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Idaho Falls

$158+ Cheap flights from Philadelphia to Idaho Falls (PHL - IDA)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/12. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — IDA
nov. 27 — dic. 41
jue. 11/27
jue. 12/4
1 adult, Economy
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Find flight deals from Philadelphia to Idaho Falls

Cheapest flights from Philadelphia to Idaho Falls
Explore the most affordable flight options available from Philadelphia to Idaho Falls. Find the lowest fares from popular airlines and budget airlines, with prices last updated on octubre 28, 2025.

This Alaska Airlines deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 12/56:54 pmPHL - IDA
1 stop23h 33mAlaska Airlines
mié. 12/105:07 pmIDA - PHL
1 stop10h 39mAlaska Airlines
Deal found 10/26$412
This Delta deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 11/187:10 amPHL - IDA
1 stop7h 24mDelta
vie. 11/281:15 pmIDA - PHL
1 stop8h 23mDelta
Deal found 10/28$419
This American Airlines deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 11/1812:28 pmPHL - IDA
2 stops12h 06mAmerican Airlines
vie. 11/287:10 amIDA - PHL
2 stops13h 45mAmerican Airlines
Deal found 10/28$459
This Delta deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 11/107:10 amPHL - IDA
1 stop7h 24mDelta
vie. 11/146:57 pmIDA - PHL
1 stop8h 58mDelta
Deal found 10/26$481
This Delta deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 11/147:10 amPHL - IDA
1 stop7h 24mDelta
lun. 11/176:57 pmIDA - PHL
1 stop8h 58mDelta
Deal found 10/26$485
This American Airlines deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 11/1411:09 amPHL - IDA
2 stops13h 25mAmerican Airlines
lun. 11/177:10 amIDA - PHL
2 stops12h 30mAmerican Airlines
Deal found 10/26$509
This Expedia deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 12/26:54 pmPHL - IDA
1 stop23h 33mAlaska Airlines
jue. 12/115:07 pmIDA - PHL
1 stop10h 39mAlaska Airlines
Deal found 10/26$533
This American Airlines deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 12/21:40 pmPHL - IDA
2 stops10h 54mAmerican Airlines
jue. 12/117:00 amIDA - PHL
1 stop8h 49mAmerican Airlines
Deal found 10/26$535

Cheap flight deals from Philadelphia to Idaho Falls

Discover tips and strategies to find the most affordable flight options for your journey from Philadelphia (PHL) to Idaho Falls (IDA). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated octubre 28, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$412
(Alaska Airlines)

One-way from

$158
(Kiwi.com)

Popular in

May

Cheapest in

October

Average price

$486
Provider with most accurate pricing for Philadelphia-Idaho Falls Fanning Field flight deals.
Search Deals
Provider most trusted by Cheapflights users for Philadelphia-Idaho Falls Fanning Field flights.
Search Deals
From Philadelphia to Idaho Falls Fanning Field
Search Deals
One-way flight from Philadelphia to Idaho Falls Fanning Field
Search Deals
Highest demand for flights based on searches. 24% potential increase in price ($211 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($32 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 2025
Search Deals

Cheapflights 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, Cheapflights users made 2,558,603 searches. Data last updated octubre 28, 2025.
Use the filters below to find and compare flights from Philadelphia to Idaho Falls that are best for you.

