$56 Cheap Flights from Boise (BOI) to Portland (PDX)

View $56 flight on Tue, Nov 4, 2025Opens in a new window

Popular airlines from Boise Airport (BOI) to Portland International Airport (PDX)

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Cheap Flights from Boise to Portland (BOI-PDX)

Prices were available within the past 7 days and start at $56 for one-way flights and $101 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Southwest Airlines
Tue, Aug 12 - Tue, Aug 19
BOI
Boise
PDX
Portland
$101 Roundtrip, found 19 hours ago
$101
Roundtrip
found 19 hours ago
Select Southwest Airlines flight, departing Tue, Aug 12 from Boise to Portland, returning Tue, Aug 19, priced at $101 found 19 hours ago
Southwest Airlines
Wed, Oct 22 - Sat, Oct 25
BOI
Boise
PDX
Portland
$106 Roundtrip, found 4 days ago
$106
Roundtrip
found 4 days ago
Select Southwest Airlines flight, departing Wed, Oct 22 from Boise to Portland, returning Sat, Oct 25, priced at $106 found 4 days ago
Hawaiian Airlines
Tue, Aug 19 - Sat, Sep 6
BOI
Boise
PDX
Portland
$117 Roundtrip, found 2 days ago
$117
Roundtrip
found 2 days ago
Select Hawaiian Airlines flight, departing Tue, Aug 19 from Boise to Portland, returning Sat, Sep 6, priced at $117 found 2 days ago
Southwest Airlines
Tue, Aug 12 - Tue, Aug 19
BOI
Boise
PDX
Portland
$124 Roundtrip, found 19 hours ago
$124
Roundtrip
found 19 hours ago
Select Southwest Airlines flight, departing Tue, Aug 12 from Boise to Portland, returning Tue, Aug 19, priced at $124 found 19 hours ago
Southwest Airlines
Wed, Oct 22 - Sat, Oct 25
BOI
Boise
PDX
Portland
$129 Roundtrip, found 4 days ago
$129
Roundtrip
found 4 days ago
Select Southwest Airlines flight, departing Wed, Oct 22 from Boise to Portland, returning Sat, Oct 25, priced at $129 found 4 days ago
Alaska Airlines
Mon, Aug 18 - Sat, Aug 23
BOI
Boise
PDX
Portland
$137 Roundtrip, just found
$137
Roundtrip
just found
Select Alaska Airlines flight, departing Mon, Aug 18 from Boise to Portland, returning Sat, Aug 23, priced at $137 just found
Alaska Airlines
Tue, Aug 12 - Tue, Aug 19
BOI
Boise
PDX
Portland
$138 Roundtrip, found 19 hours ago
$138
Roundtrip
found 19 hours ago
Select Alaska Airlines flight, departing Tue, Aug 12 from Boise to Portland, returning Tue, Aug 19, priced at $138 found 19 hours ago
Southwest Airlines
Tue, Aug 5 - Wed, Aug 13
BOI
Boise
PDX
Portland
$142 Roundtrip, found 2 days ago
$142
Roundtrip
found 2 days ago
Select Southwest Airlines flight, departing Tue, Aug 5 from Boise to Portland, returning Wed, Aug 13, priced at $142 found 2 days ago
Delta
Tue, Sep 23 - Tue, Sep 30
BOI
Boise
PDX
Portland
$147 Roundtrip, found 4 hours ago
$147
Roundtrip
found 4 hours ago
Select Delta flight, departing Tue, Sep 23 from Boise to Portland, returning Tue, Sep 30, priced at $147 found 4 hours ago
United
Mon, Aug 18 - Sat, Aug 23
BOI
Boise
PDX
Portland
$177 Roundtrip, just found
$177
Roundtrip
just found
Select United flight, departing Mon, Aug 18 from Boise to Portland, returning Sat, Aug 23, priced at $177 just found

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

September is typically the cheapest month to fly

From $89 - $218 per traveler.

