How long is the flight from Philadelphia to Idaho Falls?

A quick flight from Philadelphia to Idaho Falls can take about 7h 29m. Delta provides one of the quickest options available for as low as $394. 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 $398, and United Airlines, from $496. You may be able to fly from Philadelphia to Idaho Falls for 51% less than the average price by searching for these airlines.

What is the cheapest day to fly from Philadelphia to Idaho Falls?

Travelers seeking maximum savings on their Philadelphia to Idaho Falls flight should consider departing on Thursday mornings when fares are most often at their lowest. Monday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

In terms of precipitation, rainfall in Idaho Falls ranges from 0.6 - 2.0 inches per month. May is typically the wettest month, when rainfall can reach 2.0 in. July is typically the driest time to visit Idaho Falls when rainfall is around 0.6 in.

If weather is an important factor for your trip to Idaho Falls, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 69.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 23.0 F).

What are the most popular airlines that fly from Philadelphia to Idaho Falls?

Consider American Airlines, Delta or United Airlines when booking your flight. These represent the most popular airlines when flying from Philadelphia to Idaho Falls.

What is the cheapest day to fly round-trip from Philadelphia to Idaho Falls?

Users have found that leaving on a Wednesday can be a cost-effective option. It’s possible to save up to 63% on your flight compared to booking on days when demand is much higher.

What is the cheapest month to fly from Philadelphia to Idaho Falls?

February can be a great time to fly to Idaho Falls from Philadelphia with a flight ticket averaging about $663. Cheapflights users have found deals in the month of February for as cheap as $354. The most expensive prices can be found in the month of May.

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

Unlike in the afternoon, when flights are generally more expensive, you can save up to 19% on flights from Philadelphia to Idaho Falls by exploring options for tickets at noon.

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.

$210+ Cheap Flights from Philadelphia to Idaho Falls

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Cheap flight deals from Philadelphia to Idaho Falls

Round-trip from	$388 (Alaska Airlines)
One-way from	$210 (American Airlines)
Popular in	May
Cheapest in	February
Average price	$600

From Philadelphia to Idaho Falls Fanning Field

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One-way flight from Philadelphia to Idaho Falls Fanning Field

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Highest demand for flights based on searches. 22% potential increase in price ($189 potential increase over avg. RT price).

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Cheapest flight prices on average. 4% potential price decrease ($30 potential savings vs. average RT price).

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Average for round-trip flights in September 2025

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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 September 11, 2025.

Thu 10/307:12 pmPHL - IDA

1 stop22h 01mAlaska Airlines

Sat 11/16:05 amIDA - PHL

1 stop10h 07mAlaska Airlines

Deal found 9/11

$388

Tue 11/117:10 amPHL - IDA

1 stop7h 29mDelta

Tue 11/186:57 pmIDA - PHL

2 stops12h 28mDelta

Deal found 9/10

$394

Thu 10/3011:45 amPHL - IDA

2 stops12h 04mAmerican Airlines

Sat 11/112:55 pmIDA - PHL

1 stop8h 51mAmerican Airlines

Deal found 9/10

$424

Thu 10/3012:40 pmPHL - IDA

2 stops10h 23mUnited Airlines

Sat 11/18:30 amIDA - PHL

2 stops10h 51mUnited Airlines

Deal found 9/10

$519

Wed 9/249:55 amPHL - IDA

1 stop9h 20mUnited Airlines

Thu 9/2510:50 amIDA - PHL

2 stops11h 55mUnited Airlines

Deal found 9/10

$525

Tue 9/239:55 amPHL - IDA

1 stop9h 28mUnited Airlines

Mon 9/292:35 pmIDA - PHL

1 stop6h 34mUnited Airlines

Deal found 9/10

$531

Mon 9/223:00 pmPHL - IDA

2 stops9h 48mUnited Airlines

Thu 9/252:35 pmIDA - PHL

1 stop6h 34mUnited Airlines

Deal found 9/11

$573

Best flights from Philadelphia to Idaho Falls
Discover carefully curated flight deals from Philadelphia to Idaho Falls that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 11, 2025.

