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Idaho

$68+ 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 3/11. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — BOI
Jan 26 — Feb 21
Sun 1/26
Sun 2/2
1 adult, Economy
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Cheap flight deals from Portland to Idaho

Discover tips and strategies to find the most affordable flight options for your journey from Portland (PDX) to Idaho (USID). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated January 21, 2025.

Round-trip from

$80
(Mytrip)

One-way from

$70
(FlightHub)

Good round-trip deal

$97 or less

Good one-way deal

$82 or less
From Portland to Idaho
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One-way flight from Portland to Idaho
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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 January 21, 2025.

This Mytrip deal was found by Cheapflights users on 1/21. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/2810:58 amPDX - IDA
Nonstop1h 38mAllegiant Air
Mon 3/32:26 pmIDA - PDX
Nonstop1h 40mAllegiant Air
Deal found 1/21$80
This Alaska Airlines deal was found by Cheapflights users on 1/20. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/189:59 pmPDX - GEG
Nonstop1h 08mAlaska Airlines
Wed 3/199:41 pmGEG - PDX
Nonstop1h 09mAlaska Airlines
Deal found 1/20$167
This Southwest deal was found by Cheapflights users on 1/20. 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.
Thu 2/201:40 pmPDX - BOI
1 stop9h 00mSouthwest
Tue 2/255:05 pmBOI - PDX
1 stop4h 20mSouthwest
Deal found 1/20$167
This eDestinos deal was found by Cheapflights users on 1/19. 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 eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/142:59 pmPDX - IDA
Nonstop1h 38mMultiple Airlines
Mon 3/173:28 pmIDA - PDX
2 stops34h 09mMultiple Airlines
Deal found 1/19$172
This Delta deal was found by Cheapflights users on 1/21. 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 2/195:15 amPDX - GEG
1 stop3h 20mDelta
Wed 2/197:24 pmGEG - PDX
1 stop4h 34mDelta
Deal found 1/21$177
This Travelocity deal was found by Cheapflights users on 1/20. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/2710:16 amPDX - BOI
1 stop7h 30mMultiple Airlines
Sun 3/27:30 amBOI - PDX
Nonstop1h 30mMultiple Airlines
Deal found 1/20$181
This Delta deal was found by Cheapflights users on 1/19. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/189:15 amPDX - BOI
1 stop6h 01mDelta
Sat 2/226:00 amBOI - PDX
1 stop4h 16mDelta
Deal found 1/19$187
This CheapOair deal was found by Cheapflights users on 1/21. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/198:28 pmPDX - BOI
1 stop21h 18mSpirit Airlines
Sun 2/237:41 pmBOI - PDX
1 stop14h 40mSpirit Airlines
Deal found 1/21$193
This United Airlines deal was found by Cheapflights users on 1/20. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/1910:21 amPDX - BOI
1 stop5h 00mUnited Airlines
Sun 4/207:00 pmBOI - PDX
1 stop6h 30mUnited Airlines
Deal found 1/20$197
This Alaska Airlines deal was found by Cheapflights users on 1/20. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 2/97:20 amPDX - BOI
Nonstop1h 08mAlaska Airlines
Wed 2/1212:59 pmBOI - PDX
Nonstop1h 22mAlaska Airlines
Deal found 1/20$198
This Delta deal was found by Cheapflights users on 1/21. 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 2/195:20 pmPDX - IDA
1 stop4h 24mDelta
Wed 2/266:00 amIDA - PDX
1 stop4h 16mDelta
Deal found 1/21$231
This Delta deal was found by Cheapflights users on 1/21. 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.
Fri 3/77:10 amPDX - JAC
2 stops8h 28mDelta
Wed 3/121:25 pmJAC - PDX
2 stops8h 26mDelta
Deal found 1/21$322

Find flights from Portland to Idaho within your budget

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 January 21, 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

