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Cheap flights from Philadelphia to Idaho from $140

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 11/24. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
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.
Frontier Logo
6:19 am - 11:08 amPHL-GEG
7h 49m1 stop
Frontier Logo
12:03 pm - 4:49 amGEG-PHL
13h 46m1 stop
$252Frontier
Find Deal
to, marras 6 - to, marras 13
Frontier Logo
6:19 am - 11:43 amPHL-BOI
7h 24m1 stop
Frontier Logo
12:28 pm - 4:49 amBOI-PHL
14h 21m1 stop
$254Frontier
Find Deal
to, marras 13 - su, marras 16
Delta Logo
7:05 am - 2:47 pmPHL-JAC
9h 42m1 stop
Delta Logo
7:00 am - 5:37 pmJAC-PHL
8h 37m1 stop
$257Delta
Find Deal
ke, marras 5 - ma, marras 10
Delta Logo
6:50 am - 2:47 pmPHL-JAC
9h 57m2 stops
Delta Logo
7:00 am - 5:37 pmJAC-PHL
8h 37m1 stop
$262Delta
Find Deal
ke, marras 5 - ma, marras 10
American Airlines Logo
5:05 pm - 11:33 pmPHL-BOI
8h 28m1 stop
American Airlines Logo
2:17 pm - 11:47 pmBOI-PHL
7h 30m1 stop
$279American Airlines
Find Deal
la, helmi 14 - la, helmi 21
United Airlines Logo
10:22 am - 8:37 pmPHL-JAC
12h 15m2 stops
United Airlines Logo
2:40 pm - 11:09 pmJAC-PHL
6h 29m1 stop
$295United Airlines
Find Deal
la, marras 8 - ti, marras 11
American Airlines Logo
5:05 pm - 11:33 pmPHL-BOI
8h 28m1 stop
American Airlines Logo
11:36 am - 11:47 pmBOI-PHL
10h 11m1 stop
$308American Airlines
Find Deal
la, helmi 14 - la, helmi 21
United Airlines Logo
8:08 am - 3:25 pmPHL-JAC
9h 17m1 stop
United Airlines Logo
2:40 pm - 11:09 pmJAC-PHL
6h 29m1 stop
$314United Airlines
Find Deal
la, marras 8 - to, marras 13
Southwest Logo
3:20 pm - 12:35 amPHL-BOI
11h 15m2 stops
Southwest Logo
5:00 am - 2:40 pmBOI-PHL
7h 40m2 stops
$404Southwest
Find Deal
to, marras 13 - su, marras 16
Southwest Logo
3:20 pm - 12:35 amPHL-BOI
11h 15m2 stops
Southwest Logo
5:00 am - 2:40 pmBOI-PHL
7h 40m2 stops
$408Southwest
Find Deal
pe, marras 7 - ma, marras 10

Alaska Airlines flights from Philadelphia to Idaho

Our best Alaska Airlines deals on Philadelphia to Idaho flight tickets
Alaska Airlines
Dec 16
PHL7:06 amPhiladelphia
10h 20m
1 stop
BOI3:26 pmBoise Air Term. Gowen Fld
Dec 25
BOI6:00 pmBoise Air Term. Gowen Fld
9h 37m
1 stop
PHL5:37 amPhiladelphia
$307
Find similar
Alaska Airlines
Nov 12
PHL7:02 amPhiladelphia
10h 10m
1 stop
BOI3:12 pmBoise Air Term. Gowen Fld
Nov 15
BOI4:57 pmBoise Air Term. Gowen Fld
10h 45m
1 stop
PHL5:42 amPhiladelphia
$316
Find similar
Alaska Airlines
Nov 12
PHL7:12 pmPhiladelphia
17h 17m
1 stop
BOI10:29 amBoise Air Term. Gowen Fld
Nov 19
BOI6:05 pmBoise Air Term. Gowen Fld
9h 37m
1 stop
PHL5:42 amPhiladelphia
$326
Find similar