Tue 11/117:10 amPHL - IDA

1 stop7h 29mDelta

Tue 11/186:57 pmIDA - PHL

2 stops12h 28mDelta

Deal found 9/10

$394

Thu 10/307:12 pmPHL - IDA

1 stop22h 01mAlaska Airlines

Sat 11/13:50 pmIDA - PHL

1 stop12h 50mAlaska Airlines

Deal found 9/10

$403

Thu 10/3011:45 amPHL - IDA

2 stops12h 04mAmerican Airlines

Sat 11/112:55 pmIDA - PHL

1 stop8h 51mAmerican Airlines

Deal found 9/10

$424

Tue 3/1010:10 amPHL - IDA

2 stops9h 12mUnited Airlines

Wed 3/1110:45 amIDA - PHL

2 stops11h 47mUnited Airlines

Deal found 9/9

$519

Tue 3/107:00 amPHL - IDA

1 stop7h 31mDelta

Wed 3/111:05 pmIDA - PHL

1 stop8h 11mDelta

Deal found 9/9

$419

Thu 10/3012:40 pmPHL - IDA

2 stops10h 23mUnited Airlines

Sat 11/18:30 amIDA - PHL

2 stops10h 51mUnited Airlines

Deal found 9/10

$519

Wed 9/2410:10 amPHL - IDA

2 stops12h 46mUnited Airlines

Thu 9/2510:50 amIDA - PHL

2 stops11h 55mUnited Airlines

Deal found 9/10

$530

Last-minute flights from Philadelphia to Idaho Falls
Discover last-minute flight deals from Philadelphia to Idaho Falls. Data last updated September 11, 2025 and is based on user searches.

Fri 9/193:35 pmPHL - IDA

1 stop7h 50mAmerican Airlines

Mon 9/221:35 pmIDA - PHL

1 stop9h 57mAmerican Airlines

Deal found 9/10

$631

Mon 9/223:00 pmPHL - IDA

2 stops9h 48mUnited Airlines

Thu 9/252:35 pmIDA - PHL

1 stop6h 34mUnited Airlines

Deal found 9/11

$573

Tue 9/239:55 amPHL - IDA

1 stop9h 28mUnited Airlines

Mon 9/292:35 pmIDA - PHL

1 stop6h 34mUnited Airlines

Deal found 9/10

$531

Wed 9/249:55 amPHL - IDA

1 stop9h 20mUnited Airlines

Thu 9/2510:50 amIDA - PHL

2 stops11h 55mUnited Airlines

Deal found 9/10

$525

Fri 9/263:35 pmPHL - IDA

1 stop7h 50mAmerican Airlines

Sat 9/276:44 amIDA - PHL

2 stops14h 33mAmerican Airlines

Deal found 9/11

$636

Thu 10/307:12 pmPHL - IDA

1 stop22h 01mAlaska Airlines

Sat 11/16:05 amIDA - PHL

1 stop10h 07mAlaska Airlines

Deal found 9/11

$388

Thu 10/3011:45 amPHL - IDA

2 stops12h 04mAmerican Airlines

Sat 11/112:55 pmIDA - PHL

1 stop8h 51mAmerican Airlines

Deal found 9/10

$424

Thu 10/3012:40 pmPHL - IDA

2 stops10h 23mUnited Airlines

Sat 11/18:30 amIDA - PHL

2 stops10h 51mUnited Airlines

Deal found 9/10

$519

One-way flights from Philadelphia to Idaho Falls
Search for one-way flight options from Philadelphia to Idaho Falls. Find affordable one-way fares based on user searches. Data last updated September 11, 2025.

