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Idaho

$74+ 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 3/4. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — BOI
feb. 25 — mar. 41
mié. 2/25
mié. 3/4
1 adult, Economy
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Cheap 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 enero 26, 2026.

This Southwest deal was found by Cheapflights users on 1/25. 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.
sáb. 2/286:00 am
PDX
-
BOI
1 stop6h 10m
Southwest
mar. 3/107:10 pm
BOI
-
PDX
1 stop5h 25m
Southwest
Deal found 1/25$151
This Alaska Airlines deal was found by Cheapflights users on 1/26. 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.
mié. 5/137:00 am
PDX
-
GEG
Nonstop1h 13m
Alaska Airlines
mar. 5/195:00 am
GEG
-
PDX
Nonstop1h 15m
Alaska Airlines
Deal found 1/26$157
This Delta deal was found by Cheapflights users on 1/24. 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.
vie. 2/207:15 am
PDX
-
BOI
1 stop4h 56m
Delta
mar. 2/245:50 am
BOI
-
PDX
1 stop3h 41m
Delta
Deal found 1/24$157
This Southwest deal was found by Cheapflights users on 1/24. 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.
jue. 2/195:50 am
PDX
-
BOI
1 stop6h 25m
Southwest
mar. 2/244:00 pm
BOI
-
PDX
1 stop5h 30m
Southwest
Deal found 1/24$159
This Delta deal was found by Cheapflights users on 1/26. 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.
mié. 5/137:40 pm
PDX
-
GEG
1 stop4h 04m
Delta
mar. 5/195:20 am
GEG
-
PDX
1 stop5h 16m
Delta
Deal found 1/26$167
This Delta deal was found by Cheapflights users on 1/26. 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.
vie. 2/207:15 am
PDX
-
BOI
1 stop4h 56m
Delta
dom. 2/225:35 am
BOI
-
PDX
1 stop4h 40m
Delta
Deal found 1/26$167
This Southwest deal was found by Cheapflights users on 1/25. 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.
jue. 3/511:50 am
PDX
-
BOI
2 stops9h 40m
Southwest
sáb. 3/2111:55 am
BOI
-
PDX
1 stop11h 00m
Southwest
Deal found 1/25$170
This Southwest deal was found by Cheapflights users on 1/24. 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.
jue. 2/263:10 pm
PDX
-
BOI
2 stops8h 50m
Southwest
lun. 3/23:55 pm
BOI
-
PDX
1 stop7h 35m
Southwest
Deal found 1/24$172
This Delta deal was found by Cheapflights users on 1/26. 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.
mar. 2/245:30 am
PDX
-
GEG
1 stop3h 10m
Delta
vie. 2/276:05 am
GEG
-
PDX
1 stop4h 42m
Delta
Deal found 1/26$177
This Alaska Airlines deal was found by Cheapflights users on 1/25. 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. 3/49:40 pm
PDX
-
BOI
Nonstop1h 19m
Alaska Airlines
lun. 3/96:00 pm
BOI
-
PDX
1 stop5h 41m
Alaska Airlines
Deal found 1/25$177
This Southwest deal was found by Cheapflights users on 1/24. 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.
jue. 2/263:10 pm
PDX
-
BOI
2 stops8h 50m
Southwest
dom. 3/112:05 pm
BOI
-
PDX
1 stop8h 25m
Southwest
Deal found 1/24$178
This Alaska Airlines deal was found by Cheapflights users on 1/26. 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.
vie. 3/610:30 am
PDX
-
GEG
Nonstop1h 16m
Alaska Airlines
dom. 3/812:40 pm
GEG
-
PDX
Nonstop1h 19m
Alaska Airlines
Deal found 1/26$187

Find flight deals from Portland to Idaho

Keep the following information in mind while searching for Portland to Idaho flight deals. Data was last updated enero 26, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$151
(Southwest)

One-way from

$74
(Delta)

Popular in

November

Cheapest in

April

Average price

$298

Good round-trip deal

$131 or less

Good one-way deal

$60 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. 7% potential increase in price ($22 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 January 2026
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 enero 26, 2026.
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

