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Cheap flights from Philadelphia to Idaho Falls from $293

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 11/9. 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

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Philadelphia to Idaho Falls

Cheap round-trip flights

Enter your travel dates to find the best prices.
Delta Logo
7:20 am - 12:15 pmPHL  Philadelphia-IDA Idaho Falls Fanning Field
6h 55m1 stop Salt Lake City
Delta Logo
6:56 pm - 6:05 amIDA  Idaho Falls Fanning Field-PHL Philadelphia
9h 09m1 stop Salt Lake City
$359Delta
Sat, Oct 3 - Fri, Oct 9
Delta Logo
7:20 am - 12:15 pmPHL  Philadelphia-IDA Idaho Falls Fanning Field
6h 55m1 stop Salt Lake City
Delta Logo
6:57 pm - 6:05 amIDA  Idaho Falls Fanning Field-PHL Philadelphia
9h 08m1 stop Salt Lake City
$359Delta
Tue, Sep 29 - Mon, Oct 5
American Airlines Logo
7:30 am - 1:09 pmPHL  Philadelphia-IDA Idaho Falls Fanning Field
7h 39m1 stop Chicago O'Hare Intl
American Airlines Logo
12:06 pm - 10:51 pmIDA  Idaho Falls Fanning Field-PHL Philadelphia
8h 45m1 stop Dallas/Fort Worth
$359American Airlines
Tue, Sep 1 - Sat, Sep 5
Alaska Airlines Logo
7:02 am - 3:20 pmPHL  Philadelphia-IDA Idaho Falls Fanning Field
10h 18m1 stop Seattle/Tacoma Intl
Alaska Airlines Logo
6:09 am - 5:38 pmIDA  Idaho Falls Fanning Field-PHL Philadelphia
9h 29m1 stop Seattle/Tacoma Intl
$359Alaska Airlines
Sat, Oct 3 - Tue, Oct 6
Delta Logo
2:31 pm - 10:32 pmPHL  Philadelphia-IDA Idaho Falls Fanning Field
10h 01m2 stops Atlanta Hartsfield-Jackson Salt Lake City
Delta Logo
6:00 am - 4:45 pmIDA  Idaho Falls Fanning Field-PHL Philadelphia
8h 45m1 stop Salt Lake City
$364Delta
Tue, Sep 1 - Sat, Sep 5
American Airlines Logo
3:12 pm - 9:20 pmPHL  Philadelphia-IDA Idaho Falls Fanning Field
8h 08m1 stop Dallas/Fort Worth
American Airlines Logo
1:58 pm - 10:49 pmIDA  Idaho Falls Fanning Field-PHL Philadelphia
6h 51m1 stop Chicago O'Hare Intl
$389American Airlines
Wed, Sep 23 - Thu, Oct 1
Alaska Airlines Logo
7:02 am - 3:20 pmPHL  Philadelphia-IDA Idaho Falls Fanning Field
10h 18m1 stop Seattle/Tacoma Intl
Alaska Airlines Logo
6:09 am - 5:38 pmIDA  Idaho Falls Fanning Field-PHL Philadelphia
9h 29m1 stop Seattle/Tacoma Intl
$389Alaska Airlines
Sat, Oct 24 - Tue, Oct 27
American Airlines Logo
5:00 am - 11:30 amPHL  Philadelphia-IDA Idaho Falls Fanning Field
8h 30m1 stop Dallas/Fort Worth
American Airlines Logo
1:43 pm - 10:23 pmIDA  Idaho Falls Fanning Field-PHL Philadelphia
6h 40m1 stop Chicago O'Hare Intl
$389American Airlines
Thu, Aug 27 - Mon, Aug 31
United Airlines Logo
6:16 am - 3:23 pmPHL  Philadelphia-IDA Idaho Falls Fanning Field
11h 07m2 stops Houston George Bush Intcntl Denver Intl
United Airlines Logo
2:25 pm - 11:44 pmIDA  Idaho Falls Fanning Field-PHL Philadelphia
7h 19m1 stop Denver Intl
$399United Airlines
Thu, Aug 27 - Wed, Sep 2
United Airlines Logo
8:20 am - 5:16 pmPHL  Philadelphia-IDA Idaho Falls Fanning Field
10h 56m2 stops Chicago O'Hare Intl Denver Intl
United Airlines Logo
2:25 pm - 11:44 pmIDA  Idaho Falls Fanning Field-PHL Philadelphia
7h 19m1 stop Denver Intl
$399United Airlines
Wed, Aug 26 - Wed, Sep 2

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American Airlines flights from Philadelphia to Idaho Falls

Our best American Airlines deals on Philadelphia to Idaho Falls flight tickets
American Airlines
Sep 22
PHL3:12 pmPhiladelphia
8h 08m
1 stop
IDA9:20 pmIdaho Falls Fanning Field
Sep 29
IDA12:15 pmIdaho Falls Fanning Field
10h 07m
1 stop
PHL12:22 amPhiladelphia
$389
American Airlines
Aug 27
PHL5:43 amPhiladelphia
9h 26m
1 stop
IDA1:09 pmIdaho Falls Fanning Field
Aug 31
IDA1:43 pmIdaho Falls Fanning Field
8h 16m
1 stop
PHL11:59 pmPhiladelphia
$394
American Airlines
Aug 21
PHL5:00 amPhiladelphia
8h 30m
1 stop
IDA11:30 amIdaho Falls Fanning Field
Aug 22
IDA1:43 pmIdaho Falls Fanning Field
6h 40m
1 stop
PHL10:23 pmPhiladelphia
$429

