Cheap flights from Philadelphia International to Missoula

Compare Philadelphia International to Missoula flight deals

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

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Flight deals from Philadelphia International to Missoula

Looking for a cheap last-minute deal or the best round-trip flight from Philadelphia International Airport to Missoula Airport? If you want to travel next month, round-trip fares start from $375. Find the lowest prices on one-way and round-trip tickets right here.

Missoula.$368 per passenger.Departing Fri, Aug 21, returning Mon, Aug 24.Round-trip flight with Delta.Outbound indirect flight with Delta, departing from Philadelphia International on Fri, Aug 21, arriving in Missoula.Inbound indirect flight with Delta, departing from Missoula on Mon, Aug 24, arriving in Philadelphia International.Price includes taxes and charges.From $368, select.

Missoula.$372 per passenger.Departing Sat, Sep 12, returning Sun, Sep 20.Round-trip flight with Delta.Outbound indirect flight with Delta, departing from Philadelphia International on Sat, Sep 12, arriving in Missoula.Inbound indirect flight with Delta, departing from Missoula on Sun, Sep 20, arriving in Philadelphia International.Price includes taxes and charges.From $372, select.

Missoula.$375 per passenger.Departing Fri, Jun 5, returning Thu, Jun 11.Round-trip flight with Delta.Outbound indirect flight with Delta, departing from Philadelphia International on Fri, Jun 5, arriving in Missoula.Inbound indirect flight with Delta, departing from Missoula on Thu, Jun 11, arriving in Philadelphia International.Price includes taxes and charges.From $375, select.

Missoula.$377 per passenger.Departing Fri, Aug 28, returning Fri, Sep 4.Round-trip flight with Delta.Outbound indirect flight with Delta, departing from Philadelphia International on Fri, Aug 28, arriving in Missoula.Inbound indirect flight with Delta, departing from Missoula on Fri, Sep 4, arriving in Philadelphia International.Price includes taxes and charges.From $377, select.

Missoula.$517 per passenger.Departing Wed, Jul 1, returning Sun, Jul 5.Round-trip flight with Frontier Airlines and Allegiant Air.Outbound indirect flight with Frontier Airlines, departing from Philadelphia International on Wed, Jul 1, arriving in Missoula.Inbound indirect flight with Allegiant Air, departing from Missoula on Sun, Jul 5, arriving in Philadelphia International.Price includes taxes and charges.From $517, select.

Missoula.$526 per passenger.Departing Sun, May 17, returning Thu, May 21.Round-trip flight with United.Outbound indirect flight with United, departing from Philadelphia International on Sun, May 17, arriving in Missoula.Inbound indirect flight with United, departing from Missoula on Thu, May 21, arriving in Philadelphia International.Price includes taxes and charges.From $526, select.

Missoula.$538 per passenger.Departing Thu, Jul 23, returning Sun, Aug 2.Round-trip flight with Frontier Airlines and Allegiant Air.Outbound indirect flight with Frontier Airlines, departing from Philadelphia International on Thu, Jul 23, arriving in Missoula.Inbound indirect flight with Allegiant Air, departing from Missoula on Sun, Aug 2, arriving in Philadelphia International.Price includes taxes and charges.From $538, select.

Missoula.$554 per passenger.Departing Fri, Jun 5, returning Thu, Jul 9.Round-trip flight with Frontier Airlines and Allegiant Air.Outbound indirect flight with Frontier Airlines, departing from Philadelphia International on Fri, Jun 5, arriving in Missoula.Inbound indirect flight with Allegiant Air, departing from Missoula on Thu, Jul 9, arriving in Philadelphia International.Price includes taxes and charges.From $554, select.

Find the cheapest month to fly from Philadelphia International to Missoula

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

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Philadelphia International to Missoula: Alternative routes

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

Missoula

8km from central Missoula

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from $368

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Philadelphia to Missoula: Flight information

The things to know before you go.

Cheapest flight found	$368
Cheapest month to fly	August

Finding cheap flights from Philadelphia International to Missoula: Frequently asked questions

How much are round-trip flights from Philadelphia International to Missoula?

The best price we found for a round-trip flight from Philadelphia International to Missoula is $368. 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.

Which airlines fly direct from Philadelphia International to Missoula?

Currently, there are no airlines that fly direct from Philadelphia International to Missoula. But we found flights with one or more stops from $368.

How many flights are there a week from Philadelphia International to Missoula?

There are no flights flying from Philadelphia International to Missoula, as of May 2026.

When is the cheapest time to fly from Philadelphia International to Missoula?

The cheapest month to fly from Philadelphia International to Missoula is usually August.

Which upcoming date is cheapest to fly from Philadelphia International Airport to Missoula Airport on?

After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Philadelphia International Airport to Missoula Airport on Friday, August 21, 2026.

