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Cheap flights from Philadelphia to Idaho from $167

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 2/14. 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

Enter your travel dates to find the best prices.
Delta Logo
6:55 am - 1:30 pmPHL-JAC
8h 35m1 stop
Delta Logo
2:40 pm - 12:21 amJAC-PHL
7h 41m1 stop
$239Delta
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Sat, Jan 24 - Sat, Jan 31
Delta Logo
6:55 am - 1:30 pmPHL-JAC
8h 35m1 stop
Delta Logo
12:58 pm - 12:21 amJAC-PHL
9h 23m2 stops
$244Delta
Find Deal
Sat, Jan 24 - Sat, Jan 31
American Airlines Logo
7:00 am - 5:01 pmPHL-JAC
12h 01m2 stops
American Airlines Logo
5:36 pm - 7:01 amJAC-PHL
11h 25m1 stop
$261American Airlines
Find Deal
Sun, Feb 1 - Fri, Feb 6
Frontier Logo
8:00 am - 11:59 amPHL-BOI
29h 59m2 stops
Frontier Logo
1:30 pm - 5:31 amBOI-PHL
14h 01m1 stop
$319Frontier
Find Deal
Wed, Feb 25 - Sun, Mar 8
Alaska Airlines Logo
6:20 pm - 10:40 pmPHL-BOI
30h 20m1 stop
Alaska Airlines Logo
6:00 pm - 5:20 pmBOI-PHL
21h 20m1 stop
$324Alaska Airlines
Find Deal
Thu, Feb 26 - Thu, Mar 5
Alaska Airlines Logo
7:06 pm - 12:44 pmPHL-GEG
20h 38m1 stop
Alaska Airlines Logo
7:30 am - 6:03 pmGEG-PHL
7h 33m1 stop
$325Alaska Airlines
Find Deal
Sat, Jan 24 - Sat, Jan 31
United Airlines Logo
6:32 am - 11:56 amPHL-SUN
7h 24m1 stop
United Airlines Logo
2:32 pm - 11:30 pmSUN-PHL
6h 58m1 stop
$341United Airlines
Find Deal
Mon, Feb 23 - Fri, Feb 27
Frontier Logo
5:30 am - 11:59 amPHL-BOI
32h 29m2 stops
Frontier Logo
1:30 pm - 5:31 amBOI-PHL
14h 01m1 stop
$347Frontier
Find Deal
Thu, Feb 26 - Sun, Mar 8
United Airlines Logo
9:55 am - 10:02 pmPHL-SUN
14h 07m2 stops
United Airlines Logo
7:50 am - 12:06 amSUN-PHL
14h 16m2 stops
$365United Airlines
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Sat, Mar 14 - Sat, Mar 21
American Airlines Logo
7:17 am - 12:46 pmPHL-SUN
7h 29m1 stop
American Airlines Logo
1:16 pm - 11:55 pmSUN-PHL
8h 39m1 stop
$414American Airlines
Find Deal
Tue, Feb 3 - Sun, Feb 8

Frontier flights from Philadelphia to Idaho

Our best Frontier deals on Philadelphia to Idaho flight tickets
Frontier
Feb 25
PHL8:00 amPhiladelphia
29h 59m
2 stops
BOI11:59 amBoise Air Term. Gowen Fld
Mar 8
BOI1:30 pmBoise Air Term. Gowen Fld
14h 01m
1 stop
PHL5:31 amPhiladelphia
$319
Find similar
Frontier
Feb 26
PHL5:30 amPhiladelphia
32h 29m
2 stops
BOI11:59 amBoise Air Term. Gowen Fld
Mar 8
BOI1:30 pmBoise Air Term. Gowen Fld
14h 01m
1 stop
PHL5:31 amPhiladelphia
$347
Find similar
Frontier
Feb 28
PHL8:00 pmPhiladelphia
17h 59m
2 stops
BOI11:59 amBoise Air Term. Gowen Fld
Mar 8
BOI1:30 pmBoise Air Term. Gowen Fld
14h 01m
1 stop
PHL5:31 amPhiladelphia
$362
Find similar

