What is the cheapest airline that flies from Idaho to Philadelphia?

Southwest, Delta, and United Airlines are the most popular carriers operating from Idaho to Philadelphia

What airlines fly to Philadelphia?

Delta, American Airlines and Alaska Airlines are the top three most popular airlines that fly to Philadelphia from Idaho according to our data. Delta is the first choice among our users, with 34% of people opting to fly with this airline when traveling to Philadelphia. Keep in mind that there are 5 different airlines that fly to Philadelphia on a routine basis, so you have a few additional options to choose from.

How long does it take to fly to Philadelphia?

If you’re flying from a popular airport in Idaho, such as Boise or Twin Falls, and flying into Philadelphia, then you can expect flight times to average 7h 19m and 8h 23m, respectively.

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?

As of October 2026, there are 5 operators available to choose from 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.

$104 Cheap Flights from Idaho to Philadelphia in 2026/27

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Idaho to Philadelphia

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

1:24 pm - 10:53 pmBOI Boise Air Term. Gowen Fld-PHL Philadelphia

7h 29m1 stop Chicago O'Hare Intl

12:47 pm - 7:24 pmPHL Philadelphia-BOI Boise Air Term. Gowen Fld

8h 37m1 stop Phoenix Sky Harbor Intl

$207American Airlines

Sat, Nov 7 - Sat, Nov 14

1:39 pm - 10:34 pmBOI Boise Air Term. Gowen Fld-PHL Philadelphia

6h 55m1 stop Chicago O'Hare Intl

12:59 pm - 7:31 pmPHL Philadelphia-BOI Boise Air Term. Gowen Fld

8h 32m1 stop Phoenix Sky Harbor Intl

$207American Airlines

Wed, Dec 2 - Wed, Dec 9

1:05 pm - 11:25 pmBOI Boise Air Term. Gowen Fld-PHL Philadelphia

8h 20m1 stop Denver Intl

5:00 am - 11:00 amPHL Philadelphia-BOI Boise Air Term. Gowen Fld

8h 00m1 stop Denver Intl

$207Southwest

Mon, Dec 7 - Wed, Dec 9

5:59 pm - 5:44 amBOI Boise Air Term. Gowen Fld-PHL Philadelphia

9h 45m1 stop Seattle/Tacoma Intl

7:00 am - 4:05 pmPHL Philadelphia-BOI Boise Air Term. Gowen Fld

11h 05m1 stop Seattle/Tacoma Intl

$207Delta

Thu, Nov 5 - Thu, Nov 12

5:59 pm - 5:44 amBOI Boise Air Term. Gowen Fld-PHL Philadelphia

9h 45m1 stop Seattle/Tacoma Intl

7:00 am - 4:05 pmPHL Philadelphia-BOI Boise Air Term. Gowen Fld

11h 05m1 stop Seattle/Tacoma Intl

$207Delta

Wed, Nov 4 - Wed, Nov 11

11:40 am - 11:25 pmBOI Boise Air Term. Gowen Fld-PHL Philadelphia

9h 45m2 stops Phoenix Sky Harbor Intl Denver Intl

5:15 pm - 10:30 pmPHL Philadelphia-BOI Boise Air Term. Gowen Fld

7h 15m1 stop Denver Intl

$212Southwest

Mon, Dec 7 - Wed, Dec 9

6:56 pm - 5:03 amBOI Boise Air Term. Gowen Fld-PHL Philadelphia

8h 07m1 stop Las Vegas Harry Reid Intl

6:25 am - 6:01 pmPHL Philadelphia-BOI Boise Air Term. Gowen Fld

13h 36m1 stop Las Vegas Harry Reid Intl

$378Frontier

Wed, Dec 23 - Wed, Dec 30

6:56 pm - 5:03 amBOI Boise Air Term. Gowen Fld-PHL Philadelphia

8h 07m1 stop Las Vegas Harry Reid Intl

6:25 am - 6:01 pmPHL Philadelphia-BOI Boise Air Term. Gowen Fld

13h 36m1 stop Las Vegas Harry Reid Intl

$382Frontier

Wed, Dec 23 - Wed, Dec 30

7:00 am - 3:49 pmIDA Idaho Falls Fanning Field-PHL Philadelphia

6h 49m1 stop Denver Intl

1:19 pm - 9:10 pmPHL Philadelphia-IDA Idaho Falls Fanning Field

9h 51m2 stops Chicago O'Hare Intl Denver Intl

$384United Airlines

Thu, Jan 21 - Mon, Jan 25

7:00 am - 5:44 pmIDA Idaho Falls Fanning Field-PHL Philadelphia

8h 44m2 stops Denver Intl Chicago O'Hare Intl

10:25 am - 9:10 pmPHL Philadelphia-IDA Idaho Falls Fanning Field

12h 45m2 stops Washington, D.C. Dulles Intl Denver Intl

$389United Airlines

Thu, Jan 21 - Mon, Jan 25

Cheap last minute flights

Enter your travel dates to find the best prices.

