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Find cheap flights from Boise to Illinois from $69

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Boise to Illinois departing on 6/25. 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
Sat 7/6
Sat 7/13

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Best Illinois Flight Deals

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

Chicago
Chicago1 stop$257
Moline
Moline1 stop$596
Peoria
Peoria1 stop$744
St. Louis
St. Louis1 stop$223

Good to know

Low season

February

High season

July

Cheapest flight

$69
Best time to beat the crowds with an average 3% drop in price.
Most popular time to fly and prices are also 1% lower on average.
Flight from Boise to St. Louis

FAQs - booking Illinois flights

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

    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 Boise to Illinois.

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

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

    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 Illinois with an airline and back to Boise with another airline.

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

    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 Illinois from Boise 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 Illinois

  • Looking for a cheap flight? 25% of our users found tickets from Boise to the following destinations at these prices or less: Chicago $333 one-way - $615 round-trip
  • Morning departure is around 13% 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 Boise to Illinois

Need help choosing which airline to fly with from Boise to Illinois? 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.
8.2
Singapore AirlinesOverall score based on 1418 reviews
8.4Boarding
8.7Crew
8.1Entertainment
8.1Comfort
7.8Food
Airline reviews

I had a great experience with Singapore airlines as always. The partner airline, Scoot was fine except my bag was misplaced during the shuffle. Ultimately, my baggage arrived intact. Attempting to inquire about my baggage was impossible.

10.0 ExcellentHugh, Jun 2024LAX - NRT
Read more about Singapore Airlines reviews

I had a great experience with Singapore airlines as always. The partner airline, Scoot was fine except my bag was misplaced during the shuffle. Ultimately, my baggage arrived intact. Attempting to inquire about my baggage was impossible.

plus: service and personal assistance minus: online check-in did not work

The Premium economy class is not the same as some other airlines because there are no economy seats on these planes. Basically you’re getting an economy seat that’s a little wider. The seats are not that much more comfortable. The service and food experience is similar to economy class on other Asian airlines. There aren’t enough toilets for the entire plane therefore we are forced to share the business class toilets that are closed off with curtains.

My overall experience with Singapore Airlines is great. Will definitely fly Singapore airline again.

I commend the flight attendants on our SFO-SIN flight who went above and beyond to provide us with extra snacks and food. This type of service makes the flight experience personal and awesome.

It was a great flight Food was great Crew was spectacular

In general good, but the machine seems to be long in operation and some functions were restricted as e. g. Adjusting of seats.

When boarding, after business class should be premium economy, but economy class already lined-up at the gate blocking premium economy to board. Singapore airline crew should done a better job to organize this chaos :( Thank you.

It seems paying premium economy does not make difference with economy. No priority boarding, not worthy paying extra$$$ for premium economy.

People were so nice! Economy seats were small and cramped feeling for me. I’m slender and 6 feet tall

Really bad baggage handling. Had my Rimowa bag badly damaged at the latches.

It was pretty good I was worried with the short Layover that I might not catch my connection but the gate was there

It was good until there was a 3 hour delay because there was not any pilots to fly the plane.

There was plenty of overhead room but half of the passengers were told they had to check their carryon bags. My partner and I checked in as early as possible and our seats were split across the aisle.

Friendly flight attendants. Comfort plus seats were very comfortable and had lots of leg room. 10A and 10 B.

Flew first class so everything was great. But maybe because the flights were red eye, no meals were served, just chips. I flew Alaska Air 1st class at 9PM (2 hour flight) and they served beef short rib sliders!

Had to change aircraft due to a faulty door. Surprisingly it only caused about an hour and a half of delay. Delta handled this situation as well as can be expected.

Awful. Flight was continuously getting delayed and gates kept changing without any reason. Flight was delayed for more then 3 hours

Paid premium for Delta only to be on safe but tired old 767 with ancient cabin in mediocre condition. Poor wifi and horrible inflight entertainment. Hardly a premium experience. Should have flown SW and had fun flight crew and no pretense

Our flight to Zurich was delayed by almost 3 hours, so we missed our next flight. There was no indication it would be delayed this much. We were told the gate had changed and then it apparently took over 2 hours to load the "catering" on the plane. We were not compensated in any way for the trouble.

After the morning frenzy of 35 min wait through CLT security at 4;30 AM, it was nice to have a smooth pleasant boarding experience. This 6:30 AM flight was not full. We were able to get seated swiftly and took off promptly. Nice touch they distributed the old fashioned headsets with 8 mm jacks. Snacks were decent and arrival was uneventful.

I had a great flight. Everything went smoothly and the flight arrived early.

