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Cheap flights from Boise to Philadelphia from $98

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Boise to Philadelphia departing on 2/12. 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 Boise to Philadelphia

Cheap round-trip flights

Enter your travel dates to find the best prices.
Frontier Logo
2:19 pm - 4:32 pm
BOI
-
PHL
24h 13m1 stop
Frontier Logo
4:08 pm - 1:16 pm
PHL
-
BOI
23h 08m2 stops
$264Frontier
Thu, Jan 15 - Sat, Jan 17
Frontier Logo
12:07 pm - 11:46 am
BOI
-
PHL
21h 39m1 stop
Frontier Logo
4:08 pm - 1:25 pm
PHL
-
BOI
23h 17m2 stops
$330Frontier
Sun, Jan 11 - Wed, Jan 14
Delta Logo
10:39 am - 11:53 pm
BOI
-
PHL
11h 14m2 stops
Delta Logo
11:47 am - 9:58 pm
PHL
-
BOI
12h 11m2 stops
$336Delta
Thu, Feb 5 - Sun, Feb 8
Alaska Airlines Logo
6:23 am - 6:03 pm
BOI
-
PHL
9h 40m1 stop
Alaska Airlines Logo
7:06 pm - 3:10 pm
PHL
-
BOI
22h 04m1 stop
$365Alaska Airlines
Thu, Feb 5 - Sun, Feb 8
United Airlines Logo
6:10 am - 5:34 pm
BOI
-
PHL
9h 24m2 stops
United Airlines Logo
10:10 am - 7:45 pm
PHL
-
BOI
11h 35m2 stops
$371United Airlines
Thu, Jan 15 - Sat, Jan 17
Southwest Logo
12:30 pm - 10:25 pm
BOI
-
PHL
7h 55m1 stop
Southwest Logo
5:00 pm - 11:10 pm
PHL
-
BOI
8h 10m1 stop
$373Southwest
Sun, Jan 11 - Wed, Jan 14
Southwest Logo
7:45 am - 8:50 pm
BOI
-
PHL
11h 05m2 stops
Southwest Logo
1:50 pm - 11:10 pm
PHL
-
BOI
11h 20m2 stops
$383Southwest
Sun, Jan 11 - Wed, Jan 14
Delta Logo
1:00 pm - 11:53 pm
BOI
-
PHL
8h 53m1 stop
Delta Logo
11:47 am - 9:58 pm
PHL
-
BOI
12h 11m2 stops
$395Delta
Thu, Feb 5 - Sun, Feb 8
United Airlines Logo
10:48 am - 9:52 pm
BOI
-
PHL
9h 04m1 stop
United Airlines Logo
6:30 am - 12:39 pm
PHL
-
BOI
8h 09m1 stop
$493United Airlines
Sun, Jan 25 - Thu, Jan 29
United Airlines Logo
10:48 am - 9:52 pm
BOI
-
PHL
9h 04m1 stop
United Airlines Logo
10:10 am - 9:23 pm
PHL
-
BOI
13h 13m2 stops
$498United Airlines
Sun, Jan 25 - Thu, Jan 29

Frontier flights from Boise to Philadelphia

Our best Frontier deals on Boise to Philadelphia flight tickets
Frontier
Jan 15
BOI2:19 pmBoise Air Term. Gowen Fld
24h 13m
1 stop
PHL4:32 pmPhiladelphia
Jan 17
PHL4:08 pmPhiladelphia
23h 08m
2 stops
BOI1:16 pmBoise Air Term. Gowen Fld
$264
Find similar
Frontier
Jan 11
BOI12:07 pmBoise Air Term. Gowen Fld
21h 39m
1 stop
PHL11:46 amPhiladelphia
Jan 14
PHL4:08 pmPhiladelphia
23h 17m
2 stops
BOI1:25 pmBoise Air Term. Gowen Fld
$330
Find similar
Frontier
Dec 28
BOI12:38 pmBoise Air Term. Gowen Fld
33h 48m
2 stops
PHL12:26 amPhiladelphia
Jan 3
PHL8:36 pmPhiladelphia
17h 07m
1 stop
BOI11:43 amBoise Air Term. Gowen Fld
$672
Find similar

Delta flights from Boise to Philadelphia

Our best Delta deals on Boise to Philadelphia flight tickets
Delta
Feb 5
BOI10:39 amBoise Air Term. Gowen Fld
11h 14m
2 stops
PHL11:53 pmPhiladelphia
Feb 8
PHL11:47 amPhiladelphia
12h 11m
2 stops
BOI9:58 pmBoise Air Term. Gowen Fld
$336
Find similar
Delta
Feb 5
BOI1:00 pmBoise Air Term. Gowen Fld
8h 53m
1 stop
PHL11:53 pmPhiladelphia
Feb 8
PHL11:47 amPhiladelphia
12h 11m
2 stops
BOI9:58 pmBoise Air Term. Gowen Fld
$395
Find similar
Delta
May 27
BOI5:40 amBoise Air Term. Gowen Fld
6h 20m
1 stop
PHL2:00 pmPhiladelphia
May 31
PHL7:05 amPhiladelphia
9h 17m
1 stop
BOI2:22 pmBoise Air Term. Gowen Fld
$437
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Boise 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 16, 2025.
Use the filters below to find and compare flights from Boise to Philadelphia that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

