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Cheap flights from Los Angeles 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 Los Angeles to Idaho Falls departing on 1/15. 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 Los Angeles to Idaho Falls

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
4:07 pm - 2:19 pm
LAX
-
IDA
21h 12m1 stop
Multiple Airlines Logo
1:34 pm - 8:36 am
IDA
-
LAX
20h 02m1 stop
$217Multiple Airlines
Thu, Jan 22 - Sun, Jan 25
Delta Logo
5:05 pm - 10:19 pm
LAX
-
IDA
4h 14m1 stop
Delta Logo
6:35 pm - 9:45 pm
IDA
-
LAX
4h 10m1 stop
$261Delta
Thu, Jan 8 - Mon, Jan 12
Alaska Airlines Logo
9:30 am - 6:18 pm
LAX
-
IDA
7h 48m1 stop
Alaska Airlines Logo
9:00 am - 3:42 pm
IDA
-
LAX
7h 42m1 stop
$284Alaska Airlines
Fri, Feb 6 - Mon, Feb 9
Delta Logo
5:05 pm - 10:19 pm
LAX
-
IDA
4h 14m1 stop
Delta Logo
6:35 pm - 9:45 pm
IDA
-
LAX
4h 10m1 stop
$300Delta
Fri, Jan 9 - Mon, Jan 12
Delta Logo
5:05 pm - 10:19 pm
LAX
-
IDA
4h 14m1 stop
Delta Logo
6:35 pm - 8:20 pm
IDA
-
LAX
26h 45m2 stops
$302Delta
Thu, Jan 8 - Mon, Jan 12
Alaska Airlines Logo
11:20 am - 6:18 pm
LAX
-
IDA
5h 58m1 stop
Alaska Airlines Logo
6:58 pm - 9:02 am
IDA
-
LAX
15h 04m2 stops
$312Alaska Airlines
Thu, Jan 8 - Sat, Jan 10
Alaska Airlines Logo
3:55 pm - 10:35 pm
LAX
-
IDA
5h 40m1 stop
Alaska Airlines Logo
4:00 pm - 8:27 pm
IDA
-
LAX
5h 27m1 stop
$318Alaska Airlines
Thu, Apr 16 - Mon, Apr 20
Alaska Airlines Logo
7:45 pm - 6:18 pm
LAX
-
IDA
21h 33m1 stop
Alaska Airlines Logo
6:58 pm - 9:02 am
IDA
-
LAX
15h 04m1 stop
$323Alaska Airlines
Fri, Jan 9 - Sun, Jan 11
Alaska Airlines Logo
11:20 am - 6:18 pm
LAX
-
IDA
5h 58m1 stop
Alaska Airlines Logo
6:58 pm - 1:15 pm
IDA
-
LAX
19h 17m2 stops
$327Alaska Airlines
Thu, Jan 22 - Mon, Jan 26
Alaska Airlines Logo
7:00 am - 6:18 pm
LAX
-
IDA
10h 18m1 stop
Alaska Airlines Logo
6:58 pm - 1:15 pm
IDA
-
LAX
19h 17m2 stops
$337Alaska Airlines
Thu, Jan 22 - Sun, Jan 25

United Airlines flights from Los Angeles to Idaho Falls

Our best United Airlines deals on Los Angeles to Idaho Falls flight tickets
United Airlines
Apr 16
LAX11:37 pmLos Angeles
12h 47m
2 stops
IDA1:24 pmIdaho Falls Fanning Field
Apr 20
IDA5:30 pmIdaho Falls Fanning Field
14h 49m
2 stops
LAX7:19 amLos Angeles
$509
Find similar
United Airlines
Dec 26
LAX5:00 amLos Angeles
7h 30m
1 stop
IDA1:30 pmIdaho Falls Fanning Field
Jan 1
IDA5:00 amIdaho Falls Fanning Field
5h 36m
1 stop
LAX9:36 amLos Angeles
$519
Find similar
United Airlines
Dec 20
LAX4:10 pmLos Angeles
5h 49m
1 stop
IDA10:59 pmIdaho Falls Fanning Field
Dec 23
IDA6:40 amIdaho Falls Fanning Field
6h 14m
1 stop
LAX11:54 amLos Angeles
$520
Find similar

Alaska Airlines flights from Los Angeles to Idaho Falls

Our best Alaska Airlines deals on Los Angeles to Idaho Falls flight tickets
Alaska Airlines
Feb 6
LAX9:30 amLos Angeles
7h 48m
1 stop
IDA6:18 pmIdaho Falls Fanning Field
Feb 9
IDA9:00 amIdaho Falls Fanning Field
7h 42m
1 stop
LAX3:42 pmLos Angeles
$284
Find similar
Alaska Airlines
Jan 8
LAX11:20 amLos Angeles
5h 58m
1 stop
IDA6:18 pmIdaho Falls Fanning Field
Jan 10
IDA6:58 pmIdaho Falls Fanning Field
15h 04m
2 stops
LAX9:02 amLos Angeles
$312
Find similar
Alaska Airlines
Apr 16
LAX3:55 pmLos Angeles
5h 40m
1 stop
IDA10:35 pmIdaho Falls Fanning Field
Apr 20
IDA4:00 pmIdaho Falls Fanning Field
5h 27m
1 stop
LAX8:27 pmLos Angeles
$318
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Los Angeles 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 December 10, 2025.
Use the filters below to find and compare flights from Los Angeles to Idaho Falls that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Los AngelesIdaho Falls

