Latest deals
Insights
FAQs
Reviews
Price Alerts

Cheap flights from Missouri to Idaho Falls from $185

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Missouri to Idaho Falls departing on 10/14. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from Missouri to Idaho Falls

Cheap round-trip flights

Multiple Airlines Logo
6:36 pm - 12:49 pmMCI-IDA
19h 13m1 stop
Multiple Airlines Logo
7:40 pm - 2:00 pmIDA-MCI
17h 20m1 stop
$321Multiple Airlines
Find Deal
Sun, Oct 19 - Mon, Oct 20
Delta Logo
6:40 am - 12:31 pmMCI-IDA
6h 51m1 stop
Delta Logo
6:45 pm - 12:25 amIDA-MCI
4h 40m1 stop
$350Delta
Find Deal
Thu, Feb 5 - Tue, Feb 10
United Airlines Logo
5:45 am - 9:56 amMCI-IDA
5h 11m1 stop
United Airlines Logo
10:51 am - 9:59 pmIDA-MCI
10h 08m2 stops
$351United Airlines
Find Deal
Sun, Feb 1 - Fri, Feb 6
United Airlines Logo
9:05 am - 1:30 pmMCI-IDA
5h 25m1 stop
United Airlines Logo
2:35 pm - 8:04 pmIDA-MCI
4h 29m1 stop
$371United Airlines
Find Deal
Sat, Feb 7 - Thu, Feb 12
Delta Logo
2:21 pm - 6:17 pmSTL-IDA
4h 56m1 stop
Delta Logo
1:15 pm - 9:18 pmIDA-STL
7h 03m1 stop
$388Delta
Find Deal
Mon, Nov 24 - Fri, Nov 28
Delta Logo
9:04 am - 6:17 pmSTL-IDA
10h 13m2 stops
Delta Logo
1:15 pm - 9:18 pmIDA-STL
7h 03m1 stop
$393Delta
Find Deal
Mon, Nov 24 - Fri, Nov 28
Alaska Airlines Logo
7:00 am - 3:38 pmMCI-IDA
9h 38m1 stop
Alaska Airlines Logo
6:00 am - 2:34 pmIDA-MCI
7h 34m1 stop
$435Alaska Airlines
Find Deal
Wed, Oct 8 - Sun, Oct 12
American Airlines Logo
5:20 am - 12:25 pmSTL-IDA
8h 05m1 stop
American Airlines Logo
6:44 am - 4:23 pmIDA-STL
8h 39m1 stop
$456American Airlines
Find Deal
Tue, Oct 7 - Sat, Oct 11
American Airlines Logo
7:16 am - 12:24 pmSTL-IDA
6h 08m1 stop
American Airlines Logo
7:10 am - 11:07 pmIDA-STL
14h 57m2 stops
$502American Airlines
Find Deal
Sat, Nov 1 - Tue, Nov 4
Alaska Airlines Logo
5:55 pm - 3:23 pmMCI-IDA
22h 28m2 stops
Alaska Airlines Logo
4:00 pm - 4:20 pmIDA-MCI
23h 20m2 stops
$533Alaska Airlines
Find Deal
Thu, Feb 5 - Tue, Feb 10

Delta flights from Missouri to Idaho Falls

Our best Delta deals on Missouri to Idaho Falls flight tickets
Delta
Feb 5
MCI6:40 amKansas City
6h 51m
1 stop
IDA12:31 pmIdaho Falls Fanning Field
Feb 10
IDA6:45 pmIdaho Falls Fanning Field
4h 40m
1 stop
MCI12:25 amKansas City
$350
Find similar
Delta
Nov 24
STL2:21 pmLambert-St Louis
4h 56m
1 stop
IDA6:17 pmIdaho Falls Fanning Field
Nov 28
IDA1:15 pmIdaho Falls Fanning Field
7h 03m
1 stop
STL9:18 pmLambert-St Louis
$388
Find similar
Delta
Nov 24
STL9:04 amLambert-St Louis
10h 13m
2 stops
IDA6:17 pmIdaho Falls Fanning Field
Nov 28
IDA1:15 pmIdaho Falls Fanning Field
7h 03m
1 stop
STL9:18 pmLambert-St Louis
$393
Find similar

United Airlines flights from Missouri to Idaho Falls

Our best United Airlines deals on Missouri to Idaho Falls flight tickets
United Airlines
Feb 1
MCI5:45 amKansas City
5h 11m
1 stop
IDA9:56 amIdaho Falls Fanning Field
Feb 6
IDA10:51 amIdaho Falls Fanning Field
10h 08m
2 stops
MCI9:59 pmKansas City
$351
Find similar
United Airlines
Feb 7
MCI9:05 amKansas City
5h 25m
1 stop
IDA1:30 pmIdaho Falls Fanning Field
Feb 12
IDA2:35 pmIdaho Falls Fanning Field
4h 29m
1 stop
MCI8:04 pmKansas City
$371
Find similar
United Airlines
Feb 5
MCI9:05 amKansas City
5h 25m
1 stop
IDA1:30 pmIdaho Falls Fanning Field
Feb 10
IDA10:51 amIdaho Falls Fanning Field
10h 08m
2 stops
MCI9:59 pmKansas City
$396
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Missouri to Idaho Falls that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated September 23, 2025.
Use the filters below to find and compare flights from Missouri to Idaho Falls that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Kansas CityIdaho Falls

