What is the cheapest airline that flies from Great Falls to Philadelphia?

Delta and United Airlines are the most popular carriers operating from Great Falls to Philadelphia

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?

There are 2 operators available for flights from Great Falls Airport to Philadelphia Airport as of November 2026.

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.

$344 Cheap Flights from Great Falls to Philadelphia in 2026/27

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Great Falls to Philadelphia

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

6:20 pm - 5:41 amGTF Great Falls-PHL Philadelphia

9h 21m1 stop Salt Lake City

7:00 am - 12:27 pmPHL Philadelphia-GTF Great Falls

7h 27m1 stop Salt Lake City

$388Delta

Thu, Mar 25 - Sun, Mar 28

2:45 pm - 11:39 pmGTF Great Falls-PHL Philadelphia

6h 54m1 stop Denver Intl

3:35 pm - 9:38 pmPHL Philadelphia-GTF Great Falls

8h 03m1 stop Denver Intl

$458United Airlines

Sat, Nov 14 - Wed, Nov 18

2:45 pm - 11:39 pmGTF Great Falls-PHL Philadelphia

6h 54m1 stop Denver Intl

10:54 am - 9:38 pmPHL Philadelphia-GTF Great Falls

12h 44m2 stops Chicago O'Hare Intl Denver Intl

$464United Airlines

Sat, Nov 14 - Wed, Nov 18

6:20 pm - 5:41 amGTF Great Falls-PHL Philadelphia

9h 21m1 stop Salt Lake City

12:09 pm - 10:53 pmPHL Philadelphia-GTF Great Falls

12h 44m2 stops Atlanta Hartsfield-Jackson Salt Lake City

$464Delta

Thu, Mar 25 - Sun, Mar 28

5:30 am - 9:30 pmGTF Great Falls-PHL Philadelphia

14h 00m2 stops Salt Lake City Atlanta Hartsfield-Jackson

5:15 am - 12:41 pmPHL Philadelphia-GTF Great Falls

9h 26m2 stops Atlanta Hartsfield-Jackson Salt Lake City

$469Delta

Sat, Nov 14 - Wed, Nov 18

4:51 pm - 5:40 amGTF Great Falls-PHL Philadelphia

10h 49m1 stop Seattle/Tacoma Intl

6:30 pm - 3:28 pmPHL Philadelphia-GTF Great Falls

22h 58m1 stop Seattle/Tacoma Intl

$495Alaska Airlines

Sat, Dec 12 - Mon, Jan 4

6:20 pm - 5:41 amGTF Great Falls-PHL Philadelphia

9h 21m1 stop Salt Lake City

12:09 pm - 10:53 pmPHL Philadelphia-GTF Great Falls

12h 44m2 stops Atlanta Hartsfield-Jackson Salt Lake City

$517Delta

Thu, Mar 25 - Sun, Mar 28

2:47 pm - 11:41 pmGTF Great Falls-PHL Philadelphia

6h 54m1 stop Denver Intl

9:45 am - 9:13 pmPHL Philadelphia-GTF Great Falls

13h 28m2 stops Chicago O'Hare Intl Denver Intl

$535United Airlines

Thu, Dec 3 - Mon, Dec 7

2:42 pm - 11:43 pmGTF Great Falls-PHL Philadelphia

7h 01m1 stop Denver Intl

7:44 am - 1:40 pmPHL Philadelphia-GTF Great Falls

7h 56m1 stop Denver Intl

$543United Airlines

Sat, Feb 27 - Wed, Mar 3

4:55 pm - 4:56 pmGTF Great Falls-PHL Philadelphia

22h 01m1 stop Seattle/Tacoma Intl

5:56 pm - 4:13 pmPHL Philadelphia-GTF Great Falls

24h 17m1 stop Seattle/Tacoma Intl

$607Alaska Airlines

Sat, Feb 27 - Wed, Mar 3

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Delta flights from Great Falls to Philadelphia

Our best Delta deals on Great Falls to Philadelphia flight tickets

Delta

Mar 25

GTF6:20 pmGreat Falls

9h 21m

1 stop

PHL5:41 amPhiladelphia

Mar 28

PHL7:00 amPhiladelphia

7h 27m

1 stop

GTF12:27 pmGreat Falls

$388

Delta

Mar 25

GTF6:20 pmGreat Falls

9h 21m

1 stop

PHL5:41 amPhiladelphia

Mar 28

PHL12:09 pmPhiladelphia

12h 44m

2 stops

GTF10:53 pmGreat Falls

$464

Delta

Nov 14

GTF5:30 amGreat Falls

14h 00m

2 stops

PHL9:30 pmPhiladelphia

Nov 18

PHL5:15 amPhiladelphia

9h 26m

2 stops

GTF12:41 pmGreat Falls

$469

United Airlines flights from Great Falls to Philadelphia

Our best United Airlines deals on Great Falls to Philadelphia flight tickets

United Airlines

Nov 14

GTF2:45 pmGreat Falls

6h 54m

1 stop

PHL11:39 pmPhiladelphia

Nov 18

PHL3:35 pmPhiladelphia

8h 03m

1 stop

GTF9:38 pmGreat Falls

$458

United Airlines

Nov 14

GTF2:45 pmGreat Falls

6h 54m

1 stop

PHL11:39 pmPhiladelphia

Nov 18

PHL10:54 amPhiladelphia

12h 44m

2 stops

GTF9:38 pmGreat Falls

$464

United Airlines

Dec 3

GTF2:47 pmGreat Falls

6h 54m

1 stop

PHL11:41 pmPhiladelphia

Dec 7

PHL9:45 amPhiladelphia

13h 28m

2 stops

GTF9:13 pmGreat Falls

$535

momondo Fare Finder

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 Great Falls - PHL Philadelphia

