am
ORD
- GEG
1 stop6h 27m
Delta
Sat 8/81:20 pm
GEG
- ORD
1 stop6h 10m
Delta
Deal found 6/17![Delta logo]()
$368
This Southwest deal was found by Cheapflights users on 6/18. Clicking the “Pick Dates” 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 7/32:40 pm
MDW
- BOI
Nonstop3h 35m
Southwest
Fri 7/107:40 pm
BOI
- MDW
1 stop8h 45m
Southwest
Deal found 6/18![Southwest logo]()
$382
This United Airlines deal was found by Cheapflights users on 6/18. Clicking the “Pick Dates” 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 6/275:00 am
ORD
- IDA
1 stop5h 50m
United Airlines
Sat 7/410:35 am
IDA
- ORD
1 stop7h 11m
United Airlines
Deal found 6/18![United Airlines logo]()
$390
This Delta deal was found by Cheapflights users on 6/18. Clicking the “Pick Dates” 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 8/127:25 pm
MDW
- GEG
1 stop5h 44m
Delta
Sat 8/2212:36 pm
GEG
- MDW
1 stop8h 00m
Delta
Deal found 6/18![Delta logo]()
$368
This Southwest deal was found by Cheapflights users on 6/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/125:40 am
MDW
- GEG
1 stop7h 05m
Southwest
Fri 9/1810:55 am
GEG
- MDW
2 stops9h 00m
Southwest
Deal found 6/15![Southwest logo]()
$383
This Alaska Airlines deal was found by Cheapflights users on 6/15. Clicking the “Pick Dates” 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 8/175:42 pm
ORD
- JAC
1 stop18h 38m
Alaska Airlines
Fri 8/2811:55 am
JAC
- ORD
2 stops24h 27m
Alaska Airlines
Deal found 6/15![Alaska Airlines logo]()
$630
This United Airlines deal was found by Cheapflights users on 6/17. Clicking the “Pick Dates” 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 8/135:00 am
ORD
- JAC
1 stop5h 43m
United Airlines
Tue 8/184:25 pm
JAC
- ORD
1 stop5h 21m
United Airlines
Deal found 6/17![United Airlines logo]()
$403
This Delta deal was found by Cheapflights users on 6/14. Clicking the “Pick Dates” 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 7/282:07 pm
ORD
- BOI
2 stops10h 39m
Delta
Sun 8/211:10 pm
BOI
- ORD
1 stop8h 34m
Delta
Deal found 6/14![Delta logo]()
$380
Last-minute flights from Chicago to IdahoDiscover last-minute flight deals from Chicago to Idaho. Data last updated June 19, 2026 and is based on user searches.
Discover last-minute flight deals from Chicago to Idaho. Data last updated June 19, 2026 and is based on user searches.
This American Airlines deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” 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 7/411:00 am
ORD
- GEG
Nonstop4h 09m
American Airlines
Sat 8/222:27 pm
GEG
- ORD
Nonstop4h 01m
American Airlines
Deal found 6/16![American Airlines logo]()
$328
This United Airlines deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” 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 7/49:27 am
ORD
- GEG
Nonstop4h 21m
United Airlines
Sat 8/221:37 pm
GEG
- ORD
1 stop5h 53m
United Airlines
Deal found 6/16![United Airlines logo]()
$338
This Expedia deal was found by Cheapflights users on 6/17. Clicking the “Pick Dates” 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 7/76:00 am
ORD
- BOI
1 stop9h 07m
Multiple Airlines
Tue 7/141:24 pm
BOI
- ORD
1 stop6h 28m
Multiple Airlines
Deal found 6/17![Multiple Airlines logo]()
$337
This United Airlines deal was found by Cheapflights users on 6/14. Clicking the “Pick Dates” 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 7/105:00 am
ORD
- IDA
1 stop5h 50m
United Airlines
Tue 7/145:54 pm
IDA
- ORD
1 stop5h 50m
United Airlines
Deal found 6/14![United Airlines logo]()
$310
This Delta deal was found by Cheapflights users on 6/17. Clicking the “Pick Dates” 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 7/227:40 pm
ORD
- GEG
1 stop6h 15m
Delta
Wed 8/127:05 am
GEG
- ORD
2 stops12h 25m
Delta
Deal found 6/17![Delta logo]()
$322
This Delta deal was found by Cheapflights users on 6/17. Clicking the “Pick Dates” 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 7/255:00 pm
ORD
- GEG
1 stop9h 02m
Delta
Tue 8/116:16 am
GEG
- ORD
1 stop9h 24m
Delta
Deal found 6/17![Delta logo]()
$336
This Delta deal was found by Cheapflights users on 6/17. Clicking the “Pick Dates” 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 7/287:45 am
ORD
- GEG
