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Idaho

$46+ 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 7/4. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — BOI
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
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 June 12, 2025.

Round-trip from

$62
(Booking.com)

One-way from

$46
(Booking.com)

Popular in

December

Cheapest in

April

Average price

$316

Good round-trip deal

$68 or less

Good one-way deal

$48 or less
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. 4% potential increase in price ($12 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($6 potential savings vs. average RT price).
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Average for round-trip flights in June 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 June 12, 2025.

This Kiwi.com deal was found by Cheapflights users on 6/12. 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.
Mon 7/211:38 pmPDX - IDA
Nonstop1h 36mAllegiant Air
Mon 7/285:04 pmIDA - PDX
Nonstop1h 37mAllegiant Air
Deal found 6/12$103
This Alaska Airlines deal was found by Cheapflights users on 6/10. 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 11/82:30 pmPDX - GEG
Nonstop1h 14mAlaska Airlines
Tue 11/1112:33 pmGEG - PDX
Nonstop1h 17mAlaska Airlines
Deal found 6/10$137
This Alaska Airlines deal was found by Cheapflights users on 6/10. 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 8/199:40 pmPDX - BOI
Nonstop1h 14mAlaska Airlines
Sat 8/236:00 amBOI - PDX
Nonstop1h 20mAlaska Airlines
Deal found 6/10$147
This Southwest deal was found by Cheapflights users on 6/11. 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.
Wed 11/127:00 amPDX - BOI
1 stop4h 20mSouthwest
Wed 11/121:25 pmBOI - PDX
2 stops7h 30mSouthwest
Deal found 6/11$162
This Mytrip deal was found by Cheapflights users on 6/10. 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.
Mon 7/211:38 pmPDX - IDA
Nonstop1h 36mMultiple Airlines
Mon 7/286:12 pmIDA - PDX
1 stop16h 06mMultiple Airlines
Deal found 6/10$167
This Delta deal was found by Cheapflights users on 6/10. 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 11/85:45 pmPDX - GEG
1 stop5h 02mDelta
Tue 11/116:10 amGEG - PDX
1 stop4h 14mDelta
Deal found 6/10$169
This United Airlines deal was found by Cheapflights users on 6/11. 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.
Wed 7/99:47 amPDX - BOI
1 stop5h 53mUnited Airlines
Wed 7/167:15 pmBOI - PDX
1 stop6h 20mUnited Airlines
Deal found 6/11$183
This Delta deal was found by Cheapflights users on 6/10. 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 8/197:05 pmPDX - BOI
1 stop3h 54mDelta
Sat 8/235:45 amBOI - PDX
1 stop3h 30mDelta
Deal found 6/10$185
This Hawaiian Airlines deal was found by Cheapflights users on 6/12. 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 11/79:36 pmPDX - BOI
Nonstop1h 23mHawaiian Airlines
Sat 11/82:30 pmBOI - PDX
1 stop3h 11mHawaiian Airlines
Deal found 6/12$187
This Hawaiian Airlines deal was found by Cheapflights users on 6/10. 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 10/310:32 amPDX - GEG
Nonstop1h 12mHawaiian Airlines
Fri 10/37:44 pmGEG - PDX
1 stop4h 15mHawaiian Airlines
Deal found 6/10$201
This FlightHub deal was found by Cheapflights users on 6/11. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/222:35 pmPDX - BOI
1 stop5h 09mSpirit Airlines
Mon 8/259:49 pmBOI - PDX
1 stop16h 41mSpirit Airlines
Deal found 6/11$213
This Mytrip deal was found by Cheapflights users on 6/12. 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.
Thu 7/173:10 pmPDX - GEG
2 stops25h 52mMultiple Airlines
Sun 7/209:33 amGEG - PDX
1 stop23h 45mMultiple Airlines
Deal found 6/12$249

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 June 12, 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

