Skyscanner home

Cheap Flights from Billings (BIL) to Portland (PDX)

Compare Billings 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 Billings to Portland

Looking for a cheap last-minute deal or the best return flight from Billings Airport to Portland Airport? If you want to travel next month, return fares start from $339. Find the lowest prices on one-way and return tickets right here.
Portland.$339 per passenger.Departing Wed, 19 Aug, returning Wed, 26 Aug.Return flight with Delta.Outbound indirect flight with Delta, departs from Billings on Wed, 19 Aug, arriving in Portland.Inbound indirect flight with Delta, departs from Portland on Wed, 26 Aug, arriving in Billings.Price includes taxes and charges.From $339, select.
Portland.$339 per passenger.Departing Wed, 14 Oct, returning Wed, 21 Oct.Return flight with Delta.Outbound indirect flight with Delta, departs from Billings on Wed, 14 Oct, arriving in Portland.Inbound indirect flight with Delta, departs from Portland on Wed, 21 Oct, arriving in Billings.Price includes taxes and charges.From $339, select.
Portland.$354 per passenger.Departing Sat, 5 Sep, returning Sun, 6 Sep.Return flight with Delta.Outbound indirect flight with Delta, departs from Billings on Sat, 5 Sep, arriving in Portland.Inbound indirect flight with Delta, departs from Portland on Sun, 6 Sep, arriving in Billings.Price includes taxes and charges.From $354, select.
Portland.$468 per passenger.Departing Thu, 14 Jan, returning Thu, 21 Jan.Return flight with Delta.Outbound indirect flight with Delta, departs from Billings on Thu, 14 Jan, arriving in Portland.Inbound indirect flight with Delta, departs from Portland on Thu, 21 Jan, arriving in Billings.Price includes taxes and charges.From $468, select.
Portland.$635 per passenger.Departing Wed, 25 Nov, returning Fri, 27 Nov.Return flight with Delta.Outbound indirect flight with Delta, departs from Billings on Wed, 25 Nov, arriving in Portland.Inbound indirect flight with Delta, departs from Portland on Fri, 27 Nov, arriving in Billings.Price includes taxes and charges.From $635, select.
Portland.$933 per passenger.Departing Wed, 22 Jul, returning Sun, 26 Jul.Return flight with Delta.Outbound indirect flight with Delta, departs from Billings on Wed, 22 Jul, arriving in Portland.Inbound indirect flight with Delta, departs from Portland on Sun, 26 Jul, arriving in Billings.Price includes taxes and charges.From $933, select.

Find the cheapest month to fly from Billings to Portland

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Billings to Portland flights are currently cheapest in August.
Jul
from $933
Aug
from $339
Sep
from $354
Oct
from $339
Nov
from $635
Dec
Find prices
Jan
from $468
Feb
Find prices
Mar
Find prices
Apr
Find prices
May
Find prices
Jun
Find prices

Direct flights from Billings to Portland

Billings to Portland: Alternative routes

Compare routes from Billings 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 $339
Search flights

Billings to Portland: Flight information

The things to know before you go.
Cheapest flight found$339
Cheapest month to flyAugust
Average flight time2 hrs, 5 mins
Most popular airlineAlaska Airlines
Average flights per week22

Finding cheap flights from Billings to Portland: Frequently asked questions

The best price we found for a return flight from Billings to Portland is $339. 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.
2 hours and 5 minutes is the average flight time from Billings to Portland.
Alaska Airlines, Horizon Air and British Airways fly direct from Billings to Portland.
As of July 2026, there are 22 flights per week flying from Billings to Portland.
The cheapest month to fly from Billings to Portland is usually August.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Billings Airport to Portland Airport on Wednesday, 19 August 2026.
Yes – the average flight time is 2 hours and 5 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, Delta offers the cheapest flight tickets to Portland.

Flying from Billings Airport (BIL) to Portland Airport (PDX): what you need to know

  • Book a direct flight from Billings Airport to Portland Airport and you'll be travelling for an average of 2 hours 5 minutes.

  • Portland is one hour behind Billings and is in the UTC-8 timezone.