PortlandBoise

PDX - BOI

PDXBOI

Portland

sáb. 2/28

6:25 am-11:20 am

1 stop3h 55m

Boise Air Term. Gowen Fld

mar. 3/10

5:40 am-2:30 pm

2 stops9h 50m

$156

PortlandBoise

PDX - BOI

PDXBOI

Portland

mar. 2/24

9:55 am-2:55 pm

1 stop4h 00m

Boise Air Term. Gowen Fld

mar. 3/3

3:35 pm-9:20 pm

2 stops6h 45m

$156

PortlandSpokane

PDX - GEG

PDXGEG

Portland

mié. 5/13

7:00 am-8:13 am

Nonstop1h 13m

Spokane

mar. 5/19

5:00 am-6:15 am

Nonstop1h 15m

$157

PortlandBoise

PDX - BOI

PDXBOI

Portland

mié. 2/18

1:27 pm-8:15 pm

1 stop5h 48m

Boise Air Term. Gowen Fld

dom. 2/22

5:50 am-8:31 am

1 stop3h 41m

$157

PortlandBoise

PDX - BOI

PDXBOI

Portland

sáb. 2/28

7:20 am-9:45 am

Nonstop1h 25m

Boise Air Term. Gowen Fld

dom. 3/1

5:40 am-6:11 am

Nonstop1h 31m

$157

PortlandBoise

PDX - BOI

PDXBOI

Portland

mar. 2/17

3:59 pm-9:56 pm

1 stop4h 57m

Boise Air Term. Gowen Fld

lun. 2/23

5:15 pm-8:55 pm

1 stop4h 40m

$157

PortlandBoise

PDX - BOI

PDXBOI

Portland

jue. 3/5

3:59 pm-8:15 pm

1 stop3h 16m

Boise Air Term. Gowen Fld

mié. 3/11

7:30 am-10:01 am

1 stop3h 31m

$157

PortlandBoise

PDX - BOI

PDXBOI

Portland

vie. 2/27

9:40 pm-11:59 pm

Nonstop1h 19m

Boise Air Term. Gowen Fld

lun. 3/2

8:20 pm-8:47 pm

Nonstop1h 27m

$157

PortlandBoise

PDX - BOI

PDXBOI

Portland

sáb. 2/28

7:15 am-1:11 pm

1 stop4h 56m

Boise Air Term. Gowen Fld

dom. 3/1

5:50 am-8:31 am

1 stop3h 41m

$157

PortlandBoise

PDX - BOI

PDXBOI

Portland

mar. 2/24

1:27 pm-6:22 pm

1 stop3h 55m

Boise Air Term. Gowen Fld

lun. 3/2

5:15 pm-8:55 pm

1 stop4h 40m

$157

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/25

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 $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 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 enero 26, 2026.

Unlike in the evening, when flights are generally more expensive, you can save up to 38% on flights from Portland to Idaho by exploring options for tickets at noon.

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 January 24, 2026.

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 enero 26, 2026.

The most flights from PDX to USID are scheduled on a Monday (10 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (5 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 enero 26, 2026.
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
11,793 reviews

Boarding

8.1

Comfort

7.8

Entertainment

7.0

Crew

8.5

Overall

8.0

Food

7.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

STS - LAX

Enjoyed staff assistance from ticking thru tsa , boarding and in the plane Couldn’t pick a seat except upgrading
Alaska Airlines
8.0
Very good
11,793 reviews
Alaska Airlines
8.0
Very good
11,793 reviews

Boarding

8.1

Comfort

7.8

Entertainment

7.0

Crew

8.5

Overall

8.0

Food

7.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

STS - LAX

Enjoyed staff assistance from ticking thru tsa , boarding and in the plane Couldn’t pick a seat except upgrading
Delta
7.9
Good
8,118 reviews
Alaska Airlines
8.0
Very good
11,793 reviews

Boarding

8.1

Comfort

7.8

Entertainment

7.0

Crew

8.5

Overall

8.0

Food

7.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

STS - LAX

Enjoyed staff assistance from ticking thru tsa , boarding and in the plane Couldn’t pick a seat except upgrading
Hawaiian Airlines
7.8
Good
2,829 reviews
Alaska Airlines
8.0
Very good
11,793 reviews

Boarding

8.1

Comfort

7.8

Entertainment

7.0

Crew

8.5

Overall

8.0

Food

7.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

STS - LAX

Enjoyed staff assistance from ticking thru tsa , boarding and in the plane Couldn’t pick a seat except upgrading
Allegiant Air
7.2
Good
706 reviews
Alaska Airlines
8.0
Very good
11,793 reviews

Boarding

8.1

Comfort

7.8

Entertainment

7.0

Crew

8.5

Overall

8.0

Food

7.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

STS - LAX

Enjoyed staff assistance from ticking thru tsa , boarding and in the plane Couldn’t pick a seat except upgrading

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 5 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 Southwest, Alaska Airlines, and Delta fly from Portland to Idaho in about 1h 13m. The time it takes to get you to your destination can typically vary by up to 4h 35m. 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 Allegiant Air ($48), Delta ($73), and Southwest ($78).

  • 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 SkyWest Airlines (98%), Horizon Air (87%) or British Airways (86%) 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 $214, our data indicates the cheapest price to be $88. The most popular route (Portland - Boise Air Term. Gowen Fld), is priced around $147.

  • 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 $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

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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 enero 26, 2026.
AirlineCheapestAverageFlexibilityOn-time
Allegiant AirCheapest$44Average$97FlexibilityNo cancel feeOn-time88%
DeltaCheapest$136Average$370FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$137Average$396FlexibilityNo cancel feeOn-time75%
Hawaiian AirlinesCheapest$138Average$327FlexibilityNo cancel feeOn-time85%

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