Cheap flights from Missoula to Portland from $139

The cheapest month to fly to Portland from Missoula is in November. Flight prices, which tend to average around $238, are often lower during this time because this is during the off-season. If you don’t want to visit Portland in November, then you should wait until September to fly from Missoula, when ticket prices are also cheap, with an average price of $238.

The cheapest day to depart on your flight to Portland is on a Wednesday when prices can be found for as low as $383. This is often the case because there is less demand to fly during this day of the week. The most expensive day to fly to Portland is Sunday, with ticket prices averaging around $436.

The cheapest time of day to fly to Portland is in the afternoon when flights can be purchased for as low as $373. In the morning is when there is more demand to fly to Portland, so prices are often more expensive at around $446 per ticket.

Fly from Missoula Johnson-Bell Field to Portland for the best Missoula Johnson-Bell Field - Portland flight prices

There are 3 cabin classes available to choose from on Missoula to Portland flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

You could potentially save up to 10% on your flight if you consider stops on a Missoula to Portland flight.

Delta and Alaska Airlines are the most popular carriers operating from Missoula Johnson-Bell Field to Portland

Alaska Airlines, Delta and Hawaiian Airlines are the top three most popular airlines that fly to Portland from Missoula according to our data. Alaska Airlines is the first choice among our users, with 82% of people opting to fly with this airline when traveling to Portland. Keep in mind that there are 3 different airlines that fly to Portland on a routine basis, so you have a few additional options to choose from.

Salt Lake City (SLC) was the most common stop: 50% of momondo users choosing 1-stop flights on this route connected there.

Flights via Salt Lake City (SLC) offer the lowest average round-trip price of $164.

Flights connecting via Salt Lake City (SLC) have the shortest average one-way travel time: 4h 51m.

Salt Lake City (SLC) has the shortest average layover time for this route: 1h 49m.

1 flights are operational daily from Missoula to Portland as of June 2026. The most popular departure time for this route is 5:00PM, with 100% of flights per day taking off in the afternoon.

The number of flights available between Missoula and Portland is 7 per week as of June 2026. The most frequent departure day is Mon, with 14% of weekly flights leaving on this day.