Cheap flights from Sioux City, IA to Seattle, WA

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How much do flights to Seattle cost?

Most popular airline

Key info about flying to Seattle

Depart from
Sioux Gateway
Arrive to
Seattle–Tacoma International
Average flights per week
10
Flight distance
Worth visiting
Lulu Island

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Check-in for a flight from Sioux City to Seattle

NameCarrier codeIATA CodePassport needed during booking
United AirlinesUALUAYes

Weather in Seattle

Average Weather

MonthAverage monthly max temperatureAverage monthly min temperature
January7°C2°C
February8°C1°C
March10°C3°C
April13°C4°C
May18°C8°C
June21°C10°C
July25°C13°C
August26°C14°C
September22°C11°C
October15°C7°C
November10°C4°C
December6°C1°C
Hottest Month
26°C
August
Coldest month
1°C
February
Sunny days
252
days per year
Snow days
5
days per year

14 day forecast

Wednesday
4 Dec
6°C1°C
11 Dec
82%
7°C2°C
Thursday
5 Dec
9°C1°C
12 Dec
88%
10°C6°C
Friday
6 Dec
11°C8°C
13 Dec
87%
7°C5°C
Saturday
7 Dec
89%
10°C6°C
14 Dec
85%
6°C4°C
Sunday
8 Dec
89%
9°C3°C
15 Dec
6°C1°C
Monday
9 Dec
7°C2°C
16 Dec
5°C0°C
Tuesday
10 Dec
6°C3°C
17 Dec
5°C-1°C
Book your trip to arrive at Seattle–Tacoma International, or Kenmore Air Harbor Seaplane Base. The most popular airline for this route is United Airlines. Sioux City and Seattle have 10 direct flights per week.

Frequently asked questions

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