The flight and boarding were easy peasy. I was traveling with my 4-year-old, so a smooth boarding experience was especially appreciated. My only piece of feedback is really about where our gate was in O'Hare. They've shoved four gates into a tiny corner of the B terminal and there isn't early enough room or seating for everyone. Not United's problem, but did dent the overall experience.

I was told we'd have a hot breakfast option in first class, so I chose not get a hot breakfast. It was a very strange meal, but the fresh fruit was very good quality. Service was excellent from ORD to ELP. No service from MBS to ORD, not even water. However, when flying American from FNT to ORD, which is a shorter flight, they at least pass out snacks and offer water.

The delays (5 hrs) were a comedy of errors, and the multiple safety issues encountered were very concerning.

The flight was delayed instead of leaving at 11 it left at 12.20

United WiFi is consistently unusable (it can take 10 mins to load a single web page). If you need Wifi to do work, be prepared to lose half a day of productivity.

Good movies, iffy pay WiFi, food ok- on time though and that was great!

Awful…flight was delayed more than 12hrs, missed all connections to Fort Wayne, IN, had to get flight to another city 2 hours from my destination, flight was again delayed by 40 mins because they did not have enough fuel, again missed a connection, finally arrived in Indiana at 11pm…but before my 2 hour drive home, ay, no Five That Our Luggage Never Made On The plane and Still In Chicago

Boarding was friendly and quick. While the plane model was older with no live tv, the entertainment was full of movies and tv shows. All food was available. Pilots were very communicative with status of the flight. Flight landed on time.

Internet service was erratic. Crew service was poor and slow. My luggage on this non-stop flight was lost and not recovered

The CX617 from HK to BKK was delayed more than 1.5 hours.

This flight is frequently delayed. The connections seemingly are more frequently delayed. I’ve missed connections as a result twice on the same route to charlotte then Charleston. Final destination arrival has been the next day, twice in a row. No pilots, no crew. Too many excuses. Unfortunately, my days with American are over.

Entertainment was okay not because anything was wrong but it is a short flight so having no wifi is annoying but understandable. Crew was outstanding as usual

Those seats were way too narrow. I had the middle seat, one person was a very skinny person and we still couldn’t avoid touching each other anytime one of us moved. The other person was larger and we were basically sitting in each others lap the entire flight. There was zero entertainment. The flight was long enough to justify tvs, but no. Gotta sit there in your infant seat and twiddle your thumbs.

Flight was fine. It took an unusually long time to have baggage delivered to the carousel in ORD.

Average - flew with Jet Blue internal and it was far more comfortable and better food and entertainment. Notable difference

The flight got canceled due to mechanical issues, and he to be rebooked and missed my appointments for that day

The flight was scheduled to depart DCA at 12:30 pm but was delayed twice on the ground so that we were finally scheduled to depart at around 4:00 pm. Once we boarded, it was announced that takeoff would be delayed again to fix a hydraulic problem which delayed our eventual takeoff until around 5:00 pm. Once we departed, it was a smooth flight back to ORD. We did not get any explanation about what caused the original significant delay. In my experience, this happens frequently with AA.

The only problem experienced was a ground stop in Chicago due to weather. But the crew handled everything professionally. They prioritized rebooking those passengers who had connecting flights and then deplaning the other passengers. When the hold was lifted, they efficiently re-boarded all the passengers so that we could depart before our departure limit expired.

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

Crew was nice, explained emergency protocol very well. Flight took off and arrived on time. Pilot explained the small delay that occurred with docking and providing updates. I would definitely fly spirit again.

The seat are terrible. Don’t even think of sleeping on a Spirit flight. The kids that run the plane aka flight attendants are pretty rude and straight forward. They get the job done but without class.

I had a death in my family and booked my flight on Spirit. My flight was cancelled the morning of my flight, no explanation, no help to rebook, nobody to talk to. The next available flight was 2days later !!!! Terrible airline, will NEVER fly with them again!

They took a horrible route with a lot of turbulence and I eneded up getting sick. Even if the flight takes longer. Don't put people life at risk just to get to the airport on time.

Every thing was fine ,low price,easy on time ,clean, good staff, really no issues

No basic services such as water, snacks. Internet very expensive. Seats were very small, hard and uncomfortable. Alaskan Airlines, my outbound flight to Boise from Orlando, offered beverage service, a snack, and reasonable priced internet, for the same price as my return trip on Spirit. It had more comfortable seating also.

Had to board plan 2x due to lack of security check after 1st boarding

Miserable. The crew was rude, the flight was delayed 5 hours for mechanical reasons and then “weather” even though other planes were leaving.

