$124 Cheap Flights from Portland (PWM) to Boise (BOI)

View $124 flight on Sat, Nov 1, 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 $124 for one-way flights and $242 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Wed, Oct 22 - Wed, Oct 29
PWM
Portland
BOI
Boise
$242 Roundtrip, found 6 days ago
$242
Roundtrip
found 6 days ago
Select United flight, departing Wed, Oct 22 from Portland to Boise, returning Wed, Oct 29, priced at $242 found 6 days ago
Delta
Wed, Oct 22 - Wed, Oct 29
PWM
Portland
BOI
Boise
$247 Roundtrip, found 6 days ago
$247
Roundtrip
found 6 days ago
Select Delta flight, departing Wed, Oct 22 from Portland to Boise, returning Wed, Oct 29, priced at $247 found 6 days ago
Delta
Thu, Oct 23 - Tue, Oct 28
PWM
Portland
BOI
Boise
$269 Roundtrip, found 6 days ago
$269
Roundtrip
found 6 days ago
Select Delta flight, departing Thu, Oct 23 from Portland to Boise, returning Tue, Oct 28, priced at $269 found 6 days ago
Delta
Fri, Oct 24 - Tue, Oct 28
PWM
Portland
BOI
Boise
$286 Roundtrip, found 6 days ago
$286
Roundtrip
found 6 days ago
Select Delta flight, departing Fri, Oct 24 from Portland to Boise, returning Tue, Oct 28, priced at $286 found 6 days ago
United
Wed, Oct 22 - Wed, Oct 29
PWM
Portland
BOI
Boise
$290 Roundtrip, found 6 days ago
$290
Roundtrip
found 6 days ago
Select United flight, departing Wed, Oct 22 from Portland to Boise, returning Wed, Oct 29, priced at $290 found 6 days ago
Delta
Wed, Oct 22 - Fri, Oct 24
PWM
Portland
BOI
Boise
$291 Roundtrip, found 5 days ago
$291
Roundtrip
found 5 days ago
Select Delta flight, departing Wed, Oct 22 from Portland to Boise, returning Fri, Oct 24, priced at $291 found 5 days ago
Delta
Wed, Oct 22 - Tue, Oct 28
PWM
Portland
BOI
Boise
$292 Roundtrip, found 5 days ago
$292
Roundtrip
found 5 days ago
Select Delta flight, departing Wed, Oct 22 from Portland to Boise, returning Tue, Oct 28, priced at $292 found 5 days ago
American Airlines
Wed, Oct 29 - Tue, Nov 4
PWM
Portland
BOI
Boise
$342 Roundtrip, found 20 hours ago
$342
Roundtrip
found 20 hours ago
Select American Airlines flight, departing Wed, Oct 29 from Portland to Boise, returning Tue, Nov 4, priced at $342 found 20 hours ago
Southwest Airlines
Wed, Oct 29 - Tue, Nov 4
PWM
Portland
BOI
Boise
$347 Roundtrip, found 20 hours ago
$347
Roundtrip
found 20 hours ago
Select Southwest Airlines flight, departing Wed, Oct 29 from Portland to Boise, returning Tue, Nov 4, priced at $347 found 20 hours ago
Alaska Airlines
Sun, Nov 9 - Wed, Nov 19
PWM
Portland
BOI
Boise
$642 Roundtrip, found 1 day ago
$642
Roundtrip
found 1 day ago
Select Alaska Airlines flight, departing Sun, Nov 9 from Portland to Boise, returning Wed, Nov 19, priced at $642 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 $282 - $858 per traveler.

Frequently asked questions

How much does a flight from Portland Intl. Jetport Airport (PWM) to Boise Airport (BOI) cost?
Lock in a cheap one-way flight from $124 or cheap return flight from $242 from Portland Intl. Jetport Airport (PWM) to Boise Airport (BOI) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight deals on this route.
What is the cheapest month to fly from Portland Intl. Jetport Airport (PWM) to Boise Airport (BOI)?
Planning your trip for October is a good way to save, as it's the cheapest month for flights between PWM and BOI. You'll usually find the lowest fares during the off-season.
What is the cheapest airline that flies from Portland Intl. Jetport Airport (PWM) to Boise Airport (BOI)?
Expedia's filter tool lets you easily compare different airlines, travel time and fares all in one place. Customize the search to your preferences, then sort by "Price (lowest to highest)" to see which carrier offers the cheapest PWM to BOI flight.
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.

Travel information

Travel information

Origin airport
Portland Intl. Jetport
Destination airport
Boise
Airlines serving
Alaska Airlines, American Airlines, Delta, Southwest Airlines, United
Roundtrip price
$241
Distance
2266 mi

Book with confidence

Book with confidence

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 October. 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 $124 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.

 

Portland to Boise Flights

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*Available to One Key members.