Idaho Falls

$271+ 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 12/15. Fares are subject to change and may not be available on all flights or dates of travel.
LGA — IDA
Aug 18 — Aug 251
We work with more than 300 partners to bring you better travel deals

Find cheap flights from LaGuardia to Idaho Falls with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

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 August 13, 2025.

Round-trip from

$335
(American Airlines)

One-way from

$271
(United Airlines)

Popular in

December

Cheapest in

November

Average price

$786
From New York LaGuardia to Idaho Falls Fanning Field
One-way flight from New York LaGuardia to Idaho Falls Fanning Field
Highest demand for flights based on searches. 2% potential increase in price ($15 potential increase over avg. RT price).
Cheapest flight prices on average. 5% potential price decrease ($34 potential savings vs. average RT price).
Average for round-trip flights in August 2025

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 August 13, 2025.

This American Airlines deal was found by Cheapflights users on 8/11. 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.
Tue 9/307:15 amLGA - IDA
1 stop7h 09mAmerican Airlines
Tue 10/712:55 pmIDA - LGA
1 stop8h 41mAmerican Airlines
Deal found 8/11$335
This Mytrip deal was found by Cheapflights users on 8/11. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/265:55 amLGA - IDA
2 stops12h 10mMultiple Airlines
Mon 9/299:39 pmIDA - LGA
2 stops17h 51mMultiple Airlines
Deal found 8/11$370
This Kiwi.com deal was found by Cheapflights users on 8/12. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/2710:50 pmLGA - IDA
1 stop20h 16mMultiple Airlines
Sun 8/315:51 pmIDA - LGA
2 stops40h 09mMultiple Airlines
Deal found 8/12$393
This Mytrip deal was found by Cheapflights users on 8/11. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/195:55 amLGA - IDA
2 stops12h 10mMultiple Airlines
Mon 9/229:39 pmIDA - LGA
2 stops17h 51mMultiple Airlines
Deal found 8/11$395
This Delta deal was found by Cheapflights users on 8/11. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/302:59 pmLGA - IDA
2 stops9h 26mDelta
Tue 10/76:00 amIDA - LGA
2 stops9h 01mDelta
Deal found 8/11$415
This American Airlines deal was found by Cheapflights users on 8/10. 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.
Sat 8/301:55 pmLGA - IDA
1 stop9h 23mAmerican Airlines
Wed 9/312:54 pmIDA - LGA
1 stop6h 30mAmerican Airlines
Deal found 8/10$418
This United Airlines deal was found by Cheapflights users on 8/10. 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 8/3110:00 amLGA - IDA
1 stop9h 15mUnited Airlines
Wed 9/32:35 pmIDA - LGA
1 stop6h 49mUnited Airlines
Deal found 8/10$425
This United Airlines deal was found by Cheapflights users on 8/10. 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 8/316:00 amLGA - IDA
2 stops9h 30mUnited Airlines
Thu 9/42:35 pmIDA - LGA
1 stop6h 49mUnited Airlines
Deal found 8/10$430

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 August 13, 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

7:15 am-12:24 pm

1 stop7h 09m

Idaho Falls Fanning Field

Tue 10/7

12:55 pm-11:36 pm

1 stop8h 41m

$335

New YorkIdaho Falls

LGA - IDA

LGAIDA

New York LaGuardia

Fri 9/26

5:55 am-4:05 pm

2 stops12h 10m

Idaho Falls Fanning Field

Mon 9/29

9:39 pm-5:30 pm

2 stops17h 51m

$370

New YorkIdaho Falls

LGA - IDA

LGAIDA

New York LaGuardia

Wed 8/27

10:50 pm-5:06 pm

1 stop20h 16m

Idaho Falls Fanning Field

Sun 8/31

5:51 pm-12:00 pm

2 stops40h 09m

$393

New YorkIdaho Falls

LGA - IDA

LGAIDA

New York LaGuardia

Fri 9/19

5:55 am-4:05 pm

2 stops12h 10m

Idaho Falls Fanning Field

Mon 9/22

9:39 pm-5:30 pm

2 stops17h 51m

$395

New YorkIdaho Falls

LGA - IDA

LGAIDA

New York LaGuardia

Tue 9/30

2:59 pm-10:25 pm

2 stops9h 26m

Idaho Falls Fanning Field

Tue 10/7

6:00 am-5:01 pm

2 stops9h 01m

$415

New YorkIdaho Falls

LGA - IDA

LGAIDA

New York LaGuardia

Sat 8/30

1:55 pm-9:18 pm

1 stop9h 23m

Idaho Falls Fanning Field

Wed 9/3

12:54 pm-9:24 pm

1 stop6h 30m

$418

New YorkIdaho Falls

LGA - IDA

LGAIDA

New York LaGuardia

Sat 8/30

1:00 pm-9:18 pm

1 stop10h 18m

Idaho Falls Fanning Field

Fri 9/5

12:54 pm-9:24 pm

1 stop6h 30m

$418

New YorkIdaho Falls

LGA - IDA

LGAIDA

New York LaGuardia

Fri 9/26

3:00 pm-9:25 pm

1 stop8h 25m

Idaho Falls Fanning Field

Fri 10/3

12:54 pm-9:24 pm

1 stop6h 30m

$418

New YorkIdaho Falls

LGA - IDA

LGAIDA

New York LaGuardia

Mon 12/15

10:15 am-9:12 pm

2 stops12h 57m

$271

New YorkIdaho Falls

LGA - IDA

LGAIDA

New York LaGuardia

Tue 8/19

2:58 pm-9:18 pm

1 stop8h 20m

$296

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/11

Showing 1-10 of 12 results
1
2

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.

  • 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.