Which airlines fly to Idaho Falls?

Based on our data, the most popular airlines that fly to Idaho Falls from United States are United Airlines, American Airlines, Delta and Alaska Airlines. There may also be other airline options depending on where in United States you’re flying from.

Alaska Airlines Flights to Idaho Falls

14 Alaska Airlines flights head to Idaho Falls on average each week. Most will be flying from Seattle/Tacoma Intl to Idaho Falls, the most popular route that Alaska Airlines operates to Idaho Falls. Prices vary based on when and where you fly from - the cheapest Alaska Airlines flight to Idaho Falls found in the past 3 days on momondo was $219, departing from Los Angeles. Alaska Airlines is the most popular choice on momondo for this route and has been scored 8.0/10 by 11,241 of our users.

Delta Flights to Idaho Falls

Delta flies to Idaho Falls 9 times per week usually, making it a popular airline to fly with, particularly when heading to Idaho Falls from Salt Lake City. Delta (rating: 7.9, 8,001 reviews) varies in price depending on when and where you want to fly to Idaho Falls from. The best Delta ticket price found on momondo to Idaho Falls was from Atlanta Hartsfield-Jackson ($149 round-trip).

How long does it take to fly to Idaho Falls?

If you’re flying from a popular airport in United States, such as Los Angeles or Miami, and flying into Idaho Falls, then you can expect flight times to average 2h 17m and 7h 17m, respectively.

$88 Cheap Flights to Idaho Falls in 2025/26

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Find the cheapest flights from the United States to Idaho Falls

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Cheap round-trip flights

Enter your travel dates to find the best prices.

