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Cheap flights from Idaho to Philadelphia from $168

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Idaho to Philadelphia departing on 1/28. 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 Idaho to Philadelphia

Cheap round-trip flights

Enter your travel dates to find the best prices.
American Airlines Logo
5:41 pm - 7:01 am
JAC
-
PHL
11h 20m1 stop
American Airlines Logo
7:14 am - 12:19 pm
PHL
-
JAC
7h 05m1 stop
$289American Airlines
Sat, Feb 7 - Sun, Feb 15
American Airlines Logo
5:41 pm - 8:43 am
JAC
-
PHL
13h 02m2 stops
American Airlines Logo
8:30 am - 2:22 pm
PHL
-
JAC
7h 52m1 stop
$294American Airlines
Sat, Feb 7 - Sun, Feb 15
Delta Logo
1:00 pm - 11:53 pm
BOI
-
PHL
8h 53m1 stop
Delta Logo
12:16 pm - 8:55 pm
PHL
-
BOI
10h 39m2 stops
$324Delta
Sun, Jan 18 - Thu, Jan 22
Alaska Airlines Logo
8:29 pm - 5:20 pm
GEG
-
PHL
17h 51m1 stop
Alaska Airlines Logo
6:20 pm - 12:29 pm
PHL
-
GEG
21h 09m1 stop
$325Alaska Airlines
Fri, Feb 27 - Wed, Mar 4
Delta Logo
1:00 pm - 11:25 pm
BOI
-
PHL
8h 25m2 stops
Delta Logo
6:00 am - 1:34 pm
PHL
-
BOI
9h 34m2 stops
$329Delta
Sun, Jan 18 - Thu, Jan 22
United Airlines Logo
5:00 am - 5:34 pm
GEG
-
PHL
9h 34m2 stops
United Airlines Logo
10:30 am - 7:16 pm
PHL
-
GEG
11h 46m2 stops
$329United Airlines
Sat, Jan 17 - Thu, Jan 22
Alaska Airlines Logo
12:10 pm - 6:03 pm
GEG
-
PHL
26h 53m1 stop
Alaska Airlines Logo
7:06 pm - 12:23 am
PHL
-
GEG
8h 17m1 stop
$334Alaska Airlines
Fri, Feb 6 - Sun, Feb 8
Southwest Logo
7:45 am - 8:20 pm
BOI
-
PHL
10h 35m2 stops
Southwest Logo
5:00 am - 10:20 am
PHL
-
BOI
7h 20m1 stop
$342Southwest
Mon, Feb 2 - Thu, Feb 5
Southwest Logo
6:05 am - 5:25 pm
BOI
-
PHL
9h 20m2 stops
Southwest Logo
5:50 am - 3:50 pm
PHL
-
BOI
12h 00m2 stops
$353Southwest
Mon, Feb 2 - Thu, Feb 5
United Airlines Logo
2:40 pm - 11:30 pm
JAC
-
PHL
6h 50m1 stop
United Airlines Logo
3:37 pm - 8:59 pm
PHL
-
JAC
7h 22m1 stop
$379United Airlines
Thu, Feb 19 - Mon, Feb 23

Alaska Airlines flights from Idaho to Philadelphia

Our best Alaska Airlines deals on Idaho to Philadelphia flight tickets
Alaska Airlines
Feb 27
GEG8:29 pmSpokane
17h 51m
1 stop
PHL5:20 pmPhiladelphia
Mar 4
PHL6:20 pmPhiladelphia
21h 09m
1 stop
GEG12:29 pmSpokane
$325
Find similar
Alaska Airlines
Feb 6
GEG12:10 pmSpokane
26h 53m
1 stop
PHL6:03 pmPhiladelphia
Feb 8
PHL7:06 pmPhiladelphia
8h 17m
1 stop
GEG12:23 amSpokane
$334
Find similar
Alaska Airlines
Feb 2
BOI5:55 pmBoise Air Term. Gowen Fld
22h 08m
1 stop
PHL6:03 pmPhiladelphia
Feb 5
PHL7:06 pmPhiladelphia
17h 46m
1 stop
BOI10:52 amBoise Air Term. Gowen Fld
$336
Find similar

Southwest flights from Idaho to Philadelphia

Our best Southwest deals on Idaho to Philadelphia flight tickets
Southwest
Feb 2
BOI7:45 amBoise Air Term. Gowen Fld
10h 35m
2 stops
PHL8:20 pmPhiladelphia
Feb 5
PHL5:00 amPhiladelphia
7h 20m
1 stop
BOI10:20 amBoise Air Term. Gowen Fld
$342
Find similar
Southwest
Feb 2
BOI6:05 amBoise Air Term. Gowen Fld
9h 20m
2 stops
PHL5:25 pmPhiladelphia
Feb 5
PHL5:50 amPhiladelphia
12h 00m
2 stops
BOI3:50 pmBoise Air Term. Gowen Fld
$353
Find similar
Southwest
Apr 15
BOI3:15 pmBoise Air Term. Gowen Fld
6h 40m
1 stop
PHL11:55 pmPhiladelphia
Apr 18
PHL5:35 amPhiladelphia
6h 50m
1 stop
BOI10:25 amBoise Air Term. Gowen Fld
$373
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Idaho to Philadelphia 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 December 28, 2025.
Use the filters below to find and compare flights from Idaho to Philadelphia that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

