Cheap flights from Ottawa, Canada to Seattle, WA

Flights starting at CA$271. Choose between Porter Airlines, Alaska Airlines, or WestJet to find the best price.

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Tips to know when travelling to Seattle

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Book your trip to arrive at Seattle–Tacoma International, or Kenmore Air Harbor Seaplane Base. The most popular airlines for this route are Porter Airlines, Alaska Airlines, WestJet, Air Canada, and United Airlines. Ottawa and Seattle have 316 direct flights per week.

Check-in for a flight from Ottawa to Seattle

NameCarrier codeIATA CodePassport needed during booking
Porter AirlinesPOEPDNo
Alaska AirlinesASAASNo
WestJetWJAWSNo
Air CanadaACAACYes
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
251
days per year
Snow days
5
days per year

14 day forecast

Wednesday
30 Oct
88%
9°C7°C
6 Nov
12°C6°C
Thursday
31 Oct
85%
12°C7°C
7 Nov
88%
16°C8°C
Friday
1 Nov
83%
10°C6°C
8 Nov
84%
10°C8°C
Saturday
2 Nov
88%
9°C6°C
9 Nov
83%
10°C8°C
Sunday
3 Nov
88%
11°C6°C
10 Nov
88%
10°C7°C
Monday
4 Nov
11°C4°C
11 Nov
87%
9°C7°C
Tuesday
5 Nov
87%
10°C6°C
12 Nov
80%
10°C7°C

Frequently asked questions

What are the most popular routes to and from Ottawa?
What are the most popular routes to and from Seattle?
What airports are near Ottawa?
What airports are near Seattle?
Which airlines fly between Ottawa and Seattle?
When's the best time to travel between Ottawa and Seattle?
What flights operate between Ottawa and Seattle?
How many airports are there near Ottawa?
How many airports are there near Seattle?
What time do nonstop (direct) flights between Ottawa and Seattle depart?
What time do nonstop (direct) flights between Ottawa and Seattle arrive?
What time do flights between Ottawa and Seattle depart?
What time do flights between Ottawa and Seattle arrive?

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Flights from Ottawa

Flights to Seattle

Popular routes

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