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Cheap flights from Philadelphia to Idaho Falls from $271

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Philadelphia to Idaho Falls departing on 4/8. 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

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Find the cheapest flights from Philadelphia to Idaho Falls

Cheap round-trip flights

Enter your travel dates to find the best prices.
American Airlines Logo
3:58 pm - 11:39 pm
PHL
-
IDA
9h 41m
1 stop
American Airlines Logo
1:43 pm - 12:11 am
IDA
-
PHL
8h 28m
1 stop
$349American Airlines
Tue, Apr 14 - Tue, Apr 21
American Airlines Logo
3:58 pm - 11:39 pm
PHL
-
IDA
9h 41m
1 stop
American Airlines Logo
7:48 am - 12:11 am
IDA
-
PHL
14h 23m
2 stops
$354American Airlines
Tue, Apr 14 - Tue, Apr 21
American Airlines Logo
12:52 pm - 9:22 pm
PHL
-
IDA
10h 30m
1 stop
American Airlines Logo
12:46 pm - 11:59 pm
IDA
-
PHL
9h 13m
1 stop
$359American Airlines
Sat, Aug 22 - Fri, Aug 28
American Airlines Logo
3:58 pm - 11:39 pm
PHL
-
IDA
9h 41m
1 stop
American Airlines Logo
7:48 am - 11:42 pm
IDA
-
PHL
13h 54m
2 stops
$364American Airlines
Wed, Apr 22 - Tue, Apr 28
American Airlines Logo
12:04 pm - 9:22 pm
PHL
-
IDA
11h 18m
2 stops
American Airlines Logo
12:46 pm - 11:59 pm
IDA
-
PHL
9h 13m
1 stop
$374American Airlines
Sat, Aug 22 - Fri, Aug 28
Delta Logo
2:59 pm - 10:40 pm
PHL
-
IDA
9h 41m
2 stops
Delta Logo
6:58 pm - 5:59 am
IDA
-
PHL
9h 01m
1 stop
$389Delta
Fri, Apr 24 - Mon, Apr 27
Delta Logo
2:59 pm - 10:40 pm
PHL
-
IDA
9h 41m
2 stops
Delta Logo
6:58 pm - 5:59 am
IDA
-
PHL
9h 01m
1 stop
$399Delta
Wed, Apr 22 - Tue, Apr 28
Delta Logo
7:15 am - 12:26 pm
PHL
-
IDA
7h 11m
1 stop
Delta Logo
6:58 pm - 5:59 am
IDA
-
PHL
9h 01m
1 stop
$404Delta
Wed, Apr 22 - Tue, Apr 28
Delta Logo
7:00 am - 2:27 pm
PHL
-
IDA
9h 27m
1 stop
Delta Logo
6:50 pm - 5:43 am
IDA
-
PHL
8h 53m
1 stop
$410Delta
Wed, Aug 19 - Tue, Aug 25
Delta Logo
11:45 am - 6:14 pm
PHL
-
IDA
8h 29m
2 stops
Delta Logo
6:50 pm - 5:43 am
IDA
-
PHL
8h 53m
1 stop
$415Delta
Sat, Aug 22 - Fri, Aug 28

Delta flights from Philadelphia to Idaho Falls

Our best Delta deals on Philadelphia to Idaho Falls flight tickets
Delta
Apr 24
PHL2:59 pmPhiladelphia
9h 41m
2 stops
IDA10:40 pmIdaho Falls Fanning Field
Apr 27
IDA6:58 pmIdaho Falls Fanning Field
9h 01m
1 stop
PHL5:59 amPhiladelphia
$389
Delta
Apr 22
PHL2:59 pmPhiladelphia
9h 41m
2 stops
IDA10:40 pmIdaho Falls Fanning Field
Apr 28
IDA6:58 pmIdaho Falls Fanning Field
9h 01m
1 stop
PHL5:59 amPhiladelphia
$399
Delta
Apr 22
PHL7:15 amPhiladelphia
7h 11m
1 stop
IDA12:26 pmIdaho Falls Fanning Field
Apr 28
IDA6:58 pmIdaho Falls Fanning Field
9h 01m
1 stop
PHL5:59 amPhiladelphia
$404

Alaska Airlines flights from Philadelphia to Idaho Falls

Our best Alaska Airlines deals on Philadelphia to Idaho Falls flight tickets
Alaska Airlines
Apr 3
PHL6:47 pmPhiladelphia
23h 32m
1 stop
IDA4:19 pmIdaho Falls Fanning Field
Apr 7
IDA4:59 pmIdaho Falls Fanning Field
11h 06m
1 stop
PHL6:05 amPhiladelphia
$544
Alaska Airlines
Sep 5
PHL12:40 pmPhiladelphia
11h 59m
2 stops
IDA10:39 pmIdaho Falls Fanning Field
Sep 11
IDA4:00 pmIdaho Falls Fanning Field
24h 22m
2 stops
PHL6:22 pmPhiladelphia
$580
Alaska Airlines
Apr 24
PHL5:12 pmPhiladelphia
24h 17m
2 stops
IDA3:29 pmIdaho Falls Fanning Field
Apr 27
IDA6:00 amIdaho Falls Fanning Field
15h 59m
2 stops
PHL11:59 pmPhiladelphia
$587

momondo Fare Finder

 
Customize your flight search to find flights from Philadelphia 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 20, 2026.
Use the filters below to find and compare flights from Philadelphia to Idaho Falls that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

