Cheap flights from Chicago to Idaho Falls from $124
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Chicago to Idaho Falls departing on 12/3. 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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Fly from
Fly to
Route
Depart
Return
ChicagoIdaho Falls
ORD Chicago O'Hare Intl - IDA Idaho Falls Fanning Field
ORDIDA
Chicago O'Hare Intl
Tue 1/26
5:00 am-1:12 pm
1 stop9h 12m
Idaho Falls Fanning Field
Tue 2/2
1:42 pm-9:12 pm
1 stop6h 30m
ChicagoIdaho Falls
ORD Chicago O'Hare Intl - IDA Idaho Falls Fanning Field
ORDIDA
Chicago O'Hare Intl
Tue 1/26
1:44 pm-11:40 pm
2 stops10h 56m
Idaho Falls Fanning Field
Tue 2/2
6:18 am-2:36 pm
1 stop7h 18m
ChicagoIdaho Falls
ORD Chicago O'Hare Intl - IDA Idaho Falls Fanning Field
ORDIDA
Chicago O'Hare Intl
Tue 1/26
7:10 am-6:14 pm
2 stops12h 04m
Idaho Falls Fanning Field
Tue 2/2
6:00 am-12:25 pm
1 stop5h 25m
ChicagoIdaho Falls
ORD Chicago O'Hare Intl - IDA Idaho Falls Fanning Field
ORDIDA
Chicago O'Hare Intl
Mon 10/19
3:30 pm-10:10 pm
2 stops7h 40m
Idaho Falls Fanning Field
Fri 10/23
6:00 am-11:55 am
1 stop4h 55m
ChicagoIdaho Falls
ORD Chicago O'Hare Intl - IDA Idaho Falls Fanning Field
ORDIDA
Chicago O'Hare Intl
Mon 10/19
3:30 pm-10:10 pm
2 stops7h 40m
Idaho Falls Fanning Field
Wed 10/28
1:05 pm-10:05 pm
1 stop8h 00m
ChicagoIdaho Falls
ORD Chicago O'Hare Intl - IDA Idaho Falls Fanning Field
ORDIDA
Chicago O'Hare Intl
Tue 12/8
1:43 pm-9:49 pm
1 stop9h 06m
Idaho Falls Fanning Field
Sun 12/13
6:51 am-4:09 pm
1 stop8h 18m
ChicagoIdaho Falls
ORD Chicago O'Hare Intl - IDA Idaho Falls Fanning Field
ORDIDA
Chicago O'Hare Intl
Tue 12/8
1:43 pm-11:02 pm
2 stops10h 19m
Idaho Falls Fanning Field
Sun 12/13
6:51 am-4:09 pm
1 stop8h 18m
ChicagoIdaho Falls
ORD Chicago O'Hare Intl - IDA Idaho Falls Fanning Field
ORDIDA
Chicago O'Hare Intl
Thu 12/24
4:30 pm-9:19 pm
1 stop5h 49m
Idaho Falls Fanning Field
Tue 12/29
2:37 pm-9:29 pm
1 stop5h 52m
ChicagoIdaho Falls
ORD Chicago O'Hare Intl - IDA Idaho Falls Fanning Field
ORDIDA
Chicago O'Hare Intl
Tue 12/15
7:00 am-1:37 pm
1 stop7h 37m
Idaho Falls Fanning Field
Sat 12/19
4:20 pm-10:42 pm
1 stop5h 22m
ChicagoIdaho Falls
ORD Chicago O'Hare Intl - IDA Idaho Falls Fanning Field
ORDIDA
Chicago O'Hare Intl
Fri 11/13
7:00 am-1:28 pm
1 stop7h 28m
Idaho Falls Fanning Field
Sun 11/15
5:30 pm-11:59 pm
1 stop5h 29m
See travel insights to Idaho Falls from
How to get the cheapest flight ticket from Chicago 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 March, then flying in May is also cheap. Prices for this month can be found on momondo for an average of $390.
What is the cheapest day to depart on your flight to Idaho Falls?
