$89+ Cheap flights from Boise (BOI) to Chicago (CHI)
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 11/16. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — CHI
Sep 16 — Sep 231
Round-trip
1 adult, Economy
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Find cheap flights from Boise to Chicago 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.Cheapflights Tip: The best prices from Boise Air Term. Gowen Fld to Chicago are usually found in February or November, booked 48 days in advance, depart on a Thursday or Friday and return on a Wednesday
Cheap flight deals from Boise to Chicago
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Cheapest flights from Boise to ChicagoExplore the most affordable flight options available from Boise to Chicago. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 17, 2026.
Explore the most affordable flight options available from Boise to Chicago. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 17, 2026.
This Kiwi.com deal was found by Cheapflights users on 8/14. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/142:50 pm -
1 stop13h 48m
Wed 9/166:30 am -
2 stops32h 25m
Deal found 8/14![Frontier logo]()
$181
This Kiwi.com deal was found by Cheapflights users on 8/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/102:50 pm -
1 stop13h 48m
Wed 9/166:30 am -
2 stops32h 25m
Deal found 8/12![Frontier logo]()
$222
This Delta deal was found by Cheapflights users on 8/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/122:11 pm -
1 stop7h 33m
Sat 9/192:00 pm -
1 stop7h 57m
Deal found 8/12![Delta logo]()
$239
This Delta deal was found by Cheapflights users on 8/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/238:55 am -
1 stop8h 06m
Tue 9/297:40 pm -
1 stop5h 18m
Deal found 8/12![Delta logo]()
$239
This CheapOair deal was found by Cheapflights users on 8/12. Clicking the “Pick Dates” 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.
Thu 10/12:50 pm -
1 stop13h 48m
Sun 10/48:55 pm -
1 stop18h 00m
Deal found 8/12![Frontier logo]()
$241
This Delta deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/236:45 am -
2 stops10h 19m
Sat 9/268:25 am -
2 stops11h 15m
Deal found 8/13![Delta logo]()
$249
This Southwest deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” 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 9/143:45 pm -
1 stop7h 05m
Sat 9/195:40 am -
1 stop8h 20m
Deal found 8/13![Southwest logo]()
$257
This American Airlines deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” 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 9/233:21 pm -
Nonstop3h 55m
Sat 9/2611:35 am -
Nonstop3h 56m
Deal found 8/13![American Airlines logo]()
$257
This Delta deal was found by Cheapflights users on 8/12. Clicking the “Pick Dates” 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 11/55:30 am -
1 stop5h 17m
Sat 11/71:27 pm -
2 stops8h 09m
Deal found 8/12![Delta logo]()
$262
This Southwest deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” 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 11/93:55 pm -
1 stop5h 05m
Tue 11/1012:50 pm -
2 stops10h 40m
Deal found 8/13![Southwest logo]()
$263
This Delta deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” 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.
Mon 11/91:38 pm -
1 stop8h 18m
Mon 11/165:25 pm -
1 stop7h 31m
Deal found 8/13![Delta logo]()
$275
This Southwest deal was found by Cheapflights users on 8/12. Clicking the “Pick Dates” 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 10/12:00 pm -
2 stops10h 10m
Mon 10/55:40 am -
1 stop6h 40m
Deal found 8/12![Southwest logo]()
$276
Best flights from Boise to ChicagoDiscover carefully curated flight deals from Boise to Chicago that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 17, 2026.
Discover carefully curated flight deals from Boise to Chicago that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 17, 2026.
