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Idaho

$73+ 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
May 5 — May 121
Mon 5/5
Mon 5/12
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 30, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$102
(Kiwi.com)

One-way from

$73
(Kiwi.com)

Popular in

December

Cheapest in

April

Average price

$218

Good round-trip deal

$86 or less

Good one-way deal

$49 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 ($5 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 30, 2025.

This Kiwi.com deal was found by Cheapflights users on 4/29. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/301:21 pmPDX - IDA
Nonstop1h 39mAllegiant Air
Mon 6/24:50 pmIDA - PDX
Nonstop1h 39mAllegiant Air
Deal found 4/29$102
This Delta deal was found by Cheapflights users on 4/29. 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.
Wed 6/41:21 pmPDX - GEG
1 stop5h 24mDelta
Wed 6/117:30 pmGEG - PDX
1 stop4h 59mDelta
Deal found 4/29$157
This Delta deal was found by Cheapflights users on 4/28. 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 5/273:30 pmPDX - BOI
1 stop4h 36mDelta
Wed 6/44:59 pmBOI - PDX
1 stop3h 21mDelta
Deal found 4/28$157
This Southwest deal was found by Cheapflights users on 4/29. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/146:40 amPDX - BOI
1 stop8h 20mSouthwest
Tue 6/176:15 pmBOI - PDX
1 stop4h 45mSouthwest
Deal found 4/29$162
This Alaska Airlines deal was found by Cheapflights users on 4/29. 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.
Fri 5/237:01 amPDX - GEG
Nonstop1h 02mAlaska Airlines
Sun 5/257:33 pmGEG - PDX
Nonstop1h 07mAlaska Airlines
Deal found 4/29$177
This Hawaiian Airlines deal was found by Cheapflights users on 4/27. 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 Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/299:49 pmPDX - BOI
Nonstop1h 10mHawaiian Airlines
Wed 6/48:34 pmBOI - PDX
Nonstop1h 16mHawaiian Airlines
Deal found 4/27$187
This Orbitz deal was found by Cheapflights users on 4/28. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/206:20 amPDX - BOI
1 stop6h 17mMultiple Airlines
Mon 5/265:30 amBOI - PDX
Nonstop1h 20mMultiple Airlines
Deal found 4/28$194
This CheapOair deal was found by Cheapflights users on 4/29. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/186:35 amPDX - BOI
1 stop6h 02mFrontier
Thu 5/2912:36 pmBOI - PDX
1 stop12h 41mFrontier
Deal found 4/29$197
This Alaska Airlines deal was found by Cheapflights users on 4/28. 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 5/274:00 pmPDX - BOI
1 stop5h 42mAlaska Airlines
Tue 6/34:01 pmBOI - PDX
Nonstop1h 19mAlaska Airlines
Deal found 4/28$207
This Expedia deal was found by Cheapflights users on 4/29. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/2710:30 amPDX - GEG
Nonstop1h 02mMultiple Airlines
Thu 5/2911:49 amGEG - PDX
1 stop12h 28mMultiple Airlines
Deal found 4/29$210
This Hawaiian Airlines deal was found by Cheapflights users on 4/28. 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.
Mon 5/267:01 amPDX - GEG
Nonstop1h 02mHawaiian Airlines
Mon 6/27:33 pmGEG - PDX
Nonstop1h 07mHawaiian Airlines
Deal found 4/28$217
This Alaska Airlines deal was found by Cheapflights users on 4/28. 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.
Wed 5/282:30 pmPDX - IDA
1 stop7h 04mAlaska Airlines
Wed 6/46:00 amIDA - PDX
1 stop3h 52mAlaska Airlines
Deal found 4/28$256

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 30, 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

