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$56+ 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 12/12. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — PDX
ene. 3 — ene. 101
sáb. 1/3
sáb. 1/10
1 adult, Economy
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Cheap 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 diciembre 4, 2025.

This Alaska Airlines deal was found by Cheapflights users on 12/3. 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. 12/315:43 amBOI - PDX
Nonstop1h 37mAlaska Airlines
mié. 1/75:45 pmPDX - BOI
Nonstop1h 24mAlaska Airlines
Deal found 12/3$137
This Kiwi.com deal was found by Cheapflights users on 12/4. 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.
jue. 12/258:21 pmBOI - PDX
Nonstop1h 29mAlaska Airlines
mié. 12/319:40 pmPDX - BOI
Nonstop1h 17mAlaska Airlines
Deal found 12/4$146
This Alaska Airlines deal was found by Cheapflights users on 12/4. 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.
jue. 12/258:21 pmBOI - PDX
Nonstop1h 29mAlaska Airlines
sáb. 1/39:40 pmPDX - BOI
Nonstop1h 17mAlaska Airlines
Deal found 12/4$147
This Delta deal was found by Cheapflights users on 12/2. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 12/243:32 pmGEG - PDX
1 stop5h 04mDelta
mié. 12/316:50 amPDX - GEG
1 stop5h 39mDelta
Deal found 12/2$147
This Alaska Airlines deal was found by Cheapflights users on 12/3. 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. 12/315:43 amBOI - PDX
Nonstop1h 37mAlaska Airlines
mar. 1/61:51 pmPDX - BOI
1 stop8h 46mAlaska Airlines
Deal found 12/3$152
This Kiwi.com deal was found by Cheapflights users on 12/2. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 12/53:26 pmIDA - PDX
Nonstop1h 45mAllegiant Air
lun. 12/812:01 pmPDX - IDA
Nonstop1h 35mAllegiant Air
Deal found 12/2$152
This Kiwi.com deal was found by Cheapflights users on 12/4. 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.
jue. 12/258:21 pmBOI - PDX
Nonstop1h 29mAlaska Airlines
dom. 1/49:40 pmPDX - BOI
Nonstop1h 17mAlaska Airlines
Deal found 12/4$156
This Alaska Airlines deal was found by Cheapflights users on 12/2. 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.
jue. 12/254:16 pmBOI - PDX
Nonstop1h 28mAlaska Airlines
jue. 1/110:32 amPDX - BOI
Nonstop1h 10mAlaska Airlines
Deal found 12/2$157
This Delta deal was found by Cheapflights users on 12/2. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 12/245:40 amBOI - PDX
1 stop3h 58mDelta
jue. 1/15:15 pmPDX - BOI
1 stop16h 05mDelta
Deal found 12/2$167
This Alaska Airlines deal was found by Cheapflights users on 12/2. 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.
mar. 12/305:00 amGEG - PDX
Nonstop1h 25mAlaska Airlines
mar. 1/65:42 pmPDX - GEG
Nonstop1h 04mAlaska Airlines
Deal found 12/2$168
This Alaska Airlines deal was found by Cheapflights users on 12/3. 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. 12/248:21 pmBOI - PDX
Nonstop1h 29mAlaska Airlines
lun. 1/51:51 pmPDX - BOI
1 stop7h 35mAlaska Airlines
Deal found 12/3$172
This Delta deal was found by Cheapflights users on 12/4. 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.
jue. 12/253:30 pmBOI - PDX
1 stop6h 06mDelta
sáb. 1/35:30 amPDX - BOI
1 stop17h 34mDelta
Deal found 12/4$177

Find flight deals from Idaho to Portland

Keep the following information in mind while searching for Idaho to Portland flight deals. Data was last updated diciembre 4, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$127
(Kiwi.com)

One-way from

$56
(Mytrip)

Popular in

March

Cheapest in

August

Average price

$288

Good round-trip deal

$107 or less

Good one-way deal

$90 or less
Provider with most accurate pricing for Boise Air Term. Gowen Fld-Portland flight deals.
Search Deals
Provider most trusted by Cheapflights users for Boise Air Term. Gowen Fld-Portland flights.
Search Deals
From Idaho to Portland
Search Deals
One-way flight from Idaho to Portland
Search Deals
Highest demand for flights based on searches. 2% potential increase in price ($5 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($8 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals
Price to beat on a round-trip flight from Idaho to Portland.
Search Deals
Price to beat on a one-way flight from Idaho to Portland.
Search Deals

