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Idaho

$65+ 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 11/15. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — BOI
Nov 27 — Dec 41
Thu 11/27
Thu 12/4
1 adult, Economy
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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 October 28, 2025.

This Booking.com deal was found by Cheapflights users on 10/26. 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 12/1212:01 pmPDX - IDA
Nonstop1h 35mAllegiant Air
Mon 12/153:26 pmIDA - PDX
Nonstop1h 45mAllegiant Air
Deal found 10/26$111
This Alaska Airlines deal was found by Cheapflights users on 10/28. 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.
Sat 12/135:35 pmPDX - GEG
Nonstop1h 10mAlaska Airlines
Wed 12/1712:34 pmGEG - PDX
Nonstop1h 23mAlaska Airlines
Deal found 10/28$137
This Kiwi.com deal was found by Cheapflights users on 10/27. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/211:54 pmPDX - IDA
Nonstop1h 38mAllegiant Air
Mon 11/245:22 pmIDA - PDX
Nonstop1h 45mAllegiant Air
Deal found 10/27$144
This Kiwi.com deal was found by Cheapflights users on 10/26. 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.
Sat 11/227:00 amPDX - GEG
Nonstop1h 13mHawaiian Airlines
Sun 11/235:00 amGEG - PDX
Nonstop1h 26mHawaiian Airlines
Deal found 10/26$145
This Alaska Airlines deal was found by Cheapflights users on 10/26. 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 11/215:20 amPDX - GEG
1 stop8h 47mAlaska Airlines
Sat 11/2210:29 amGEG - PDX
1 stop5h 27mAlaska Airlines
Deal found 10/26$146
This Delta deal was found by Cheapflights users on 10/26. 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.
Mon 12/17:59 pmPDX - GEG
1 stop4h 11mDelta
Mon 12/85:05 amGEG - PDX
1 stop5h 50mDelta
Deal found 10/26$147
This Delta deal was found by Cheapflights users on 10/26. 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 11/225:30 amPDX - GEG
1 stop13h 28mDelta
Sun 11/236:00 amGEG - PDX
1 stop9h 33mDelta
Deal found 10/26$148
This Alaska Airlines deal was found by Cheapflights users on 10/27. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/175:30 pmPDX - GEG
1 stop3h 44mAlaska Airlines
Sat 11/225:00 amGEG - PDX
Nonstop1h 26mAlaska Airlines
Deal found 10/27$152
This Alaska Airlines deal was found by Cheapflights users on 10/27. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/217:00 amPDX - GEG
Nonstop1h 13mAlaska Airlines
Sun 11/235:00 amGEG - PDX
Nonstop1h 26mAlaska Airlines
Deal found 10/27$157
This Alaska Airlines deal was found by Cheapflights users on 10/26. 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 11/269:49 pmPDX - GEG
Nonstop1h 12mAlaska Airlines
Wed 12/312:34 pmGEG - PDX
Nonstop1h 23mAlaska Airlines
Deal found 10/26$168
This Cheapflightsfares deal was found by Cheapflights users on 10/26. 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.
Fri 12/125:49 pmPDX - GEG
1 stop3h 39mAlaska Airlines
Sun 12/148:23 amGEG - PDX
Nonstop1h 24mAlaska Airlines
Deal found 10/26$171
This Delta deal was found by Cheapflights users on 10/27. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/199:10 amPDX - BOI
1 stop5h 52mDelta
Mon 12/226:08 pmBOI - PDX
1 stop6h 47mDelta
Deal found 10/27$178

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 October 28, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$111
(Booking.com)

One-way from

$65
(Trip.com)

Popular in

December

Cheapest in

September

Average price

$297

Good round-trip deal

$239 or less

Good one-way deal

$215 or less
Provider with most accurate pricing for Portland-Boise Air Term. Gowen Fld flight deals.
Search Deals
Provider most trusted by Cheapflights users for Portland-Boise Air Term. Gowen Fld flights.
Search Deals
From Portland to Idaho
Search Deals
One-way flight from Portland to Idaho
Search Deals
Highest demand for flights based on searches. 4% potential increase in price ($13 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($5 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 2025
Search Deals
Price to beat on a round-trip flight from Portland to Idaho.
Search Deals
Price to beat on a one-way flight from Portland to Idaho.
Search Deals

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 October 28, 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 12/13

