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Cheap flights from Illinois to Idaho Falls from $234

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 Falls departing on 1/1. 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 Falls

Cheap round-trip flights

These are some of the best round-trip flight deals from Illinois to Idaho Falls 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 Falls.

Cheap last minute flights

Planning a quick getaway from Illinois to Idaho Falls? 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 Falls, so you can enjoy a seamless trip without layovers.

Cheap bus & train deals from Illinois to Idaho Falls

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

All round-trip flight deals to Idaho Falls

The cheapest plane tickets to Idaho Falls found on KAYAK recently.
2:27 pm - 10:17 pmSTL-IDA
8h 50m1 stop
5:30 am - 1:42 pmIDA-STL
7h 12m1 stop
$314American Airlines
Find Deal
Sat, Jan 11 - Wed, Jan 15
5:00 am - 12:25 pmORD-IDA
8h 25m1 stop
12:55 pm - 9:14 pmIDA-ORD
7h 19m1 stop
$334American Airlines
Find Deal
Wed, Jan 8 - Sun, Jan 12
10:47 pm - 1:56 pmORD-IDA
16h 09m2 stops
6:32 pm - 5:30 amIDA-ORD
9h 58m1 stop
Thu, Jan 16 - Mon, Jan 20
10:47 pm - 11:29 amORD-IDA
13h 42m1 stop
6:32 pm - 5:30 amIDA-ORD
9h 58m1 stop
Thu, Jan 16 - Mon, Jan 20
5:28 pm - 3:27 pmORD-IDA
22h 59m1 stop
4:04 pm - 1:07 pmIDA-ORD
20h 03m2 stops
$379Alaska Airlines
Find Deal
Thu, Jan 9 - Sun, Jan 12
6:55 pm - 3:27 pmORD-IDA
21h 32m2 stops
4:04 pm - 11:59 pmIDA-ORD
6h 55m1 stop
$383Alaska Airlines
Find Deal
Fri, Jan 24 - Mon, Jan 27
8:00 am - 5:09 pmSTL-IDA
10h 09m2 stops
5:50 pm - 2:14 pmIDA-STL
19h 24m2 stops
$420United Airlines
Find Deal
Wed, Jan 8 - Mon, Jan 13
7:10 am - 1:29 pmORD-IDA
7h 19m1 stop
1:48 pm - 11:25 amIDA-ORD
20h 37m1 stop
$430United Airlines
Find Deal
Sat, Dec 14 - Mon, Dec 23
7:40 am - 12:23 pmSTL-IDA
5h 43m1 stop
6:55 pm - 12:57 amIDA-STL
5h 02m1 stop
$574Delta
Find Deal
Thu, Dec 5 - Mon, Dec 9
6:35 pm - 10:53 pmSTL-IDA
5h 18m1 stop
1:09 pm - 11:43 pmIDA-STL
9h 34m2 stops
$579Delta
Find Deal
Thu, Dec 5 - Mon, Dec 9
9:40 pm - 9:51 amORD-IDA
13h 11m1 stop
$234United Airlines
Find Deal
Wed, Jan 1
7:00 am - 11:59 pmSTL-IDA
17h 59m1 stop
$262Alaska Airlines
Find Deal
Wed, Dec 25
7:00 am - 11:59 pmORD-IDA
17h 59m2 stops
$297Alaska Airlines
Find Deal
Wed, Jan 1
7:10 am - 9:51 amORD-IDA
27h 41m1 stop
$303United Airlines
Find Deal
Wed, Dec 18
3:53 pm - 9:51 amORD-IDA
18h 58m2 stops
$311United Airlines
Find Deal
Wed, Dec 18
8:00 am - 5:00 pmSTL-IDA
10h 00m2 stops
$367United Airlines
Find Deal
Wed, Dec 25
10:50 am - 5:18 pmORD-IDA
7h 28m1 stop
5:59 pm - 11:57 pmIDA-ORD
4h 58m1 stop
$824United Airlines
Find Deal
Sat, Nov 23 - Sun, Nov 24
10:05 am - 6:24 pmORD-IDA
9h 19m2 stops
6:10 am - 12:42 pmIDA-ORD
5h 32m1 stop
$829Delta
Find Deal
Sat, Nov 23 - Mon, Nov 25
3:30 pm - 10:53 pmORD-IDA
8h 23m2 stops
6:10 am - 4:52 pmIDA-ORD
9h 42m2 stops
$834Delta
Find Deal
Sat, Nov 23 - Mon, Nov 25
2:17 pm - 10:53 pmMDW-IDA
9h 36m2 stops
6:10 am - 6:32 pmIDA-MDW
11h 22m2 stops
$834Delta
Find Deal
Sat, Nov 23 - Mon, Nov 25
8:20 pm - 9:53 amORD-IDA
14h 33m2 stops
5:59 pm - 11:57 pmIDA-ORD
4h 58m1 stop
$836United Airlines
Find Deal
Fri, Nov 22 - Tue, Nov 26
9:05 am - 9:14 pmORD-IDA
13h 09m2 stops
7:00 am - 8:22 pmIDA-ORD
12h 22m2 stops
$847United Airlines
Find Deal
Sat, Nov 23 - Sun, Nov 24
1:31 pm - 10:53 pmORD-IDA
10h 22m2 stops
6:10 am - 6:34 pmIDA-ORD
11h 24m2 stops
$911Delta
Find Deal
Fri, Nov 22 - Mon, Nov 25
6:30 am - 1:09 pmBMI-IDA
7h 39m1 stop
1:40 pm - 9:31 pmIDA-BMI
6h 51m1 stop
$1,005American Airlines
Find Deal
Fri, Nov 22 - Sun, Nov 24
6:30 am - 1:09 pmBMI-IDA
7h 39m1 stop
1:40 pm - 10:56 amIDA-BMI
20h 16m2 stops
$1,069American Airlines
Find Deal
Fri, Nov 22 - Sun, Nov 24
5:30 am - 10:15 pmBMI-IDA
17h 45m2 stops
1:40 pm - 10:56 amIDA-BMI
20h 16m2 stops
$1,295American Airlines
Find Deal
Fri, Nov 22 - Sun, Nov 24