1 stop6h 27m
Delta
Tue 8/111:00 pm
GEG
- ORD
1 stop8h 29m
Delta
Deal found 6/17![Delta logo]()
$317
This Delta deal was found by Cheapflights users on 6/18. Clicking the “Pick Dates” 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 7/289:54 am
MDW
- GEG
1 stop5h 27m
Delta
Tue 8/45:15 am
GEG
- MDW
2 stops11h 18m
Delta
Deal found 6/18![Delta logo]()
$322
This Delta deal was found by Cheapflights users on 6/17. Clicking the “Pick Dates” 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 7/287:06 pm
MDW
- GEG
1 stop6h 00m
Delta
Sat 8/1512:36 pm
GEG
- MDW
1 stop8h 00m
Delta
Deal found 6/17![Delta logo]()
$329
This Delta deal was found by Cheapflights users on 6/18. Clicking the “Pick Dates” 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 7/285:55 pm
ORD
- GEG
1 stop8h 00m
Delta
Sat 8/81:00 pm
GEG
- ORD
1 stop8h 29m
Delta
Deal found 6/18![Delta logo]()
$329
This Delta deal was found by Cheapflights users on 6/17. Clicking the “Pick Dates” 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 7/287:06 pm
MDW
- GEG
1 stop6h 00m
Delta
Thu 8/67:54 pm
GEG
- MDW
2 stops10h 45m
Delta
Deal found 6/17![Delta logo]()
$334
This CheapOair deal was found by Cheapflights users on 6/17. Clicking the “Pick Dates” 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.
Fri 7/318:20 pm
ORD
- BOI
1 stop14h 17m
Alaska Airlines
Sat 8/88:00 pm
BOI
- ORD
1 stop16h 21m
Alaska Airlines
Deal found 6/17![Alaska Airlines logo]()
$335
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 June 19, 2026.
Search for one-way flight options from Chicago to Idaho. Find affordable one-way fares based on user searches. Data last updated June 19, 2026.
This Kiwi.com deal was found by Cheapflights users on 6/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/96:50 am
ORD
- GEG
1 stop28h 29m
Multiple Airlines
Deal found 6/18![Multiple Airlines logo]()
$130
This Priceline deal was found by Cheapflights users on 6/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/146:50 am
ORD
- BOI
1 stop9h 07m
Frontier
Deal found 6/17![Frontier logo]()
$133
This CheapOair deal was found by Cheapflights users on 6/15. Clicking the “Pick Dates” 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 7/159:57 pm
ORD
- BOI
1 stop15h 32m
Frontier
Deal found 6/15![Frontier logo]()
$134
This CheapOair deal was found by Cheapflights users on 6/15. Clicking the “Pick Dates” 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 8/129:57 pm
ORD
- BOI
1 stop15h 32m
Frontier
Deal found 6/15![Frontier logo]()
$136
This Expedia deal was found by Cheapflights users on 6/15. Clicking the “Pick Dates” 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.
Sun 9/131:02 pm
ORD
- BOI
1 stop26h 55m
Frontier
Deal found 6/15![Frontier logo]()
$139
This CheapOair deal was found by Cheapflights users on 6/18. Clicking the “Pick Dates” 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 8/89:57 pm
ORD
- BOI
1 stop15h 32m
Frontier
Deal found 6/18![Frontier logo]()
$144
This Kiwi.com deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/1510:40 pm
ORD
- GEG
3 stops36h 39m
Multiple Airlines
Deal found 6/16![Multiple Airlines logo]()
$146
This Frontier deal was found by Cheapflights users on 6/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/106:50 am
ORD
- BOI
1 stop9h 07m
Frontier
Deal found 6/15![Frontier logo]()
$149
This American Airlines deal was found by Cheapflights users on 6/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/211:30 am
ORD
- GEG
Nonstop4h 07m
American Airlines
Deal found 6/18![American Airlines logo]()
$149
This Kiwi.com deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/166:50 am
ORD
- GEG
1 stop28h 29m
Multiple Airlines
Deal found 6/16![Multiple Airlines logo]()
$150
This Mundotrip deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mundotrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/139:57 pm
ORD
- BOI
1 stop15h 32m
Frontier
Deal found 6/16![Frontier logo]()
$151
This Alaska Airlines deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” 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 8/136:42 pm
ORD
- GEG
1 stop7h 17m
Alaska Airlines
Deal found 6/16![Alaska Airlines logo]()
$151
