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$112+ Cheap flights from Pennsylvania to Idaho

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/5. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — BOI
jul. 8 — jul. 151
mar. 7/8
mar. 7/15
1 adult, Economy
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Cheap flight deals from Pennsylvania to Idaho

Keep the following information in mind while searching for Pennsylvania to Idaho flight deals. Data was last updated julio 3, 2025.

Round-trip from

$251
(Delta)

One-way from

$112
(Priceline)

Popular in

November

Cheapest in

August

Average price

$457
From Pennsylvania to Idaho
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One-way flight from Pennsylvania to Idaho
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Highest demand for flights based on searches. 18% potential increase in price ($111 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($14 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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Find flight deals from Pennsylvania to Idaho

Cheapest flights from Pennsylvania to Idaho
Explore the most affordable flight options available from Pennsylvania to Idaho. Find the lowest fares from popular airlines and budget airlines, with prices last updated on julio 3, 2025.

This Delta deal was found by Cheapflights users on 7/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 8/234:40 pmJFK - GEG
1 stop9h 28mDelta
sáb. 8/301:00 pmGEG - JFK
1 stop8h 27mDelta
Deal found 7/1$251
This Delta deal was found by Cheapflights users on 7/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 10/44:59 pmDCA - GEG
1 stop9h 14mDelta
mar. 10/75:05 amGEG - DCA
1 stop7h 30mDelta
Deal found 7/1$259
This American Airlines deal was found by Cheapflights users on 7/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 8/165:00 amDCA - GEG
2 stops11h 07mAmerican Airlines
sáb. 9/137:00 amGEG - DCA
1 stop6h 29mAmerican Airlines
Deal found 7/2$264
This American Airlines deal was found by Cheapflights users on 7/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 8/161:18 pmIAD - GEG
2 stops12h 37mAmerican Airlines
sáb. 9/136:00 amGEG - IAD
1 stop7h 50mAmerican Airlines
Deal found 7/2$264
This Delta deal was found by Cheapflights users on 7/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 10/42:51 pmIAD - GEG
2 stops11h 22mDelta
mar. 10/75:00 pmGEG - IAD
2 stops13h 11mDelta
Deal found 7/1$269
This Delta deal was found by Cheapflights users on 7/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 8/236:45 amJFK - BOI
1 stop7h 10mDelta
sáb. 9/612:45 pmBOI - JFK
1 stop6h 44mDelta
Deal found 7/1$269
This Frontier deal was found by Cheapflights users on 7/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 8/127:00 amDCA - GEG
1 stop7h 06mFrontier
jue. 8/1411:58 amGEG - DCA
1 stop6h 59mFrontier
Deal found 7/2$275
This Alaska Airlines deal was found by Cheapflights users on 6/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 8/255:49 pmDCA - GEG
1 stop8h 22mAlaska Airlines
sáb. 8/306:25 amGEG - DCA
1 stop11h 34mAlaska Airlines
Deal found 6/30$287
This Alaska Airlines deal was found by Cheapflights users on 7/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 8/259:00 amIAD - GEG
1 stop8h 50mAlaska Airlines
mié. 9/37:44 pmGEG - IAD
1 stop8h 49mAlaska Airlines
Deal found 7/1$287
This Mytrip deal was found by Cheapflights users on 7/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 8/191:34 pmPHL - GEG
2 stops48h 23mFrontier
jue. 8/2811:52 amGEG - PHL
1 stop14h 02mFrontier
Deal found 7/2$292
This Alaska Airlines deal was found by Cheapflights users on 7/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 9/1011:30 amJFK - GEG
1 stop10h 20mAlaska Airlines
sáb. 9/132:36 pmGEG - JFK
1 stop14h 09mAlaska Airlines
Deal found 7/2$298
This American Airlines deal was found by Cheapflights users on 7/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 8/152:57 pmJFK - GEG
1 stop10h 58mAmerican Airlines
vie. 8/223:10 pmGEG - JFK
1 stop11h 20mAmerican Airlines
Deal found 7/1$300

Cheapflights Fare Finder

Customize your flight search to find flights from Pennsylvania to Idaho 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, Cheapflights users made 2,558,603 searches. Data last updated julio 3, 2025.
Use the filters below to find and compare flights from Pennsylvania to Idaho that are best for you.

