$164 Find Cheap Flights from Idaho Falls to Missouri

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Idaho Falls to Missouri departing on 6/7. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
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KAYAK searches hundreds of travel sites at once for deals on flights to Missouri

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Idaho Falls to Missouri, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Idaho Falls to Missouri, as well as popular online travel agencies
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Flights Deals

Best Missouri Flight Deals from Idaho Falls

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours

St. Louis
St. Louis1 stop$337
Kansas City
Kansas City1 stop$421
St. Louis
St. Louis1 stop$337
Kansas City
Kansas City1 stop$421

Cheap Flights from Idaho Falls to Missouri

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Idaho Falls to Missouri that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.

Recent round-trip flight deals from Idaho Falls to Missouri

Recommended round-trip deals departing in the coming months from the most popular airlines that fly from Idaho Falls to Missouri.
Discover the best prices for you by selecting your travel dates on KAYAK.
Delta Logo
6:50 pm - 12:59 amIDA-STL
5h 09m1 stop
Delta Logo
7:15 pm - 10:55 pmSTL-IDA
4h 40m1 stop
$337Delta
Find Deal
Sun, Jun 1 - Wed, Jun 11
Delta Logo
6:50 pm - 12:59 amIDA-STL
5h 09m1 stop
Delta Logo
2:15 pm - 10:55 pmSTL-IDA
9h 40m2 stops
$387Delta
Find Deal
Sun, Jun 1 - Wed, Jun 11
Delta Logo
6:50 pm - 12:59 amIDA-STL
5h 09m1 stop
Delta Logo
2:15 pm - 10:55 pmSTL-IDA
9h 40m2 stops
$418Delta
Find Deal
Sun, Jun 1 - Wed, Jun 11
United Airlines Logo
7:05 am - 12:33 pmIDA-MCI
4h 28m1 stop
United Airlines Logo
5:20 pm - 10:51 pmMCI-IDA
6h 31m1 stop
$421United Airlines
Find Deal
Mon, May 26 - Mon, Jun 2
Delta Logo
6:52 pm - 12:43 amIDA-STL
4h 51m1 stop
Delta Logo
7:15 am - 2:19 pmSTL-IDA
8h 04m1 stop
$441Delta
Find Deal
Tue, Jul 1 - Thu, Jul 10
United Airlines Logo
5:55 pm - 11:29 pmIDA-MCI
4h 34m1 stop
United Airlines Logo
5:20 pm - 10:51 pmMCI-IDA
6h 31m1 stop
$462United Airlines
Find Deal
Tue, Jun 17 - Fri, Jun 20
United Airlines Logo
10:55 am - 11:15 pmIDA-MCI
11h 20m2 stops
United Airlines Logo
5:20 pm - 10:51 pmMCI-IDA
6h 31m1 stop
$467United Airlines
Find Deal
Tue, Jun 17 - Fri, Jun 20
American Airlines Logo
7:00 am - 8:30 pmIDA-STL
12h 30m2 stops
American Airlines Logo
7:23 am - 9:35 pmSTL-IDA
15h 12m2 stops
$627American Airlines
Find Deal
Tue, Jul 1 - Thu, Jul 10
Alaska Airlines Logo
6:00 am - 2:36 pmIDA-MCI
7h 36m1 stop
Alaska Airlines Logo
7:01 pm - 3:40 pmMCI-IDA
21h 39m1 stop
$711Alaska Airlines
Find Deal
Thu, May 15 - Mon, May 19
Alaska Airlines Logo
4:03 pm - 4:56 pmIDA-MCI
23h 53m2 stops
Alaska Airlines Logo
5:49 pm - 10:39 pmMCI-IDA
29h 50m2 stops
$776Alaska Airlines
Find Deal
Tue, Jun 17 - Fri, Jun 20
Useful Info

KAYAK's insights & trends for Idaho Falls to Missouri flights

Get data-powered insights and trends into flights from Idaho Falls to Missouri to help you find the cheapest flights, the best time to fly and much more.

What’s the cheapest day of the week to fly from Idaho Falls to Missouri?

The average price of all round-trip flights from Idaho Falls to Missouri clicked on KAYAK for each day over the last 12 months.

When flying from Idaho Falls to Missouri, you should consider leaving on a Thursday and avoid Mondays if you are looking for the best rates. For your return to Idaho Falls, you’ll find the best rates on Tuesdays and the most expensive ones on Mondays.


Good to know

Low seasonMarch
High seasonMay
Cheapest flight$164
Best time to beat the crowds but there is an average 14% increase in price.
Most popular time to fly and prices are also 24% lower on average.
Flight from Idaho Falls to St. Louis

FAQs - booking Missouri flights

  • How does KAYAK find such low prices on flights from Idaho Falls to Missouri?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Idaho Falls to Missouri.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Idaho Falls to Missouri?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Idaho Falls to Missouri is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Idaho Falls to Missouri?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly from Idaho Falls to Missouri with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Idaho Falls to Missouri?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from Idaho Falls to Missouri up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • What is the cheapest time of day to fly to Missouri?

