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Cheap flights from Illinois to Idaho from $99

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Illinois to Idaho departing on 2/4. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Illinois to Idaho

Cheap round-trip flights

These are some of the best round-trip flight deals from Illinois to Idaho that have been recently found on momondo from popular airlines, departing in the coming months.

Cheap one-way flights

Flying one-way? These are some of the best deals recently discovered on momondo for flights from Illinois to Idaho.

Cheap last minute flights

Planning a quick getaway from Illinois to Idaho? These are the last-minute flight deals available now.

Cheap direct flights

If you prefer a non-stop journey, check out our latest direct flight deals to Idaho, so you can enjoy a seamless trip without layovers.

Cheap bus & train deals from Illinois to Idaho

Find recent round-trip train or bus tickets from Illinois to Idaho.

All round-trip flight deals to Idaho

The cheapest plane tickets to Idaho found on KAYAK recently.
10:45 pm - 6:46 pmORD-BOI
21h 01m1 stop
7:41 pm - 9:50 pmBOI-ORD
25h 09m1 stop
$188Spirit Airlines
Find Deal
Wed, Feb 12 - Tue, Feb 18
7:15 am - 12:18 pmORD-GEG
7h 03m1 stop
1:25 pm - 11:56 pmGEG-ORD
8h 31m1 stop
$199Delta
Find Deal
Wed, Feb 12 - Sat, Feb 15
7:45 am - 1:45 pmORD-BOI
7h 00m1 stop
12:04 pm - 11:59 pmBOI-ORD
10h 55m1 stop
$228Alaska Airlines
Find Deal
Tue, Feb 4 - Wed, Feb 5
5:28 pm - 11:53 pmORD-GEG
8h 25m1 stop
8:30 pm - 2:03 pmGEG-ORD
15h 33m1 stop
$238Alaska Airlines
Find Deal
Mon, Feb 3 - Mon, Feb 10
7:35 pm - 10:49 pmORD-BOI
4h 14mnonstop
5:25 pm - 11:52 pmBOI-ORD
5h 27m1 stop
$281United Airlines
Find Deal
Fri, Apr 4 - Mon, Apr 7
1:05 pm - 5:52 pmORD-BOI
5h 47m1 stop
5:25 pm - 11:52 pmBOI-ORD
5h 27m1 stop
$290United Airlines
Find Deal
Fri, Apr 4 - Mon, Apr 7
6:15 am - 10:15 amORD-GEG
6h 00m1 stop
5:10 am - 4:45 pmGEG-ORD
9h 35m1 stop
$327Southwest
Find Deal
Sun, Feb 23 - Fri, Feb 28
9:52 am - 12:15 pmORD-JAC
3h 23mnonstop
12:47 pm - 4:51 pmJAC-ORD
3h 04mnonstop
$328American Airlines
Find Deal
Mon, Feb 3 - Wed, Feb 12
9:52 am - 12:15 pmORD-JAC
3h 23mnonstop
12:47 pm - 4:51 pmJAC-ORD
3h 04mnonstop
$329American Airlines
Find Deal
Mon, Feb 3 - Wed, Feb 12
1:45 pm - 11:40 pmMDW-BOI
10h 55m2 stops
11:50 am - 10:25 pmBOI-MDW
9h 35m2 stops
$334Southwest
Find Deal
Mon, Mar 3 - Tue, Mar 4
7:45 am - 12:43 pmORD-GEG
6h 58m1 stop
$99Alaska Airlines
Find Deal
Tue, Feb 4
10:45 pm - 6:46 pmORD-BOI
21h 01m1 stop
$100Spirit Airlines
Find Deal
Wed, Feb 12
5:45 am - 12:00 pmORD-GEG
8h 15m1 stop
$100Delta
Find Deal
Tue, Feb 11
6:00 am - 12:00 pmMDW-GEG
8h 00m1 stop
$100Delta
Find Deal
Tue, Feb 11
10:25 pm - 10:15 amMDW-BOI
12h 50m1 stop
$160Southwest
Find Deal
Fri, Feb 14
5:00 am - 12:25 pmORD-IDA
8h 25m1 stop
$164American Airlines
Find Deal
Mon, Feb 3
10:35 pm - 10:55 amMDW-GEG