3:35 pm - 6:18 pmSEA-IDA

1h 43mnonstop

6:58 pm - 8:00 pmIDA-SEA

2h 02mnonstop

$137Alaska Airlines

Find Deal

Tue, Jan 27 - Sat, Jan 31

8:16 pm - 10:59 pmSEA-IDA

1h 43mnonstop

6:58 pm - 8:00 pmIDA-SEA

2h 02mnonstop

$184Alaska Airlines

Find Deal

Mon, Feb 2 - Wed, Feb 4

8:00 am - 9:56 amDEN-IDA

1h 56mnonstop

4:19 pm - 6:13 pmIDA-DEN

1h 54mnonstop

$189United Airlines

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Wed, Jan 14 - Sun, Jan 18

7:55 pm - 10:38 pmSEA-IDA

1h 43mnonstop

4:00 pm - 4:59 pmIDA-SEA

1h 59mnonstop

$207Hawaiian Airlines

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Tue, Mar 10 - Wed, Mar 11

6:22 pm - 10:37 pmDEN-IDA

4h 15m1 stop

6:00 am - 9:29 amIDA-DEN

3h 29m1 stop

$209Delta

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Sat, Dec 6 - Sat, Dec 13

8:01 am - 9:48 amDEN-IDA

1h 47mnonstop

7:00 am - 8:57 amIDA-DEN

1h 57mnonstop

$219United Airlines

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Thu, Nov 20 - Mon, Nov 24

4:55 pm - 10:21 pmSEA-IDA

4h 26m1 stop

5:25 am - 9:17 amIDA-SEA

4h 52m1 stop

$228Delta

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Tue, Jan 27 - Sat, Jan 31

6:00 am - 1:27 pmDEN-IDA

7h 27m1 stop

1:58 pm - 9:57 pmIDA-DEN

7h 59m1 stop

$269American Airlines

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Wed, Dec 10 - Sun, Dec 14

8:28 pm - 10:34 pmPHX-IDA

2h 06mnonstop

7:10 am - 9:30 amIDA-PHX

2h 20mnonstop

$291American Airlines

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Tue, Nov 25 - Sat, Nov 29

7:14 am - 11:59 pmEWR-IDA

18h 45m1 stop

5:07 pm - 5:58 amIDA-EWR

10h 51m1 stop

$377Hawaiian Airlines

Find Deal

Thu, Dec 4 - Wed, Dec 10

Fly from

Route

Depart

Return

Price

SeattleIdaho Falls

SEA - IDA

SEAIDA

Seattle/Tacoma Intl

Tue 1/27

3:35 pm-6:18 pm

Nonstop1h 43m

Idaho Falls Fanning Field

Sat 1/31

6:58 pm-8:00 pm

Nonstop2h 02m

$137

SeattleIdaho Falls

SEA - IDA

SEAIDA

Seattle/Tacoma Intl

Mon 2/2

8:16 pm-10:59 pm

Nonstop1h 43m

Idaho Falls Fanning Field

Wed 2/4

6:58 pm-8:00 pm

Nonstop2h 02m

$184

DenverIdaho Falls

DEN - IDA

DENIDA

Denver Intl

Wed 1/14

8:00 am-9:56 am

Nonstop1h 56m

Idaho Falls Fanning Field

Sun 1/18

4:19 pm-6:13 pm

Nonstop1h 54m

$189

SeattleIdaho Falls

SEA - IDA

SEAIDA

Seattle/Tacoma Intl

Tue 3/10

7:55 pm-10:38 pm

Nonstop1h 43m

Idaho Falls Fanning Field

Wed 3/11

4:00 pm-4:59 pm

Nonstop1h 59m

$207

DenverIdaho Falls

DEN - IDA

DENIDA

Denver Intl

Sat 12/6

6:22 pm-10:37 pm

1 stop4h 15m

Idaho Falls Fanning Field

Sat 12/13

6:00 am-9:29 am

1 stop3h 29m

$209

DenverIdaho Falls

DEN - IDA

DENIDA

Denver Intl

Thu 11/20

8:01 am-9:48 am

Nonstop1h 47m

Idaho Falls Fanning Field

Mon 11/24

7:00 am-8:57 am

Nonstop1h 57m

$219

SeattleIdaho Falls

SEA - IDA

SEAIDA

Seattle/Tacoma Intl

Tue 1/27

4:55 pm-10:21 pm

1 stop4h 26m

Idaho Falls Fanning Field

Sat 1/31

5:25 am-9:17 am

1 stop4h 52m

$228

DenverIdaho Falls

DEN - IDA

DENIDA

Denver Intl

Wed 12/10

6:00 am-1:27 pm

1 stop7h 27m

Idaho Falls Fanning Field

Sun 12/14

1:58 pm-9:57 pm

1 stop7h 59m

$269

PhoenixIdaho Falls

PHX - IDA

PHXIDA

Phoenix Sky Harbor Intl

Tue 11/25

8:28 pm-10:34 pm

Nonstop2h 06m

Idaho Falls Fanning Field

Sat 11/29

7:10 am-9:30 am

Nonstop2h 20m

$291

NewarkIdaho Falls

EWR - IDA

EWRIDA

Newark

Thu 12/4

7:14 am-11:59 pm

1 stop18h 45m

Idaho Falls Fanning Field

Wed 12/10

5:07 pm-5:58 am

1 stop10h 51m

$377

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

Idaho Falls flights insights and trends

Explore insights for your Idaho Falls flight to craft the best travel plan

Prices

Other information

What is the absolute cheapest flight to Idaho Falls?

Users booking trips to Idaho Falls from Santa Ana, California found flights 50% cheaper than the average price of flights to Idaho Falls. To find the cheapest price to Idaho Falls from your area, use momondo’s Airport-to-Airport Pricing Tool.

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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.

Cheapest flights to Idaho Falls Fanning Field

Find the cheapest flights to Idaho Falls Fanning Field from your nearest city or airport

Find flights from Los Angeles to Idaho Falls

CHEAPEST MONTH TO FLY TO IDAHO FALLS FROM LOS ANGELES	April	29% cheaper	Flying from Los Angeles to Idaho Falls costs on average just $297 in April
MOST EXPENSIVE MONTH TO FLY TO IDAHO FALLS FROM LOS ANGELES	December	66% more expensive	It costs about $689 for flights to Idaho Falls from Los Angeles in December
MOST POPULAR MONTH TO FLY TO IDAHO FALLS FROM LOS ANGELES	March	400% more users visited	More momondo users searched in flights to Idaho Falls from Los Angeles in March than any other month

Cheap Idaho Falls flight deals and tips

Summary info about Idaho Falls flight prices, duration and airlines

Best One-Way Price	$88
Best Round-Trip Price	$137
Fastest flight time	1h 43m
Popular in	December

The best one-way flight price to Idaho Falls from United States in the last 72 hours is $88 (Phoenix Sky Harbor Intl to Idaho Falls Fanning Field).

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The best round-trip flight price to Idaho Falls from United States in the last 72 hours is $137 (Seattle/Tacoma Intl to Idaho Falls Fanning Field).

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The fastest flight to Idaho Falls from United States takes 1h 43m (Seattle/Tacoma Intl to Idaho Falls Fanning Field).

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December has the highest demand for flights to Idaho Falls, with a 2% price increase on average.

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Frequently asked questions about flying to Idaho Falls

When are the weather conditions best for skiing in Idaho Falls?

momondo users looking to go skiing in Idaho Falls find that January is more than likely the best time to hit the slopes. The lower temperatures in the area mixed with a higher chance of snow make mountains like Bogus Basin the perfect place for a vacation. If you are planning a ski trip to multiple mountains, Silver Mountain is a recommended attraction in the Idaho Falls area.

What is the cheapest month to fly to Idaho Falls?

If you aren’t able to travel to Idaho Falls during the month of November, then flying in January is also cheap. Prices for this month can be found on momondo for an average of $455.

Is there an alternative airport near Idaho Falls?

Finding an alternative and possibly cheaper destination airport near Idaho Falls is possible. If you are planning a flight to Idaho Falls, consider booking flights to Idaho Falls Fanning Field Airport (4 mi from Idaho Falls city center), Pocatello Airport (48 mi from Idaho Falls city center) or West Yellowstone Airport (96 mi from Idaho Falls city center).

Is there a cheaper alternative to flying into Idaho Falls?

Idaho Falls Fanning Field Airport has an average price of $280 per person and is typically the cheapest airport to fly into when visiting Idaho Falls. This average price does vary based on departure city. Try momondo’s Airport-to-Airport Pricing Tool to find the cheapest flight.

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

Prices for flights to Idaho Falls Fanning Field Airport are updated daily.

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

As of November 2025, there are 6 operators available to choose from for flights to Idaho Falls Fanning Field Airport.

How old do you have to be to fly 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 to Idaho Falls Fanning Field Airport.

What documentation or ID do you need to fly to Idaho Falls Fanning Field Airport?

The required travel and health documents for your Idaho Falls Fanning Field Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Idaho Falls Fanning Field Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

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Why use momondo?

Why should I use momondo to find a flight deal 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.

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

Flights 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 to Idaho Falls?

Once all potential 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.