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Cheap flights from Pennsylvania to Idaho Falls from $176

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Pennsylvania to Idaho Falls departing on 4/9. 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
1 adult, Economy, 0 bags

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Find the cheapest flights from Pennsylvania to Idaho Falls

Cheap round-trip flights

Enter your travel dates to find the best prices.
American Airlines Logo
5:00 am - 11:32 am
DCA
-
IDA
8h 32m
1 stop
American Airlines Logo
2:20 pm - 11:58 pm
IDA
-
DCA
7h 38m
1 stop
$349American Airlines
Tue, Aug 11 - Tue, Aug 25
American Airlines Logo
7:20 am - 1:38 pm
LGA
-
IDA
8h 18m
1 stop
American Airlines Logo
12:44 pm - 9:28 pm
IDA
-
LGA
6h 44m
1 stop
$349American Airlines
Tue, Jun 2 - Tue, Jun 9
Delta Logo
5:35 pm - 10:14 pm
PIT
-
IDA
6h 39m
1 stop
Delta Logo
6:10 am - 4:47 pm
IDA
-
PIT
8h 37m
1 stop
$349Delta
Tue, Jul 28 - Thu, Aug 20
Delta Logo
4:09 pm - 10:40 pm
JFK
-
IDA
8h 31m
1 stop
Delta Logo
6:58 pm - 6:18 am
IDA
-
JFK
9h 20m
1 stop
$349Delta
Mon, Apr 13 - Fri, Apr 17
American Airlines Logo
6:59 am - 1:38 pm
EWR
-
IDA
8h 39m
1 stop
American Airlines Logo
12:44 pm - 11:30 pm
IDA
-
EWR
8h 46m
1 stop
$349American Airlines
Tue, Jun 2 - Tue, Jun 9
United Airlines Logo
3:55 pm - 9:03 pm
PHL
-
IDA
7h 08m
1 stop
United Airlines Logo
2:30 pm - 11:37 pm
IDA
-
PHL
7h 07m
1 stop
$369United Airlines
Sat, Sep 5 - Fri, Sep 11
United Airlines Logo
6:30 am - 1:25 pm
IAD
-
IDA
8h 55m
1 stop
United Airlines Logo
4:10 pm - 12:45 am
IDA
-
IAD
6h 35m
1 stop
$387United Airlines
Fri, May 29 - Mon, Jun 1
Alaska Airlines Logo
1:00 pm - 10:39 pm
JFK
-
IDA
11h 39m
1 stop
Alaska Airlines Logo
4:00 pm - 6:15 am
IDA
-
JFK
12h 15m
1 stop
$414Alaska Airlines
Sat, Sep 12 - Sat, Sep 19
Alaska Airlines Logo
9:00 am - 3:29 pm
IAD
-
IDA
8h 29m
1 stop
Alaska Airlines Logo
6:00 am - 6:20 pm
IDA
-
IAD
10h 20m
1 stop
$424Alaska Airlines
Sat, Apr 25 - Tue, May 12
Multiple Airlines Logo
2:59 pm - 4:08 pm
EWR
-
IDA
27h 09m
1 stop
Multiple Airlines Logo
6:39 pm - 10:40 am
IDA
-
EWR
14h 01m
2 stops
$480Multiple Airlines
Thu, Jun 11 - Fri, Jun 19

Alaska Airlines flights from Pennsylvania to Idaho Falls

Our best Alaska Airlines deals on Pennsylvania to Idaho Falls flight tickets
Alaska Airlines
Sep 12
JFK1:00 pmNew York John F Kennedy Intl
11h 39m
1 stop
IDA10:39 pmIdaho Falls Fanning Field
Sep 19
IDA4:00 pmIdaho Falls Fanning Field
12h 15m
1 stop
JFK6:15 amNew York John F Kennedy Intl
$414
Alaska Airlines
Apr 25
IAD9:00 amWashington, D.C. Dulles Intl
8h 29m
1 stop
IDA3:29 pmIdaho Falls Fanning Field
May 12
IDA6:00 amIdaho Falls Fanning Field
10h 20m
1 stop
IAD6:20 pmWashington, D.C. Dulles Intl
$424
Alaska Airlines
May 4
IAD6:47 pmWashington, D.C. Dulles Intl
29h 53m
2 stops
IDA10:40 pmIdaho Falls Fanning Field
May 6
IDA6:00 amIdaho Falls Fanning Field
10h 20m
1 stop
IAD6:20 pmWashington, D.C. Dulles Intl
$432

United Airlines flights from Pennsylvania to Idaho Falls

Our best United Airlines deals on Pennsylvania to Idaho Falls flight tickets
United Airlines
Sep 5
PHL3:55 pmPhiladelphia
7h 08m
1 stop
IDA9:03 pmIdaho Falls Fanning Field
Sep 11
IDA2:30 pmIdaho Falls Fanning Field
7h 07m
1 stop
PHL11:37 pmPhiladelphia
$369
United Airlines
May 29
IAD6:30 amWashington, D.C. Dulles Intl
8h 55m
1 stop
IDA1:25 pmIdaho Falls Fanning Field
Jun 1
IDA4:10 pmIdaho Falls Fanning Field
6h 35m
1 stop
IAD12:45 amWashington, D.C. Dulles Intl
$387
United Airlines
Jun 29
IAD6:30 amWashington, D.C. Dulles Intl
8h 55m
1 stop
IDA1:25 pmIdaho Falls Fanning Field
Jul 3
IDA2:30 pmIdaho Falls Fanning Field
8h 15m
1 stop
IAD12:45 amWashington, D.C. Dulles Intl
$419

momondo 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, momondo users made 832,500 searches. Data last updated March 22, 2026.
Use the filters below to find and compare flights from Pennsylvania to Idaho Falls that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Washington, D.C.Idaho Falls

