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$175+ Cheap flights from Philadelphia to Great Falls (PHL - GTF)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/4. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — GTF
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
1 adult, Economy
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Cheap 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 June 12, 2025.

Round-trip from

$452
(Alaska Airlines)

One-way from

$175
(Mytrip)

Popular in

December

Cheapest in

January

Average price

$616
From Philadelphia to Great Falls
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One-way flight from Philadelphia to Great Falls
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Highest demand for flights based on searches. 12% potential increase in price ($86 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($28 potential savings vs. average RT price).
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Average for round-trip flights in June 2025
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Find flight deals from Philadelphia to Great Falls

Cheapest flights from Philadelphia to Great Falls
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 June 12, 2025.

This Alaska Airlines deal was found by Cheapflights users on 6/12. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/136:58 pmPHL - GTF
1 stop22h 51mAlaska Airlines
Fri 9/194:29 pmGTF - PHL
1 stop11h 31mAlaska Airlines
Deal found 6/12$452
This Delta deal was found by Cheapflights users on 6/10. 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.
Wed 8/62:41 pmPHL - GTF
1 stop7h 51mDelta
Wed 8/136:06 pmGTF - PHL
1 stop9h 39mDelta
Deal found 6/10$454
This Hawaiian Airlines deal was found by Cheapflights users on 6/10. 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 Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/27:20 amPHL - GTF
1 stop10h 29mHawaiian Airlines
Tue 10/76:15 pmGTF - PHL
1 stop9h 25mHawaiian Airlines
Deal found 6/10$493
This United Airlines deal was found by Cheapflights users on 6/10. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/26:30 amPHL - GTF
2 stops16h 41mUnited Airlines
Tue 10/72:31 pmGTF - PHL
1 stop6h 38mUnited Airlines
Deal found 6/10$539
This Mytrip deal was found by Cheapflights users on 6/10. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/26:15 amPHL - GTF
3 stops17h 14mMultiple Airlines
Mon 7/710:14 amGTF - PHL
1 stop17h 30mMultiple Airlines
Deal found 6/10$548

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 2,558,603 searches. Data last updated June 12, 2025.
Use the filters below to find and compare flights from Philadelphia to Great Falls that are best for you.

Fly from

Philadelphia

Fly to

Great Falls

Route

Depart

Return

Price

PhiladelphiaGreat Falls

PHL - GTF

PHLGTF

Philadelphia

Sat 9/13

6:58 pm-3:49 pm

1 stop22h 51m

Great Falls

Fri 9/19

4:29 pm-6:00 am

1 stop11h 31m

$452

PhiladelphiaGreat Falls

PHL - GTF

PHLGTF

Philadelphia

Wed 8/6

2:41 pm-8:32 pm

1 stop7h 51m

Great Falls

Wed 8/13

6:06 pm-5:45 am

1 stop9h 39m

$454

PhiladelphiaGreat Falls

PHL - GTF

PHLGTF

Philadelphia

Thu 10/2

7:20 am-3:49 pm

1 stop10h 29m

Great Falls

Tue 10/7

6:15 pm-5:40 am

1 stop9h 25m

$493

PhiladelphiaGreat Falls

PHL - GTF

PHLGTF

Philadelphia

Thu 10/2

6:30 am-9:11 pm

2 stops16h 41m

Great Falls

Tue 10/7

2:31 pm-11:09 pm

1 stop6h 38m

$539

PhiladelphiaGreat Falls

PHL - GTF

PHLGTF

Philadelphia

Wed 7/2

6:15 am-9:29 pm

3 stops17h 14m

Great Falls

Mon 7/7

10:14 am-5:44 am

1 stop17h 30m

$548

PhiladelphiaGreat Falls

PHL - GTF

PHLGTF

Philadelphia

Thu 9/4

2:57 pm-9:31 pm

2 stops32h 34m

$175

PhiladelphiaGreat Falls

PHL - GTF

PHLGTF

Philadelphia

Thu 9/4

7:20 am-3:49 pm

1 stop10h 29m

$231

PhiladelphiaGreat Falls

PHL - GTF

PHLGTF

Philadelphia

Sun 6/29

6:30 am-1:36 pm

2 stops9h 06m

$403

PhiladelphiaGreat Falls

PHL - GTF

PHLGTF

Philadelphia

Mon 6/30

2:48 pm-8:32 pm

1 stop7h 44m

$494

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/9

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.
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, January is the cheapest month in which you can book a flight from Philadelphia to Great Falls (average of $367). Flying from Philadelphia to Great Falls in July is currently the most expensive (average of $574). 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.

Rainfall in Great Falls by month

Plan your trip to Great Falls by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Great Falls ranges from 0.5 - 2.5 inches per month. June is typically the wettest month, when rainfall can reach 2.5 in. January is typically the driest time to visit Great Falls when rainfall is around 0.5 in.

Temperature in Great Falls by month

Plan your trip to Great Falls by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Great Falls, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 68.0 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 24.8 F).

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 June 12, 2025.
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Boarding

8.1

Entertainment

7.1

Overall

8.0

Comfort

7.8

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Boarding

8.1

Entertainment

7.1

Overall

8.0

Comfort

7.8

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Delta
8.0
Very good
7,950 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Boarding

8.1

Entertainment

7.1

Overall

8.0

Comfort

7.8

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Hawaiian Airlines
7.9
Good
2,494 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Boarding

8.1

Entertainment

7.1

Overall

8.0

Comfort

7.8

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
United Airlines
7.4
Good
8,790 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Boarding

8.1

Entertainment

7.1

Overall

8.0

Comfort

7.8

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

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.

  • What are the cheapest airlines flying from Philadelphia to Great Falls round-trip?

    According to our current data, Alaska Airlines ($452), Delta ($454), and Hawaiian Airlines ($493) offers the cheapest pricing from Philadelphia to Great Falls. Alaska Airlines is priced at 26% lower than the current average price of a flight leaving 3 months from now.

  • What are the cheapest airlines to fly from Philadelphia to Great Falls one-way?

    The cheapest airlines for a one-way flight from Philadelphia to Great Falls are Hawaiian Airlines ($231), United Airlines ($403), and Delta ($494).

  • Can I find deals for flights from Philadelphia to Great Falls that include hotel bookings?

    Yes. In addition to deals on Philadelphia to Great Falls flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Philadelphia to Great Falls?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Philadelphia to Great Falls.

  • Can I find deals for business class flights from Philadelphia to Great Falls?

    Yes. Cheapflights offers flight deals from Philadelphia to Great Falls by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

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

    Currently, January is the cheapest month in which you can book a flight from Philadelphia to Great Falls (average of $367). Flying from Philadelphia to Great Falls in July is currently the most expensive (average of $574). 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.

See more FAQs

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Alternative routes for Philadelphia to Great Falls

See prices for flight routes from nearby airports that may be better suited for you.
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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 2,558,603 searches. Data last updated June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$438Average$506FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$486Average$616FlexibilityNo cancel feeOn-time69%

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