$174+ Cheap flights from Philadelphia to Great Falls (PHL - GTF)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/14. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — GTF
Oct 12 — Oct 191
Round-trip
1 adult, Economy
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Find cheap flights from Philadelphia to Great Falls with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
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Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Philadelphia to Great Falls
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Cheapest flights from Philadelphia to Great FallsExplore the most affordable flight options available from Philadelphia to Great Falls. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 12, 2026.
Explore the most affordable flight options available from Philadelphia to Great Falls. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 12, 2026.
This Delta deal was found by Cheapflights users on 9/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/37:20 am -
1 stop7h 15m
Sun 10/116:27 pm -
1 stop9h 38m
Deal found 9/12![Delta logo]()
$368
This Delta deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/305:20 am -
2 stops9h 18m
Sat 11/75:40 am -
2 stops10h 38m
Deal found 9/8![Delta logo]()
$379
This United Airlines deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/298:00 am -
1 stop7h 41m
Mon 10/52:37 pm -
1 stop6h 43m
Deal found 9/9![United Airlines logo]()
$402
This Delta deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/277:20 am -
1 stop7h 15m
Mon 10/56:21 pm -
1 stop9h 44m
Deal found 9/9![Delta logo]()
$403
This Alaska Airlines deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/296:59 pm -
1 stop23h 40m
Mon 10/55:15 pm -
1 stop10h 26m
Deal found 9/11![Alaska Airlines logo]()
$413
This Delta deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/2912:29 pm -
2 stops12h 08m
Mon 10/56:21 pm -
2 stops12h 39m
Deal found 9/9![Delta logo]()
$414
This United Airlines deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/1310:54 am -
2 stops12h 44m
Sat 11/142:45 pm -
1 stop6h 54m
Deal found 9/8![United Airlines logo]()
$446
Best flights from Philadelphia to Great FallsDiscover carefully curated flight deals from Philadelphia to Great Falls that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 12, 2026.
Discover carefully curated flight deals from Philadelphia to Great Falls that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 12, 2026.
This Delta deal was found by Cheapflights users on 9/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/37:10 am -
2 stops12h 31m
Sun 10/116:27 pm -
1 stop9h 38m
Deal found 9/12![Delta logo]()
$374
This United Airlines deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/301:16 pm -
2 stops10h 22m
Sat 11/72:45 pm -
1 stop6h 54m
Deal found 9/8![United Airlines logo]()
$374
This Alaska Airlines deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/296:59 pm -
1 stop23h 40m
Mon 10/55:15 pm -
1 stop10h 26m
Deal found 9/11![Alaska Airlines logo]()
$413
This Delta deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/305:20 am -
2 stops9h 18m
Sat 11/75:40 am -
2 stops10h 38m
Deal found 9/8![Delta logo]()
$379
This United Airlines deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/3011:20 am -
2 stops12h 02m
Sat 10/36:15 am -
1 stop7h 33m
Deal found 9/9![United Airlines logo]()
$454
This Delta deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/2912:29 pm -
2 stops12h 08m
Mon 10/56:21 pm -
1 stop9h 44m
Deal found 9/11![Delta logo]()
$444
This United Airlines deal was found by Cheapflights users on 9/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/298:00 am -
1 stop7h 41m
Wed 10/72:37 pm -
1 stop6h 43m
Deal found 9/7![United Airlines logo]()
$479
This Delta deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/299:35 am -
2 stops10h 06m
Fri 10/96:27 pm -
1 stop9h 38m
Deal found 9/8![Delta logo]()
$474
This United Airlines deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/268:00 am -
1 stop7h 41m
Wed 9/302:37 pm -
1 stop6h 43m
Deal found 9/11![United Airlines logo]()
$538
This Delta deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/306:30 am -
2 stops13h 11m
Sun 10/46:21 pm -
1 stop9h 44m
Deal found 9/9![Delta logo]()
$576
Last-minute flights from Philadelphia to Great FallsDiscover last-minute flight deals from Philadelphia to Great Falls. Data last updated September 12, 2026 and is based on user searches.
Discover last-minute flight deals from Philadelphia to Great Falls. Data last updated September 12, 2026 and is based on user searches.
