HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Philadelphia

$506+ 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 3/9. Fares are subject to change and may not be available on all flights or dates of travel.
GTF — PHL
Oct 24 — Oct 311
Fri 10/24
Fri 10/31
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Great Falls to Philadelphia with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap 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 September 24, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$506
(Delta)

Popular in

October

Cheapest in

April

Average price

$585
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. 27% potential increase in price ($282 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 13% potential price decrease ($93 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in September 2025
Search Deals

Find 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 September 24, 2025.

This Expedia deal was found by Cheapflights users on 9/23. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/247:21 pmGTF - PHL
1 stop8h 16mAlaska Airlines
Sat 1/37:00 amPHL - GTF
1 stop13h 41mAlaska Airlines
Deal found 9/23$668
This Delta deal was found by Cheapflights users on 9/23. 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 12/245:30 amGTF - PHL
2 stops9h 09mDelta
Sat 1/37:00 amPHL - GTF
1 stop7h 31mDelta
Deal found 9/23$707
This United Airlines deal was found by Cheapflights users on 9/23. 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 10/87:00 amGTF - PHL
2 stops12h 28mUnited Airlines
Sun 10/128:00 amPHL - GTF
1 stop7h 26mUnited Airlines
Deal found 9/23$732
This United Airlines deal was found by Cheapflights users on 9/24. 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 10/102:31 pmGTF - PHL
1 stop27h 04mUnited Airlines
Tue 10/148:00 amPHL - GTF
1 stop15h 11mUnited Airlines
Deal found 9/24$852
This United Airlines deal was found by Cheapflights users on 9/23. 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 12/242:35 pmGTF - PHL
3 stops21h 36mUnited Airlines
Sat 1/36:34 pmPHL - GTF
2 stops30h 12mUnited Airlines
Deal found 9/23$853
This Alaska Airlines deal was found by Cheapflights users on 9/23. 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.
Wed 10/86:15 pmGTF - PHL
1 stop9h 25mAlaska Airlines
Sun 10/127:11 pmPHL - GTF
1 stop24h 24mAlaska Airlines
Deal found 9/23$1,035
This Delta deal was found by Cheapflights users on 9/22. 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 12/236:19 pmGTF - PHL
2 stops13h 07mDelta
Fri 12/267:00 amPHL - GTF
1 stop7h 31mDelta
Deal found 9/22$1,351

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 September 24, 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 3/9

1:10 pm-11:16 pm

1 stop8h 06m

Philadelphia

Wed 3/11

7:00 am-12:32 pm

1 stop7h 32m

$506

Great FallsPhiladelphia

GTF - PHL

GTFPHL

Great Falls

Wed 2/18

1:10 pm-12:22 am

2 stops9h 12m

Philadelphia

Sun 2/22

7:00 am-12:32 pm

1 stop7h 32m

$512

Great FallsPhiladelphia

GTF - PHL

GTFPHL

Great Falls

Wed 12/24

7:21 pm-5:37 am

1 stop8h 16m

Philadelphia

Sat 1/3

7:00 am-6:41 pm

1 stop13h 41m

$668

Great FallsPhiladelphia

GTF - PHL

GTFPHL

Great Falls

Wed 12/24

5:30 am-4:39 pm

2 stops9h 09m

Philadelphia

Sat 1/3

7:00 am-12:31 pm

1 stop7h 31m

$707

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/22

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 September.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*3 stars
ExpediaPrice Accuracy2 starsTrust Score*3 stars
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 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

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

Currently, August is the cheapest month in which you can book a flight from Great Falls to Philadelphia (average of $236). Flying from Great Falls to Philadelphia in March is currently the most expensive (average of $295). 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.

