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Idaho

$76+ 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 8/19. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — BOI
Aug 3 — Aug 101
Sun 8/3
Sun 8/10
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 July 29, 2025.

Round-trip from

$137
(Hawaiian Airlines)

One-way from

$76
(Southwest)

Popular in

December

Cheapest in

April

Average price

$278

Good round-trip deal

$68 or less

Good one-way deal

$114 or less
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 July 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 July 29, 2025.

This Hawaiian Airlines deal was found by Cheapflights users on 7/28. 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 8/239:59 pmPDX - GEG
Nonstop1h 12mHawaiian Airlines
Wed 8/278:48 amGEG - PDX
Nonstop1h 11mHawaiian Airlines
Deal found 7/28$137
This Alaska Airlines deal was found by Cheapflights users on 7/28. 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.
Tue 8/1910:30 amPDX - GEG
Nonstop1h 11mAlaska Airlines
Sat 8/235:06 amGEG - PDX
Nonstop1h 12mAlaska Airlines
Deal found 7/28$138
This Hawaiian Airlines deal was found by Cheapflights users on 7/28. 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.
Wed 8/271:24 pmPDX - BOI
1 stop3h 52mHawaiian Airlines
Wed 9/34:00 pmBOI - PDX
Nonstop1h 22mHawaiian Airlines
Deal found 7/28$147
This Delta deal was found by Cheapflights users on 7/28. 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.
Tue 8/265:30 amPDX - BOI
1 stop6h 36mDelta
Tue 9/25:45 amBOI - PDX
1 stop3h 30mDelta
Deal found 7/28$152
This Alaska Airlines deal was found by Cheapflights users on 7/29. 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 8/212:30 pmPDX - BOI
Nonstop1h 20mAlaska Airlines
Sun 8/246:00 amBOI - PDX
Nonstop1h 20mAlaska Airlines
Deal found 7/29$157
This Southwest deal was found by Cheapflights users on 7/28. 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 10/216:45 amPDX - BOI
1 stop6h 40mSouthwest
Fri 10/243:55 pmBOI - PDX
1 stop4h 05mSouthwest
Deal found 7/28$164
This Gotogate deal was found by Cheapflights users on 7/27. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/81:38 pmPDX - IDA
Nonstop1h 36mAllegiant Air
Mon 8/115:04 pmIDA - PDX
Nonstop1h 37mAllegiant Air
Deal found 7/27$165
This FlightHub deal was found by Cheapflights users on 7/28. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/812:07 pmPDX - BOI
1 stop7h 14mSpirit Airlines
Fri 9/129:16 pmBOI - PDX
1 stop22h 48mSpirit Airlines
Deal found 7/28$169
This FlightHub deal was found by Cheapflights users on 7/27. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/27:01 pmPDX - GEG
1 stop16h 02mFrontier
Tue 8/511:51 amGEG - PDX
1 stop11h 33mFrontier
Deal found 7/27$185
This Delta deal was found by Cheapflights users on 7/29. 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.
Tue 8/263:18 pmPDX - GEG
1 stop5h 53mDelta
Tue 9/25:00 amGEG - PDX
1 stop3h 15mDelta
Deal found 7/29$193
This FlightHub deal was found by Cheapflights users on 7/27. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/612:25 pmPDX - BOI
1 stop22h 21mFrontier
Sun 8/1012:36 pmBOI - PDX
1 stop12h 40mFrontier
Deal found 7/27$195
This Mytrip deal was found by Cheapflights users on 7/27. 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.
Mon 8/111:38 pmPDX - IDA
Nonstop1h 36mMultiple Airlines
Fri 8/157:31 pmIDA - PDX
2 stops24h 26mMultiple Airlines
Deal found 7/27$219

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 July 29, 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

