$152+ 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 7/20. Fares are subject to change and may not be available on all flights or dates of travel.
IDA — PHL
Jul 6 — Jul 131
Round-trip
1 adult, Economy
We work with more than 300 partners to bring you better travel deals
Find cheap flights from Idaho Falls to Philadelphia with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Idaho Falls to Philadelphia
Cheapest
Best
Last-minute
One-way
Cheapest flights from Idaho Falls to PhiladelphiaExplore 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 June 6, 2026.
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 June 6, 2026.
This Alaska Airlines deal was found by Cheapflights users on 6/1. 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.
Sat 10/246:09 am
IDA
- PHL
1 stop9h 30m
Alaska Airlines
Wed 10/287:00 am
PHL
- IDA
1 stop10h 35m
Alaska Airlines
Deal found 6/1![Alaska Airlines logo]()
$349
This Alaska Airlines deal was found by Cheapflights users on 6/4. 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.
Fri 10/23:57 pm
IDA
- PHL
1 stop21h 09m
Alaska Airlines
Mon 10/54:06 pm
PHL
- IDA
1 stop23h 00m
Alaska Airlines
Deal found 6/4![Alaska Airlines logo]()
$399
This Kiwi.com deal was found by Cheapflights users on 6/5. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/1710:54 pm
IDA
- PHL
1 stop29h 26m
Multiple Airlines
Sun 8/236:07 pm
PHL
- IDA
2 stops18h 40m
Multiple Airlines
Deal found 6/5![Multiple Airlines logo]()
$425
This Kiwi.com deal was found by Cheapflights users on 6/5. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/1710:54 pm
IDA
- PHL
1 stop29h 26m
Multiple Airlines
Thu 8/276:07 pm
PHL
- IDA
2 stops18h 15m
Multiple Airlines
Deal found 6/5![Multiple Airlines logo]()
$439
This Kiwi.com deal was found by Cheapflights users on 6/5. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/215:33 pm
IDA
- PHL
1 stop10h 47m
Multiple Airlines
Sun 8/236:07 pm
PHL
- IDA
2 stops18h 40m
Multiple Airlines
Deal found 6/5![Multiple Airlines logo]()
$443
This United Airlines deal was found by Cheapflights users on 6/4. 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.
Wed 10/282:35 pm
IDA
- PHL
1 stop6h 11m
United Airlines
Sat 10/316:10 am
PHL
- IDA
2 stops13h 12m
United Airlines
Deal found 6/4![United Airlines logo]()
$454
This Kiwi.com deal was found by Cheapflights users on 6/5. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/215:33 pm
IDA
- PHL
1 stop10h 47m
Multiple Airlines
Thu 8/276:07 pm
PHL
- IDA
2 stops18h 15m
Multiple Airlines
Deal found 6/5![Multiple Airlines logo]()
$458
This Delta deal was found by Cheapflights users on 6/5. 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.
Sun 8/167:00 pm
IDA
- PHL
1 stop9h 05m
Delta
Wed 8/267:20 am
PHL
- IDA
1 stop9h 15m
Delta
Deal found 6/5![Delta logo]()
$462
Best flights from Idaho Falls to PhiladelphiaDiscover carefully curated flight deals from Idaho Falls to Philadelphia that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 6, 2026.
Discover carefully curated flight deals from Idaho Falls to Philadelphia that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 6, 2026.
This Alaska Airlines deal was found by Cheapflights users on 6/2. 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.
Sat 10/246:09 am
IDA
- PHL
1 stop9h 30m
Alaska Airlines
Wed 10/287:00 am
PHL
- IDA
1 stop10h 35m
Alaska Airlines
Deal found 6/2![Alaska Airlines logo]()
$349
This United Airlines deal was found by Cheapflights users on 6/4. 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.
Wed 10/282:35 pm
IDA
- PHL
1 stop6h 11m
United Airlines
Sat 10/3110:00 am
PHL
- IDA
1 stop9h 22m
United Airlines
Deal found 6/4![United Airlines logo]()
$449
This Alaska Airlines deal was found by Cheapflights users on 6/5. 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.
Wed 10/286:09 am
IDA
- PHL
1 stop9h 30m
Alaska Airlines
Sat 10/317:00 am
PHL
- IDA
1 stop10h 35m
Alaska Airlines
Deal found 6/5![Alaska Airlines logo]()
$399
This Alaska Airlines deal was found by Cheapflights users on 6/1. 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.
Fri 10/23:57 pm
IDA
- PHL
1 stop21h 09m
Alaska Airlines
Mon 10/54:06 pm
PHL
- IDA
1 stop23h 00m
Alaska Airlines
Deal found 6/1![Alaska Airlines logo]()
$449
Last-minute flights from Idaho Falls to PhiladelphiaDiscover last-minute flight deals from Idaho Falls to Philadelphia. Data last updated June 6, 2026 and is based on user searches.