This Delta deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” 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 11/41:06 pm -
1 stop7h 54m
Tue 11/107:35 am -
2 stops12h 02m
Deal found 8/13![Delta logo]()
$244
This Alaska Airlines deal was found by Cheapflights users on 8/16. 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 12/106:00 am -
1 stop6h 09m
Sun 12/136:00 am -
1 stop7h 21m
Deal found 8/16![Alaska Airlines logo]()
$339
This Southwest deal was found by Cheapflights users on 8/14. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/142:55 pm -
1 stop7h 55m
Wed 9/166:40 am -
1 stop5h 15m
Deal found 8/14![Southwest logo]()
$342
This Delta deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/98:55 am -
1 stop8h 06m
Sat 9/197:00 am -
1 stop9h 16m
Deal found 8/13![Delta logo]()
$264
This Delta deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” 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 10/110:34 am -
2 stops10h 21m
Mon 10/51:55 pm -
2 stops11h 04m
Deal found 8/13![Delta logo]()
$286
This Delta deal was found by Cheapflights users on 8/12. Clicking the “Pick Dates” 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 10/11:06 pm -
1 stop7h 49m
Fri 10/28:25 am -
1 stop6h 19m
Deal found 8/12![Delta logo]()
$312
This Southwest deal was found by Cheapflights users on 8/15. 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 11/215:45 pm -
2 stops10h 55m
Thu 11/2610:10 am -
2 stops8h 15m
Deal found 8/15![Southwest logo]()
$388
This Delta deal was found by Cheapflights users on 8/12. Clicking the “Pick Dates” 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 10/166:00 am -
1 stop4h 55m
Mon 10/193:30 pm -
2 stops9h 29m
Deal found 8/12![Delta logo]()
$317
This Southwest deal was found by Cheapflights users on 8/12. Clicking the “Pick Dates” 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 9/23:40 pm -
1 stop6h 40m
Sat 9/55:05 pm -
1 stop5h 30m
Deal found 8/12![Southwest logo]()
$391
This Delta deal was found by Cheapflights users on 8/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/262:11 pm -
1 stop7h 33m
Mon 9/281:00 pm -
1 stop10h 00m
Deal found 8/12![Delta logo]()
$319
This Southwest deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” 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 1/210:15 pm -
1 stop6h 30m
Wed 1/66:10 am -
1 stop5h 50m
Deal found 8/13![Southwest logo]()
$394
This Delta deal was found by Cheapflights users on 8/12. Clicking the “Pick Dates” 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 9/41:59 pm -
1 stop7h 37m
Mon 9/77:25 pm -
1 stop5h 34m
Deal found 8/12![Delta logo]()
$321
This Delta deal was found by Cheapflights users on 8/12. Clicking the “Pick Dates” 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 9/41:59 pm -
1 stop8h 58m
Wed 9/92:05 pm -
2 stops9h 29m
Deal found 8/12![Delta logo]()
$326
This Delta deal was found by Cheapflights users on 8/16. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/122:11 pm -
1 stop7h 33m
Sat 9/192:00 pm -
1 stop7h 57m
Deal found 8/16![Delta logo]()
$333
This Delta deal was found by Cheapflights users on 8/15. 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.
Tue 9/88:55 am -
1 stop8h 06m
Thu 9/1712:50 pm -
1 stop6h 49m
Deal found 8/15![Delta logo]()
$333
This Delta deal was found by Cheapflights users on 8/12. Clicking the “Pick Dates” 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.
Mon 12/212:35 pm -
1 stop8h 11m
Tue 12/297:30 am -
1 stop5h 47m
Deal found 8/12![Delta logo]()
$337
This Delta deal was found by Cheapflights users on 8/15. 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.
Tue 9/293:28 pm -
1 stop7h 29m
Thu 10/12:05 pm -
2 stops10h 53m
Deal found 8/15![Delta logo]()
$338
This Delta deal was found by Cheapflights users on 8/14. 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 10/213:36 pm -
1 stop6h 58m
Sat 10/2412:29 pm -
2 stops10h 39m
Deal found 8/14![Delta logo]()
$338
This Delta deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/21:59 pm -
1 stop7h 37m
Sat 9/59:24 am -
2 stops9h 28m
Deal found 8/13![Delta logo]()
$350
Last-minute flights from Boise to ChicagoDiscover last-minute flight deals from Boise to Chicago. Data last updated August 17, 2026 and is based on user searches.
Discover last-minute flight deals from Boise to Chicago. Data last updated August 17, 2026 and is based on user searches.