PortlandIdaho Falls

PDX - IDA

PDXIDA

Portland

Fri 2/28

10:58 am-1:36 pm

Nonstop1h 38m

Idaho Falls Fanning Field

Mon 3/3

2:26 pm-3:06 pm

Nonstop1h 40m

$80

PortlandSpokane

PDX - GEG

PDXGEG

Portland

Tue 3/18

9:59 pm-11:07 pm

Nonstop1h 08m

Spokane

Wed 3/19

9:41 pm-10:50 pm

Nonstop1h 09m

$167

PortlandIdaho Falls

PDX - IDA

PDXIDA

Portland

Fri 3/14

2:59 pm-5:37 pm

Nonstop1h 38m

Idaho Falls Fanning Field

Mon 3/17

3:28 pm-12:37 am

2 stops34h 09m

$172

PortlandSpokane

PDX - GEG

PDXGEG

Portland

Wed 2/19

5:15 am-8:35 am

1 stop3h 20m

Spokane

Wed 2/19

7:24 pm-11:58 pm

1 stop4h 34m

$177

PortlandBoise

PDX - BOI

PDXBOI

Portland

Mon 3/3

7:31 am-9:41 am

Nonstop1h 10m

Boise Air Term. Gowen Fld

Mon 3/3

5:31 pm-5:55 pm

Nonstop1h 24m

$177

PortlandBoise

PDX - BOI

PDXBOI

Portland

Tue 2/18

10:16 am-6:46 pm

1 stop7h 30m

Boise Air Term. Gowen Fld

Thu 2/27

12:59 pm-1:23 pm

Nonstop1h 24m

$187

PortlandBoise

PDX - BOI

PDXBOI

Portland

Wed 2/19

8:28 pm-6:46 pm

1 stop21h 18m

Boise Air Term. Gowen Fld

Sun 2/23

7:41 pm-9:21 am

1 stop14h 40m

$193

PortlandBoise

PDX - BOI

PDXBOI

Portland

Mon 3/3

7:10 am-1:45 pm

1 stop5h 35m

Boise Air Term. Gowen Fld

Mon 3/3

7:30 pm-11:58 pm

1 stop5h 28m

$197

PortlandIdaho Falls

PDX - IDA

PDXIDA

Portland

Wed 2/19

5:20 pm-10:44 pm

1 stop4h 24m

Idaho Falls Fanning Field

Wed 2/26

6:00 am-9:16 am

1 stop4h 16m

$231

PortlandBoise

PDX - BOI

PDXBOI

Portland

Tue 2/18

6:10 am-1:10 pm

1 stop6h 00m

Boise Air Term. Gowen Fld

Thu 2/27

2:05 pm-10:55 pm

2 stops9h 50m

$271

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/21

Showing 1-10 of 39 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.

Travel insights for flights from Portland to Idaho

Get recent, data-driven insights about flights from Portland to Idaho including ideal travel times, pricing trends, and more.

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 $436). 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 January 21, 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 January 21, 2025.

The most flights from PDX to USID are scheduled on a Monday (14 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (2 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 January 21, 2025.
See what other customers who have flown with United Airlines, Delta and Spirit Airlines 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.
Southwest
8.1
Very good
4,662 reviews

Food

7.2

Boarding

8.2

Overall

8.1

Crew

8.7

Entertainment

7.7

Comfort

8.1

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Southwest
8.1
Very good
4,662 reviews
Southwest
8.1
Very good
4,662 reviews

Food

7.2

Boarding

8.2

Overall

8.1

Crew

8.7

Entertainment

7.7

Comfort

8.1

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Alaska Airlines
8.0
Very good
9,706 reviews
Southwest
8.1
Very good
4,662 reviews

Food

7.2

Boarding

8.2

Overall

8.1

Crew

8.7

Entertainment

7.7

Comfort

8.1

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Delta
8.0
Very good
8,521 reviews
Southwest
8.1
Very good
4,662 reviews

Food

7.2

Boarding

8.2

Overall

8.1

Crew

8.7

Entertainment

7.7

Comfort

8.1

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

United Airlines
7.4
Good
8,985 reviews
Southwest
8.1
Very good
4,662 reviews

Food

7.2

Boarding

8.2

Overall

8.1

Crew

8.7

Entertainment

7.7

Comfort

8.1

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Allegiant Air
7.4
Good
801 reviews
Southwest
8.1
Very good
4,662 reviews

Food

7.2

Boarding

8.2

Overall

8.1

Crew

8.7

Entertainment

7.7

Comfort

8.1

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

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 15 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 Spirit Airlines ($70), Alaska Airlines ($79), and Delta ($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 (91%), Alaska Airlines (86%) or Singapore Airlines (85%) 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 $233, our data indicates the cheapest price to be $78. The most popular route (Portland - Boise Air Term. Gowen Fld), is priced around $123.

  • 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 $436). 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 January 21, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$84Average$114FlexibilityNo cancel feeOn-time65%
Allegiant AirCheapest$87Average$121FlexibilityNo cancel feeOn-time88%
Alaska AirlinesCheapest$176Average$456FlexibilityNo cancel feeOn-time75%
DeltaCheapest$186Average$466FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$352Average$477FlexibilityNo cancel feeOn-time69%
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