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Cheap flights from Philadelphia to Idaho from $138

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Philadelphia to Idaho departing on 10/9. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from Philadelphia to Idaho

Cheap round-trip flights

American Airlines Logo
8:55 am - 4:07 pmPHL-JAC
9h 12m1 stop
American Airlines Logo
12:58 pm - 12:18 amJAC-PHL
9h 20m1 stop
$241American Airlines
Find Deal
Thu, Sep 4 - Wed, Sep 10
Delta Logo
7:00 am - 2:47 pmPHL-JAC
9h 47m1 stop
Delta Logo
7:30 am - 5:38 pmJAC-PHL
8h 08m1 stop
$257Delta
Find Deal
Wed, Oct 29 - Wed, Nov 5
Delta Logo
11:49 am - 6:15 pmPHL-JAC
8h 26m2 stops
Delta Logo
6:55 pm - 5:45 amJAC-PHL
8h 50m1 stop
$262Delta
Find Deal
Wed, Oct 29 - Thu, Nov 6
Frontier Logo
6:45 am - 11:37 amPHL-BOI
6h 52m1 stop
Frontier Logo
12:22 pm - 12:57 amBOI-PHL
10h 35m1 stop
$275Frontier
Find Deal
Thu, Sep 25 - Sun, Sep 28
Frontier Logo
6:19 am - 11:08 amPHL-GEG
7h 49m1 stop
Frontier Logo
12:08 pm - 4:49 amGEG-PHL
13h 41m1 stop
$278Frontier
Find Deal
Thu, Nov 13 - Sun, Nov 16
American Airlines Logo
7:38 am - 12:22 pmPHL-GEG
7h 44m1 stop
American Airlines Logo
6:00 am - 7:19 pmGEG-PHL
10h 19m1 stop
$323American Airlines
Find Deal
Sun, Aug 31 - Sat, Sep 6
United Airlines Logo
3:40 pm - 9:03 pmPHL-GEG
8h 23m1 stop
United Airlines Logo
5:15 am - 9:31 pmGEG-PHL
13h 16m2 stops
$328United Airlines
Find Deal
Sun, Aug 31 - Sat, Sep 6
United Airlines Logo
10:10 am - 9:03 pmPHL-GEG
13h 53m2 stops
United Airlines Logo
5:15 am - 9:31 pmGEG-PHL
13h 16m2 stops
$333United Airlines
Find Deal
Sun, Aug 31 - Sat, Sep 6
Southwest Logo
3:20 pm - 11:55 pmPHL-GEG
11h 35m2 stops
Southwest Logo
5:50 am - 3:25 pmGEG-PHL
6h 35m1 stop
$336Southwest
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Thu, Nov 13 - Sun, Nov 16
Southwest Logo
3:20 pm - 11:55 pmPHL-GEG
11h 35m2 stops
Southwest Logo
5:00 am - 7:20 pmGEG-PHL
11h 20m2 stops
$341Southwest
Find Deal
Thu, Nov 13 - Sun, Nov 16

American Airlines flights from Philadelphia to Idaho

Our best American Airlines deals on Philadelphia to Idaho flight tickets
American Airlines
Sep 4
PHL8:55 amPhiladelphia
9h 12m
1 stop
JAC4:07 pmJackson Hole
Sep 10
JAC12:58 pmJackson Hole
9h 20m
1 stop
PHL12:18 amPhiladelphia
$241
Find similar
American Airlines
Aug 31
PHL7:38 amPhiladelphia
7h 44m
1 stop
GEG12:22 pmSpokane
Sep 6
GEG6:00 amSpokane
10h 19m
1 stop
PHL7:19 pmPhiladelphia
$323
Find similar
American Airlines
Sep 4
PHL8:55 amPhiladelphia
9h 12m
1 stop
JAC4:07 pmJackson Hole
Sep 10
JAC4:18 pmJackson Hole
6h 52m
1 stop
PHL1:10 amPhiladelphia
$325
Find similar

Delta flights from Philadelphia to Idaho

Our best Delta deals on Philadelphia to Idaho flight tickets
Delta
Oct 29
PHL7:00 amPhiladelphia
9h 47m
1 stop
JAC2:47 pmJackson Hole
Nov 5
JAC7:30 amJackson Hole
8h 08m
1 stop
PHL5:38 pmPhiladelphia
$257
Find similar
Delta
Oct 29
PHL11:49 amPhiladelphia
8h 26m
2 stops
JAC6:15 pmJackson Hole
Nov 6
JAC6:55 pmJackson Hole
8h 50m
1 stop
PHL5:45 amPhiladelphia
$262
Find similar
Delta
Oct 29
PHL11:49 amPhiladelphia
8h 26m
2 stops
JAC6:15 pmJackson Hole
Nov 5
JAC1:00 pmJackson Hole
9h 52m
2 stops
PHL12:52 amPhiladelphia
$267
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Philadelphia to Idaho 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, momondo users made 832,500 searches. Data last updated July 31, 2025.
Use the filters below to find and compare flights from Philadelphia to Idaho that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