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 September 24, 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
8,928 reviews

Comfort

7.3

Overall

7.4

Food

6.6

Crew

8.1

Entertainment

7.1

Boarding

7.7

Reviews

1 / 20
4.0
Okay

Tim,Sep 2025

IAD - GSP

This was pretty bad. It’s chaos at the Dulles boarding gates for the small regional jets because they use one gate to board 3-4 flights at a time. So, it’s difficult knowing where and when to go. There is little space for any size of carrry-on, so most had to gate check their bags. However, the worst of it was that our single flight attendant fell asleep before we took off and the pilot couldn’t do so until she responded to his messages. My wife had to wake her up! So we were a little late leaving. Not to be thwarted, the flight attendant fell asleep right after take off and there was no sight of her during the flight. When the aircraft touched down, a tray of unsecured canned drinks came crashing onto the aisle up front. I can only assume someone didn’t do what they were supposed to. The pilot was great, but I’m sure he must not be happy with this crew member.
United Airlines
7.4
Good
8,928 reviews
United Airlines
7.4
Good
8,928 reviews

Comfort

7.3

Overall

7.4

Food

6.6

Crew

8.1

Entertainment

7.1

Boarding

7.7

Reviews

1 / 20
4.0
Okay

Tim,Sep 2025

IAD - GSP

This was pretty bad. It’s chaos at the Dulles boarding gates for the small regional jets because they use one gate to board 3-4 flights at a time. So, it’s difficult knowing where and when to go. There is little space for any size of carrry-on, so most had to gate check their bags. However, the worst of it was that our single flight attendant fell asleep before we took off and the pilot couldn’t do so until she responded to his messages. My wife had to wake her up! So we were a little late leaving. Not to be thwarted, the flight attendant fell asleep right after take off and there was no sight of her during the flight. When the aircraft touched down, a tray of unsecured canned drinks came crashing onto the aisle up front. I can only assume someone didn’t do what they were supposed to. The pilot was great, but I’m sure he must not be happy with this crew member.

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 $506, Delta can have you in Philadelphia from Great Falls in 8h 06m. The distance between Great Falls and Philadelphia is about 1860 mi.

  • 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 24% 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.

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

    Currently, August is the cheapest month in which you can book a flight from Great Falls to Philadelphia (average of $236). Flying from Great Falls to Philadelphia in March is currently the most expensive (average of $295). 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

Traveling to a place near Philadelphia?

Book flights to Philadelphia if you plan to visit one of these locations
Vineland
Wildwood
King of Prussia
Pottstown
Reading
Ocean City
Dewey Beach
Ephrata
Camden
Cherry Hill
Dover
Elkton
Essington
Willow Grove
Newark
Millville
Chester
Exton
Havre de Grace
Plymouth Meeting

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Great Falls to Philadelphia

See prices for flight routes from nearby airports that may be better suited for you.
Bozeman to John F Kennedy Intl flights
Bozeman to Newark flights
Bozeman to LaGuardia flights
Billings to Dulles Intl flights
Billings to Reagan-National flights
Bozeman to Dulles Intl flights
Bozeman to Reagan-National flights
Billings to John F Kennedy Intl flights
Missoula to John F Kennedy Intl flights
Billings to Newark flights
Missoula to Newark flights
Bozeman to Philadelphia flights
Billings to LaGuardia flights
Missoula to LaGuardia flights
Missoula to Dulles Intl flights
Missoula to Reagan-National flights
Bozeman to Pittsburgh flights
Missoula to Philadelphia flights
Kalispell to Philadelphia flights
Helena to LaGuardia flights
Helena to Newark flights
Billings to Philadelphia flights
Great Falls to Newark flights
Kalispell to John F Kennedy Intl flights
Missoula to Harrisburg flights
Bozeman to Harrisburg flights
Kalispell to Newark flights
Helena to John F Kennedy Intl flights
Missoula to Pittsburgh flights
Great Falls to John F Kennedy Intl flights
Great Falls to Pittsburgh flights
Helena to Dulles Intl flights
Kalispell to Dulles Intl flights
Helena to Reagan-National flights
Kalispell to LaGuardia flights
Helena to Philadelphia flights
Kalispell to Reagan-National flights
Cody to Reagan-National flights
Missoula to Allentown flights
Helena to Pittsburgh flights
Great Falls to Dulles Intl flights
Great Falls to LaGuardia flights
Great Falls to Reagan-National flights
Cody to Dulles Intl flights
Missoula to State College flights
Butte to Philadelphia flights
Missoula to Scranton flights
Bozeman to Allentown flights
Helena to Allentown flights

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 September 24, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$576Average$717FlexibilityNo cancel feeOn-time69%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.