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$448+ Cheap flights from Great Falls to Philadelphia (GTF - PHL)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/26. Fares are subject to change and may not be available on all flights or dates of travel.
GTF — PHL
Jan 22 — Jan 291
Thu 1/22
Thu 1/29
1 adult, Economy
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Cheap flight deals from Great Falls to Philadelphia

Best flights from Great Falls to Philadelphia
Discover carefully curated flight deals from Great Falls to Philadelphia that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 23, 2025.

This Alaska Airlines deal was found by Cheapflights users on 12/20. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 1/265:59 pmGTF - PHL
1 stop22h 04mAlaska Airlines
Fri 1/307:06 pmPHL - GTF
1 stop24h 13mAlaska Airlines
Deal found 12/20$448
This United Airlines deal was found by Cheapflights users on 12/20. 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 1/262:29 pmGTF - PHL
2 stops25h 05mUnited Airlines
Fri 1/303:43 pmPHL - GTF
1 stop8h 10mUnited Airlines
Deal found 12/20$536
This Delta deal was found by Cheapflights users on 12/20. 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.
Fri 1/91:15 pmGTF - PHL
1 stop7h 59mDelta
Tue 1/137:00 amPHL - GTF
1 stop7h 33mDelta
Deal found 12/20$562

Find flight deals from Great Falls to Philadelphia

Discover tips and strategies to find the most affordable flight options for your journey from Great Falls (GTF) to Philadelphia (PHL). 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 December 23, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$448
(Alaska Airlines)

Popular in

July

Cheapest in

October

Average price

$523
Provider with most accurate pricing for Great Falls-Philadelphia flight deals.
Search Deals
Provider most trusted by Cheapflights users for Great Falls-Philadelphia flights.
Search Deals
From Great Falls to Philadelphia
Search Deals
Highest demand for flights based on searches. 19% potential increase in price ($151 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($32 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Great Falls to Philadelphia 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 December 23, 2025.
Use the filters below to find and compare flights from Great Falls to Philadelphia that are best for you.

Fly from

Great Falls

Fly to

Philadelphia

Route

Depart

Return

Price

Great FallsPhiladelphia

GTF - PHL

GTFPHL

Great Falls

Mon 1/26

5:59 pm-6:03 pm

1 stop22h 04m

Philadelphia

Fri 1/30

7:06 pm-5:19 pm

1 stop24h 13m

$448

Great FallsPhiladelphia

GTF - PHL

GTFPHL

Great Falls

Mon 1/26

2:29 pm-5:34 pm

2 stops25h 05m

Philadelphia

Fri 1/30

3:43 pm-9:53 pm

1 stop8h 10m

$536

Great FallsPhiladelphia

GTF - PHL

GTFPHL

Great Falls

Fri 1/9

1:15 pm-11:14 pm

1 stop7h 59m

Philadelphia

Tue 1/13

7:00 am-12:33 pm

1 stop7h 33m

$562

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/20

Compare providers for flights from Great Falls to Philadelphia

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Great Falls to Philadelphia in December.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Great Falls-Philadelphia flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Great Falls-Philadelphia flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Great Falls-Philadelphia flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Great Falls-Philadelphia flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Great Falls-Philadelphia flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Great Falls to Philadelphia

Have a flexible travel schedule? Discover the best time to fly to Philadelphia from Great Falls 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 Great Falls to Philadelphia

How much does it cost to fly round-trip from Great Falls to Philadelphia?

Reviews of airlines servicing Philadelphia

Get insights into the airlines that provide service to Philadelphia. 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 Philadelphia. Reviews last updated December 23, 2025.
Get a feel of what it's like to fly with United Airlines from Great Falls to Philadelphia by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
9,105 reviews

Overall

7.4

Food

6.6

Entertainment

7.1

Comfort

7.3

Crew

8.1

Boarding

7.7

Reviews

1 / 20
10.0
Excellent

Michelle,Dec 2025

DEN - MKE

I liked that the plane waited 5 minutes for a family whose incoming plane was late. This was the last flight of the day to MKE. Flight attendants actually checked in throughout the flight. Although, not really friendly. Happy to see screens on seat backs again. This is my first time not flying first class in over 10 years. It was economy plus.
United Airlines
7.4
Good
9,105 reviews
United Airlines
7.4
Good
9,105 reviews

Overall

7.4

Food

6.6

Entertainment

7.1

Comfort

7.3

Crew

8.1

Boarding

7.7

Reviews

1 / 20
10.0
Excellent

Michelle,Dec 2025

DEN - MKE

I liked that the plane waited 5 minutes for a family whose incoming plane was late. This was the last flight of the day to MKE. Flight attendants actually checked in throughout the flight. Although, not really friendly. Happy to see screens on seat backs again. This is my first time not flying first class in over 10 years. It was economy plus.

Related info for your journey

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

  • How long is the flight from Great Falls to Philadelphia?

    For as low as $562, Alaska Airlines can have you in Philadelphia from Great Falls in 7h 59m. The distance between Great Falls and Philadelphia is about 1860 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What is the cheapest airline to fly from Great Falls to Philadelphia round-trip?

    United Airlines, at $452, was found to be the cheapest airline from Great Falls to Philadelphia.. United Airlines is 26% cheaper than the average price of flights available within the next 90 days to this destination.

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

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

  • How can I find direct flights from Great Falls to Philadelphia?

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

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

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

See more FAQs

Traveling to a place near Philadelphia?

Book flights to Philadelphia if you plan to visit one of these locations
Wildwood
Pottstown
King of Prussia
Reading
Ocean City
Cherry Hill
Lewes
Dewey Beach
Ephrata
Camden
Vineland
Milford
Dover
Elkton
Essington
Willow Grove
New Castle
Millville
Newark
Chester

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Alternative routes for Great Falls to Philadelphia

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Top airline flying from Great Falls to Philadelphia

Discover the top airline that operate flights from Great Falls to Philadelphia. 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 December 23, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$452Average$684FlexibilityNo cancel feeOn-time69%

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