This Delta deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/277:20 am -
1 stop7h 15m
Mon 10/56:21 pm -
1 stop9h 44m
Deal found 9/9![Delta logo]()
$403
This United Airlines deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/298:00 am -
1 stop7h 41m
Mon 10/52:37 pm -
1 stop6h 43m
Deal found 9/9![United Airlines logo]()
$402
This Alaska Airlines deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/296:59 pm -
1 stop23h 40m
Mon 10/55:15 pm -
1 stop10h 26m
Deal found 9/11![Alaska Airlines logo]()
$413
This Delta deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/2912:29 pm -
2 stops12h 08m
Mon 10/56:21 pm -
2 stops12h 39m
Deal found 9/9![Delta logo]()
$414
This United Airlines deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/3011:20 am -
2 stops12h 02m
Sat 10/36:15 am -
1 stop7h 33m
Deal found 9/9![United Airlines logo]()
$454
This Delta deal was found by Cheapflights users on 9/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/37:20 am -
1 stop7h 15m
Sun 10/116:27 pm -
1 stop9h 38m
Deal found 9/12![Delta logo]()
$368
This Delta deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/305:20 am -
2 stops9h 18m
Sat 11/75:40 am -
2 stops10h 38m
Deal found 9/8![Delta logo]()
$379
One-way flights from Philadelphia to Great FallsSearch for one-way flight options from Philadelphia to Great Falls. Find affordable one-way fares based on user searches. Data last updated September 12, 2026.
Search for one-way flight options from Philadelphia to Great Falls. Find affordable one-way fares based on user searches. Data last updated September 12, 2026.
This Alaska Airlines deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/147:02 am -
1 stop11h 17m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/10![Alaska Airlines logo]()
$174
This Delta deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/143:00 pm -
2 stops9h 46m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/10![Delta logo]()
$293
This United Airlines deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/146:15 am -
3 stops17h 23m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/11![United Airlines logo]()
$348
Find flight deals from Philadelphia to Great Falls
Discover tips and strategies to find the most affordable flight options for your journey from Philadelphia (PHL) to Great Falls (GTF). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated September 12, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $368 (Delta) |
One-way from | $174 (Alaska Airlines) |
Popular in | December |
Cheapest in | March |
Average price | $597 |
Cheapflights Fare Finder
Customize your flight search to find flights from Philadelphia to Great Falls 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, Cheapflights users made 7,457,451 searches. Data last updated September 12, 2026.
Use the filters below to find and compare flights from Philadelphia to Great Falls that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
PhiladelphiaGreat Falls
PHL Philadelphia - GTF Great Falls
PHLGTF
Philadelphia
Sat 11/14
7:02 am-4:19 pm
1 stop11h 17m
Great Falls
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$174
Quickest round-trip
PhiladelphiaGreat Falls
PHL Philadelphia - GTF Great Falls
PHLGTF
Philadelphia
Sat 11/14
3:00 pm-10:46 pm
2 stops9h 46m
Great Falls
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$293
PhiladelphiaGreat Falls
PHL Philadelphia - GTF Great Falls
PHLGTF
Philadelphia
Sat 11/14
6:15 am-9:38 pm
3 stops17h 23m
Great Falls
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$348
PhiladelphiaGreat Falls
PHL Philadelphia - GTF Great Falls
PHLGTF
Philadelphia
Sat 10/3
7:10 am-5:41 pm
2 stops12h 31m
Great Falls
Sun 10/11
6:27 pm-6:05 am
1 stop9h 38m
$374
PhiladelphiaGreat Falls
PHL Philadelphia - GTF Great Falls
PHLGTF
Philadelphia
Fri 10/30
1:16 pm-9:38 pm
2 stops10h 22m
Great Falls
Sat 11/7
2:45 pm-11:39 pm
1 stop6h 54m
$374
PhiladelphiaGreat Falls
PHL Philadelphia - GTF Great Falls
PHLGTF
Philadelphia
Fri 10/30
5:20 am-12:38 pm
2 stops9h 18m
Great Falls
Sat 11/7
5:40 am-6:18 pm
2 stops10h 38m
$379
PhiladelphiaGreat Falls
PHL Philadelphia - GTF Great Falls
PHLGTF
Philadelphia
Tue 9/29
6:59 pm-4:39 pm
1 stop23h 40m
Great Falls
Mon 10/5
5:15 pm-5:41 am
1 stop10h 26m
