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$206+ Cheap flights from Idaho Falls to Philadelphia (IDA - PHL)

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 6/5. Fares are subject to change and may not be available on all flights or dates of travel.
IDA — PHL
4月 7 — 4月 141
火 4/7
火 4/14
1 adult, Economy
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Cheap flight deals from Idaho Falls to Philadelphia

Cheapest flights from Idaho Falls to Philadelphia
Explore the most affordable flight options available from Idaho Falls to Philadelphia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 3月 8, 2026.

This Alaska Airlines deal was found by Cheapflights users on 3/5. 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.
火 10/276:15 am
IDA
-
PHL
1 stop8h 41m
Alaska Airlines
土 10/316:45 am
PHL
-
IDA
1 stop10h 44m
Alaska Airlines
Deal found 3/5$354
This Alaska Airlines deal was found by Cheapflights users on 3/7. 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.
金 4/174:59 pm
IDA
-
PHL
1 stop11h 06m
Alaska Airlines
火 4/217:25 am
PHL
-
IDA
1 stop10h 54m
Alaska Airlines
Deal found 3/7$379
This Delta deal was found by Cheapflights users on 3/6. 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.
金 5/16:58 pm
IDA
-
PHL
1 stop9h 01m
Delta
日 5/37:15 am
PHL
-
IDA
1 stop7h 11m
Delta
Deal found 3/6$384
This Delta deal was found by Cheapflights users on 3/6. 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.
金 4/176:58 pm
IDA
-
PHL
1 stop9h 01m
Delta
火 4/2111:38 am
PHL
-
IDA
2 stops8h 39m
Delta
Deal found 3/6$389
This United Airlines deal was found by Cheapflights users on 3/3. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
火 10/272:35 pm
IDA
-
PHL
1 stop6h 11m
United Airlines
土 10/3111:39 am
PHL
-
IDA
2 stops13h 14m
United Airlines
Deal found 3/3$424
This American Airlines deal was found by Cheapflights users on 3/6. 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.
金 4/171:43 pm
IDA
-
PHL
1 stop8h 28m
American Airlines
火 4/213:58 pm
PHL
-
IDA
1 stop9h 41m
American Airlines
Deal found 3/6$471
This Delta deal was found by Cheapflights users on 3/5. 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.
水 3/256:55 pm
IDA
-
PHL
1 stop8h 46m
Delta
水 4/812:26 pm
PHL
-
IDA
2 stops11h 50m
Delta
Deal found 3/5$480
This United Airlines deal was found by Cheapflights users on 3/6. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
金 4/172:30 pm
IDA
-
PHL
2 stops8h 29m
United Airlines
火 4/2110:00 am
PHL
-
IDA
2 stops13h 04m
United Airlines
Deal found 3/6$485

Find flight deals from Idaho Falls to Philadelphia

Discover tips and strategies to find the most affordable flight options for your journey from Idaho Falls (IDA) to Philadelphia (PHL). 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 3月 8, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$379
(Alaska Airlines)

One-way from

$206
(Kiwi.com)

Popular in

September

Cheapest in

April
Provider with most accurate pricing for Idaho Falls Fanning Field-Philadelphia flight deals.
Search Deals
Provider most trusted by Cheapflights users for Idaho Falls Fanning Field-Philadelphia flights.
Search Deals
From Idaho Falls Fanning Field to Philadelphia
Search Deals
One-way flight from Idaho Falls Fanning Field to Philadelphia
Search Deals
Highest demand for flights based on searches. 30% potential increase in price ($309 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 17% potential price decrease ($103 potential savings vs. average RT price).
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Idaho Falls to Philadelphia 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 3月 8, 2026.
Use the filters below to find and compare flights from Idaho Falls to Philadelphia that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Idaho FallsPhiladelphia

