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$171+ Cheap flights from Philadelphia to Missoula (PHL - MSO)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/15. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — MSO
Aug 19 — Aug 261
Tue 8/19
Tue 8/26
1 adult, Economy
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Cheapflights Tip: The best prices from Philadelphia to Missoula Johnson-Bell Field are usually found in January or February, booked 23 days in advance, depart on a Tuesday or Wednesday and return on a Wednesday

Cheap flight deals from Philadelphia to Missoula

Discover tips and strategies to find the most affordable flight options for your journey from Philadelphia (PHL) to Missoula (MSO). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated August 14, 2025.

Round-trip from

$341
(American Airlines)

One-way from

$171
(American Airlines)

Popular in

December

Cheapest in

January

Average price

$467
From Philadelphia to Missoula Johnson-Bell Field
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One-way flight from Philadelphia to Missoula Johnson-Bell Field
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Highest demand for flights based on searches. 15% potential increase in price ($106 potential increase over avg. RT price).
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Cheapest flight prices on average. 7% potential price decrease ($39 potential savings vs. average RT price).
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Average for round-trip flights in August 2025
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Find flight deals from Philadelphia to Missoula

Cheapest flights from Philadelphia to Missoula
Explore the most affordable flight options available from Philadelphia to Missoula. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 14, 2025.

This American Airlines deal was found by Cheapflights users on 8/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/244:00 pmPHL - MSO
1 stop9h 18mAmerican Airlines
Tue 9/301:51 pmMSO - PHL
1 stop9h 34mAmerican Airlines
Deal found 8/14$341
This Delta deal was found by Cheapflights users on 8/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/2412:17 pmPHL - MSO
2 stops13h 29mDelta
Tue 9/306:20 pmMSO - PHL
2 stops13h 05mDelta
Deal found 8/14$351
This American Airlines deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/234:00 pmPHL - MSO
1 stop9h 18mAmerican Airlines
Mon 9/291:51 pmMSO - PHL
1 stop9h 19mAmerican Airlines
Deal found 8/13$366
This Delta deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/86:59 pmPHL - MSO
1 stop6h 50mDelta
Sat 9/135:45 amMSO - PHL
1 stop6h 15mDelta
Deal found 8/13$391
This United Airlines deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/810:30 amPHL - MSO
2 stops12h 52mUnited Airlines
Sat 9/136:30 amMSO - PHL
2 stops8h 51mUnited Airlines
Deal found 8/13$401
This American Airlines deal was found by Cheapflights users on 8/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/136:42 amPHL - MSO
1 stop8h 18mAmerican Airlines
Sat 9/201:51 pmMSO - PHL
1 stop7h 53mAmerican Airlines
Deal found 8/14$441
This Hawaiian Airlines deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/247:22 amPHL - MSO
1 stop9h 56mHawaiian Airlines
Thu 10/96:40 pmMSO - PHL
1 stop9h 00mHawaiian Airlines
Deal found 8/13$459

Cheapflights Fare Finder

 
Customize your flight search to find flights from Philadelphia to Missoula that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated August 14, 2025.
Use the filters below to find and compare flights from Philadelphia to Missoula that are best for you.

Fly from

Philadelphia

Fly to

Missoula

Route

Depart

Return

Price

PhiladelphiaMissoula

PHL - MSO

PHLMSO

Philadelphia

Wed 9/24

4:00 pm-11:18 pm

1 stop9h 18m

Missoula Johnson-Bell Field

Tue 9/30

6:40 am-2:47 pm

1 stop6h 07m

$341

PhiladelphiaMissoula

PHL - MSO

PHLMSO

Philadelphia

Tue 9/9

6:42 am-1:00 pm

1 stop8h 18m

Missoula Johnson-Bell Field

Wed 9/17

1:51 pm-1:10 am

1 stop9h 19m

$341

PhiladelphiaMissoula

PHL - MSO

PHLMSO

Philadelphia

Wed 9/24

12:17 pm-11:46 pm

2 stops13h 29m

Missoula Johnson-Bell Field

Tue 9/30

6:20 pm-9:25 am

2 stops13h 05m

$351

PhiladelphiaMissoula

PHL - MSO

PHLMSO

Philadelphia

Tue 9/23

4:00 pm-11:18 pm

1 stop9h 18m

Missoula Johnson-Bell Field

Mon 9/29

1:51 pm-1:10 am

1 stop9h 19m

$366

PhiladelphiaMissoula

PHL - MSO

PHLMSO

Philadelphia

Mon 9/8

6:59 pm-11:49 pm

1 stop6h 50m

Missoula Johnson-Bell Field

Sat 9/13

5:45 am-2:00 pm

1 stop6h 15m

$391

PhiladelphiaMissoula

PHL - MSO

PHLMSO

Philadelphia

Mon 9/8

10:30 am-9:22 pm

2 stops12h 52m

Missoula Johnson-Bell Field

Sat 9/13

6:30 am-5:21 pm

2 stops8h 51m

$401

PhiladelphiaMissoula

PHL - MSO

PHLMSO

Philadelphia

Mon 9/15

4:00 pm-11:18 pm

1 stop9h 18m

$171

PhiladelphiaMissoula

PHL - MSO

PHLMSO

Philadelphia

Mon 9/15

6:45 am-3:58 pm

2 stops11h 13m

$195

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/14

Best time to book a flight from Philadelphia to Missoula

Have a flexible travel schedule? Discover the best time to fly to Missoula from Philadelphia with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Philadelphia to Missoula

How far ahead should I book a flight from Philadelphia to Missoula?