2:50 pm - 7:18 amBOI Boise Air Term. Gowen Fld-PHL Philadelphia

14h 28m1 stop Las Vegas Harry Reid Intl

8:44 pm - 1:55 pmPHL Philadelphia-BOI Boise Air Term. Gowen Fld

19h 11m1 stop Las Vegas Harry Reid Intl

$499Frontier

Sun, Oct 11 - Sun, Oct 18

2:50 pm - 7:18 amBOI Boise Air Term. Gowen Fld-PHL Philadelphia

14h 28m1 stop Las Vegas Harry Reid Intl

8:44 pm - 1:55 pmPHL Philadelphia-BOI Boise Air Term. Gowen Fld

19h 11m1 stop Las Vegas Harry Reid Intl

$499Frontier

Fri, Oct 16 - Sun, Oct 18

6:56 pm - 6:05 amIDA Idaho Falls Fanning Field-PHL Philadelphia

9h 09m1 stop Salt Lake City

12:15 pm - 10:10 pmPHL Philadelphia-IDA Idaho Falls Fanning Field

11h 55m2 stops Atlanta Hartsfield-Jackson Salt Lake City

$499Delta

Fri, Oct 16 - Tue, Oct 20

6:56 pm - 6:05 amIDA Idaho Falls Fanning Field-PHL Philadelphia

9h 09m1 stop Salt Lake City

3:05 pm - 10:10 pmPHL Philadelphia-IDA Idaho Falls Fanning Field

9h 05m2 stops Minneapolis St Paul Salt Lake City

$546Delta

Fri, Oct 16 - Tue, Oct 20

5:59 am - 3:14 pmBOI Boise Air Term. Gowen Fld-PHL Philadelphia

7h 15m1 stop Portland

7:02 am - 2:11 pmPHL Philadelphia-BOI Boise Air Term. Gowen Fld

9h 09m1 stop Seattle/Tacoma Intl

$587Alaska Airlines

Wed, Oct 14 - Tue, Oct 20

6:43 am - 5:38 pmBOI Boise Air Term. Gowen Fld-PHL Philadelphia

8h 55m1 stop Seattle/Tacoma Intl

7:02 am - 1:50 pmPHL Philadelphia-BOI Boise Air Term. Gowen Fld

8h 48m1 stop Seattle/Tacoma Intl

$607Alaska Airlines

Wed, Oct 14 - Mon, Oct 19

12:14 pm - 12:25 amBOI Boise Air Term. Gowen Fld-PHL Philadelphia

10h 11m1 stop Dallas/Fort Worth

7:25 am - 4:59 pmPHL Philadelphia-BOI Boise Air Term. Gowen Fld

11h 34m2 stops Chicago O'Hare Intl Phoenix Sky Harbor Intl

$722American Airlines

Wed, Oct 14 - Tue, Oct 20

2:41 pm - 12:25 amBOI Boise Air Term. Gowen Fld-PHL Philadelphia

7h 44m1 stop Dallas/Fort Worth

12:41 pm - 10:46 pmPHL Philadelphia-BOI Boise Air Term. Gowen Fld

12h 05m2 stops Chicago O'Hare Intl Dallas/Fort Worth

$722American Airlines

Wed, Oct 14 - Sat, Oct 17

5:00 am - 6:14 pmBOI Boise Air Term. Gowen Fld-PHL Philadelphia

11h 14m2 stops Denver Intl Chicago O'Hare Intl

6:00 am - 3:31 pmPHL Philadelphia-BOI Boise Air Term. Gowen Fld

11h 31m1 stop San Francisco

$742United Airlines

Wed, Oct 14 - Mon, Oct 19

12:26 pm - 11:30 pmBOI Boise Air Term. Gowen Fld-PHL Philadelphia

9h 04m2 stops Chicago O'Hare Intl Washington, D.C. Dulles Intl

6:10 am - 11:28 amPHL Philadelphia-BOI Boise Air Term. Gowen Fld

7h 18m1 stop Chicago O'Hare Intl

$768United Airlines

Sun, Oct 11 - Sun, Oct 18

Save money when you book flights with momondo

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

Southwest flights from Idaho to Philadelphia

Our best Southwest deals on Idaho to Philadelphia flight tickets

Southwest

Nov 6

BOI12:30 pmBoise Air Term. Gowen Fld

9h 40m

2 stops

