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Cheap flights from Idaho to Illinois from $132

1 adult
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Idaho to Illinois

Cheap round-trip flights

Enter your travel dates to find the best prices.
Frontier Logo
7:55 pm - 5:10 amBOI  Boise Air Term. Gowen Fld-ORD Chicago O'Hare Intl
8h 15m1 stop Las Vegas Harry Reid Intl
Frontier Logo
5:19 am - 7:00 pmORD  Chicago O'Hare Intl-BOI Boise Air Term. Gowen Fld
14h 41m1 stop Las Vegas Harry Reid Intl
$295Frontier
Sun, Nov 22 - Wed, Nov 25
Frontier Logo
6:56 pm - 5:06 amBOI  Boise Air Term. Gowen Fld-ORD Chicago O'Hare Intl
9h 10m1 stop Las Vegas Harry Reid Intl
Frontier Logo
6:11 am - 6:01 pmORD  Chicago O'Hare Intl-BOI Boise Air Term. Gowen Fld
12h 50m1 stop Las Vegas Harry Reid Intl
$304Frontier
Tue, Dec 22 - Tue, Dec 29
Alaska Airlines Logo
8:22 pm - 5:40 amBOI  Boise Air Term. Gowen Fld-ORD Chicago O'Hare Intl
8h 18m1 stop Seattle/Tacoma Intl
Alaska Airlines Logo
9:00 am - 3:23 pmORD  Chicago O'Hare Intl-BOI Boise Air Term. Gowen Fld
7h 23m1 stop Seattle/Tacoma Intl
$317Alaska Airlines
Wed, Oct 28 - Thu, Oct 29
Alaska Airlines Logo
6:43 pm - 1:17 pmBOI  Boise Air Term. Gowen Fld-ORD Chicago O'Hare Intl
17h 34m1 stop San Diego
Alaska Airlines Logo
7:20 am - 7:53 pmORD  Chicago O'Hare Intl-BOI Boise Air Term. Gowen Fld
13h 33m1 stop San Diego
$323Alaska Airlines
Wed, Nov 4 - Tue, Nov 10
United Airlines Logo
2:40 pm - 11:59 pmIDA  Idaho Falls Fanning Field-ORD Chicago O'Hare Intl
8h 19m1 stop Denver Intl
United Airlines Logo
8:45 am - 1:37 pmORD  Chicago O'Hare Intl-IDA Idaho Falls Fanning Field
5h 52m1 stop Denver Intl
$341United Airlines
Wed, Dec 2 - Wed, Dec 9
United Airlines Logo
5:51 pm - 11:59 pmIDA  Idaho Falls Fanning Field-ORD Chicago O'Hare Intl
5h 08m1 stop Denver Intl
United Airlines Logo
7:00 am - 1:28 pmORD  Chicago O'Hare Intl-IDA Idaho Falls Fanning Field
7h 28m1 stop Denver Intl
$341United Airlines
Sat, Oct 24 - Wed, Oct 28
American Airlines Logo
1:24 pm - 6:10 pmBOI  Boise Air Term. Gowen Fld-ORD Chicago O'Hare Intl
3h 46mnonstop
American Airlines Logo
9:45 am - 12:37 pmORD  Chicago O'Hare Intl-BOI Boise Air Term. Gowen Fld
3h 52mnonstop
$343American Airlines
Tue, Nov 10 - Tue, Nov 17
American Airlines Logo
1:24 pm - 6:10 pmBOI  Boise Air Term. Gowen Fld-ORD Chicago O'Hare Intl
3h 46mnonstop
American Airlines Logo
9:45 am - 12:37 pmORD  Chicago O'Hare Intl-BOI Boise Air Term. Gowen Fld
3h 52mnonstop
$343American Airlines
Wed, Nov 4 - Sat, Nov 7
Delta Logo
5:35 am - 12:03 pmIDA  Idaho Falls Fanning Field-ORD Chicago O'Hare Intl
5h 28m1 stop Salt Lake City
Delta Logo
3:47 pm - 10:07 pmORD  Chicago O'Hare Intl-IDA Idaho Falls Fanning Field
7h 20m2 stops Minneapolis St Paul Salt Lake City
$346Delta
Wed, Dec 9 - Wed, Dec 16
Delta Logo
5:35 am - 12:03 pmIDA  Idaho Falls Fanning Field-ORD Chicago O'Hare Intl
5h 28m1 stop Salt Lake City
Delta Logo
3:47 pm - 10:07 pmORD  Chicago O'Hare Intl-IDA Idaho Falls Fanning Field
7h 20m2 stops Minneapolis St Paul Salt Lake City
$346Delta
Tue, Dec 8 - Wed, Dec 16

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Frontier flights from Idaho to Illinois

