Latest deals
Insights
FAQs
Reviews
Price Alerts

Cheap flights from Pennsylvania to Idaho Falls from $139

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 3/10. 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

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from Pennsylvania to Idaho Falls

Cheap round-trip flights

Enter your travel dates to find the best prices.
Delta Logo
4:05 pm - 10:21 pm
JFK
-
IDA
8h 16m
1 stop
Delta Logo
6:35 pm - 6:25 am
IDA
-
JFK
9h 50m
1 stop
$303Delta
Mon, Feb 23 - Tue, Mar 3
Delta Logo
4:05 pm - 10:21 pm
JFK
-
IDA
8h 16m
1 stop
Delta Logo
5:25 am - 7:14 pm
IDA
-
JFK
11h 49m
2 stops
$308Delta
Mon, Feb 23 - Tue, Mar 3
United Airlines Logo
6:30 am - 1:24 pm
IAD
-
IDA
8h 54m
1 stop
United Airlines Logo
2:31 pm - 12:37 am
IDA
-
IAD
8h 06m
1 stop
$359United Airlines
Tue, Jun 30 - Thu, Jul 16
Alaska Airlines Logo
7:18 am - 5:19 pm
EWR
-
IDA
12h 01m
1 stop
Alaska Airlines Logo
5:59 pm - 5:58 am
IDA
-
EWR
9h 59m
1 stop
$367Alaska Airlines
Sat, Mar 21 - Sat, Mar 28
Delta Logo
12:55 pm - 10:21 pm
JFK
-
IDA
11h 26m
2 stops
Delta Logo
5:25 am - 7:14 pm
IDA
-
JFK
11h 49m
2 stops
$368Delta
Mon, Feb 23 - Tue, Mar 3
United Airlines Logo
9:55 am - 3:39 pm
IAD
-
IDA
7h 44m
1 stop
United Airlines Logo
6:45 am - 3:46 pm
IDA
-
IAD
7h 01m
1 stop
$371United Airlines
Tue, Apr 7 - Tue, Apr 14
United Airlines Logo
7:25 am - 1:24 pm
LGA
-
IDA
7h 59m
1 stop
United Airlines Logo
2:31 pm - 11:25 pm
IDA
-
LGA
6h 54m
1 stop
$379United Airlines
Thu, Jun 11 - Tue, Jun 16
Alaska Airlines Logo
7:00 am - 5:19 pm
JFK
-
IDA
12h 19m
1 stop
Alaska Airlines Logo
5:59 pm - 7:12 am
IDA
-
JFK
11h 13m
1 stop
$388Alaska Airlines
Sat, Mar 21 - Sat, Mar 28
American Airlines Logo
6:03 am - 1:48 pm
EWR
-
IDA
9h 45m
1 stop
American Airlines Logo
2:18 pm - 11:47 pm
IDA
-
EWR
7h 29m
1 stop
$389American Airlines
Sat, Feb 21 - Sat, Feb 28
American Airlines Logo
6:00 am - 1:13 pm
PHL
-
IDA
9h 13m
1 stop
American Airlines Logo
12:46 pm - 11:59 pm
IDA
-
PHL
9h 13m
1 stop
$422American Airlines
Sat, Aug 1 - Wed, Aug 5

United Airlines flights from Pennsylvania to Idaho Falls

Our best United Airlines deals on Pennsylvania to Idaho Falls flight tickets
United Airlines
Jun 30
IAD6:30 amWashington, D.C. Dulles Intl
8h 54m
1 stop
IDA1:24 pmIdaho Falls Fanning Field
Jul 16
IDA2:31 pmIdaho Falls Fanning Field
8h 06m
1 stop
IAD12:37 amWashington, D.C. Dulles Intl
$359
United Airlines
Apr 7
IAD9:55 amWashington, D.C. Dulles Intl
7h 44m
1 stop
IDA3:39 pmIdaho Falls Fanning Field
Apr 14
IDA6:45 amIdaho Falls Fanning Field
7h 01m
1 stop
IAD3:46 pmWashington, D.C. Dulles Intl
$371
United Airlines
Jun 11
LGA7:25 amNew York LaGuardia
7h 59m
1 stop
IDA1:24 pmIdaho Falls Fanning Field
Jun 16
IDA2:31 pmIdaho Falls Fanning Field
6h 54m
1 stop
LGA11:25 pmNew York LaGuardia
$379