PHL12:10 amPhiladelphia

Nov 13

PHL1:50 pmPhiladelphia

11h 10m

2 stops

BOI11:00 pmBoise Air Term. Gowen Fld

$270

Southwest

Nov 4

BOI11:40 amBoise Air Term. Gowen Fld

9h 50m

2 stops

PHL11:30 pmPhiladelphia

Nov 11

PHL2:45 pmPhiladelphia

9h 50m

2 stops

BOI10:35 pmBoise Air Term. Gowen Fld

$299

Southwest

Dec 10

BOI5:45 amBoise Air Term. Gowen Fld

13h 40m

2 stops

PHL9:25 pmPhiladelphia

Dec 13

PHL5:00 amPhiladelphia

7h 40m

1 stop

BOI10:40 amBoise Air Term. Gowen Fld

$380

Delta flights from Idaho to Philadelphia

Our best Delta deals on Idaho to Philadelphia flight tickets

Delta

Oct 26

BOI6:49 pmBoise Air Term. Gowen Fld

9h 16m

1 stop

PHL6:05 amPhiladelphia

Oct 28

PHL7:00 amPhiladelphia

10h 20m

1 stop

BOI3:20 pmBoise Air Term. Gowen Fld

$207

Delta

Oct 26

BOI5:59 pmBoise Air Term. Gowen Fld

9h 45m

1 stop

PHL5:44 amPhiladelphia

Oct 28

PHL6:10 amPhiladelphia

13h 04m

2 stops

BOI5:14 pmBoise Air Term. Gowen Fld

$212

Delta

Oct 26

BOI6:49 pmBoise Air Term. Gowen Fld

14h 21m

2 stops

PHL11:10 amPhiladelphia

Oct 28

PHL6:10 amPhiladelphia

13h 04m

2 stops

BOI5:14 pmBoise Air Term. Gowen Fld

$217

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BoisePhiladelphia

BOI Boise Air Term. Gowen Fld - PHL Philadelphia

BOIPHL

Boise Air Term. Gowen Fld

Sat 11/7

1:24 pm-10:53 pm

1 stop7h 29m

Philadelphia

Sat 11/14

12:47 pm-7:24 pm

1 stop8h 37m

$207

Quickest round-trip

BoisePhiladelphia

BOI Boise Air Term. Gowen Fld - PHL Philadelphia

BOIPHL

Boise Air Term. Gowen Fld

Wed 12/2

1:39 pm-10:34 pm

1 stop6h 55m

Philadelphia

Wed 12/9

12:59 pm-7:31 pm

1 stop8h 32m

$207

BoisePhiladelphia

BOI Boise Air Term. Gowen Fld - PHL Philadelphia

BOIPHL

Boise Air Term. Gowen Fld

Mon 12/7

1:05 pm-11:25 pm

1 stop8h 20m

Philadelphia

Wed 12/9

5:00 am-11:00 am

1 stop8h 00m

$207

BoisePhiladelphia

BOI Boise Air Term. Gowen Fld - PHL Philadelphia

BOIPHL

Boise Air Term. Gowen Fld

Thu 11/5

5:59 pm-5:44 am

1 stop9h 45m

Philadelphia

Thu 11/12

7:00 am-4:05 pm

1 stop11h 05m

$207

BoisePhiladelphia

BOI Boise Air Term. Gowen Fld - PHL Philadelphia

BOIPHL

Boise Air Term. Gowen Fld

Wed 11/4

5:59 pm-5:44 am

1 stop9h 45m

Philadelphia

Wed 11/11

7:00 am-4:05 pm

1 stop11h 05m

$207

BoisePhiladelphia

BOI Boise Air Term. Gowen Fld - PHL Philadelphia

BOIPHL

Boise Air Term. Gowen Fld

Mon 12/7

11:40 am-11:25 pm

2 stops9h 45m

Philadelphia

Wed 12/9

5:15 pm-10:30 pm

1 stop7h 15m

$212

BoisePhiladelphia

BOI Boise Air Term. Gowen Fld - PHL Philadelphia

BOIPHL

Boise Air Term. Gowen Fld

Wed 12/23

6:56 pm-5:03 am

1 stop8h 07m

Philadelphia

Wed 12/30

6:25 am-6:01 pm

1 stop13h 36m

$378

BoisePhiladelphia

BOI Boise Air Term. Gowen Fld - PHL Philadelphia

BOIPHL

Boise Air Term. Gowen Fld

Wed 12/23

6:56 pm-5:03 am

1 stop8h 07m

Philadelphia

Wed 12/30