Alaska Airlines flights from Illinois to Idaho Falls

Our best Alaska Airlines deals on Illinois to Idaho Falls flight tickets
Alaska Airlines
Jan 9
ORD5:28 pmChicago O'Hare Intl
22h 59m
1 stop
IDA3:27 pmIdaho Falls Fanning Field
Jan 12
IDA4:04 pmIdaho Falls Fanning Field
20h 03m
2 stops
ORD1:07 pmChicago O'Hare Intl
Alaska Airlines
Jan 24
ORD6:55 pmChicago O'Hare Intl
21h 32m
2 stops
IDA3:27 pmIdaho Falls Fanning Field
Jan 27
IDA4:04 pmIdaho Falls Fanning Field
6h 55m
1 stop
ORD11:59 pmChicago O'Hare Intl
Alaska Airlines
Jan 8
ORD5:28 pmChicago O'Hare Intl
22h 59m
1 stop
IDA3:27 pmIdaho Falls Fanning Field
Jan 12
IDA4:04 pmIdaho Falls Fanning Field
20h 03m
2 stops
ORD1:07 pmChicago O'Hare Intl

American Airlines flights from Illinois to Idaho Falls

Our best American Airlines deals on Illinois to Idaho Falls flight tickets
American Airlines
Jan 11
STL2:27 pmLambert-St Louis
8h 50m
1 stop
IDA10:17 pmIdaho Falls Fanning Field
Jan 15
IDA5:30 amIdaho Falls Fanning Field
7h 12m
1 stop
STL1:42 pmLambert-St Louis
American Airlines
Jan 8
ORD5:00 amChicago O'Hare Intl
8h 25m
1 stop
IDA12:25 pmIdaho Falls Fanning Field
Jan 12
IDA12:55 pmIdaho Falls Fanning Field
7h 19m
1 stop
ORD9:14 pmChicago O'Hare Intl
American Airlines
Jan 9
ORD5:00 amChicago O'Hare Intl
8h 25m
1 stop
IDA12:25 pmIdaho Falls Fanning Field
Jan 12
IDA12:55 pmIdaho Falls Fanning Field
7h 19m
1 stop
ORD9:14 pmChicago O'Hare Intl

See travel insights to Idaho Falls from

How to get the cheapest flight ticket from Illinois to Idaho Falls

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 Falls?

If you aren’t able to travel to Idaho Falls during the month of September, then flying in April is also cheap. Prices for this month can be found on momondo for an average of $393.

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

Our data shows that Sunday is the least expensive day to fly to Idaho Falls. Tickets to fly out on this day can be as low as $385. Be sure to avoid booking your departure on a Thursday as prices are generally higher than usual. According to our data, the average ticket price to Idaho Falls on Thursday is $673.

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

Our most recent data shows that the best time of day to fly to Idaho Falls is in the evening. Flights from Illinois to Idaho Falls during this time can be as low as $0. Try not to purchase tickets at noon because they tend to be around $586. Of course, these prices can vary depending on the time of year and what airport you fly to.

Can stopping save me money on Illinois to Idaho Falls flights?

You could potentially save up to 21% on your flight if you consider stops on a Illinois to Idaho Falls flight.

Cheap Illinois to Idaho Falls flight deals and tips

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

Best Price Found

$234

Fastest flight time

5h 18m

Direct flights

None

Airports in Idaho Falls

1 airport
The best one-way flight to Idaho Falls from Illinois in the past 72 hours is $234. The best round-trip flight deal from Illinois to Idaho Falls found on momondo in the last 72 hours is $314.
The fastest flight from Illinois to Idaho Falls takes 5h 18m
There are no direct flights from Illinois to Idaho Falls. Popular non-direct routes for this connection are Chicago O'Hare Intl Airport - Idaho Falls Fanning Field Airport, Lambert-St Louis Airport - Idaho Falls Fanning Field Airport and Moline Quad-City Airport - Idaho Falls Fanning Field Airport.
There is 1 airport near Idaho Falls: Idaho Falls Fanning Field (IDA)

  • When did momondo last update prices for flights from Illinois to Idaho Falls Fanning Field Airport?

    Prices for flights from Illinois to Idaho Falls Fanning Field Airport were last updated today.

  • How many operators does momondo search for flights from Illinois to Idaho Falls Fanning Field Airport?

  • How old do you have to be to fly from Illinois to Idaho Falls Fanning Field Airport?

    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 Illinois to Idaho Falls Fanning Field Airport.

  • What documentation or ID do you need to fly to Idaho Falls Fanning Field Airport?

    The travel and health documents required for your trip to Idaho Falls Fanning Field Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Idaho Falls Fanning Field Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.


Best airlines flying from Illinois to Idaho Falls

Compare and see reviews for airlines that fly from Illinois to Idaho Falls with momondo
Airline
Rating
Free Cancellation
Price
United AirlinesPriceFrom $363Free CancellationRating
7.4
9,172 reviews
Search United Airlines flights

Why use momondo?

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

Finding the right flight to Idaho Falls from Illinois 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 Idaho Falls quick and easy, saving you time and money.

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

Yes. All flights to Idaho Falls from Illinois on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

momondo provides multiple filters to help you find the best flight to Idaho Falls 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 Falls right now. Can momondo alert me if prices change?

Price alerts on flights to Idaho Falls from Illinois are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.


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