$134 Cheap Flights from Missoula (MSO) to Philadelphia (PHL)

View $134 flight on Wed, Jan 21, 2026Opens in a new window

Popular airlines from Missoula Intl. Airport (MSO) to Philadelphia Intl. Airport (PHL)

Cheap Flights from Missoula to Philadelphia (MSO-PHL)

Prices were available within the past 7 days and start at $134 for one-way flights and $267 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Wed, Jan 21 - Tue, Feb 3
MSO
Missoula
PHL
Philadelphia
$267 Roundtrip, found 6 days ago
$267
Roundtrip
found 6 days ago
Select American Airlines flight, departing Wed, Jan 21 from Missoula to Philadelphia, returning Tue, Feb 3, priced at $267 found 6 days ago
Delta
Wed, Jan 21 - Mon, Feb 2
MSO
Missoula
PHL
Philadelphia
$267 Roundtrip, found 6 days ago
$267
Roundtrip
found 6 days ago
Select Delta flight, departing Wed, Jan 21 from Missoula to Philadelphia, returning Mon, Feb 2, priced at $267 found 6 days ago
United
Wed, Jan 21 - Tue, Feb 3
MSO
Missoula
PHL
Philadelphia
$267 Roundtrip, found 6 days ago
$267
Roundtrip
found 6 days ago
Select United flight, departing Wed, Jan 21 from Missoula to Philadelphia, returning Tue, Feb 3, priced at $267 found 6 days ago
Delta
Wed, Jan 21 - Sun, Feb 1
MSO
Missoula
PHL
Philadelphia
$267 Roundtrip, found 6 days ago
$267
Roundtrip
found 6 days ago
Select Delta flight, departing Wed, Jan 21 from Missoula to Philadelphia, returning Sun, Feb 1, priced at $267 found 6 days ago
Delta
Mon, Jan 26 - Mon, Feb 9
MSO
Missoula
PHL
Philadelphia
$272 Roundtrip, found 6 days ago
$272
Roundtrip
found 6 days ago
Select Delta flight, departing Mon, Jan 26 from Missoula to Philadelphia, returning Mon, Feb 9, priced at $272 found 6 days ago
Delta
Fri, Jan 9 - Sun, Jan 25
MSO
Missoula
PHL
Philadelphia
$273 Roundtrip, found 6 days ago
$273
Roundtrip
found 6 days ago
Select Delta flight, departing Fri, Jan 9 from Missoula to Philadelphia, returning Sun, Jan 25, priced at $273 found 6 days ago
Delta
Tue, Feb 10 - Wed, Feb 25
MSO
Missoula
PHL
Philadelphia
$277 Roundtrip, found 6 days ago
$277
Roundtrip
found 6 days ago
Select Delta flight, departing Tue, Feb 10 from Missoula to Philadelphia, returning Wed, Feb 25, priced at $277 found 6 days ago
United
Wed, Jan 21 - Tue, Feb 3
MSO
Missoula
PHL
Philadelphia
$297 Roundtrip, found 6 days ago
$297
Roundtrip
found 6 days ago
Select United flight, departing Wed, Jan 21 from Missoula to Philadelphia, returning Tue, Feb 3, priced at $297 found 6 days ago
Alaska Airlines
Wed, Jan 21 - Tue, Feb 3
MSO
Missoula
PHL
Philadelphia
$314 Roundtrip, found 6 days ago
$314
Roundtrip
found 6 days ago
Select Alaska Airlines flight, departing Wed, Jan 21 from Missoula to Philadelphia, returning Tue, Feb 3, priced at $314 found 6 days ago
Hawaiian Airlines
Wed, Dec 3 - Tue, Dec 16
MSO
Missoula
PHL
Philadelphia
$361 Roundtrip, found 2 days ago
$361
Roundtrip
found 2 days ago
Select Hawaiian Airlines flight, departing Wed, Dec 3 from Missoula to Philadelphia, returning Tue, Dec 16, priced at $361 found 2 days ago

Find the cheapest month to fly from Missoula (MSO) to Philadelphia (PHL)

June is typically the cheapest month to fly

From $272 - $778 per traveler.

