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Cheap flights from Philadelphia to Idaho Falls from $180

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 9/10. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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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.
Delta Logo
11:28 am - 6:14 pm
PHL
-
IDA
8h 46m
2 stops
Delta Logo
6:54 pm - 6:10 am
IDA
-
PHL
9h 16m
1 stop
$354Delta
Thu, May 28 - Mon, Jun 1
American Airlines Logo
5:30 pm - 11:39 pm
PHL
-
IDA
8h 09m
1 stop
American Airlines Logo
12:44 pm - 10:05 pm
IDA
-
PHL
7h 21m
1 stop
$399American Airlines
Tue, May 19 - Sat, May 23
American Airlines Logo
11:50 am - 11:39 pm
PHL
-
IDA
13h 49m
2 stops
American Airlines Logo
2:08 pm - 12:36 am
IDA
-
PHL
8h 28m
1 stop
$404American Airlines
Tue, May 19 - Sat, May 23
Delta Logo
11:36 am - 6:18 pm
PHL
-
IDA
8h 42m
2 stops
Delta Logo
7:00 pm - 8:41 am
IDA
-
PHL
11h 41m
2 stops
$409Delta
Fri, Jul 10 - Wed, Jul 15
Alaska Airlines Logo
7:00 am - 3:26 pm
PHL
-
IDA
10h 26m
1 stop
Alaska Airlines Logo
6:00 am - 6:16 pm
IDA
-
PHL
10h 16m
1 stop
$429Alaska Airlines
Tue, May 19 - Sat, May 23
Multiple Airlines Logo
11:06 am - 4:00 pm
PHL
-
IDA
30h 54m
1 stop
Multiple Airlines Logo
10:54 pm - 7:03 pm
IDA
-
PHL
18h 09m
2 stops
$431Multiple Airlines
Sun, Aug 2 - Mon, Aug 17
Delta Logo
7:25 am - 2:34 pm
PHL
-
IDA
9h 09m
1 stop
Delta Logo
6:54 pm - 6:10 am
IDA
-
PHL
9h 16m
1 stop
$434Delta
Thu, May 28 - Mon, Jun 1
Delta Logo
11:36 am - 6:18 pm
PHL
-
IDA
8h 42m
2 stops
Delta Logo
7:00 pm - 6:15 am
IDA
-
PHL
9h 15m
1 stop
$438Delta
Fri, Jul 10 - Mon, Jul 20
Delta Logo
11:36 am - 6:18 pm
PHL
-
IDA
8h 42m
2 stops
Delta Logo
7:00 pm - 8:41 am
IDA
-
PHL
11h 41m
2 stops
$443Delta
Fri, Jul 10 - Wed, Jul 22
Multiple Airlines Logo
11:06 am - 4:00 pm
PHL
-
IDA
30h 54m
1 stop
Multiple Airlines Logo
10:54 pm - 7:20 pm
IDA
-
PHL
18h 26m
2 stops
$445Multiple Airlines
Sun, Aug 2 - Fri, Aug 14

Alaska Airlines flights from Philadelphia to Idaho Falls

Our best Alaska Airlines deals on Philadelphia to Idaho Falls flight tickets
Alaska Airlines
Sep 13
PHL4:44 pmPhiladelphia
22h 22m
1 stop
IDA1:06 pmIdaho Falls Fanning Field
Sep 25
IDA4:14 pmIdaho Falls Fanning Field
21h 30m
1 stop
PHL3:44 pmPhiladelphia
$349
Alaska Airlines
May 19
PHL7:00 amPhiladelphia
10h 26m
1 stop
IDA3:26 pmIdaho Falls Fanning Field
May 23
IDA6:00 amIdaho Falls Fanning Field
10h 16m
1 stop
PHL6:16 pmPhiladelphia
$429
Alaska Airlines
Aug 22
PHL4:44 pmPhiladelphia
22h 22m
1 stop
IDA1:06 pmIdaho Falls Fanning Field
Aug 28
IDA4:14 pmIdaho Falls Fanning Field
21h 30m
1 stop
PHL3:44 pmPhiladelphia
$449