Use this chart to determine the optimal time to book a round-trip flight from Philadelphia to Missoula. Price data was last updated on August 8, 2025.

To ensure you get the cheapest price possible for a flight from Philadelphia to Missoula, you should look to book at least 23 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest month to book a flight from Philadelphia to Missoula?

Currently, October is the cheapest month in which you can book a flight from Philadelphia to Missoula (average of $365). Flying from Philadelphia to Missoula in March is currently the most expensive (average of $506). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from PHL to MSO?

Find hourly flight availability from Philadelphia to Missoula. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated August 14, 2025.

A simple way to save on the total cost of your ticket is to fly from Philadelphia to Missoula in the afternoon. If you’re flexible enough to do this you can expect to save up to 57% on your trip compared to booking a flight in the morning.

What’s the top layover airport for flights from Philadelphia to Missoula?

Share of 1-stop round-trip flights from Philadelphia to Missoula chosen by Cheapflights users in the past 12 months, using the same layover each way.

Chicago (ORD) – chosen by Cheapflights users on 75% of 1-stop itineraries from Philadelphia to Missoula on Cheapflights.

What’s the cheapest layover airport for flights from Philadelphia to Missoula?

Average round-trip fare for 1-stop flights from Philadelphia to Missoula, chosen by Cheapflights users in the past 12 months, with the same layover each way.

Denver (DEN) is the most affordable 1-stop option, with an average round-trip price of $526.

What’s the fastest layover option from Philadelphia to Missoula?

Shortest average travel time for 1-stop one-way flights from Philadelphia to Missoula, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by layover airport.

Flights via Chicago (ORD) have the shortest average one-way travel time for 1-stop routes: 7h 08m.

Which airport typically offers the quickest layover for flights from Philadelphia to Missoula?

Average layover duration for 1-stop one-way flights from Philadelphia to Missoula, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.

Flights via Chicago (ORD) offer the fastest connection on this route, with an average layover time of 1h 06m.

Reviews of airlines servicing Missoula

Get insights into the airlines that provide service to Missoula. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Missoula. Reviews last updated August 14, 2025.
Get a feel of what it's like to fly with Delta, United Airlines, and American Airlines from Philadelphia to Missoula by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,980 reviews

Boarding

8.2

Overall

8.0

Entertainment

7.9

Comfort

7.9

Crew

8.5

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,980 reviews
Delta
8.0
Very good
7,980 reviews

Boarding

8.2

Overall

8.0

Entertainment

7.9

Comfort

7.9

Crew

8.5

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
United Airlines
7.4
Good
8,916 reviews
Delta
8.0
Very good
7,980 reviews

Boarding

8.2

Overall

8.0

Entertainment

7.9

Comfort

7.9

Crew

8.5

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,980 reviews

Boarding

8.2

Overall

8.0

Entertainment

7.9

Comfort

7.9

Crew

8.5

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Frontier
5.8
Fair
3,217 reviews
Delta
8.0
Very good
7,980 reviews

Boarding

8.2

Overall

8.0

Entertainment

7.9

Comfort

7.9

Crew

8.5

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Related info for your journey

Find useful and relevant information for your journey from Philadelphia to Missoula. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What are the cheapest airlines flying from Philadelphia to Missoula round-trip?

    According to our current data, Frontier ($150), Delta ($340), and American Airlines ($382) offers the cheapest pricing from Philadelphia to Missoula. Frontier is currently priced 74% below the average price you’ll pay for this route.

  • Can I find deals for flights from Philadelphia to Missoula that include hotel bookings?

    Yes. In addition to deals on Philadelphia to Missoula flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Philadelphia to Missoula?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Philadelphia to Missoula.

  • Can I find deals for business class flights from Philadelphia to Missoula?

    Yes. Cheapflights offers flight deals from Philadelphia to Missoula by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Philadelphia to Missoula?

    Currently, October is the cheapest month in which you can book a flight from Philadelphia to Missoula (average of $365). Flying from Philadelphia to Missoula in March is currently the most expensive (average of $506). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Top 4 airlines flying from Philadelphia to Missoula

Discover the top 4 airlines that operate flights from Philadelphia to Missoula. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated August 14, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$150Average$324FlexibilityNo cancel feeOn-time62%
DeltaCheapest$340Average$574FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$382Average$520FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$410Average$619FlexibilityNo cancel feeOn-time69%

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