Fly from

Philadelphia

Fly to

Idaho Falls

Route

Depart

Return

Price

PhiladelphiaIdaho Falls

PHL - IDA

PHLIDA

Philadelphia

vie. 12/5

6:54 pm-4:27 pm

1 stop23h 33m

Idaho Falls Fanning Field

mié. 12/10

5:07 pm-5:46 am

1 stop10h 39m

$412

PhiladelphiaIdaho Falls

PHL - IDA

PHLIDA

Philadelphia

sáb. 1/17

7:06 pm-6:18 pm

1 stop25h 12m

Idaho Falls Fanning Field

sáb. 1/24

9:00 am-6:06 pm

1 stop31h 06m

$418

PhiladelphiaIdaho Falls

PHL - IDA

PHLIDA

Philadelphia

mar. 11/18

7:10 am-12:34 pm

1 stop7h 24m

Idaho Falls Fanning Field

vie. 11/28

1:15 pm-11:38 pm

1 stop8h 23m

$419

PhiladelphiaIdaho Falls

PHL - IDA

PHLIDA

Philadelphia

sáb. 1/17

12:08 pm-10:36 pm

2 stops12h 28m

Idaho Falls Fanning Field

sáb. 1/24

7:20 am-9:18 pm

2 stops11h 58m

$429

PhiladelphiaIdaho Falls

PHL - IDA

PHLIDA

Philadelphia

mar. 11/18

12:28 pm-10:34 pm

2 stops12h 06m

Idaho Falls Fanning Field

vie. 11/28

7:10 am-10:55 pm

2 stops13h 45m

$459

PhiladelphiaIdaho Falls

PHL - IDA

PHLIDA

Philadelphia

vie. 11/14

7:10 am-12:34 pm

1 stop7h 24m

Idaho Falls Fanning Field

lun. 11/17

6:57 pm-5:55 am

1 stop8h 58m

$485

PhiladelphiaIdaho Falls

PHL - IDA

PHLIDA

Philadelphia

lun. 11/10

2:30 pm-10:19 pm

2 stops9h 49m

Idaho Falls Fanning Field

vie. 11/14

6:57 pm-5:55 am

1 stop8h 58m

$486

PhiladelphiaIdaho Falls

PHL - IDA

PHLIDA

Philadelphia

vie. 11/14

11:09 am-10:34 pm

2 stops13h 25m

Idaho Falls Fanning Field

lun. 11/17

7:10 am-9:40 pm

2 stops12h 30m

$509

PhiladelphiaIdaho Falls

PHL - IDA

PHLIDA

Philadelphia

mar. 12/2

6:54 pm-4:27 pm

1 stop23h 33m

Idaho Falls Fanning Field

jue. 12/11

5:07 pm-5:46 am

1 stop10h 39m

$533

PhiladelphiaIdaho Falls

PHL - IDA

PHLIDA

Philadelphia

vie. 12/12

4:12 pm-11:59 am

2 stops21h 47m

$158

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/28

Showing 1-10 of 18 results
1
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Compare providers for flights from Philadelphia to Idaho Falls

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Philadelphia to Idaho Falls in October.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Philadelphia-Idaho Falls flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Philadelphia-Idaho Falls flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Philadelphia-Idaho Falls flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Philadelphia-Idaho Falls flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Philadelphia-Idaho Falls flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Philadelphia to Idaho Falls

Have a flexible travel schedule? Discover the best time to fly to Idaho Falls from Philadelphia with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Philadelphia to Idaho Falls

What is the cheapest month to book a flight from Philadelphia to Idaho Falls?

Currently, October is the cheapest month in which you can book a flight from Philadelphia to Idaho Falls (average of $138). Flying from Philadelphia to Idaho Falls in December is currently the most expensive (average of $413). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Reviews of airlines servicing Idaho Falls

Get insights into the airlines that provide service to Idaho Falls. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Idaho Falls. Reviews last updated octubre 28, 2025.
Read through reviews of airlines operating flights from Philadelphia to Idaho Falls, such as Delta, United Airlines, and American Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
7,994 reviews

Crew

8.5

Boarding

8.2

Food

7.3

Comfort

7.9

Entertainment

7.9

Overall

7.9

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.
Delta
7.9
Good
7,994 reviews
Delta
7.9
Good
7,994 reviews

Crew

8.5

Boarding

8.2

Food

7.3

Comfort

7.9

Entertainment

7.9

Overall

7.9

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.
United Airlines
7.4
Good
9,001 reviews
Delta
7.9
Good
7,994 reviews

Crew

8.5

Boarding

8.2

Food

7.3

Comfort

7.9

Entertainment

7.9

Overall

7.9

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.
American Airlines
7.2
Good
11,032 reviews
Delta
7.9
Good
7,994 reviews

Crew

8.5

Boarding

8.2

Food

7.3

Comfort

7.9

Entertainment

7.9

Overall

7.9

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.

Related info for your journey

Find useful and relevant information for your journey from Philadelphia to Idaho Falls. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Philadelphia to Idaho Falls?

    A quick flight from Philadelphia to Idaho Falls can take about 7h 24m. Alaska Airlines provides one of the quickest options available for as low as $419. There are 1899 mi between Philadelphia and Idaho Falls. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines flying from Philadelphia to Idaho Falls round-trip?

    Cheapflights users have booked flights from Philadelphia to Idaho Falls round-trip from $324. Other airlines that can offer you cheap pricing are American Airlines, from $354, and United Airlines, from $414. You may be able to fly from Philadelphia to Idaho Falls for 49% less than the average price by searching for these airlines.

  • Can I find deals for flights from Philadelphia to Idaho Falls that include hotel bookings?

    Yes. In addition to deals on Philadelphia to Idaho Falls flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Philadelphia to Idaho Falls?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Philadelphia to Idaho Falls.

  • Can I find deals for business class flights from Philadelphia to Idaho Falls?

    Yes. Cheapflights offers flight deals from Philadelphia to Idaho Falls by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Philadelphia to Idaho Falls?

    Currently, October is the cheapest month in which you can book a flight from Philadelphia to Idaho Falls (average of $138). Flying from Philadelphia to Idaho Falls in December is currently the most expensive (average of $413). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Idaho Falls?

Book flights to Idaho Falls if you plan to visit one of these locations
Rexburg

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Alternative routes for Philadelphia to Idaho Falls

See prices for flight routes from nearby airports that may be better suited for you.
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Top 3 airlines flying from Philadelphia to Idaho Falls

Discover the top 3 airlines that operate flights from Philadelphia to Idaho Falls. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated octubre 28, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$324Average$532FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$354Average$600FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$414Average$704FlexibilityNo cancel feeOn-time69%

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