Cheap flights from Billings to Portland

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Compare Billings to Portland flight deals

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

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Flight deals from Billings to Portland

Looking for a cheap last-minute deal or the best round-trip flight from Billings Airport to Portland Airport? If you want to travel next month, round-trip fares start from $261. Find the lowest prices on one-way and round-trip tickets right here.

Portland.$228 per passenger.Departing Tue, Oct 27, returning Sat, Oct 31.Round-trip flight with Alaska Airlines.Outbound direct flight with Alaska Airlines departing from Billings on Tue, Oct 27, arriving in Portland.Inbound direct flight with Alaska Airlines departing from Portland on Sat, Oct 31, arriving in Billings.Price includes taxes and charges.From $228, select.

Portland.$235 per passenger.Departing Sun, Nov 1, returning Sat, Nov 7.Round-trip flight with Alaska Airlines.Outbound direct flight with Alaska Airlines departing from Billings on Sun, Nov 1, arriving in Portland.Inbound direct flight with Alaska Airlines departing from Portland on Sat, Nov 7, arriving in Billings.Price includes taxes and charges.From $235, select.

Portland.$261 per passenger.Departing Sun, Sep 20, returning Sat, Sep 26.Round-trip flight with Delta.Outbound indirect flight with Delta, departing from Billings on Sun, Sep 20, arriving in Portland.Inbound indirect flight with Delta, departing from Portland on Sat, Sep 26, arriving in Billings.Price includes taxes and charges.From $261, select.

Portland.$316 per passenger.Departing Wed, Feb 17, returning Wed, Feb 24.Round-trip flight with Delta.Outbound indirect flight with Delta, departing from Billings on Wed, Feb 17, arriving in Portland.Inbound indirect flight with Delta, departing from Portland on Wed, Feb 24, arriving in Billings.Price includes taxes and charges.From $316, select.

Portland.$322 per passenger.Departing Mon, Feb 15, returning Mon, Feb 22.Round-trip flight with Alaska Airlines.Outbound direct flight with Alaska Airlines departing from Billings on Mon, Feb 15, arriving in Portland.Inbound direct flight with Alaska Airlines departing from Portland on Mon, Feb 22, arriving in Billings.Price includes taxes and charges.From $322, select.

Portland.$346 per passenger.Departing Wed, Sep 30, returning Mon, Oct 5.Round-trip flight with Alaska Airlines.Outbound indirect flight with Alaska Airlines, departing from Billings on Wed, Sep 30, arriving in Portland.Inbound indirect flight with Alaska Airlines, departing from Portland on Mon, Oct 5, arriving in Billings.Price includes taxes and charges.From $346, select.

Portland.$423 per passenger.Departing Fri, Sep 4, returning Sun, Sep 6.Round-trip flight with Alaska Airlines.Outbound direct flight with Alaska Airlines departing from Billings on Fri, Sep 4, arriving in Portland.Inbound direct flight with Alaska Airlines departing from Portland on Sun, Sep 6, arriving in Billings.Price includes taxes and charges.From $423, select.

Portland.$516 per passenger.Departing Mon, Aug 31, returning Sun, Sep 6.Round-trip flight with Delta.Outbound indirect flight with Delta, departing from Billings on Mon, Aug 31, arriving in Portland.Inbound indirect flight with Delta, departing from Portland on Sun, Sep 6, arriving in Billings.Price includes taxes and charges.From $516, select.

Portland.$568 per passenger.Departing Mon, Aug 31, returning Sun, Sep 6.Round-trip flight with Alaska Airlines.Outbound direct flight with Alaska Airlines departing from Billings on Mon, Aug 31, arriving in Portland.Inbound direct flight with Alaska Airlines departing from Portland on Sun, Sep 6, arriving in Billings.Price includes taxes and charges.From $568, 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 October.

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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 $228

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Billings to Portland: Flight information

The things to know before you go.

Cheapest flight found	$228
Cheapest month to fly	October
Average flight time	2 hrs, 10 mins
Most popular airline	Alaska Airlines
Average flights per week	16

Finding cheap flights from Billings to Portland: Frequently asked questions

How much are round-trip flights from Billings to Portland?

The best price we found for a round-trip flight from Billings to Portland is $228. 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 Billings to Portland?

2 hours and 10 minutes is the average flight time from Billings to Portland.

Which airlines fly direct from Billings to Portland?

Alaska Airlines and British Airways fly direct from Billings to Portland.

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

There are 16 flights per week flying from Billings to Portland, as of August 2026.

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

The cheapest month to fly from Billings to Portland is usually October.

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

After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Billings Airport to Portland Airport on Tuesday, October 27, 2026.

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

Yes – the average flight time is 2 hours and 10 minutes.

How can I find the best flight deal to Portland?

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.

When is the best time to book flights to Portland?

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.

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

Currently, Alaska Airlines 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 traveling 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 $133. A round-trip ticket is currently $228. 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 kilometers from central Billings. If you're driving, ride-sharing or catching a cab from the center, 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)

If you're coming in on a late Billings Airport to Portland Airport flight, few things top the convenience of staying near the terminal. Pick up your bags from the carousel and then be showered and resting shortly after at one of these hotels near PDX:
Travel at your own pace with a Portland Airport rental car. Pick up a set of wheels from Thrifty, Budget or Hertz and discover more of Portland and beyond.
Lock in the best rate by booking your ride from Portland Airport about one week ahead of your trip.

Getting from Portland Airport (PDX) to central Portland

PDX is located at 7000 NE Airport Way.
Portland Airport to the center of Portland has a drive time of around 20 minutes. It's approximately 19 kilometers away.
Traveling to the center 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 kilometers 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 kilometers 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.