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Find cheap flights from Chicago to Idaho from $77

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 Idaho departing on 9/10. 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
0 bags
Wed 7/10
Wed 7/17

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Best Idaho Flight Deals

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours

Boise
Boise1 stop$164
Idaho Falls
Idaho Falls1 stop$354
Hailey
Hailey1 stop$513
Lewiston
Lewiston1 stop$580
Twin Falls
Twin Falls1 stop$1,428

Good to know

Low season

April

High season

July

Cheapest flight

$77
Best time to beat the crowds with an average 13% drop in price.
Most popular time to fly with an average 23% increase in price.
Flight from Chicago O'Hare Airport to Boise

FAQs - booking Idaho flights

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

    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 Idaho.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Idaho 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 Idaho?

    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 Idaho 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 Idaho?

    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 Idaho from Chicago up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top tips for finding cheap flights to Idaho

  • Morning departure is around 22% more expensive than an evening flight, on average*.
*Average of the lowest prices shown in KAYAK’s search results for departures within the next 30 days

Top 5 airlines serving from Chicago to Idaho

Need help choosing which airline to fly with from Chicago to Idaho? 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.
7.8
Cathay PacificOverall score based on 1030 reviews
7.5Food
8.0Boarding
8.2Crew
7.8Comfort
7.9Entertainment
Airline reviews

Great, the flight attendants were very friendly and the food was also good.

10.0 ExcellentAnonymous, May 2024LAX - HKG
Read more about Cathay Pacific reviews

Great, the flight attendants were very friendly and the food was also good.

The overall flight went well and the aircrew was pleasant.

Very comfortable Prem economy seats for a long haul flight. Had a problem with the tv that the crew fixed so was great!

Cathay Pacific seems to be an airline in trouble and on its way out. Lots of broken or poorly functioning things like entertainment screens, seats, and enough well trained staff to handle a full flight. Sad...

The flight crew was exceptionally good. Personal needs were well met. The food choices were very nice.

Excellent. Planes are a little older and could get some refurbishment, but besides that everything was excellent.

While I was in great pain, the seat was sufficiently comfortable to allow me to rest and not be in so much pain.

we were upgraded which was a blessing and tender mercy for us. I fell the day before and was in extreme pain from knee to shoulder. Sitting in a more comfortable seat during the flight was an unexpected blessing and experience.

Seats were very comfortable. Crew were excellent. Food very good.

Flight crew was especially thoughtful and attentive, made sure our seats were comfortable so we could rest on the long flight

Flighty delayed on boarding - then group 1 had to check their carry on bags but groups 3 and beyond could carry bags on - very inconvenient for weekend business trip with no checked baggage. Then delayed on the runway - before take off. No communication from pilot on why or how long. Wifi/Entertainment didn't work for 4+ flight. Upon arrival, attendants announced wrong carousel for baggage claim - everyone was waiting at the wrong place for their checked bags. This was a mess united!

There was no screens on board AND the WiFi didn’t work. My seat was broken and couldn’t recline so I couldn’t even sleep. The flight attendants didn’t offer anything to make it more comfortable. It was such an old cramped plane, when the person in front of me reclined I couldn’t even open my tray table. All the United ads talk about guaranteeing everyone gets a screen!

I’ve had a couple flights this week on United that were delayed by an hour or more

Great! The plane was decently sized and comfortable. The staff was nice and there was great in flight entertainment

Last minute gate change nearly caused us to miss our flight. Change was not announced or displayed in the main board at the old gate. Terrible communication. When we landed we had to wait 20 minutes because there was another plane at the assigned gate. Not the crew’s fault, but adding 20 minutes to a 45 minute flight sucked.

delay several times and wait extra long to board. no entertainment service because there are problem for some rows. always encounter some delays for the last flight of the day.

The flight experience was very good! Especially the United Club!

I was not able to buy food in the flight. They refer to include your Credit card in the APP, and if you are not from USA (i have a credit card form Canada) it is not possible

The flight from Ottawa to Chicago took a lot longer due to DC in Ottawa. We got to Chicago and went to our gate to catch our flight. We only had nine minutes I found that very stressful.

Good boarding. Crew started quick with drinks and food. They came around several times for trash which I really liked. Other than turbulence due to storms in the area, flight was great.

My husband and I pre-ordered our food, but they did not have my husband’s order, and my cheese plate was very average. I asked for a blanket and was told they don’t carry blankets on domestic routs. The flight was on time and smooth!

