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Idaho Falls

$157+ Cheap flights from Pennsylvania 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 1/7. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — IDA
Jan 17 — Jan 241
Sat 1/17
Sat 1/24
1 adult, Economy
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Cheap flight deals from Pennsylvania to Idaho Falls

Cheapest flights from Pennsylvania to Idaho Falls
Explore the most affordable flight options available from Pennsylvania to Idaho Falls. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 18, 2025.

This Alaska Airlines deal was found by Cheapflights users on 12/16. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/244:29 pmJFK - IDA
1 stop9h 38mAlaska Airlines
Fri 1/96:58 pmIDA - JFK
2 stops34h 02mAlaska Airlines
Deal found 12/16$479
This Alaska Airlines deal was found by Cheapflights users on 12/16. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/244:29 pmJFK - IDA
1 stop9h 38mAlaska Airlines
Thu 1/89:00 amIDA - JFK
1 stop8h 28mAlaska Airlines
Deal found 12/16$520
This Alaska Airlines deal was found by Cheapflights users on 12/16. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/244:29 pmJFK - IDA
1 stop9h 38mAlaska Airlines
Sat 1/106:58 pmIDA - JFK
1 stop25h 54mAlaska Airlines
Deal found 12/16$531
This Delta deal was found by Cheapflights users on 12/16. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/255:45 pmJFK - IDA
1 stop7h 07mDelta
Thu 1/86:35 pmIDA - JFK
1 stop9h 21mDelta
Deal found 12/16$543
This Alaska Airlines deal was found by Cheapflights users on 12/16. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/244:29 pmJFK - IDA
1 stop9h 38mAlaska Airlines
Wed 1/76:58 pmIDA - JFK
2 stops34h 02mAlaska Airlines
Deal found 12/16$550
This United Airlines deal was found by Cheapflights users on 12/16. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/316:35 amPHL - IDA
2 stops8h 55mUnited Airlines
Mon 1/52:30 pmIDA - PHL
1 stop6h 42mUnited Airlines
Deal found 12/16$576
This Alaska Airlines deal was found by Cheapflights users on 12/16. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/244:29 pmJFK - IDA
1 stop9h 38mAlaska Airlines
Mon 1/56:00 amIDA - JFK
2 stops31h 29mAlaska Airlines
Deal found 12/16$577
This United Airlines deal was found by Cheapflights users on 12/16. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/245:00 pmEWR - IDA
1 stop7h 59mUnited Airlines
Thu 1/84:19 pmIDA - EWR
1 stop11h 18mUnited Airlines
Deal found 12/16$578
This United Airlines deal was found by Cheapflights users on 12/15. 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 12/246:00 amLGA - IDA
2 stops11h 22mUnited Airlines
Fri 1/910:51 amIDA - LGA
1 stop7h 03mUnited Airlines
Deal found 12/15$583
This United Airlines deal was found by Cheapflights users on 12/15. 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 12/246:00 amLGA - IDA
2 stops11h 22mUnited Airlines
Sat 1/1010:51 amIDA - LGA
2 stops10h 52mUnited Airlines
Deal found 12/15$588
This United Airlines deal was found by Cheapflights users on 12/16. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/245:00 pmEWR - IDA
1 stop7h 59mUnited Airlines
Wed 1/72:40 pmIDA - EWR
1 stop6h 50mUnited Airlines
Deal found 12/16$591
This Delta deal was found by Cheapflights users on 12/16. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/256:29 amEWR - IDA
1 stop7h 58mDelta
Fri 1/91:15 pmIDA - EWR
1 stop8h 44mDelta
Deal found 12/16$592

Find flight deals from Pennsylvania to Idaho Falls

Keep the following information in mind while searching for Pennsylvania to Idaho Falls flight deals. Data was last updated December 18, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$324
(Alaska Airlines)

One-way from

$157
(Kiwi.com)

Popular in

January

Cheapest in

February

Average price

$594
Provider with most accurate pricing for Philadelphia-Idaho Falls Fanning Field flight deals.
Search Deals
Provider most trusted by Cheapflights users for Philadelphia-Idaho Falls Fanning Field flights.
Search Deals
From Pennsylvania to Idaho Falls Fanning Field
Search Deals
One-way flight from Pennsylvania to Idaho Falls Fanning Field
Search Deals
Highest demand for flights based on searches. 5% potential increase in price ($39 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($37 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Pennsylvania 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 December 18, 2025.
Use the filters below to find and compare flights from Pennsylvania to Idaho Falls that are best for you.