PortlandSpokane

PDX - GEG

PDXGEG

Portland

Sat 8/23

9:59 pm-11:11 pm

Nonstop1h 12m

Spokane

Wed 8/27

8:48 am-9:59 am

Nonstop1h 11m

$137

PortlandSpokane

PDX - GEG

PDXGEG

Portland

Tue 8/19

10:30 am-11:41 am

Nonstop1h 11m

Spokane

Sat 8/23

5:06 am-6:18 am

Nonstop1h 12m

$138

PortlandBoise

PDX - BOI

PDXBOI

Portland

Wed 8/27

1:24 pm-6:16 pm

1 stop3h 52m

Boise Air Term. Gowen Fld

Wed 9/3

4:00 pm-4:22 pm

Nonstop1h 22m

$147

PortlandBoise

PDX - BOI

PDXBOI

Portland

Tue 8/26

5:30 am-1:06 pm

1 stop6h 36m

Boise Air Term. Gowen Fld

Tue 9/2

5:45 am-8:15 am

1 stop3h 30m

$152

PortlandBoise

PDX - BOI

PDXBOI

Portland

Thu 8/21

2:30 pm-4:50 pm

Nonstop1h 20m

Boise Air Term. Gowen Fld

Sun 8/24

6:00 am-6:20 am

Nonstop1h 20m

$157

PortlandBoise

PDX - BOI

PDXBOI

Portland

Tue 10/21

6:45 am-2:25 pm

1 stop6h 40m

Boise Air Term. Gowen Fld

Fri 10/24

3:55 pm-7:00 pm

1 stop4h 05m

$164

PortlandIdaho Falls

PDX - IDA

PDXIDA

Portland

Fri 8/8

1:38 pm-4:14 pm

Nonstop1h 36m

Idaho Falls Fanning Field

Mon 8/11

5:04 pm-5:41 pm

Nonstop1h 37m

$165

PortlandBoise

PDX - BOI

PDXBOI

Portland

Mon 9/8

12:07 pm-8:21 pm

1 stop7h 14m

Boise Air Term. Gowen Fld

Fri 9/12

9:16 pm-7:04 pm

1 stop22h 48m

$169

PortlandSpokane

PDX - GEG

PDXGEG

Portland

Sat 8/9

7:01 pm-11:03 am

1 stop16h 02m

Spokane

Tue 8/12

11:51 am-11:24 pm

1 stop11h 33m

$185

PortlandSpokane

PDX - GEG

PDXGEG

Portland

Sat 8/23

5:45 pm-9:11 pm

1 stop3h 26m

Spokane

Wed 8/27

6:10 am-10:34 am

1 stop4h 24m

$194

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/29

Showing 1-10 of 54 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 $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 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 July 29, 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.

Weekly flight availability from Portland to Idaho

Explore weekly flight availability from Portland to Idaho. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated July 29, 2025.

The most flights from PDX to USID are scheduled on a Tuesday (15 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (12 on average).

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 July 29, 2025.
Get a feel of what it's like to fly with Alaska Airlines, Southwest, and Delta from Portland to Idaho by reading reviews from past customers. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Entertainment

7.1

Boarding

8.1

Food

7.1

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Entertainment

7.1

Boarding

8.1

Food

7.1

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Southwest
8.0
Very good
4,238 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Entertainment

7.1

Boarding

8.1

Food

7.1

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Delta
8.0
Very good
7,977 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Entertainment

7.1

Boarding

8.1

Food

7.1

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Hawaiian Airlines
7.8
Good
2,605 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Entertainment

7.1

Boarding

8.1

Food

7.1

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
United Airlines
7.4
Good
8,899 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Entertainment

7.1

Boarding

8.1

Food

7.1

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.

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 7 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 Southwest ($76), Alaska Airlines ($79), and Hawaiian Airlines ($82).

  • 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 SkyWest Airlines (94%), Horizon Air (85%) or Singapore Airlines (84%) 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 $193, our data indicates the cheapest price to be $98. The most popular route (Portland - Boise Air Term. Gowen Fld), is priced around $117.

  • 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 $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 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 July 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
Allegiant AirCheapest$68Average$110FlexibilityNo cancel feeOn-time88%
Spirit AirlinesCheapest$91Average$158FlexibilityNo cancel feeOn-time65%
Hawaiian AirlinesCheapest$150Average$318FlexibilityNo cancel feeOn-time85%
Alaska AirlinesCheapest$157Average$400FlexibilityNo cancel feeOn-time75%
DeltaCheapest$166Average$424FlexibilityNo cancel feeOn-timeN/A

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