CHI - BOI

$95 Find Cheap Flights from Chicago to Boise

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Chicago to Boise departing on 12/13. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy

KAYAK searches hundreds of travel sites at once for deals on flights to Boise

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Chicago to Boise, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Chicago to Boise, as well as popular online travel agencies
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Flight Deals

Cheap Flights from Chicago to Boise (CHI-BOI)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Chicago to Boise that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Chicago to Boise

Thu, Oct 30 - Sun, Nov 2
Frontier Logo
6:00 am - 11:48 amORD-BOI
6h 48m1 stop
Frontier Logo
12:33 pm - 12:12 amBOI-ORD
10h 39m1 stop
$158Frontier
Find Deal
Fri, Oct 24 - Sun, Oct 26
Frontier Logo
6:50 am - 11:43 amORD-BOI
5h 53m1 stop
Frontier Logo
12:28 pm - 11:53 pmBOI-ORD
10h 25m1 stop
$183Frontier
Find Deal
Wed, Nov 12 - Sat, Nov 15
Delta Logo
9:41 am - 2:04 pmMDW-BOI
5h 23m1 stop
Delta Logo
5:35 am - 1:07 pmBOI-MDW
6h 32m1 stop
$215Delta
Find Deal
Sat, Oct 18 - Wed, Oct 22
Delta Logo
7:37 am - 4:06 pmORD-BOI
9h 29m1 stop
Delta Logo
5:25 am - 1:30 pmBOI-ORD
7h 05m1 stop
$215Delta
Find Deal
Sat, Oct 18 - Wed, Oct 22
United Airlines Logo
4:05 pm - 6:47 pmORD-BOI
3h 42mnonstop
United Airlines Logo
8:20 am - 12:59 pmBOI-ORD
3h 39mnonstop
$235United Airlines
Find Deal
Fri, Oct 17 - Sat, Oct 18
United Airlines Logo
4:05 pm - 6:47 pmORD-BOI
3h 42mnonstop
United Airlines Logo
8:20 am - 12:59 pmBOI-ORD
3h 39mnonstop
$242United Airlines
Find Deal
Tue, Oct 14 - Tue, Oct 21
Southwest Logo
6:05 am - 11:50 amMDW-BOI
6h 45m1 stop
Southwest Logo
4:15 pm - 10:40 pmBOI-MDW
5h 25m1 stop
$265Southwest
Find Deal
Wed, Oct 29 - Mon, Nov 3
Southwest Logo
4:35 pm - 11:20 pmMDW-BOI
7h 45m1 stop
Southwest Logo
5:50 pm - 5:05 amBOI-MDW
10h 15m1 stop
$267Southwest
Find Deal
Fri, Oct 31 - Mon, Nov 3
American Airlines Logo
6:45 am - 12:43 pmORD-BOI
6h 58m1 stop
American Airlines Logo
1:40 pm - 6:27 pmBOI-ORD
3h 47mnonstop
$292American Airlines
Find Deal
Fri, Nov 14 - Sun, Nov 16
American Airlines Logo
9:55 am - 1:06 pmORD-BOI
4h 11mnonstop
American Airlines Logo
1:40 pm - 6:27 pmBOI-ORD
3h 47mnonstop
$293American Airlines
Find Deal

Everything you should know

Our travelers' advice
AI-generated summary based on content written by travel experts
American's Basic Economy is carry-on only with late boarding.
Southwest provides free snacks and soft drinks onboard.
Expert advice
Expert advice
Expert advice
Expert advice
Top airlines
Frontier
Cheapest • from $158 (round-trip)
Alaska Airlines
Best reviews • 8.0 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Top routes
ORD-BOI
Cheapest • 5% average savings
ORD-BOI
Most popular
Insights
Insights
Insights
Insights
When to book
3 weeks
in advance
Our data shows that travelers who book at least 3 weeks in advance save around 28% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
September
Cheapest • 20% price drop
July
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Cheapest round-trip
$158
Overall average: $377
Frontier
Thu 10/30Sun 11/2
ORD - BOI • 1 stop
Cheapest non-stop
$235
Typical prices: $355-657
United Airlines
Sat 10/18Wed 10/22
ORD - BOI • Non-stop
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KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Boise!
Expert advice

Expert advice for your flight from Chicago to Boise

 
Snippets provided in this section are AI-generated based on a summarization of KAYAK-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Airlines
Southwest

Southwest offers free carry-on and personal item, but checked bags now incur fees.


