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Cheap flights from Idaho to Illinois from $149

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.
Multiple Airlines Logo
5:46 am - 1:13 pmBOI  Boise Air Term. Gowen Fld-ORD Chicago O'Hare Intl
6h 27m1 stop Portland
Multiple Airlines Logo
7:00 am - 1:41 pmORD  Chicago O'Hare Intl-BOI Boise Air Term. Gowen Fld
7h 41m1 stop Las Vegas Harry Reid Intl
$350Multiple Airlines
Tue, Jan 12 - Thu, Jan 14
Multiple Airlines Logo
6:15 pm - 5:01 amBOI  Boise Air Term. Gowen Fld-ORD Chicago O'Hare Intl
9h 46m1 stop Las Vegas Harry Reid Intl
Multiple Airlines Logo
8:59 pm - 9:44 amORD  Chicago O'Hare Intl-BOI Boise Air Term. Gowen Fld
13h 45m1 stop Seattle/Tacoma Intl
$351Multiple Airlines
Fri, Dec 11 - Sun, Dec 20
Alaska Airlines Logo
8:49 pm - 5:26 amBOI  Boise Air Term. Gowen Fld-ORD Chicago O'Hare Intl
7h 37m1 stop Seattle/Tacoma Intl
Alaska Airlines Logo
9:30 am - 3:28 pmORD  Chicago O'Hare Intl-BOI Boise Air Term. Gowen Fld
6h 58m1 stop Seattle/Tacoma Intl
$357Alaska Airlines
Sat, Feb 20 - Tue, Mar 2
Alaska Airlines Logo
6:42 am - 2:21 pmBOI  Boise Air Term. Gowen Fld-ORD Chicago O'Hare Intl
6h 39m1 stop Seattle/Tacoma Intl
Alaska Airlines Logo
6:00 am - 3:05 pmORD  Chicago O'Hare Intl-BOI Boise Air Term. Gowen Fld
10h 05m1 stop Seattle/Tacoma Intl
$363Alaska Airlines
Sat, Mar 6 - Tue, May 18
American Airlines Logo
2:42 pm - 11:59 pmBOI  Boise Air Term. Gowen Fld-MLI Moline Quad-City
8h 17m1 stop Dallas/Fort Worth
American Airlines Logo
4:58 pm - 12:32 amMLI  Moline Quad-City-BOI Boise Air Term. Gowen Fld
8h 34m1 stop Chicago O'Hare Intl
$369American Airlines
Wed, Dec 16 - Fri, Jan 1
United Airlines Logo
4:10 pm - 11:59 pmIDA  Idaho Falls Fanning Field-ORD Chicago O'Hare Intl
6h 49m1 stop Denver Intl
United Airlines Logo
7:00 am - 1:37 pmORD  Chicago O'Hare Intl-IDA Idaho Falls Fanning Field
7h 37m1 stop Denver Intl
$371United Airlines
Sat, Dec 12 - Tue, Dec 15
United Airlines Logo
2:40 pm - 9:34 pmIDA  Idaho Falls Fanning Field-ORD Chicago O'Hare Intl
5h 54m1 stop Denver Intl
United Airlines Logo
7:00 am - 1:37 pmORD  Chicago O'Hare Intl-IDA Idaho Falls Fanning Field
7h 37m1 stop Denver Intl
$371United Airlines
Tue, Dec 8 - Tue, Dec 15
Delta Logo
6:00 am - 3:30 pmIDA  Idaho Falls Fanning Field-ORD Chicago O'Hare Intl
8h 30m1 stop Salt Lake City
Delta Logo
7:30 am - 12:27 pmORD  Chicago O'Hare Intl-IDA Idaho Falls Fanning Field
5h 57m1 stop Salt Lake City
$371Delta
Sat, Apr 3 - Sat, Apr 10
Delta Logo
1:10 pm - 9:53 pmIDA  Idaho Falls Fanning Field-ORD Chicago O'Hare Intl
7h 43m1 stop Salt Lake City
Delta Logo
7:30 am - 12:27 pmORD  Chicago O'Hare Intl-IDA Idaho Falls Fanning Field
5h 57m1 stop Salt Lake City
$371Delta
Wed, Mar 31 - Sat, Apr 10
American Airlines Logo
2:11 pm - 12:16 amBOI  Boise Air Term. Gowen Fld-MLI Moline Quad-City
9h 05m2 stops Phoenix Sky Harbor Intl Chicago O'Hare Intl
American Airlines Logo
4:58 pm - 12:32 amMLI  Moline Quad-City-BOI Boise Air Term. Gowen Fld
8h 34m1 stop Chicago O'Hare Intl
$374American Airlines
Wed, Dec 16 - Fri, Jan 1

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Delta flights from Idaho to Illinois

Our best Delta deals on Idaho to Illinois flight tickets
Delta
Mar 31
IDA1:10 pmIdaho Falls Fanning Field
7h 43m
1 stop
ORD9:53 pmChicago O'Hare Intl
Apr 10
ORD6:00 amChicago O'Hare Intl
7h 27m
2 stops
IDA12:27 pmIdaho Falls Fanning Field
$376
Delta
Mar 30
IDA6:00 amIdaho Falls Fanning Field
9h 49m
2 stops
ORD4:49 pmChicago O'Hare Intl
Apr 10
ORD7:30 amChicago O'Hare Intl
5h 57m
1 stop
IDA12:27 pmIdaho Falls Fanning Field
$386
Delta
Dec 5
BOI3:44 pmBoise Air Term. Gowen Fld
7h 13m
1 stop
ORD11:57 pmChicago O'Hare Intl
Dec 12
ORD6:20 amChicago O'Hare Intl
8h 45m
1 stop
BOI2:05 pmBoise Air Term. Gowen Fld
$387

