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$100+ 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 8/26. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — BOI
יוני 23 — יוני 301
ב' 6/23
ב' 6/30
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 יוני 18, 2025.

Round-trip from

$243
(Cheapflightsfares)

One-way from

$100
(Delta)

Popular in

November

Cheapest in

September

Average price

$473
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. 3% potential price decrease ($15 potential savings vs. average RT price).
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Average for round-trip flights in June 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 יוני 18, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 6/16. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ב' 8/117:20 amEWR - BOI
1 stop13h 32mSpirit Airlines
ו' 8/157:30 pmBOI - EWR
1 stop8h 20mSpirit Airlines
Deal found 6/16$243
This Alaska Airlines deal was found by Cheapflights users on 6/16. 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.
ג' 8/264:43 pmEWR - BOI
1 stop9h 00mAlaska Airlines
ג' 9/95:45 pmBOI - EWR
1 stop10h 14mAlaska Airlines
Deal found 6/16$258
This Delta deal was found by Cheapflights users on 6/17. 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.
ש' 8/236:52 pmEWR - BOI
1 stop7h 04mDelta
ש' 9/65:30 amBOI - EWR
1 stop6h 29mDelta
Deal found 6/17$259
This American Airlines deal was found by Cheapflights users on 6/16. 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.
ש' 11/810:26 amEWR - BOI
2 stops12h 52mAmerican Airlines
ג' 11/117:21 amBOI - EWR
2 stops10h 24mAmerican Airlines
Deal found 6/16$269
This Delta deal was found by Cheapflights users on 6/16. 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.
ג' 8/261:55 pmJFK - BOI
1 stop11h 02mDelta
ד' 9/31:30 pmBOI - JFK
1 stop9h 36mDelta
Deal found 6/16$269
This American Airlines deal was found by Cheapflights users on 6/16. 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.
ו' 9/512:31 pmEWR - JAC
1 stop9h 28mAmerican Airlines
ג' 9/93:25 pmJAC - EWR
1 stop6h 34mAmerican Airlines
Deal found 6/16$289
This Mytrip deal was found by Cheapflights users on 6/16. 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.
ה' 8/216:55 amEWR - BOI
1 stop13h 31mMultiple Airlines
א' 8/246:48 pmBOI - EWR
2 stops20h 06mMultiple Airlines
Deal found 6/16$292
This Alaska Airlines deal was found by Cheapflights users on 6/16. 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.
ג' 9/27:29 amJFK - BOI
1 stop9h 31mAlaska Airlines
ה' 9/48:18 pmBOI - JFK
1 stop17h 22mAlaska Airlines
Deal found 6/16$292
This United Airlines deal was found by Cheapflights users on 6/16. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ו' 7/116:00 amEWR - BOI
1 stop7h 43mUnited Airlines
ג' 8/52:39 pmBOI - EWR
1 stop8h 26mUnited Airlines
Deal found 6/16$294
This American Airlines deal was found by Cheapflights users on 6/16. 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.
א' 8/175:20 pmDCA - GEG
1 stop8h 16mAmerican Airlines
ו' 8/221:08 pmGEG - DCA
1 stop7h 42mAmerican Airlines
Deal found 6/16$298
This Delta deal was found by Cheapflights users on 6/17. 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.
ש' 8/301:16 pmEWR - JAC
1 stop8h 37mDelta
ה' 9/46:52 pmJAC - EWR
1 stop9h 28mDelta
Deal found 6/17$299
This Cheapflightsfares deal was found by Cheapflights users on 6/16. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ג' 7/87:00 amDCA - GEG
1 stop7h 06mFrontier
ג' 7/2211:51 amGEG - DCA
1 stop7h 06mFrontier
Deal found 6/16$301

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 יוני 18, 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