United Airlines flights from Philadelphia to Idaho Falls

Our best United Airlines deals on Philadelphia to Idaho Falls flight tickets
United Airlines
Aug 26
PHL8:20 amPhiladelphia
10h 56m
2 stops
IDA5:16 pmIdaho Falls Fanning Field
Sep 2
IDA2:25 pmIdaho Falls Fanning Field
7h 19m
1 stop
PHL11:44 pmPhiladelphia
$399
United Airlines
Sep 12
PHL10:05 amPhiladelphia
7h 18m
1 stop
IDA3:23 pmIdaho Falls Fanning Field
Sep 19
IDA2:25 pmIdaho Falls Fanning Field
7h 19m
1 stop
PHL11:44 pmPhiladelphia
$421
United Airlines
Aug 25
PHL10:05 amPhiladelphia
7h 18m
1 stop
IDA3:23 pmIdaho Falls Fanning Field
Aug 29
IDA10:35 amIdaho Falls Fanning Field
12h 24m
2 stops
PHL12:59 amPhiladelphia
$434

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 August 11, 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 Philadelphia - IDA Idaho Falls Fanning Field

PHLIDA

Philadelphia

Sat 10/3

7:20 am-12:15 pm

1 stop6h 55m

Idaho Falls Fanning Field

Fri 10/9

6:56 pm-6:05 am

1 stop9h 09m

$359

PhiladelphiaIdaho Falls

PHL Philadelphia - IDA Idaho Falls Fanning Field

PHLIDA

Philadelphia

Tue 9/29

7:20 am-12:15 pm

1 stop6h 55m

Idaho Falls Fanning Field

Mon 10/5

6:57 pm-6:05 am

1 stop9h 08m

$359

PhiladelphiaIdaho Falls

PHL Philadelphia - IDA Idaho Falls Fanning Field

PHLIDA

Philadelphia

Tue 9/1

7:30 am-1:09 pm

1 stop7h 39m

Idaho Falls Fanning Field

Sat 9/5

12:06 pm-10:51 pm

1 stop8h 45m

$359

PhiladelphiaIdaho Falls

PHL Philadelphia - IDA Idaho Falls Fanning Field

PHLIDA

Philadelphia

Sat 10/3

7:02 am-3:20 pm

1 stop10h 18m

Idaho Falls Fanning Field

Tue 10/6

6:09 am-5:38 pm

1 stop9h 29m

$359

PhiladelphiaIdaho Falls

PHL Philadelphia - IDA Idaho Falls Fanning Field

PHLIDA

Philadelphia

Tue 9/1

2:31 pm-10:32 pm

2 stops10h 01m

Idaho Falls Fanning Field

Sat 9/5

6:00 am-4:45 pm

1 stop8h 45m

$364
Quickest round-trip

PhiladelphiaIdaho Falls

PHL Philadelphia - IDA Idaho Falls Fanning Field

PHLIDA

Philadelphia

Wed 9/23

3:12 pm-9:20 pm

1 stop8h 08m

Idaho Falls Fanning Field

Thu 10/1

1:58 pm-10:49 pm

1 stop6h 51m

$389

PhiladelphiaIdaho Falls

PHL Philadelphia - IDA Idaho Falls Fanning Field

PHLIDA

Philadelphia

Sat 10/24

7:02 am-3:20 pm

1 stop10h 18m

Idaho Falls Fanning Field

Tue 10/27

6:09 am-5:38 pm

1 stop9h 29m

$389

PhiladelphiaIdaho Falls

PHL Philadelphia - IDA Idaho Falls Fanning Field

PHLIDA

Philadelphia

Thu 8/27

5:00 am-11:30 am

1 stop8h 30m

Idaho Falls Fanning Field

Mon 8/31

1:43 pm-10:23 pm

1 stop6h 40m

$389

PhiladelphiaIdaho Falls

PHL Philadelphia - IDA Idaho Falls Fanning Field

PHLIDA

Philadelphia

Thu 8/27

6:16 am-3:23 pm

2 stops11h 07m

Idaho Falls Fanning Field

Wed 9/2

2:25 pm-11:44 pm

1 stop7h 19m

$399

PhiladelphiaIdaho Falls

PHL Philadelphia - IDA Idaho Falls Fanning Field

PHLIDA

Philadelphia

Wed 8/26

8:20 am-5:16 pm

2 stops10h 56m

Idaho Falls Fanning Field

Wed 9/2

2:25 pm-11:44 pm

1 stop7h 19m

$399

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?

Prices are currently low for flights on this route.

Typical prices usually range from $542 to $608.
The lowest price recently found on this route was $359.

What is the cheapest month to fly to Idaho Falls?

If you aren’t able to travel to Idaho Falls during the month of March, then flying in April is also cheap. Prices for this month can be found on momondo for an average of $497.

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 13m

Direct flights

None
The fastest flight from Philadelphia to Idaho Falls takes 7h 13m
There are no direct flights from Philadelphia to Idaho Falls. There are no popular flight routes from Philadelphia to Idaho Falls.
Search flight deals

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 13m 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 $354Free CancellationRating
7.8
8,505 reviews
Search Delta flights
United AirlinesPriceFrom $379Free CancellationRating
7.4
10,103 reviews
Search United Airlines flights
American AirlinesPriceFrom $413Free CancellationRating
7.1
11,902 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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