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Idaho

$58+ Cheap flights from Portland (PDX) 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 5/5. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — BOI
Apr 22 — Apr 291
Tue 4/22
Tue 4/29
1 adult, Economy
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Cheap flight deals from Portland to Idaho

Keep the following information in mind while searching for Portland to Idaho flight deals. Data was last updated April 17, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$102
(Kiwi.com)

One-way from

$58
(Kiwi.com)

Popular in

December

Cheapest in

April

Average price

$218

Good round-trip deal

$51 or less

Good one-way deal

$55 or less
Provider with most accurate pricing for Portland-Boise Air Term. Gowen Fld flight deals.
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Provider most trusted by Cheapflights users for Portland-Boise Air Term. Gowen Fld flights.
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From Portland to Idaho
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One-way flight from Portland to Idaho
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Highest demand for flights based on searches. 5% potential increase in price ($16 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($6 potential savings vs. average RT price).
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Average for round-trip flights in April 2025
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Price to beat on a round-trip flight from Portland to Idaho.
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Price to beat on a one-way flight from Portland to Idaho.
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Find flight deals from Portland to Idaho

Cheapest flights from Portland to Idaho
Explore the most affordable flight options available from Portland to Idaho. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 17, 2025.

This Kiwi.com deal was found by Cheapflights users on 4/17. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/161:19 pmPDX - IDA
Nonstop1h 36mAllegiant Air
Fri 7/45:04 pmIDA - PDX
Nonstop1h 37mAllegiant Air
Deal found 4/17$102
This Delta deal was found by Cheapflights users on 4/16. 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.
Wed 5/75:35 amPDX - BOI
1 stop3h 31mDelta
Wed 5/145:45 amBOI - PDX
1 stop3h 45mDelta
Deal found 4/16$137
This Southwest deal was found by Cheapflights users on 4/16. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/135:45 amPDX - BOI
1 stop5h 00mSouthwest
Tue 5/137:05 pmBOI - PDX
1 stop5h 00mSouthwest
Deal found 4/16$151
This Delta deal was found by Cheapflights users on 4/15. 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.
Sat 5/175:35 amPDX - GEG
1 stop4h 23mDelta
Sat 5/245:00 amGEG - PDX
1 stop3h 30mDelta
Deal found 4/15$157
This Alaska Airlines deal was found by Cheapflights users on 4/16. 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.
Fri 5/98:45 pmPDX - GEG
1 stop3h 14mAlaska Airlines
Sun 5/117:00 amGEG - PDX
1 stop2h 56mAlaska Airlines
Deal found 4/16$176
This United Airlines deal was found by Cheapflights users on 4/16. 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.
Wed 5/141:45 pmPDX - BOI
1 stop6h 54mUnited Airlines
Wed 5/212:00 pmBOI - PDX
1 stop7h 53mUnited Airlines
Deal found 4/16$177
This Hawaiian Airlines deal was found by Cheapflights users on 4/15. 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 Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/179:51 pmPDX - GEG
Nonstop1h 08mHawaiian Airlines
Sat 5/245:06 amGEG - PDX
Nonstop1h 12mHawaiian Airlines
Deal found 4/15$197
This Alaska Airlines deal was found by Cheapflights users on 4/16. 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.
Thu 5/155:30 pmPDX - BOI
1 stop4h 12mAlaska Airlines
Mon 5/197:45 amBOI - PDX
1 stop5h 33mAlaska Airlines
Deal found 4/16$197
This Expedia deal was found by Cheapflights users on 4/16. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/196:39 pmPDX - BOI
1 stop13h 02mMultiple Airlines
Sun 6/226:25 amBOI - PDX
1 stop4h 25mMultiple Airlines
Deal found 4/16$212
This Hawaiian Airlines deal was found by Cheapflights users on 4/16. 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 Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/39:49 pmPDX - BOI
Nonstop1h 10mHawaiian Airlines
Mon 6/96:44 pmBOI - PDX
1 stop2h 56mHawaiian Airlines
Deal found 4/16$227
This Mytrip deal was found by Cheapflights users on 4/16. 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.
Thu 5/2910:41 amPDX - GEG
1 stop23h 40mMultiple Airlines
Mon 6/26:03 pmGEG - PDX
2 stops22h 42mMultiple Airlines
Deal found 4/16$262
This Hawaiian Airlines deal was found by Cheapflights users on 4/17. 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 Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/194:00 pmPDX - IDA
1 stop5h 34mHawaiian Airlines
Mon 5/266:00 amIDA - PDX
1 stop3h 52mHawaiian Airlines
Deal found 4/17$290

Cheapflights Fare Finder

Customize your flight search to find flights from Portland 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 April 17, 2025.
Use the filters below to find and compare flights from Portland to Idaho that are best for you.