PhiladelphiaJackson

PHL - JAC

PHLJAC

Philadelphia

Thu 9/4

8:55 am-4:07 pm

1 stop9h 12m

Jackson Hole

Wed 9/10

12:58 pm-12:18 am

1 stop9h 20m

$241

PhiladelphiaJackson

PHL - JAC

PHLJAC

Philadelphia

Wed 10/29

7:00 am-2:47 pm

1 stop9h 47m

Jackson Hole

Wed 11/5

7:30 am-5:38 pm

1 stop8h 08m

$257

PhiladelphiaJackson

PHL - JAC

PHLJAC

Philadelphia

Wed 10/29

11:49 am-6:15 pm

2 stops8h 26m

Jackson Hole

Thu 11/6

6:55 pm-5:45 am

1 stop8h 50m

$262

PhiladelphiaBoise

PHL - BOI

PHLBOI

Philadelphia

Thu 9/25

6:45 am-11:37 am

1 stop6h 52m

Boise Air Term. Gowen Fld

Sun 9/28

12:22 pm-12:57 am

1 stop10h 35m

$275

PhiladelphiaSpokane

PHL - GEG

PHLGEG

Philadelphia

Thu 11/13

6:19 am-11:08 am

1 stop7h 49m

Spokane

Sun 11/16

12:08 pm-4:49 am

1 stop13h 41m

$278

PhiladelphiaSpokane

PHL - GEG

PHLGEG

Philadelphia

Sun 8/31

7:38 am-12:22 pm

1 stop7h 44m

Spokane

Sat 9/6

6:00 am-7:19 pm

1 stop10h 19m

$323

PhiladelphiaSpokane

PHL - GEG

PHLGEG

Philadelphia

Sun 8/31

3:40 pm-9:03 pm

1 stop8h 23m

Spokane

Sat 9/6

5:15 am-9:31 pm

2 stops13h 16m

$328

PhiladelphiaSpokane

PHL - GEG

PHLGEG

Philadelphia

Sun 8/31

10:10 am-9:03 pm

2 stops13h 53m

Spokane

Sat 9/6

5:15 am-9:31 pm

2 stops13h 16m

$333

PhiladelphiaSpokane

PHL - GEG

PHLGEG

Philadelphia

Thu 11/13

3:20 pm-11:55 pm

2 stops11h 35m

Spokane

Sun 11/16

5:50 am-3:25 pm

1 stop6h 35m

$336

PhiladelphiaSpokane

PHL - GEG

PHLGEG

Philadelphia

Thu 11/13

3:20 pm-11:55 pm

2 stops11h 35m

Spokane

Sun 11/16

5:00 am-7:20 pm

2 stops11h 20m

$341

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Idaho from

How to get the cheapest flight ticket from Philadelphia to Idaho

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Idaho?

In general, August is the cheapest month to fly from Philadelphia to Idaho. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $387. If you don’t want to visit Idaho in August, then you should wait until September to fly from Philadelphia, when ticket prices are also cheap, with an average price of $392.

What is the cheapest day to depart on your flight to Idaho?

Our data shows that Tuesday is the least expensive day to fly to Idaho. Tickets to fly out on this day can be as low as $421. On the other hand, Sunday is the most expensive day to depart from Philadelphia because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $618.

What is the cheapest time of day to depart on your flight to Idaho?

According to our data, the cheapest time of day to fly to Idaho is at noon. momondo users have found flights departing from Philadelphia to Idaho at noon for as low as $302. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. In the evening is when there is more demand to fly to Idaho, so prices are often more expensive at around $655 per ticket.

How far in advance should I book a flight to Idaho?

You are more likely to see cheaper flights to Idaho from Philadelphia when booking weeks ahead of your departure date. In general, you can expect to find flights to Idaho for around $489 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Idaho from Philadelphia for as low as $388 on momondo.

Can stopping save me money on Philadelphia to Idaho flights?

You could potentially save up to 26% on your flight if you consider stops on a Philadelphia to Idaho flight.

Cheap Philadelphia to Idaho flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Philadelphia to Idaho

Best Price Found

$138

Fastest flight time

6h 29m

Direct flights

None

Airports in Idaho

7 airports
The best one-way flight to Idaho from Philadelphia in the past 72 hours is $138. The best round-trip flight deal from Philadelphia to Idaho found on momondo in the last 72 hours is $241.
The fastest flight from Philadelphia to Idaho takes 6h 29m
There are no direct flights from Philadelphia to Idaho. Popular non-direct routes for this connection are Philadelphia Airport - Spokane Airport, Philadelphia Airport - Jackson Hole Airport and Philadelphia Airport - Boise Air Term. Gowen Fld Airport.
There are 7 airports near Idaho: West Yellowstone (WYS), Idaho Falls Fanning Field (IDA), Spokane (GEG), Boise Air Term. Gowen Fld (BOI), Jackson Hole (JAC), Hailey Sun Valley-Friedman (SUN), Pocatello (PIH)
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  • When did momondo last update prices for flights from Philadelphia Airport to Idaho?

    Prices for flights from Philadelphia Airport to Idaho are updated daily.

  • How many operators does momondo search for flights from Philadelphia Airport to Idaho?

  • How old do you have to be to fly from Philadelphia Airport to Idaho?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Philadelphia Airport to Idaho.

  • What documentation or ID do you need to fly to Idaho?

    The necessary travel and health documents for your Idaho trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Best airlines flying from Philadelphia to Idaho

Compare and see reviews for airlines that fly from Philadelphia to Idaho with momondo
Airline
Rating
Free Cancellation
Price
DeltaPriceFrom $324Free CancellationRating
8.0
7,981 reviews
Search Delta flights
American AirlinesPriceFrom $336Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
SouthwestPriceFrom $362Free CancellationRating
8.0
4,246 reviews
Search Southwest flights
United AirlinesPriceFrom $429Free CancellationRating
7.4
8,900 reviews
Search United Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from Philadelphia to Idaho?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Philadelphia to Idaho. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Philadelphia to Idaho with flexible booking policies on momondo?

Flights from Philadelphia to Idaho with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Philadelphia to Idaho?

momondo provides multiple filters to help you find the best flight to Idaho from Philadelphia. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from Philadelphia to Idaho right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Philadelphia to Idaho flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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