    The cheapest time of day to fly to Missouri is generally at night, when round-trip flights cost $548 on average. Morning departures are around 7% cheaper than evening flights, on average. The most expensive time of day to fly to Missouri is generally in the evening, which is peak travel time and where the average cost of a ticket is $704.

Top airlines flying from Idaho Falls to Missouri

 
See real verified KAYAK customer reviews for airlines flying from Idaho Falls to Missouri. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Idaho Falls to Missouri? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
DeltaOverall score based on 7934 reviews
7.9Comfort
7.3Food
8.5Crew
7.9Entertainment
8.2Boarding
Airline reviews

Delta is my preferred airline. I've traveled with them for years. On time in most cases, good communication, easy to use app. Most planes are pretty nice. I was on a CRJ 700/900 however, which was pretty badly aged inside and needed a refresh. No infotainment, unreliable wifi, best to download before boarding or bring a book. Food choices are really just snacks on this flight, nice variety but about what you'd expect. Great staff and prompt in departure and early arrival too. Overall quite satisfied.

8.0 ExcellentFredrick, Apr 2025GSO - DTW
Read more Delta reviews

Delta is my preferred airline. I've traveled with them for years. On time in most cases, good communication, easy to use app. Most planes are pretty nice. I was on a CRJ 700/900 however, which was pretty badly aged inside and needed a refresh. No infotainment, unreliable wifi, best to download before boarding or bring a book. Food choices are really just snacks on this flight, nice variety but about what you'd expect. Great staff and prompt in departure and early arrival too. Overall quite satisfied.

Crew was friendly Love the entertainment in the seat head rest.

Delta flight was on time, seats were comfortable, and crew was nice.

This had nothing to do with Delta… The flights were on time and flawless. The service was excellent. We purchased seats in (aisle/middle) comfort plus since this was a cross country flight. Unfortunately, the woman seated at the window was 300+ pounds and, as might be expected, covered up about a third of the middle seat also. there was absolutely nothing that Delta could have done about that… I just don’t know what the answer should be. If you purchase a seat, you should should be able to use the entire seat and not just the portion that someone else is not sitting/oozing in. Disappointing…there should be something that could be done….I'm just not sure what solution could be.

Delayed take-off. Very small plane so very scary with lots of bumps during the flight. Would never fly Delta on short flights in small 80 seaters plane again! Felt relieved when landed.

The worst part was I was NOT allowed in the lounge even though I was holding a first class ticket and have a premium American Express card. I have flown Business or First Class with many airlines. Delta is the ONLY one who does not extend this courtesy to anyone except people who hold the very expensive American Express card. As a result, I won’t fly Delta if I have any other choice.

A little bumpy ride . No food was being provided due the the turbulence. That was ok it was a short flight to my standards.

Simply outstanding. Their new lounge for Delta One customers is a cut above the rest.

The Dekta Rep that checked us in was great. She's very personable, pleasant, and can tell she enjoys her job.

The plane was old with small storage areas that had problems closing/latching and not enough storage for everyone, and worn, damaged seats. Service was great but feel a little unsafe on such well used planes.

A bit rush for transit. Food and entertainment are not available

Multiple delays and not straight answer from the United team

Stewardess spilled orange juice on my clothes/seat no help no apology just threw napkins at me to clean the mess up. Not Happy.

Smooth flight. Boarding was chaotic. Could not hear the gate agent over the intercom. People were lined up in the wrong lines. Groups one and two were told to board through line one and group 3 through line 2. All very confusing. Once in the air, the flight was smooth. There was no entertainment option on this aircraft, even though it was a larger aircraft.

The plane pushed back from the gate on time. However, it stopped on the ramp, and we waited for over 20 minutes before the aircraft pulled back to the gate. Apparently, something of importance had to be removed from the aircraft by the gate agent. I found this to be odd. The delay was not significant, but I felt that whatever was on the aircraft that had to be taken off, should’ve been done before we pushed back from the gate.

Electric plugs didn't work. Entertainment system wasn't working

The design of the light switch on the arm rest is ridiculous.

Smooth boarding process. Early departure, smooth flight, early arrival. The entertainment package has very good recent movie options. The flight crew were friendly and professional.

leg space better than expected. two washrooms for one plane isn't enough.

The gate attendant let me walk right by her with a bag too big for the overhead compartment

Everything you need to know for your flight from Idaho Falls to Missouri

Information on your arrival and departure airports

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