$413
PhiladelphiaGreat Falls
PHL Philadelphia - GTF Great Falls
PHLGTF
Philadelphia
Tue 9/29
12:29 pm-10:37 pm
2 stops12h 08m
Great Falls
Mon 10/5
6:21 pm-6:05 am
1 stop9h 44m
$444
PhiladelphiaGreat Falls
PHL Philadelphia - GTF Great Falls
PHLGTF
Philadelphia
Wed 9/30
11:20 am-9:22 pm
2 stops12h 02m
Great Falls
Sat 10/3
6:15 am-3:48 pm
1 stop7h 33m
$454
PhiladelphiaGreat Falls
PHL Philadelphia - GTF Great Falls
PHLGTF
Philadelphia
Tue 9/29
9:35 am-5:41 pm
2 stops10h 06m
Great Falls
Fri 10/9
6:27 pm-6:05 am
1 stop9h 38m
$474
Showing 1-10 of 13 resultsSorted by cheapest first
Compare providers for flights from Philadelphia to Great Falls
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Philadelphia to Great Falls in September.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Philadelphia-Great Falls flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Philadelphia-Great Falls flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Philadelphia-Great Falls flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Philadelphia-Great Falls flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Philadelphia-Great Falls flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
Best time to book a flight from Philadelphia to Great Falls
Have a flexible travel schedule? Discover the best time to fly to Great Falls from Philadelphia with our price prediction graph.
PHL-GTF
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from Philadelphia to Great Falls
What is the cheapest month to book a flight from Philadelphia to Great Falls?
Currently, March is the cheapest month in which you can book a flight from Philadelphia to Great Falls (average of $283). Flying from Philadelphia to Great Falls in October is currently the most expensive (average of $711). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
How much does it cost to fly round-trip from Philadelphia to Great Falls?
Airfare is below average for this route at the moment.
Philadelphia to Great Falls flights typically cost between $468 and $748 in October.The cheapest round-trip price found within the last 5 days was $368 on Delta (Oct 3-Oct 11).
Reviews of airlines servicing Great Falls
Get insights into the airlines that provide service to Great Falls. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Great Falls. Reviews last updated September 12, 2026.
Peruse reviews from past customers who have flown with Delta and United Airlines from Philadelphia to Great Falls to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Entertainment
7.8
Crew
8.5
Boarding
8.1
Food
7.2
Overall
7.8
Comfort
7.8
Reviews
1 / 20
4.0
OkayJennifer,Sep 2026
ORD - LGA
Entertainment
7.8
Crew
8.5
Boarding
8.1
Food
7.2
Overall
7.8
Comfort
7.8
Reviews
1 / 20
4.0
OkayJennifer,Sep 2026
ORD - LGA
Entertainment
7.8
Crew
8.5
Boarding
8.1
Food
7.2
Overall
7.8
Comfort
7.8
Reviews
1 / 20
4.0
OkayJennifer,Sep 2026
ORD - LGA
Related info for your journey
Find useful and relevant information for your journey from Philadelphia to Great Falls. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Book flights to Great Falls if you plan to visit one of these locationsShelby
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Other flights to Great Falls
Explore flights to Great Falls departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on September 12, 2026.
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Browse other Philadelphia and Great Falls flight options. Last updated on September 12, 2026.
Other flights from Philadelphia
Browse through other flights departing from Philadelphia. Flights are based on user searches made on Cheapflights and were last updated on September 12, 2026.
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Check out other popular destinations found by fellow travelers in 2026
Top 2 airlines flying from Philadelphia to Great Falls
Discover the top 2 airlines that operate flights from Philadelphia to Great Falls. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 7,457,451 searches. Data last updated September 12, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$263 | Average$463 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$466 | Average$666 | FlexibilityNo cancel fee | On-time69% |