5:35 pm-6:45 pm

Nonstop1h 10m

Spokane

Wed 12/17

12:34 pm-1:57 pm

Nonstop1h 23m

$137

PortlandSpokane

PDX - GEG

PDXGEG

Portland

Fri 11/21

5:20 am-2:07 pm

1 stop8h 47m

Spokane

Sat 11/22

12:15 pm-1:30 pm

Nonstop1h 15m

$142

PortlandSpokane

PDX - GEG

PDXGEG

Portland

Fri 12/5

5:49 pm-9:28 pm

1 stop3h 39m

Spokane

Sat 12/6

8:23 am-9:47 am

Nonstop1h 24m

$142

PortlandIdaho Falls

PDX - IDA

PDXIDA

Portland

Fri 11/21

1:54 pm-4:32 pm

Nonstop1h 38m

Idaho Falls Fanning Field

Mon 11/24

5:22 pm-6:07 pm

Nonstop1h 45m

$144

PortlandSpokane

PDX - GEG

PDXGEG

Portland

Sat 12/13

9:10 am-2:55 pm

1 stop5h 45m

Spokane

Wed 12/17

5:05 am-8:28 am

1 stop3h 23m

$147

PortlandSpokane

PDX - GEG

PDXGEG

Portland

Fri 12/12

5:30 am-8:33 am

1 stop3h 03m

Spokane

Mon 12/15

5:05 am-8:28 am

1 stop3h 23m

$147

PortlandSpokane

PDX - GEG

PDXGEG

Portland

Mon 12/1

7:59 pm-12:10 am

1 stop4h 11m

Spokane

Sat 12/6

5:05 am-8:29 am

1 stop3h 24m

$147

PortlandSpokane

PDX - GEG

PDXGEG

Portland

Mon 12/1

7:59 pm-12:10 am

1 stop4h 11m

Spokane

Sun 12/7

7:35 pm-12:15 am

1 stop4h 40m

$147

PortlandSpokane

PDX - GEG

PDXGEG

Portland

Sat 11/22

5:30 am-6:58 pm

1 stop13h 28m

Spokane

Sun 11/23

6:00 am-3:33 pm

1 stop9h 33m

$148

PortlandBoise

PDX - BOI

PDXBOI

Portland

Sat 12/20

5:25 pm-12:04 am

1 stop5h 39m

Boise Air Term. Gowen Fld

Thu 1/1

3:30 pm-8:36 pm

1 stop6h 06m

$178

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/28

Showing 1-10 of 60 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, July is the cheapest month in which you can book a flight from Portland to Idaho (average of $44). Flying from Portland to Idaho in October is currently the most expensive (average of $149). 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 October 28, 2025.

Unlike at noon, when flights are generally more expensive, you can save up to 35% on flights from Portland to Idaho by exploring options for tickets in the morning.

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

Use this chart to determine the cheapest time to fly round-trip from Portland to Idaho. Price data was last updated on October 26, 2025.

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

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 October 28, 2025.

The most flights from PDX to USID are scheduled on a Monday (11 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (6 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 October 28, 2025.
Get a feel of what it's like to fly with Alaska Airlines, Delta, and Hawaiian Airlines 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
11,201 reviews

Boarding

8.1

Comfort

7.8

Entertainment

7.0

Overall

8.0

Crew

8.5

Food

7.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

BOS - HNL

The flight was awesome but a little long. I would prefer a flight with a layover. The amount of space available was minimal and a little uncomfortable for that long of a flight.
Alaska Airlines
8.0
Very good
11,201 reviews
Alaska Airlines
8.0
Very good
11,201 reviews

Boarding

8.1

Comfort

7.8

Entertainment

7.0

Overall

8.0

Crew

8.5

Food

7.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

BOS - HNL

The flight was awesome but a little long. I would prefer a flight with a layover. The amount of space available was minimal and a little uncomfortable for that long of a flight.
Delta
7.9
Good
7,994 reviews
Alaska Airlines
8.0
Very good
11,201 reviews

Boarding

8.1

Comfort

7.8

Entertainment

7.0

Overall

8.0

Crew

8.5

Food

7.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

BOS - HNL

The flight was awesome but a little long. I would prefer a flight with a layover. The amount of space available was minimal and a little uncomfortable for that long of a flight.
Hawaiian Airlines
7.8
Good
2,794 reviews
Alaska Airlines
8.0
Very good
11,201 reviews

Boarding

8.1

Comfort

7.8

Entertainment

7.0

Overall

8.0

Crew

8.5

Food

7.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

BOS - HNL

The flight was awesome but a little long. I would prefer a flight with a layover. The amount of space available was minimal and a little uncomfortable for that long of a flight.
Allegiant Air
7.2
Good
695 reviews
Alaska Airlines
8.0
Very good
11,201 reviews

Boarding

8.1

Comfort

7.8

Entertainment

7.0

Overall

8.0

Crew

8.5

Food

7.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

BOS - HNL

The flight was awesome but a little long. I would prefer a flight with a layover. The amount of space available was minimal and a little uncomfortable for that long of a flight.

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 9 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 Portland to Idaho?

    Airlines like Alaska Airlines, Allegiant Air, and Delta fly from Portland to Idaho in about 1h 10m. The time it takes to get you to your destination can typically vary by up to 4h 29m. The distance between Portland and Idaho is about 278 mi. This flight may include one or multiple stops.

  • 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 Frontier ($65), Delta ($74), and Southwest ($76).

  • 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 British Airways (95%), Horizon Air (93%) or Hawaiian Airlines (93%) 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 $307, our data indicates the cheapest price to be $129. The most popular route (Portland - Boise Air Term. Gowen Fld), is priced around $126.

  • 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, July is the cheapest month in which you can book a flight from Portland to Idaho (average of $44). Flying from Portland to Idaho in October is currently the most expensive (average of $149). 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 4 airlines flying from Portland to Idaho

Discover the top 4 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 October 28, 2025.
AirlineCheapestAverageFlexibilityOn-time
Allegiant AirCheapest$56Average$105FlexibilityNo cancel feeOn-time88%
Alaska AirlinesCheapest$139Average$396FlexibilityNo cancel feeOn-time75%
Hawaiian AirlinesCheapest$150Average$331FlexibilityNo cancel feeOn-time85%
DeltaCheapest$166Average$412FlexibilityNo cancel feeOn-timeN/A

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