Cheap Flights from Portland to Boise

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Compare Portland to Boise flight deals

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Flight deals from Portland to Boise

Looking for a cheap last-minute deal or the best return flight from Portland Airport to Boise Airport? If you want to travel next month, return fares start from $425. Find the lowest prices on one-way and return tickets right here.

Boise.$383 per passenger.Departing Fri, 8 Jan, returning Fri, 22 Jan.Return flight with Delta.Outbound indirect flight with Delta, departs from Portland on Fri, 8 Jan, arriving in Boise.Inbound indirect flight with Delta, departs from Boise on Fri, 22 Jan, arriving in Portland.Price includes taxes and charges.From $383, select.

Boise.$425 per passenger.Departing Thu, 22 Oct, returning Sun, 25 Oct.Return flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from Portland on Thu, 22 Oct, arriving in Boise.Inbound indirect flight with Frontier Airlines, departs from Boise on Sun, 25 Oct, arriving in Portland.Price includes taxes and charges.From $425, select.

Boise.$426 per passenger.Departing Tue, 27 Oct, returning Tue, 3 Nov.Return flight with Southwest Airlines.Outbound indirect flight with Southwest Airlines, departs from Portland on Tue, 27 Oct, arriving in Boise.Inbound indirect flight with Southwest Airlines, departs from Boise on Tue, 3 Nov, arriving in Portland.Price includes taxes and charges.From $426, select.

Boise.$428 per passenger.Departing Sat, 7 Nov, returning Wed, 11 Nov.Return flight with United.Outbound indirect flight with United, departs from Portland on Sat, 7 Nov, arriving in Boise.Inbound indirect flight with United, departs from Boise on Wed, 11 Nov, arriving in Portland.Price includes taxes and charges.From $428, select.

Boise.$494 per passenger.Departing Thu, 4 Mar, returning Tue, 9 Mar.Return flight with Delta.Outbound indirect flight with Delta, departs from Portland on Thu, 4 Mar, arriving in Boise.Inbound indirect flight with Delta, departs from Boise on Tue, 9 Mar, arriving in Portland.Price includes taxes and charges.From $494, select.

Boise.$554 per passenger.Departing Fri, 11 Dec, returning Fri, 25 Dec.Return flight with Southwest Airlines.Outbound indirect flight with Southwest Airlines, departs from Portland on Fri, 11 Dec, arriving in Boise.Inbound indirect flight with Southwest Airlines, departs from Boise on Fri, 25 Dec, arriving in Portland.Price includes taxes and charges.From $554, select.

Boise.$631 per passenger.Departing Fri, 12 Feb, returning Fri, 26 Feb.Return flight with Delta.Outbound indirect flight with Delta, departs from Portland on Fri, 12 Feb, arriving in Boise.Inbound indirect flight with Delta, departs from Boise on Fri, 26 Feb, arriving in Portland.Price includes taxes and charges.From $631, select.

Boise.$643 per passenger.Departing Sat, 1 May, returning Mon, 3 May.Return flight with Southwest Airlines.Outbound indirect flight with Southwest Airlines, departs from Portland on Sat, 1 May, arriving in Boise.Inbound indirect flight with Southwest Airlines, departs from Boise on Mon, 3 May, arriving in Portland.Price includes taxes and charges.From $643, select.

Boise.$649 per passenger.Departing Fri, 11 Jun, returning Sat, 12 Jun.Return flight with Delta.Outbound indirect flight with Delta, departs from Portland on Fri, 11 Jun, arriving in Boise.Inbound indirect flight with Delta, departs from Boise on Sat, 12 Jun, arriving in Portland.Price includes taxes and charges.From $649, select.

Boise.$649 per passenger.Departing Fri, 9 Apr, returning Fri, 23 Apr.Return flight with Delta.Outbound indirect flight with Delta, departs from Portland on Fri, 9 Apr, arriving in Boise.Inbound indirect flight with Delta, departs from Boise on Fri, 23 Apr, arriving in Portland.Price includes taxes and charges.From $649, select.

Boise.$829 per passenger.Departing Wed, 30 Sep, returning Sat, 3 Oct.Return flight with Delta.Outbound indirect flight with Delta, departs from Portland on Wed, 30 Sep, arriving in Boise.Inbound indirect flight with Delta, departs from Boise on Sat, 3 Oct, arriving in Portland.Price includes taxes and charges.From $829, select.

Boise.$1,027 per passenger.Departing Fri, 25 Sep, returning Sat, 26 Sep.Return flight with Delta.Outbound indirect flight with Delta, departs from Portland on Fri, 25 Sep, arriving in Boise.Inbound indirect flight with Delta, departs from Boise on Sat, 26 Sep, arriving in Portland.Price includes taxes and charges.From $1,027, 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 January.

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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 $383

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Portland to Boise: Flight information

The things to know before you go.

Cheapest flight found	$383
Cheapest month to fly	January
Average flight time	1 hr, 19 mins
Most popular airline	Alaska Airlines
Average flights per week	63

Finding cheap flights from Portland to Boise: Frequently asked questions

How much are return flights from Portland to Boise?

The best price we found for a return flight from Portland to Boise is $383. 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.

How long does it take to fly from Portland to Boise?

