$258+ Cheap flights from Idaho Falls to Philadelphia (IDA - PHL)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/16. Fares are subject to change and may not be available on all flights or dates of travel.
IDA — PHL
Nov 18 — Nov 251
Round-trip
1 adult, Economy
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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 October 19, 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 October 19, 2026.
This Delta deal was found by Cheapflights users on 10/18. 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 11/86:56 pm -
1 stop9h 04m
Sun 11/155:15 am -
2 stops9h 00m
Deal found 10/18![Delta logo]()
$384
This Alaska Airlines deal was found by Cheapflights users on 10/15. 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 11/76:04 am -
1 stop8h 41m
Wed 11/117:02 am -
1 stop10h 16m
Deal found 10/15![Alaska Airlines logo]()
$449
This United Airlines deal was found by Cheapflights users on 10/19. 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.
Tue 11/32:35 pm -
1 stop7h 04m
Sat 11/76:15 am -
2 stops9h 13m
Deal found 10/19![United Airlines logo]()
$454
This United Airlines deal was found by Cheapflights users on 10/14. 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 11/72:35 pm -
1 stop7h 04m
Wed 11/117:45 am -
1 stop7h 43m
Deal found 10/14![United Airlines logo]()
$499
This Delta deal was found by Cheapflights users on 10/18. 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 12/206:53 pm -
1 stop9h 02m
Thu 12/317:10 am -
1 stop17h 25m
Deal found 10/18![Delta logo]()
$533
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 October 19, 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 October 19, 2026.
This Delta deal was found by Cheapflights users on 10/19. 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 11/86:56 pm -
1 stop9h 04m
Sun 11/155:15 am -
2 stops9h 00m
Deal found 10/19![Delta logo]()
$419
This Alaska Airlines deal was found by Cheapflights users on 10/16. 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 11/76:04 am -
1 stop8h 41m
Wed 11/117:02 am -
1 stop10h 16m
Deal found 10/16![Alaska Airlines logo]()
$449
This United Airlines deal was found by Cheapflights users on 10/19. 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.
Tue 11/32:35 pm -
1 stop7h 04m
Sat 11/76:15 am -
2 stops9h 13m
Deal found 10/19![United Airlines logo]()
$454
This United Airlines deal was found by Cheapflights users on 10/14. 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 11/72:35 pm -
1 stop7h 04m
Wed 11/117:45 am -
1 stop7h 43m
Deal found 10/14![United Airlines logo]()
$499
Last-minute flights from Idaho Falls to PhiladelphiaDiscover last-minute flight deals from Idaho Falls to Philadelphia. Data last updated October 19, 2026 and is based on user searches.
Discover last-minute flight deals from Idaho Falls to Philadelphia. Data last updated October 19, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 10/19. 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.
Tue 11/32:35 pm -
1 stop7h 04m
Sat 11/76:15 am -
2 stops9h 13m
Deal found 10/19![United Airlines logo]()
$454
This Alaska Airlines deal was found by Cheapflights users on 10/15. 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 11/46:04 am -
1 stop8h 41m
Thu 11/127:02 am -
1 stop10h 16m
Deal found 10/15![Alaska Airlines logo]()
$546
This Alaska Airlines deal was found by Cheapflights users on 10/18. 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 11/76:04 am -
1 stop8h 41m
Wed 11/117:02 am -
1 stop10h 16m
Deal found 10/18![Alaska Airlines logo]()
$449
This United Airlines deal was found by Cheapflights users on 10/14. 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 11/72:35 pm -
1 stop7h 04m
Wed 11/117:45 am -
1 stop7h 43m
Deal found 10/14![United Airlines logo]()
$499
This Delta deal was found by Cheapflights users on 10/18. 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 11/86:56 pm -
1 stop9h 04m
Sun 11/155:15 am -
2 stops9h 00m
Deal found 10/18![Delta logo]()
$384
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 October 19, 2026.
Search for one-way flight options from Idaho Falls to Philadelphia. Find affordable one-way fares based on user searches. Data last updated October 19, 2026.
This deal was found by Cheapflights users on 10/15. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/162:35 pm -
1 stop7h 04m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/15![United Airlines logo]()
$258
This Travelocity deal was found by Cheapflights users on 10/18. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/191:53 pm -
1 stop13h 39m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/18![Alaska Airlines logo]()
$295
This United Airlines deal was found by Cheapflights users on 10/15. 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.
