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Cheap flights from Great Falls to Philadelphia from $222

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Great Falls to Philadelphia departing on 10/22. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from Great Falls to Philadelphia

Cheap round-trip flights

United Airlines Logo
7:00 am - 11:09 pmGTF-PHL
14h 09m1 stop
United Airlines Logo
10:05 am - 9:11 pmPHL-GTF
13h 06m2 stops
$683United Airlines
Find Deal
Sun, Oct 5 - Wed, Oct 8
United Airlines Logo
7:00 am - 11:09 pmGTF-PHL
14h 09m1 stop
United Airlines Logo
8:00 am - 1:26 pmPHL-GTF
7h 26m1 stop
$723United Airlines
Find Deal
Sun, Oct 5 - Wed, Oct 8
United Airlines Logo
2:31 pm - 2:16 pmGTF-PHL
21h 45m2 stops
United Airlines Logo
10:05 am - 9:11 pmPHL-GTF
13h 06m2 stops
$762United Airlines
Find Deal
Sun, Oct 5 - Wed, Oct 8
United Airlines Logo
2:31 pm - 12:45 amGTF-PHL
32h 14m3 stops
United Airlines Logo
10:05 am - 9:11 pmPHL-GTF
13h 06m2 stops
$763United Airlines
Find Deal
Sun, Oct 5 - Wed, Oct 8

United Airlines flights from Great Falls to Philadelphia

Our best United Airlines deals on Great Falls to Philadelphia flight tickets
United Airlines
Oct 5
GTF7:00 amGreat Falls
14h 09m
1 stop
PHL11:09 pmPhiladelphia
Oct 8
PHL10:05 amPhiladelphia
13h 06m
2 stops
GTF9:11 pmGreat Falls
$683
Find similar
United Airlines
Oct 5
GTF7:00 amGreat Falls
14h 09m
1 stop
PHL11:09 pmPhiladelphia
Oct 8
PHL8:00 amPhiladelphia
7h 26m
1 stop
GTF1:26 pmGreat Falls
$723
Find similar
United Airlines
Oct 5
GTF2:31 pmGreat Falls
21h 45m
2 stops
PHL2:16 pmPhiladelphia
Oct 8
PHL10:05 amPhiladelphia
13h 06m
2 stops
GTF9:11 pmGreat Falls
$762
Find similar

momondo 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, momondo users made 832,500 searches. Data last updated September 8, 2025.
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

Great FallsPhiladelphia

GTF - PHL

GTFPHL

Great Falls

Sun 10/5

7:00 am-11:09 pm

1 stop14h 09m

Philadelphia

Wed 10/8

10:05 am-9:11 pm

2 stops13h 06m

$683

Great FallsPhiladelphia

GTF - PHL

GTFPHL

Great Falls

Sun 10/5

7:00 am-11:09 pm

1 stop14h 09m

Philadelphia

Wed 10/8

8:00 am-1:26 pm

1 stop7h 26m

$723

Great FallsPhiladelphia

GTF - PHL

GTFPHL

Great Falls

Sun 10/5

2:31 pm-2:16 pm

2 stops21h 45m

Philadelphia

Wed 10/8

10:05 am-9:11 pm

2 stops13h 06m

$762

Great FallsPhiladelphia

GTF - PHL

GTFPHL

Great Falls

Sun 10/5

2:31 pm-12:45 am

3 stops32h 14m

Philadelphia

Wed 10/8

10:05 am-9:11 pm

2 stops13h 06m

$763

Great FallsPhiladelphia

GTF - PHL

GTFPHL

Great Falls

Wed 10/22

6:15 pm-5:40 am

1 stop9h 25m

$222

Great FallsPhiladelphia

GTF - PHL

GTFPHL

Great Falls

Wed 10/22

2:31 pm-11:56 am

2 stops19h 25m

$277

Great FallsPhiladelphia

GTF - PHL

GTFPHL

Great Falls

Wed 10/22

6:15 pm-10:10 pm

3 stops25h 55m

$327

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

See travel insights to Philadelphia from

How to get the cheapest flight ticket from Great Falls to Philadelphia

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the typical price of a round-trip flight between Great Falls and Philadelphia?

What is the cheapest month to fly to Philadelphia?

The cheapest month to fly to Philadelphia from Great Falls is in April. Flight prices, which tend to average around $516, are often lower during this time because this is during the off-season. The month of September is another great option to travel to Philadelphia, with average flight prices from Great Falls averaging around $585.

What is the cheapest day to depart on your flight to Philadelphia?

The cheapest day to depart from Great Falls to Philadelphia is on a Wednesday. Travelers who choose to depart for Philadelphia on a Wednesday will often find tickets for as low as $554. On the other hand, Thursday is the most expensive day to depart from Great Falls because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $956.

What is the cheapest time of day to depart on your flight to Philadelphia?

According to our data, the cheapest time of day to fly to Philadelphia is in the morning. momondo users have found flights departing from Great Falls to Philadelphia in the morning for as low as $667. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. In contrast, the most expensive time of day to depart to Philadelphia is at noon when prices are around $1,777.

When to book flights from Great Falls to Philadelphia

Are you open to changing your travel dates? Check out the ideal times to fly from Great Falls to Philadelphia according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Great Falls to Philadelphia (GTF to PHL) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Great Falls to Philadelphia

Direct flights

None
There are no direct flights from Great Falls to Philadelphia. There are no popular flight routes from Great Falls to Philadelphia.
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  • How far is Great Falls to Philadelphia by plane?

    A flight from Great Falls to Philadelphia will travel around 1858.6 mi. Typically, this will take 14h 09m by plane in normal conditions.

  • When did momondo last update prices for flights from Great Falls Airport to Philadelphia Airport?

    Prices for flights from Great Falls Airport to Philadelphia Airport refresh daily.

  • How many operators does momondo search for flights from Great Falls Airport to Philadelphia Airport?

  • How old do you have to be to fly from Great Falls Airport to Philadelphia Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Great Falls Airport to Philadelphia Airport.

  • What documentation or ID do you need to fly to Philadelphia Airport?

    The travel and health documents you'll need for your trip to Philadelphia Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Philadelphia Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular airline from Great Falls to Philadelphia?

Best airlines flying from Great Falls to Philadelphia

Compare and see reviews for airlines that fly from Great Falls to Philadelphia with momondo
Airline
Rating
Free Cancellation
Price
United AirlinesPriceFrom $576Free CancellationRating
7.4
8,944 reviews
Search United Airlines flights

Traveling to a place near Philadelphia?

Book flights to Philadelphia if you plan to visit one of these locations
Wildwood
Cape May
Rehoboth Beach
Ocean City
Wildwood Crest
King of Prussia
Dewey Beach
Reading
Newark
Cherry Hill
Dover
North Wildwood
Lewes
Avalon
Stone Harbor
Vineland
Essington
Pottstown
Exton
New Castle

Why use momondo?

Why should I use momondo to find a flight deal from Great Falls to Philadelphia?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Great Falls to Philadelphia for you.

Can I find flights from Great Falls to Philadelphia with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Philadelphia from Great Falls with this policy.

How can momondo help me find flights from Great Falls to Philadelphia?

Once you have performed a search for Great Falls to Philadelphia flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from Great Falls to Philadelphia right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Great Falls to Philadelphia now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Philadelphia and let you know when they change.

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Wed 10/8
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