Skyscanner home

Cheap Flights from Boise to Portland

Compare Boise to Portland flight deals

Find the cheapest month or even day of the year to fly to Portland

Book the best Portland fare with no extra fees

Flight deals from Boise to Portland

Looking for a cheap last-minute deal or the best return flight from Boise Airport to Portland Airport? If you want to travel next month, return fares start from R 3,961. Find the lowest prices on one-way and return tickets right here.
Portland.R 1,536 per passenger.Departing Wed, 16 Sep.One-way flight with Southwest Airlines.Outbound indirect flight with Southwest Airlines, departs from Boise on Wed, 16 Sep, arriving in Portland.Price includes taxes and charges.From R 1,536, select.
Portland.R 1,931 per passenger.Departing Sun, 15 Nov.One-way flight with Delta.Outbound indirect flight with Delta, departs from Boise on Sun, 15 Nov, arriving in Portland.Price includes taxes and charges.From R 1,931, select.
Portland.R 1,932 per passenger.Departing Sun, 25 Oct.One-way flight with Delta.Outbound indirect flight with Delta, departs from Boise on Sun, 25 Oct, arriving in Portland.Price includes taxes and charges.From R 1,932, select.
Portland.R 1,936 per passenger.Departing Fri, 21 Aug.One-way flight with Delta.Outbound indirect flight with Delta, departs from Boise on Fri, 21 Aug, arriving in Portland.Price includes taxes and charges.From R 1,936, select.
Portland.R 1,971 per passenger.Departing Tue, 21 Jul.One-way flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from Boise on Tue, 21 Jul, arriving in Portland.Price includes taxes and charges.From R 1,971, select.
Portland.R 2,946 per passenger.Departing Fri, 25 Dec.One-way flight with Southwest Airlines.Outbound indirect flight with Southwest Airlines, departs from Boise on Fri, 25 Dec, arriving in Portland.Price includes taxes and charges.From R 2,946, select.
Portland.R 2,981 per passenger.Departing Wed, 22 Jul.One-way flight with Alaska Airlines.Outbound direct flight with Alaska Airlines departs from Boise on Wed, 22 Jul, arriving in Portland.Price includes taxes and charges.From R 2,981, select.
Portland.R 3,038 per passenger.Departing Sun, 28 Jun.One-way flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from Boise on Sun, 28 Jun, arriving in Portland.Price includes taxes and charges.From R 3,038, select.

Find the cheapest month to fly from Boise to Portland

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Boise to Portland flights are currently cheapest in September.
Jun
from R 3,038
Jul
from R 1,971
Aug
from R 1,936
Sep
from R 1,536
Oct
from R 1,932
Nov
from R 1,931
Dec
from R 2,946
Jan
Find prices
Feb
Find prices
Mar
Find prices
Apr
Find prices
May
Find prices

Direct flights from Boise to Portland

Boise to Portland: Alternative routes

Compare routes from Boise to Portland below. You may find an airport to fly into that's cheaper, faster, or easier than Portland.

Portland

10km from central Portland
ClosestCheapest
from R 1,536
Search flights

Salem

72km from central Portland
Search flights

Boise to Portland: Flight information

The things to know before you go.
Cheapest flight foundR 1,536
Cheapest month to flySeptember
Average flight time1 hr, 22 mins
Most popular airlineAlaska Airlines
Average flights per week64

Finding cheap flights from Boise to Portland: Frequently asked questions

The best price we found for a return flight from Boise to Portland is R 3,070. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
1 hour and 22 minutes is the average flight time from Boise to Portland.
Alaska Airlines, Horizon Air and SkyWest Airlines fly direct from Boise to Portland.
As of June 2026, there are 64 flights per week flying from Boise to Portland.
The cheapest month to fly from Boise to Portland is usually November.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Boise Airport to Portland Airport on Tuesday, 10 November 2026.
Yes – the average flight time is 1 hour and 22 minutes.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Portland but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.

We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Portland is around 40 days in advance, so don’t leave your flight to the last minute.

Currently, United and Alaska Airlines offer the cheapest flight tickets to Portland.