1 hour and 19 minutes is the average flight time from Portland to Boise.

Which airlines fly direct from Portland to Boise?

Alaska Airlines, Horizon Air and SkyWest Airlines fly direct from Portland to Boise.

How many flights are there a week from Portland to Boise?

As of September 2026, there are 63 flights per week flying from Portland to Boise.

When is the cheapest time to fly from Portland to Boise?

The cheapest month to fly from Portland to Boise is usually January.

Which upcoming date is cheapest to fly from Portland Airport to Boise Airport on?

After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Portland Airport to Boise Airport on Friday, 8 January 2027.

Can I get a direct flight from Portland Airport to Boise Airport?

Yes – the average flight time is 1 hour and 19 minutes.

How can I find the best flight deal to Boise?

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.

When is the best time to book flights to Boise?

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.

Which is the cheapest airline to fly from Portland Airport to Boise with?

Currently, Delta offers the cheapest flight tickets to Boise.

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

The average time for a direct flight from Portland Airport to Boise Airport is 1 hour 20 minutes.
Every week, there are 30 Portland Airport to Boise Airport flights. If you prefer to get going as early as possible, take the 07:00 Alaska Airlines flight. If you're eager to make the most of your day before flying, the last departure is at 21:49 with Alaska Airlines.
For a stress-free journey, arrive at the airport two hours ahead of international flights and one hour before domestic departures. This way, you'll have plenty of time to board your PDX to BOI flight.
Be prepared for bigger queues during popular months like July. Arriving up to four hours in advance for an international flight and two hours for a domestic departure is a good idea.
Alaska Airlines offers direct flights from Portland Airport to Boise Airport. Book with this popular carrier, then get ready to tick off the sights in Boise — and maybe even more of the United States if you have time.
The airline that tops the list for bookings on this route is Alaska Airlines.
Alaska Airlines is the most punctual carrier that offers PDX to BOI flights. A reliable 83.27% of its services on this route arrive as planned.
Think about adding a stopover when booking your ticket from Portland Airport to Boise Airport. Simply deselect 'Direct flights only' to break up your journey, or visit a new city along the way. Here's where you can stop between PDX and BOI:
- Seattle / Tacoma International Airport
- Sacramento International Airport
- Oakland Metropolitan Oak Airport

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

The cheapest price we've found for a one-way Portland Airport to Boise Airport flight is $213. A return fare right now is $383. Depending on the availability when you book, these fares may change.
To score cheap tickets from PDX to BOI, reserve your trip one month before your planned departure.
The cheapest month for flights from Portland Airport to Boise Airport is June. Use the 'Whole month' tool to find the lowest prices if you have a flexible travel schedule.
Getting your hands on cheap flights from PDX to BOI is easy with Price Alerts. Simply create one of these automatic alerts and we'll let you know as soon as a new deal comes up.
Tailor your flights with filters. Pick your preferred departure and arrival times, total journey duration and airlines. You can also sort results by 'Cheapest,' 'Best' or 'Fastest' flights from Portland Airport to Boise Airport.

Handy information about Portland Airport (PDX)

The address for PDX is 7000 NE Airport Way.
Portland Airport earns top marks for on-time performance. 83% of flights that take off from PDX reach their destination on time.
To get to Portland Airport from central Portland, it takes around 20 minutes if you're travelling by car. Of course, this depends on traffic. It's approximately 19 kilometres from the airport to the city centre.
You can expect a trip time of about 40 minutes when using public transport.
Looking for a handy hotel close to PDX? If you're catching an early flight from Portland Airport to Boise Airport, these stays will have you sleeping moments from your departure gate:

Arriving at Boise Airport (BOI)

Consider staying in a hotel near BOI if you have a late Portland Airport to Boise Airport flight. Choose one of these options and skip the long transfer:
Say yes to new adventures by picking up a Boise Airport rental car. Grab your wheels from Budget, Alamo or Avis to explore Boise and beyond.
Reserving your vehicle from Boise Airport around one week in advance can help you secure the lowest rate.

Getting from Boise Airport (BOI) to central Boise

The street address for BOI is 3201 Airport Way.
Boise Airport is approximately 6 kilometres from central Boise. Driving there takes about 15 minutes.
Getting there by public transport will take you around 30 minutes.

When to fly to Boise Airport (BOI)

October is the busiest month for flights from Portland Airport to Boise Airport. To skip the crowds, head to Boise in March.
Book your flight from Portland Airport to Boise Airport for July if you want to visit Boise during its warmest month. Expect temperatures of between 15ºC and 35ºC.
Search for cheap tickets from PDX to BOI in January if you like cooler conditions. Temperatures are at their lowest then, ranging between -11ºC and 5ºC on average.

Explore more of the United States

You've seen Boise, now it's time to explore other corners of the United States. Journey about 467 kilometres north to Spokane to tick off its leading attractions. From Riverside State Park to Spokane Falls (Upper Falls) and Cathedral of Our Lady of Lourdes, you'll have a full itinerary ahead.
Salt Lake City is another standout destination in the United States and is around 483 kilometres south-east of Boise. No trip is complete without experiencing Salt Lake Utah Temple, Temple Square and Salt Lake City Tabernacle.