This Delta deal was found by Cheapflights users on 8/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/21:59 pm -
1 stop7h 37m
Sat 9/56:05 am -
1 stop7h 44m
Deal found 8/12![Delta logo]()
$289
This Delta deal was found by Cheapflights users on 8/12. Clicking the “Pick Dates” 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 9/41:59 pm -
1 stop7h 37m
Mon 9/77:25 pm -
1 stop5h 34m
Deal found 8/12![Delta logo]()
$321
This Kiwi.com deal was found by Cheapflights users on 8/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/102:50 pm -
1 stop13h 48m
Wed 9/166:30 am -
2 stops32h 25m
Deal found 8/12![Frontier logo]()
$222
This Delta deal was found by Cheapflights users on 8/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/122:11 pm -
1 stop7h 33m
Sat 9/192:00 pm -
1 stop7h 57m
Deal found 8/12![Delta logo]()
$239
This Kiwi.com deal was found by Cheapflights users on 8/14. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/142:50 pm -
1 stop13h 48m
Wed 9/166:30 am -
2 stops32h 25m
Deal found 8/14![Frontier logo]()
$181
This Southwest deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” 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 9/143:45 pm -
1 stop7h 05m
Sat 9/195:40 am -
1 stop8h 20m
Deal found 8/13![Southwest logo]()
$257
This Delta deal was found by Cheapflights users on 8/12. Clicking the “Pick Dates” 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 9/225:30 am -
1 stop6h 50m
Thu 9/246:05 am -
1 stop7h 56m
Deal found 8/12![Delta logo]()
$319
This Delta deal was found by Cheapflights users on 8/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/238:55 am -
1 stop8h 06m
Tue 9/297:40 pm -
1 stop5h 18m
Deal found 8/12![Delta logo]()
$239
This Delta deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/236:45 am -
2 stops10h 19m
Sat 9/268:25 am -
2 stops11h 15m
Deal found 8/13![Delta logo]()
$249
This American Airlines deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” 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 9/233:21 pm -
Nonstop3h 55m
Sat 9/2611:35 am -
Nonstop3h 56m
Deal found 8/13![American Airlines logo]()
$257
This Delta deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” 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.
Mon 9/2811:10 pm -
1 stop9h 39m
Wed 9/302:00 pm -
2 stops10h 58m
Deal found 8/13![Delta logo]()
$312
This Delta deal was found by Cheapflights users on 8/12. Clicking the “Pick Dates” 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 9/291:06 pm -
1 stop7h 49m
Thu 10/112:50 pm -
1 stop6h 49m
Deal found 8/12![Delta logo]()
$258
One-way flights from Boise to ChicagoSearch for one-way flight options from Boise to Chicago. Find affordable one-way fares based on user searches. Data last updated August 17, 2026.
Search for one-way flight options from Boise to Chicago. Find affordable one-way fares based on user searches. Data last updated August 17, 2026.
This Kiwi.com deal was found by Cheapflights users on 8/14. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/163:52 pm -
1 stop12h 43m
Deal found 8/14![Frontier logo]()
$89
This Kiwi.com deal was found by Cheapflights users on 8/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/142:50 pm -
1 stop13h 48m
Deal found 8/12![Frontier logo]()
$94
This Kiwi.com deal was found by Cheapflights users on 8/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/102:50 pm -
1 stop13h 48m
Deal found 8/12![Frontier logo]()
$105
This Kiwi.com deal was found by Cheapflights users on 8/14. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/122:50 pm -
2 stops32h 34m
Deal found 8/14![Frontier logo]()
$106
This Kiwi.com deal was found by Cheapflights users on 8/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/12:50 pm -
1 stop13h 48m
Deal found 8/12![Frontier logo]()
$108
This Kiwi.com deal was found by Cheapflights users on 8/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/22:50 pm -
2 stops32h 33m
Deal found 8/12![Frontier logo]()
$113
This Kiwi.com deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/142:50 pm -
2 stops25h 56m
Deal found 8/13![Frontier logo]()
$117
This Delta deal was found by Cheapflights users on 8/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/122:11 pm -
1 stop7h 33m
Deal found 8/12![Delta logo]()
$120
This Kiwi.com deal was found by Cheapflights users on 8/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/122:50 pm -
2 stops20h 27m
Deal found 8/12![Frontier logo]()
$124
This Delta deal was found by Cheapflights users on 8/12. Clicking the “Pick Dates” 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 11/106:00 am -
2 stops9h 39m
Deal found 8/12![Delta logo]()
$125
This Southwest deal was found by Cheapflights users on 8/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/1112:10 pm -
Nonstop3h 20m
Deal found 8/12![Southwest logo]()
$129
This Kiwi.com deal was found by Cheapflights users on 8/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/22:50 pm -
2 stops26h 01m
Deal found 8/12![Frontier logo]()
$136
Find flight deals from Boise to Chicago
Discover tips and strategies to find the most affordable flight options for your journey from Boise (BOI) to Chicago (CHI). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated August 17, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $181 (Kiwi.com) |
One-way from | $89 (Kiwi.com) |
Popular in | March |
Cheapest in | February |
Average price | $384 |
Good round-trip deal | $408 or less |
Good one-way deal | $253 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from Boise to Chicago that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated August 17, 2026.
