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Flights from Chicago to Boise

Book direct flights from Chicago to Boise: One way flights from $133, round trip flights from $437. Find flight deals for the next 3 months below.

      • Cheapest nonstop
        ORD 11:30 AM
        3h 50m
        Nonstop
        BOI 2:20 PM
        Chicago - Boise | Tue, Aug 4 | American Airlines
        BOI 2:58 PM
        3h 51m
        Nonstop
        ORD 7:49 PM
        Boise - Chicago | Sun, Aug 9 | American Airlines
        $437 $617
        28% off
        28% off
        $617 $437
      • ORD 8:40 AM
        3h 52m
        Nonstop
        BOI 11:32 AM
        Chicago - Boise | Thu, Jul 30 | United Airlines
        BOI 12:34 PM
        3h 31m
        Nonstop
        ORD 5:05 PM
        Boise - Chicago | Mon, Aug 3 | United Airlines
        $438 $617
        28% off
        28% off
        $617 $438
      • ORD 6:00 AM
        9h 22m
        1 stop
        BOI 2:22 PM
        Chicago - Boise | Wed, Aug 26 | Alaska Airlines
        BOI 6:00 AM
        6h 26m
        1 stop
        ORD 1:26 PM
        Boise - Chicago | Sat, Aug 29 | Alaska Airlines
        $326 $617
        47% off
        47% off
        $617 $326
      • ORD 6:00 AM
        9h 7m
        1 stop
        BOI 2:07 PM
        Chicago - Boise | Thu, Jul 30 | Alaska Airlines
        BOI 11:10 PM
        9h 49m
        1 stop
        MDW 9:59 AM
        Boise - Chicago | Mon, Aug 3 | Delta Air Lines
        $347
        44% off
        $617 $347
      • ORD 6:45 PM
        6h 14m
        1 stop
        BOI 11:59 PM
        Chicago - Boise | Wed, Aug 26 | Delta Air Lines
        BOI 6:00 AM
        6h 26m
        1 stop
        ORD 1:26 PM
        Boise - Chicago | Sat, Aug 29 | Alaska Airlines
        $347
        44% off
        $617 $347
      • ORD 8:40 AM
        3h 48m
        Nonstop
        BOI 11:28 AM
        Chicago - Boise | Wed, Aug 26 | United Airlines
        BOI 2:44 PM
        5h 45m
        1 stop
        ORD 9:29 PM
        Boise - Chicago | Sat, Aug 29 | United Airlines
        $364
        41% off
        $617 $364
      • ORD 8:40 AM
        3h 52m
        Nonstop
        BOI 11:32 AM
        Chicago - Boise | Thu, Jul 30 | United Airlines
        BOI 5:46 PM
        5h 58m
        1 stop
        ORD 12:44 AM
        Boise - Chicago | Mon, Aug 3 | United Airlines
        $365
        41% off
        $617 $365
      • MDW 12:46 PM
        10h 11m
        1 stop
        BOI 9:57 PM
        Chicago - Boise | Tue, Aug 4 | Delta Air Lines
        BOI 1:59 PM
        7h 37m
        1 stop
        MDW 10:36 PM
        Boise - Chicago | Sun, Aug 9 | Delta Air Lines
        $369
        40% off
        $617 $369
      • ORD 6:35 AM
        7h 18m
        1 stop
        BOI 12:53 PM
        Chicago - Boise | Thu, Jul 30 | Delta Air Lines
        BOI 11:10 PM
        9h 49m
        1 stop
        MDW 9:59 AM
        Boise - Chicago | Mon, Aug 3 | Delta Air Lines
        $373
        40% off
        $617 $373
      • ORD 11:30 AM
        3h 50m
        Nonstop
        BOI 2:20 PM
        Chicago - Boise | Wed, Aug 26 | American Airlines
        BOI 4:17 PM
        6h 42m