Sun 2/15:00 amPHL - IDA

1 stop9h 20mAmerican Airlines

Deal found 9/10

$210

Sun 2/17:55 pmPHL - IDA

2 stops21h 36mUnited Airlines

Deal found 9/10

$303

Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

PhiladelphiaIdaho Falls

PHL - IDA

PHLIDA

Philadelphia

Tue 11/11

7:10 am-12:39 pm

1 stop7h 29m

Idaho Falls Fanning Field

Tue 11/18

6:57 pm-9:25 am

2 stops12h 28m

$394

PhiladelphiaIdaho Falls

PHL - IDA

PHLIDA

Philadelphia

Thu 10/30

7:12 pm-3:13 pm

1 stop22h 01m

Idaho Falls Fanning Field

Sat 11/1

3:50 pm-6:40 am

1 stop12h 50m

$403

PhiladelphiaIdaho Falls

PHL - IDA

PHLIDA

Philadelphia

Tue 3/10

7:00 am-12:31 pm

1 stop7h 31m

Idaho Falls Fanning Field

Wed 3/11

1:05 pm-11:16 pm

1 stop8h 11m

$419

PhiladelphiaIdaho Falls

PHL - IDA

PHLIDA

Philadelphia

Thu 10/30

11:45 am-9:49 pm

2 stops12h 04m

Idaho Falls Fanning Field

Sat 11/1

12:55 pm-11:46 pm

1 stop8h 51m

$424

PhiladelphiaIdaho Falls

PHL - IDA

PHLIDA

Philadelphia

Tue 3/10

10:10 am-5:22 pm

2 stops9h 12m

Idaho Falls Fanning Field

Wed 3/11

10:45 am-12:32 am

2 stops11h 47m

$519

PhiladelphiaIdaho Falls

PHL - IDA

PHLIDA

Philadelphia

Thu 10/30

12:40 pm-9:03 pm

2 stops10h 23m

Idaho Falls Fanning Field

Sat 11/1

8:30 am-9:21 pm

2 stops10h 51m

$519

PhiladelphiaIdaho Falls

PHL - IDA

PHLIDA

Philadelphia

Wed 9/24

10:10 am-8:56 pm

2 stops12h 46m

Idaho Falls Fanning Field

Thu 9/25

10:50 am-12:45 am

2 stops11h 55m

$530

PhiladelphiaIdaho Falls

PHL - IDA

PHLIDA

Philadelphia

Sun 2/1

5:00 am-12:20 pm

1 stop9h 20m

$210

PhiladelphiaIdaho Falls

PHL - IDA

PHLIDA

Philadelphia

Sun 2/1

7:55 pm-3:31 pm

2 stops21h 36m

$303

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/10

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 $380). Flying from Philadelphia to Idaho Falls in December is currently the most expensive (average of $578). 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

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

8.0

Very good

7,960 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Delta

8.0

Very good

7,960 reviews

Delta

8.0

Very good

7,960 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

United Airlines

7.4

Good

8,937 reviews

Delta

8.0

Very good

7,960 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

American Airlines

7.2

Good

10,000 reviews

Delta

8.0

Very good

7,960 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Related info for your journey

How long is the flight from Philadelphia to Idaho Falls?
A quick flight from Philadelphia to Idaho Falls can take about 7h 29m. Delta provides one of the quickest options available for as low as $394. 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 $398, and United Airlines, from $496. You may be able to fly from Philadelphia to Idaho Falls for 51% 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 $380). Flying from Philadelphia to Idaho Falls in December is currently the most expensive (average of $578). 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

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Alternative routes for Philadelphia to Idaho Falls

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Top 3 airlines flying from Philadelphia to Idaho Falls

Airline	Cheapest	Average	Flexibility	On-time
Delta	Cheapest$324	Average$532	FlexibilityNo cancel fee	On-timeN/A
American Airlines	Cheapest$398	Average$601	FlexibilityNo cancel fee	On-time71%
United Airlines	Cheapest$496	Average$722	FlexibilityNo cancel fee	On-time69%

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$210+ 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 2/1. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Philadelphia to Idaho Falls with Cheapflights

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Cheap flight deals from Philadelphia to Idaho Falls

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Philadelphia to Idaho Falls

Cheapest flights from Philadelphia to Idaho FallsExplore 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 September 11, 2025.

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 September 11, 2025.

Cheapflights Fare Finder

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

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.

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?

Reviews of airlines servicing Idaho Falls

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.

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?

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

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

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

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

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

Traveling to a place near Idaho Falls?

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Alternative routes for Philadelphia to Idaho Falls

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Top 3 airlines flying from Philadelphia to Idaho Falls

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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 September 11, 2025.