Thu 11/1910:35 am -
2 stops10h 34m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/15![United Airlines logo]()
$359
This Kiwi.com deal was found by Cheapflights users on 10/18. 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.
Thu 11/1912:01 pm -
3 stops35h 05m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/18![Multiple Airlines logo]()
$507
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 October 19, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $384 (Delta) |
One-way from | $258 |
Popular in | December |
Cheapest in | April |
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 7,457,451 searches. Data last updated October 19, 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
Quickest round-trip
Idaho FallsPhiladelphia
IDA Idaho Falls Fanning Field - PHL Philadelphia
IDAPHL
Idaho Falls Fanning Field
Mon 11/16
2:35 pm-11:39 pm
1 stop7h 04m
Philadelphia
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$258
Idaho FallsPhiladelphia
IDA Idaho Falls Fanning Field - PHL Philadelphia
IDAPHL
Idaho Falls Fanning Field
Thu 11/19
1:53 pm-5:32 am
1 stop13h 39m
Philadelphia
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$295
Idaho FallsPhiladelphia
IDA Idaho Falls Fanning Field - PHL Philadelphia
IDAPHL
Idaho Falls Fanning Field
Thu 11/19
10:35 am-11:09 pm
2 stops10h 34m
Philadelphia
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$359
Idaho FallsPhiladelphia
IDA Idaho Falls Fanning Field - PHL Philadelphia
IDAPHL
Idaho Falls Fanning Field
Sun 11/8
6:56 pm-6:00 am
1 stop9h 04m
Philadelphia
Sun 11/15
5:15 am-12:15 pm
2 stops9h 00m
$419
Idaho FallsPhiladelphia
IDA Idaho Falls Fanning Field - PHL Philadelphia
IDAPHL
Idaho Falls Fanning Field
Sat 11/7
6:04 am-4:45 pm
1 stop8h 41m
Philadelphia
Wed 11/11
7:02 am-3:18 pm
1 stop10h 16m
$449
Idaho FallsPhiladelphia
IDA Idaho Falls Fanning Field - PHL Philadelphia
IDAPHL
Idaho Falls Fanning Field
Tue 11/3
2:35 pm-11:39 pm
1 stop7h 04m
Philadelphia
Sat 11/7
6:15 am-1:28 pm
2 stops9h 13m
$454
Idaho FallsPhiladelphia
IDA Idaho Falls Fanning Field - PHL Philadelphia
IDAPHL
Idaho Falls Fanning Field
Sat 11/7
2:35 pm-11:39 pm
1 stop7h 04m
Philadelphia
Wed 11/11
7:45 am-1:28 pm
1 stop7h 43m
$499
Idaho FallsPhiladelphia
IDA Idaho Falls Fanning Field - PHL Philadelphia
IDAPHL
Idaho Falls Fanning Field
Thu 11/19
12:01 pm-1:06 am
3 stops35h 05m
Philadelphia
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$507
Sorted 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 October.
| 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.
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 October 19, 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
Overall
7.8
Entertainment
7.8
Food
7.2
Comfort
7.8
Crew
8.5
Reviews
1 / 20
6.0
GoodEllen,Oct 2026
GRR - ATL
Boarding
8.1
Overall
7.8
Entertainment
7.8
Food
7.2
Comfort
7.8
Crew
8.5
Reviews
1 / 20
6.0
GoodEllen,Oct 2026
GRR - ATL
Boarding
8.1
Overall
7.8
Entertainment
7.8
Food
7.2
Comfort
7.8
Crew
8.5
Reviews
1 / 20
6.0
GoodEllen,Oct 2026
GRR - ATL
Boarding
8.1
Overall
7.8
Entertainment
7.8
Food
7.2
Comfort
7.8
Crew
8.5
Reviews
1 / 20
6.0
GoodEllen,Oct 2026
GRR - ATL
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
Dover
Ocean City
Wildwood Crest
Cherry Hill
Lewes
Plymouth Meeting
Wyomissing
Pottstown
Milford
Ephrata
Elkton
Essington
New Castle
Willow Grove
Glen Mills
Vineland
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Idaho Falls and Philadelphia flights
Browse other Idaho Falls and Philadelphia flight options. Last updated on October 19, 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 October 19, 2026.
Other flights to Philadelphia
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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 7,457,451 searches. Data last updated October 19, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$354 | Average$389 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$418 | Average$1,075 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$508 | Average$665 | FlexibilityNo cancel fee | On-time71% |