Graph displaying average flight prices per month

0
Flights from Boise (BOI) to Portland (PDX)
Origin airport
Boise
Destination airport
Portland Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, Hawaiian Airlines, Southwest Airlines, Spirit Airlines, United
Roundtrip price
$100
Distance
342 mi

Boise to Portland Flights

The cheapest times to fly from Boise to Portland

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 Boise to Portland are during the month of August. You can find some of the cheapest flights from Boise to Portland with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Boise to Portland

Sunday is one of the best days to book for cheap flights from Boise to Portland: 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 Boise to Portland

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 Boise to Portland in 2025. You can also book with separate airlines for your outbound and return journeys, from $56 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 Boise to Portland 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 Boise to Portland 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 Boise Airport (BOI) to Portland Intl. Airport (PDX) cost?
Find cheap return flights from Boise Airport (BOI) to Portland Intl. Airport (PDX) starting from $116. Book your seat and start your adventure. This information is based on the cheapest price found on Expedia for this return journey departing within the next three months. This airfare is for a Alaska Airlines flight leaving BOI on August 5 2025 and touching down at PDX. The price was last updated on July 9 2025 and has not changed since.
What is the cheapest month to fly from BOI to PDX?
The cheapest flights from BOI to PDX are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
Which airlines fly direct from Boise Airport (BOI) to Portland Intl. Airport (PDX)?
When departing from Boise Airport (BOI), you can catch a nonstop flight to Portland Intl. Airport (PDX) with Alaska Airlines.
What is the cheapest airline that flies from BOI to PDX?
Jet off from BOI to PDX with Alaska Airlines. This carrier currently offers the cheapest one-way ticket on this route, starting from $79. This fare is based on the lowest price found on Expedia departing within the next three months. The flight takes off from BOI on October 4 2025. Prices were last updated on July 9 2025 and have not changed since.
How many flights per day from Boise Airport (BOI) to Portland Intl. Airport (PDX)?
Every day on average, 5 direct flights take off from Boise Airport (BOI) to Portland Intl. Airport (PDX). Choose the departure time that best suits your plans.
What are the most popular departure times for flights from Boise Airport (BOI) to Portland Intl. Airport (PDX)?
Flights between BOI and PDX are busiest at 7 AM. If you're after a quieter experience and potentially cheaper prices, look for a departure that's outside typical rush times.
What day of the week has the most flights from BOI to PDX?
If you jet off on a Friday, you'll get the biggest range of choices for flights from Boise Airport (BOI) to Portland Intl. Airport (PDX).
What is the earliest flight from Boise Airport (BOI) to Portland Intl. Airport (PDX)?
Boise Airport (BOI)'s first flight to Portland Intl. Airport (PDX) takes off at approximately 7:00AM UTC-7. With a travel time of 1h 31m, you'll touch down at around 7:31AM UTC-8.
How long does it take to fly from Boise Airport (BOI) to Portland Intl. Airport (PDX)?
It takes about 1 hour and 25 minutes to fly the 340 mi from BOI to PDX.
What airline has the least delays from BOI to PDX?
With 86% of journeys typically landing on time, Alaska Airlines has the best on-time performance for nonstop flights from Boise Airport (BOI) to Portland Intl. Airport (PDX). To monitor your flight status and get notifications if anything changes, simply head to the Expedia App.
What is the best time to fly from Boise Airport (BOI) to Portland Intl. Airport (PDX)?
Choose a flight from Boise Airport (BOI) to Portland Intl. Airport (PDX) that leaves before 3 PM to reduce the risk of cancellations and delays. Departures later than this are on average 22% more likely to be canceled.**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.
What airports do you fly into for Portland from Boise Airport (BOI)?
Check out your flight options from Boise Airport (BOI) to Portland Intl. Airport (PDX). This is the only Portland airport you can land at if you're taking a direct flight.
Is it cheaper to buy a plane ticket from Boise Airport (BOI) to Portland Intl. Airport (PDX) last-minute?
Waiting until right before your break to book your flight from BOI to PDX often results in higher prices. Although you may find some last-minute offers, they aren't always guaranteed. Allow some flexibility in your schedule for the best chance of getting a bargain.
Is it cheaper to book a BOI to PDX flight and hotel package?
Opting for a BOI to PDX flight and hotel package is generally cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels in one place. Choose from our wide range of stays and then add activities, car rentals and flights 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 Boise Airport (BOI) to Portland Intl. Airport (PDX)?
Typically, it's possible to reschedule or cancel your BOI to PDX flight. However, if the booking was made more than 24 hours ago, additional fees may apply. Check your airline's policies in your itinerary to see what changes are allowed and whether any costs are involved. You'll also find more information on our Customer Service portal.

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*Available to One Key members.