Use the filters below to find and compare flights from Boise to Chicago that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
BoiseChicago
BOI Boise Air Term. Gowen Fld - ORD Chicago O'Hare Intl
BOIORD
Boise Air Term. Gowen Fld
Wed 11/4
1:06 pm-10:00 pm
1 stop7h 54m
Chicago O'Hare Intl
Tue 11/10
7:35 am-6:37 pm
2 stops12h 02m
$244
BoiseChicago
BOI Boise Air Term. Gowen Fld - ORD Chicago O'Hare Intl
BOIORD
Boise Air Term. Gowen Fld
Wed 9/9
8:55 am-6:01 pm
1 stop8h 06m
Chicago O'Hare Intl
Sat 9/19
7:00 am-3:16 pm
1 stop9h 16m
$264
BoiseChicago
BOI Boise Air Term. Gowen Fld - ORD Chicago O'Hare Intl
BOIORD
Boise Air Term. Gowen Fld
Thu 10/1
10:34 am-9:55 pm
2 stops10h 21m
Chicago O'Hare Intl
Mon 10/5
1:55 pm-11:59 pm
2 stops11h 04m
$286
BoiseChicago
BOI Boise Air Term. Gowen Fld - ORD Chicago O'Hare Intl
BOIORD
Boise Air Term. Gowen Fld
Thu 10/1
1:06 pm-9:55 pm
1 stop7h 49m
Chicago O'Hare Intl
Fri 10/2
8:25 am-1:44 pm
1 stop6h 19m
$312
BoiseChicago
BOI Boise Air Term. Gowen Fld - ORD Chicago O'Hare Intl
BOIORD
Boise Air Term. Gowen Fld
Fri 10/16
6:00 am-11:55 am
1 stop4h 55m
Chicago O'Hare Intl
Mon 10/19
3:30 pm-11:59 pm
2 stops9h 29m
$317
BoiseChicago
BOI Boise Air Term. Gowen Fld - MDW Chicago Midway
BOIMDW
Boise Air Term. Gowen Fld
Sat 9/26
2:11 pm-10:44 pm
1 stop7h 33m
Chicago Midway
Mon 9/28
1:00 pm-10:00 pm
1 stop10h 00m
$319
BoiseChicago
BOI Boise Air Term. Gowen Fld - MDW Chicago Midway
BOIMDW
Boise Air Term. Gowen Fld
Fri 9/4
1:59 pm-10:36 pm
1 stop7h 37m
Chicago Midway
Mon 9/7
7:25 pm-11:59 pm
1 stop5h 34m
$321
BoiseChicago
BOI Boise Air Term. Gowen Fld - ORD Chicago O'Hare Intl
BOIORD
Boise Air Term. Gowen Fld
Fri 9/4
1:59 pm-11:57 pm
1 stop8h 58m
Chicago O'Hare Intl
Wed 9/9
2:05 pm-10:34 pm
2 stops9h 29m
$326
BoiseChicago
BOI Boise Air Term. Gowen Fld - MDW Chicago Midway
BOIMDW
Boise Air Term. Gowen Fld
Sat 9/12
2:11 pm-10:44 pm
1 stop7h 33m
Chicago Midway
Sat 9/19
2:00 pm-8:57 pm
1 stop7h 57m
$333
BoiseChicago
BOI Boise Air Term. Gowen Fld - ORD Chicago O'Hare Intl
BOIORD
Boise Air Term. Gowen Fld
Tue 9/8
8:55 am-6:01 pm
1 stop8h 06m
Chicago O'Hare Intl
Thu 9/17
12:50 pm-6:39 pm
1 stop6h 49m
$333
Showing 1-10 of 38 resultsSorted by cheapest first
Compare providers for flights from Boise to Chicago
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Boise to Chicago in August.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Boise-Chicago flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Boise-Chicago flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Boise-Chicago flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Boise-Chicago flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Boise-Chicago flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
Best time to book a flight from Boise to Chicago
Have a flexible travel schedule? Discover the best time to fly to Chicago from Boise with our price prediction graph.