Southwest flights from Philadelphia to Idaho

Our best Southwest deals on Philadelphia to Idaho flight tickets
Southwest
Nov 13
PHL3:20 pmPhiladelphia
11h 15m
2 stops
BOI12:35 amBoise Air Term. Gowen Fld
Nov 16
BOI5:00 amBoise Air Term. Gowen Fld
7h 40m
2 stops
PHL2:40 pmPhiladelphia
$404
Find similar
Southwest
Nov 7
PHL3:20 pmPhiladelphia
11h 15m
2 stops
BOI12:35 amBoise Air Term. Gowen Fld
Nov 10
BOI5:00 amBoise Air Term. Gowen Fld
7h 40m
2 stops
PHL2:40 pmPhiladelphia
$408
Find similar
Southwest
Dec 18
PHL5:45 amPhiladelphia
11h 40m
2 stops
BOI3:25 pmBoise Air Term. Gowen Fld
Jan 5
BOI1:10 pmBoise Air Term. Gowen Fld
8h 35m
2 stops
PHL11:45 pmPhiladelphia
$438
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 lokakuu 16, 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

PhiladelphiaSpokane

PHL - GEG

PHLGEG

Philadelphia

to 11/6

6:19 am-11:08 am

1 stop7h 49m

Spokane

to 11/13

12:03 pm-4:49 am

1 stop13h 46m

$252

PhiladelphiaBoise

PHL - BOI

PHLBOI

Philadelphia

to 11/13

6:19 am-11:43 am

1 stop7h 24m

Boise Air Term. Gowen Fld

su 11/16

12:28 pm-4:49 am

1 stop14h 21m

$254

PhiladelphiaJackson

PHL - JAC

PHLJAC

Philadelphia

ke 11/5

7:05 am-2:47 pm

1 stop9h 42m

Jackson Hole

ma 11/10

7:00 am-5:37 pm

1 stop8h 37m

$257

PhiladelphiaJackson

PHL - JAC

PHLJAC

Philadelphia

ke 11/5

6:50 am-2:47 pm

2 stops9h 57m

Jackson Hole

ma 11/10

7:00 am-5:37 pm

1 stop8h 37m

$262

PhiladelphiaBoise

PHL - BOI

PHLBOI

Philadelphia

la 2/14

5:05 pm-11:33 pm

1 stop8h 28m

Boise Air Term. Gowen Fld

la 2/21

2:17 pm-11:47 pm

1 stop7h 30m

$279

PhiladelphiaJackson

PHL - JAC

PHLJAC

Philadelphia

la 11/8

10:22 am-8:37 pm

2 stops12h 15m

Jackson Hole

ti 11/11

2:40 pm-11:09 pm

1 stop6h 29m

$295

PhiladelphiaBoise

PHL - BOI

PHLBOI

Philadelphia

la 2/14

5:05 pm-11:33 pm

1 stop8h 28m

Boise Air Term. Gowen Fld

la 2/21

11:36 am-11:47 pm

1 stop10h 11m

$308

PhiladelphiaJackson

PHL - JAC

PHLJAC

Philadelphia

la 11/8

8:08 am-3:25 pm

1 stop9h 17m

Jackson Hole

to 11/13

2:40 pm-11:09 pm

1 stop6h 29m

$314

PhiladelphiaBoise

PHL - BOI

PHLBOI

Philadelphia

to 11/13

3:20 pm-12:35 am

2 stops11h 15m

Boise Air Term. Gowen Fld

su 11/16

5:00 am-2:40 pm

2 stops7h 40m

$404

PhiladelphiaBoise

PHL - BOI

PHLBOI

Philadelphia

pe 11/7

3:20 pm-12:35 am

2 stops11h 15m

Boise Air Term. Gowen Fld

ma 11/10

5:00 am-2:40 pm

2 stops7h 40m

$408

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 $467 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 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

Direct flights

None
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 $307Free CancellationRating
7.9
7,977 reviews
Search Delta flights
American AirlinesPriceFrom $316Free CancellationRating
7.2
11,045 reviews
Search American Airlines flights
SouthwestPriceFrom $358Free CancellationRating
8.0
4,240 reviews
Search Southwest flights
United AirlinesPriceFrom $359Free CancellationRating
7.4
8,978 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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