  • Every week, there are six Billings Airport to Portland Airport flights. To be on board as early as possible, go for the 14:18 Alaska Airlines flight. If you'd rather make the most of your time before you fly, the last departure is at 15:47 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 can comfortably board your BIL to PDX flight.

  • You'll likely experience longer lines in popular months such as September. Arriving up to four hours in advance for an international flight and two hours for a domestic departure is a smart move.

  • Alaska Airlines is your gateway to exploring Portland (and perhaps some other exciting parts of the United States!). Check out the direct flights from Billings Airport to Portland Airport offered by this carrier.

  • Alaska Airlines is the airline with the highest passenger demand for this route.

  • Alaska Airlines tops the rankings as the most punctual carrier for BIL to PDX flights, with 85.47% of services arriving on schedule.

  • We make it easy to book a flight with a stopover. To see all your options for tickets from Billings Airport to Portland Airport, deselect 'Direct flights only.' Then, choose a flight offering a stop long enough to visit the city of your choice. Stopovers between BIL and PDX include:

    • Denver International Airport

    • Harry Reid International Airport

    • Salt Lake City Airport

How to find the cheapest flights from Billings Airport (BIL) to Portland Airport (PDX)

  • The cheapest price we've seen for a one-way Billings Airport to Portland Airport flight is $191. A round-trip ticket is currently $339. Depending on the availability and when you book, these fares could change.

  • Don't leave things to the last minute. You're more likely to get cheap tickets from BIL to PDX if you book early. Airlines often offer some excellent early bird deals.

  • The cheapest month for flights from Billings Airport to Portland Airport is May. Use the 'Whole month' tool to see the lowest airfares if you have flexible dates.

  • There's no need to check every day to find out if fares have gone down when you set up a Price Alert. We'll let you know as soon as there's a change in price on cheap flights from BIL to PDX.

  • Choose your ideal arrival and departure times, airlines and number of stops with the filters. Alternatively, sort your results by 'Cheapest' to get the best deals on flights from Billings Airport to Portland Airport.

Handy information about Billings Airport (BIL)

  • The address for BIL is 1901 Terminal Circle, Room 216.

  • Billings Airport has a strong on-time performance, reducing the likelihood of delays. Departures from BIL arrive on schedule 84% of the time.

  • Billings Airport is about 10 kilometres from central Billings. If you're driving, ride-sharing or catching a taxi from the centre, it'll take you 15 minutes or so to arrive, depending on the traffic.

  • The journey when using public transport usually takes 30 minutes.

  • Get your break off to a leisurely start by staying near BIL. Whether you've booked an early flight from Billings Airport to Portland Airport or just don't want to be rushed, these hotels are perfect:

Arriving at Portland Airport (PDX)

Getting from Portland Airport (PDX) to central Portland

  • PDX is located at 7000 NE Airport Way.

  • Portland Airport to the centre of Portland has a drive time of around 20 minutes. It's approximately 19 kilometres away.

  • Travelling to the centre on public transport typically takes 40 minutes.

When to fly to Portland Airport (PDX)

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

  • Before locking in your flight from Billings Airport to Portland Airport, consider the type of weather you enjoy. August is the warmest month in Portland, with the temperature ranging from 12ºC (54ºF) to 31ºC (88ºF).

  • Search for cheap tickets from BIL to PDX in January if you want to travel in cooler conditions. Temperatures are at their lowest around then, ranging between -2ºC (28ºF) and 10ºC (50ºF) on average.

Explore more of the United States

  • Portland has its own special appeal, but there are so many other parts of the United States just waiting to be explored. About 241 kilometres north of Portland, a visit to Seattle will keep you on the go. Don't miss top attractions like Space Needle, Pike Place Market and Seattle Skyline.

  • Spokane is another essential stop in the United States and is around 467 kilometres north-east of Portland. No journey is complete without dropping by Riverside State Park, Spokane Falls (Upper Falls) and Cathedral of Our Lady of Lourdes.

Plan smart, explore more

Where should Australians travel this year?

What are the cheapest days and weeks to fly?

5 best premium economy airlines worth paying for

How to search for multi-city flights with Skyscanner

Plan the rest of your trip from Billings to Portland

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