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Idaho Falls

$178+ Cheap flights from LaGuardia, NY (LGA) to Idaho Falls (IDA)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/14. Fares are subject to change and may not be available on all flights or dates of travel.
LGA — IDA
Oct 17 — Oct 241
Fri 10/17
Fri 10/24
1 adult, Economy
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Cheap flight deals from LaGuardia to Idaho Falls

Discover tips and strategies to find the most affordable flight options for your journey from LaGuardia (LGA) to Idaho Falls (IDA). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated September 17, 2025.

Round-trip from

$445
(United Airlines)

One-way from

$178
(American Airlines)

Popular in

December

Cheapest in

November

Average price

$958
From New York LaGuardia to Idaho Falls Fanning Field
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One-way flight from New York LaGuardia to Idaho Falls Fanning Field
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High demand for flights, 6% potential price rise
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Cheapest flight prices on average. 5% potential price decrease ($36 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find flight deals from LaGuardia to Idaho Falls

Cheapest flights from LaGuardia to Idaho Falls
Explore the most affordable flight options available from LaGuardia to Idaho Falls. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 17, 2025.

This United Airlines deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/307:00 amLGA - IDA
1 stop8h 33mUnited Airlines
Sat 10/410:50 amIDA - LGA
1 stop6h 58mUnited Airlines
Deal found 9/15$471
This United Airlines deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/128:00 amLGA - IDA
1 stop14h 52mUnited Airlines
Sat 10/1810:50 amIDA - LGA
1 stop8h 58mUnited Airlines
Deal found 9/15$590
This American Airlines deal was found by Cheapflights users on 9/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/265:45 amLGA - IDA
1 stop8h 39mAmerican Airlines
Mon 9/291:35 pmIDA - LGA
1 stop8h 00mAmerican Airlines
Deal found 9/16$621
This United Airlines deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/2412:30 pmLGA - IDA
1 stop6h 45mUnited Airlines
Mon 9/295:56 pmIDA - LGA
1 stop23h 52mUnited Airlines
Deal found 9/15$667

Cheapflights Fare Finder

 
Customize your flight search to find flights from LaGuardia 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, Cheapflights users made 2,558,603 searches. Data last updated September 17, 2025.
Use the filters below to find and compare flights from New York LaGuardia Airport to Idaho Falls that are best for you.

Fly from

LaGuardia

Fly to

Idaho Falls

Route

Depart

Return

Price

New YorkIdaho Falls

LGA - IDA

LGAIDA

New York LaGuardia

Tue 9/30

10:24 am-5:18 pm

2 stops8h 54m

Idaho Falls Fanning Field

Sat 10/4

9:41 am-11:44 pm

2 stops12h 03m

$481

New YorkIdaho Falls

LGA - IDA

LGAIDA

New York LaGuardia

Fri 9/26

5:45 am-12:24 pm

1 stop8h 39m

Idaho Falls Fanning Field

Mon 9/29

1:35 pm-11:35 pm

1 stop8h 00m

$621

New YorkIdaho Falls

LGA - IDA

LGAIDA

New York LaGuardia

Sun 10/12

6:25 am-5:15 pm

2 stops12h 50m

Idaho Falls Fanning Field

Sat 10/18

10:50 am-9:48 pm

1 stop8h 58m

$635

New YorkIdaho Falls

LGA - IDA

LGAIDA

New York LaGuardia

Wed 9/24

12:30 pm-5:15 pm

1 stop6h 45m

Idaho Falls Fanning Field

Mon 9/29

5:56 pm-7:48 pm

1 stop23h 52m

$667

New YorkIdaho Falls

LGA - IDA

LGAIDA

New York LaGuardia

Thu 10/9

6:50 pm-9:48 am

1 stop16h 58m

Idaho Falls Fanning Field

Mon 10/13

5:56 pm-5:29 pm

1 stop21h 33m

$710

New YorkIdaho Falls

LGA - IDA

LGAIDA

New York LaGuardia

Wed 9/24

10:59 pm-4:05 pm

3 stops43h 06m

$234

New YorkIdaho Falls

LGA - IDA

LGAIDA

New York LaGuardia

Tue 10/14

9:18 am-8:52 pm

2 stops13h 34m

$246

New YorkIdaho Falls

LGA - IDA

LGAIDA

New York LaGuardia

Fri 10/3

7:15 am-12:24 pm

1 stop7h 09m

$261

New YorkIdaho Falls

LGA - IDA

LGAIDA

New York LaGuardia

Wed 9/24

7:15 am-12:24 pm

1 stop7h 09m

$261

New YorkIdaho Falls

LGA - IDA

LGAIDA

New York LaGuardia

Wed 9/24

9:18 am-5:15 pm

2 stops9h 57m

$266

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/14

Showing 1-10 of 12 results
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Best time to book a flight from LaGuardia to Idaho Falls

Have a flexible travel schedule? Discover the best time to fly to Idaho Falls from LaGuardia with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from New York LaGuardia Airport to Idaho Falls

What is the cheapest month to book a flight from New York LaGuardia Airport to Idaho Falls?

Currently, October is the cheapest month in which you can book a flight from New York LaGuardia Airport to Idaho Falls (average of $380). Flying from New York LaGuardia Airport to Idaho Falls in December is currently the most expensive (average of $578). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Related info for your journey

Find useful and relevant information for your journey from LaGuardia to Idaho Falls. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Idaho Falls from New York LaGuardia?

    Idaho Falls Fanning Field (IDA) is the airport you will fly into if you book a flight from New York LaGuardia to Idaho Falls. You should not have trouble finding flights to Fanning Field from New York LaGuardia; the airport handles an average of 0 inbound flights from New York LaGuardia per day. You should also have plenty of airline options to choose from since 0 airlines have flights to the Idaho Falls airport from New York LaGuardia. It is only a 3.8 mi journey from Fanning Field (IDA) to Idaho Falls’s city center.

  • How long is the flight from New York LaGuardia Airport to Idaho Falls?

    There are many flights that can get you from New York LaGuardia Airport to Idaho Falls in 8h 39m. Fly via United Airlines or American Airlines to get the fastest option. The distance from New York LaGuardia Airport to Idaho Falls is about 1947 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • Can I find deals for flights from LaGuardia to Idaho Falls that include hotel bookings?

    Yes. In addition to deals on LaGuardia to Idaho Falls flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from LaGuardia to Idaho Falls?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from LaGuardia to Idaho Falls.

  • Can I find deals for business class flights from LaGuardia to Idaho Falls?

    Yes. Cheapflights offers flight deals from LaGuardia to Idaho Falls by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from New York LaGuardia Airport to Idaho Falls?

    Currently, October is the cheapest month in which you can book a flight from New York LaGuardia Airport to Idaho Falls (average of $380). Flying from New York LaGuardia Airport to Idaho Falls in December is currently the most expensive (average of $578). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Idaho Falls?

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

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