Good flights. Departure and arrivals were on time. DFW was a little problematic in that the Skytrain without prior notice bypassed the Echo terminal so that delayed my arrival at my connecting flight.

Because I can’t stand very long in one place, I was allowed to reword.

5 hour flight - full flight - not enough room to use my computer - slightly delayed - Admirals club was excellent quality food, drink made up for flight seating. No food offerred on flight, you ahd to prebook.

Excellent- plan was barely populated. I cannot remember a flight where I was able/encouraged to stretch out!

Great flight. Boarding was efficient and quick. On time departure and smooth flight. Flight arrived early at destination. Good experience.

Had technical issue which delayed the flight period. Flight crew knew there was 5 passengers that the connecting flight was within 15 minutes once at the gate. Rather than identify the 5 passengers to assure they got first. The flight attended mentioned it but didn't assist to assure passengers with connecting flights off first. This caused a hardship and our party of 3 missed the connecting flight.

I don't like that I have to pay if I want extra leg room. The seats are so expensive; I sit in normal seats and my legs and knees cramp the entire flight. I never feel comfortable on AA flights.

Flight was delayed at departure due to weather and the need for de-icing. The flight was smooth but there was a delay at arrival due to weather. We were in a hold for 20 minutes or more. The flight arrived more than 30 minutes late. Airlines have no control over the weather and I'm glad that they follow all safety procedures. Had to wait a long time for my checked luggage. Whole process was slow and the bags arrived wet due to the rain. The onboard wifi and entertainment access was spotty and the signal was dropped several times. Otherwise the crew was great and friendly. They tried to get everyone's bags stowed and seated so we could take off.

Regarding the boarding: it needs more efforts to make it more convenient

Flight was canceled less than 6 hours before takeoff, rebooked on a flight that was twice as long and left earlier so we couldn’t make it, when using text support option took over 2 hours to speak with someone.

Not enough help at airport during boarding process. Flight was delayed. Overall WORST flying experience I’ve ever had. Will NEVER FLT SPIRIT AGAIN

Terrible legroom, seats do not recline, tray table the size of an iPhone, delayed flight, have to pay 5$ to get a cup of water onboard.

Could have TV/Movie and some water ou soda free

Flight was good and clean but delayed over an hour on the return flight.

The non stop flight and able to go into Atlantic City airport. They could lower the prices. It starts out low but then if you want to bring luggage and pick your seat the price goes up quite a bit.

Flight got diwngraded last minute and left us stranded. I was told I’ll be given credit for my luggage and seat upgrades but haven’t got anything yet

We can’t predict circumstances like this ahead of time, but I give your staff a hats off for immediately giving us updated informations.

It was nice! There was a very unhappy child in front of us and the flight attendant did a great job calming the child. I was impressed.

The plane was not on time for boarding or departure or arrivals.

I strongly dislike Frontier. I find them barebones, the seats not particularly comfortable, the nickel and diming is maddening, the app is TERRIBLE - super confusing to navigate, and the last 4 frontier flights I have flown have been on AVERAGE 2 hours late, one ruining a fancy night out in Vegas with reservations made well in advance, which was nodded to with a measly 5000 miles, which translates to almost nothing. At least credit a free checked bag or something.

8 hr delay. had to buy another ticket with another airline

Four and a half hour delay in total. What frustrates me most is the poor communication and disorganization.

I appreciated the upgrade to free cary-on bag and seat selection at no charge

FRONTIER SUCKS! The agent downstairs tricked me into booking, just to get to the gate. At the gate, they told me they couldn't help. I then called Customer Service. They and the gate attendants kept blaming each other. Neither side was willing to help the customer.

The agent at check-in was strident, unwelcoming, and condescending to customers ahead of me.

Flight was delay 9hrs and nothing was provided at airport, had to go and get a room to sleep in, paid for Uber back and fort with no offers until we landed back home a 1hr later for a $75 voucher for a future flight.

Didn't like anything..entire crew was very rude to everyone on the flight. Plane old and the trays fall down on you the while time you're flying. Charged more for a carry on bag than for the plane ticket itself. Did make it from point a to point b, but worth the extra money to fly with another airline

9 hours of delay!! Was not able to check my luggage that I paid for!!!

It was delayed 9 hours for operational reasons, despite the plane arriving to the airport on time.

