$105 Find Cheap Flights from Chicago to Boise - Compare and Save

Among airlines operating Chicago to Boise flights:

• United Airlines: offers extra legroom; offers free seat selection
• American Airlines: offers extra legroom; offers free seat selection
• Southwest: offers free seat selection

Extra legroom and free seat selection availability depends on fare class and route.

3 airlines operate flights between Chicago and Boise. The airlines offering nonstop flights on this route include:

• United Airlines
• American Airlines
• Southwest

Flights from Chicago to Boise may depart from several airports in Chicago area, including Chicago Midway (MDW), Chicago O'Hare Intl (ORD) and Chicago Greater Rockford (RFD). Flights usually arrive at Boise Air Term. Gowen Fld (BOI).

Here are some options for this route, based on selected ticket types and cabin classes:

• United Airlines: a cabin bag and a checked bag in Economy Class
• American Airlines: a cabin bag and a checked bag in First Class
• Southwest: a cabin bag in Economy Class class

Bag allowance can vary by ticket type, cabin class, route and airline, so travelers should check the fare details before booking.

Two cabin classes are available on flights from Chicago to Boise:

• Economy Class
• First Class

On this route, layover flights are cheaper than nonstop options on average. Layover fares average $212 round-trip via Las Vegas Harry Reid Intl (LAS), compared to $412 for nonstop.

There is no standard. Checked-bag policies vary by airline on this route. Most carriers charge $40–$100 for the first checked bag in economy. Premium fares and elite-status bookings typically include a free checked bag.

One-stop flights from Chicago to Boise most commonly connect through:

• Seattle/Tacoma Intl (SEA) - 31% of one-stop connections
• Minneapolis St Paul (MSP) - 24% of one-stop connections
• Denver Intl (DEN) - 16% of one-stop connections
• Chicago O'Hare Intl (ORD) - 9% of one-stop connections

Seattle/Tacoma Intl (SEA) handles the largest share of one-stop connections on this route.

Yes. Being flexible with your travel dates can save you up to 44% on the Chicago to Boise route. Wednesday is the cheapest departure day at $358 round-trip on average, while Sunday is the most expensive at $637, a difference of $279. KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

Morning is the busiest departure period on Chicago to Boise flights, with 67% of flights leaving in that window. Evening departures account for 33%, afternoon flights for 0%, and night flights for 0%.

Some of the most popular sights in Boise are Idaho Central Arena, Julia Davis Park and Discovery Center of Idaho. These are among the most viewed places in Boise on KAYAK.

These are the earliest and latest flight times available from Chicago to Boise:

• Earliest: departs at 8:40 am and lands at 12:37 pm
• Latest: departs at 7:55 pm and lands at 11:52 pm.

The flight takes about 3h 57m.

Last-minute fares on this route - booked within 2 weeks of departure - run 30% above the route average of $403. Book 16 weeks before departure for the lowest fares.

A nonstop flight from Chicago to Boise takes 3h 57m, covering 1,448 miles.

No, a passport is not required for this domestic route, but you will need a real ID-compliant driver's license, a state ID, or another TSA-accepted form of identification.

Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about $219 to $1,314. That means the highest observed fare was about 6x higher than the lowest one.

One-way fares from Chicago to Boise are currently lower than usual. Average one-way flight prices are about $118, which is 49% below the typical average for this route.

Flying via Minneapolis St Paul (MSP) gives the shortest average 1-stop total travel time at 6h 08m, compared with 6h 21m via Denver Intl (DEN) and 6h 24m via Salt Lake City (SLC).

Boise is 1 hour behind Chicago (Mountain Time vs Central Time). Plan for the time shift when scheduling connections or first-day activities.

Boise Air Term. Gowen Fld Airport (BOI) hosts 5 major car rental companies, with daily rates starting from around $31 for economy cars. Top options include:
• Budget
• Alamo
• Hertz
• Enterprise Rent-A-Car
• Avis

Round-trip flights from Chicago to Boise range from $338 to $513, with an average of $403 over the past 12 months. Anything below $338 counts as a good deal.

American Airlines is the only airline on the Chicago to Boise route offering in-flight Wi-Fi. Pricing depends on fare class.