They kept Changing the flight times. It was delayed several times and at one point it was supposed to depart at 3.40am! At which point we ended up staying overnight and booked long a separate United flight for early morning departure. The spirit flight then got moved up and left at 1.30 in the morning when it was supposed to leave at 9.40pm the night before.

Book cheap flights from Boise to Illinois

Recent round-trip flight deals

6/25Tue
1 stop
14h 52mBOI-STL
7/12Fri
1 stop
24h 49mSTL-BOI
$223
9/27Fri
1 stopSpirit Airlines
15h 42mBOI-STL
9/30Mon
1 stopSpirit Airlines
26h 28mSTL-BOI
$230
8/6Tue
1 stopDelta
7h 03mBOI-MDW
8/12Mon
1 stopDelta
5h 50mMDW-BOI
$257
7/30Tue
2 stopsDelta
10h 23mBOI-MDW
8/2Fri
1 stopDelta
5h 51mMDW-BOI
$263
6/21Fri
1 stopAmerican Airlines
7h 08mBOI-ORD
6/30Sun
1 stopAmerican Airlines
7h 00mORD-BOI
$288
7/2Tue
1 stopUnited Airlines
5h 32mBOI-ORD
7/9Tue
nonstopUnited Airlines
4h 01mORD-BOI
$320
6/14Fri
1 stopAmerican Airlines
7h 08mBOI-ORD
6/16Sun
1 stopAmerican Airlines
7h 00mORD-BOI
$329
7/3Wed
nonstopUnited Airlines
3h 30mBOI-ORD
7/10Wed
1 stopUnited Airlines
5h 31mORD-BOI
$343
8/27Tue
2 stopsAlaska Airlines
20h 34mBOI-ORD
8/30Fri
1 stopAlaska Airlines
8h 42mORD-BOI
$390
6/10Mon
1 stopAlaska Airlines
8h 00mBOI-ORD
6/12Wed
1 stopAlaska Airlines
7h 43mORD-BOI
$405

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Recent one-way flight deals

6/25Tue
1 stopSpirit Airlines
14h 52mBOI-STL
$69
6/26Wed
1 stopSpirit Airlines
8h 11mBOI-ORD
$103
8/12Mon
1 stopDelta
7h 03mBOI-MDW
$114
8/12Mon
1 stopDelta
7h 33mBOI-ORD
$114
6/17Mon
1 stopAmerican Airlines
7h 08mBOI-ORD
$146
7/11Thu
2 stops
21h 23mBOI-STL
$170
7/10Wed
1 stopAmerican Airlines
7h 38mBOI-STL
$183
7/11Thu
3 stops
27h 21mBOI-STL
$206
7/31Wed
nonstopUnited Airlines
3h 30mBOI-ORD
$245
6/30Sun
nonstopUnited Airlines
3h 40mBOI-ORD
$285

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Last minute flights from Boise to Illinois

Last minute flight, train and bus deals

6/11Tue
multi-stopSpirit Airlines
31h 47mBOI-ORD
6/13Thu
multi-stopSpirit Airlines
10h 01mORD-BOI
$273
6/11Tue
multi-stopSpirit Airlines
8h 23mBOI-ORD
6/13Thu
multi-stopSpirit Airlines
8h 51mORD-BOI
$310
6/11Tue
multi-stopAmerican Airlines
9h 15mBOI-ORD
6/18Tue
multi-stopAmerican Airlines
8h 01mORD-BOI
$329
6/11Tue
multi-stopDelta
11h 05mBOI-ORD
6/18Tue
multi-stopDelta
7h 09mORD-BOI
$363
6/8Sat
multi-stopAmerican Airlines
9h 17mBOI-ORD
6/14Fri
multi-stopAmerican Airlines
6h 42mORD-BOI
$366
6/11Tue
multi-stopDelta
11h 05mBOI-ORD
6/18Tue
multi-stopDelta
8h 55mORD-BOI
$368
6/10Mon
multi-stopAlaska Airlines
8h 00mBOI-ORD
6/12Wed
multi-stopAlaska Airlines
7h 43mORD-BOI
$405
6/11Tue
nonstopUnited Airlines
3h 31mBOI-ORD
6/18Tue
nonstopUnited Airlines
3h 52mORD-BOI
$489
6/11Tue
multi-stopUnited Airlines
5h 38mBOI-ORD
6/18Tue
nonstopUnited Airlines
3h 52mORD-BOI
$499
6/8Sat
multi-stopAlaska Airlines
13h 33mBOI-ORD
6/14Fri
multi-stopAlaska Airlines
7h 09mORD-BOI
$726

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Boise - Illinois Flights

Departure:

Boise (BOI)United States

Return flight deals:

Illinois - Boise

Cabin classes:

$924
$901
$1,230
$459