DCA - IDA

DCAIDA

Washington, D.C. Reagan-National

Tue 8/11

5:00 am-11:32 am

1 stop8h 32m

Idaho Falls Fanning Field

Tue 8/25

2:20 pm-11:58 pm

1 stop7h 38m

$349

New YorkIdaho Falls

LGA - IDA

LGAIDA

New York LaGuardia

Tue 6/2

7:20 am-1:38 pm

1 stop8h 18m

Idaho Falls Fanning Field

Tue 6/9

12:44 pm-9:28 pm

1 stop6h 44m

$349

PittsburghIdaho Falls

PIT - IDA

PITIDA

Pittsburgh

Tue 7/28

5:35 pm-10:14 pm

1 stop6h 39m

Idaho Falls Fanning Field

Thu 8/20

6:10 am-4:47 pm

1 stop8h 37m

$349

New YorkIdaho Falls

JFK - IDA

JFKIDA

New York John F Kennedy Intl

Mon 4/13

4:09 pm-10:40 pm

1 stop8h 31m

Idaho Falls Fanning Field

Fri 4/17

6:58 pm-6:18 am

1 stop9h 20m

$349

NewarkIdaho Falls

EWR - IDA

EWRIDA

Newark

Tue 6/2

6:59 am-1:38 pm

1 stop8h 39m

Idaho Falls Fanning Field

Tue 6/9

12:44 pm-11:30 pm

1 stop8h 46m

$349
Quickest round-trip

PhiladelphiaIdaho Falls

PHL - IDA

PHLIDA

Philadelphia

Sat 9/5

3:55 pm-9:03 pm

1 stop7h 08m

Idaho Falls Fanning Field

Fri 9/11

2:30 pm-11:37 pm

1 stop7h 07m

$369

Washington, D.C.Idaho Falls

IAD - IDA

IADIDA

Washington, D.C. Dulles Intl

Fri 5/29

6:30 am-1:25 pm

1 stop8h 55m

Idaho Falls Fanning Field

Mon 6/1

4:10 pm-12:45 am

1 stop6h 35m

$387

New YorkIdaho Falls

JFK - IDA

JFKIDA

New York John F Kennedy Intl

Sat 9/12

1:00 pm-10:39 pm

1 stop11h 39m

Idaho Falls Fanning Field

Sat 9/19

4:00 pm-6:15 am

1 stop12h 15m

$414

Washington, D.C.Idaho Falls

IAD - IDA

IADIDA

Washington, D.C. Dulles Intl

Sat 4/25

9:00 am-3:29 pm

1 stop8h 29m

Idaho Falls Fanning Field

Tue 5/12

6:00 am-6:20 pm

1 stop10h 20m

$424

NewarkIdaho Falls

EWR - IDA

EWRIDA

Newark

Thu 6/11

2:59 pm-4:08 pm

1 stop27h 09m

Idaho Falls Fanning Field

Fri 6/19

6:39 pm-10:40 am

2 stops14h 01m

$480

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 Pennsylvania 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 May, then flying in March is also cheap. Prices for this month can be found on momondo for an average of $469.

Can stopping save me money on Pennsylvania to Idaho Falls flights?

You could potentially save up to 62% on your flight if you consider stops on a Pennsylvania to Idaho Falls flight.

Cheap Pennsylvania to Idaho Falls flight deals and tips

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

Fastest flight time

6h 39m

Direct flights

None
The fastest flight from Pennsylvania to Idaho Falls takes 6h 39m
There are no direct flights from Pennsylvania to Idaho Falls. There are no popular flight routes from Pennsylvania to Idaho Falls.
Search flight deals

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

    Prices for flights from Pennsylvania to Idaho Falls Fanning Field Airport were last updated today.

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

  • How old do you have to be to fly from Pennsylvania 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 from Pennsylvania 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.

Best airlines flying from Pennsylvania to Idaho Falls

Compare and see reviews for airlines that fly from Pennsylvania to Idaho Falls with momondo
Airline
Rating
Free Cancellation
Price
DeltaPriceFrom $193Free CancellationRating
7.9
8,314 reviews
Search Delta flights
United AirlinesPriceFrom $213Free CancellationRating
7.4
9,455 reviews
Search United Airlines flights
American AirlinesPriceFrom $398Free CancellationRating
7.1
11,489 reviews
Search American 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 Pennsylvania to Idaho Falls?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Pennsylvania to Idaho Falls for you.

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

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

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

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Pennsylvania to Idaho Falls.

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

Yes. momondo can track prices for Pennsylvania to Idaho Falls flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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