Alaska Airlines flights from Philadelphia to Idaho

Our best Alaska Airlines deals on Philadelphia to Idaho flight tickets
Alaska Airlines
Feb 26
PHL6:20 pmPhiladelphia
30h 20m
1 stop
BOI10:40 pmBoise Air Term. Gowen Fld
Mar 5
BOI6:00 pmBoise Air Term. Gowen Fld
21h 20m
1 stop
PHL5:20 pmPhiladelphia
$324
Find similar
Alaska Airlines
Feb 27
PHL6:20 pmPhiladelphia
17h 20m
1 stop
BOI9:40 amBoise Air Term. Gowen Fld
Mar 9
BOI8:27 pmBoise Air Term. Gowen Fld
18h 55m
1 stop
PHL5:22 pmPhiladelphia
$325
Find similar
Alaska Airlines
Jan 23
PHL7:06 pmPhiladelphia
8h 17m
1 stop
GEG12:23 amSpokane
Jan 30
GEG6:00 pmSpokane
21h 03m
1 stop
PHL6:03 pmPhiladelphia
$344
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 November 30, 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

Sat 1/24

6:55 am-1:30 pm

1 stop8h 35m

Jackson Hole

Sat 1/31

2:40 pm-12:21 am

1 stop7h 41m

$239

PhiladelphiaJackson

PHL - JAC

PHLJAC

Philadelphia

Sat 1/24

6:55 am-1:30 pm

1 stop8h 35m

Jackson Hole

Sat 1/31

12:58 pm-12:21 am

2 stops9h 23m

$244

PhiladelphiaJackson

PHL - JAC

PHLJAC

Philadelphia

Sun 2/1

7:00 am-5:01 pm

2 stops12h 01m

Jackson Hole

Fri 2/6

5:36 pm-7:01 am

1 stop11h 25m

$261

PhiladelphiaBoise

PHL - BOI

PHLBOI

Philadelphia

Wed 2/25

8:00 am-11:59 am

2 stops29h 59m

Boise Air Term. Gowen Fld

Sun 3/8

1:30 pm-5:31 am

1 stop14h 01m

$319

PhiladelphiaBoise

PHL - BOI

PHLBOI

Philadelphia

Thu 2/26

6:20 pm-10:40 pm

1 stop30h 20m

Boise Air Term. Gowen Fld

Thu 3/5

6:00 pm-5:20 pm

1 stop21h 20m

$324

PhiladelphiaSpokane

PHL - GEG

PHLGEG

Philadelphia

Sat 1/24

7:06 pm-12:44 pm

1 stop20h 38m

Spokane

Sat 1/31

7:30 am-6:03 pm

1 stop7h 33m

$325

PhiladelphiaHailey

PHL - SUN

PHLSUN

Philadelphia

Mon 2/23

6:32 am-11:56 am

1 stop7h 24m

Hailey Sun Valley-Friedman

Fri 2/27

2:32 pm-11:30 pm

1 stop6h 58m

$341

PhiladelphiaBoise

PHL - BOI

PHLBOI

Philadelphia

Thu 2/26

5:30 am-11:59 am

2 stops32h 29m

Boise Air Term. Gowen Fld

Sun 3/8

1:30 pm-5:31 am

1 stop14h 01m

$347

PhiladelphiaHailey

PHL - SUN

PHLSUN

Philadelphia

Sat 3/14

9:55 am-10:02 pm

2 stops14h 07m

Hailey Sun Valley-Friedman

Sat 3/21

7:50 am-12:06 am

2 stops14h 16m

$365

PhiladelphiaHailey

PHL - SUN

PHLSUN

Philadelphia

Tue 2/3

7:17 am-12:46 pm

1 stop7h 29m

Hailey Sun Valley-Friedman

Sun 2/8

1:16 pm-11:55 pm

1 stop8h 39m

$414

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, September 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 $359. If you don’t want to visit Idaho in September, then you should wait until August to fly from Philadelphia, when ticket prices are also cheap, with an average price of $365.

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 $470 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 $393 on momondo.

Can stopping save me money on Philadelphia to Idaho flights?

You could potentially save up to 16% 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

Fastest flight time

6h 49m

Direct flights

None
The fastest flight from Philadelphia to Idaho takes 6h 49m
There are no direct flights from Philadelphia to Idaho. There are no popular flight routes from Philadelphia to Idaho.
Search flight deals

  • 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 $270Free CancellationRating
7.9
8,011 reviews
Search Delta flights
American AirlinesPriceFrom $301Free CancellationRating
7.2
11,042 reviews
Search American Airlines flights
SouthwestPriceFrom $358Free CancellationRating
8.0
4,251 reviews
Search Southwest flights
United AirlinesPriceFrom $367Free CancellationRating
7.4
9,056 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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