Southwest's Rapid Rewards program offers unlimited rewards seats and no blackout dates.

Read more about Southwestby Blane Bachelor
American Airlines

Basic Economy offers carry-on only travel with late boarding and no seat assignment until check-in.


Main Cabin Extra provides early boarding and complimentary drinks, ideal for longer flights.

Our travel experts
Blane Bachelor

Blane Bachelor

Expert on Southwest

Blane Bachelor

Blane Bachelor

Blane Bachelor is a journalist and editor specializing in travel and aviation who writes regularly for top global outlets. Born and raised in Florida, Blane has worked and lived in four countries, including the Netherlands, where she’s currently based with her family. Her favorite way to get to know a new destination is by running or riding a bike around town – or hearing a spooky ghost story about local history. She will always choose the window seat.

Read more
Harriet Baskas

Harriet Baskas

Expert on American Airlines

Harriet Baskas

Harriet Baskas

Harriet is an award-winning journalist who is happiest in an airport or an unusual museum. Her stories about airports, air travel, and the business of travel have appeared on NBC News, CNBC, USA TODAY, The Points Guy and other outlets. She is the creator of the StuckatTheAirport.com blog and the author of nine books. When not out on the road or exploring the latest airport amenities, she’s home in Seattle getting ready for the next adventure.

Read more
Booking Insights

KAYAK's insights & trends for Chicago to Boise flights

Get data-powered insights and trends into flights from Chicago to Boise to help you find the cheapest flights, the best time to fly and much more.

How much is a round-trip flight from Chicago to Boise?

What is the cheapest Chicago to Boise flight route?

Data is based on round-trip flight searches on KAYAK over the past month.

The cheapest return flight from Chicago to Boise costs $233 on the route between Chicago O'Hare Intl Airport (ORD) and Boise (BOI). Over the past month, this route was, on average, 5% cheaper than other Chicago-Boise routes. It is also the most popular route.

What’s the cheapest day of the week to fly from Chicago to Boise?

The average price of all round-trip flights from Chicago to Boise clicked on KAYAK for each day over the last 12 months.

If you are looking for a flight deal from Chicago to Boise, look for departures on Wednesdays and avoid leaving on a Monday, as it's usually the priciest day. When flying back from Boise, Thursday is the cheapest day to fly and Sunday is the most expensive.

What is the cheapest month to fly from Chicago to Boise?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Chicago to Boise, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Chicago to Boise is September, where tickets cost $326 (return) on average. On the other hand, the most expensive months are November and December, where the average cost of round-trip tickets is $518 and $473 respectively.

Can I save money by flying with a layover from Chicago to Boise?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

Yes, flying with a layover may cost you more time, but you can also save money on the route, with a 1 stop layover the cheapest option at $351 on average.

How far in advance should I book a flight from Chicago to Boise?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Chicago to Boise, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Chicago to Boise, you should book around 3 weeks before departure, which saves you about 28% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 20 weeks before departure.

Good to know

Low seasonFebruary
Cheapest flight$95
Best time to beat the crowds but there is an average 4% increase in price.
Most popular time to fly and prices are also 3% lower on average.
Flight from Chicago O'Hare Airport to Boise

When to book flights from Chicago to Boise

Are your dates flexible? Find out the best times to travel from Chicago to Boise based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Chicago to Boise

  • What is the cheapest flight from Chicago to Boise?

    In the last 3 days, the lowest price for a flight from Chicago to Boise was $95 for a one-way ticket and $158 for a round-trip.