BoisePhiladelphia

BOI - PHL

BOIPHL

Boise Air Term. Gowen Fld

Thu 1/15

2:19 pm-4:32 pm

1 stop24h 13m

Philadelphia

Sat 1/17

4:08 pm-1:16 pm

2 stops23h 08m

$264

BoisePhiladelphia

BOI - PHL

BOIPHL

Boise Air Term. Gowen Fld

Sun 1/11

12:07 pm-11:46 am

1 stop21h 39m

Philadelphia

Wed 1/14

4:08 pm-1:25 pm

2 stops23h 17m

$330

BoisePhiladelphia

BOI - PHL

BOIPHL

Boise Air Term. Gowen Fld

Thu 2/5

10:39 am-11:53 pm

2 stops11h 14m

Philadelphia

Sun 2/8

11:47 am-9:58 pm

2 stops12h 11m

$336

BoisePhiladelphia

BOI - PHL

BOIPHL

Boise Air Term. Gowen Fld

Thu 2/5

6:23 am-6:03 pm

1 stop9h 40m

Philadelphia

Sun 2/8

7:06 pm-3:10 pm

1 stop22h 04m

$365

BoisePhiladelphia

BOI - PHL

BOIPHL

Boise Air Term. Gowen Fld

Thu 1/15

6:10 am-5:34 pm

2 stops9h 24m

Philadelphia

Sat 1/17

10:10 am-7:45 pm

2 stops11h 35m

$371

BoisePhiladelphia

BOI - PHL

BOIPHL

Boise Air Term. Gowen Fld

Sun 1/11

12:30 pm-10:25 pm

1 stop7h 55m

Philadelphia

Wed 1/14

5:00 pm-11:10 pm

1 stop8h 10m

$373

BoisePhiladelphia

BOI - PHL

BOIPHL

Boise Air Term. Gowen Fld

Sun 1/11

7:45 am-8:50 pm

2 stops11h 05m

Philadelphia

Wed 1/14

1:50 pm-11:10 pm

2 stops11h 20m

$383

BoisePhiladelphia

BOI - PHL

BOIPHL

Boise Air Term. Gowen Fld

Thu 2/5

1:00 pm-11:53 pm

1 stop8h 53m

Philadelphia

Sun 2/8

11:47 am-9:58 pm

2 stops12h 11m

$395

BoisePhiladelphia

BOI - PHL

BOIPHL

Boise Air Term. Gowen Fld

Sun 1/25

10:48 am-9:52 pm

1 stop9h 04m

Philadelphia

Thu 1/29

6:30 am-12:39 pm

1 stop8h 09m

$493

BoisePhiladelphia

BOI - PHL

BOIPHL

Boise Air Term. Gowen Fld

Sun 1/25

10:48 am-9:52 pm

1 stop9h 04m

Philadelphia

Thu 1/29

10:10 am-9:23 pm

2 stops13h 13m

$498

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 Boise 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 Boise 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 Boise averaging around $393.

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

The cheapest day to depart from Boise 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 Boise 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 Boise 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 Boise 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 Boise for as low as $385 on momondo.

How have Boise to Philadelphia flight prices changed over time?

As of December 2025, prices for Boise to Philadelphia flights are approximately 13% more expensive when compared to flights at the same time last year.

When to book flights from Boise to Philadelphia

Are you open to changing your travel dates? Check out the ideal times to fly from Boise to Philadelphia according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Boise to Philadelphia (BOI to PHL) flight deals and tips

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

Fastest flight time

6h 20m

Direct flights

None
The fastest flight from Boise to Philadelphia takes 6h 20m
There are no direct flights from Boise to Philadelphia. There are no popular flight routes from Boise to Philadelphia.
Search flight deals

  • How far is Boise Air Term. Gowen Fld to Philadelphia by plane?

    The straight-line distance from Boise Air Term. Gowen Fld to Philadelphia is 2106.8 mi. By plane, this route typically takes 6h 20m.

  • When did momondo last update prices for flights from Boise Air Term. Gowen Fld Airport to Philadelphia Airport?

    Prices for flights from Boise Air Term. Gowen Fld Airport to Philadelphia Airport are updated daily.

  • How many operators does momondo search for flights from Boise Air Term. Gowen Fld Airport to Philadelphia Airport?

  • How old do you have to be to fly from Boise Air Term. Gowen Fld Airport 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 Boise Air Term. Gowen Fld Airport to Philadelphia Airport.

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

    The required travel and health documents for your Philadelphia Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Philadelphia Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular airline from Boise to Philadelphia?

Best airlines flying from Boise to Philadelphia

Compare and see reviews for airlines that fly from Boise to Philadelphia with momondo
Airline
Rating
Free Cancellation
Price
FrontierPriceFrom $130Free CancellationRating
5.8
3,082 reviews
Search Frontier flights
DeltaPriceFrom $208Free CancellationRating
7.9
8,008 reviews
Search Delta flights
American AirlinesPriceFrom $319Free CancellationRating
7.2
11,049 reviews
Search American Airlines flights
United AirlinesPriceFrom $342Free CancellationRating
7.4
9,092 reviews
Search United Airlines flights
SouthwestPriceFrom $416Free CancellationRating
7.9
4,250 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
Ocean City
Wildwood Crest
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 Boise to Philadelphia?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Philadelphia from Boise.

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

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

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

Once you have performed a search for Boise to Philadelphia flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

If you are simply researching potential flights to Philadelphia, momondo offers a useful price alert feature which will track prices for flights to Philadelphia from Boise and alert you when they change.

An easier way to manage your Philadelphia trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
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