Cheap flights from Portland to Missoula (PWM - MSO) from $595

Departing on a Tuesday is a good option for securing a great price. You can expect to save up to 59% when planning your travel around this day of the week.

One of the essential ways to save on airfare from Portland, Maine to Missoula is to remain as flexible as possible. Flights that are at noon tend to be the most expensive. A flight in the morning could potentially save you up to 5% on airfare.

Some of the carriers operating flights from Portland to Missoula Johnson-Bell Field that may be offering flexible cancellation policies are American Airlines and United Airlines. Our site will let you filter for all airlines offering greater flexibility due to COVID-19.

Yes, there are multiple flights from Portland, Maine to Missoula for under $600. The cheapest flight booked recently is on American Airlines for just $595, but on average you can expect to pay $714.

While on average a flight from Portland, Maine to Missoula is generally $902, our data shows the cheapest flight currently is $423. When looking at the most popular route, (Portland - Missoula Johnson-Bell Field), you can expect to pay $691 for that flight.

These are just IATA (International Air Transport Association) codes. They are used in aviation to identify and differentiate airports. That’s why a Portland Airport to Missoula Johnson-Bell Field Airport flight would often be abbreviated as a PWM to MSO flight.