14h 20m1 stop
$165Southwest
Find Deal
Fri, Feb 14
6:00 am - 12:49 pmORD-GEG
8h 49m1 stop
$180American Airlines
Find Deal
Wed, May 7
12:45 pm - 9:07 pmORD-IDA
9h 22m2 stops
$209United Airlines
Find Deal
Mon, Feb 24
5:00 am - 9:43 amORD-BOI
5h 43m1 stop
$230United Airlines
Find Deal
Sun, Jul 13
7:45 am - 1:45 pmORD-BOI
7h 00m1 stop
6:20 pm - 2:03 pmBOI-ORD
18h 43m1 stop
$393Alaska Airlines
Find Deal
Thu, Jan 16 - Tue, Jan 21
6:59 pm - 11:58 pmMDW-BOI
5h 59m1 stop
5:30 am - 12:46 pmBOI-MDW
6h 16m1 stop
$404Delta
Find Deal
Fri, Jan 17 - Tue, Jan 21
7:00 am - 6:40 pmORD-GEG
13h 40m2 stops
5:30 am - 2:25 pmGEG-ORD
6h 55m1 stop
$459Southwest
Find Deal
Sat, Jan 18 - Sun, Jan 19
7:30 am - 3:40 pmORD-BOI
9h 10m2 stops
3:40 pm - 11:05 pmBOI-ORD
6h 25m1 stop
$479Southwest
Find Deal
Thu, Jan 16 - Tue, Jan 21
9:52 am - 12:15 pmORD-JAC
3h 23mnonstop
12:47 pm - 4:51 pmJAC-ORD
3h 04mnonstop
$494American Airlines
Find Deal
Fri, Jan 17 - Thu, Jan 23
9:00 am - 12:20 pmORD-BOI
4h 20mnonstop
8:00 am - 12:45 pmBOI-ORD
3h 45mnonstop
$499United Airlines
Find Deal
Sat, Jan 18 - Mon, Jan 20
9:52 am - 12:15 pmORD-JAC
3h 23mnonstop
2:57 pm - 11:50 pmJAC-ORD
7h 53m1 stop
$504American Airlines
Find Deal
Fri, Jan 17 - Thu, Jan 23
8:45 am - 1:23 pmORD-BOI
5h 38m1 stop
8:00 am - 12:45 pmBOI-ORD
3h 45mnonstop
$509United Airlines
Find Deal
Sat, Jan 18 - Mon, Jan 20
5:50 am - 9:49 amORD-BOI
28h 59m3 stops
7:38 pm - 9:00 pmBOI-ORD
24h 22m2 stops
Sat, Jan 18 - Mon, Jan 20
5:50 am - 9:49 amORD-BOI
28h 59m3 stops
7:38 pm - 11:32 pmBOI-ORD
26h 54m3 stops
Sat, Jan 18 - Mon, Jan 20
9:52 am - 12:15 pmORD-JAC
3h 23mnonstop
12:47 pm - 4:51 pmJAC-ORD
3h 04mnonstop
$328American Airlines
Find Deal
Mon, Feb 3 - Wed, Feb 12
9:52 am - 12:15 pmORD-JAC
3h 23mnonstop
12:47 pm - 4:51 pmJAC-ORD
3h 04mnonstop
$329American Airlines
Find Deal
Mon, Feb 3 - Wed, Feb 12
9:00 am - 12:20 pmORD-BOI
4h 20mnonstop
8:00 am - 12:45 pmBOI-ORD
3h 45mnonstop
$329United Airlines
Find Deal
Tue, Feb 4 - Sat, Feb 8
9:52 am - 12:15 pmORD-JAC
3h 23mnonstop
12:47 pm - 4:51 pmJAC-ORD
3h 04mnonstop
$344American Airlines
Find Deal
Mon, Feb 3 - Wed, Feb 12
9:00 am - 12:20 pmORD-BOI
4h 20mnonstop
12:15 pm - 5:00 pmBOI-ORD
3h 45mnonstop
$349United Airlines
Find Deal
Sat, Feb 1 - Wed, Feb 5
8:58 am - 12:02 pmORD-SUN
4h 04mnonstop
12:43 pm - 5:10 pmSUN-ORD
3h 27mnonstop
$349United Airlines
Find Deal
Fri, Mar 14 - Thu, Mar 20
7:45 pm - 9:56 pmORD-GEG
4h 11mnonstop
7:30 am - 1:14 pmGEG-ORD
3h 44mnonstop
$351United Airlines
Find Deal
Wed, Jun 18 - Tue, Jun 24
7:45 pm - 9:56 pmORD-GEG
4h 11mnonstop
7:30 am - 1:14 pmGEG-ORD
3h 44mnonstop
$359United Airlines
Find Deal
Tue, Jun 3 - Tue, Jun 10
10:59 am - 12:59 pmORD-GEG
4h 00mnonstop
1:40 pm - 7:31 pmGEG-ORD
3h 51mnonstop
$475Alaska Airlines
Find Deal
Thu, Jul 3 - Wed, Jul 16
12:00 pm - 1:55 pmMDW-GEG
3h 55mnonstop
7:10 am - 12:35 pmGEG-MDW
3h 25mnonstop
$644Southwest
Find Deal
Thu, Jul 10 - Sun, Jul 13

