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$76+ Cheap flights from Idaho to Portland (PDX)

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 9/17. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — PDX
Aug 27 — Sep 31
Wed 8/27
Wed 9/3
1 adult, Economy
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Cheap flight deals from Idaho to Portland

Keep the following information in mind while searching for Idaho to Portland flight deals. Data was last updated August 22, 2025.

Round-trip from

$137
(Alaska Airlines)

One-way from

$76
(Southwest)

Popular in

November

Cheapest in

August

Average price

$203

Good round-trip deal

$75 or less

Good one-way deal

$95 or less
From Idaho to Portland
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One-way flight from Idaho to Portland
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Highest demand for flights based on searches. 14% potential increase in price ($41 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($7 potential savings vs. average RT price).
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Average for round-trip flights in August 2025
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Price to beat on a round-trip flight from Idaho to Portland.
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Price to beat on a one-way flight from Idaho to Portland.
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Find flight deals from Idaho to Portland

Cheapest flights from Idaho to Portland
Explore the most affordable flight options available from Idaho to Portland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 22, 2025.

This Kiwi.com deal was found by Cheapflights users on 8/19. 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.
Fri 12/53:26 pmIDA - PDX
Nonstop1h 45mAllegiant Air
Mon 12/812:01 pmPDX - IDA
Nonstop1h 35mAllegiant Air
Deal found 8/19$109
This Alaska Airlines deal was found by Cheapflights users on 8/21. 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.
Wed 10/156:00 amBOI - PDX
Nonstop1h 20mAlaska Airlines
Mon 10/209:40 pmPDX - BOI
Nonstop1h 17mAlaska Airlines
Deal found 8/21$137
This Hawaiian Airlines deal was found by Cheapflights users on 8/19. 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 10/157:37 pmGEG - PDX
Nonstop1h 13mHawaiian Airlines
Tue 10/2110:34 amPDX - GEG
Nonstop1h 05mHawaiian Airlines
Deal found 8/19$137
This SmartFares deal was found by Cheapflights users on 8/21. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/138:48 amGEG - PDX
Nonstop1h 11mAlaska Airlines
Sun 9/149:59 pmPDX - GEG
Nonstop1h 12mAlaska Airlines
Deal found 8/21$140
This Hawaiian Airlines deal was found by Cheapflights users on 8/19. 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.
Fri 10/246:59 pmBOI - PDX
1 stop2h 51mHawaiian Airlines
Wed 10/299:36 pmPDX - BOI
Nonstop1h 23mHawaiian Airlines
Deal found 8/19$147
This Hawaiian Airlines deal was found by Cheapflights users on 8/19. 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 10/255:05 amGEG - PDX
Nonstop1h 15mHawaiian Airlines
Sat 11/12:30 pmPDX - GEG
Nonstop1h 14mHawaiian Airlines
Deal found 8/19$147
This Southwest deal was found by Cheapflights users on 8/21. 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 10/142:35 pmBOI - PDX
1 stop6h 05mSouthwest
Mon 10/206:20 pmPDX - BOI
1 stop4h 00mSouthwest
Deal found 8/21$151
This Southwest deal was found by Cheapflights users on 8/20. 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 9/306:00 amBOI - PDX
2 stops8h 40mSouthwest
Sat 10/45:05 amPDX - BOI
1 stop8h 00mSouthwest
Deal found 8/20$156
This Booking.com deal was found by Cheapflights users on 8/20. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/215:22 pmIDA - PDX
Nonstop1h 45mAllegiant Air
Mon 11/241:54 pmPDX - IDA
Nonstop1h 38mAllegiant Air
Deal found 8/20$156
This Hawaiian Airlines deal was found by Cheapflights users on 8/21. 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.
Thu 9/114:00 pmBOI - PDX
Nonstop1h 22mHawaiian Airlines
Mon 9/159:40 pmPDX - BOI
Nonstop1h 19mHawaiian Airlines
Deal found 8/21$157
This Delta deal was found by Cheapflights users on 8/21. 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 10/155:05 amGEG - PDX
1 stop3h 31mDelta
Tue 10/215:30 amPDX - GEG
1 stop5h 06mDelta
Deal found 8/21$157
This Hawaiian Airlines deal was found by Cheapflights users on 8/21. 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 9/176:00 amBOI - PDX
Nonstop1h 20mHawaiian Airlines
Sun 9/219:40 pmPDX - BOI
Nonstop1h 19mHawaiian Airlines
Deal found 8/21$158

Cheapflights Fare Finder

 
Customize your flight search to find flights from Idaho to Portland 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 August 22, 2025.
Use the filters below to find and compare flights from Idaho to Portland that are best for you.

