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Idaho Falls

$161+ 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 8/17. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — IDA
jun. 17 — jun. 241
mar. 6/17
mar. 6/24
1 adult, Economy
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Cheap flight deals from Philadelphia to Idaho Falls

Discover tips and strategies to find the most affordable flight options for your journey from Philadelphia (PHL) to Idaho Falls (IDA). 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 junio 12, 2025.

Round-trip from

$361
(Mytrip)

One-way from

$161
(Mytrip)

Popular in

May

Cheapest in

February

Average price

$733
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. 20% potential increase in price ($173 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($29 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 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 junio 12, 2025.

This Mytrip deal was found by Cheapflights users on 6/11. 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.
jue. 6/2610:42 amPHL - IDA
1 stop27h 03mMultiple Airlines
lun. 6/306:17 pmIDA - PHL
2 stops13h 30mMultiple Airlines
Deal found 6/11$361
This Alaska Airlines deal was found by Cheapflights users on 6/10. 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.
jue. 10/306:55 pmPHL - IDA
1 stop22h 24mAlaska Airlines
sáb. 11/13:56 pmIDA - PHL
1 stop12h 44mAlaska Airlines
Deal found 6/10$398
This Delta deal was found by Cheapflights users on 6/12. 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.
sáb. 7/125:00 pmPHL - IDA
1 stop7h 29mDelta
mié. 7/166:52 pmIDA - PHL
1 stop8h 58mDelta
Deal found 6/12$399
This American Airlines deal was found by Cheapflights users on 6/10. 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.
mar. 8/121:43 pmPHL - IDA
2 stops9h 35mAmerican Airlines
jue. 8/2112:46 pmIDA - PHL
1 stop7h 51mAmerican Airlines
Deal found 6/10$455
This United Airlines deal was found by Cheapflights users on 6/10. 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.
jue. 10/3010:05 amPHL - IDA
2 stops12h 58mUnited Airlines
sáb. 11/110:50 amIDA - PHL
2 stops11h 25mUnited Airlines
Deal found 6/10$499

Cheapflights Fare Finder

Customize your flight search to find flights from Philadelphia to Idaho Falls 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 junio 12, 2025.
Use the filters below to find and compare flights from Philadelphia to Idaho Falls that are best for you.

Fly from

Philadelphia

Fly to

Idaho Falls

Route

Depart

Return

Price

PhiladelphiaIdaho Falls

PHL - IDA

PHLIDA

Philadelphia

jue. 6/26

10:42 am-11:45 am

1 stop27h 03m

Idaho Falls Fanning Field

lun. 6/30

6:17 pm-9:47 am

2 stops13h 30m

$361

PhiladelphiaIdaho Falls

PHL - IDA

PHLIDA

Philadelphia

jue. 10/30

6:55 pm-3:19 pm

1 stop22h 24m

Idaho Falls Fanning Field

sáb. 11/1

3:56 pm-6:40 am

1 stop12h 44m

$398

PhiladelphiaIdaho Falls

PHL - IDA

PHLIDA

Philadelphia

sáb. 7/12

5:00 pm-10:29 pm

1 stop7h 29m

Idaho Falls Fanning Field

mié. 7/16

6:52 pm-5:50 am

1 stop8h 58m

$399

PhiladelphiaIdaho Falls

PHL - IDA

PHLIDA

Philadelphia

mar. 8/12

1:43 pm-9:18 pm

2 stops9h 35m

Idaho Falls Fanning Field

jue. 8/21

12:46 pm-10:37 pm

1 stop7h 51m

$455

PhiladelphiaIdaho Falls

PHL - IDA

PHLIDA

Philadelphia

jue. 10/30

10:05 am-9:03 pm

2 stops12h 58m

Idaho Falls Fanning Field

sáb. 11/1

10:50 am-12:15 am

2 stops11h 25m

$499

PhiladelphiaIdaho Falls

PHL - IDA

PHLIDA

Philadelphia

dom. 8/17

6:30 am-11:30 am

1 stop31h 00m

$161

PhiladelphiaIdaho Falls

PHL - IDA

PHLIDA

Philadelphia

mié. 7/9

6:45 am-3:22 pm

1 stop10h 37m

$199

PhiladelphiaIdaho Falls

PHL - IDA

PHLIDA

Philadelphia

mié. 7/9

6:30 am-3:29 pm

2 stops10h 59m

$250

PhiladelphiaIdaho Falls

PHL - IDA

PHLIDA

Philadelphia

mar. 6/24

6:52 pm-3:22 pm

1 stop22h 30m

$458

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/10

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.

Rainfall in Idaho Falls by month

Plan your trip to Idaho Falls by taking into account the average rainfall totals by month.

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.

Temperature in Idaho Falls by month

Plan your trip to Idaho Falls by taking into account the average temperature totals by month.

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).

Reviews of airlines servicing Idaho Falls

Get insights into the airlines that provide service to Idaho Falls. 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 Idaho Falls. Reviews last updated junio 12, 2025.
Read through reviews of airlines operating flights from Philadelphia to Idaho Falls, such as Alaska Airlines, Delta and Hawaiian Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Comfort

7.8

Food

7.1

Overall

8.0

Entertainment

7.1

Crew

8.5

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

Boarding

8.1

Comfort

7.8

Food

7.1

Overall

8.0

Entertainment

7.1

Crew

8.5

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
7,950 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Comfort

7.8

Food

7.1

Overall

8.0

Entertainment

7.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Hawaiian Airlines
7.9
Good
2,494 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Comfort

7.8

Food

7.1

Overall

8.0

Entertainment

7.1

Crew

8.5

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
8,790 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Comfort

7.8

Food

7.1

Overall

8.0

Entertainment

7.1

Crew

8.5

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

Boarding

8.1

Comfort

7.8

Food

7.1

Overall

8.0

Entertainment

7.1

Crew

8.5

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 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.

  • 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 $398. Other airlines that can offer you cheap pricing are Delta, from $399, and American Airlines, from $455. You may be able to fly from Philadelphia to Idaho Falls for 41% less than the average price by searching for these airlines.

  • What are the cheapest airlines to fly from Philadelphia to Idaho Falls one-way?

    The cheapest airline one-way is Hawaiian Airlines, with whom users have recently found tickets for as low as $199. However, be on the lookout for offers from United Airlines and Alaska Airlines, as they are both options that can get you from Philadelphia to Idaho Falls for a low price.

  • 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

Traveling to a place near Philadelphia?

Book flights to Philadelphia if you plan to visit one of these locations
Rexburg

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Alternative routes for Philadelphia to Idaho Falls

See prices for flight routes from nearby airports that may be better suited for you.
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Top 3 airlines flying from Philadelphia to Idaho Falls

Discover the top 3 airlines that operate flights from Philadelphia to Idaho Falls. 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 junio 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$398Average$609FlexibilityNo cancel feeOn-time71%
DeltaCheapest$398Average$603FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$496Average$753FlexibilityNo cancel feeOn-time69%

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