Fly from

Pennsylvania

Fly to

Idaho Falls

Route

Depart

Return

Price

Washington, D.C.Idaho Falls

DCA - IDA

DCAIDA

Washington, D.C. Reagan-National

Sat 1/24

8:00 am-6:18 pm

1 stop12h 18m

Idaho Falls Fanning Field

Wed 1/28

9:00 am-9:59 pm

1 stop10h 59m

$324

Washington, D.C.Idaho Falls

IAD - IDA

IADIDA

Washington, D.C. Dulles Intl

Sat 1/24

6:04 pm-10:59 pm

1 stop30h 55m

Idaho Falls Fanning Field

Wed 1/28

6:58 pm-4:26 pm

1 stop19h 28m

$354

New YorkIdaho Falls

LGA - IDA

LGAIDA

New York LaGuardia

Fri 1/30

7:15 am-1:30 pm

1 stop8h 15m

Idaho Falls Fanning Field

Mon 2/2

2:40 pm-11:27 pm

1 stop6h 47m

$355

New YorkIdaho Falls

LGA - IDA

LGAIDA

New York LaGuardia

Thu 1/29

6:00 am-1:37 pm

1 stop9h 37m

Idaho Falls Fanning Field

Mon 2/2

2:07 pm-11:34 pm

1 stop7h 27m

$355

New YorkIdaho Falls

JFK - IDA

JFKIDA

New York John F Kennedy Intl

Fri 1/9

4:15 pm-10:19 pm

1 stop8h 04m

Idaho Falls Fanning Field

Fri 1/16

6:35 pm-6:25 am

1 stop9h 50m

$355

New YorkIdaho Falls

JFK - IDA

JFKIDA

New York John F Kennedy Intl

Fri 1/9

4:15 pm-10:19 pm

1 stop8h 04m

Idaho Falls Fanning Field

Thu 1/22

6:35 pm-5:56 am

1 stop9h 21m

$355

New YorkIdaho Falls

JFK - IDA

JFKIDA

New York John F Kennedy Intl

Fri 1/23

7:00 am-6:18 pm

1 stop13h 18m

Idaho Falls Fanning Field

Sun 1/25

6:58 pm-3:23 pm

1 stop18h 25m

$355

Washington, D.C.Idaho Falls

DCA - IDA

DCAIDA

Washington, D.C. Reagan-National

Sun 1/18

6:30 am-1:37 pm

1 stop9h 07m

Idaho Falls Fanning Field

Wed 3/4

2:02 pm-11:00 pm

1 stop6h 58m

$365

Washington, D.C.Idaho Falls

IAD - IDA

IADIDA

Washington, D.C. Dulles Intl

Thu 1/22

6:04 pm-10:59 pm

1 stop30h 55m

Idaho Falls Fanning Field

Mon 1/26

6:58 pm-4:26 pm

1 stop19h 28m

$365

PittsburghIdaho Falls

PIT - IDA

PITIDA

Pittsburgh

Fri 2/6

7:00 am-10:59 pm

1 stop17h 59m

Idaho Falls Fanning Field

Sun 2/8

9:00 am-6:46 pm

1 stop7h 46m

$373

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/16

Showing 1-10 of 60 results
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Best time to book a flight from Pennsylvania to Idaho Falls

Have a flexible travel schedule? Discover the best time to fly to Idaho Falls from Pennsylvania 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 Pennsylvania to Idaho Falls

What is the cheapest month to book a flight from Pennsylvania to Idaho Falls?

Currently, April is the cheapest month in which you can book a flight from Pennsylvania to Idaho Falls (average of $200). Flying from Pennsylvania to Idaho Falls in June is currently the most expensive (average of $427). 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 Pennsylvania 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 Pennsylvania?

    If you book a flight to Idaho Falls from Pennsylvania, you will be flying to Fanning Field, which is the city’s only airport. Idaho Falls Fanning Field (IDA) is located 3.8 mi from the center of Idaho Falls.

  • How long is the flight from Pennsylvania to Idaho Falls?

    Departing from Pennsylvania to Idaho Falls will take you 8h 15m. Pennsylvania and Idaho Falls are separated by a distance of 1947 mi. This flight may include one or multiple stops.

  • What are the most popular routes from Pennsylvania to Idaho Falls?

    While some choose either New York LaGuardia - Idaho Falls Fanning Field or Newark - Idaho Falls Fanning Field, New York John F Kennedy Intl - Idaho Falls Fanning Field is the most popular route from Pennsylvania to Idaho Falls.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Pennsylvania 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 Pennsylvania to Idaho Falls?

    Currently, April is the cheapest month in which you can book a flight from Pennsylvania to Idaho Falls (average of $200). Flying from Pennsylvania to Idaho Falls in June is currently the most expensive (average of $427). 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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Alternative routes for Pennsylvania to Idaho Falls

See prices for flight routes from nearby airports that may be better suited for you.
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Top 3 airlines flying from Pennsylvania to Idaho Falls

Discover the top 3 airlines that operate flights from Pennsylvania to Idaho Falls. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated December 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$223Average$458FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$248Average$616FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$354Average$589FlexibilityNo cancel feeOn-time71%

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