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

According to our current data, United Airlines ($280), and Delta ($343) offers the cheapest pricing from Harrisburg to Great Falls.

What is the cheapest day to fly from Harrisburg to Great Falls?

Travelers seeking maximum savings on their Harrisburg to Great Falls flight should consider departing on Saturday mornings when fares are most often at their lowest. Saturday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

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 day to fly round-trip from Harrisburg to Great Falls?

Leaving on a Friday is a viable option for saving on travel. Heavily demanded days of the week can typically drive up the prices you see. Booking your travel for a less competitive day can save up to 80% on the overall cost on flights from Harrisburg to Great Falls.

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

When flying from Harrisburg to Great Falls, the time of day you fly usually plays a role in the price. Save by searching for a flight in the morning, which can drop the price by up to 28% versus a flight at noon.

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.

$582+ Cheap Flights from Harrisburg to Great Falls

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Cheap flight deals from Harrisburg to Great Falls

Round-trip from	$582 (Delta)

From Harrisburg to Great Falls

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Find flight deals from Harrisburg to Great Falls

Cheapest flights from Harrisburg to Great Falls
Explore the most affordable flight options available from Harrisburg to Great Falls. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 14, 2025.

Wed 12/105:58 pmMDT - GTF

2 stops30h 53mDelta

Sat 12/131:10 pmGTF - MDT

2 stops24h 59mDelta

Deal found 8/13

$582

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 August 14, 2025.

Wed 12/105:58 pmMDT - GTF

2 stops20h 31mDelta

Sat 12/135:30 amGTF - MDT

2 stops32h 39mDelta

Deal found 8/12

$582

Cheapflights Fare Finder

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

Wed 12/10

5:58 pm-12:29 pm

2 stops20h 31m

Great Falls

Sat 12/13

5:30 am-4:09 pm

2 stops32h 39m

$582

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/12

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.

Cheapflights Insights

Everything you need to know about your flight from Harrisburg to Great Falls

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

Currently, January is the cheapest month in which you can book a flight from Harrisburg to Great Falls (average of $367). Flying from Harrisburg 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.

Reviews of airlines servicing Great Falls

Read reviews from past customers who have flown Delta and 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.

Delta

8.0

Very good

7,980 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Delta

8.0

Very good

7,980 reviews

Delta

8.0

Very good

7,980 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

United Airlines

7.4

Good

8,916 reviews

Delta

8.0

Very good

7,980 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Related info for your journey

What are the cheapest airlines flying from Harrisburg to Great Falls round-trip?
According to our current data, United Airlines ($280), and Delta ($343) 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.
What is the cheapest month to book a flight from Harrisburg to Great Falls?
Currently, January is the cheapest month in which you can book a flight from Harrisburg to Great Falls (average of $367). Flying from Harrisburg 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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Top 2 airlines flying from Harrisburg to Great Falls

Airline	Cheapest	Average	Flexibility	On-time
United Airlines	Cheapest$280	Average$373	FlexibilityNo cancel fee	On-time69%
Delta	Cheapest$343	Average$433	FlexibilityNo cancel fee	On-timeN/A

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$582+ 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 12/10. 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

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Cheap flight deals from Harrisburg to Great Falls

Round-trip from

Find flight deals from Harrisburg to Great Falls

Cheapest flights from Harrisburg to Great FallsExplore the most affordable flight options available from Harrisburg to Great Falls. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 14, 2025.

Explore the most affordable flight options available from Harrisburg to Great Falls. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 14, 2025.

Cheapflights Fare Finder

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

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.

Cheapflights Insights

Everything you need to know about your flight from Harrisburg to Great Falls

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

Reviews of airlines servicing Great Falls

Read reviews from past customers who have flown Delta and 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.

What are the cheapest airlines flying 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?

What is the cheapest month to book a flight 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 2 airlines flying from Harrisburg to Great Falls

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Cheapest flights from Harrisburg to Great Falls
Explore the most affordable flight options available from Harrisburg to Great Falls. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 14, 2025.