Our best Frontier deals on Idaho to Illinois flight tickets
Frontier
Nov 22
BOI7:55 pmBoise Air Term. Gowen Fld
8h 15m
1 stop
ORD5:10 amChicago O'Hare Intl
Nov 25
ORD5:19 amChicago O'Hare Intl
14h 41m
1 stop
BOI7:00 pmBoise Air Term. Gowen Fld
$295
Frontier
Dec 22
BOI6:56 pmBoise Air Term. Gowen Fld
9h 10m
1 stop
ORD5:06 amChicago O'Hare Intl
Dec 29
ORD6:11 amChicago O'Hare Intl
12h 50m
1 stop
BOI6:01 pmBoise Air Term. Gowen Fld
$304
Frontier
Dec 22
BOI6:56 pmBoise Air Term. Gowen Fld
9h 10m
1 stop
ORD5:06 amChicago O'Hare Intl
Dec 28
ORD6:11 amChicago O'Hare Intl
12h 50m
1 stop
BOI6:01 pmBoise Air Term. Gowen Fld
$317

Alaska Airlines flights from Idaho to Illinois

Our best Alaska Airlines deals on Idaho to Illinois flight tickets
Alaska Airlines
Nov 4
BOI6:43 pmBoise Air Term. Gowen Fld
17h 34m
1 stop
ORD1:17 pmChicago O'Hare Intl
Nov 12
ORD7:57 pmChicago O'Hare Intl
18h 31m
1 stop
BOI1:28 pmBoise Air Term. Gowen Fld
$323
Alaska Airlines
Oct 30
BOI8:22 pmBoise Air Term. Gowen Fld
8h 18m
1 stop
ORD5:40 amChicago O'Hare Intl
Nov 3
ORD2:07 pmChicago O'Hare Intl
6h 59m
1 stop
BOI8:06 pmBoise Air Term. Gowen Fld
$331
Alaska Airlines
Nov 10
BOI6:43 pmBoise Air Term. Gowen Fld
17h 34m
1 stop
ORD1:17 pmChicago O'Hare Intl
Nov 17
ORD3:59 pmChicago O'Hare Intl
8h 50m
1 stop
BOI11:49 pmBoise Air Term. Gowen Fld
$343

momondo Fare Finder

 
Use the filters below to find and compare flights from Idaho to Illinois that are best for you.

