$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 6/1. 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.
1 adult
1 adult, Economy, 0 bags

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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Cheap Flights from Idaho Falls to Missouri

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
St. Louis
St. Louis1 stop$339
Kansas City
Kansas City1 stop$339
Springfield
Springfield1 stop$379
St. Louis
St. Louis1 stop$339
Kansas City
Kansas City1 stop$339
Springfield
Springfield1 stop$379

Book Cheap Idaho Falls to Missouri Plane Tickets

 
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.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Idaho Falls to Missouri

Fri, May 22 - Fri, May 29
Alaska Airlines Logo
4:03 pm - 4:37 pm
IDA
-
STL
23h 34m
1 stop
Alaska Airlines Logo
5:33 pm - 1:17 pm
STL
-
IDA
20h 44m
1 stop
$339Alaska Airlines
Thu, Aug 27 - Sun, Aug 30
Alaska Airlines Logo
4:14 pm - 12:38 pm
IDA
-
MCI
19h 24m
1 stop
Alaska Airlines Logo
2:46 pm - 1:06 pm
MCI
-
IDA
23h 20m
1 stop
$339Alaska Airlines
Thu, Aug 27 - Sun, Aug 30
Delta Logo
11:20 am - 5:23 pm
IDA
-
MCI
5h 03m
1 stop
Delta Logo
2:15 pm - 10:14 pm
MCI
-
IDA
8h 59m
2 stops
$344Delta
Mon, Jun 1 - Sun, Jun 7
Multiple Airlines Logo
4:43 pm - 7:23 pm
IDA
-
STL
25h 40m
2 stops
Multiple Airlines Logo
9:06 pm - 4:08 pm
STL
-
IDA
20h 02m
1 stop
$344Multiple Airlines
Mon, Jun 1 - Sat, Jun 6
Multiple Airlines Logo
4:43 pm - 6:06 pm
IDA
-
STL
24h 23m
1 stop
Multiple Airlines Logo
8:08 pm - 4:08 pm
STL
-
IDA
45h 00m
2 stops
$347Multiple Airlines
Wed, Jun 3 - Wed, Jun 10
United Airlines Logo
4:10 pm - 11:30 pm
IDA
-
MCI
6h 20m
1 stop
United Airlines Logo
6:00 am - 9:50 am
MCI
-
IDA
4h 50m
1 stop
$354United Airlines
Thu, Aug 27 - Sun, Aug 30
Delta Logo
11:20 am - 5:23 pm
IDA
-
MCI
5h 03m
1 stop
Delta Logo
8:00 am - 6:14 pm
MCI
-
IDA
11h 14m
2 stops
$359Delta
Sat, May 9 - Wed, May 13
United Airlines Logo
5:26 pm - 11:52 pm
IDA
-
MCI
5h 26m
1 stop
United Airlines Logo
8:49 am - 1:25 pm
MCI
-
IDA
5h 36m
1 stop
$369United Airlines
Wed, Sep 16 - Mon, Sep 21
American Airlines Logo
1:44 pm - 1:18 pm
IDA
-
SGF
22h 34m
1 stop
American Airlines Logo
7:43 pm - 12:12 pm
SGF
-
IDA
17h 29m
1 stop
$524American Airlines
Thu, Aug 27 - Sun, Aug 30
American Airlines Logo
1:41 pm - 10:45 pm
IDA
-
SGF
8h 04m
1 stop
American Airlines Logo
6:00 am - 11:30 am
SGF
-
IDA
6h 30m
1 stop
$543American Airlines
Booking Insights

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.

How much is a round-trip flight from Idaho Falls to Missouri?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Idaho Falls to Missouri departing in May.

What is the cheapest month to fly from Idaho Falls to Missouri?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Idaho Falls to Missouri, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Idaho Falls to Missouri is March, when tickets cost $150 (return) on average. On the other hand, the most expensive months are January and December, when the average cost of round-trip tickets is $440 and $380 respectively.

Good to know

Low seasonFebruary
Cheapest flight$164
Most popular time to fly and prices are also 19% 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.

Reviews of the top 4 airlines serving 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.
7.9
Alaska AirlinesOverall score based on 12309 reviews
8.1Boarding
7.8Comfort
8.5Crew
7.0Entertainment
7.0Food
Airline reviews

Flight was cancelled which destroyed the rest of our journey.

2.0 MediocreWilliam, Apr 2026
BOI - SEA
Read more Alaska Airlines reviews

Flight was cancelled which destroyed the rest of our journey.

The ground crew was very good. They communicated clearly and continued updating. The flight crew was fine. The flight crew on the March 20th flight from MCI to Portland was excellent.

WOuld have liked coffee or pretzels but other than that, crew and pilot and flight were great. Seat was great, too.

The overhead storage was already packed full when I boarded (I fly peasant class), but the attendant played some Tetris and made a spot for my small suitcase. Thanks!

Snacks for our toddler could have been better, front the standpoint of variety but that’s not any different from other airlines.

Everything ran like it should. Staff was professional. Looking forward to flying with them again.

I fell asleep and missed my flight and they rescheduled me no problem. Staff was professional and the plane was clean. I was very happy with my experience.

I enjoyed the Starlink access but didn't have much time to use it. It also kept dropping me so I gave up. The food was very good though when I asked for a different "dessert" they didn't have anything. Chocolate Brownie Cookies are not suitable for everyone...maybe children. The flight staff were amazing - at least in First Class! My first time ever! The trip from Boise to San Diego was FAR better than going to Boise.

