GTF - PHL

$486 Find Cheap Flights from Great Falls to Philadelphia

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from Great Falls to Philadelphia departing on 3/10. 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

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
Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 22% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

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

Tue, Mar 10 - Wed, Mar 11
Delta Logo
1:10 pm - 11:16 pmGTF-PHL
8h 06m1 stop
Delta Logo
7:00 am - 12:32 pmPHL-GTF
7h 32m1 stop
$486Delta
Find Deal
Wed, Dec 24 - Sat, Jan 3
Delta Logo
1:11 pm - 11:19 pmGTF-PHL
8h 08m1 stop
Delta Logo
7:00 am - 12:31 pmPHL-GTF
7h 31m1 stop
$491Delta
Find Deal
Tue, Mar 10 - Wed, Mar 11
Delta Logo
1:10 pm - 11:16 pmGTF-PHL
8h 06m1 stop
Delta Logo
10:21 am - 10:53 pmPHL-GTF
14h 32m2 stops
$492Delta
Find Deal
Wed, Dec 24 - Sat, Jan 3
Delta Logo
1:11 pm - 12:29 amGTF-PHL
9h 18m2 stops
Delta Logo
7:00 am - 12:31 pmPHL-GTF
7h 31m1 stop
$497Delta
Find Deal
Tue, Mar 10 - Wed, Mar 11
Delta Logo
1:10 pm - 11:16 pmGTF-PHL
8h 06m1 stop
Delta Logo
10:21 am - 10:53 pmPHL-GTF
14h 32m2 stops
$514Delta
Find Deal
Wed, Dec 24 - Sat, Jan 3
Alaska Airlines Logo
7:21 pm - 5:37 amGTF-PHL
8h 16m1 stop
Alaska Airlines Logo
7:00 am - 6:41 pmPHL-GTF
13h 41m1 stop
$642Alaska Airlines
Find Deal
Thu, Oct 2 - Mon, Oct 6
United Airlines Logo
2:31 pm - 10:39 amGTF-PHL
18h 08m2 stops
United Airlines Logo
6:42 pm - 9:11 pmPHL-GTF
28h 29m2 stops
$678United Airlines
Find Deal
Thu, Oct 2 - Mon, Oct 6
United Airlines Logo
2:31 pm - 11:09 pmGTF-PHL
6h 38m1 stop
United Airlines Logo
6:42 pm - 1:26 pmPHL-GTF
20h 44m2 stops
$740United Airlines
Find Deal
Thu, Oct 2 - Mon, Oct 6
United Airlines Logo
2:31 pm - 12:45 amGTF-PHL
32h 14m3 stops
United Airlines Logo
6:42 pm - 9:11 pmPHL-GTF
28h 29m2 stops
$771United Airlines
Find Deal
Wed, Dec 24 - Sat, Jan 3
United Airlines Logo
2:35 pm - 2:11 pmGTF-PHL
21h 36m3 stops
United Airlines Logo
6:35 am - 1:39 pmPHL-GTF
9h 04m2 stops
$787United Airlines
Find Deal

Everything you should know

Top airlines
Delta
Cheapest • from $486 (round-trip)
United Airlines
Best reviews • 7.4 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to travel
April
Cheapest • 34% price drop
August
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Cheapest round-trip
$486
Overall average: $684
Delta
Tue 3/10Wed 3/11
GTF - PHL • 1 stop
Cheapest one-way
Multiple Airlines
Wed 9/17
GTF - PHL • multi-stop
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Philadelphia!
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.

What’s the cheapest day of the week to fly from Great Falls to Philadelphia?

The average price of all round-trip flights from Great Falls to Philadelphia clicked on KAYAK for each day over the last 12 months.

If your flying dates are flexible, you should consider flying to Philadelphia on a Wednesday, as we generally find the cheapest rates on that day for this route. On the other hand, Thursday is the most expensive day to fly from Great Falls to Philadelphia. For your return ticket, we recommend flying on a Tuesday and avoiding Sundays for the best deals.

What is the cheapest month to fly from Great Falls to Philadelphia?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Great Falls to Philadelphia, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Great Falls to Philadelphia is April, where tickets cost $516 (return) on average. On the other hand, the most expensive months are October and July, where the average cost of round-trip tickets is $1,777 and $931 respectively.

Good to know

Low seasonFebruary
Cheapest flight$486
Best time to beat the crowds with an average 13% drop in price.
Most popular time to fly and prices are also 14% 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 $486 for a round-trip ticket.

  • 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?

    SkyTeam, oneworld, and Star Alliance are the airline alliances operating flights between Great Falls and Philadelphia, with SkyTeam being the most commonly used for this route.

  • 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 8924 reviews
7.3Comfort
7.1Entertainment
6.6Food
7.7Boarding
8.1Crew
Airline reviews

The newer screen was super cool and had the option to watch many different shows or movies. Crew was polite and helpful. However again, many children screaming bloody murder and kicking my seat, and parents doing nothing about it as usual.

6.0 GoodKaren Andrea, Sep 2025IAH - MCO
Read more United Airlines reviews

The newer screen was super cool and had the option to watch many different shows or movies. Crew was polite and helpful. However again, many children screaming bloody murder and kicking my seat, and parents doing nothing about it as usual.

Flight was good and crew was super polite. However, there were around 5 kids screaming the WHOLE 2 hours. I understand kids have to come but parents need to do something to control their children. They make the experience terrible, especially after finishing 16 hour shifts at the hospital I needed some sleep, which I did not get.

IAD with the archaic people movers is just a place to be avoided.

All of the United employees I interacted with were professional and courteous. The aircraft was clean, the food on the flight was good. No complaints here.

Armrest controller on my seat 35D and nextbooennseat 35E did not work right. Hard to press buttons to recognize and 35D had constantnpressure either upmost down somit was nearly impossible to make selections. .

I flew with my dog and had already purchased my dog’s ticket. Even that morning I had called costumer service to insure that my husband and I had seats together since the website was giving me an error when choosing our seats and the representative mentioned our dog. I showed up early to the airport and when I got to the gate and we started boarding I was help back and told that I was supposed to have a yellow tag and that I should have checked in at the counter for them to give me that tag. I was not aware of this, the representative on the phone did not say anything. Nor did I see it anywhere in the checking process online, so if you travel with a pet and are not checking in luggage, just know that you still have to go to the check in counter when arriving at the airport unless you want to be the last one to board and not have room for your carry on in the overhead bins. Other than that, I had a great experience.

Once we got in the air the pilot made up some of the time of the delay. So that was really nice.

I understand stuff happens, but plane failures are likely due to lack of maintenance. Additionally, air conditioning wasn't working, no snack/drink service, no WiFi. Fortunately, the crew was communicative and light-hearted. United grabbed another plane and we were able to get to our destination.

There was no food available for this red eye... one little waffle cookie for a 6+ hour flight... thank God I was able to sleep some

It is clear that someone knew, and competent, is in charge of food at United Airlines at least for the international flights. I was flying in coach, but the choices of the dinner were excellent. Tasty, and appropriate size. I had the beef, which was a little bit like a shepherds pie, and it was good. Nothing comparable has been served on a United flight in years. It will not be confused with three star food, but it is very good for airline food. Even better was the breakfast choice between a cinnamon roll and a breakfast sandwich. I chose the breakfast sandwich which was absolutely delicious and which I would happily order again at my local Starbucks or Panera. It is clear that someone knew indifferent is in charge of the food and it’s about time.

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

Information on your arrival and departure airports

Not what you’re looking for? Find thousands of other hotels, flights, car rentals and package deals with KAYAK.