Delta flights from Philadelphia to Idaho Falls

Our best Delta deals on Philadelphia to Idaho Falls flight tickets
Delta
May 28
PHL11:28 amPhiladelphia
8h 46m
2 stops
IDA6:14 pmIdaho Falls Fanning Field
Jun 1
IDA6:54 pmIdaho Falls Fanning Field
9h 16m
1 stop
PHL6:10 amPhiladelphia
$354
Delta
Aug 21
PHL3:10 pmPhiladelphia
9h 04m
2 stops
IDA10:14 pmIdaho Falls Fanning Field
Sep 2
IDA6:50 pmIdaho Falls Fanning Field
8h 53m
1 stop
PHL5:43 amPhiladelphia
$379
Delta
Jul 10
PHL11:36 amPhiladelphia
8h 42m
2 stops
IDA6:18 pmIdaho Falls Fanning Field
Jul 15
IDA7:00 pmIdaho Falls Fanning Field
11h 41m
2 stops
PHL8:41 amPhiladelphia
$409

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 May 5, 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

Thu 5/28

11:28 am-6:14 pm

2 stops8h 46m

Idaho Falls Fanning Field

Mon 6/1

6:54 pm-6:10 am

1 stop9h 16m

$354
Quickest round-trip

PhiladelphiaIdaho Falls

PHL - IDA

PHLIDA

Philadelphia

Tue 5/19

5:30 pm-11:39 pm

1 stop8h 09m

Idaho Falls Fanning Field

Sat 5/23

12:44 pm-10:05 pm

1 stop7h 21m

$399

PhiladelphiaIdaho Falls

PHL - IDA

PHLIDA

Philadelphia

Tue 5/19

11:50 am-11:39 pm

2 stops13h 49m

Idaho Falls Fanning Field

Sat 5/23

2:08 pm-12:36 am

1 stop8h 28m

$404

PhiladelphiaIdaho Falls

PHL - IDA

PHLIDA

Philadelphia

Fri 7/10

11:36 am-6:18 pm

2 stops8h 42m

Idaho Falls Fanning Field

Wed 7/15

7:00 pm-8:41 am

2 stops11h 41m

$409

PhiladelphiaIdaho Falls

PHL - IDA

PHLIDA

Philadelphia

Tue 5/19

7:00 am-3:26 pm

1 stop10h 26m

Idaho Falls Fanning Field

Sat 5/23

6:00 am-6:16 pm

1 stop10h 16m

$429

PhiladelphiaIdaho Falls

PHL - IDA

PHLIDA

Philadelphia

Sun 8/2

11:06 am-4:00 pm

1 stop30h 54m

Idaho Falls Fanning Field

Mon 8/17

10:54 pm-7:03 pm

2 stops18h 09m

$431

PhiladelphiaIdaho Falls

PHL - IDA

PHLIDA

Philadelphia

Thu 5/28

7:25 am-2:34 pm

1 stop9h 09m

Idaho Falls Fanning Field

Mon 6/1

6:54 pm-6:10 am

1 stop9h 16m

$434

PhiladelphiaIdaho Falls

PHL - IDA

PHLIDA

Philadelphia

Fri 7/10

11:36 am-6:18 pm

2 stops8h 42m

Idaho Falls Fanning Field

Mon 7/20

7:00 pm-6:15 am

1 stop9h 15m

$438

PhiladelphiaIdaho Falls

PHL - IDA

PHLIDA

Philadelphia

Fri 7/10

11:36 am-6:18 pm

2 stops8h 42m

Idaho Falls Fanning Field

Wed 7/22

7:00 pm-8:41 am

2 stops11h 41m

$443

PhiladelphiaIdaho Falls

PHL - IDA

PHLIDA

Philadelphia

Sun 8/2

11:06 am-4:00 pm

1 stop30h 54m

Idaho Falls Fanning Field

Fri 8/14

10:54 pm-7:20 pm

2 stops18h 26m

$445

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 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 20% 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 24m

Direct flights

None
The fastest flight from Philadelphia to Idaho Falls takes 7h 24m
There are no direct flights from Philadelphia to Idaho Falls. There are no popular flight routes from Philadelphia to Idaho Falls.
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Frequently asked questions about flying from Philadelphia to Idaho Falls

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

    There are 1900.6 mi between Philadelphia and Idaho Falls Fanning Field. 7h 24m 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 $324Free CancellationRating
7.9
8,459 reviews
Search Delta flights
United AirlinesPriceFrom $379Free CancellationRating
7.4
9,683 reviews
Search United Airlines flights
American AirlinesPriceFrom $398Free CancellationRating
7.1
11,668 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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