LAX - IDA

LAXIDA

Los Angeles

Thu 1/22

4:07 pm-2:19 pm

1 stop21h 12m

Idaho Falls Fanning Field

Sun 1/25

1:34 pm-8:36 am

1 stop20h 02m

$217

Los AngelesIdaho Falls

LAX - IDA

LAXIDA

Los Angeles

Thu 1/8

5:05 pm-10:19 pm

1 stop4h 14m

Idaho Falls Fanning Field

Mon 1/12

6:35 pm-9:45 pm

1 stop4h 10m

$261

Los AngelesIdaho Falls

LAX - IDA

LAXIDA

Los Angeles

Fri 2/6

9:30 am-6:18 pm

1 stop7h 48m

Idaho Falls Fanning Field

Mon 2/9

9:00 am-3:42 pm

1 stop7h 42m

$284

Los AngelesIdaho Falls

LAX - IDA

LAXIDA

Los Angeles

Fri 1/9

5:05 pm-10:19 pm

1 stop4h 14m

Idaho Falls Fanning Field

Mon 1/12

6:35 pm-9:45 pm

1 stop4h 10m

$300

Los AngelesIdaho Falls

LAX - IDA

LAXIDA

Los Angeles

Thu 1/8

5:05 pm-10:19 pm

1 stop4h 14m

Idaho Falls Fanning Field

Mon 1/12

6:35 pm-8:20 pm

2 stops26h 45m

$302

Los AngelesIdaho Falls

LAX - IDA

LAXIDA

Los Angeles

Thu 1/8

11:20 am-6:18 pm

1 stop5h 58m

Idaho Falls Fanning Field

Sat 1/10

6:58 pm-9:02 am

2 stops15h 04m

$312

Los AngelesIdaho Falls

LAX - IDA

LAXIDA

Los Angeles

Thu 4/16

3:55 pm-10:35 pm

1 stop5h 40m

Idaho Falls Fanning Field

Mon 4/20

4:00 pm-8:27 pm

1 stop5h 27m

$318

Los AngelesIdaho Falls

LAX - IDA

LAXIDA

Los Angeles

Fri 1/9

7:45 pm-6:18 pm

1 stop21h 33m

Idaho Falls Fanning Field

Sun 1/11

6:58 pm-9:02 am

1 stop15h 04m

$323

Los AngelesIdaho Falls

LAX - IDA

LAXIDA

Los Angeles

Thu 1/22

11:20 am-6:18 pm

1 stop5h 58m

Idaho Falls Fanning Field

Mon 1/26

6:58 pm-1:15 pm

2 stops19h 17m

$327

Los AngelesIdaho Falls

LAX - IDA

LAXIDA

Los Angeles

Thu 1/22

7:00 am-6:18 pm

1 stop10h 18m

Idaho Falls Fanning Field

Sun 1/25

6:58 pm-1:15 pm

2 stops19h 17m

$337

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Idaho Falls from

How to get the cheapest flight ticket from Los Angeles 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 month to fly to Idaho Falls?

If you aren’t able to travel to Idaho Falls during the month of April, then flying in February is also cheap. Prices for this month can be found on momondo for an average of $315.

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 $359. 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 $625.

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 Los Angeles to Idaho Falls during this time can be as low as $373. Try not to purchase tickets in the morning because they tend to be around $513. Of course, these prices can vary depending on the time of year and what airport you fly to.

How have Los Angeles to Idaho Falls flight prices changed over time?

When to book flights from Los Angeles to Idaho Falls

Are you open to changing your travel dates? Check out the ideal times to fly from Los Angeles to Idaho Falls according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Los Angeles to Idaho Falls (LAX to IDA) flight deals and tips

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

Fastest flight time

3h 44m

Direct flights

None
The fastest flight from Los Angeles to Idaho Falls takes 3h 44m
There are no direct flights from Los Angeles to Idaho Falls. There are no popular flight routes from Los Angeles to Idaho Falls.
Search flight deals

  • How far is Los Angeles to Idaho Falls Fanning Field by plane?

    There are 732.1 mi between Los Angeles and Idaho Falls Fanning Field. 3h 44m is a normal flight duration for this route.

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

    Prices for flights from Los Angeles Airport to Idaho Falls Fanning Field Airport refresh daily.

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

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

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Los Angeles Airport 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 airline from Los Angeles to Idaho Falls?

Best airlines flying from Los Angeles to Idaho Falls

Compare and see reviews for airlines that fly from Los Angeles to Idaho Falls with momondo
Airline
Rating
Free Cancellation
Price
Alaska AirlinesPriceFrom $219Free CancellationRating
8.0
11,423 reviews
Search Alaska Airlines flights
American AirlinesPriceFrom $254Free CancellationRating
7.2
11,048 reviews
Search American Airlines flights
DeltaPriceFrom $276Free CancellationRating
7.9
8,007 reviews
Search Delta flights
United AirlinesPriceFrom $300Free CancellationRating
7.4
9,092 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 Los Angeles to Idaho Falls?

It is quick and easy to find Los Angeles 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 Los Angeles to Idaho Falls with flexible booking policies on momondo?

Yes. All flights to Idaho Falls from Los Angeles on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

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

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

Price alerts on flights to Idaho Falls from Los Angeles are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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