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Cheap Flights from Portland to Billings

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Flight deals from Portland to Billings

Looking for a cheap last-minute deal or the best return flight from Portland Airport to Billings Airport? If you want to travel next month, return fares start from $433. Find the lowest prices on one-way and return tickets right here.
Billings.$433 per passenger.Departing Wed, 19 Aug, returning Wed, 26 Aug.Return flight with Delta.Outbound indirect flight with Delta, departs from Portland on Wed, 19 Aug, arriving in Billings.Inbound indirect flight with Delta, departs from Billings on Wed, 26 Aug, arriving in Portland.Price includes taxes and charges.From $433, select.
Billings.$450 per passenger.Departing Wed, 2 Sep, returning Sun, 6 Sep.Return flight with Delta.Outbound indirect flight with Delta, departs from Portland on Wed, 2 Sep, arriving in Billings.Inbound indirect flight with Delta, departs from Billings on Sun, 6 Sep, arriving in Portland.Price includes taxes and charges.From $450, select.
Billings.$467 per passenger.Departing Mon, 12 Oct, returning Fri, 16 Oct.Return flight with Delta.Outbound indirect flight with Delta, departs from Portland on Mon, 12 Oct, arriving in Billings.Inbound indirect flight with Delta, departs from Billings on Fri, 16 Oct, arriving in Portland.Price includes taxes and charges.From $467, select.
Billings.$468 per passenger.Departing Mon, 9 Nov, returning Fri, 13 Nov.Return flight with Delta.Outbound indirect flight with Delta, departs from Portland on Mon, 9 Nov, arriving in Billings.Inbound indirect flight with Delta, departs from Billings on Fri, 13 Nov, arriving in Portland.Price includes taxes and charges.From $468, select.
Billings.$520 per passenger.Departing Thu, 1 Oct, returning Tue, 5 Jan.Return flight with Delta.Outbound indirect flight with Delta, departs from Portland on Thu, 1 Oct, arriving in Billings.Inbound indirect flight with Delta, departs from Billings on Tue, 5 Jan, arriving in Portland.Price includes taxes and charges.From $520, select.
Billings.$845 per passenger.Departing Sun, 30 Aug, returning Sun, 13 Sep.Return flight with Delta.Outbound indirect flight with Delta, departs from Portland on Sun, 30 Aug, arriving in Billings.Inbound indirect flight with Delta, departs from Billings on Sun, 13 Sep, arriving in Portland.Price includes taxes and charges.From $845, select.
Billings.$878 per passenger.Departing Wed, 22 Jul, returning Sat, 25 Jul.Return flight with United.Outbound indirect flight with United, departs from Portland on Wed, 22 Jul, arriving in Billings.Inbound indirect flight with United, departs from Billings on Sat, 25 Jul, arriving in Portland.Price includes taxes and charges.From $878, select.

Find the cheapest month to fly from Portland to Billings

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Portland to Billings flights are currently cheapest in August.
Jul
from $878
Aug
from $433
Sep
from $450
Oct
from $467
Nov
from $468
Dec
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Jan
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Feb
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Mar
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Apr
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Direct flights from Portland to Billings

Portland to Billings: Alternative routes

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

Billings

5km from central Billings
ClosestCheapest
from $433
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Portland to Billings: Flight information

The things to know before you go.
Cheapest flight found$433
Cheapest month to flyAugust
Average flight time1 hr, 52 mins
Most popular airlineHorizon Air
Average flights per week16

Finding cheap flights from Portland to Billings: Frequently asked questions

The best price we found for a return flight from Portland to Billings is $433. 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 52 minutes is the average flight time from Portland to Billings.
Horizon Air and Alaska Airlines fly direct from Portland to Billings.
As of July 2026, there are 16 flights per week flying from Portland to Billings.
The cheapest month to fly from Portland to Billings is usually August.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Portland Airport to Billings Airport on Wednesday, 19 August 2026.
Yes – the average flight time is 1 hour and 52 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 Billings 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 Billings is around 40 days in advance, so don’t leave your flight to the last minute.