6:25 am-6:01 pm

1 stop13h 36m

$382

Idaho FallsPhiladelphia

IDA Idaho Falls Fanning Field - PHL Philadelphia

IDAPHL

Idaho Falls Fanning Field

Thu 1/21

7:00 am-3:49 pm

1 stop6h 49m

Philadelphia

Mon 1/25

1:19 pm-9:10 pm

2 stops9h 51m

$384

Idaho FallsPhiladelphia

IDA Idaho Falls Fanning Field - PHL Philadelphia

IDAPHL

Idaho Falls Fanning Field

Thu 1/21

7:00 am-5:44 pm

2 stops8h 44m

Philadelphia

Mon 1/25

10:25 am-9:10 pm

2 stops12h 45m

$389

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

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

Prices

Airlines

Other information

What is the cheapest month to fly to Philadelphia?

The cheapest month to fly to Philadelphia from Idaho is in August. Flight prices, which tend to average around $397, are often lower during this time because this is during the off-season. The month of June is another great option to travel to Philadelphia, with average flight prices from Idaho averaging around $413.

How far in advance should I book a flight from Idaho 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 $482 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 $352 on momondo.

Can stopping save me money on Idaho to Philadelphia flights?

You could potentially save up to 60% on your flight if you consider stops on a Idaho to Philadelphia flight.

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	$104
Fastest flight time	6h 20m
Direct flights	None

The best one-way flight to Philadelphia from Idaho in the past 72 hours is $104. The best round-trip flight deal from Idaho to Philadelphia found on momondo in the last 72 hours is $207.

The fastest flight from Idaho to Philadelphia takes 6h 20m

There are no direct flights from Idaho to Philadelphia. There are no popular flight routes from Idaho to Philadelphia.

Search flight deals

Frequently asked questions about flying from Idaho to Philadelphia

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?
As of October 2026, there are 5 operators available to choose from 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
United Airlines	PriceFrom $257	Free Cancellation	Rating 7.4 10,332 reviews	Search United Airlines flights
Delta	PriceFrom $257	Free Cancellation	Rating 7.8 8,652 reviews	Search Delta flights
American Airlines	PriceFrom $309	Free Cancellation	Rating 7.0 12,152 reviews	Search American Airlines flights
Alaska Airlines	PriceFrom $310	Free Cancellation	Rating 7.9 13,043 reviews	Search Alaska Airlines flights
Southwest	PriceFrom $348	Free Cancellation	Rating 7.9 4,228 reviews	Search Southwest flights

Wildwood

Cape May

Rehoboth Beach

Wildwood Crest

Ocean City

Cherry Hill

King of Prussia

Newark

Reading

Essington

Dover

Dewey Beach

New Castle

North Wildwood

Chester

Vineland

Avalon

Lewes

Pottstown

Elkton

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.