Alaska Airlines flights from Pennsylvania to Idaho Falls

Our best Alaska Airlines deals on Pennsylvania to Idaho Falls flight tickets
Alaska Airlines
Mar 21
EWR7:18 amNewark
12h 01m
1 stop
IDA5:19 pmIdaho Falls Fanning Field
Mar 28
IDA5:59 pmIdaho Falls Fanning Field
9h 59m
1 stop
EWR5:58 amNewark
$367
Alaska Airlines
Mar 21
JFK7:00 amNew York John F Kennedy Intl
12h 19m
1 stop
IDA5:19 pmIdaho Falls Fanning Field
Mar 28
IDA5:59 pmIdaho Falls Fanning Field
11h 13m
1 stop
JFK7:12 amNew York John F Kennedy Intl
$388
Alaska Airlines
Mar 19
PIT7:24 pmPittsburgh
29h 28m
1 stop
IDA10:52 pmIdaho Falls Fanning Field
Mar 23
IDA5:59 pmIdaho Falls Fanning Field
22h 29m
1 stop
PIT6:28 pmPittsburgh
$398

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 February 3, 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

New YorkIdaho Falls

JFK - IDA

JFKIDA

New York John F Kennedy Intl

Mon 2/23

4:05 pm-10:21 pm

1 stop8h 16m

Idaho Falls Fanning Field

Tue 3/3

6:35 pm-6:25 am

1 stop9h 50m

$303

New YorkIdaho Falls

JFK - IDA

JFKIDA

New York John F Kennedy Intl

Mon 2/23

4:05 pm-10:21 pm

1 stop8h 16m

Idaho Falls Fanning Field

Tue 3/3

5:25 am-7:14 pm

2 stops11h 49m

$308

Washington, D.C.Idaho Falls

IAD - IDA

IADIDA

Washington, D.C. Dulles Intl

Tue 6/30

6:30 am-1:24 pm

1 stop8h 54m

Idaho Falls Fanning Field

Thu 7/16

2:31 pm-12:37 am

1 stop8h 06m

$359

NewarkIdaho Falls

EWR - IDA

EWRIDA

Newark

Sat 3/21

7:18 am-5:19 pm

1 stop12h 01m

Idaho Falls Fanning Field

Sat 3/28

5:59 pm-5:58 am

1 stop9h 59m

$367

New YorkIdaho Falls

JFK - IDA

JFKIDA

New York John F Kennedy Intl

Mon 2/23

12:55 pm-10:21 pm

2 stops11h 26m

Idaho Falls Fanning Field

Tue 3/3

5:25 am-7:14 pm

2 stops11h 49m

$368

Washington, D.C.Idaho Falls

IAD - IDA

IADIDA

Washington, D.C. Dulles Intl

Tue 4/7

9:55 am-3:39 pm

1 stop7h 44m

Idaho Falls Fanning Field

Tue 4/14

6:45 am-3:46 pm

1 stop7h 01m

$371

New YorkIdaho Falls

LGA - IDA

LGAIDA

New York LaGuardia

Thu 6/11

7:25 am-1:24 pm

1 stop7h 59m

Idaho Falls Fanning Field

Tue 6/16

2:31 pm-11:25 pm

1 stop6h 54m

$379

New YorkIdaho Falls

JFK - IDA

JFKIDA

New York John F Kennedy Intl

Sat 3/21

7:00 am-5:19 pm

1 stop12h 19m

Idaho Falls Fanning Field

Sat 3/28

5:59 pm-7:12 am

1 stop11h 13m

$388

NewarkIdaho Falls

EWR - IDA

EWRIDA

Newark

Sat 2/21

6:03 am-1:48 pm

1 stop9h 45m

Idaho Falls Fanning Field

Sat 2/28

2:18 pm-11:47 pm

1 stop7h 29m

$389

PhiladelphiaIdaho Falls

PHL - IDA

PHLIDA

Philadelphia

Sat 8/1

6:00 am-1:13 pm

1 stop9h 13m

Idaho Falls Fanning Field

Wed 8/5

12:46 pm-11:59 pm

1 stop9h 13m

$422

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

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 August is also cheap. Prices for this month can be found on momondo for an average of $505.

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
8,138 reviews
Search Delta flights
United AirlinesPriceFrom $213Free CancellationRating
7.4
9,236 reviews
Search United Airlines flights
American AirlinesPriceFrom $398Free CancellationRating
7.2
11,217 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.

An easier way to manage your Idaho Falls trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Thu 3/5
Thu 3/12
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to the United States