Mon 7/21

1:38 pm-4:14 pm

Nonstop1h 36m

Idaho Falls Fanning Field

Mon 7/28

5:04 pm-5:41 pm

Nonstop1h 37m

$103

PortlandSpokane

PDX - GEG

PDXGEG

Portland

Sat 11/8

2:30 pm-3:44 pm

Nonstop1h 14m

Spokane

Tue 11/11

12:33 pm-1:50 pm

Nonstop1h 17m

$137

PortlandBoise

PDX - BOI

PDXBOI

Portland

Tue 8/19

9:40 pm-11:54 pm

Nonstop1h 14m

Boise Air Term. Gowen Fld

Sat 8/23

6:00 am-6:20 am

Nonstop1h 20m

$147

PortlandBoise

PDX - BOI

PDXBOI

Portland

Wed 11/12

7:00 am-12:20 pm

1 stop4h 20m

Boise Air Term. Gowen Fld

Wed 11/12

1:25 pm-7:55 pm

2 stops7h 30m

$162

PortlandIdaho Falls

PDX - IDA

PDXIDA

Portland

Mon 7/21

1:38 pm-4:14 pm

Nonstop1h 36m

Idaho Falls Fanning Field

Mon 7/28

6:12 pm-9:18 am

1 stop16h 06m

$167

PortlandSpokane

PDX - GEG

PDXGEG

Portland

Sat 11/8

5:45 pm-10:47 pm

1 stop5h 02m

Spokane

Tue 11/11

6:10 am-10:24 am

1 stop4h 14m

$169

PortlandBoise

PDX - BOI

PDXBOI

Portland

Wed 7/9

9:47 am-4:40 pm

1 stop5h 53m

Boise Air Term. Gowen Fld

Wed 7/16

7:15 pm-12:35 am

1 stop6h 20m

$183

PortlandBoise

PDX - BOI

PDXBOI

Portland

Tue 8/19

7:05 pm-11:59 pm

1 stop3h 54m

Boise Air Term. Gowen Fld

Sat 8/23

5:45 am-8:15 am

1 stop3h 30m

$185

PortlandBoise

PDX - BOI

PDXBOI

Portland

Fri 11/7

9:36 pm-11:59 pm

Nonstop1h 23m

Boise Air Term. Gowen Fld

Sat 11/8

2:30 pm-4:41 pm

1 stop3h 11m

$187

PortlandSpokane

PDX - GEG

PDXGEG

Portland

Fri 10/3

10:32 am-11:44 am

Nonstop1h 12m

Spokane

Fri 10/3

7:44 pm-11:59 pm

1 stop4h 15m

$201

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/10

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, 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 $395). 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 June 12, 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 June 12, 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 (12 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 June 12, 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
10,000 reviews

Boarding

8.1

Food

7.1

Crew

8.5

Comfort

7.8

Overall

8.0

Entertainment

7.1

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
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Food

7.1

Crew

8.5

Comfort

7.8

Overall

8.0

Entertainment

7.1

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
4,287 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Food

7.1

Crew

8.5

Comfort

7.8

Overall

8.0

Entertainment

7.1

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
7,950 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Food

7.1

Crew

8.5

Comfort

7.8

Overall

8.0

Entertainment

7.1

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
2,494 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Food

7.1

Crew

8.5

Comfort

7.8

Overall

8.0

Entertainment

7.1

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
8,790 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Food

7.1

Crew

8.5

Comfort

7.8

Overall

8.0

Entertainment

7.1

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 9 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 ($46), Alaska Airlines ($89), and Hawaiian Airlines ($99).

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

    When deciding which route to take from Portland to Idaho consider Portland - Spokane, Portland - Boise Air Term. Gowen Fld or Portland - Jackson Hole as they are the most popular.

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

    Consider SkyWest Airlines (96%), Horizon Air (92%) or Hawaiian Airlines (92%) 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 $238, our data indicates the cheapest price to be $119. The most popular route (Portland - Spokane), is priced around $137.

  • 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 $395). 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 June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
Allegiant AirCheapest$68Average$108FlexibilityNo cancel feeOn-time88%
Spirit AirlinesCheapest$87Average$144FlexibilityNo cancel feeOn-time65%
Hawaiian AirlinesCheapest$150Average$278FlexibilityNo cancel feeOn-time85%
Alaska AirlinesCheapest$164Average$408FlexibilityNo cancel feeOn-time75%
DeltaCheapest$166Average$476FlexibilityNo cancel feeOn-timeN/A

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