NewarkBoise

EWR - BOI

EWRBOI

Newark

ב' 8/11

7:20 am-6:52 pm

1 stop13h 32m

Boise Air Term. Gowen Fld

ו' 8/15

7:30 pm-5:50 am

1 stop8h 20m

$243

NewarkBoise

EWR - BOI

EWRBOI

Newark

ג' 8/26

4:43 pm-11:43 pm

1 stop9h 00m

Boise Air Term. Gowen Fld

ג' 9/9

5:45 pm-5:59 am

1 stop10h 14m

$258

NewarkBoise

EWR - BOI

EWRBOI

Newark

ש' 8/23

6:52 pm-11:56 pm

1 stop7h 04m

Boise Air Term. Gowen Fld

ש' 9/6

3:06 pm-11:25 pm

1 stop6h 19m

$259

New YorkBoise

JFK - BOI

JFKBOI

New York John F Kennedy Intl

ג' 8/26

11:25 am-4:57 pm

1 stop7h 32m

Boise Air Term. Gowen Fld

ש' 9/6

1:35 pm-1:06 am

1 stop9h 31m

$269

NewarkJackson

EWR - JAC

EWRJAC

Newark

ו' 9/5

12:31 pm-7:59 pm

1 stop9h 28m

Jackson Hole

ג' 9/9

3:25 pm-11:59 pm

1 stop6h 34m

$289

NewarkBoise

EWR - BOI

EWRBOI

Newark

ה' 8/21

6:55 am-6:26 pm

1 stop13h 31m

Boise Air Term. Gowen Fld

א' 8/24

6:48 pm-4:54 pm

2 stops20h 06m

$292

New YorkBoise

JFK - BOI

JFKBOI

New York John F Kennedy Intl

ג' 9/2

7:29 am-3:00 pm

1 stop9h 31m

Boise Air Term. Gowen Fld

ה' 9/4

8:18 pm-3:40 pm

1 stop17h 22m

$292

NewarkBoise

EWR - BOI

EWRBOI

Newark

ו' 7/11

6:00 am-11:43 am

1 stop7h 43m

Boise Air Term. Gowen Fld

ג' 8/5

2:39 pm-1:05 am

1 stop8h 26m

$294

Washington, D.C.Spokane

DCA - GEG

DCAGEG

Washington, D.C. Reagan-National

א' 8/17

5:20 pm-10:36 pm

1 stop8h 16m

Spokane

ו' 8/22

1:08 pm-11:50 pm

1 stop7h 42m

$298

NewarkJackson

EWR - JAC

EWRJAC

Newark

ש' 8/30

1:16 pm-7:53 pm

1 stop8h 37m

Jackson Hole

ה' 9/4

6:52 pm-6:20 am

1 stop9h 28m

$299

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/16

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 $396). 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 יוני 18, 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.

Rainfall in Idaho by month

Plan your trip to Idaho by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Idaho ranges from 0.2 - 1.6 inches per month. December is typically the wettest month, when rainfall can reach 1.6 in. August is typically the driest time to visit Idaho when rainfall is around 0.2 in.

Temperature in Idaho by month

Plan your trip to Idaho by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Idaho, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 75.2 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 30.2 F).

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 יוני 18, 2025.
To help decide which airline to fly from Pennsylvania to Idaho, see what other customers have to say about Alaska Airlines, Southwest and Delta. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Comfort

7.8

Boarding

8.1

Overall

8.0

Food

7.1

Entertainment

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

Crew

8.5

Comfort

7.8

Boarding

8.1

Overall

8.0

Food

7.1

Entertainment

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
4,280 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Comfort

7.8

Boarding

8.1

Overall

8.0

Food

7.1

Entertainment

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
7,965 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Comfort

7.8

Boarding

8.1

Overall

8.0

Food

7.1

Entertainment

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
2,507 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Comfort

7.8

Boarding

8.1

Overall

8.0

Food

7.1

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Qatar Airways
7.4
Good
3,591 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Comfort

7.8

Boarding

8.1

Overall

8.0

Food

7.1

Entertainment

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 Delta, with whom users have recently found tickets for as low as $100. However, be on the lookout for offers from Frontier and Spirit 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 $396). 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 יוני 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$160Average$382FlexibilityNo cancel feeOn-time65%
American AirlinesCheapest$232Average$567FlexibilityNo cancel feeOn-time71%
DeltaCheapest$277Average$549FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$308Average$621FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$362Average$432FlexibilityNo cancel feeOn-time63%

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