Travelling from Boise Airport (BOI) to Portland Airport (PDX): what you need to know

  • Hop on a direct flight from Boise Airport to Portland Airport and you'll be travelling for an average of 1 hour 20 minutes.

  • The timezone in Portland is UTC-8, which is one hour behind Boise.

  • Choose from 30 weekly Boise Airport to Portland Airport flights. The 06:00 departure with Alaska Airlines is the earliest available. Alaska Airlines operates the latest service of the day at 20:46.

  • Arriving two hours before an international flight and one hour ahead of a domestic departure are tried-and-true travel tips. Be at the airport on time to catch your BOI to PDX flight.

  • Be prepared for longer lines in popular months like October. Arriving up to four hours in advance for an international flight and two hours for a domestic departure will give you ample time for security and boarding.

  • Alaska Airlines offers direct flights from Boise Airport to Portland Airport. Book with this popular carrier, then get ready to see the sights in Portland — and maybe even more of the United States if you have time.

  • The majority of passengers choose to travel with Alaska Airlines on this route.

  • Alaska Airlines leads the way as the most punctual carrier for BOI to PDX flights, with 85.19% of its services landing on schedule.

  • If you want to split up your journey, just uncheck 'Direct flights only' when searching for your ticket from Boise Airport to Portland Airport. These are the top stopovers between BOI and PDX:

    • Seattle / Tacoma International Airport

    • Sacramento International Airport

    • San Jose International Airport

How to find the cheapest flights from Boise Airport (BOI) to Portland Airport (PDX)

  • R 1,536 is currently the best price for a one-way Boise Airport to Portland Airport flight. Return flights start at R 3,070. These prices may change based on demand.

  • Book one month before flying. After crunching the numbers on our calendar, this is how far you should book ahead to find cheap tickets from BOI to PDX.

  • The cheapest month for flights from Boise Airport to Portland Airport is June. Use the 'Whole month' tool to find the lowest prices if you have flexible travel dates.

  • Getting your hands on cheap flights from BOI to PDX is a cinch with Price Alerts. All you need to do is create one of these automatic alerts and we'll notify you as soon as there's a better deal.

  • Secure the perfect flight for you with the help of the filters. To see the 'Cheapest,' 'Fastest' or 'Best' flights from Boise Airport to Portland Airport, use the 'Sort by' function. You can also filter results by airline, arrival and departure times, and number of stops.

Handy information about Boise Airport (BOI)

  • BOI's address is 3201 Airport Way.

  • Boise Airport gets top marks for its on-time performance. 84% of flights that take off from BOI arrive at their destination as scheduled.

  • Boise Airport is about 6 kilometres from central Boise. If you're driving, ride-sharing or catching a taxi from the centre, it'll take 15 minutes or so to arrive, depending on the traffic.

  • The trip on public transport will take about 30 minutes.

  • Have an early flight from Boise Airport to Portland Airport? Avoid the last-minute rush to the terminal (and sneak in some extra precious sleep) by choosing one of these stays near BOI:

Arriving at Portland Airport (PDX)

When to fly to Portland Airport (PDX)

  • It's time to work out your travel dates for your flight from Boise Airport to Portland Airport. July is the most popular month to head to Portland. If you prefer a more laid-back vibe, go in March.

  • When booking your flight from Boise Airport to Portland Airport, think about the type of weather you enjoy. August is the warmest month in Portland, with the temperature ranging from 12ºC (54ºF) to 31ºC (88ºF).

  • January has average temperatures of between -2ºC (28ºF) and 10ºC (50ºF). Search for cheap tickets from BOI to PDX around that time if you want to travel in cooler conditions.

Explore more of the United States

  • Seattle is just one of the many places in the United States waiting to be discovered once you've seen Portland. Around 241 kilometres away to the north, its top attractions include Space Needle, Pike Place Market and Seattle Skyline.

  • Spokane is another must-experience destination in the United States and is around 467 kilometres north-east of Portland. No trip is complete without visiting Riverside State Park, Spokane Falls (Upper Falls) and Cathedral of Our Lady of Lourdes.

Plan the rest of your trip from Boise to Portland

Prices shown on this page are estimated lowest prices only. Found in the last 12 days.