MCI - IDA

MCIIDA

Kansas City

Sun 10/19

6:36 pm-12:49 pm

1 stop19h 13m

Idaho Falls Fanning Field

Mon 10/20

7:40 pm-2:00 pm

1 stop17h 20m

$321

Kansas CityIdaho Falls

MCI - IDA

MCIIDA

Kansas City

Thu 2/5

6:40 am-12:31 pm

1 stop6h 51m

Idaho Falls Fanning Field

Tue 2/10

6:45 pm-12:25 am

1 stop4h 40m

$350

Kansas CityIdaho Falls

MCI - IDA

MCIIDA

Kansas City

Sun 2/1

5:45 am-9:56 am

1 stop5h 11m

Idaho Falls Fanning Field

Fri 2/6

10:51 am-9:59 pm

2 stops10h 08m

$351

Kansas CityIdaho Falls

MCI - IDA

MCIIDA

Kansas City

Sat 2/7

9:05 am-1:30 pm

1 stop5h 25m

Idaho Falls Fanning Field

Thu 2/12

2:35 pm-8:04 pm

1 stop4h 29m

$371

St. LouisIdaho Falls

STL - IDA

STLIDA

Lambert-St Louis

Mon 11/24

2:21 pm-6:17 pm

1 stop4h 56m

Idaho Falls Fanning Field

Fri 11/28

1:15 pm-9:18 pm

1 stop7h 03m

$388

St. LouisIdaho Falls

STL - IDA

STLIDA

Lambert-St Louis

Mon 11/24

9:04 am-6:17 pm

2 stops10h 13m

Idaho Falls Fanning Field

Fri 11/28

1:15 pm-9:18 pm

1 stop7h 03m

$393

Kansas CityIdaho Falls

MCI - IDA

MCIIDA

Kansas City

Wed 10/8

7:00 am-3:38 pm

1 stop9h 38m

Idaho Falls Fanning Field

Sun 10/12

6:00 am-2:34 pm

1 stop7h 34m

$435

St. LouisIdaho Falls

STL - IDA

STLIDA

Lambert-St Louis

Tue 10/7

5:20 am-12:25 pm

1 stop8h 05m

Idaho Falls Fanning Field

Sat 10/11

6:44 am-4:23 pm

1 stop8h 39m

$456

St. LouisIdaho Falls

STL - IDA

STLIDA

Lambert-St Louis

Sat 11/1

7:16 am-12:24 pm

1 stop6h 08m

Idaho Falls Fanning Field

Tue 11/4

7:10 am-11:07 pm

2 stops14h 57m

$502

Kansas CityIdaho Falls

MCI - IDA

MCIIDA

Kansas City

Thu 2/5

5:55 pm-3:23 pm

2 stops22h 28m

Idaho Falls Fanning Field

Tue 2/10

4:00 pm-4:20 pm

2 stops23h 20m

$533

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

See travel insights to Idaho Falls from

How to get the cheapest flight ticket from Missouri 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 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 $605. Be sure to avoid booking your departure on a Monday as prices are generally higher than usual. According to our data, the average ticket price to Idaho Falls on Monday is $787.

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 at noon. Flights from Missouri to Idaho Falls during this time can be as low as $651. Try not to purchase tickets in the afternoon because they tend to be around $685. Of course, these prices can vary depending on the time of year and what airport you fly to.

Cheap Missouri to Idaho Falls flight deals and tips

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

Direct flights

None
There are no direct flights from Missouri to Idaho Falls. There are no popular flight routes from Missouri to Idaho Falls.
Search flight deals

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

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

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

  • How old do you have to be to fly from Missouri 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 Missouri 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.

Best airlines flying from Missouri to Idaho Falls

Compare and see reviews for airlines that fly from Missouri to Idaho Falls with momondo
Airline
Rating
Free Cancellation
Price
DeltaPriceFrom $192Free CancellationRating
7.9
7,974 reviews
Search Delta flights
United AirlinesPriceFrom $236Free CancellationRating
7.4
8,926 reviews
Search United Airlines flights

Traveling to a place near Idaho Falls?

Book flights to Idaho Falls if you plan to visit one of these locations
Rexburg

Why use momondo?

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

It is quick and easy to find Missouri to Idaho Falls 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 Falls that suits you.

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

Yes. momondo allows you to filter the results for Missouri to Idaho Falls flights to just show those with flexible booking policies.

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

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

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

If you are not ready to book a flight from Missouri to Idaho Falls now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Idaho Falls and let you know when they change.

An easier way to manage your Idaho Falls trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Thu 10/23
Thu 10/30
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to the United States