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 June 19, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $271 (American Airlines) |
One-way from | $130 (Kiwi.com) |
Popular in | June |
Cheapest in | February |
Average price | $469 |
Good round-trip deal | $380 or less |
Good one-way deal | $243 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 June 19, 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
MDW - GEG
MDWGEG
Chicago Midway
Thu 8/27
8:50 pm-10:40 pm
Nonstop3h 50m
Spokane
Tue 9/1
6:15 am-5:35 pm
1 stop9h 20m
$319
ChicagoSpokane
MDW - GEG
MDWGEG
Chicago Midway
Thu 8/13
8:50 pm-10:40 pm
Nonstop3h 50m
Spokane
Mon 8/17
6:55 am-5:00 pm
2 stops8h 05m
$336
ChicagoSpokane
ORD - GEG
ORDGEG
Chicago O'Hare Intl
Thu 9/10
2:18 pm-11:53 pm
1 stop11h 35m
Spokane
Thu 9/24
1:36 pm-11:59 pm
1 stop8h 23m
$338
ChicagoSpokane
ORD - GEG
ORDGEG
Chicago O'Hare Intl
Thu 9/10
6:24 pm-10:54 pm
1 stop6h 30m
Spokane
Thu 9/24
1:00 pm-11:47 pm
1 stop8h 47m
$341
ChicagoSpokane
ORD - GEG
ORDGEG
Chicago O'Hare Intl
Thu 8/13
5:56 pm-11:59 pm
1 stop8h 03m
Spokane
Mon 8/17
1:23 pm-9:30 pm
1 stop6h 07m
$341
ChicagoSpokane
MDW - GEG
MDWGEG
Chicago Midway
Mon 9/21
6:15 am-3:35 pm
2 stops11h 20m
Spokane
Sat 9/26
11:05 am-8:45 pm
1 stop7h 40m
$346
ChicagoIdaho Falls
ORD - IDA
ORDIDA
Chicago O'Hare Intl
Sat 7/4
9:00 am-11:45 am
Nonstop3h 45m
Idaho Falls Fanning Field
Sat 7/11
4:14 pm-10:49 pm
1 stop5h 35m
$349
ChicagoBoise
MDW - BOI
MDWBOI
Chicago Midway
Sat 8/15
1:51 pm-10:46 pm
2 stops9h 55m
Boise Air Term. Gowen Fld
Wed 8/19
1:59 pm-10:36 pm
1 stop7h 37m
$350
ChicagoBoise
ORD - BOI
ORDBOI
Chicago O'Hare Intl
Sat 8/15
7:48 am-6:48 pm
2 stops12h 00m
Boise Air Term. Gowen Fld
Wed 8/19
3:29 pm-11:29 pm
1 stop7h 00m
$350
ChicagoJackson
ORD - JAC
ORDJAC
Chicago O'Hare Intl
Sun 8/9
4:21 pm-6:42 pm
Nonstop3h 21m
Jackson Hole
Thu 8/13
4:25 pm-11:59 pm
1 stop6h 34m
$351
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-IDA
ORD-GEG
MDW-GEG
ORD-JAC
MDW-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-IDA
ORD-GEG
MDW-GEG
ORD-JAC
What is the cheapest month to book a flight from Chicago to Idaho?
Currently, July is the cheapest month in which you can book a flight from Chicago to Idaho (average of $91). 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 June 19, 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 June 19, 2026.
The most flights from CHI to USID are scheduled on a Monday (8 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (7 on average).
How much does it cost to fly round-trip from Chicago to Idaho?
How far ahead should I book a flight from Chicago to Idaho?
Booking 62 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.
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 June 19, 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.
Overall
7.9
Boarding
8.1
Comfort
7.8
Crew
8.5
Food
7.1
Entertainment
7.0
Reviews
1 / 20
4.0
OkayAnonymous,Jun 2026
SEA - RNO
Overall
7.9
Boarding
8.1
Comfort
7.8
Crew
8.5
Food
7.1
Entertainment
7.0
Reviews
1 / 20
4.0
OkayAnonymous,Jun 2026
SEA - RNO
Overall
7.9
Boarding
8.1
Comfort
7.8
Crew
8.5
Food
7.1
Entertainment
7.0
Reviews
1 / 20
4.0
OkayAnonymous,Jun 2026
SEA - RNO
Overall
7.9
Boarding
8.1
Comfort
7.8
Crew
8.5
Food
7.1
Entertainment
7.0
Reviews
1 / 20
4.0
OkayAnonymous,Jun 2026
SEA - RNO
Overall
7.9
Boarding
8.1
Comfort
7.8
Crew
8.5
Food
7.1
Entertainment
7.0
Reviews
1 / 20
4.0
OkayAnonymous,Jun 2026
SEA - RNO
Overall
7.9
Boarding
8.1
Comfort
7.8
Crew
8.5
Food
7.1
Entertainment
7.0
Reviews
1 / 20
4.0
OkayAnonymous,Jun 2026
SEA - RNO
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.
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
Alternative routes
Complete your trip
Flights by cabin class
Other flight options
Popular flights
Top destinations
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 June 19, 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 June 19, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$263 | Average$446 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$268 | Average$403 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$284 | Average$424 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$288 | Average$439 | FlexibilityNo cancel fee | On-time63% |