Book cheap flights from Chicago to Idaho

Recent round-trip flight deals

9/17Tue
1 stopSpirit Airlines
8h 35mORD-BOI
9/24Tue
1 stopSpirit Airlines
7h 20mBOI-ORD
$164
7/2Tue
1 stopSpirit Airlines
11h 47mORD-BOI
7/9Tue
1 stopSpirit Airlines
8h 23mBOI-ORD
$170
8/16Fri
1 stopDelta
5h 43mORD-BOI
8/19Mon
1 stopDelta
6h 05mBOI-ORD
$228
8/26Mon
1 stopDelta
6h 14mMDW-GEG
9/10Tue
1 stopDelta
5h 27mGEG-MDW
$228
8/20Tue
1 stopUnited Airlines
6h 32mORD-GEG
8/25Sun
nonstopUnited Airlines
3h 43mGEG-ORD
$259
8/10Sat
nonstopUnited Airlines
4h 10mORD-GEG
8/17Sat
nonstopUnited Airlines
3h 43mGEG-ORD
$267
7/27Sat
1 stopAmerican Airlines
8h 41mORD-BOI
7/30Tue
1 stopAmerican Airlines
6h 54mBOI-ORD
$283
8/26Mon
1 stopAlaska Airlines
6h 51mORD-GEG
8/26Mon
2 stopsAlaska Airlines
18h 54mGEG-ORD
$286
9/19Thu
2 stopsAlaska Airlines
19h 54mORD-BOI
9/23Mon
1 stopAlaska Airlines
8h 35mBOI-ORD
$292
7/16Tue
1 stopAmerican Airlines
7h 36mORD-BOI
7/19Fri
1 stopAmerican Airlines
8h 14mBOI-ORD
$297

Search by stops

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Recent one-way flight deals

9/10Tue
1 stopSpirit Airlines
13h 12mORD-BOI
$77
9/16Mon
1 stopSpirit Airlines
13h 12mORD-BOI
$81
9/10Tue
1 stopDelta
5h 50mMDW-BOI
$113
8/7Wed
1 stopDelta
7h 07mORD-BOI
$113
8/26Mon
1 stopAlaska Airlines
6h 30mORD-GEG
$114
9/11Wed
1 stopAlaska Airlines
7h 50mORD-IDA
$147
7/20Sat
1 stopAmerican Airlines
7h 36mORD-BOI
$159
6/18Tue
1 stopAmerican Airlines
7h 26mORD-GEG
$161
7/16Tue
nonstopUnited Airlines
3h 14mORD-JAC
$235
7/25Thu
1 stopUnited Airlines
5h 19mORD-IDA
$244

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Last minute flights from Chicago to Idaho

Last minute flight, train and bus deals

6/11Tue
multi-stopDelta
5h 41mMDW-BOI
6/16Sun
multi-stopDelta
7h 14mBOI-MDW
$305
6/11Tue
multi-stopDelta
5h 50mORD-BOI
6/16Sun
multi-stopDelta
5h 31mBOI-ORD
$305
6/11Tue
multi-stopAmerican Airlines
8h 01mORD-BOI
6/13Thu
multi-stopAmerican Airlines
9h 15mBOI-ORD
$318
6/12Wed
multi-stopDelta
5h 41mMDW-BOI
6/14Fri
multi-stopDelta
7h 21mBOI-MDW
$318
6/11Tue
multi-stopAmerican Airlines
10h 01mORD-GEG
6/21Fri
multi-stopAmerican Airlines
8h 22mGEG-ORD
$380
6/11Tue
nonstopUnited Airlines
3h 52mORD-BOI
6/16Sun
multi-stopUnited Airlines
5h 35mBOI-ORD
$499
6/11Tue
nonstopUnited Airlines
3h 52mORD-BOI
6/16Sun
nonstopUnited Airlines
3h 31mBOI-ORD
$539
6/12Wed
multi-stopSpirit Airlines
24h 35mORD-BOI
6/14Fri
multi-stopSpirit Airlines
15h 27mBOI-ORD
$710
6/11Tue
multi-stop
22h 12mORD-BOI
6/16Sun
multi-stop
18h 29mBOI-ORD
$842
6/11Tue
multi-stopSpirit Airlines
17h 15mORD-BOI
6/13Thu
multi-stopSpirit Airlines
35h 11mBOI-ORD
$1,187

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Flights to Idaho

Return flight deals:

Idaho - Chicago

Cabin classes:

$901
$758
$847
$354