United Airlines flights from Illinois to Idaho

Our best United Airlines deals on Illinois to Idaho flight tickets
United Airlines
Apr 4
ORD7:35 pmChicago O'Hare Intl
4h 14m
BOI10:49 pmBoise Air Term. Gowen Fld
Apr 7
BOI5:25 pmBoise Air Term. Gowen Fld
5h 27m
1 stop
ORD11:52 pmChicago O'Hare Intl
United Airlines
Apr 4
ORD1:05 pmChicago O'Hare Intl
5h 47m
1 stop
BOI5:52 pmBoise Air Term. Gowen Fld
Apr 7
BOI5:25 pmBoise Air Term. Gowen Fld
5h 27m
1 stop
ORD11:52 pmChicago O'Hare Intl
United Airlines
Jun 17
ORD5:02 amChicago O'Hare Intl
5h 47m
1 stop
BOI9:49 amBoise Air Term. Gowen Fld
Jun 24
BOI5:22 pmBoise Air Term. Gowen Fld
6h 03m
1 stop
ORD12:25 amChicago O'Hare Intl

Spirit Airlines flights from Illinois to Idaho

Our best Spirit Airlines deals on Illinois to Idaho flight tickets
Spirit Airlines
Feb 12
ORD10:45 pmChicago O'Hare Intl
21h 01m
1 stop
BOI6:46 pmBoise Air Term. Gowen Fld
Feb 18
BOI7:41 pmBoise Air Term. Gowen Fld
25h 09m
1 stop
ORD9:50 pmChicago O'Hare Intl
Spirit Airlines
Feb 6
ORD10:47 pmChicago O'Hare Intl
20h 56m
1 stop
BOI6:43 pmBoise Air Term. Gowen Fld
Feb 10
BOI7:38 pmBoise Air Term. Gowen Fld
8h 53m
1 stop
ORD5:31 amChicago O'Hare Intl
Spirit Airlines
Feb 13
ORD10:45 pmChicago O'Hare Intl
21h 01m
1 stop
BOI6:46 pmBoise Air Term. Gowen Fld
Feb 17
BOI7:41 pmBoise Air Term. Gowen Fld
9h 26m
1 stop
ORD6:07 amChicago O'Hare Intl

See travel insights to Idaho from

How to get the cheapest flight ticket from Illinois to Idaho

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 Idaho?

In general, September is the cheapest month to fly from Illinois to Idaho. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $352. If you don’t want to visit Idaho in September, then you should wait until January to fly from Illinois, when ticket prices are also cheap, with an average price of $393.

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

Our data shows that Friday is the least expensive day to fly to Idaho. Tickets to fly out on this day can be as low as $407. On the other hand, Saturday is the most expensive day to depart from Illinois because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $551.

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

According to our data, the cheapest time of day to fly to Idaho is at noon. momondo users have found flights departing from Illinois to Idaho at noon for as low as $327. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. In the morning is when there is more demand to fly to Idaho, so prices are often more expensive at around $513 per ticket.

What is the cheapest Illinois to Idaho flight route?

Fly from Chicago O'Hare Intl to Hailey Sun Valley-Friedman for the best Illinois - Idaho flight prices

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

The ideal time to book your flight to Idaho is 12 days in advance when prices tend to average $459. Keep in mind that you might be able to find cheaper flights to Idaho at any time. In fact, our users found flights for as low as $199 in the past 72 hours.

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

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

Cheap Illinois to Idaho flight deals and tips

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

Best Price Found

$99

Fastest flight time

3h 11m

Direct flights

Every day

Airports in Idaho

5 airports
The best one-way flight to Idaho from Illinois in the past 72 hours is $99. The best round-trip flight deal from Illinois to Idaho found on momondo in the last 72 hours is $188.
The fastest flight from Illinois to Idaho takes 3h 11m
Direct flights go from Illinois to Idaho every day.
There are 5 airports near Idaho: Idaho Falls Fanning Field (IDA), Spokane (GEG), Boise Air Term. Gowen Fld (BOI), Jackson Hole (JAC), Hailey Sun Valley-Friedman (SUN)

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

    Prices for flights from Illinois to Idaho were last updated today.

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

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

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Illinois to Idaho.

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

    The travel and health documents you'll need for your trip to Idaho may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Idaho. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

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


Best airlines flying from Illinois to Idaho

Compare and see reviews for airlines that fly from Illinois to Idaho with momondo
Airline
Rating
Free Cancellation
Price
Spirit AirlinesPriceFrom $115Free CancellationRating
6.3
8,089 reviews
Search Spirit Airlines flights
Alaska AirlinesPriceFrom $227Free CancellationRating
8.0
9,672 reviews
Search Alaska Airlines flights
DeltaPriceFrom $228Free CancellationRating
8.0
8,508 reviews
Search Delta flights
American AirlinesPriceFrom $258Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
SouthwestPriceFrom $258Free CancellationRating
8.1
4,659 reviews
Search Southwest flights
United AirlinesPriceFrom $320Free CancellationRating
7.4
8,961 reviews
Search United Airlines flights

Why use momondo?

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

It is quick and easy to find Illinois to Idaho flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Idaho that suits you.

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

Flights from Illinois to Idaho with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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

momondo provides multiple filters to help you find the best flight to Idaho from Illinois. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

Of course. momondo tracks the price of Illinois to Idaho flights. All you need is a valid email address and we will do the rest; it is that quick and easy.


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