$162 Cheap Flights from Portland (PWM) to Boise (BOI)

View $162 flight on Sat, Sep 13, 2025Opens in a new window

Popular airlines from Portland Intl. Jetport Airport (PWM) to Boise Airport (BOI)

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Cheap Flights from Portland to Boise (PWM-BOI)

Prices were available within the past 7 days and start at $162 for one-way flights and $313 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Wed, Aug 20 - Sat, Aug 30
PWM
Portland
BOI
Boise
$313 Roundtrip, found 6 days ago
$313
Roundtrip
found 6 days ago
Select Delta flight, departing Wed, Aug 20 from Portland to Boise, returning Sat, Aug 30, priced at $313 found 6 days ago
Delta
Sat, Nov 15 - Wed, Dec 3
PWM
Portland
BOI
Boise
$318 Roundtrip, found 6 days ago
$318
Roundtrip
found 6 days ago
Select Delta flight, departing Sat, Nov 15 from Portland to Boise, returning Wed, Dec 3, priced at $318 found 6 days ago
Delta
Fri, Aug 22 - Sat, Aug 30
PWM
Portland
BOI
Boise
$330 Roundtrip, found 6 days ago
$330
Roundtrip
found 6 days ago
Select Delta flight, departing Fri, Aug 22 from Portland to Boise, returning Sat, Aug 30, priced at $330 found 6 days ago
Delta
Wed, Aug 20 - Sat, Aug 23
PWM
Portland
BOI
Boise
$333 Roundtrip, found 2 days ago
$333
Roundtrip
found 2 days ago
Select Delta flight, departing Wed, Aug 20 from Portland to Boise, returning Sat, Aug 23, priced at $333 found 2 days ago
Southwest Airlines
Wed, Sep 17 - Sat, Sep 20
PWM
Portland
BOI
Boise
$335 Roundtrip, found 6 days ago
$335
Roundtrip
found 6 days ago
Select Southwest Airlines flight, departing Wed, Sep 17 from Portland to Boise, returning Sat, Sep 20, priced at $335 found 6 days ago
United
Sat, Sep 27 - Sat, Oct 4
PWM
Portland
BOI
Boise
$337 Roundtrip, found 2 days ago
$337
Roundtrip
found 2 days ago
Select United flight, departing Sat, Sep 27 from Portland to Boise, returning Sat, Oct 4, priced at $337 found 2 days ago
United
Sat, Sep 27 - Sat, Oct 4
PWM
Portland
BOI
Boise
$338 Roundtrip, found 2 days ago
$338
Roundtrip
found 2 days ago
Select United flight, departing Sat, Sep 27 from Portland to Boise, returning Sat, Oct 4, priced at $338 found 2 days ago
Delta
Sat, Sep 27 - Sat, Oct 4
PWM
Portland
BOI
Boise
$342 Roundtrip, found 2 days ago
$342
Roundtrip
found 2 days ago
Select Delta flight, departing Sat, Sep 27 from Portland to Boise, returning Sat, Oct 4, priced at $342 found 2 days ago
American Airlines
Tue, Oct 7 - Tue, Oct 14
PWM
Portland
BOI
Boise
$360 Roundtrip, found 3 days ago
$360
Roundtrip
found 3 days ago
Select American Airlines flight, departing Tue, Oct 7 from Portland to Boise, returning Tue, Oct 14, priced at $360 found 3 days ago
Alaska Airlines
Tue, Sep 23 - Wed, Oct 1
PWM
Portland
BOI
Boise
$537 Roundtrip, found 1 day ago
$537
Roundtrip
found 1 day ago
Select Alaska Airlines flight, departing Tue, Sep 23 from Portland to Boise, returning Wed, Oct 1, priced at $537 found 1 day ago

Find the cheapest month to fly from Portland (PWM) to Boise (BOI)

September is typically the cheapest month to fly

From $305 - $772 per traveler.

Graph displaying average flight prices per month

Alternative airports near Boise

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Boise Airport BOI. Cheapest and Closest option available. Average driving time to city center is 8 minutes. Flights from $430
BOI
Boise Airport
CheapestClosest
Average driving time to city center8 min
Flights from $430
Flights from Portland (PWM) to Boise (BOI)
Origin airport
Portland Intl. Jetport
Destination airport
Boise
Airlines serving
Alaska Airlines, American Airlines, Delta, Southwest Airlines, United
Roundtrip price
$312
Distance
2266 mi

Portland to Boise Flights

The cheapest times to fly from Portland to Boise

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Portland to Boise are during the month of August. You can find some of the cheapest flights from Portland to Boise with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Portland to Boise

Sunday is one of the best days to book for cheap flights from Portland to Boise: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Portland to Boise

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Portland to Boise in 2025. You can also book with separate airlines for your outbound and return journeys, from $162 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Portland to Boise flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Portland to Boise airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from Portland Intl. Jetport Airport (PWM) to Boise Airport (BOI) cost?
Discover the latest flight deals from PWM to BOI by entering your preferred travel dates and searching on Expedia. Easily compare prices by departure date if you have flexibility with your schedule and use handy filters to explore prices for your preferred journey. As a member of One Key™, our free loyalty program, you can use Price Tracking to watch fares and receive notifications if prices go up or down.
What is the cheapest month to fly from PWM to BOI?
The cheapest flights from PWM to BOI are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
What is the cheapest airline that flies from PWM to BOI?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that'll take you from PWM to BOI. Sort your results by "Price (lowest to highest)" to snap up a great deal.
How many flights per day from Portland Intl. Jetport Airport (PWM) to Boise Airport (BOI)?
Nonstop flights from Portland Intl. Jetport Airport (PWM) to Boise Airport (BOI) aren't available daily, so you'll have to take a flight with a layover. Explore your options with Expedia's filters. Enter your travel details and click on either "1 Stop" or "2+ Stops."
What day of the week has the most flights from PWM to BOI?
Friday is typically the busiest day for flights, while Tuesday tends to be the quietest.* Remember that flight schedules can vary based on various factors, such as the season and airline.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Portland Intl. Jetport Airport (PWM) to Boise Airport (BOI)?
To reach Boise Airport (BOI) on schedule, book a flight that leaves Portland Intl. Jetport Airport (PWM) before 3 PM. The likelihood of cancellations is 22% higher, on average, for departures after this hour.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Portland Intl. Jetport Airport (PWM) to Boise Airport (BOI) last-minute?
Booking your plane ticket from PWM to BOI right before your getaway is typically more expensive. But if you're flexible with your schedule, you could bag a cheap last-minute fare.
Is it cheaper to book a PWM to BOI flight and hotel package?
Opting for a PWM to BOI flight and hotel package is generally cheaper than booking separately. With Expedia, you can enjoy the convenience of organizing your travels in one place. Choose from our impressive range of accommodations and then add flights, activities and car rentals to your booking. Bundle it all together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Portland Intl. Jetport Airport (PWM) to Boise Airport (BOI)?
If you booked your PWM to BOI flight within the last 24 hours, you may be able to cancel or modify it without fees. Depending on the airline and the type of fare you purchased, additional charges may apply for changes after that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal for more details.

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*Available to One Key members.