Fri 5/30

1:21 pm-4:00 pm

Nonstop1h 39m

Idaho Falls Fanning Field

Mon 6/2

4:50 pm-5:29 pm

Nonstop1h 39m

$102

PortlandSpokane

PDX - GEG

PDXGEG

Portland

Wed 6/4

1:21 pm-6:45 pm

1 stop5h 24m

Spokane

Wed 6/11

7:30 pm-12:29 am

1 stop4h 59m

$157

PortlandBoise

PDX - BOI

PDXBOI

Portland

Tue 5/27

5:35 am-10:06 am

1 stop3h 31m

Boise Air Term. Gowen Fld

Sat 5/31

4:59 pm-8:27 pm

1 stop4h 28m

$157

PortlandBoise

PDX - BOI

PDXBOI

Portland

Sat 6/14

6:40 am-4:00 pm

1 stop8h 20m

Boise Air Term. Gowen Fld

Tue 6/17

6:15 pm-10:00 pm

1 stop4h 45m

$162

PortlandSpokane

PDX - GEG

PDXGEG

Portland

Fri 5/23

7:01 am-8:03 am

Nonstop1h 02m

Spokane

Sun 5/25

7:33 pm-8:40 pm

Nonstop1h 07m

$177

PortlandBoise

PDX - BOI

PDXBOI

Portland

Thu 5/29

9:49 pm-11:59 pm

Nonstop1h 10m

Boise Air Term. Gowen Fld

Wed 6/4

8:34 pm-8:50 pm

Nonstop1h 16m

$187

PortlandBoise

PDX - BOI

PDXBOI

Portland

Tue 5/20

6:20 am-1:37 pm

1 stop6h 17m

Boise Air Term. Gowen Fld

Mon 5/26

5:30 am-5:50 am

Nonstop1h 20m

$194

PortlandBoise

PDX - BOI

PDXBOI

Portland

Sun 5/18

6:35 am-1:37 pm

1 stop6h 02m

Boise Air Term. Gowen Fld

Thu 5/29

12:36 pm-12:17 am

1 stop12h 41m

$197

PortlandBoise

PDX - BOI

PDXBOI

Portland

Tue 5/27

4:00 pm-10:42 pm

1 stop5h 42m

Boise Air Term. Gowen Fld

Tue 6/3

4:01 pm-4:20 pm

Nonstop1h 19m

$207

PortlandSpokane

PDX - GEG

PDXGEG

Portland

Tue 5/27

10:30 am-11:32 am

Nonstop1h 02m

Spokane

Thu 5/29

11:49 am-12:17 am

1 stop12h 28m

$210

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/28

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 $406). 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 30, 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 April 30, 2025.

The most flights from PDX to USID are scheduled on a Monday (14 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (14 on average).

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 30, 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
9,968 reviews

Comfort

7.9

Food

7.1

Entertainment

7.1

Crew

8.5

Boarding

8.2

Overall

8.0

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Alaska Airlines
8.0
Very good
9,968 reviews
Alaska Airlines
8.0
Very good
9,968 reviews

Comfort

7.9

Food

7.1

Entertainment

7.1

Crew

8.5

Boarding

8.2

Overall

8.0

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Southwest
8.0
Very good
4,295 reviews
Alaska Airlines
8.0
Very good
9,968 reviews

Comfort

7.9

Food

7.1

Entertainment

7.1

Crew

8.5

Boarding

8.2

Overall

8.0

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Delta
8.0
Very good
7,936 reviews
Alaska Airlines
8.0
Very good
9,968 reviews

Comfort

7.9

Food

7.1

Entertainment

7.1

Crew

8.5

Boarding

8.2

Overall

8.0

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Hawaiian Airlines
7.9
Good
2,402 reviews
Alaska Airlines
8.0
Very good
9,968 reviews

Comfort

7.9

Food

7.1

Entertainment

7.1

Crew

8.5

Boarding

8.2

Overall

8.0

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
United Airlines
7.4
Good
8,696 reviews
Alaska Airlines
8.0
Very good
9,968 reviews

Comfort

7.9

Food

7.1

Entertainment

7.1

Crew

8.5

Boarding

8.2

Overall

8.0

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

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 ($73), Southwest ($79), and Frontier ($88).

  • 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 $275, our data indicates the cheapest price to be $68. The most popular route (Portland - Boise Air Term. Gowen Fld), is priced around $157.

  • 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 $406). 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

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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 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$84Average$142FlexibilityNo cancel feeOn-time65%
Allegiant AirCheapest$85Average$117FlexibilityNo cancel feeOn-time88%
Hawaiian AirlinesCheapest$147Average$278FlexibilityNo cancel feeOn-time85%
DeltaCheapest$166Average$467FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$168Average$421FlexibilityNo cancel feeOn-time75%

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