JacksonPhiladelphia

JAC - PHL

JACPHL

Jackson Hole

Sat 2/7

5:41 pm-7:01 am

1 stop11h 20m

Philadelphia

Sun 2/15

7:14 am-12:19 pm

1 stop7h 05m

$289

JacksonPhiladelphia

JAC - PHL

JACPHL

Jackson Hole

Sat 2/7

5:41 pm-8:43 am

2 stops13h 02m

Philadelphia

Sun 2/15

8:30 am-2:22 pm

1 stop7h 52m

$294

BoisePhiladelphia

BOI - PHL

BOIPHL

Boise Air Term. Gowen Fld

Sun 1/18

1:00 pm-11:53 pm

1 stop8h 53m

Philadelphia

Thu 1/22

12:16 pm-8:55 pm

2 stops10h 39m

$324

SpokanePhiladelphia

GEG - PHL

GEGPHL

Spokane

Fri 2/27

8:29 pm-5:20 pm

1 stop17h 51m

Philadelphia

Wed 3/4

6:20 pm-12:29 pm

1 stop21h 09m

$325

BoisePhiladelphia

BOI - PHL

BOIPHL

Boise Air Term. Gowen Fld

Sun 1/18

1:00 pm-11:25 pm

2 stops8h 25m

Philadelphia

Thu 1/22

6:00 am-1:34 pm

2 stops9h 34m

$329

SpokanePhiladelphia

GEG - PHL

GEGPHL

Spokane

Sat 1/17

5:00 am-5:34 pm

2 stops9h 34m

Philadelphia

Thu 1/22

10:30 am-7:16 pm

2 stops11h 46m

$329

SpokanePhiladelphia

GEG - PHL

GEGPHL

Spokane

Fri 2/6

12:10 pm-6:03 pm

1 stop26h 53m

Philadelphia

Sun 2/8

7:06 pm-12:23 am

1 stop8h 17m

$334

BoisePhiladelphia

BOI - PHL

BOIPHL

Boise Air Term. Gowen Fld

Mon 2/2

7:45 am-8:20 pm

2 stops10h 35m

Philadelphia

Thu 2/5

5:00 am-10:20 am

1 stop7h 20m

$342

BoisePhiladelphia

BOI - PHL

BOIPHL

Boise Air Term. Gowen Fld

Mon 2/2

6:05 am-5:25 pm

2 stops9h 20m

Philadelphia

Thu 2/5

5:50 am-3:50 pm

2 stops12h 00m

$353

JacksonPhiladelphia

JAC - PHL

JACPHL

Jackson Hole

Thu 2/19

2:40 pm-11:30 pm

1 stop6h 50m

Philadelphia

Mon 2/23

3:37 pm-8:59 pm

1 stop7h 22m

$379

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 Philadelphia from

How to get the cheapest flight ticket from Idaho to Philadelphia

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 Philadelphia?

The cheapest month to fly to Philadelphia from Idaho is in January. Flight prices, which tend to average around $346, are often lower during this time because this is during the off-season. The month of April is another great option to travel to Philadelphia, with average flight prices from Idaho averaging around $393.

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

The cheapest day to depart from Idaho to Philadelphia is on a Wednesday. Travelers who choose to depart for Philadelphia on a Wednesday will often find tickets for as low as $457. On the other hand, Sunday is the most expensive day to depart from Idaho because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $638.

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

You are more likely to see cheaper flights to Philadelphia from Idaho when booking weeks ahead of your departure date. In general, you can expect to find flights to Philadelphia for around $472 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Philadelphia from Idaho for as low as $385 on momondo.

Cheap Idaho to Philadelphia flight deals and tips

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

Fastest flight time

6h 35m

Direct flights

None
The fastest flight from Idaho to Philadelphia takes 6h 35m
There are no direct flights from Idaho to Philadelphia. There are no popular flight routes from Idaho to Philadelphia.
Search flight deals

  • When did momondo last update prices for flights from Idaho to Philadelphia Airport?

    Prices for flights from Idaho to Philadelphia Airport refresh daily.

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

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

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Idaho to Philadelphia Airport.

  • What documentation or ID do you need to fly to Philadelphia Airport?

    The necessary travel and health documents for your Philadelphia Airport 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 Idaho to Philadelphia

Compare and see reviews for airlines that fly from Idaho to Philadelphia with momondo
Airline
Rating
Free Cancellation
Price
FrontierPriceFrom $130Free CancellationRating
5.7
3,065 reviews
Search Frontier flights
DeltaPriceFrom $208Free CancellationRating
7.9
8,019 reviews
Search Delta flights
American AirlinesPriceFrom $319Free CancellationRating
7.2
11,072 reviews
Search American Airlines flights
United AirlinesPriceFrom $340Free CancellationRating
7.4
9,113 reviews
Search United Airlines flights
SouthwestPriceFrom $416Free CancellationRating
8.0
4,256 reviews
Search Southwest flights

Traveling to a place near Philadelphia?

Book flights to Philadelphia if you plan to visit one of these locations
Wildwood
Cape May
Rehoboth Beach
Wildwood Crest
Ocean City
King of Prussia
Cherry Hill
Newark
Dewey Beach
Reading
North Wildwood
Avalon
Dover
Lewes
Stone Harbor
Essington
Vineland
Pottstown
Elkton
Somers Point

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Idaho to Philadelphia. momondo saves you time and could save you money on your trip.

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

Yes. All flights to Philadelphia from Idaho on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Philadelphia from Idaho.

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

Yes momondo offers price alerts on flights to Philadelphia from Idaho. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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