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Cheap flights from the United States to Idaho Falls from $108

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from the United States to Idaho Falls departing on 12/11. 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

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Find the cheapest flights from the United States to Idaho Falls

Recent round-trip flight deals from the United States to Idaho Falls

Enter your travel dates to find the best prices.
Alaska Airlines Logo
9:15 pm - 11:59 pmSEA-IDA
1h 44mnonstop
Alaska Airlines Logo
5:07 pm - 6:16 pmIDA-SEA
2h 09mnonstop
$167Alaska Airlines
Find Deal
Sat, Nov 22 - Wed, Dec 3
Alaska Airlines Logo
9:15 pm - 11:59 pmSEA-IDA
1h 44mnonstop
Alaska Airlines Logo
5:07 pm - 6:16 pmIDA-SEA
2h 09mnonstop
$177Alaska Airlines
Find Deal
Sun, Nov 23 - Thu, Dec 4
United Airlines Logo
8:00 am - 9:58 amDEN-IDA
1h 58mnonstop
United Airlines Logo
5:00 am - 7:03 amIDA-DEN
2h 03mnonstop
$189United Airlines
Find Deal
Sat, Dec 27 - Wed, Dec 31
United Airlines Logo
8:00 am - 9:58 amDEN-IDA
1h 58mnonstop
United Airlines Logo
4:05 pm - 5:59 pmIDA-DEN
1h 54mnonstop
$194United Airlines
Find Deal
Mon, Dec 29 - Mon, Jan 5
Delta Logo
7:05 am - 12:34 pmDEN-IDA
5h 29m1 stop
Delta Logo
6:00 am - 11:07 amIDA-DEN
5h 07m1 stop
$209Delta
Find Deal
Wed, Nov 19 - Sun, Nov 23
Delta Logo
6:20 pm - 10:19 pmDEN-IDA
3h 59m1 stop
Delta Logo
6:57 pm - 10:28 pmIDA-DEN
3h 31m1 stop
$214Delta
Find Deal
Wed, Nov 12 - Mon, Nov 17
Hawaiian Airlines Logo
7:55 pm - 10:38 pmSEA-IDA
1h 43mnonstop
Hawaiian Airlines Logo
8:00 am - 8:59 amIDA-SEA
1h 59mnonstop
$217Hawaiian Airlines
Find Deal
Mon, Mar 2 - Thu, Mar 5
Hawaiian Airlines Logo
6:45 am - 4:27 pmDEN-IDA
9h 42m1 stop
Hawaiian Airlines Logo
5:07 pm - 11:44 amIDA-DEN
18h 37m1 stop
$262Hawaiian Airlines
Find Deal
Wed, Dec 3 - Sat, Dec 6
American Airlines Logo
6:00 am - 1:27 pmDEN-IDA
7h 27m1 stop
American Airlines Logo
1:58 pm - 8:17 pmIDA-DEN
6h 19m1 stop
$271American Airlines
Find Deal
Fri, Dec 5 - Tue, Dec 9
American Airlines Logo
10:43 am - 3:46 pmDEN-IDA
5h 03m1 stop
American Airlines Logo
7:10 am - 3:15 pmIDA-DEN
8h 05m1 stop
$345American Airlines
Find Deal
Thu, Nov 27 - Mon, Dec 1

Alaska Airlines flights from United States to Idaho Falls

Our best Alaska Airlines deals on United States to Idaho Falls flight tickets
Alaska Airlines
Nov 22
SEA9:15 pmSeattle/Tacoma Intl
1h 44m
IDA11:59 pmIdaho Falls Fanning Field
Dec 3
IDA5:07 pmIdaho Falls Fanning Field
2h 09m
SEA6:16 pmSeattle/Tacoma Intl
$167
Find similar
Alaska Airlines
Nov 23
SEA9:15 pmSeattle/Tacoma Intl
1h 44m
IDA11:59 pmIdaho Falls Fanning Field
Dec 4
IDA5:07 pmIdaho Falls Fanning Field
2h 09m
SEA6:16 pmSeattle/Tacoma Intl
$177
Find similar
Alaska Airlines
Nov 22
SEA9:15 pmSeattle/Tacoma Intl
1h 44m
IDA11:59 pmIdaho Falls Fanning Field
Dec 2
IDA6:00 amIdaho Falls Fanning Field
2h 10m
SEA7:10 amSeattle/Tacoma Intl
$208
Find similar

Delta flights from United States to Idaho Falls

Our best Delta deals on United States to Idaho Falls flight tickets
Delta
Nov 19
DEN7:05 amDenver Intl
5h 29m
1 stop
IDA12:34 pmIdaho Falls Fanning Field
Nov 23
IDA6:00 amIdaho Falls Fanning Field
5h 07m
1 stop
DEN11:07 amDenver Intl
$209
Find similar
Delta
Nov 12
DEN6:20 pmDenver Intl
3h 59m
1 stop
IDA10:19 pmIdaho Falls Fanning Field
Nov 17
IDA6:57 pmIdaho Falls Fanning Field
3h 31m
1 stop
DEN10:28 pmDenver Intl
$214
Find similar
Delta
Feb 17
SEA4:55 pmSeattle/Tacoma Intl
4h 26m
1 stop
IDA10:21 pmIdaho Falls Fanning Field
Feb 25
IDA6:45 pmIdaho Falls Fanning Field
6h 26m
1 stop
SEA12:11 amSeattle/Tacoma Intl
$238
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from United States 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 October 28, 2025.
Use the filters below to find and compare flights from the United States to Idaho Falls that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