From Las Vegas to Boise all went well. However, our flight was delayed in Boise and I missed my connecting flight from Seattle to Pasco. Moreover, the last flight to Pasco was full and I was booked on the 11:30 flight Sunday and given a hotel accommodation. However, I was scheduled to deliver the Sunday morning service at my church and needed to arrive no later than 10:00. Therefore, I booked a Delta flight scheduled to arrive in Pasco at 23:09. My piece of luggage checked in Las Vegas arrived in Pasco earlier today. I waited at the airport for over an hour last night to speak with an Alaska agent to no avail. I went back after church this morning in search of my piece of luggage and it could not be located. After waiting for 40 minutes to speak to the agent authorized to take my claim, he announced that he was closing the counter to assist on the flight line but not before providing me with a telephone number that would help me with filing my claim. Before I was able to make the call (due to other factors) I received a call from Alaska agent informing me that my luggage had just arrived and I am now waiting for it to be delivered. I deliberately took the more complicated route home to ensure that I would be home in plenty of time to prepare for myself for the Sunday service and accommodate my relatives’ needs. I believe the airport is undermanned given the number of flights coming in and going out. It was fiasco last night with three flights waiting for luggage and another flight landing within minutes. Today’s problems stemmed from a lack of cross training and a serious amount of cargo/baggage going out and too few people scheduled to cover.

It was ok. First time flying with them to Boise Won’t do again

The agent at check in and at the gate were less than thrilled to be at work. I'm not a fan of Kayak's placement on the plane. I got put in the middle seat and none of my preferences were used.

In ATL they have two sets of departure screens. Follow what is on your airline's departure board - the ATL Airport Authority departure board had completely incorrect details about the gate assignment for my flight, which would have made me miss boarding.

Flight was delayed it was hot while sitting on the plane, one engine was working on the plane until they had to do some jimmy rigging down the runway in order for the other engine to charge up. It was ridiculous

The flight was very good and the staff was very friendly and helpful!

The only thing I would say is we tried to get on a standby earlier flight, but with our fair we couldn’t. That seems senseless to leave with open seats..

Very easy to use and convenient, you can perform any action within the same portal

In a world of delays, Delta was on time both ways! Boarding was fast and efficient. Staff was friendly. AND wifi worked.

WiFi didn’t work. Flight delayed 3 hours Crew members were illiterate Seat lean back did not work.

Flight was delayed, we could have been notified earlier and in a consistent manner. App was not refreshing for another passenger to get the latest flight status. We could have stayed and waited at the hotel instead of waiting at the airport had we known the flight was going to delayed for more than 5 hours. The toilet is too tight, and needs to be cleaned more frequently (every hour). The entertainment screen froze, the touch screen not responding to touch. We were upgraded to comfort, it is more comfortable than regular economy seats.

This wasn't my experience with Delta. It was just the Pegasus flight. Seats were very hard. Staff was kinda rough. Not very nice. Charged me for snacks. For a 4 hour flight I would've expected more.

Booked through Kayak Business, had a seat in middle and towards back due to booking rate, not comfortable.

Was great in general, try to respect time and excuses when slight changes have been made, appreciated!

A long delay. Don't travel late in the day.

Super friendly with lots of drink options an entertainment. Friendly crew.

Standard flight with a drinks and a snack- overall very quick flight. The flight attendants were very strict, bordered on rude.

Outstanding service, efficient & friendly crew, flight was safe, comfortable & on time

Delayed - weather wasn't bad at either end. Also sat on tarmac in ORD.

They told us yesterday APR21st that they were cleaning the plane and we got delayed. After that they said they didn't had any crew for the flight so they cancelled the flight till next day.

The crew was great. Very friendly and responsive. The plane was old, small and tight. We ran out of overhead space and I had to check. Middle seat was particularly tight.

The flight crew on this leg of my trip was very friendly and pleasant. Every one of them was humorous, as well as helpful and accommodating. This group was BY FAR the best crew I’ve flown with. They deserve kudos.

I would like a refund for the extra cost the seat I paid for. An oversized person sat next to me and I couldn’t fit on my seat and had to move to another seat.

Boarding gate at LAX was too crowded—two gates next to one another

The flight was delayed about an hour for a maintenance specialist to approve the maintenance repair

This flight was delayed but it worked in my favor because my Atlanta to Dallas flight was delayed.

This was a hard flight. 3 delays out of OKC (1 on the Tarmac). Delay in Atlanta coming to Dallas. total travel time was the equivalent of driving from OKC to Atlanta.

Like: flights are on time, good boarding process Can improve: planes are old, improve entertainment and make space more comfortable

Had to wait for a gate for a long time, then waited on the run way for a long time before leaving. The actual flights part was good.

The airplane was an old model, the overhead didn’t have enough room for people’s items and made boarding and boarding disappointing and stressful. Crew allowed passengers to bring more than the permitted baggage sizes.

Flying in the United States with the major airlines has become so underwhelming. A 2-3hr flight in most other parts of the world with the major carriers of the area comes with newer, CLEANER aircraft and significantly better in flight service in terms of both staff attitude and a actual meal service.

On time departure and early arrival. Flight attendant very nice.

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

Information on your arrival and departure airports