Discover last-minute flight deals from Idaho Falls to Philadelphia. Data last updated June 6, 2026 and is based on user searches.
This American Airlines deal was found by Cheapflights users on 6/3. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/77:00 am
IDA
- PHL
1 stop7h 28m
American Airlines
Tue 6/94:22 pm
PHL
- IDA
1 stop7h 53m
American Airlines
Deal found 6/3![American Airlines logo]()
$888
This Alaska Airlines deal was found by Cheapflights users on 6/3. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/161:43 pm
IDA
- PHL
1 stop14h 30m
Alaska Airlines
Fri 6/195:46 pm
PHL
- IDA
1 stop21h 20m
Alaska Airlines
Deal found 6/3![Alaska Airlines logo]()
$689
This Kiwi.com deal was found by Cheapflights users on 6/3. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/114:03 pm
IDA
- PHL
2 stops18h 19m
Multiple Airlines
Sun 7/1911:06 am
PHL
- IDA
1 stop30h 54m
Multiple Airlines
Deal found 6/3![Multiple Airlines logo]()
$565
This Alaska Airlines deal was found by Cheapflights users on 6/3. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/111:43 pm
IDA
- PHL
1 stop14h 30m
Alaska Airlines
Sun 7/195:46 pm
PHL
- IDA
1 stop21h 20m
Alaska Airlines
Deal found 6/3![Alaska Airlines logo]()
$707
This Expedia deal was found by Cheapflights users on 6/2. 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.
Wed 7/227:15 am
IDA
- PHL
1 stop20h 58m
Alaska Airlines
Tue 7/285:46 pm
PHL
- IDA
1 stop21h 20m
Alaska Airlines
Deal found 6/2![Alaska Airlines logo]()
$509
This Expedia deal was found by Cheapflights users on 6/4. 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.
Wed 7/224:14 pm
IDA
- PHL
1 stop21h 09m
Alaska Airlines
Sun 7/267:33 am
PHL
- IDA
1 stop10h 04m
Alaska Airlines
Deal found 6/4![Alaska Airlines logo]()
$657
This Delta deal was found by Cheapflights users on 6/2. 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.
Wed 7/2211:25 am
IDA
- PHL
2 stops10h 31m
Delta
Tue 7/285:40 am
PHL
- IDA
2 stops10h 56m
Delta
Deal found 6/2![Delta logo]()
$737
One-way flights from Idaho Falls to PhiladelphiaSearch for one-way flight options from Idaho Falls to Philadelphia. Find affordable one-way fares based on user searches. Data last updated June 6, 2026.
Search for one-way flight options from Idaho Falls to Philadelphia. Find affordable one-way fares based on user searches. Data last updated June 6, 2026.
This Kiwi.com deal was found by Cheapflights users on 6/4. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/2010:47 pm
IDA
- PHL
1 stop29h 13m
Multiple Airlines
Deal found 6/4![Multiple Airlines logo]()
$152
This Alaska Airlines deal was found by Cheapflights users on 6/1. 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.
Sat 9/56:18 am
IDA
- PHL
1 stop8h 47m
Alaska Airlines
Deal found 6/1![Alaska Airlines logo]()
$225
This Expedia deal was found by Cheapflights users on 6/1. 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.
Fri 6/264:14 pm
IDA
- PHL
1 stop21h 09m
Alaska Airlines
Deal found 6/1![Alaska Airlines logo]()
$230
This Delta deal was found by Cheapflights users on 6/1. 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.
Mon 9/77:10 pm
IDA
- PHL
1 stop8h 55m
Delta
Deal found 6/1![Delta logo]()
$271
This Kiwi.com deal was found by Cheapflights users on 6/1. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/78:36 pm
IDA
- PHL
2 stops13h 11m
Multiple Airlines
Deal found 6/1![Multiple Airlines logo]()
$272
This Delta deal was found by Cheapflights users on 6/2. 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.
Wed 7/296:00 am
IDA
- PHL
2 stops10h 04m
Delta
Deal found 6/2![Delta logo]()
$273
This KAYAK deal was found by Cheapflights users on 6/5. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/167:00 pm
IDA
- PHL
1 stop9h 05m
Delta
Deal found 6/5![Delta logo]()
$287
This Expedia deal was found by Cheapflights users on 6/1. 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.
Sat 6/274:14 pm
IDA
- PHL
1 stop21h 09m
Alaska Airlines
Deal found 6/1![Alaska Airlines logo]()
$291
This United Airlines deal was found by Cheapflights users on 6/5. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/112:30 pm
IDA
- PHL
2 stops8h 27m
United Airlines
Deal found 6/5![United Airlines logo]()
$298
This United Airlines deal was found by Cheapflights users on 6/1. 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.