PhiladelphiaIdaho Falls

PHL - IDA

PHLIDA

Philadelphia

Tue 4/14

3:58 pm-11:39 pm

1 stop9h 41m

Idaho Falls Fanning Field

Tue 4/21

1:43 pm-12:11 am

1 stop8h 28m

$349

PhiladelphiaIdaho Falls

PHL - IDA

PHLIDA

Philadelphia

Tue 4/14

3:58 pm-11:39 pm

1 stop9h 41m

Idaho Falls Fanning Field

Tue 4/21

7:48 am-12:11 am

2 stops14h 23m

$354

PhiladelphiaIdaho Falls

PHL - IDA

PHLIDA

Philadelphia

Sat 8/22

12:52 pm-9:22 pm

1 stop10h 30m

Idaho Falls Fanning Field

Fri 8/28

12:46 pm-11:59 pm

1 stop9h 13m

$359

PhiladelphiaIdaho Falls

PHL - IDA

PHLIDA

Philadelphia

Wed 4/22

3:58 pm-11:39 pm

1 stop9h 41m

Idaho Falls Fanning Field

Tue 4/28

7:48 am-11:42 pm

2 stops13h 54m

$364

PhiladelphiaIdaho Falls

PHL - IDA

PHLIDA

Philadelphia

Sat 8/22

12:04 pm-9:22 pm

2 stops11h 18m

Idaho Falls Fanning Field

Fri 8/28

12:46 pm-11:59 pm

1 stop9h 13m

$374

PhiladelphiaIdaho Falls

PHL - IDA

PHLIDA

Philadelphia

Fri 4/24

2:59 pm-10:40 pm

2 stops9h 41m

Idaho Falls Fanning Field

Mon 4/27

6:58 pm-5:59 am

1 stop9h 01m

$389

PhiladelphiaIdaho Falls

PHL - IDA

PHLIDA

Philadelphia

Wed 4/22

2:59 pm-10:40 pm

2 stops9h 41m

Idaho Falls Fanning Field

Tue 4/28

6:58 pm-5:59 am

1 stop9h 01m

$399
Quickest round-trip

PhiladelphiaIdaho Falls

PHL - IDA

PHLIDA

Philadelphia

Wed 4/22

7:15 am-12:26 pm

1 stop7h 11m

Idaho Falls Fanning Field

Tue 4/28

6:58 pm-5:59 am

1 stop9h 01m

$404

PhiladelphiaIdaho Falls

PHL - IDA

PHLIDA

Philadelphia

Wed 8/19

7:00 am-2:27 pm

1 stop9h 27m

Idaho Falls Fanning Field

Tue 8/25

6:50 pm-5:43 am

1 stop8h 53m

$410

PhiladelphiaIdaho Falls

PHL - IDA

PHLIDA

Philadelphia

Sat 8/22

11:45 am-6:14 pm

2 stops8h 29m

Idaho Falls Fanning Field

Fri 8/28

6:50 pm-5:43 am

1 stop8h 53m

$415

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 13 resultsSorted by cheapest first
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See travel insights to Idaho Falls from

How to get the cheapest flight ticket from Philadelphia 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 typical price of a round-trip flight between Philadelphia and Idaho Falls?

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 Philadelphia to Idaho Falls flights?

You could potentially save up to 56% on your flight if you consider stops on a Philadelphia to Idaho Falls flight.

When to book flights from Philadelphia to Idaho Falls

Are you open to changing your travel dates? Check out the ideal times to fly from Philadelphia to Idaho Falls according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Philadelphia to Idaho Falls (PHL to IDA) flight deals and tips

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

Fastest flight time

7h 27m

Direct flights

None
The fastest flight from Philadelphia to Idaho Falls takes 7h 27m
There are no direct flights from Philadelphia to Idaho Falls. There are no popular flight routes from Philadelphia to Idaho Falls.
Search flight deals

  • How far is Philadelphia to Idaho Falls Fanning Field by plane?

    There are 1900.6 mi between Philadelphia and Idaho Falls Fanning Field. 7h 27m is a normal flight duration for this route.

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

    Prices for flights from Philadelphia Airport to Idaho Falls Fanning Field Airport refresh daily.

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

  • How old do you have to be to fly from Philadelphia Airport to Idaho Falls Fanning Field Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Philadelphia Airport to Idaho Falls Fanning Field Airport.

  • What documentation or ID do you need to fly to Idaho Falls Fanning Field Airport?

    The travel and health documents you'll need for your trip to Idaho Falls Fanning Field Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Idaho Falls Fanning Field Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular airline from Philadelphia to Idaho Falls?

Best airlines flying from Philadelphia to Idaho Falls

Compare and see reviews for airlines that fly from Philadelphia to Idaho Falls with momondo
Airline
Rating
Free Cancellation
Price
DeltaPriceFrom $199Free CancellationRating
7.9
8,302 reviews
Search Delta flights
United AirlinesPriceFrom $379Free CancellationRating
7.4
9,450 reviews
Search United Airlines flights
American AirlinesPriceFrom $398Free CancellationRating
7.1
11,480 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 Philadelphia to Idaho Falls?

Finding the right flight to Idaho Falls from Philadelphia is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Idaho Falls quick and easy, saving you time and money.

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

Flights from Philadelphia to Idaho Falls with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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

Once you have performed a search for Philadelphia to Idaho Falls flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

If you are not ready to book a flight from Philadelphia to Idaho Falls now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Idaho Falls and let you know when they change.

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