  • Do I need a passport to fly between Chicago and Boise?

    A passport is not required to fly from Chicago to Boise.

  • Which airports will I be using when flying from Chicago to Boise?

    There are 2 airports in Chicago (Chicago Midway and Chicago O'Hare Intl.) and only 1 airport in Boise (Boise Air Term. Gowen Fld). The cheapest flights are generally found on the Chicago O'Hare Airport to Boise Air Term. Gowen Fld flight route.

  • Which airlines offer Wi-Fi service onboard planes from Chicago to Boise?

    Only American Airlines offers inflight Wi-Fi service on the Chicago to Boise flight route.

  • Which aircraft models fly most regularly from Chicago to Boise?

    The Embraer 175 (Enhanced Winglets) is the aircraft model that flies most regularly on the Chicago to Boise flight route.

  • Which airline alliances offer flights from Chicago to Boise?

    oneworld, and Star Alliance are the airline alliances operating flights between Chicago and Boise, with Star Alliance being the most commonly used for this route.

  • On which days can I fly direct from Chicago to Boise?

    There are nonstop flights from Chicago to Boise on a daily basis.

  • Which is the best airline for flights from Chicago to Boise, Southwest or Alaska Airlines?

    The two airlines most popular with KAYAK users for flights from Chicago to Boise are Southwest and Alaska Airlines. With an average price for the route of $399 and an overall rating of 8.0, Southwest is the most popular choice. Alaska Airlines is also a great choice for the route, with an average price of $277 and an overall rating of 8.0.

  • How does KAYAK find such low prices on flights from Chicago to Boise?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Chicago to Boise.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Chicago to Boise?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Boise from Chicago is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Chicago to Boise?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Boise with an airline and back to Chicago with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Chicago to Boise?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Boise from Chicago up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from Chicago to Boise

  • Looking for a cheap flight? 25% of our users found flights on this route for $147 or less one-way and $326 or less round-trip.

Prefer to fly direct from Chicago to Boise?

 
Direct data is based off flight results for the next 60 days. Find direct flights from all airlines flying direct from Chicago to Boise Air Term. Gowen Fld.
Find which airlines fly direct from Chicago to Boise Air Term. Gowen Fld Airport, which days they fly and book direct flights.

Direct departures

Chicago to Boise Air Term. Gowen Fld

Monday

American Airlines, United Airlines

American Airlines, United Airlines

Tuesday

American Airlines, United Airlines

American Airlines, United Airlines

Wednesday

American Airlines, United Airlines

American Airlines, United Airlines

Thursday

American Airlines, United Airlines

American Airlines, United Airlines

Friday

American Airlines, United Airlines

American Airlines, United Airlines

Saturday

American Airlines, United Airlines

American Airlines, United Airlines

Sunday

American Airlines, Southwest, United Airlines

American Airlines, Southwest, +1 more

See more direct flights

Direct returns

Boise Air Term. Gowen Fld to Chicago

Monday

American Airlines, United Airlines

American Airlines, United Airlines

Tuesday

American Airlines, United Airlines

American Airlines, United Airlines

Wednesday

American Airlines, United Airlines

American Airlines, United Airlines

Thursday

American Airlines, Southwest, United Airlines

American Airlines, Southwest, +1 more

Friday

American Airlines, United Airlines

American Airlines, United Airlines

Saturday

American Airlines, United Airlines

American Airlines, United Airlines

Sunday

American Airlines, United Airlines

American Airlines, United Airlines

See more direct flights

Reviews of the top 5 airlines serving from Chicago to Boise

 
See real verified KAYAK customer reviews for airlines flying from Chicago to Boise. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Chicago to Boise? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
Alaska AirlinesOverall score based on 10000 reviews
7.8Comfort
7.1Food
8.5Crew
8.1Boarding
7.0Entertainment
Airline reviews

All flights were on time. No crowded and had empty seats. All flight attendents were great.

