Cheap flights from Sioux Falls, SD to Great Falls, MT

Flights starting at $205. Choose between Allegiant Air, Alaska Airlines, or Frontier Airlines to find the best price.

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The most popular airlines for this route are Allegiant Air, Alaska Airlines, Frontier Airlines, United Airlines, and Spirit Airlines. Sioux Falls and Great Falls have 21 direct flights per week.

Check-in for a flight from Sioux Falls to Great Falls

NameCarrier codeIATA CodePassport needed during bookingOnline check-in available
Allegiant AirAAYG4NoOpens 24 days before flight
Closes 1 hours before flight
Alaska AirlinesASAASNoOpens 24 days before flight
Closes 1 hours before flight
Frontier AirlinesFFTF9NoOpens 24 days before flight
Closes 1 hours before flight
United AirlinesUALUAYesNo
Spirit AirlinesNKSNKNoOpens 24 days before flight
Closes 1 hours before flight

Weather in Great Falls

Average Weather

MonthAverage monthly max temperatureAverage monthly min temperature
January0°C-7°C
February0°C-8°C
March6°C-3°C
April11°C0°C
May17°C5°C
June22°C9°C
July29°C14°C
August28°C14°C
September22°C9°C
October13°C2°C
November5°C-3°C
December0°C-7°C
Hottest Month
29°C
July
Coldest month
-8°C
February
Sunny days
271
days per year
Snow days
20
days per year

14 day forecast

Thursday
21 Mar
81%
6°C-4°C
28 Mar
81%
-3°C-7°C
Friday
22 Mar
72%
0°C-5°C
29 Mar
29%
-1°C-13°C
Saturday
23 Mar
78%
-2°C-6°C
30 Mar
73%
0°C-3°C
Sunday
24 Mar
78%
-4°C-10°C
31 Mar
79%
0°C-2°C
Monday
25 Mar
88%
-4°C-13°C
1 Apr
69%
0°C-6°C
Tuesday
26 Mar
31%
-2°C-15°C
2 Apr
3°C-6°C
Wednesday
27 Mar
69%
-1°C-12°C
3 Apr
89%
1°C-2°C

Frequently asked questions

What are the most popular routes to and from Sioux Falls?
What are the most popular routes to and from Great Falls?
What airports are near Sioux Falls?
What airports are near Great Falls?
Is it possible to combine flights, buses, and trains in one itinerary when traveling between Sioux Falls and Great Falls?
What is Virtual Interlining and how do I use it?
Which airlines fly between Sioux Falls and Great Falls?
When's the best time to travel between Sioux Falls and Great Falls?
What flights operate between Sioux Falls and Great Falls?
How many airports are there near Sioux Falls?
How many airports are there near Great Falls?
What time do nonstop (direct) flights between Sioux Falls and Great Falls depart?
What time do nonstop (direct) flights between Sioux Falls and Great Falls arrive?
What time do flights between Sioux Falls and Great Falls depart?
What time do flights between Sioux Falls and Great Falls arrive?

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