Fly from

Idaho

Fly to

Portland

Route

Depart

Return

Price

BoisePortland

BOI - PDX

BOIPDX

Boise Air Term. Gowen Fld

Wed 10/15

6:00 am-6:20 am

Nonstop1h 20m

Portland

Mon 10/20

9:40 pm-11:57 pm

Nonstop1h 17m

$137

BoisePortland

BOI - PDX

BOIPDX

Boise Air Term. Gowen Fld

Tue 9/30

5:45 am-10:27 am

1 stop5h 42m

Portland

Sat 10/4

3:35 pm-8:20 pm

1 stop3h 45m

$137

BoisePortland

BOI - PDX

BOIPDX

Boise Air Term. Gowen Fld

Sat 9/13

6:00 am-6:20 am

Nonstop1h 20m

Portland

Sun 9/14

7:02 am-9:20 am

Nonstop1h 18m

$137

BoisePortland

BOI - PDX

BOIPDX

Boise Air Term. Gowen Fld

Wed 10/15

7:40 am-10:30 am

1 stop3h 50m

Portland

Tue 10/21

5:50 pm-12:08 am

1 stop5h 18m

$137

BoisePortland

BOI - PDX

BOIPDX

Boise Air Term. Gowen Fld

Tue 10/14

4:01 pm-4:22 pm

Nonstop1h 21m

Portland

Mon 10/20

9:40 pm-11:57 pm

Nonstop1h 17m

$137

BoisePortland

BOI - PDX

BOIPDX

Boise Air Term. Gowen Fld

Fri 9/12

6:00 am-6:20 am

Nonstop1h 20m

Portland

Sat 9/13

2:30 pm-4:50 pm

Nonstop1h 20m

$137

BoisePortland

BOI - PDX

BOIPDX

Boise Air Term. Gowen Fld

Wed 9/17

7:30 am-10:27 am

1 stop3h 57m

Portland

Wed 9/24

7:10 pm-12:15 am

1 stop4h 05m

$137

BoisePortland

BOI - PDX

BOIPDX

Boise Air Term. Gowen Fld

Wed 10/15

6:00 am-6:20 am

Nonstop1h 20m

Portland

Sun 10/19

9:40 pm-11:57 pm

Nonstop1h 17m

$137

SpokanePortland

GEG - PDX

GEGPDX

Spokane

Wed 10/15

7:37 pm-8:50 pm

Nonstop1h 13m

Portland

Tue 10/21

10:34 am-11:39 am

Nonstop1h 05m

$137

BoisePortland

BOI - PDX

BOIPDX

Boise Air Term. Gowen Fld

Wed 9/10

5:47 am-8:15 am

1 stop3h 28m

Portland

Wed 9/17

7:15 am-1:23 pm

1 stop5h 08m

$137

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/20

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

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

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

Currently, November is the cheapest month in which you can book a flight from Idaho to Portland (average of $277). Flying from Idaho to Portland in March is currently the most expensive (average of $368). 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 ID to PDX?

Find hourly flight availability from Idaho to Portland. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated August 22, 2025.

When flying from Idaho to Portland, 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 Idaho to Portland

Explore weekly flight availability from Idaho to Portland. 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 August 22, 2025.

The most flights from USID to PDX are scheduled on a Thursday (12 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (7 on average).

Related info for your journey

Find useful and relevant information for your journey from Idaho to Portland. 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 into for flights to Portland from Idaho?

    Portland (PDX), located 6.0 mi from the city center, is the airport you fly into when you book flights from Idaho to Portland.

  • How popular is this Idaho to Portland flight route?

    This flight path from Idaho to Portland was viewed by 25 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

  • How long is the flight from Idaho to Portland?

    Alaska Airlines, Delta, and Hawaiian Airlines can get you from Idaho to Portland in just under 1h 20m. Your travel time can differ by up to 4h 22m. There are 343 mi between Idaho and Portland. This flight may include one or multiple stops.

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

    To fly one-way, consider booking your trip with Southwest, which is currently one of the cheapest options available, starting at $76. Alaska Airlines flights start at $79 while deals on Frontier start at $84 one-way.

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

    While some choose either Spokane - Portland or Idaho Falls Fanning Field - Portland, Boise Air Term. Gowen Fld - Portland is the most popular route from Idaho to Portland.

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

    Consider SkyWest Airlines (94%), Condor (94%) or Horizon Air (92%) when booking your flight. These represent the most reliable airlines when flying from Idaho to Portland.

  • What are the cheapest flights from Idaho to Portland?

    Looking for the cheapest flight from Idaho to Portland? While on average our users pay $291, our data indicates the cheapest price to be $99. The most popular route (Boise Air Term. Gowen Fld - Portland), is priced around $117.

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

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

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

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

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

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

    Currently, November is the cheapest month in which you can book a flight from Idaho to Portland (average of $277). Flying from Idaho to Portland in March is currently the most expensive (average of $368). 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

Traveling to a place near Portland?

Book flights to Portland if you plan to visit one of these locations
Vancouver
Seaside
Beaverton
Clackamas
McMinnville
Lake Oswego
Hillsboro
Cannon Beach
Long Beach
Longview
Tigard
Depoe Bay
Stevenson
Wilsonville
Pacific City
Troutdale
Tillamook
Gresham
Lincoln City
Silverton

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Top 6 airlines flying from Idaho to Portland

Discover the top 6 airlines that operate flights from Idaho to Portland. 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 August 22, 2025.
AirlineCheapestAverageFlexibilityOn-time
Allegiant AirCheapest$51Average$109FlexibilityNo cancel feeOn-time88%
Spirit AirlinesCheapest$68Average$155FlexibilityNo cancel feeOn-time65%
Hawaiian AirlinesCheapest$137Average$219FlexibilityNo cancel feeOn-time85%
Alaska AirlinesCheapest$157Average$336FlexibilityNo cancel feeOn-time75%
DeltaCheapest$159Average$372FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$176Average$286FlexibilityNo cancel feeOn-time69%

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