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Cheap Flights from Portland to Boise

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Flight deals from Portland to Boise

Looking for a cheap last-minute deal or the best return flight from Portland to Boise? Find the lowest prices on one-way and return tickets right here.
Boise.R 1,252 per passenger.Departing Tue, 5 May.One-way flight with Southwest Airlines.Outbound indirect flight with Southwest Airlines, departs from Portland on Tue, 5 May, arriving in Boise.Price includes taxes and charges.From R 1,252, select.
Boise.R 1,254 per passenger.Departing Wed, 11 Mar.One-way flight with Southwest Airlines.Outbound indirect flight with Southwest Airlines, departs from Portland on Wed, 11 Mar, arriving in Boise.Price includes taxes and charges.From R 1,254, select.
Boise.R 1,621 per passenger.Departing Sat, 13 Jun.One-way flight with United.Outbound indirect flight with United, departs from Portland on Sat, 13 Jun, arriving in Boise.Price includes taxes and charges.From R 1,621, select.
Boise.R 1,652 per passenger.Departing Sun, 15 Mar.One-way flight with Alaska Airlines.Outbound direct flight with Alaska Airlines departs from Portland on Sun, 15 Mar, arriving in Boise.Price includes taxes and charges.From R 1,652, select.
Boise.R 2,146 per passenger.Departing Sat, 13 Jun.One-way flight with Alaska Airlines.Outbound direct flight with Alaska Airlines departs from Portland on Sat, 13 Jun, arriving in Boise.Price includes taxes and charges.From R 2,146, select.
Boise.R 2,216 per passenger.Departing Fri, 11 Sep.One-way flight with Delta.Outbound indirect flight with Delta, departs from Portland on Fri, 11 Sep, arriving in Boise.Price includes taxes and charges.From R 2,216, select.
Boise.R 2,216 per passenger.Departing Thu, 15 Oct.One-way flight with Delta.Outbound indirect flight with Delta, departs from Portland on Thu, 15 Oct, arriving in Boise.Price includes taxes and charges.From R 2,216, select.
Boise.R 2,572 per passenger.Departing Fri, 11 Sep.One-way flight with Alaska Airlines.Outbound direct flight with Alaska Airlines departs from Portland on Fri, 11 Sep, arriving in Boise.Price includes taxes and charges.From R 2,572, select.

Find the cheapest month to fly from Portland to Boise

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Portland to Boise flights are currently cheapest in May.
Feb
from R 2,854
Mar
from R 1,254
Apr
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May
from R 1,252
Jun
from R 1,621
Jul
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Aug
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Sep
from R 2,216
Oct
from R 2,216
Nov
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Dec
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Jan
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Direct flights from Portland to Boise

Portland to Boise: Alternative routes

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

Boise

5km from central Boise
ClosestCheapest
from R 1,252
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Portland to Boise: Flight information

The things to know before you go.
Cheapest flight foundR 1,248
Cheapest month to flyMay
Average flight time1 hr, 19 mins
Most popular airlineAlaska Airlines
Average flights per week92

Finding cheap flights from Portland to Boise: Frequently asked questions

The best price we found for a return flight from Portland to Boise is R 2,606. 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 19 minutes is the average flight time from Portland to Boise.
Alaska Airlines, Hawaiian Airlines and Horizon Air fly direct from Portland to Boise.
As of February 2026, there are 92 flights per week flying from Portland to Boise.
The cheapest month to fly from Portland to Boise is usually March.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Portland Airport to Boise Airport on Thursday, 12 March 2026.
Yes – the average flight time is 1 hour and 19 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 Boise 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 Boise is around 40 days in advance, so don’t leave your flight to the last minute.
Currently, Alaska Airlines offers the cheapest flight tickets to Boise.

Travelling from Portland International Airport (PDX) to Boise Air Terminal (Gowen Field) Airport (BOI): what you need to know

  • Jump on a direct flight from Portland International Airport to Boise Air Terminal (Gowen Field) Airport and you'll be travelling for an average of 1 hour 10 minutes.

  • Flights from PDX to BOI start from 07:00 — the earliest with Alaska Airlines. The latest departure is at 20:25 with Alaska Airlines. In total, you can choose from 36 weekly Portland International Airport to Boise Air Terminal (Gowen Field) Airport flights.

  • Arrive at the airport on time so you don't miss your PDX to BOI flight. Be there at least two hours ahead for international flights and an hour early for domestic departures to prevent a last-minute sprint to your gate.

