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Cheap flights from Idaho to Philadelphia from $110

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 10/6. 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

Alaska Airlines Logo
5:54 pm - 5:40 amGEG-PHL
8h 46m1 stop
Alaska Airlines Logo
7:11 pm - 8:20 amPHL-GEG
16h 09m1 stop
$220Alaska Airlines
Find Deal
lun., oct. 20 - mié., oct. 22
Delta Logo
3:06 pm - 11:51 pmBOI-PHL
6h 45m1 stop
Delta Logo
7:00 am - 11:55 amPHL-BOI
6h 55m1 stop
$221Delta
Find Deal
mar., sep. 9 - mié., sep. 10
Delta Logo
12:51 pm - 12:52 amGEG-PHL
9h 01m1 stop
Delta Logo
5:40 am - 11:41 amPHL-GEG
9h 01m1 stop
$221Delta
Find Deal
mié., oct. 22 - mié., oct. 29
American Airlines Logo
6:00 am - 7:19 pmGEG-PHL
10h 19m1 stop
American Airlines Logo
6:42 am - 11:41 amPHL-GEG
7h 59m1 stop
$250American Airlines
Find Deal
vie., sep. 5 - sáb., sep. 13
Frontier Logo
11:52 am - 4:54 amGEG-PHL
14h 02m1 stop
Frontier Logo
6:45 am - 10:58 amPHL-GEG
7h 13m1 stop
$278Frontier
Find Deal
jue., ago. 28 - jue., sep. 4
American Airlines Logo
12:35 pm - 1:10 amGEG-PHL
9h 35m1 stop
American Airlines Logo
5:00 am - 11:46 amPHL-GEG
9h 46m1 stop
$279American Airlines
Find Deal
vie., sep. 26 - dom., sep. 28
Southwest Logo
7:15 am - 10:30 pmGEG-PHL
12h 15m2 stops
Southwest Logo
1:35 pm - 11:35 pmPHL-GEG
13h 00m2 stops
$324Southwest
Find Deal
mié., oct. 22 - mié., oct. 29
Southwest Logo
6:05 am - 9:00 pmGEG-PHL
11h 55m2 stops
Southwest Logo
4:00 pm - 10:25 pmPHL-GEG
9h 25m2 stops
$326Southwest
Find Deal
mar., nov. 18 - mar., dic. 2
United Airlines Logo
10:40 am - 12:20 amBOI-PHL
11h 40m2 stops
United Airlines Logo
6:34 am - 1:42 pmPHL-BOI
9h 08m1 stop
$337United Airlines
Find Deal
mié., sep. 24 - dom., sep. 28
United Airlines Logo
12:27 pm - 9:31 pmBOI-PHL
7h 04m1 stop
United Airlines Logo
10:10 am - 5:59 pmPHL-BOI
9h 49m2 stops
$374United Airlines
Find Deal
vie., ago. 22 - mar., ago. 26

Spirit Airlines flights from Idaho to Philadelphia

Our best Spirit Airlines deals on Idaho to Philadelphia flight tickets
Spirit Airlines
Oct 2
BOI2:16 pmBoise Air Term. Gowen Fld
13h 49m
1 stop
PHL6:05 amPhiladelphia
Oct 5
PHL10:03 pmPhiladelphia
24h 28m
2 stops
BOI8:31 pmBoise Air Term. Gowen Fld
$353
Find similar
Spirit Airlines
Sep 14
BOI2:16 pmBoise Air Term. Gowen Fld
27h 22m
3 stops
PHL7:38 pmPhiladelphia
Sep 17
PHL12:00 pmPhiladelphia
27h 21m
3 stops
BOI1:21 pmBoise Air Term. Gowen Fld
$376
Find similar
Spirit Airlines
Oct 2
BOI2:16 pmBoise Air Term. Gowen Fld
13h 49m
1 stop
PHL6:05 amPhiladelphia
Oct 5
PHL5:15 pmPhiladelphia
29h 16m
3 stops
BOI8:31 pmBoise Air Term. Gowen Fld
$390
Find similar

Delta flights from Idaho to Philadelphia

Our best Delta deals on Idaho to Philadelphia flight tickets
Delta
Oct 22
GEG12:51 pmSpokane
9h 01m
1 stop
PHL12:52 amPhiladelphia
Oct 29
PHL5:40 amPhiladelphia
9h 01m
1 stop
GEG11:41 amSpokane
$221
Find similar
Delta
Sep 9
BOI1:30 pmBoise Air Term. Gowen Fld
9h 26m
1 stop
PHL12:56 amPhiladelphia
Sep 10
PHL6:00 amPhiladelphia
10h 01m
2 stops
BOI2:01 pmBoise Air Term. Gowen Fld
$226
Find similar
Delta
Oct 22
GEG7:24 pmSpokane
10h 17m
2 stops
PHL8:41 amPhiladelphia
Oct 29
PHL12:23 pmPhiladelphia
11h 42m
2 stops
GEG9:05 pmSpokane
$231
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 agosto 7, 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