United Airlines flights from Idaho to Illinois

Our best United Airlines deals on Idaho to Illinois flight tickets
United Airlines
Dec 12
IDA4:10 pmIdaho Falls Fanning Field
6h 49m
1 stop
ORD11:59 pmChicago O'Hare Intl
Dec 15
ORD7:00 amChicago O'Hare Intl
7h 37m
1 stop
IDA1:37 pmIdaho Falls Fanning Field
$371
United Airlines
Dec 12
IDA4:10 pmIdaho Falls Fanning Field
6h 49m
1 stop
ORD11:59 pmChicago O'Hare Intl
Dec 15
ORD7:00 amChicago O'Hare Intl
7h 37m
1 stop
IDA1:37 pmIdaho Falls Fanning Field
$392
United Airlines
Dec 10
BOI2:48 pmBoise Air Term. Gowen Fld
8h 11m
1 stop
ORD11:59 pmChicago O'Hare Intl
Dec 16
ORD8:45 amChicago O'Hare Intl
4h 22m
BOI12:07 pmBoise Air Term. Gowen Fld
$393

momondo Fare Finder

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

Fly from

Fly to

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

Tue 1/12

5:46 am-1:13 pm

1 stop6h 27m

Chicago O'Hare Intl

Thu 1/14

7:00 am-1:41 pm

1 stop7h 41m

$350

BoiseChicago

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

BOIORD

Boise Air Term. Gowen Fld

Fri 12/11

6:15 pm-5:01 am

1 stop9h 46m

Chicago O'Hare Intl

Sun 12/20

8:59 pm-9:44 am

1 stop13h 45m

$351

BoiseChicago

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

BOIORD

Boise Air Term. Gowen Fld

Sat 2/20

8:49 pm-5:26 am

1 stop7h 37m

Chicago O'Hare Intl

Tue 3/2

9:30 am-3:28 pm

1 stop6h 58m

$357

BoiseChicago

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

BOIORD

Boise Air Term. Gowen Fld

Sat 3/6

6:42 am-2:21 pm

1 stop6h 39m

Chicago O'Hare Intl

Tue 5/18

6:00 am-3:05 pm

1 stop10h 05m

$363

BoiseMoline

BOI Boise Air Term. Gowen Fld - MLI Moline Quad-City

BOIMLI

Boise Air Term. Gowen Fld

Wed 12/16

2:42 pm-11:59 pm

1 stop8h 17m

Moline Quad-City

Fri 1/1

4:58 pm-12:32 am

1 stop8h 34m

$369

Idaho FallsChicago

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

IDAORD

Idaho Falls Fanning Field

Sat 12/12

4:10 pm-11:59 pm

1 stop6h 49m

Chicago O'Hare Intl

Tue 12/15

7:00 am-1:37 pm

1 stop7h 37m

$371
Quickest round-trip

Idaho FallsChicago

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

IDAORD

Idaho Falls Fanning Field

Tue 12/8

2:40 pm-9:34 pm

1 stop5h 54m

Chicago O'Hare Intl

Tue 12/15

7:00 am-1:37 pm

1 stop7h 37m

$371

Idaho FallsChicago

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

IDAORD

Idaho Falls Fanning Field

Sat 4/3

6:00 am-3:30 pm

1 stop8h 30m

Chicago O'Hare Intl

Sat 4/10

7:30 am-12:27 pm

1 stop5h 57m

$371

Idaho FallsChicago

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

IDAORD

Idaho Falls Fanning Field

Wed 3/31

1:10 pm-9:53 pm

1 stop7h 43m

Chicago O'Hare Intl

Sat 4/10

7:30 am-12:27 pm

1 stop5h 57m

$371

BoiseMoline

BOI Boise Air Term. Gowen Fld - MLI Moline Quad-City

BOIMLI

Boise Air Term. Gowen Fld

Wed 12/16

2:11 pm-12:16 am

2 stops9h 05m

Moline Quad-City

Fri 1/1

4:58 pm-12:32 am

1 stop8h 34m

$374

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 August is also cheap. Prices for this month can be found on momondo for an average of $405.

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

The cheapest day to depart from Idaho to Illinois is on a Wednesday when prices can be found for as low as $521. Flights from Idaho to Illinois on a Sunday will generally be more expensive and average around $749. 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 $435. Flights in the morning are often more expensive with an average ticket price of $626.

What is the cheapest Idaho to Illinois flight route?

Fly from Boise Air Term. Gowen Fld 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 $438 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 14% 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

$149

Fastest flight time

3h 10m

Direct flights

Every day

Airports in Illinois

98 airports
The best one-way flight to Illinois from Idaho in the past 72 hours is $149. The best round-trip flight deal from Idaho to Illinois found on momondo in the last 72 hours is $350.
The fastest flight from Idaho to Illinois takes 3h 10m
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
Alaska AirlinesPriceFrom $191Free CancellationRating
7.9
13,156 reviews
Search Alaska Airlines flights
DeltaPriceFrom $253Free CancellationRating
7.8
8,704 reviews
Search Delta flights
American AirlinesPriceFrom $272Free CancellationRating
7.0
12,227 reviews
Search American Airlines flights
United AirlinesPriceFrom $313Free CancellationRating
7.3
10,474 reviews
Search United Airlines flights
SouthwestPriceFrom $334Free CancellationRating
8.0
4,217 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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