Sat 6/272:30 pm
IDA
- PHL
2 stops8h 27m
United Airlines
Deal found 6/1![United Airlines logo]()
$301
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 June 6, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $349 (Alaska Airlines) |
One-way from | $152 (Kiwi.com) |
Popular in | December |
Cheapest in | April |
Average price | $788 |
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 June 6, 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
Cheapest round-trip
Idaho FallsPhiladelphia
IDA - PHL
IDAPHL
Idaho Falls Fanning Field
Sat 10/24
6:09 am-5:39 pm
1 stop9h 30m
Philadelphia
Wed 10/28
7:00 am-3:35 pm
1 stop10h 35m
$349
Idaho FallsPhiladelphia
IDA - PHL
IDAPHL
Idaho Falls Fanning Field
Wed 10/28
6:09 am-5:39 pm
1 stop9h 30m
Philadelphia
Sat 10/31
7:00 am-3:35 pm
1 stop10h 35m
$399
Quickest round-trip
Idaho FallsPhiladelphia
IDA - PHL
IDAPHL
Idaho Falls Fanning Field
Wed 10/28
2:35 pm-10:46 pm
1 stop6h 11m
Philadelphia
Sat 10/31
10:00 am-5:22 pm
1 stop9h 22m
$449
Idaho FallsPhiladelphia
IDA - PHL
IDAPHL
Idaho Falls Fanning Field
Fri 10/2
3:57 pm-3:06 pm
1 stop21h 09m
Philadelphia
Mon 10/5
4:06 pm-1:06 pm
1 stop23h 00m
$449
Cheapest one-way
Idaho FallsPhiladelphia
IDA - PHL
IDAPHL
Idaho Falls Fanning Field
Mon 7/20
10:47 pm-6:00 am
1 stop29h 13m
$152
Idaho FallsPhiladelphia
IDA - PHL
IDAPHL
Idaho Falls Fanning Field
Sat 9/5
6:18 am-5:05 pm
1 stop8h 47m
$225
Idaho FallsPhiladelphia
IDA - PHL
IDAPHL
Idaho Falls Fanning Field
Wed 7/29
6:00 am-6:04 pm
2 stops10h 04m
$273
Idaho FallsPhiladelphia
IDA - PHL
IDAPHL
Idaho Falls Fanning Field
Sun 8/16
7:00 pm-6:05 am
1 stop9h 05m
$287
Idaho FallsPhiladelphia
IDA - PHL
IDAPHL
Idaho Falls Fanning Field
Sat 6/27
4:14 pm-3:23 pm
1 stop21h 09m
$291
Idaho FallsPhiladelphia
IDA - PHL
IDAPHL
Idaho Falls Fanning Field
Sun 7/12
7:00 pm-6:15 am
1 stop9h 15m
$298
Showing 1-10 of 13 resultsSorted by cheapest first
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 June.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
- 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.
IDA-PHL
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, April is the cheapest month in which you can book a flight from Idaho Falls to Philadelphia (average of $386). Flying from Idaho Falls to Philadelphia in December is currently the most expensive (average of $1,082). 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.
How much does it cost to fly round-trip from Idaho Falls to Philadelphia?
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 June 6, 2026.
Read reviews from past customers who have flown Delta,United Airlines, andAmerican 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.
Boarding
8.1
Comfort
7.8
Overall
7.9
Crew
8.5
Entertainment
7.8
Food
7.2
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Boarding
8.1
Comfort
7.8
Overall
7.9
Crew
8.5
Entertainment
7.8
Food
7.2
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Boarding
8.1
Comfort
7.8
Overall
7.9
Crew
8.5
Entertainment
7.8
Food
7.2
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Boarding
8.1
Comfort
7.8
Overall
7.9
Crew
8.5
Entertainment
7.8
Food
7.2
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
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.
Traveling to a place near Philadelphia?
Book flights to Philadelphia if you plan to visit one of these locationsWildwood
King of Prussia
Reading
Camden
Ocean City
Cherry Hill
Lewes
Dewey Beach
Pottstown
Ephrata
Milford
Plymouth Meeting
Wildwood Crest
Dover
Elkton
Essington
Willow Grove
New Castle
Millville
Vineland
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
Alternative routes
Complete your trip
Flights by cabin class
Other flight options
Other flights from Idaho Falls
Philadelphia flight routes
Popular flights
Alternative routes for Idaho Falls to Philadelphia
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Philadelphia by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Idaho Falls to Philadelphia by cabin class
Find flights from Idaho Falls to Philadelphia, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Idaho Falls and Philadelphia flights
Browse other Idaho Falls and Philadelphia flight options. Last updated on June 6, 2026.
Other flights from Idaho Falls
Browse through other flights departing from Idaho Falls. Flights are based on user searches made on Cheapflights and were last updated on June 6, 2026.
Other flights to Philadelphia
Explore flights to Philadelphia departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on June 6, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
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 June 6, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$259 | Average$419 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$418 | Average$1,075 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$475 | Average$634 | FlexibilityNo cancel fee | On-time71% |