SpokanePhiladelphia

GEG - PHL

GEGPHL

Spokane

lun. 10/20

5:54 pm-5:40 am

1 stop8h 46m

Philadelphia

mié. 10/22

7:11 pm-8:20 am

1 stop16h 09m

$220

BoisePhiladelphia

BOI - PHL

BOIPHL

Boise Air Term. Gowen Fld

mar. 9/9

3:06 pm-11:51 pm

1 stop6h 45m

Philadelphia

mié. 9/10

7:00 am-11:55 am

1 stop6h 55m

$221

SpokanePhiladelphia

GEG - PHL

GEGPHL

Spokane

mié. 10/22

12:51 pm-12:52 am

1 stop9h 01m

Philadelphia

mié. 10/29

5:40 am-11:41 am

1 stop9h 01m

$221

SpokanePhiladelphia

GEG - PHL

GEGPHL

Spokane

vie. 9/5

6:00 am-7:19 pm

1 stop10h 19m

Philadelphia

sáb. 9/13

6:42 am-11:41 am

1 stop7h 59m

$250

SpokanePhiladelphia

GEG - PHL

GEGPHL

Spokane

jue. 8/28

11:52 am-4:54 am

1 stop14h 02m

Philadelphia

jue. 9/4

6:45 am-10:58 am

1 stop7h 13m

$278

SpokanePhiladelphia

GEG - PHL

GEGPHL

Spokane

vie. 9/26

12:35 pm-1:10 am

1 stop9h 35m

Philadelphia

dom. 9/28

5:00 am-11:46 am

1 stop9h 46m

$279

SpokanePhiladelphia

GEG - PHL

GEGPHL

Spokane

mié. 10/22

7:15 am-10:30 pm

2 stops12h 15m

Philadelphia

mié. 10/29

1:35 pm-11:35 pm

2 stops13h 00m

$324

SpokanePhiladelphia

GEG - PHL

GEGPHL

Spokane

mar. 11/18

6:05 am-9:00 pm

2 stops11h 55m

Philadelphia

mar. 12/2

4:00 pm-10:25 pm

2 stops9h 25m

$326

BoisePhiladelphia

BOI - PHL

BOIPHL

Boise Air Term. Gowen Fld

mié. 9/24

10:40 am-12:20 am

2 stops11h 40m

Philadelphia

dom. 9/28

6:34 am-1:42 pm

1 stop9h 08m

$337

BoisePhiladelphia

BOI - PHL

BOIPHL

Boise Air Term. Gowen Fld

vie. 8/22

12:27 pm-9:31 pm

1 stop7h 04m

Philadelphia

mar. 8/26

10:10 am-5:59 pm

2 stops9h 49m

$374

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 $366, are often lower during this time because this is during the off-season. The month of May is another great option to travel to Philadelphia, with average flight prices from Idaho averaging around $414.

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.

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

According to our data, the cheapest time of day to fly to Philadelphia is in the evening. momondo users have found flights departing from Idaho to Philadelphia in the evening for as low as $407. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. In contrast, the most expensive time of day to depart to Philadelphia is in the morning when prices are around $502.

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 $469 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

Best Price Found

$110

Fastest flight time

6h 27m

Direct flights

None

Airports in Philadelphia

1 airport
The best one-way flight to Philadelphia from Idaho in the past 72 hours is $110. The best round-trip flight deal from Idaho to Philadelphia found on momondo in the last 72 hours is $220.
The fastest flight from Idaho to Philadelphia takes 6h 27m
There are no direct flights from Idaho to Philadelphia. Popular non-direct routes for this connection are Hailey Sun Valley-Friedman Airport - Philadelphia Airport, Boise Air Term. Gowen Fld Airport - Philadelphia Airport and Spokane Airport - Philadelphia Airport.
There is 1 airport near Philadelphia: Philadelphia (PHL)
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  • 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
5.8
3,231 reviews
Search Frontier flights
DeltaPriceFrom $259Free CancellationRating
8.0
7,985 reviews
Search Delta flights
American AirlinesPriceFrom $326Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
Alaska AirlinesPriceFrom $332Free CancellationRating
8.0
10,000 reviews
Search Alaska Airlines flights
SouthwestPriceFrom $367Free CancellationRating
8.0
4,247 reviews
Search Southwest flights
United AirlinesPriceFrom $411Free CancellationRating
7.4
8,917 reviews
Search United Airlines flights

Traveling to a place near Philadelphia?

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

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.

An easier way to manage your Philadelphia trip

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