        1 stop
        ORD 11:59 PM
        Boise - Chicago | Sat, Aug 29 | Alaska Airlines
        $381
        38% off
        $617 $381
      • ORD 6:00 AM
        7h 26m
        1 stop
        BOI 12:26 PM
        Chicago - Boise | Tue, Aug 4 | Alaska Airlines
        BOI 1:06 PM
        7h 27m
        1 stop
        ORD 9:33 PM
        Boise - Chicago | Sun, Aug 9 | Delta Air Lines
        $393
        36% off
        $617 $393
      • ORD 9:57 PM
        15h 32m
        1 stop
        BOI 12:29 PM
        Chicago - Boise | Tue, Jul 21 | Frontier Airlines
        BOI 1:05 PM
        7h 24m
        1 stop
        ORD 9:29 PM
        Boise - Chicago | Thu, Jul 23 | Delta Air Lines
        $406
        34% off
        $617 $406
      • CHI 1:00 PM
        17h 25m
        1 stop
        BOI 2:00 PM
        Chicago - Boise | Tue, Jul 14 | Normal Airline
        BOI 3:00 PM
        6h
        Nonstop
        CHI 4:00 PM
        Boise - Chicago | Thu, Jul 16 | Normal Airline
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      • Cheapest nonstop
        ORD 11:39 AM
        3h 50m
        Nonstop
        BOI 2:29 PM
        Chicago - Boise | Wed, Aug 12 | American Airlines
        $133 $193
        31% off
        31% off
        $193 $133
      • ORD 6:00 AM
        9h 7m
        1 stop
        BOI 2:07 PM
        Chicago - Boise | Tue, Aug 11 | Alaska Airlines
        $119 $193
        38% off
        38% off
        $193 $119
      • ORD 6:00 AM
        9h 7m
        1 stop
        BOI 2:07 PM
        Chicago - Boise | Thu, Aug 13 | Alaska Airlines
        $126 $193
        35% off
        35% off
        $193 $126
      • ORD 7:00 AM
        9h 18m
        1 stop
        BOI 3:18 PM
        Chicago - Boise | Thu, Aug 13 | Delta Air Lines
        $127
        34% off
        $193 $127
      • ORD 6:00 AM
        9h 7m
        1 stop
        BOI 2:07 PM
        Chicago - Boise | Wed, Aug 12 | Alaska Airlines
        $127
        34% off
        $193 $127
      • MDW 12:46 PM
        10h 11m
        1 stop
        BOI 9:57 PM
        Chicago - Boise | Thu, Aug 20 | Delta Air Lines
        $132
        32% off
        $193 $132
      • MDW 7:25 PM
        5h 34m
        1 stop
        BOI 11:59 PM
        Chicago - Boise | Tue, Aug 11 | Delta Air Lines
        $133
        31% off
        $193 $133
      • ORD 6:00 AM
        9h 7m
        1 stop
        BOI 2:07 PM
        Chicago - Boise | Wed, Jul 22 | Alaska Airlines
        $134
        31% off
        $193 $134
      • ORD 9:57 PM
        15h 32m
        1 stop
        BOI 12:29 PM
        Chicago - Boise | Wed, Jul 22 | Frontier Airlines
        $136
        30% off
        $193 $136
      • ORD 12:54 PM
        6h 54m
        1 stop
        BOI 6:48 PM
        Chicago - Boise | Wed, Aug 12 | Delta Air Lines
        $137
        28% off
        $193 $137
      • CHI 1:00 PM
        17h 25m
        1 stop
        BOI 2:00 PM
        Chicago - Boise | Tue, Jul 14 | Normal Airline
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Displayed flight fares from Chicago to Boise are based on average prices across airlines for the next 3 months, according to the latest Trip.com database.