GTFPHL

Great Falls

Thu 3/25

6:20 pm-5:41 am

1 stop9h 21m

Philadelphia

Sun 3/28

7:00 am-12:27 pm

1 stop7h 27m

$388

Quickest round-trip

Great FallsPhiladelphia

GTF Great Falls - PHL Philadelphia

GTFPHL

Great Falls

Sat 11/14

2:45 pm-11:39 pm

1 stop6h 54m

Philadelphia

Wed 11/18

3:35 pm-9:38 pm

1 stop8h 03m

$458

Great FallsPhiladelphia

GTF Great Falls - PHL Philadelphia

GTFPHL

Great Falls

Sat 11/14

2:45 pm-11:39 pm

1 stop6h 54m

Philadelphia

Wed 11/18

10:54 am-9:38 pm

2 stops12h 44m

$464

Great FallsPhiladelphia

GTF Great Falls - PHL Philadelphia

GTFPHL

Great Falls

Thu 3/25

6:20 pm-5:41 am

1 stop9h 21m

Philadelphia

Sun 3/28

12:09 pm-10:53 pm

2 stops12h 44m

$464

Great FallsPhiladelphia

GTF Great Falls - PHL Philadelphia

GTFPHL

Great Falls

Sat 11/14

5:30 am-9:30 pm

2 stops14h 00m

Philadelphia

Wed 11/18

5:15 am-12:41 pm

2 stops9h 26m

$469

Great FallsPhiladelphia

GTF Great Falls - PHL Philadelphia

GTFPHL

Great Falls

Sat 12/12

4:51 pm-5:40 am

1 stop10h 49m

Philadelphia

Mon 1/4

6:30 pm-3:28 pm

1 stop22h 58m

$495

Great FallsPhiladelphia

GTF Great Falls - PHL Philadelphia

GTFPHL

Great Falls

Thu 3/25

6:20 pm-5:41 am

1 stop9h 21m

Philadelphia

Sun 3/28

12:09 pm-10:53 pm

2 stops12h 44m

$517

Great FallsPhiladelphia

GTF Great Falls - PHL Philadelphia

GTFPHL

Great Falls

Thu 12/3

2:47 pm-11:41 pm

1 stop6h 54m

Philadelphia

Mon 12/7

9:45 am-9:13 pm

2 stops13h 28m

$535

Great FallsPhiladelphia

GTF Great Falls - PHL Philadelphia

GTFPHL

Great Falls

Sat 2/27

2:42 pm-11:43 pm

1 stop7h 01m

Philadelphia

Wed 3/3

7:44 am-1:40 pm

1 stop7h 56m

$543

Great FallsPhiladelphia

GTF Great Falls - PHL Philadelphia

GTFPHL

Great Falls

Sat 2/27

4:55 pm-4:56 pm

1 stop22h 01m

Philadelphia

Wed 3/3

5:56 pm-4:13 pm

1 stop24h 17m

$607

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 16 resultsSorted by cheapest first

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

Prices

Airlines

What is the cheapest month to fly to Philadelphia?

The cheapest month to fly to Philadelphia from Great Falls is in November. Flight prices, which tend to average around $0, are often lower during this time because this is during the off-season. The month of August is another great option to travel to Philadelphia, with average flight prices from Great Falls averaging around $0.

Can stopping save me money on Great Falls to Philadelphia flights?

You could potentially save up to 53% on your flight if you consider stops on a Great Falls to Philadelphia flight.

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

Best Price Found	$344
Fastest flight time	6h 54m
Direct flights	None

The best one-way flight to Philadelphia from Great Falls in the past 72 hours is $344. The best round-trip flight deal from Great Falls to Philadelphia found on momondo in the last 72 hours is $388.

The fastest flight from Great Falls to Philadelphia takes 6h 54m

There are no direct flights from Great Falls to Philadelphia. There are no popular flight routes from Great Falls to Philadelphia.

Search flight deals

Frequently asked questions about flying from Great Falls to Philadelphia

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 6h 54m 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?
There are 2 operators available for flights from Great Falls Airport to Philadelphia Airport as of November 2026.
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?
momondo data reveals that the most frequently booked airline on the route from Great Falls to Philadelphia is United Airlines, representing 77% of all bookings. The subsequent popular airline is Delta at 23%.

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
Delta	PriceFrom $338	Free Cancellation	Rating 7.8 8,696 reviews		Search Delta flights
United Airlines	PriceFrom $343	Free Cancellation	Rating 7.3 10,460 reviews		Search United Airlines flights

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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.