BOI-CHI
BOI-MDW
BOI-ORD
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 Boise to Chicago
BOI-CHI
BOI-MDW
BOI-ORD
What is the cheapest month to book a flight from Boise to Chicago?
Currently, February is the cheapest month in which you can book a flight from Boise to Chicago (average of $340). Flying from Boise to Chicago in March is currently the most expensive (average of $474). 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 BOI to CHI?
Find hourly flight availability from Boise to Chicago. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated August 17, 2026.
It’s typically best to fly out from Boise to Chicago in the afternoon. Doing so could potentially save you 27% on the flight price compared to flying at noon, which is usually more expensive.
Weekly flight availability from Boise to Chicago
Explore weekly flight availability from Boise to Chicago. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated August 17, 2026.
The most flights from BOI to CHI are scheduled on a Saturday (9 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (7 on average).
How much does it cost to fly round-trip from Boise to Chicago?
Airfare is below average for this route at the moment.
Boise to Chicago flights typically cost between $343 and $467 in September.The cheapest round-trip price found within the last 5 days was $181 on Frontier (Sep 14-Sep 16).
How far ahead should I book a flight from Boise to Chicago?
To ensure you get the cheapest price possible for a flight from Boise to Chicago, you should look to book at least 77 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.
Reviews of airlines servicing Chicago
Get insights into the airlines that provide service to Chicago. 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 Chicago. Reviews last updated August 17, 2026.
Get a feel of what it's like to fly with Southwest,Alaska Airlines, andDelta from Boise to Chicago by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Crew
8.6
Food
7.0
Boarding
8.1
Entertainment
7.5
Comfort
8.0
Overall
8.0
Reviews
1 / 20
6.0
GoodReza,Jun 2026
TPA - MDW
Crew
8.6
Food
7.0
Boarding
8.1
Entertainment
7.5
Comfort
8.0
Overall
8.0
Reviews
1 / 20
6.0
GoodReza,Jun 2026
TPA - MDW
Crew
8.6
Food
7.0
Boarding
8.1
Entertainment
7.5
Comfort
8.0
Overall
8.0
Reviews
1 / 20
6.0
GoodReza,Jun 2026
TPA - MDW
Crew
8.6
Food
7.0
Boarding
8.1
Entertainment
7.5
Comfort
8.0
Overall
8.0
Reviews
1 / 20
6.0
GoodReza,Jun 2026
TPA - MDW
Crew
8.6
Food
7.0
Boarding
8.1
Entertainment
7.5
Comfort
8.0
Overall
8.0
Reviews
1 / 20
6.0
GoodReza,Jun 2026
TPA - MDW
Crew
8.6
Food
7.0
Boarding
8.1
Entertainment
7.5
Comfort
8.0
Overall
8.0
Reviews
1 / 20
6.0
GoodReza,Jun 2026
TPA - MDW
Related info for your journey
Find useful and relevant information for your journey from Boise to Chicago. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near Chicago?
Book flights to Chicago if you plan to visit one of these locationsBenton Harbor
Lansing
Merrillville
Valparaiso
Hammond
Saint Joseph
Porter
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Other flights to Chicago
Explore flights to Chicago departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on August 17, 2026.
Complete your trip
Complete your trip to Chicago by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Boise to Chicago by cabin class
Find flights from Boise to Chicago, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Boise and Chicago flights
Browse other Boise and Chicago flight options. Last updated on August 17, 2026.
Other flights from Boise
Browse through other flights departing from Boise. Flights are based on user searches made on Cheapflights and were last updated on August 17, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top 5 airlines flying from Boise to Chicago
Discover the top 5 airlines that operate flights from Boise to Chicago. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated August 17, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$228 | Average$364 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$295 | Average$475 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$296 | Average$383 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$298 | Average$390 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$314 | Average$455 | FlexibilityNo cancel fee | On-time63% |