Fly from

Pennsylvania

Fly to

Idaho

Route

Depart

Return

Price

New YorkSpokane

JFK - GEG

JFKGEG

New York John F Kennedy Intl

sáb. 8/23

4:40 pm-11:08 pm

1 stop9h 28m

Spokane

sáb. 8/30

1:00 pm-12:27 am

1 stop8h 27m

$251

Washington, D.C.Spokane

DCA - GEG

DCAGEG

Washington, D.C. Reagan-National

sáb. 10/4

4:59 pm-11:13 pm

1 stop9h 14m

Spokane

mar. 10/7

5:05 am-3:35 pm

1 stop7h 30m

$259

Washington, D.C.Spokane

DCA - GEG

DCAGEG

Washington, D.C. Reagan-National

sáb. 8/16

5:00 am-1:07 pm

2 stops11h 07m

Spokane

sáb. 9/13

7:00 am-4:29 pm

1 stop6h 29m

$264

Washington, D.C.Spokane

IAD - GEG

IADGEG

Washington, D.C. Dulles Intl

sáb. 8/16

1:18 pm-10:55 pm

2 stops12h 37m

Spokane

sáb. 9/13

6:00 am-4:50 pm

1 stop7h 50m

$264

Washington, D.C.Spokane

IAD - GEG

IADGEG

Washington, D.C. Dulles Intl

sáb. 10/4

2:51 pm-11:13 pm

2 stops11h 22m

Spokane

mar. 10/7

5:00 pm-9:11 am

2 stops13h 11m

$269

New YorkBoise

JFK - BOI

JFKBOI

New York John F Kennedy Intl

sáb. 8/23

6:45 am-11:55 am

1 stop7h 10m

Boise Air Term. Gowen Fld

sáb. 9/6

12:45 pm-9:29 pm

1 stop6h 44m

$269

Washington, D.C.Spokane

DCA - GEG

DCAGEG

Washington, D.C. Reagan-National

mar. 8/12

7:00 am-11:06 am

1 stop7h 06m

Spokane

jue. 8/14

11:58 am-9:57 pm

1 stop6h 59m

$275

Washington, D.C.Spokane

DCA - GEG

DCAGEG

Washington, D.C. Reagan-National

lun. 8/25

5:49 pm-11:11 pm

1 stop8h 22m

Spokane

mié. 9/3

7:00 am-9:59 pm

1 stop11h 59m

$287

Washington, D.C.Spokane

IAD - GEG

IADGEG

Washington, D.C. Dulles Intl

lun. 8/25

9:00 am-2:50 pm

1 stop8h 50m

Spokane

mié. 9/3

7:44 pm-7:33 am

1 stop8h 49m

$287

PhiladelphiaSpokane

PHL - GEG

PHLGEG

Philadelphia

mar. 8/19

1:34 pm-10:57 am

2 stops48h 23m

Spokane

jue. 8/28

11:52 am-4:54 am

1 stop14h 02m

$292

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/1

Showing 1-10 of 60 results
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Best time to book a flight from Pennsylvania to Idaho

Have a flexible travel schedule? Discover the best time to fly to Idaho from Pennsylvania with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Pennsylvania to Idaho

What is the cheapest month to book a flight from Pennsylvania to Idaho?

Currently, October is the cheapest month in which you can book a flight from Pennsylvania to Idaho (average of $314). Flying from Pennsylvania to Idaho in June is currently the most expensive (average of $398). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from PA to ID?

Find hourly flight availability from Pennsylvania to Idaho. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated julio 3, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Pennsylvania to Idaho as you normally would.

Reviews of airlines servicing Idaho

Get insights into the airlines that provide service to Idaho. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Idaho. Reviews last updated julio 3, 2025.
Read through reviews of airlines operating flights from Pennsylvania to Idaho, such as Alaska Airlines, Southwest, and Delta. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Overall

8.0

Comfort

7.8

Crew

8.5

Boarding

8.1

Food

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Overall

8.0

Comfort

7.8

Crew

8.5

Boarding

8.1

Food

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Southwest
8.0
Very good
4,270 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Overall

8.0

Comfort

7.8

Crew

8.5

Boarding

8.1

Food

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Delta
8.0
Very good
7,970 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Overall

8.0

Comfort

7.8

Crew

8.5

Boarding

8.1

Food

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Hawaiian Airlines
7.8
Good
2,545 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Overall

8.0

Comfort

7.8

Crew

8.5

Boarding

8.1

Food

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
United Airlines
7.4
Good
8,845 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Overall

8.0

Comfort

7.8

Crew

8.5

Boarding

8.1

Food

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Related info for your journey

Find useful and relevant information for your journey from Pennsylvania to Idaho. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What are the cheapest airlines to fly from Pennsylvania to Idaho one-way?

    The cheapest airline one-way is Frontier, with whom users have recently found tickets for as low as $112. However, be on the lookout for offers from American Airlines and Hawaiian Airlines, as they are both options that can get you from Pennsylvania to Idaho for a low price.

  • Can I find deals for flights from Pennsylvania to Idaho that include hotel bookings?

    Yes. In addition to deals on Pennsylvania to Idaho flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Pennsylvania to Idaho?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Pennsylvania to Idaho.

  • Can I find deals for business class flights from Pennsylvania to Idaho?

    Yes. Cheapflights offers flight deals from Pennsylvania to Idaho by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Pennsylvania to Idaho?

    Currently, October is the cheapest month in which you can book a flight from Pennsylvania to Idaho (average of $314). Flying from Pennsylvania to Idaho in June is currently the most expensive (average of $398). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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Alternative routes for Pennsylvania to Idaho

See prices for flight routes from nearby airports that may be better suited for you.
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Top 5 airlines flying from Pennsylvania to Idaho

Discover the top 5 airlines that operate flights from Pennsylvania to Idaho. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated julio 3, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$160Average$367FlexibilityNo cancel feeOn-time65%
American AirlinesCheapest$232Average$562FlexibilityNo cancel feeOn-time71%
DeltaCheapest$277Average$555FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$308Average$645FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$362Average$432FlexibilityNo cancel feeOn-time63%

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