Cheap flights from Seattle, WA to Sioux Falls, SD

Flights starting at £58. Choose between United Airlines, Alaska Airlines, or Allegiant Air to find the best price.

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Tips to know when travelling to Sioux Falls

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Travelers usually depart from Seattle–Tacoma International, or Kenmore Air Harbor Seaplane Base when they travel from Seattle to Sioux Falls. The most popular airlines for this route are United Airlines, Alaska Airlines, Allegiant Air, Frontier Airlines, and Spirit Airlines. Seattle and Sioux Falls have 71 direct flights per week.

Check-in for a flight from Seattle to Sioux Falls

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

Weather in Sioux Falls

Average Weather

MonthAverage monthly max temperatureAverage monthly min temperature
January-4°C-12°C
February-1°C-11°C
March6°C-3°C
April13°C2°C
May19°C9°C
June26°C15°C
July28°C17°C
August27°C16°C
September24°C12°C
October14°C5°C
November7°C-1°C
December-1°C-8°C
Hottest Month
28°C
July
Coldest month
-12°C
January
Sunny days
267
days per year
Snow days
19
days per year

14 day forecast

Monday
18 Mar
5°C-10°C
25 Mar
84%
-2°C-5°C
Tuesday
19 Mar
13°C1°C
26 Mar
-2°C-10°C
Wednesday
20 Mar
81%
3°C-5°C
27 Mar
28%
0°C-17°C
Thursday
21 Mar
69%
1°C-4°C
28 Mar
1°C-3°C
Friday
22 Mar
69%
-2°C-9°C
29 Mar
86%
3°C1°C
Saturday
23 Mar
-5°C-13°C
30 Mar
85%
1°C0°C
Sunday
24 Mar
69%
-4°C-7°C
31 Mar
35%
-3°C-7°C

Frequently asked questions

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