Alternative airports near Philadelphia

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Philadelphia Intl. PHL. Cheapest and Closest option available. Average driving time to city center is 17 minutes. Flights from $446
PHL
Philadelphia Intl.
CheapestClosest
Average driving time to city center17 min
Flights from $446

Frequently asked questions

How much does a flight from Missoula Intl. Airport (MSO) to Philadelphia Intl. Airport (PHL) cost?
Lock in a cheap one-way flight from $134 or cheap return flight from $267 from Missoula Intl. Airport (MSO) to Philadelphia Intl. Airport (PHL) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight offers on this route.
What is the cheapest month to fly from Missoula Intl. Airport (MSO) to Philadelphia Intl. Airport (PHL)?
The cheapest month to fly from MSO to PHL is January, when there's less demand. Off-peak season is generally when airlines offer better prices between these airports.
What is the cheapest airline that flies from Missoula Intl. Airport (MSO) to Philadelphia Intl. Airport (PHL)?
To find the cheapest airline that'll fly you from MSO to PHL, use Expedia's filter tool. Customize your search based on your travel style, such as preferred carriers and flight duration. You can then sort your results by "Price (lowest to highest)" to see the cheapest fares upfront.
How many flights per day from Missoula Intl. Airport (MSO) to Philadelphia Intl. Airport (PHL)?
There are no daily direct flights from Missoula Intl. Airport (MSO) to Philadelphia Intl. Airport (PHL). But you can book flights with layovers. Filter your search on Expedia to include one or more stops, and you'll be soaring above the clouds before you know it.
What day of the week has the most flights from MSO to PHL?
Friday is typically the busiest day for flights, while Tuesday tends to be the quietest.* Remember that flight schedules can vary based on a number of factors, such as the airline and season.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Missoula Intl. Airport (MSO) to Philadelphia Intl. Airport (PHL)?
Book a flight from Missoula Intl. Airport (MSO) to Philadelphia Intl. Airport (PHL) that takes off before 3 PM to reduce the likelihood of delays and cancellations. Departures after this time are on average 22% more likely to be canceled.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Missoula Intl. Airport (MSO) to Philadelphia Intl. Airport (PHL) last-minute?
Booking your plane ticket from MSO to PHL just before your trip is generally more expensive. But if there's some wiggle room with your travel times and dates, you could bag a cheap last-minute fare.
Is it cheaper to book a MSO to PHL flight and hotel package?
Compared with arranging flights and hotels separately, booking a MSO to PHL flight and hotel package with Expedia could result in significant savings. What's more, having everything in one place will take the stress out of planning your trip. Simply pick your flights and choose from our extensive range of stays, then customize your trip with extras like activities and car rentals.
Can I cancel or change the date of my flight from Missoula Intl. Airport (MSO) to Philadelphia Intl. Airport (PHL)?
If you booked your MSO to PHL flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of fare you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, visit our Customer Service portal for further details.

Travel information

Origin airport
Missoula Intl.
Destination airport
Philadelphia Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, Hawaiian Airlines, United
Roundtrip price
$266
Distance
1987 mi

Book with confidence

Missoula to Philadelphia Flights

The cheapest times to fly from Missoula to Philadelphia

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Missoula to Philadelphia are during the month of January. You can find some of the cheapest flights from Missoula to Philadelphia with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Missoula to Philadelphia

Sunday is one of the best days to book for cheap flights from Missoula to Philadelphia: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Missoula to Philadelphia

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Missoula to Philadelphia in 2025. You can also book with separate airlines for your outbound and return journeys, from $134 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Missoula to Philadelphia flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Missoula to Philadelphia airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Missoula to Philadelphia Flights

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*Available to One Key members.