Cheap Flights from Missoula (MSO) to Portland (PDX)

Compare Missoula 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 Missoula to Portland

Looking for a cheap last-minute deal or the best return flight from Missoula to Portland? Find the lowest prices on one-way and return tickets right here.

Find the cheapest month to fly from Missoula to Portland

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Missoula to Portland flights are currently cheapest in September.

Direct flights from Missoula to Portland

Missoula to Portland: Alternative routes

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

Missoula to Portland: Flight information

The things to know before you go.
Cheapest flight found$241
Cheapest month to flySeptember
Average flight time1 hr, 37 mins
Most popular airlineHorizon Air
Average flights per week44

Finding cheap flights from Missoula to Portland: Frequently asked questions

The best price we found for a return flight from Missoula to Portland is $241. 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 37 minutes is the average flight time from Missoula to Portland.
Horizon Air, Alaska Airlines and Hawaiian Airlines fly direct from Missoula to Portland.
As of August 2025, there are 44 flights per week flying from Missoula to Portland.
The cheapest month to fly from Missoula to Portland is usually September.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Missoula Airport to Portland Airport on Saturday, 20 September 2025.
Yes – the average flight time is 1 hour and 37 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, Hawaiian Airlines offers the cheapest flight tickets to Portland.

Travelling from Missoula International Airport (MSO) to Portland International Airport (PDX): what you need to know

  • Portland's timezone is UTC-7, making Portland one hour behind Missoula.

  • Leave enough time to make your MSO to PDX flight. It's generally best to arrive two hours before international departures and an hour ahead for domestic flights.

  • Flying during a peak time like July? Public holidays and other popular periods can lead to longer queues and delays at airport checkpoints. Play things extra safe and get there up to four hours ahead of an international flight and two hours before domestic departures.

  • Alaska Airlines is your gateway to exploring Portland (and perhaps some other exciting corners of United States!). Browse the direct flights from Missoula International Airport to Portland International Airport offered by this carrier.

  • The airline most travellers fly with on this route is Alaska Airlines.

  • With a dependable 92.59% of services landing on schedule, Alaska Airlines is the most punctual carrier operating MSO to PDX flights.

  • Consider adding a stopover when booking your ticket from Missoula International Airport to Portland International Airport. Simply deselect 'Direct flights only' to break up your trip, or visit a new city along the way. Here's where you can stop between MSO and PDX:

    • Salt Lake City International Airport

    • Metropolitan Oakland International Airport

    • Denver International Airport

How to find the cheapest flights from Missoula International Airport (MSO) to Portland International Airport (PDX)

  • The lowest price we've seen for a one-way Missoula International Airport to Portland International Airport flight is $135. A return ticket is currently $241. Depending on the availability when you book, these fares could change.

  • To find cheap tickets from MSO to PDX, book in advance. Airlines usually offer their best fares when flights are first released.

  • Getting cheap flights from Missoula International Airport to Portland International Airport is easy if you can be flexible with your travel dates. Use the 'Whole month' search tool to see the best prices across the month and score a great deal.

  • Getting your hands on cheap flights from MSO to PDX is easy with Price Alerts. All you need to do is set up one of these automatic alerts and we'll let you know when a lower fare pops up.

  • Tailor your flights with filters. Select your departure and arrival times, airlines and total journey duration. You can also sort results by 'Best,' 'Fastest' or 'Cheapest' flights from Missoula International Airport to Portland International Airport.

Handy information about Missoula International Airport (MSO)

  • You'll find MSO at 5225 Highway 10 West.

  • Missoula International Airport scores top marks for on-time performance. 82.29% of flights that depart MSO land on time.

  • Missoula International Airport is about 11 kilometres from central Missoula. If you're catching a cab, ride-sharing or driving from the centre, it'll take 10 minutes or so to arrive, depending on the traffic.

  • The journey on public transport takes about 35 minutes.

  • Looking for a convenient hotel close to MSO? If you're boarding an early flight from Missoula International Airport to Portland International Airport, these stays will have you sleeping moments from your departure gate:

Arriving at Portland International Airport (PDX)

Getting from Portland International Airport (PDX) to central Portland

  • PDX is located at 7000 NE Airport Way.

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

  • Getting to the centre by public transport takes roughly 45 minutes.

When to fly to Portland International Airport (PDX)

  • It's time to plan your trip dates for your flight from Missoula International Airport to Portland International Airport. July is the busiest month to head to Portland. If you like a more laid-back vibe, go in May.

  • When booking your flight from Missoula International Airport to Portland International 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).

  • December has average temperatures of between 0ºC (32ºF) and 9ºC (48ºF). Search for cheap tickets from MSO to PDX sometime around then if you'd rather travel in cooler conditions.

Explore more of United States

  • Portland has loads to offer, but there are so many other corners of United States waiting to be discovered. About 241 kilometres north of Portland, a visit to Seattle will keep you on the move. Don't miss top attractions like Greyhound: Bus Station, LMN Architects and Boeing Radiation Effects Lab.

  • If you're interested in discovering another side of United States, consider Spokane, about 467 kilometres north-east of Portland. Manito Park, Northwest Museum of Arts & Culture and Spokane Falls are the start of reasons to visit.

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