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$255+ 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 9/7. Fares are subject to change and may not be available on all flights or dates of travel.
IDA — PHL
Jul 5 — Jul 121
Sat 7/5
Sat 7/12
1 adult, Economy
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Cheap 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 30, 2025.

Round-trip from

$398
(Hawaiian Airlines)

One-way from

$255
(Delta)

Popular in

December

Cheapest in

April

Average price

$685
From Idaho Falls Fanning Field to Philadelphia
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One-way flight from Idaho Falls Fanning Field to Philadelphia
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Highest demand for flights based on searches. 21% potential increase in price ($180 potential increase over avg. RT price).
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Cheapest flight prices on average. 8% potential price decrease ($53 potential savings vs. average RT price).
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Average for round-trip flights in June 2025
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Find 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 June 30, 2025.

This Hawaiian Airlines deal was found by Cheapflights users on 6/30. 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 Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/126:05 amIDA - PHL
1 stop9h 45mHawaiian Airlines
Mon 11/177:00 amPHL - IDA
1 stop10h 19mHawaiian Airlines
Deal found 6/30$398
This Delta deal was found by Cheapflights users on 6/28. 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.
Sat 8/26:52 pmIDA - PHL
1 stop8h 58mDelta
Sat 8/97:10 amPHL - IDA
1 stop9h 07mDelta
Deal found 6/28$399
This American Airlines deal was found by Cheapflights users on 6/28. 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.
Wed 8/277:00 amIDA - PHL
1 stop8h 31mAmerican Airlines
Wed 9/31:10 pmPHL - IDA
2 stops10h 15mAmerican Airlines
Deal found 6/28$404
This Alaska Airlines deal was found by Cheapflights users on 6/30. 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 10/86:13 amIDA - PHL
1 stop21h 27mAlaska Airlines
Sat 10/117:00 amPHL - IDA
1 stop10h 38mAlaska Airlines
Deal found 6/30$440
This United Airlines deal was found by Cheapflights users on 6/29. 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 10/87:00 amIDA - PHL
2 stops8h 35mUnited Airlines
Sat 10/1110:00 amPHL - IDA
1 stop9h 18mUnited Airlines
Deal found 6/29$545
This Mytrip deal was found by Cheapflights users on 6/30. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/29:34 pmIDA - PHL
3 stops35h 36mMultiple Airlines
Sat 8/92:05 pmPHL - IDA
3 stops28h 59mMultiple Airlines
Deal found 6/30$643

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 30, 2025.
Use the filters below to find and compare flights from Idaho Falls to Philadelphia that are best for you.

Fly from

Idaho Falls

Fly to

Philadelphia

Route

Depart

Return

Price

Idaho FallsPhiladelphia

IDA - PHL

IDAPHL

Idaho Falls Fanning Field

Wed 11/12

6:05 am-5:50 pm

1 stop9h 45m

Philadelphia

Mon 11/17

7:00 am-3:19 pm

1 stop10h 19m

$398

Idaho FallsPhiladelphia

IDA - PHL

IDAPHL

Idaho Falls Fanning Field

Sat 8/2

6:52 pm-5:50 am

1 stop8h 58m

Philadelphia

Sat 8/9

7:10 am-2:17 pm

1 stop9h 07m

$399

Idaho FallsPhiladelphia

IDA - PHL

IDAPHL

Idaho Falls Fanning Field

Wed 8/27

7:00 am-5:31 pm

1 stop8h 31m

Philadelphia

Wed 9/3

1:10 pm-9:25 pm

2 stops10h 15m

$404

Idaho FallsPhiladelphia

IDA - PHL

IDAPHL

Idaho Falls Fanning Field

Wed 10/8

6:13 am-5:40 am

1 stop21h 27m

Philadelphia

Sat 10/11

7:00 am-3:38 pm

1 stop10h 38m

$440

Idaho FallsPhiladelphia

IDA - PHL

IDAPHL

Idaho Falls Fanning Field

Wed 10/8

7:00 am-5:35 pm

2 stops8h 35m

Philadelphia

Sat 10/11

10:00 am-5:18 pm

1 stop9h 18m

$545

Idaho FallsPhiladelphia

IDA - PHL

IDAPHL

Idaho Falls Fanning Field

Sat 8/2

9:34 pm-11:10 am

3 stops35h 36m

Philadelphia

Sat 8/9

2:05 pm-5:04 pm

3 stops28h 59m

$643

Idaho FallsPhiladelphia

IDA - PHL

IDAPHL

Idaho Falls Fanning Field

Sun 9/7

6:52 pm-5:45 am

1 stop8h 53m

$255

Idaho FallsPhiladelphia

IDA - PHL

IDAPHL

Idaho Falls Fanning Field

Sun 9/7

5:00 am-10:26 pm

3 stops15h 26m

$714

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/29

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, August is the cheapest month in which you can book a flight from Idaho Falls to Philadelphia (average of $236). Flying from Idaho Falls to Philadelphia in March is currently the most expensive (average of $295). 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.

What is the cheapest time of day to fly from IDA to PHL?

Find hourly flight availability from Idaho Falls to Philadelphia. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated June 30, 2025.

A simple way to save on the total cost of your ticket is to fly from Idaho Falls to Philadelphia at noon. If you’re flexible enough to do this you can expect to save up to 41% on your trip compared to booking a flight in the morning.

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 30, 2025.
Read reviews from past customers who have flown Alaska Airlines, Delta, and Hawaiian 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.
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Comfort

7.8

Boarding

8.1

Entertainment

7.1

Crew

8.5

Food

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Comfort

7.8

Boarding

8.1

Entertainment

7.1

Crew

8.5

Food

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Delta
8.0
Very good
7,969 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Comfort

7.8

Boarding

8.1

Entertainment

7.1

Crew

8.5

Food

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Hawaiian Airlines
7.8
Good
2,533 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Comfort

7.8

Boarding

8.1

Entertainment

7.1

Crew

8.5

Food

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
United Airlines
7.4
Good
8,852 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Comfort

7.8

Boarding

8.1

Entertainment

7.1

Crew

8.5

Food

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Comfort

7.8

Boarding

8.1

Entertainment

7.1

Crew

8.5

Food

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

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.

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

    Currently priced at $398, Hawaiian Airlines will fly you from Idaho Falls to Philadelphia and back. In addition to Hawaiian Airlines, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Delta and American Airlines - these airlines can fly you to your destination from $399 and $404, respectively. These flights start at 39% 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, August is the cheapest month in which you can book a flight from Idaho Falls to Philadelphia (average of $236). Flying from Idaho Falls to Philadelphia in March is currently the most expensive (average of $295). 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
Vineland
Wildwood
King of Prussia
Cherry Hill
Pottstown
Ocean City
Chester
Essington
Exton
Reading
Newark
Millville
Ephrata
Camden
Dover
Elkton
Willow Grove
Glen Mills
Springfield
Phoenixville

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Alternative routes for Idaho Falls to Philadelphia

See prices for flight routes from nearby airports that may be better suited for you.
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Top 2 airlines flying from Idaho Falls to Philadelphia

Discover the top 2 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 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$454Average$646FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$502Average$785FlexibilityNo cancel feeOn-time69%

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