Currently, Delta offers the cheapest flight tickets to Billings.

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

  • Hop on a direct flight from Portland Airport to Billings Airport and you'll be in the air for an average of 1 hour 50 minutes.

  • Take your pick of six weekly Portland Airport to Billings Airport flights. The 10:30 departure with Alaska Airlines is the earliest available. Alaska Airlines operates the latest service of the day at 12:15.

  • For a smooth journey, arrive at the airport two hours ahead of international flights and an hour before domestic departures. This ensures you have enough time to board your PDX to BIL flight.

  • Flying during a peak time such as July? School holidays and other high seasons can lead to longer lines at airport checkpoints. Be extra cautious and get there up to four hours before international flights and two hours before domestic departures.

  • Alaska Airlines has direct flights from Portland Airport to Billings Airport. Book with this popular airline, then get ready to see the sights in Billings — and maybe even more of the United States if time allows.

  • The airline with the highest number of bookings on this route is Alaska Airlines.

  • Alaska Airlines is the most punctual carrier offering PDX to BIL flights. An impressive 88.33% of its services on this route arrive as planned.

  • If you'd like to include a stop along the way, just deselect 'Direct flights only' when searching for your ticket from Portland Airport to Billings Airport. These are the top stopovers between PDX and BIL:

    • Denver International Airport

    • Los Angeles International Airport

    • Phoenix Sky Harbour Airport

Handy information about Portland Airport (PDX)

  • You'll find PDX at 7000 NE Airport Way.

  • Portland Airport has an excellent on-time record, making delays less likely. Departures from PDX land at their destination as scheduled 83% of the time.

  • To get to Portland Airport from central Portland, it takes about 20 minutes if you're planning to drive. This depends on traffic though. It's approximately 19 kilometres from the airport to the city centre.

  • Planning to take public transport? Expect a trip time of around 40 minutes.

  • Looking for a convenient hotel close to PDX? If you're catching an early flight from Portland Airport to Billings Airport, these stays will have you sleeping moments from check-in:

Arriving at Billings Airport (BIL)

  • Reserve a hotel near BIL if you have a late Portland Airport to Billings Airport flight. Check in to one of these accommodation options and avoid the hassle of a long transfer:

  • Begin your adventure by picking up a Billings Airport rental car. Grab your wheels from Alamo, Budget or Rent a Wreck to explore Billings and beyond.

  • Book your vehicle from Billings Airport several weeks before your trip to secure the best deal. If you're planning to travel during a peak period, it's smart to book even earlier.

Getting from Billings Airport (BIL) to central Billings

  • You'll find BIL at 1901 Terminal Circle, Room 216.

  • Billings Airport is approximately 10 kilometres from the centre of Billings. The drive time takes about 15 minutes.

  • If you're travelling on public transport, expect a journey of roughly 30 minutes.

When to fly to Billings Airport (BIL)

  • It's time to plan your dates for your flight from Portland Airport to Billings Airport. September is the busiest month to head to Billings. If you want a quieter vibe, go in March.

  • When reserving your flight from Portland Airport to Billings Airport, consider the type of weather you enjoy. July is the warmest month in Billings, with the temperature ranging from 13ºC to 34ºC.

  • Search for cheap tickets from PDX to BIL in February if you'd rather travel during cooler conditions. Temperatures are at their lowest then, ranging between -18ºC and 8ºC on average.

Explore more of the United States

  • Billings has plenty to offer, but there are so many other parts of the United States waiting to be explored. Around 451 kilometres south-east of Billings, a visit to Rapid City will keep your itinerary packed. Start with leading attractions like Dinosaur Park, President Abraham Lincoln Statue and Lakota Dream Museum and Monument.

  • If you want to check out another side of the United States, head for Missoula, about 434 kilometres west of Billings. Mt Jumbo, Lolo Natioal Forest and Missoula Art Museum are highlights.

Plan the rest of your trip from Portland to Billings

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