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$517+ Cheap flights from Harrisburg to Great Falls (MDT - 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 7/23. Fares are subject to change and may not be available on all flights or dates of travel.
MDT — GTF
Jun 20 — Jun 271
Sat 6/20
Sat 6/27
1 adult, Economy
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Find cheap flights from Harrisburg to Great Falls with Cheapflights

1. Tell us where you want to go

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3. Compare prices and book

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Cheap 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 May 21, 2026.

This Delta deal was found by Cheapflights users on 5/19. 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 8/116:24 pm
MDT
-
GTF
2 stops30h 24m
Delta
Tue 8/186:28 pm
GTF
-
MDT
2 stops26h 53m
Delta
Deal found 5/19$565
This Delta deal was found by Cheapflights users on 5/19. 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 8/116:24 pm
MDT
-
GTF
2 stops30h 24m
Delta
Sun 8/166:28 pm
GTF
-
MDT
2 stops20h 40m
Delta
Deal found 5/19$686
This Delta deal was found by Cheapflights users on 5/19. 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 8/116:24 pm
MDT
-
GTF
2 stops25h 18m
Delta
Thu 8/205:40 am
GTF
-
MDT
2 stops15h 41m
Delta
Deal found 5/19$716
This Delta deal was found by Cheapflights users on 5/19. 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.
Mon 8/105:15 pm
MDT
-
GTF
2 stops26h 27m
Delta
Wed 8/195:40 am
GTF
-
MDT
2 stops15h 41m
Delta
Deal found 5/19$721
This Delta deal was found by Cheapflights users on 5/19. 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 8/155:20 pm
MDT
-
GTF
2 stops31h 28m
Delta
Tue 8/186:28 pm
GTF
-
MDT
2 stops26h 53m
Delta
Deal found 5/19$723
This United Airlines deal was found by Cheapflights users on 5/19. 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 8/117:59 pm
MDT
-
GTF
2 stops27h 13m
United Airlines
Sat 8/156:15 am
GTF
-
MDT
2 stops25h 22m
United Airlines
Deal found 5/19$724
This Delta deal was found by Cheapflights users on 5/16. 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 6/136:22 pm
MDT
-
GTF
2 stops25h 22m
Delta
Sun 6/216:25 pm
GTF
-
MDT
2 stops27h 30m
Delta
Deal found 5/16$732
This United Airlines deal was found by Cheapflights users on 5/19. 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.
Mon 8/107:59 pm
MDT
-
GTF
2 stops27h 13m
United Airlines
Sat 8/156:15 am
GTF
-
MDT
2 stops25h 22m
United Airlines
Deal found 5/19$737
This United Airlines deal was found by Cheapflights users on 5/16. 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 6/137:59 pm
MDT
-
GTF
2 stops27h 35m
United Airlines
Sat 6/2012:30 pm
GTF
-
MDT
1 stop6h 59m
United Airlines
Deal found 5/16$743
This United Airlines deal was found by Cheapflights users on 5/19. 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 8/147:59 pm
MDT
-
GTF
2 stops27h 13m
United Airlines
Thu 8/206:15 am
GTF
-
MDT
2 stops25h 22m
United Airlines
Deal found 5/19$757
This United Airlines deal was found by Cheapflights users on 5/18. 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 9/105:54 pm
MDT
-
GTF
2 stops29h 18m
United Airlines
Mon 9/142:25 pm
GTF
-
MDT
2 stops28h 28m
United Airlines
Deal found 5/18$771

Find flight deals from Harrisburg to Great Falls

Discover tips and strategies to find the most affordable flight options for your journey from Harrisburg (MDT) 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 May 21, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$565
(Delta)

One-way from

$517
(United Airlines)
Provider with most accurate pricing for Harrisburg-Great Falls flight deals.
Search Deals
Provider most trusted by Cheapflights users for Harrisburg-Great Falls flights.
Search Deals
From Harrisburg to Great Falls
Search Deals
One-way flight from Harrisburg to Great Falls
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Harrisburg 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 May 21, 2026.
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

Cheapest round-trip

HarrisburgGreat Falls

MDT - GTF

MDTGTF

Harrisburg

Tue 8/11

7:59 pm-9:12 pm

2 stops27h 13m

Great Falls

Sat 8/15

6:15 am-9:37 am

2 stops25h 22m

$724

HarrisburgGreat Falls

MDT - GTF

MDTGTF

Harrisburg

Mon 6/15

7:59 pm-9:34 pm

2 stops27h 35m

Great Falls

Sat 6/20

12:30 pm-9:29 pm

1 stop6h 59m

$743

HarrisburgGreat Falls

MDT - GTF

MDTGTF

Harrisburg

Sat 6/13

7:59 pm-9:34 pm

2 stops27h 35m

Great Falls

Tue 6/23

6:15 am-9:40 am

2 stops25h 25m

$783

HarrisburgGreat Falls

MDT - GTF

MDTGTF

Harrisburg

Thu 7/23

7:59 pm-9:34 pm

2 stops27h 35m

Great Falls

Tue 7/28

6:15 am-9:40 am

2 stops25h 25m

$803
Quickest round-trip

HarrisburgGreat Falls

MDT - GTF

MDTGTF

Harrisburg

Tue 10/27

10:35 am-10:30 pm

2 stops13h 55m

Great Falls

Sat 10/31

6:15 am-6:28 pm

2 stops10h 13m

$815

HarrisburgGreat Falls

MDT - GTF

MDTGTF

Harrisburg

Mon 6/15

7:59 pm-9:34 pm

2 stops27h 35m

Great Falls

Mon 6/22

6:15 am-7:48 pm

2 stops35h 33m

$869
Cheapest one-way
Quickest one-way

HarrisburgGreat Falls

MDT - GTF

MDTGTF

Harrisburg

Thu 7/23

7:59 pm-9:34 pm

2 stops27h 35m

$517

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/16

Sorted by cheapest first

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 May.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust 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 FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Harrisburg-Great Falls flight deals on Cheapflights vs. FlightHub >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 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 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.

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?

    United Airlines can get you from Harrisburg to Great Falls in just under 27h 13m. Your travel time can differ by up to . The distance from Harrisburg to Great Falls is about 1779 mi.

  • 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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