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

Currently priced at $271, United Airlines will fly you from Sioux Falls to Great Falls and back. In addition to United Airlines, many other airlines offer competitively priced options for your trip. United Airlines is currently priced 27% below the average price you’ll pay for this route.

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

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

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

Travelers seeking maximum savings on their Sioux Falls to Great Falls flight should consider departing on Thursday evenings when fares are most often at their lowest. Thursday evenings 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 Sioux Falls to Great Falls?

Flights from Sioux Falls to Great Falls are found to be more expensive on Wednesday. This shouldn't discourage you from searching as you can still find great deals by being flexible with your options. Use our search form to find deals on tickets to Great Falls.

What is the cheapest month to fly from Sioux Falls to Great Falls?

January is one of the best times of the year to fly to Great Falls from Sioux Falls. Prices for January average $373 per person but you can even find prices for as low as $240. The most expensive prices can be found in the month of July. Opting for a January flight can save you 53% on your journey compared to booking in July

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

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

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

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

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

Yes. Cheapflights offers flight deals from Sioux Falls 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.

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Cheap flight deals from Sioux Falls to Great Falls

Popular in	July
Cheapest in	January
Average price	$362

Highest demand for flights based on searches. 14% potential increase in price ($65 potential increase over avg. RT price).

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Cheapest flight prices on average. 6% potential price decrease ($22 potential savings vs. average RT price).

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Average for round-trip flights in September 2025

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Best time to book a flight from Sioux Falls to Great Falls

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Estimated round-trip price

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

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

Unlike at noon, when flights are generally more expensive, you can save up to 24% on flights from Sioux Falls to Great Falls by exploring options for tickets in the morning.

Reviews of airlines servicing Great Falls

Get a feel of what it's like to fly with United Airlines from Sioux Falls to Great Falls by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

United Airlines

7.4

Good

8,937 reviews

Reviews

1 / 20

2.0

Mediocre

Deb,Jan 2025

MKE - ORD

It was terrible! So much to say, but in a nutshell we used vouchers from United because our last trip with them was awful with many mishaps and errors made. Unfortunately, this trip was even worse!

United Airlines

7.4

Good

8,937 reviews

United Airlines

7.4

Good

8,937 reviews

Reviews

1 / 20

2.0

Mediocre

Deb,Jan 2025

MKE - ORD

It was terrible! So much to say, but in a nutshell we used vouchers from United because our last trip with them was awful with many mishaps and errors made. Unfortunately, this trip was even worse!

Related info for your journey

What is the cheapest airline to fly from Sioux Falls to Great Falls round-trip?
Currently priced at $271, United Airlines will fly you from Sioux Falls to Great Falls and back. In addition to United Airlines, many other airlines offer competitively priced options for your trip. United Airlines is currently priced 27% below the average price you’ll pay for this route.
Can I find deals for flights from Sioux Falls to Great Falls that include hotel bookings?
Yes. In addition to deals on Sioux Falls to Great Falls flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Sioux Falls to Great Falls?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Sioux Falls to Great Falls.
Can I find deals for business class flights from Sioux Falls to Great Falls?
Yes. Cheapflights offers flight deals from Sioux Falls 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 Sioux Falls to Great Falls?
Currently, January is the cheapest month in which you can book a flight from Sioux Falls to Great Falls (average of $367). Flying from Sioux Falls 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.

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Top airline flying from Sioux Falls to Great Falls

Airline	Cheapest	Average	Flexibility	On-time
United Airlines	Cheapest$271	Average$388	FlexibilityNo cancel fee	On-time69%

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Cheap flights from Sioux Falls to Great Falls (FSD - GTF)

Find cheap flights from Sioux Falls 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 Sioux Falls to Great Falls

Popular in

Cheapest in

Average price

Best time to book a flight from Sioux Falls to Great Falls

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

Cheapflights Insights

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

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

Reviews of airlines servicing Great Falls

Get a feel of what it's like to fly with United Airlines from Sioux Falls to Great Falls by reading reviews from past customers. Users have also rated airlines 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 Sioux Falls 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 is the cheapest airline to fly from Sioux Falls to Great Falls round-trip?

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

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

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

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

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Top airline flying from Sioux Falls to Great Falls

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