Can I get a direct flight from Philadelphia International Airport to Missoula Airport?

No airlines currently offer direct flights between Philadelphia International Airport and Missoula Airport. Most routes have one or more stops.

How can I find the best flight deal to Missoula?

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 Missoula 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 Missoula?

We crunched all the numbers in our flight calendar, and it looks like the cheapest time to book a flight to Missoula 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 Philadelphia International Airport to Missoula?

Currently, Delta offers the cheapest flight tickets to Missoula.

Traveling from Philadelphia International Airport (PHL) to Missoula International Airport (MSO): what you need to know

Your PHL to MSO flight won't wait if you're late, so get to the airport on time. Arrive up to one hour in advance for domestic flights and two hours ahead when you're traveling internationally.
Flying during a peak time like August? School holidays and other popular seasons can lead to longer queues and delays at security. Play it safe and arrive up to four hours ahead of international flights and two hours before a domestic departure.
If you'd like to break up your flight, simply uncheck 'Direct flights only' when searching for your ticket from Philadelphia International Airport to Missoula International Airport. Here are the most popular stopovers between PHL and MSO:
- Minneapolis-St. Paul International Airport
- Denver International Airport
- O'Hare International Airport

How to find the cheapest flights from Philadelphia International Airport (PHL) to Missoula International Airport (MSO)

Right now, $183 is the cheapest price we've found for a one-way Philadelphia International Airport to Missoula International Airport flight. The best price for a return plane ticket is $368. Bear in mind that fares can change due to demand at the time of booking.
It's usually smart to book as early as possible if you're looking for cheap tickets from PHL to MSO. That's because airlines adjust prices based on demand, which tends to rise closer to departure.
Getting cheap flights from Philadelphia International Airport to Missoula International Airport is more likely if you're flexible with your trip dates. Use the 'Whole month' search tool to see the best prices across every month and snap up a great deal.
You don't need to check every day to see if fares have dropped when you create a Price Alert. We'll send you an update as soon as the price changes on cheap flights from PHL to MSO.
Secure the ideal flight for you by using the filters. To see the 'Fastest,' 'Best' or 'Cheapest' flights from Philadelphia International Airport to Missoula International Airport, use the 'Sort by' tool. You can also filter results by arrival and departure times, airline, and number of stops.

Handy information about Philadelphia International Airport (PHL)

PHL is located at Industrial Highway and Island Road.
78.93% of flights that take off from Philadelphia International Airport reach their destination on time.
To reach Philadelphia International Airport from central Philadelphia, it takes about 15 minutes if you're traveling by car. Of course, this depends on traffic conditions. It's approximately 19 kilometers from the airport to the city center.
Expect a journey time of around 45 minutes on public transport.
Booked an early flight from Philadelphia International Airport to Missoula International Airport? Avoid the stress of rushing to the terminal (and catch some extra z's) by choosing one of these stays close to PHL:

Arriving at Missoula International Airport (MSO)

Consider booking a hotel close to MSO if you're on a late Philadelphia International Airport to Missoula International Airport flight. Pick one of these accommodation options and make your arrival easier:
Grab a Missoula International Airport rental car and explore Missoula and beyond with your own wheels. Budget, Dollar and Hertz are well-known companies you can book with here.
Give yourself a better shot at snagging a great deal by booking as soon as possible. Reserving your vehicle from Missoula International Airport at least a couple of weeks ahead is a smart move.

Getting from Missoula International Airport (MSO) to central Missoula

MSO is located at 5225 Highway 10 West.
From Missoula International Airport, Missoula is approximately 11 kilometers away. It takes around 10 minutes to reach the center driving.
Getting to the center by public transport takes around 35 minutes.

When to fly to Missoula International Airport (MSO)

July is the most popular month for flights from Philadelphia International Airport to Missoula International Airport. For a quieter experience, travel to Missoula in February.
When reserving your flight from Philadelphia International Airport to Missoula International Airport, think about the type of weather you enjoy. July is the warmest month in Missoula, with temperatures ranging from 8ºC (46ºF) to 33ºC (91ºF).
December sees average temperatures of between -15ºC (5ºF) and 3ºC (37ºF). Search for cheap tickets from PHL to MSO around that time if you want to travel in cooler conditions.

Explore more of United States

Missoula has its own special appeal, but there are so many other corners of United States waiting to be discovered. About 274 kilometers west of Missoula, a trip to Spokane will keep you busy. Start with leading sights like Manito Park, Northwest Museum of Arts & Culture and Spokane Falls.
If you're looking to explore another well-known destination in United States, head for Boise, roughly 402 kilometers south-west of Missoula. Idaho State Capitol Building, Old Idaho Penitentiary and Zoo Boise are key reasons to visit.