PHL

$99 Find Cheap Flights from Idaho to Philadelphia - Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight to Philadelphia departing on 8/18. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Flight Deals

Cheap Flights from Idaho to Philadelphia

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Idaho to Philadelphia that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Idaho to Philadelphia

Wed, Sep 2 - Wed, Sep 9
Delta Logo
5:59 pm - 5:50 am
BOI
-
PHL
9h 51m
1 stop
Delta Logo
6:30 pm - 11:29 pm
PHL
-
BOI
6h 59m
1 stop
$197Delta
Wed, Sep 2 - Sat, Sep 5
Delta Logo
5:59 pm - 5:50 am
BOI
-
PHL
9h 51m
1 stop
Delta Logo
7:05 am - 3:18 pm
PHL
-
BOI
10h 13m
1 stop
$209Delta
Sat, Aug 22 - Mon, Aug 24
American Airlines Logo
2:58 pm - 11:59 pm
BOI
-
PHL
7h 01m
1 stop
American Airlines Logo
5:43 am - 2:20 pm
PHL
-
BOI
10h 37m
1 stop
$221American Airlines
Wed, Sep 2 - Wed, Sep 9
Southwest Logo
6:00 am - 6:00 pm
BOI
-
PHL
10h 00m
2 stops
Southwest Logo
5:10 pm - 11:10 pm
PHL
-
BOI
8h 00m
1 stop
$225Southwest
Wed, Sep 2 - Wed, Sep 9
Southwest Logo
6:00 am - 6:00 pm
BOI
-
PHL
10h 00m
2 stops
Southwest Logo
3:00 pm - 11:10 pm
PHL
-
BOI
10h 10m
2 stops
$231Southwest
Thu, Jul 30 - Wed, Aug 12
Delta Logo
11:10 pm - 9:31 am
BOI
-
PHL
8h 21m
1 stop
Delta Logo
7:05 am - 3:18 pm
PHL
-
BOI
10h 13m
1 stop
$238Delta
Tue, Sep 1 - Wed, Sep 9
Frontier Logo
1:04 pm - 11:47 am
BOI
-
PHL
20h 43m
1 stop
Frontier Logo
8:44 pm - 12:04 pm
PHL
-
BOI
17h 20m
1 stop
$240Frontier
Thu, Jul 2 - Sat, Jul 4
American Airlines Logo
12:49 pm - 12:35 am
GEG
-
PHL
8h 46m
1 stop
American Airlines Logo
7:42 am - 1:09 pm
PHL
-
GEG
8h 27m
1 stop
$279American Airlines
Fri, Oct 2 - Mon, Oct 5
Alaska Airlines Logo
3:57 pm - 3:06 pm
IDA
-
PHL
21h 09m
1 stop
Alaska Airlines Logo
6:39 pm - 3:35 pm
PHL
-
IDA
22h 56m
1 stop
$399Alaska Airlines
Thu, Sep 17 - Wed, Sep 23
Alaska Airlines Logo
10:28 am - 5:40 am
SUN
-
PHL
17h 12m
1 stop
Alaska Airlines Logo
7:00 am - 9:46 am
PHL
-
SUN
28h 46m
1 stop
$430Alaska Airlines
Useful Info

Good to know

Low seasonJanuary
Cheapest flight$99
Best time to beat the crowds with an average 4% drop in price.
Most popular time to fly and prices are also 5% lower on average.
Flight from Spokane to Philadelphia

FAQs for booking flights from Idaho to Philadelphia

  • How does KAYAK find such low prices on flights from Idaho to Philadelphia?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Idaho to Philadelphia.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Idaho to Philadelphia?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Philadelphia from Idaho is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Idaho to Philadelphia?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Philadelphia with an airline and back to Idaho with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Idaho to Philadelphia?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Philadelphia from Idaho up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Traveling to a place near Philadelphia?

Book flights to Philadelphia if you plan to visit one of these locations
Wildwood Crest
Newark
Essington
Vineland
North Wildwood
West Chester
Elkton
Willow Grove
Pottstown
Kennett Square
Middletown
Somers Point
Voorhees
Wyomissing
Glen Mills
Millville
Blackwood
Phoenixville
Bird in Hand
Strasburg

Everything you need to know for your flight to Philadelphia

Information on the airport you'll fly into in Philadelphia

Philadelphia (PHL)