  • Flying during a peak time such as July? School holidays and other popular periods can result in longer lines at check-in and security. Play it safe and arrive up to four hours before an international flight and two hours before domestic departures.

  • Alaska Airlines has direct flights from Portland International Airport to Boise Air Terminal (Gowen Field) Airport. Book with this popular carrier, then get ready to check out the sights in Boise — and maybe even more of United States if your schedule allows.

  • Alaska Airlines is the airline most travellers choose to fly with on this route.

  • Alaska Airlines stands out as the most punctual carrier for PDX to BOI flights, with 83.99% of services reaching their destination on schedule.

  • If you want to include a stop along the way, simply deselect 'Direct flights only' when searching for your ticket from Portland International Airport to Boise Air Terminal (Gowen Field) Airport. These are the top stopovers between PDX and BOI:

    • Seattle-Tacoma International Airport

    • Sacramento International Airport

    • Metropolitan Oakland International Airport

How to find the cheapest flights from Portland International Airport (PDX) to Boise Air Terminal (Gowen Field) Airport (BOI)

  • Currently, R 1,252 is the lowest price we've seen for a one-way Portland International Airport to Boise Air Terminal (Gowen Field) Airport flight. The best price for a return ticket is R 2,606. Remember that fares could change due to demand at the time of booking.

  • Book seven months before flying. After crunching the numbers on our calendar, this is how far you'll want to book ahead to find cheap tickets from PDX to BOI.

  • The cheapest month for flights from Portland International Airport to Boise Air Terminal (Gowen Field) Airport is June. Use the 'Whole month' tool to see the lowest prices if you have flexible travel dates.

  • Cut down on the time spent looking for cheap flights from PDX to BOI by setting up a Price Alert. You'll receive an email or notification on the app when a lower fare becomes available.

  • Tailor your flights using filters. Pick your departure and arrival times, airlines and total journey duration. You can also sort your results by 'Best,' 'Cheapest' or 'Fastest' flights from Portland International Airport to Boise Air Terminal (Gowen Field) Airport.

Handy information about Portland International Airport (PDX)

  • PDX is located at 7000 NE Airport Way.

  • Portland International Airport earns top marks for on-time performance. 83.65% of flights that take off from PDX land on time.

  • Central Portland to Portland International Airport is around 19 kilometres. Depending on traffic, it'll take about 20 minutes to get there if you're driving, ride-sharing or catching a cab.

  • Expect a trip time of roughly 45 minutes on public transport.

  • Get your journey off to a leisurely start by staying near PDX. Whether you're catching an early flight from Portland International Airport to Boise Air Terminal (Gowen Field) Airport or just don't want to be rushed, these hotels are the answer:

Arriving at Boise Air Terminal (Gowen Field) Airport (BOI)

Getting from Boise Air Terminal (Gowen Field) Airport (BOI) to central Boise

  • The street address for BOI is 3201 Airport Way.

  • Boise Air Terminal (Gowen Field) Airport to central Boise has a drive time of about 20 minutes. It's approximately 18 kilometres away.

  • It'll take around 1 hour 35 minutes if you're travelling on public transport.

When to fly to Boise Air Terminal (Gowen Field) Airport (BOI)

  • It's time to choose your dates for your flight from Portland International Airport to Boise Air Terminal (Gowen Field) Airport. July is the busiest month to head to Boise. If you prefer a more laid-back vibe, go in May.

  • Before locking in your flight from Portland International Airport to Boise Air Terminal (Gowen Field) Airport, consider the type of weather you like. July is the warmest month in Boise, with temperatures ranging from 15ºC (59ºF) to 35ºC (95ºF).

  • If you want to travel in cooler conditions, search for a cheap ticket from PDX to BOI in January. Average temperatures are between -11ºC (12ºF) and 5ºC (41ºF) then.

Explore more of United States

  • You've seen Boise, now it's time to discover other parts of United States. Journey around 467 kilometres north to Spokane to check off its must-visit sights. From Manito Park to Northwest Museum of Arts & Culture and Spokane Falls, you've got a jam-packed schedule ahead.

  • If you're interested in discovering another well-known destination in United States, head for Salt Lake City, roughly 483 kilometres south-east of Boise. Temple Square, Utah State Capitol and Red Butte Garden are among its highlights.

Plan the rest of your trip from Portland to Boise

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.