GTF - PHL

$179 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 9/7. 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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41,299,237 searches in the past 7 days on KAYAK

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Everything you should know

Cheapest round-trip
$338
Delta
Wed 10/14Wed 10/21
GTF - PHL • 1 stop
Cheapest one-way
$179
Delta
Mon 9/7
GTF - PHL • 1 stop
Top airlines
Delta
Cheapest • from $338 (round-trip)
United Airlines
Best reviews • 7.4 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between Great Falls and Philadelphia. You'll need at least 1 connection.
Insights
Insights
Insights
Insights
Top layover airports
Salt Lake City (SLC)
Cheapest • Avg $443 (round-trip)
Denver (DEN)
Shortest trip • 7h 08m (one-way)
Insights
Insights
Insights
Insights
When to travel
November
Cheapest • 100% price drop
December
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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!
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

Wed, Oct 14 - Wed, Oct 21
Delta Logo
6:20 pm - 5:41 am
GTF
-
PHL
9h 21m
1 stop
Delta Logo
7:00 am - 12:27 pm
PHL
-
GTF
7h 27m
1 stop
$338Delta
Sun, Oct 18 - Thu, Oct 22
Delta Logo
6:20 pm - 5:41 am
GTF
-
PHL
9h 21m
1 stop
Delta Logo
7:00 am - 12:27 pm
PHL
-
GTF
7h 27m
1 stop
$358Delta
Wed, Oct 14 - Fri, Oct 23
Delta Logo
6:20 pm - 5:41 am
GTF
-
PHL
9h 21m
1 stop
Delta Logo
7:00 am - 12:27 pm
PHL
-
GTF
7h 27m
1 stop
$363Delta
Mon, Oct 19 - Thu, Oct 22
Delta Logo
6:20 pm - 11:02 am
GTF
-
PHL
14h 42m
2 stops
Delta Logo
7:00 am - 12:27 pm
PHL
-
GTF
7h 27m
1 stop
$364Delta
Sat, Oct 17 - Tue, Oct 20
Delta Logo
6:20 pm - 9:27 am
GTF
-
PHL
13h 07m
2 stops
Delta Logo
7:00 am - 12:27 pm
PHL
-
GTF
7h 27m
1 stop
$369Delta
Sun, Oct 18 - Fri, Oct 23
Delta Logo
6:20 pm - 5:41 am
GTF
-
PHL
9h 21m
1 stop
Delta Logo
7:00 am - 12:27 pm
PHL
-
GTF
7h 27m
1 stop
$383Delta
Thu, Jul 9 - Mon, Jul 13
Delta Logo
6:25 pm - 6:15 am
GTF
-
PHL
9h 50m
1 stop
Delta Logo
5:15 am - 5:42 pm
PHL
-
GTF
14h 27m
2 stops
$389Delta
Sat, Oct 17 - Thu, Oct 22
Alaska Airlines Logo
4:55 pm - 5:27 am
GTF
-
PHL
10h 32m
1 stop
Alaska Airlines Logo
7:00 am - 4:13 pm
PHL
-
GTF
11h 13m
1 stop
$408Alaska Airlines
Fri, May 22 - Sat, May 23
Delta Logo
6:19 pm - 6:10 am
GTF
-
PHL
9h 51m
1 stop
Delta Logo
12:38 pm - 10:26 pm
PHL
-
GTF
11h 48m
2 stops
$424Delta
Sat, Oct 17 - Tue, Oct 20
United Airlines Logo
6:15 am - 9:32 pm
GTF
-
PHL
13h 17m
2 stops
United Airlines Logo
11:39 am - 9:21 pm
PHL
-
GTF
11h 42m
2 stops
$430United 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.

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 November, where tickets cost $0 (return) on average. On the other hand, the most expensive months are July and March, where the average cost of round-trip tickets is $1,032 and $808 respectively.

Find deals

Good to know

Low seasonOctober
Cheapest flight$179
Best time to beat the crowds with an average 63% drop in price.
Most popular time to fly and prices are also 20% 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 $275 for a one-way ticket and $338 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 9677 reviews
8.1Crew
7.7Boarding
6.6Food
7.3Comfort
7.1Entertainment
Airline reviews

Booked through Kayak Business, had a seat in middle and towards back due to booking rate, not comfortable.

4.0 OkayMichael, Apr 2026
SNA - DEN
Read more United Airlines reviews

Booked through Kayak Business, had a seat in middle and towards back due to booking rate, not comfortable.

Was great in general, try to respect time and excuses when slight changes have been made, appreciated!

A long delay. Don't travel late in the day.

Super friendly with lots of drink options an entertainment. Friendly crew.

Standard flight with a drinks and a snack- overall very quick flight. The flight attendants were very strict, bordered on rude.

Outstanding service, efficient & friendly crew, flight was safe, comfortable & on time

Delayed - weather wasn't bad at either end. Also sat on tarmac in ORD.

They told us yesterday APR21st that they were cleaning the plane and we got delayed. After that they said they didn't had any crew for the flight so they cancelled the flight till next day.

The crew was great. Very friendly and responsive. The plane was old, small and tight. We ran out of overhead space and I had to check. Middle seat was particularly tight.

The flight crew on this leg of my trip was very friendly and pleasant. Every one of them was humorous, as well as helpful and accommodating. This group was BY FAR the best crew I’ve flown with. They deserve kudos.

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)