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 diciembre 4, 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

jue. 1/15

12:46 pm-1:19 pm

Nonstop1h 33m

Portland

dom. 1/18

10:40 am-12:54 pm

Nonstop1h 14m

$137

SpokanePortland

GEG - PDX

GEGPDX

Spokane

mar. 1/27

7:28 pm-8:47 pm

Nonstop1h 19m

Portland

mar. 2/3

7:34 am-8:40 am

Nonstop1h 06m

$137

SpokanePortland

GEG - PDX

GEGPDX

Spokane

mar. 1/13

7:28 pm-8:47 pm

Nonstop1h 19m

Portland

sáb. 1/17

10:30 am-11:38 am

Nonstop1h 08m

$137

SpokanePortland

GEG - PDX

GEGPDX

Spokane

mar. 1/13

7:28 pm-8:47 pm

Nonstop1h 19m

Portland

mar. 1/20

9:40 pm-10:52 pm

Nonstop1h 12m

$137

SpokanePortland

GEG - PDX

GEGPDX

Spokane

sáb. 1/24

12:32 pm-1:50 pm

Nonstop1h 18m

Portland

mié. 2/4

7:34 am-8:40 am

Nonstop1h 06m

$137

BoisePortland

BOI - PDX

BOIPDX

Boise Air Term. Gowen Fld

sáb. 1/10

7:00 am-4:38 pm

1 stop10h 38m

Portland

dom. 1/11

2:31 pm-11:41 am

1 stop20h 10m

$141

BoisePortland

BOI - PDX

BOIPDX

Boise Air Term. Gowen Fld

jue. 1/8

7:00 am-4:38 pm

1 stop10h 38m

Portland

dom. 1/11

2:31 pm-11:41 am

1 stop20h 10m

$141

SpokanePortland

GEG - PDX

GEGPDX

Spokane

lun. 1/26

7:30 am-12:38 pm

1 stop5h 08m

Portland

sáb. 1/31

9:40 pm-10:52 pm

Nonstop1h 12m

$142

SpokanePortland

GEG - PDX

GEGPDX

Spokane

dom. 1/25

5:45 am-9:29 am

1 stop3h 44m

Portland

mar. 2/3

9:30 pm-12:23 am

1 stop2h 53m

$146

SpokanePortland

GEG - PDX

GEGPDX

Spokane

dom. 1/25

9:05 am-12:38 pm

1 stop3h 33m

Portland

sáb. 1/31

9:10 am-12:44 pm

1 stop3h 34m

$146

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/3

Showing 1-10 of 55 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, March is the cheapest month in which you can book a flight from Idaho to Portland (average of $44). Flying from Idaho to Portland in September is currently the most expensive (average of $137). 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 diciembre 4, 2025.

When flying from Idaho to Portland, the time of day you fly usually plays a role in the price. Save by searching for a flight in the afternoon, which can drop the price by up to 56% versus a flight in the morning.

What is the cheapest day to fly from Idaho to Portland?

Use this chart to determine the cheapest time to fly round-trip from Idaho to Portland. Price data was last updated on November 29, 2025.

Travelers seeking maximum savings on their Idaho to Portland flight should consider departing on Thursday afternoons when fares are most often at their lowest. Sunday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

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 diciembre 4, 2025.

The most flights from USID to PDX are scheduled on a Thursday (10 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (4 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 20 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 and Delta can get you from Idaho to Portland in just under 1h 33m. Your travel time can differ by up to 2h 25m. 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 Allegiant Air, which is currently one of the cheapest options available, starting at $48. Alaska Airlines flights start at $78 while deals on Southwest start at $88 one-way.

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

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

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

    Consider British Airways (95%), Alaska Airlines (91%) or SkyWest Airlines (90%) 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 $971, our data indicates the cheapest price to be $137. The most popular route (Spokane - Portland), is priced around $127.

  • 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, March is the cheapest month in which you can book a flight from Idaho to Portland (average of $44). Flying from Idaho to Portland in September is currently the most expensive (average of $137). 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
Clackamas
Lincoln City
Lake Oswego
Beaverton
McMinnville
Hillsboro
Troutdale
Cannon Beach
Long Beach
Longview
Tigard
The Dalles
Depoe Bay
Stevenson
Wilsonville
Pacific City
Tillamook
Gresham

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Top 4 airlines flying from Idaho to Portland

Discover the top 4 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 diciembre 4, 2025.
AirlineCheapestAverageFlexibilityOn-time
Allegiant AirCheapest$64Average$109FlexibilityNo cancel feeOn-time88%
Hawaiian AirlinesCheapest$121Average$286FlexibilityNo cancel feeOn-time85%
Alaska AirlinesCheapest$137Average$337FlexibilityNo cancel feeOn-time75%
DeltaCheapest$146Average$365FlexibilityNo cancel feeOn-timeN/A

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