How long is the flight from Harrisburg to Great Falls?

United Airlines can get you from Harrisburg to Great Falls in just under 9h 18m. Your travel time can differ by up to . The distance from Harrisburg to Great Falls is about 1779 mi.

What is the cheapest airline to fly from Harrisburg to Great Falls round-trip?

According to our current data, United Airlines ($280), offers the cheapest pricing from Harrisburg to Great Falls.

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.

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).

What is the cheapest time of day to fly from MDT to GTF?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Harrisburg to Great Falls as you normally would.

Most accurate provider : When it comes to deals on Harrisburg-Great Falls flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Harrisburg-Great Falls flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Harrisburg-Great Falls flight searches over the past month and is updated monthly.

Most trusted provider : When it comes to deals on Harrisburg-Great Falls flights, Cheapflights users trust eDreams the most. eDreams 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 Harrisburg-Great Falls flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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

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

How can I find direct flights from Harrisburg to Great Falls?

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

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

Yes. Cheapflights offers flight deals from Harrisburg 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.

$595+ Flights from Harrisburg to Great Falls

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Cheap flight deals from Harrisburg to Great Falls

Best flights from Harrisburg to Great Falls
Discover carefully curated flight deals from Harrisburg to Great Falls that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 14, 2025.

Sat 1/246:30 amMDT - GTF

2 stops9h 18mUnited Airlines

Tue 1/272:29 pmGTF - MDT

2 stops24h 05mUnited Airlines

Deal found 12/12

$595

Last-minute flights from Harrisburg to Great Falls
Discover last-minute flight deals from Harrisburg to Great Falls. Data last updated December 14, 2025 and is based on user searches.

Sat 1/246:30 amMDT - GTF

2 stops9h 18mUnited Airlines

Tue 1/272:29 pmGTF - MDT

2 stops24h 05mUnited Airlines

Deal found 12/12

$595

Find flight deals from Harrisburg to Great Falls

Most accurate provider	eDreams 3 stars
Most trusted provider	eDreams 3 stars
Round-trip from	$555 (United Airlines)

Provider with most accurate pricing for Harrisburg-Great Falls flight deals.

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Provider most trusted by Cheapflights users for Harrisburg-Great Falls flights.

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From Harrisburg to Great Falls

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Use the filters below to find and compare flights from Harrisburg to Great Falls that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

HarrisburgGreat Falls

MDT - GTF

MDTGTF

Harrisburg

Sat 1/24

6:30 am-1:48 pm

2 stops9h 18m

Great Falls

Tue 1/27

2:29 pm-4:34 pm

2 stops24h 05m

$595

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/12

Compare providers for flights from Harrisburg to Great Falls

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Harrisburg to Great Falls in December.

Provider	Price Accuracy	Trust Score*
Expedia	Price Accuracy2 stars	Trust Score*3 stars
FlightHub	Price Accuracy3 stars	Trust Score*1 star
eDreams	Price Accuracy3 stars	Trust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

Most accurate provider: When it comes to deals on Harrisburg-Great Falls flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Harrisburg-Great Falls flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Harrisburg-Great Falls flight searches over the past month and is updated monthly.
Most trusted provider: When it comes to deals on Harrisburg-Great Falls flights, Cheapflights users trust eDreams the most. eDreams 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 Harrisburg-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 Harrisburg to Great Falls

Have a flexible travel schedule? Discover the best time to fly to Great Falls from Harrisburg 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.

Reviews of airlines servicing Great Falls

Read reviews from past customers who have flown United Airlines from Harrisburg to Great Falls. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

United Airlines

7.4

Good

9,092 reviews

Reviews

1 / 20

10.0

Excellent

Sunderesh,Dec 2025

AUS - EWR

Smooth flight from Austin to Newark. The crew was friendly.

United Airlines

7.4

Good

9,092 reviews

United Airlines

7.4

Good

9,092 reviews

Reviews

1 / 20

10.0

Excellent

Sunderesh,Dec 2025

AUS - EWR

Smooth flight from Austin to Newark. The crew was friendly.

Related info for your journey

How long is the flight from Harrisburg to Great Falls?
United Airlines can get you from Harrisburg to Great Falls in just under 9h 18m. Your travel time can differ by up to . The distance from Harrisburg to Great Falls is about 1779 mi.
What is the cheapest airline to fly from Harrisburg to Great Falls round-trip?
According to our current data, United Airlines ($280), offers the cheapest pricing from Harrisburg to Great Falls.
Can I find deals for flights from Harrisburg to Great Falls that include hotel bookings?
Yes. In addition to deals on Harrisburg to Great Falls flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Harrisburg to Great Falls?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Harrisburg to Great Falls.
Can I find deals for business class flights from Harrisburg to Great Falls?
Yes. Cheapflights offers flight deals from Harrisburg 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.

See more FAQs

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Top airline flying from Harrisburg to Great Falls

Airline	Cheapest	Average	Flexibility	On-time
United Airlines	Cheapest$280	Average$373	FlexibilityNo cancel fee	On-time69%

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$595+ Cheap flights from Harrisburg to Great Falls (MDT - 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 1/24. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Harrisburg to Great Falls with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Harrisburg to Great Falls

Best flights from Harrisburg to Great FallsDiscover carefully curated flight deals from Harrisburg to Great Falls that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 14, 2025.

Discover carefully curated flight deals from Harrisburg to Great Falls that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 14, 2025.

Find flight deals from Harrisburg to Great Falls

Most accurate provider

Most trusted provider

Round-trip from

Cheapflights Fare Finder

Use the filters below to find and compare flights from Harrisburg to Great Falls that are best for you.

Compare providers for flights from Harrisburg 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 Harrisburg to Great Falls in December.

Best time to book a flight from Harrisburg to Great Falls

Have a flexible travel schedule? Discover the best time to fly to Great Falls from Harrisburg with our price prediction graph.

Reviews of airlines servicing Great Falls

Read reviews from past customers who have flown United Airlines from Harrisburg to Great Falls. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from Harrisburg to Great Falls. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

How long is the flight from Harrisburg to Great Falls?

What is the cheapest airline to fly from Harrisburg to Great Falls round-trip?

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

How can I find direct flights from Harrisburg to Great Falls?

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

Traveling to a place near Great Falls?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Harrisburg to Great Falls

See prices for flight routes from nearby airports that may be better suited for you.

Top airline flying from Harrisburg to Great Falls

100% Free

Book with Flexibility

Travel Smart

Best flights from Harrisburg to Great Falls
Discover carefully curated flight deals from Harrisburg to Great Falls that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 14, 2025.