GTF - PHL

$234 Find Cheap Flights from Great Falls to Philadelphia

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Great Falls to Philadelphia departing on 3/20. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Philadelphia

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Great Falls to Philadelphia, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Great Falls to Philadelphia, as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
$308
Delta
Per 4/9Sal 4/14
GTF - PHL • 1 stop
Cheapest one-way
$234
Alaska Airlines
Cum 3/20
GTF - PHL • 1 stop
Top airlines
Delta
Cheapest • from $308 (round-trip)
United Airlines
Best reviews • 7.4 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
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We hope you love your trip to Philadelphia!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Great Falls to Philadelphia (GTF-PHL)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Great Falls to Philadelphia that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Great Falls to Philadelphia

Per, Nis 9 - Sal, Nis 14
Delta Logo
6:22 pm - 5:41 am
GTF
-
PHL
9h 19m
1 stop
Delta Logo
7:00 am - 12:27 pm
PHL
-
GTF
7h 27m
1 stop
$308Delta
Cmt, Nis 18 - Per, Nis 23
Delta Logo
6:20 pm - 5:35 am
GTF
-
PHL
9h 15m
1 stop
Delta Logo
7:00 am - 12:27 pm
PHL
-
GTF
7h 27m
1 stop
$363Delta
Cmt, Nis 18 - Çar, Nis 22
Delta Logo
6:20 pm - 5:35 am
GTF
-
PHL
9h 15m
1 stop
Delta Logo
7:00 am - 12:27 pm
PHL
-
GTF
7h 27m
1 stop
$393Delta
Cmt, Nis 18 - Çar, Nis 22
United Airlines Logo
2:30 pm - 11:43 pm
GTF
-
PHL
7h 13m
1 stop
United Airlines Logo
11:36 am - 9:17 pm
PHL
-
GTF
11h 41m
2 stops
$394United Airlines
Cum, Mar 6 - Pzt, Mar 9
Delta Logo
1:15 pm - 11:46 pm
GTF
-
PHL
8h 31m
1 stop
Delta Logo
9:41 am - 5:42 pm
PHL
-
GTF
10h 01m
2 stops
$399Delta
Cmt, Nis 18 - Per, Nis 23
United Airlines Logo
6:15 am - 9:32 pm
GTF
-
PHL
13h 17m
2 stops
United Airlines Logo
8:00 am - 1:31 pm
PHL
-
GTF
7h 31m
1 stop
$419United Airlines
Cum, Mar 6 - Pzt, Mar 9
Delta Logo
1:15 pm - 11:46 pm
GTF
-
PHL
8h 31m
1 stop
Delta Logo
7:00 am - 12:24 pm
PHL
-
GTF
7h 24m
1 stop
$443Delta
Cum, Mar 6 - Pzt, Mar 9
Delta Logo
1:15 pm - 11:46 pm
GTF
-
PHL
8h 31m
1 stop
Delta Logo
6:00 am - 5:42 pm
PHL
-
GTF
13h 42m
2 stops
$449Delta
Cum, Mar 6 - Pzt, Mar 9
Delta Logo
1:15 pm - 11:46 pm
GTF
-
PHL
8h 31m
1 stop
Delta Logo
7:00 am - 12:24 pm
PHL
-
GTF
7h 24m
1 stop
$463Delta
Cmt, Nis 18 - Per, Nis 23
United Airlines Logo
6:15 am - 9:32 pm
GTF
-
PHL
13h 17m
2 stops
United Airlines Logo
10:00 am - 9:17 pm
PHL
-
GTF
13h 17m
2 stops
$469United Airlines
Booking Insights

KAYAK's insights & trends for Great Falls to Philadelphia flights

Get data-powered insights and trends into flights from Great Falls to Philadelphia to help you find the cheapest flights, the best time to fly and much more.

Which airlines provide the cheapest flights from Great Falls to Philadelphia?

The cheapest round-trip price for the route for each airline clicked by KAYAK users in the last 72 hours.

In the past 3 days, the cheapest round-trip tickets from Great Falls to Philadelphia were found on Delta ($308) and United Airlines ($394).

Find deals

Good to know

Low seasonOctober
Cheapest flight$234
Best time to beat the crowds with an average 64% drop in price.
Most popular time to fly and prices are also 21% lower on average.
Flight from Great Falls to Philadelphia

When to book flights from Great Falls to Philadelphia

Are your dates flexible? Find out the best times to travel from Great Falls to Philadelphia based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Great Falls to Philadelphia

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

    In the last 3 days, the lowest price for a flight from Great Falls to Philadelphia was $234 for a one-way ticket and $308 for a round-trip.

  • Do I need a passport to fly between Great Falls and Philadelphia?

    No, a passport isn't needed to fly from Great Falls to Philadelphia. However, local authorities might ask for an official ID.

  • Which airports will I be using when flying from Great Falls to Philadelphia?

    When flying out of Great Falls you will be using Great Falls. You will be landing at Philadelphia, also known as Philadelphia.

  • Which aircraft models fly most regularly from Great Falls to Philadelphia?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Great Falls to Philadelphia?

    Star Alliance is the only airline alliance operating flights between Great Falls and Philadelphia.

  • How does KAYAK find such low prices on flights from Great Falls to Philadelphia?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Great Falls to Philadelphia.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Great Falls to Philadelphia?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Philadelphia from Great Falls is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Great Falls to Philadelphia?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Philadelphia with an airline and back to Great Falls with another airline. Booking your flights between Great Falls and PHL can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Great Falls to Philadelphia?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Philadelphia from Great Falls up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airline flying from Great Falls to Philadelphia

 
See real verified KAYAK customer reviews for airlines flying from Great Falls to Philadelphia. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Great Falls to Philadelphia? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.4
United AirlinesOverall score based on 9274 reviews
7.3Comfort
6.6Food
8.1Crew
7.1Entertainment
7.7Boarding
Airline reviews

Both of my flights arrived early and check in process was smooth

10.0 ExcellentDarnell, Feb 2026
COS - DEN
Read more United Airlines reviews

Both of my flights arrived early and check in process was smooth

Terrible. No customer service, no food, no drinks on a 6 hour premier economy booking.

Short flight, but no drink/snack service. The flights both going and coming were delayed.

Much better than Spirit. I was please by the easy fast check in and boarding

Everything was on time Will use united again for sure

Plane outlets in my row not working to charge phone. Staff response was, well it should be. Plug into seed for volume not working well. Had to find the sweet spot for plug in or it would shut off and on.

Fine not above and beyond as I had a connection that was delayed due to maintenance

The power at the seat didn't work and the seat itself was difficult to adjust - this was a business class seat. Flight attendant gave me miles to compensate. The attendant was very professional and on top of his game the entire flight.

I upgraded my seat and was promised it would be next to the emergency door for extra leg room and they said it was premium plus but it was at the back of the plane...same thing happened from Newark to Dubai

Everything except the food and entertainment. It was a great experience though

Everything you need to know for your flight from Great Falls to Philadelphia

Information on your arrival and departure airports

Great Falls (GTF)
Philadelphia (PHL)