Find cheap airlines flights from Chicago to Boise

You can choose from 1 airlines that fly from Chicago to Boise, including United Airlines, American Airlines has lowest fares on this route.
United Airlines logo United Airlines
Airlines are determined based on actual purchased flight tickets from Chicago to Boise according to previous 12 months data from Trip.com.

Flight Info | Chicago to Boise

The distance between Chicago and Boise is approximately 2,331.07 km. It takes around 3 hours 59 minutes on average to fly from Chicago to Boise. Based on Trip.com's data travel demand peaks in January. The off-season for travel is October.

Cheapest one-way flight price$119
Cheapest round-trip ticket price$326
Off-season for travelOctober
Peak season for travelJanuary
Flight distance2,331.07 km
Average flight time3 hours 59 minutes
Popular airlineUnited Airlines
Flight statistics for the Chicago–Boise route are based on aggregated booking data from Trip.com over the past 12 months.

Frequently Asked Questions

  • What are the cheapest flights from Chicago to Boise (CHI-BOI)?

    Based on Trip.com data, Alaska Airlines offers one-way fares as low as $119 on Cheapest nonstop routes (e.g. ORD to BOI on Tue, Aug 11), while Alaska Airlines offers Cheapest nonstop round-trips from $326 departing on Wed, Aug 26 and returning on Sat, Aug 29.
  • At the moment, you can catch a nonstop flight from Chicago to Boise with the following airlines, including: United Airlines Selected airlines are based on historical data collected from flight bookings users made on Trip.com within the last 90 days.
  • It takes around 3 hours 59 minutes to fly from Chicago (CHI) to Boise (BOI).
  • By analyzing data from all airlines on the Trip.com flight calendar, it looks like the best time to book a flight from Chicago to Boise is around 40 days (6 weeks) in advance, and the best time to fly is usually on Tuesday, Wednesday, and Saturday. Tuesday typically offers the cheapest flights for departure, while Saturday offers the best return deals.
  • Based on Trip.com data in the past 4 weeks, there is 19 flight per week flying from Chicago to Boise. You can check the weekly schedule for popular airlines on this route below: United Airlines: S/M/T/W/T/F/S -- UA2137 (08:53)
  • To find best deals on flights from Chicago to Boise, you can use various tools on Trip.com:
    · Be flexible with your travel dates to get the cheapest flight deal. Now the cheapest flight deal is on Tue, Aug 11, with one-way flights priced at just $119.
    · Compare airlines strategically. Budget carriers often provide the lowest base fares, while we found the most affordable airline currently operating on this route is American Airlines.
    · Set up price alerts to easily monitor ticket prices without having to check every day.
    · Check Trip.com flight deals and promo codes frequently.
    · Avoid peak season unless you book very early. It seems the peak season for Boise travel is around January.
    · Get exclusive promo codes for Trip.com app users.
  • The cheapest months to fly from Chicago to Boise is October, when demand for travel is lower.
  • After crunching the numbers on our July flight calendar, it's currently cheapest to fly from Chicago to Boise on July 22, 2026 with Alaska Airlines, with prices starting at $134.
  • You can land at any one of the following hubs in Boise, with O'Hare International Airport to Boise Airport (ORD-BOI) is by far the most common option on this route: Boise Airport (BOI).
  • The time difference between Boise and Chicago is 1h.
  • Tickets can only be changed or canceled if permitted by airline policy. To submit a change or cancellation request, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and segment, and submit a request. Please note that additional charges may apply according to the airline ticket policy. However, if the flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For more details about change and cancellation policies, please check the customer support pages.

Explore More Popular Flights

Note: Prices shown on this page are estimated lowest price and include all taxes and fees found in the last 24 hours.

Book with no extra fees

Prices displayed in this page are all-inclusive prices (incl. taxes, fuel surcharge, civil aviation development fund, etc) with all fees confirmed before payment. Fees for luggage, meals, WLAN, or other additional services are also included as shown in the flight cards.

Real-time pricing updates

Prices, availability, and travel information on this page were updated within last 24 hours—even in real-time. The more popular the route, the more precise the data.

Change & Cancellation Policy

Trip.com displays flight cancellation and change policies for each flight ticket during the booking process, including fees and applicable conditions. Please check the following scenarios:
Voluntary cancellation/change:
To submit a change or cancellation request, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and segment, and submit a request. Please note that additional charges may apply according to the airline ticket policy.
Cancellation/change due to a flight schedule change:
If the flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For more details about change and cancellation policies, please check the customer support pages.