10.0 ExcellentAnonymous, Sep 2025SEA - SAN
Read more Alaska Airlines reviews

All flights were on time. No crowded and had empty seats. All flight attendents were great.

Didn't buy food and did not use entertainment as these were not the purpose of my flight.

My flight was delayed 2 hours which led me to lose my connection. As a consequence, I had to spend hours changing flights and hotel reservations to arrange my arrival to Vancouver.

Would have been nice if my flight was on time and I didn't miss my connection and had to spend the night in Seattle, losing one night at the VRBO I paid for in Sitka. And, my connecting flight was still at the gate when my flight was taxiing to it's gate. But, it took off. Too bad for me. I really can't believe you even want me to review or comment on my experience.

Checking in very confusing compared to Hawaiian Airlines - much simpler! Front checking in at airport can improve. Hawaiian service always gives the extra mile, with a smile. Alaska can use and spread the Aloha Spirit. Mahalo nui loa Thank you 🤙

Very nice as always. Not that it’s anyone’s fault really but for some reason the seat (16C) was really hard…. Not typical for your planes… dunno what or why… maybe it was just me ?, The flight was great otherwise

would have been nice for flight to not be delayed by 2 hours so that we had to pay $80 to get home since BART had shut down. i thought a 10pm arrival would leave enough time to account for delays but i was wrong.

They were friendly, efficient and got our bags to us so fast at the end of the flight.

10 hour delay. Fuel spill. Crew had to drive to Indianapolis to a get a plane. The longest day of travel ever. Poor service.Little to no communication.

Flight was delayed 5 hours. Missed connecting flight. Very little apology or attempt to make anything better. Got a $150 credit for next flight. There won’t be another flight. First time on Alaska - last time. Keep your credit. Should have done something more

I wish they had movie screens in the headrests. The seats are much improved, more legroom and recently renovated. Bathroom was clean. Staff was outstanding!!

As always, the entire Southwest experience was wonderful, from online booking to flight to baggage retrieval. Very grateful.

The weather could have been better. There was a 40 minute ATC delay in SFO because of marine fog and a micro cell storm delayed landing and take-off at Nashville. The gate was changed 5 minutes from boarding from gate B3 to gate C23 at Nashville airport.

After being assaulted by a flight attendant I was then brushed off as oh well because he long braids didn’t mean to whip me in the eye. I have filed complaints and will see. But like any other issue I’ve had with kayak involved it’s been trash. Last time I’ll be using your app

AC sub par. WiFi not working correctly. Ac sucked. Seats very narrow.

Near 4 hour flight with only 1 service. Had to use call button to request water. Internet and power not working until into flight. Internet would stop working during flight.

Southwest's seats are the least comfortable I have ever sat in.

The cabin was quiet for the redeye flight. The area was clean. The staff was great. The 787 Max was in good condition. Drawbacks were that the seat widths were tight for some passengers. The seat padding was at best average and for a long flight uncomfortable.

Southwest like most American domestic airlines, is a mediocre airline. But it is among the cheapest. Oh well.

My flight was delayed 50 minutes and we were rushed to board to then sit for 15 minutes until the pilot arrived. Unacceptable since we could have waited to board. Also the delayed flight was updated AFTER we boarded to more than the 10 minutes as originally stated.

Perfect flight both ways. On time, courteous staff, plane comfortable and cool. Best domestic flights I’ve had in awhile.

Really low quality food especially for an international flight. The crew also was surprisingly unpleasant except couple of ladies. I know we were not in first class but that’s no reason to treat customers as less.

Flight delayed for two and half hours and then canceled altogether due to mechanical issues. No mechanic onsite to fix so had to send one from LAX.

Crew was good. The reservation got mixed up and they didn't have my TSA number. I am also a Silver Medallion and wasn't able to use Sky Priority.

Delta made it easy, comfortable and timely. The crew was fantastic.

