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$213+ Cheap flights from Great Falls to Philadelphia (GTF - PHL)

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 7/27. Fares are subject to change and may not be available on all flights or dates of travel.
GTF — PHL
Apr 26 — May 31
Sun 4/26
Sun 5/3
1 adult, Economy
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Cheap flight deals from Great Falls to Philadelphia

Cheapest flights from Great Falls to Philadelphia
Explore the most affordable flight options available from Great Falls to Philadelphia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 27, 2026.

This Delta deal was found by Cheapflights users on 3/26. 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 4/106:22 pm
GTF
-
PHL
1 stop9h 19m
Delta
Tue 4/147:15 am
PHL
-
GTF
1 stop7h 12m
Delta
Deal found 3/26$408
This United Airlines deal was found by Cheapflights users on 3/26. 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.
Fri 4/102:30 pm
GTF
-
PHL
2 stops8h 29m
United Airlines
Tue 4/1410:00 am
PHL
-
GTF
2 stops13h 17m
United Airlines
Deal found 3/26$419
This Delta deal was found by Cheapflights users on 3/22. 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.
Tue 8/46:25 pm
GTF
-
PHL
2 stops12h 16m
Delta
Tue 8/1112:02 pm
PHL
-
GTF
2 stops12h 42m
Delta
Deal found 3/22$424
This Delta deal was found by Cheapflights users on 3/22. 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 4/16:22 pm
GTF
-
PHL
1 stop9h 19m
Delta
Tue 4/147:15 am
PHL
-
GTF
1 stop7h 12m
Delta
Deal found 3/22$428
This United Airlines deal was found by Cheapflights users on 3/22. 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.
Wed 4/12:30 pm
GTF
-
PHL
2 stops8h 29m
United Airlines
Tue 4/1411:36 am
PHL
-
GTF
2 stops11h 41m
United Airlines
Deal found 3/22$439
This United Airlines deal was found by Cheapflights users on 3/25. 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.
Tue 4/212:30 pm
GTF
-
PHL
1 stop7h 13m
United Airlines
Sat 4/253:40 pm
PHL
-
GTF
1 stop7h 37m
United Airlines
Deal found 3/25$458
This Delta deal was found by Cheapflights users on 3/25. 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 11/236:20 pm
GTF
-
PHL
1 stop9h 21m
Delta
Tue 12/17:00 am
PHL
-
GTF
1 stop7h 27m
Delta
Deal found 3/25$463

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 March 27, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$408
(Delta)

One-way from

$213
(Kiwi.com)

Popular in

July

Cheapest in

October

Average price

$808
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
One-way flight from Great Falls to Philadelphia
Search Deals
Highest demand for flights based on searches. 22% potential increase in price ($182 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 7% potential price decrease ($42 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2026
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 March 27, 2026.
Use the filters below to find and compare flights from Great Falls to Philadelphia that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Great FallsPhiladelphia

GTF - PHL

GTFPHL

Great Falls

Tue 8/4

6:25 pm-6:13 am

1 stop9h 48m

Philadelphia

Tue 8/11

12:02 pm-10:44 pm

2 stops12h 42m

$419

Great FallsPhiladelphia

GTF - PHL

GTFPHL

Great Falls

Fri 4/10

2:30 pm-12:59 am

2 stops8h 29m

Philadelphia

Tue 4/14

10:00 am-9:17 pm

2 stops13h 17m

$419
Quickest round-trip

Great FallsPhiladelphia

GTF - PHL

GTFPHL

Great Falls

Tue 4/21

2:30 pm-11:43 pm

1 stop7h 13m

Philadelphia

Sat 4/25

8:00 am-1:31 pm

1 stop7h 31m

$458
Cheapest one-way
Quickest one-way

Great FallsPhiladelphia

GTF - PHL

GTFPHL

Great Falls

Mon 7/27

6:25 pm-6:13 am

1 stop9h 48m

$282

Great FallsPhiladelphia

GTF - PHL

GTFPHL

Great Falls

Mon 7/27

10:19 am-3:18 pm

3 stops26h 59m

$283

Great FallsPhiladelphia

GTF - PHL

GTFPHL

Great Falls

Mon 7/27

6:15 am-2:47 pm

3 stops30h 32m

$618

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/22

Sorted by cheapest first

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 March.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice 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 FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Great Falls-Philadelphia flight deals on Cheapflights vs. FlightHub >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 FlightHub the most. FlightHub 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 March 27, 2026.
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
9,492 reviews

Food

6.6

Entertainment

7.1

Overall

7.4

Boarding

7.7

Crew

8.1

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
United Airlines
7.4
Good
9,492 reviews
United Airlines
7.4
Good
9,492 reviews

Food

6.6

Entertainment

7.1

Overall

7.4

Boarding

7.7

Crew

8.1

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family

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 $419, Delta can have you in Philadelphia from Great Falls in 8h 29m. 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 $576, was found to be the cheapest airline from Great Falls to Philadelphia.. United Airlines is 6% 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
Reading
King of Prussia
Camden
Ocean City
Lewes
Dewey Beach
Pottstown
Ephrata
Vineland
Milford
Cherry Hill
Dover
Elkton
Essington
Willow Grove
New Castle
Millville
Glen Mills
Chester

Browse thousands of different options on Cheapflights for your next trip

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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 March 27, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$576Average$728FlexibilityNo cancel feeOn-time69%

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