Our data shows that Tuesday is the least expensive day to fly to Idaho Falls. Tickets to fly out on this day can be as low as $409. Be sure to avoid booking your departure on a Friday as prices are generally higher than usual. According to our data, the average ticket price to Idaho Falls on Friday is $523.
What is the cheapest Chicago to Idaho Falls Fanning Field flight route?
Fly from Chicago O'Hare Intl to Idaho Falls Fanning Field for the best Chicago - Idaho Falls Fanning Field flight prices
What cabin class options are available on Chicago to Idaho Falls flights?
There is only 1 cabin class available to choose from on Chicago to Idaho Falls flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.
How many flights depart from Chicago to Idaho Falls on average per day?
As of October 2026, there are 1 flights per day flying from Chicago to Idaho Falls. The most common time of day flights depart is 10:00AM, with 100% of flights taking off at noon.
How many flights depart from Chicago to Idaho Falls on average per week?
As of October 2026, 7 flights take off from Chicago and land in Idaho Falls each week. The most common flight departure day for this route is Mon, with 14% of weekly flights taking off on this day.
When to book flights from Chicago to Idaho Falls
Cheap Chicago to Idaho Falls (CHI to IDA) flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Chicago to Idaho Falls
Frequently asked questions about flying from Chicago to Idaho Falls
How far is Chicago to Idaho Falls Fanning Field by plane?
Chicago and Idaho Falls Fanning Field are 1239.4 mi apart from one another. In terms of flight time, this usually takes a little over 3h 50m.
When did momondo last update prices for flights from Chicago to Idaho Falls Fanning Field Airport?
Prices for flights from Chicago to Idaho Falls Fanning Field Airport refresh daily.
How many operators does momondo search for flights from Chicago to Idaho Falls Fanning Field Airport?
The number of operators available for flights from Chicago to Idaho Falls Fanning Field Airport is 2 as of October 2026.
How old do you have to be to fly from Chicago to Idaho Falls Fanning Field Airport?
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 Chicago 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 you'll need for your trip to Idaho Falls Fanning Field Airport 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 Falls Fanning Field Airport. 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 Chicago to Idaho Falls?
momondo data reveals that the most frequently booked plane model on the route from Chicago to Idaho Falls is Canadair (Bombardier) Regional Jet 700, representing 84.62% of all bookings. The subsequent popular models are Embraer 175 (Enhanced Winglets) at 11.54% and Boeing 737-700 at 3.85%.
What is the most popular airline from Chicago to Idaho Falls?
momondo data reveals that the most frequently booked airline on the route from Chicago to Idaho Falls is American Airlines, representing 49% of all bookings. The subsequent popular airlines are United Airlines at 31% and Delta at 20%.
Best airlines flying from Chicago to Idaho Falls
Compare and see reviews for airlines that fly from Chicago to Idaho Falls with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $319 | Free Cancellation | Rating 7.4 10,322 reviews | |||
| PriceFrom $398 | Free Cancellation | Rating 7.0 12,146 reviews |
American Airlines Flights From Chicago to Idaho Falls
American Airlines is one of the most popular airlines flying from Chicago to Idaho Falls, operating 7 flights/week on average for this route. A good American Airlines flight deal for Chicago to Idaho Falls starts from $398 round-trip, up to an average price of $475. Our users have rated American Airlines at 7.0/10.
Traveling to a place near Idaho Falls?
Book flights to Idaho Falls if you plan to visit one of these locationsWhy use momondo?
Why should I use momondo to find a flight deal from Chicago to Idaho Falls?
To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Idaho Falls from Chicago.
Can I find flights from Chicago to Idaho Falls with flexible booking policies on momondo?
Flights from Chicago to Idaho Falls 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 Chicago to Idaho Falls?
Once all potential Chicago to Idaho Falls flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.
I’m not ready to book a flight from Chicago to Idaho Falls right now. Can momondo alert me if prices change?
Of course. momondo tracks the price of Chicago to Idaho Falls flights. All you need is a valid email address and we will do the rest; it is that quick and easy.