This route with Delta always has delays or is cancelled. Aircrafts seem smaller and older. I fly Delta quite a bit - haven’t had issues with the international flights. But this route has always been the troublesome one

Three seats in first class were broken and while they were able to still acommodate us it was looking very touch and go and they had others they could not acommodate

Mechanic delay in addition to a 2 hour change in takeoff time was frustrating.

Delayed due to thunderstorms and no in-flight service due to rough weather — both of which are out of Delta’s control. Flight was good overall.

The flight attendants in SLC were rude. I arrived 40 minutes early to gate. Ticket said I needed check in for seat assignments and tried check in and attendants said they weren’t doing it. And proceeded to never call me to give me a ticket so when time to board I received the very last seat. Please relay to employees to do their job better..,

Once we got in the air the pilot made up some of the time of the delay. So that was really nice.

Excellent flight. Boarding was efficient and departure was on time. Smooth flight with on time arrival. Deplaning was also efficient.

It was delayed instead of departing at 9:20pm, we departed at 11pm… putting us in Columbus after 2am! It was awful. Had I known about the delay, I could have spent some time in the United Lounge… I was starving because I started my journey in Budapest… so I was exhausted and hungry. Plus I had to make new arrangements to be picked up at the airport in Columbus, instead of midnight it was 2:30 am after getting luggage and out of airport. Not feasible. I would have just stayed in Chicago for the night and gotten a morning flight.

It was great, I’m very grateful for the pilots and crew flight attendants for everything.

Evidently, my seat had the only broken TV. I couldn’t plug it in, get it to come on, or watch anything, and of course, no one could fix it while we were on the plane. The service was good and the boarding was quick

I was charged for my daughters bag when I am supposed to receive two free checked bags with my United Explorer card.

The schedule to Moline changed 5 times. The gate changed 6 times. That is a pathetic way to run an airline. No wonder that no one in our company flies on United Express to or from Moline. Changes happen most of the time. I learned my lesson on this trip…never again!

Flight was great. Efficient boarding. Short flight. Early arrival. Friendly flight crew. The entertainment system did not work well. Could not access it until the aircraft reached 10K feet or more. Lots of glitches.

A bit rush for transit. Food and entertainment are not available

Smooth boarding process. Early departure, smooth flight, early arrival. The entertainment package has very good recent movie options. The flight crew were friendly and professional.

3 hour weather delay followed by 1 hour (and counting) maintenance delay. UGH!

After we'd boarded , they canceled the flight. The crew didn't even know , we just all received text messages. Then after they deplaned us , AA was just like "too bad, go F your self, we sure ain't gonna help you"

After a two hour delay, my flight was CANCELLED! No pilot available. Such BS.

Amazing food, great staff, with one noticable detail missing ...but no seat entertainment in any of aircraft ...I am not a fan

I wish American Airlines would change the airline industry by loading the plane back to front instead of front to back. Planes would board so much more smoothly and quickly.

I have long legs, my foot was out in the aisle and when a flight attendant came walking by and I didn't notice, instead of saying "excuse me" or anything like that, she kicked my foot. Extremely rude

Excellent! The gate agents were kind enough to rebook me on an earlier flight saving me from a 6 hour layover. Even my luggage made it despite the fact that the connection was technically too narrow. The flight itself was very comfortable, roomy, and clean. Plenty of space for my carryon items with plugs to charge my phone. After a long international flight of 14 hours, this was an excellent way to end my travels!

Great experience. Flight boarded easily. Departed early. Smooth flight. Great arrival in DC--almost no taxing! Almost direct to gate from runway. Crew was terrific. Same cookies and beverages in main cabin. I did not use the entertainment system on this flight.

Most of the delay was due to weather which is not what was at issue here. One delay was due to a missing flashlight and in the end the flashlight was actually found on the plane. The entertainment system is very limited. Live TV options offer only a few channels that are not very appealing. Boarding and deplaning are always difficult. It just takes too much time to get on and off the plane. On the plus side, I missed my connecting flight, but was easily able to book a later flight from the app while enroute.

You were more on time than United. I'm so over united delays.

Everything you need to know for your flight from Chicago to Boise

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