IDA - PHL

IDAPHL

Idaho Falls Fanning Field

金 4/17

4:59 pm-6:05 am

1 stop11h 06m

Philadelphia

火 4/21

7:25 am-4:19 pm

1 stop10h 54m

$379

Idaho FallsPhiladelphia

IDA - PHL

IDAPHL

Idaho Falls Fanning Field

金 5/1

6:58 pm-5:59 am

1 stop9h 01m

Philadelphia

日 5/3

7:15 am-12:26 pm

1 stop7h 11m

$384

Idaho FallsPhiladelphia

IDA - PHL

IDAPHL

Idaho Falls Fanning Field

金 4/17

6:58 pm-5:59 am

1 stop9h 01m

Philadelphia

火 4/21

11:38 am-6:17 pm

2 stops8h 39m

$389

Idaho FallsPhiladelphia

IDA - PHL

IDAPHL

Idaho Falls Fanning Field

土 5/16

6:54 pm-6:10 am

1 stop9h 16m

Philadelphia

土 6/6

6:00 pm-10:42 pm

1 stop6h 42m

$410

Idaho FallsPhiladelphia

IDA - PHL

IDAPHL

Idaho Falls Fanning Field

水 3/25

6:55 pm-5:41 am

1 stop8h 46m

Philadelphia

水 4/8

12:26 pm-10:16 pm

2 stops11h 50m

$480

Idaho FallsPhiladelphia

IDA - PHL

IDAPHL

Idaho Falls Fanning Field

金 4/17

2:30 pm-12:59 am

2 stops8h 29m

Philadelphia

火 4/21

10:00 am-9:04 pm

2 stops13h 04m

$485

Idaho FallsPhiladelphia

IDA - PHL

IDAPHL

Idaho Falls Fanning Field

木 7/23

4:14 pm-3:23 pm

1 stop21h 09m

Philadelphia

日 8/2

5:43 pm-1:06 pm

1 stop21h 23m

$499
Quickest round-trip

Idaho FallsPhiladelphia

IDA - PHL

IDAPHL

Idaho Falls Fanning Field

火 8/25

10:35 am-7:10 pm

1 stop6h 35m

Philadelphia

土 8/29

10:00 am-3:29 pm

1 stop7h 29m

$512
Cheapest one-way

Idaho FallsPhiladelphia

IDA - PHL

IDAPHL

Idaho Falls Fanning Field

金 6/5

6:54 pm-6:10 am

1 stop9h 16m

$246

Idaho FallsPhiladelphia

IDA - PHL

IDAPHL

Idaho Falls Fanning Field

金 6/5

10:56 pm-10:47 pm

3 stops21h 51m

$246

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/7

Showing 1-10 of 16 resultsSorted by cheapest first
1
2

Compare providers for flights from Idaho Falls to Philadelphia

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 Idaho Falls to Philadelphia in March.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice 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 Idaho Falls-Philadelphia flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Idaho Falls-Philadelphia flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Idaho Falls-Philadelphia flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Idaho Falls-Philadelphia 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 Idaho Falls-Philadelphia 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 Idaho Falls to Philadelphia

Have a flexible travel schedule? Discover the best time to fly to Philadelphia from Idaho Falls 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 Idaho Falls to Philadelphia

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

Currently, December is the cheapest month in which you can book a flight from Idaho Falls to Philadelphia (average of $102). Flying from Idaho Falls to Philadelphia in February is currently the most expensive (average of $373). 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 Philadelphia

Get insights into the airlines that provide service to Philadelphia. 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 Philadelphia. Reviews last updated 3月 8, 2026.
Read reviews from past customers who have flown Delta, United Airlines, and American Airlines from Idaho Falls to Philadelphia. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
8,269 reviews

Boarding

8.1

Comfort

7.9

Overall

7.9

Food

7.2

Entertainment

7.8

Crew

8.5

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Delta
7.9
Good
8,269 reviews
Delta
7.9
Good
8,269 reviews

Boarding

8.1

Comfort

7.9

Overall

7.9

Food

7.2

Entertainment

7.8

Crew

8.5

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
United Airlines
7.4
Good
9,405 reviews
Delta
7.9
Good
8,269 reviews

Boarding

8.1

Comfort

7.9

Overall

7.9

Food

7.2

Entertainment

7.8

Crew

8.5

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
American Airlines
7.1
Good
11,397 reviews
Delta
7.9
Good
8,269 reviews

Boarding

8.1

Comfort

7.9

Overall

7.9

Food

7.2

Entertainment

7.8

Crew

8.5

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

Related info for your journey

Find useful and relevant information for your journey from Idaho Falls to Philadelphia. 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 Idaho Falls to Philadelphia?

    Airlines like Alaska Airlines and Delta fly from Idaho Falls to Philadelphia in about 9h 01m. The time it takes to get you to your destination can typically vary by up to 2h 05m. Airlines will cover a distance of 1899 mi. This flight may include one or multiple stops.

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

    Currently priced at $259, Delta will fly you from Idaho Falls to Philadelphia and back. In addition to Delta, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from United Airlines and American Airlines - these airlines can fly you to your destination from $418 and $475, respectively. These flights start at 62% lower than the current average price 3 months from now.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Idaho Falls to Philadelphia 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 Idaho Falls to Philadelphia?

    Currently, December is the cheapest month in which you can book a flight from Idaho Falls to Philadelphia (average of $102). Flying from Idaho Falls to Philadelphia in February is currently the most expensive (average of $373). 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 Philadelphia?

Book flights to Philadelphia if you plan to visit one of these locations
Wildwood
Pottstown
Reading
Ocean City
King of Prussia
Cherry Hill
Lewes
Dewey Beach
Ephrata
Camden
Vineland
Milford
Dover
Elkton
Essington
Willow Grove
New Castle
Millville
Glen Mills
Chester

Browse thousands of different options on Cheapflights for your next trip

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Top 3 airlines flying from Idaho Falls to Philadelphia

Discover the top 3 airlines that operate flights from Idaho Falls to Philadelphia. 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 3月 8, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$259Average$488FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$418Average$846FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$475Average$595FlexibilityNo cancel feeOn-time71%

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