Fly from

Portland

Fly to

Idaho

Route

Depart

Return

Price

PortlandIdaho Falls

PDX - IDA

PDXIDA

Portland

Mon 6/16

1:19 pm-3:55 pm

Nonstop1h 36m

Idaho Falls Fanning Field

Fri 7/4

5:04 pm-5:41 pm

Nonstop1h 37m

$102

PortlandBoise

PDX - BOI

PDXBOI

Portland

Tue 6/3

5:40 pm-10:29 pm

1 stop3h 49m

Boise Air Term. Gowen Fld

Sat 6/7

4:59 pm-10:20 pm

1 stop6h 21m

$147

PortlandBoise

PDX - BOI

PDXBOI

Portland

Mon 5/19

6:25 am-2:45 pm

1 stop7h 20m

Boise Air Term. Gowen Fld

Tue 5/20

7:15 am-10:25 am

1 stop4h 10m

$154

PortlandSpokane

PDX - GEG

PDXGEG

Portland

Sat 5/17

5:35 am-9:58 am

1 stop4h 23m

Spokane

Sat 5/24

5:00 am-8:30 am

1 stop3h 30m

$157

PortlandSpokane

PDX - GEG

PDXGEG

Portland

Fri 5/9

8:45 pm-11:59 pm

1 stop3h 14m

Spokane

Sun 5/11

7:00 am-9:56 am

1 stop2h 56m

$176

PortlandSpokane

PDX - GEG

PDXGEG

Portland

Sat 5/17

9:51 pm-10:59 pm

Nonstop1h 08m

Spokane

Sat 5/24

5:06 am-6:18 am

Nonstop1h 12m

$197

PortlandBoise

PDX - BOI

PDXBOI

Portland

Thu 5/15

5:30 pm-11:45 pm

1 stop5h 15m

Boise Air Term. Gowen Fld

Mon 5/19

7:45 am-12:18 pm

1 stop5h 33m

$197

PortlandBoise

PDX - BOI

PDXBOI

Portland

Tue 5/27

2:30 pm-4:44 pm

Nonstop1h 14m

Boise Air Term. Gowen Fld

Fri 5/30

12:16 pm-4:45 pm

1 stop5h 29m

$230

PortlandBoise

PDX - BOI

PDXBOI

Portland

Thu 5/15

7:15 am-9:25 am

Nonstop1h 10m

Boise Air Term. Gowen Fld

Sun 5/18

5:30 am-5:50 am

Nonstop1h 20m

$254

PortlandSpokane

PDX - GEG

PDXGEG

Portland

Thu 5/29

10:41 am-10:21 am

1 stop23h 40m

Spokane

Mon 6/2

6:03 pm-4:45 pm

2 stops22h 42m

$262

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/16

Showing 1-10 of 53 results
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Best time to book a flight from Portland to Idaho

Have a flexible travel schedule? Discover the best time to fly to Idaho from Portland 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 Portland to Idaho

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

Currently, October is the cheapest month in which you can book a flight from Portland to Idaho (average of $314). Flying from Portland to Idaho in June is currently the most expensive (average of $419). 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 PDX to ID?

Find hourly flight availability from Portland 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 April 17, 2025.

When flying from Portland to Idaho, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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 April 17, 2025.
See what other customers who have flown with Alaska Airlines, Southwest and Delta from Portland to Idaho have to say. 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
9,887 reviews

Entertainment

7.1

Comfort

7.9

Crew

8.5

Overall

8.0

Food

7.1

Boarding

8.1

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
Alaska Airlines
8.0
Very good
9,887 reviews
Alaska Airlines
8.0
Very good
9,887 reviews

Entertainment

7.1

Comfort

7.9

Crew

8.5

Overall

8.0

Food

7.1

Boarding

8.1

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
Southwest
8.0
Very good
4,280 reviews
Alaska Airlines
8.0
Very good
9,887 reviews

Entertainment

7.1

Comfort

7.9

Crew

8.5

Overall

8.0

Food

7.1

Boarding

8.1

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
Delta
8.0
Very good
7,916 reviews
Alaska Airlines
8.0
Very good
9,887 reviews

Entertainment

7.1

Comfort

7.9

Crew

8.5

Overall

8.0

Food

7.1

Boarding

8.1

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
Hawaiian Airlines
7.9
Good
2,380 reviews
Alaska Airlines
8.0
Very good
9,887 reviews

Entertainment

7.1

Comfort

7.9

Crew

8.5

Overall

8.0

Food

7.1

Boarding

8.1

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
United Airlines
7.4
Good
8,667 reviews
Alaska Airlines
8.0
Very good
9,887 reviews

Entertainment

7.1

Comfort

7.9

Crew

8.5

Overall

8.0

Food

7.1

Boarding

8.1

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >

Related info for your journey

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

  • What airport do you fly from for flights from Portland to Idaho?

    For a flight from Portland to Idaho, you will be flying from Portland. Portland (PDX) is just 6.0 mi from the center of the city.

  • How popular is this Portland to Idaho flight route?

    This flight path from Portland to Idaho was viewed by 13 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

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

    The cheapest airlines for a one-way flight from Portland to Idaho are Allegiant Air ($58), Southwest ($76), and Delta ($89).

  • What are the most popular routes from Portland to Idaho?

    When deciding which route to take from Portland to Idaho consider Portland - Boise Air Term. Gowen Fld, Portland - Spokane or Portland - Jackson Hole as they are the most popular.

  • What are the most reliable airlines from Portland to Idaho?

    Consider Horizon Air (90%), Alaska Airlines (89%) or SkyWest Airlines (88%) when booking your flight. These represent the most reliable airlines when flying from Portland to Idaho.

  • What are the cheapest flights from Portland to Idaho?

    Looking for the cheapest flight from Portland to Idaho? While on average our users pay $246, our data indicates the cheapest price to be $68. The most popular route (Portland - Boise Air Term. Gowen Fld), is priced around $137.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Portland 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 Portland to Idaho?

    Currently, October is the cheapest month in which you can book a flight from Portland to Idaho (average of $314). Flying from Portland to Idaho in June is currently the most expensive (average of $419). 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.

See more FAQs

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Alternative routes for Portland 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 Portland to Idaho

Discover the top 5 airlines that operate flights from Portland 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 April 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$84Average$141FlexibilityNo cancel feeOn-time65%
Allegiant AirCheapest$85Average$117FlexibilityNo cancel feeOn-time88%
Hawaiian AirlinesCheapest$147Average$267FlexibilityNo cancel feeOn-time85%
DeltaCheapest$166Average$468FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$170Average$420FlexibilityNo cancel feeOn-time75%

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