Fly from

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Route

Depart

Return

Price

Cheapest round-trip

BoiseChicago

BOI Boise Air Term. Gowen Fld - ORD Chicago O'Hare Intl

BOIORD

Boise Air Term. Gowen Fld

Sun 11/22

7:55 pm-5:10 am

1 stop8h 15m

Chicago O'Hare Intl

Wed 11/25

5:19 am-7:00 pm

1 stop14h 41m

$295

BoiseChicago

BOI Boise Air Term. Gowen Fld - ORD Chicago O'Hare Intl

BOIORD

Boise Air Term. Gowen Fld

Tue 12/22

6:56 pm-5:06 am

1 stop9h 10m

Chicago O'Hare Intl

Tue 12/29

6:11 am-6:01 pm

1 stop12h 50m

$304

BoiseChicago

BOI Boise Air Term. Gowen Fld - ORD Chicago O'Hare Intl

BOIORD

Boise Air Term. Gowen Fld

Wed 10/28

8:22 pm-5:40 am

1 stop8h 18m

Chicago O'Hare Intl

Thu 10/29

9:00 am-3:23 pm

1 stop7h 23m

$317

BoiseChicago

BOI Boise Air Term. Gowen Fld - ORD Chicago O'Hare Intl

BOIORD

Boise Air Term. Gowen Fld

Wed 11/4

6:43 pm-1:17 pm

1 stop17h 34m

Chicago O'Hare Intl

Tue 11/10

7:20 am-7:53 pm

1 stop13h 33m

$323

Idaho FallsChicago

IDA Idaho Falls Fanning Field - ORD Chicago O'Hare Intl

IDAORD

Idaho Falls Fanning Field

Wed 12/2

2:40 pm-11:59 pm

1 stop8h 19m

Chicago O'Hare Intl

Wed 12/9

8:45 am-1:37 pm

1 stop5h 52m

$341

Idaho FallsChicago

IDA Idaho Falls Fanning Field - ORD Chicago O'Hare Intl

IDAORD

Idaho Falls Fanning Field

Sat 10/24

5:51 pm-11:59 pm

1 stop5h 08m

Chicago O'Hare Intl

Wed 10/28

7:00 am-1:28 pm

1 stop7h 28m

$341
Quickest round-trip

BoiseChicago

BOI Boise Air Term. Gowen Fld - ORD Chicago O'Hare Intl

BOIORD

Boise Air Term. Gowen Fld

Tue 11/10

1:24 pm-6:10 pm

Nonstop3h 46m

Chicago O'Hare Intl

Tue 11/17

9:45 am-12:37 pm

Nonstop3h 52m

$343

BoiseChicago

BOI Boise Air Term. Gowen Fld - ORD Chicago O'Hare Intl

BOIORD

Boise Air Term. Gowen Fld

Wed 11/4

1:24 pm-6:10 pm

Nonstop3h 46m

Chicago O'Hare Intl

Sat 11/7

9:45 am-12:37 pm

Nonstop3h 52m

$343

Idaho FallsChicago

IDA Idaho Falls Fanning Field - ORD Chicago O'Hare Intl

IDAORD

Idaho Falls Fanning Field

Wed 12/9

5:35 am-12:03 pm

1 stop5h 28m

Chicago O'Hare Intl

Wed 12/16

3:47 pm-10:07 pm

2 stops7h 20m

$346

Idaho FallsChicago

IDA Idaho Falls Fanning Field - ORD Chicago O'Hare Intl

IDAORD

Idaho Falls Fanning Field

Tue 12/8

5:35 am-12:03 pm

1 stop5h 28m

Chicago O'Hare Intl

Wed 12/16

3:47 pm-10:07 pm

2 stops7h 20m

$346

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Illinois from

How to get the cheapest flight ticket from Idaho to Illinois

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Illinois?

The cheapest month to fly to Illinois from Idaho is in February. Flight prices, which tend to average around $340, are often lower during this time because this is during the off-season. If you aren’t able to travel to Illinois during the month of February, then flying in January is also cheap. Prices for this month can be found on momondo for an average of $402.

What is the cheapest day to depart on your flight to Illinois?

The cheapest day to depart from Idaho to Illinois is on a Thursday when prices can be found for as low as $517. Flights from Idaho to Illinois on a Sunday will generally be more expensive and average around $752. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

What is the cheapest time of day to depart on your flight to Illinois?

Our most recent data shows that the best time of day to fly to Illinois is in the afternoon. Flights from Idaho to Illinois during this time can be as low as $433. Flights in the morning are often more expensive with an average ticket price of $623.

What is the cheapest Idaho to Illinois flight route?

Fly from Idaho Falls Fanning Field to Chicago O'Hare Intl for the best Idaho - Illinois flight prices

How far in advance should I book a flight from Idaho to Illinois?

You are more likely to see cheaper flights to Illinois from Idaho when booking weeks ahead of your departure date. In general, you can expect to find flights to Illinois for around $420 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Illinois from Idaho for as low as $313 on momondo.

What cabin class options are available on Idaho to Illinois flights?

There are 4 cabin classes available to choose from on Idaho to Illinois flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Idaho to Illinois flights?

You could potentially save up to 6% on your flight if you consider stops on a Idaho to Illinois flight.

Cheap Idaho to Illinois flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Idaho to Illinois

Best Price Found

$132

Fastest flight time

3h 09m

Direct flights

Every day

Airports in Illinois

98 airports
The best one-way flight to Illinois from Idaho in the past 72 hours is $132. The best round-trip flight deal from Idaho to Illinois found on momondo in the last 72 hours is $295.
The fastest flight from Idaho to Illinois takes 3h 09m
Direct flights go from Idaho to Illinois every day.
There are 98 airports in Illinois. From Idaho there are direct flights to Chicago O'Hare Intl (ORD).
Search flight deals

Frequently asked questions about flying from Idaho to Illinois

  • When did momondo last update prices for flights from Idaho to Illinois?

    Prices for flights from Idaho to Illinois refresh daily.

  • How many operators does momondo search for flights from Idaho to Illinois?

  • How old do you have to be to fly from Idaho to Illinois?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Idaho to Illinois.

  • What documentation or ID do you need to fly to Illinois?

    The required travel and health documents for your Illinois trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Illinois. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular plane model from Idaho to Illinois?

Best airlines flying from Idaho to Illinois

Compare and see reviews for airlines that fly from Idaho to Illinois with momondo
Airline
Rating
Free Cancellation
Price
United AirlinesPriceFrom $268Free CancellationRating
7.4
10,247 reviews
Search United Airlines flights
DeltaPriceFrom $268Free CancellationRating
7.8
8,606 reviews
Search Delta flights
American AirlinesPriceFrom $272Free CancellationRating
7.0
12,098 reviews
Search American Airlines flights
Alaska AirlinesPriceFrom $298Free CancellationRating
7.9
12,981 reviews
Search Alaska Airlines flights
SouthwestPriceFrom $318Free CancellationRating
8.0
4,200 reviews
Search Southwest flights

Why use momondo?

Why should I use momondo to find a flight deal from Idaho to Illinois?

Finding the right flight to Illinois from Idaho is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Illinois quick and easy, saving you time and money.

Can I find flights from Idaho to Illinois with flexible booking policies on momondo?

momondo does allow users to show only those flights to Illinois from Idaho which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Idaho to Illinois?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Illinois from Idaho.

I’m not ready to book a flight from Idaho to Illinois right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Illinois, momondo offers a useful price alert feature which will track prices for flights to Illinois from Idaho and alert you when they change.

An easier way to manage your Illinois trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
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Find better results for your trip to Illinois

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