SeattleIdaho Falls

SEA - IDA

SEAIDA

Seattle/Tacoma Intl

Sat 11/22

9:15 pm-11:59 pm

Nonstop1h 44m

Idaho Falls Fanning Field

Wed 12/3

5:07 pm-6:16 pm

Nonstop2h 09m

$167

SeattleIdaho Falls

SEA - IDA

SEAIDA

Seattle/Tacoma Intl

Sun 11/23

9:15 pm-11:59 pm

Nonstop1h 44m

Idaho Falls Fanning Field

Thu 12/4

5:07 pm-6:16 pm

Nonstop2h 09m

$177

DenverIdaho Falls

DEN - IDA

DENIDA

Denver Intl

Sat 12/27

8:00 am-9:58 am

Nonstop1h 58m

Idaho Falls Fanning Field

Wed 12/31

5:00 am-7:03 am

Nonstop2h 03m

$189

DenverIdaho Falls

DEN - IDA

DENIDA

Denver Intl

Mon 12/29

8:00 am-9:58 am

Nonstop1h 58m

Idaho Falls Fanning Field

Mon 1/5

4:05 pm-5:59 pm

Nonstop1h 54m

$194

DenverIdaho Falls

DEN - IDA

DENIDA

Denver Intl

Wed 11/19

7:05 am-12:34 pm

1 stop5h 29m

Idaho Falls Fanning Field

Sun 11/23

6:00 am-11:07 am

1 stop5h 07m

$209

DenverIdaho Falls

DEN - IDA

DENIDA

Denver Intl

Wed 11/12

6:20 pm-10:19 pm

1 stop3h 59m

Idaho Falls Fanning Field

Mon 11/17

6:57 pm-10:28 pm

1 stop3h 31m

$214

SeattleIdaho Falls

SEA - IDA

SEAIDA

Seattle/Tacoma Intl

Mon 3/2

7:55 pm-10:38 pm

Nonstop1h 43m

Idaho Falls Fanning Field

Thu 3/5

8:00 am-8:59 am

Nonstop1h 59m

$217

DenverIdaho Falls

DEN - IDA

DENIDA

Denver Intl

Wed 12/3

6:45 am-4:27 pm

1 stop9h 42m

Idaho Falls Fanning Field

Sat 12/6

5:07 pm-11:44 am

1 stop18h 37m

$262

DenverIdaho Falls

DEN - IDA

DENIDA

Denver Intl

Fri 12/5

6:00 am-1:27 pm

1 stop7h 27m

Idaho Falls Fanning Field

Tue 12/9

1:58 pm-8:17 pm

1 stop6h 19m

$271

DenverIdaho Falls

DEN - IDA

DENIDA

Denver Intl

Thu 11/27

10:43 am-3:46 pm

1 stop5h 03m

Idaho Falls Fanning Field

Mon 12/1

7:10 am-3:15 pm

1 stop8h 05m

$345

Flights are sorted by cheapest round-trip flights first.

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See travel insights to Idaho Falls from

How to get the cheapest flight ticket from United States 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 $567. Be sure to avoid booking your departure on a Sunday as prices are generally higher than usual. According to our data, the average ticket price to Idaho Falls on Sunday is $877.

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 afternoon. Flights from United States to Idaho Falls during this time can be as low as $655. Try not to purchase tickets in the morning because they tend to be around $783. Of course, these prices can vary depending on the time of year and what airport you fly to.

What is the cheapest United States to Idaho Falls Fanning Field flight route?

Fly from Denver Intl to Idaho Falls Fanning Field for the best United States - Idaho Falls Fanning Field flight prices

What cabin class options are available on United States to Idaho Falls Fanning Field flights?

There are 3 cabin classes available to choose from on United States to Idaho Falls Fanning Field flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on United States to Idaho Falls flights?

No. A direct flight is the cheapest option for a flight between United States to Idaho Falls.

Cheap United States to Idaho Falls flight deals and tips

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

Best Price Found

$119

Fastest flight time

1h 43m

Direct flights

Every day

Airports in Idaho Falls

1 airport
The best one-way flight to Idaho Falls from United States in the past 72 hours is $119. The best round-trip flight deal from United States to Idaho Falls found on momondo in the last 72 hours is $170.
The fastest flight from United States to Idaho Falls takes 1h 43m
Direct flights go from United States to Idaho Falls every day.
There is 1 airport near Idaho Falls: Idaho Falls Fanning Field (IDA)
Search flight deals

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

    Prices for flights from United States to Idaho Falls Fanning Field Airport refresh daily.

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

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

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from United States 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.

  • What is the most popular plane model from United States to Idaho Falls?

Best airlines flying from United States to Idaho Falls

Compare and see reviews for airlines that fly from United States to Idaho Falls with momondo
Airline
Rating
Free Cancellation
Price
Allegiant AirPriceFrom $44Free CancellationRating
7.2
695 reviews
Search Allegiant Air flights
DeltaPriceFrom $149Free CancellationRating
7.9
7,995 reviews
Search Delta flights
United AirlinesPriceFrom $194Free CancellationRating
7.4
8,996 reviews
Search United Airlines flights
Alaska AirlinesPriceFrom $219Free CancellationRating
8.0
11,199 reviews
Search Alaska Airlines flights
American AirlinesPriceFrom $254Free CancellationRating
7.2
11,033 reviews
Search American 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 United States to Idaho Falls?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from United States to Idaho Falls. Millions of users trust and use momondo every year so you are in good hands.

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

momondo does allow users to show only those flights to Idaho Falls from United States which offer a flexible booking policy as well as other useful filters and features.

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

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from United States to Idaho Falls.

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

If you are not ready to book a flight from United States 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.

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