$99 Find deals on international flights to Seattle - Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight to Seattle departing on 9/21. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Flight Deals

Book Cheap International Flights Deals to Seattle

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights to Seattle that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip international flight deals to Seattle

Sun, Aug 16 - Thu, Aug 20
Air Canada Logo
3:05 pm - 6:32 pm
YYC
-
SEA
4h 27m
1 stop
Air Canada Logo
3:00 pm - 10:00 pm
SEA
-
YYC
6h 00m
1 stop
$248Air Canada
Fri, Sep 4 - Sun, Sep 6
WestJet Logo
5:50 pm - 6:45 pm
YYC
-
SEA
1h 55mnonstop
WestJet Logo
7:35 pm - 10:15 pm
SEA
-
YYC
1h 40mnonstop
$249WestJet
Mon, Aug 17 - Fri, Aug 28
Multiple Airlines Logo
10:25 am - 10:39 am
GDL
-
SEA
25h 14m
1 stop
Multiple Airlines Logo
12:35 pm - 6:35 pm
SEA
-
GDL
5h 00mnonstop
$309Multiple Airlines
Sat, Aug 15 - Sat, Aug 22
Frontier Logo
7:59 am - 5:51 pm
GDL
-
SEA
10h 52m
1 stop
Frontier Logo
11:54 am - 1:39 am
SEA
-
GDL
12h 45m
1 stop
$315Frontier
Tue, Oct 20 - Tue, Oct 27
Frontier Logo
7:59 am - 6:26 pm
GDL
-
SEA
11h 27m
1 stop
Frontier Logo
12:46 pm - 1:39 am
SEA
-
GDL
11h 53m
1 stop
$316Frontier
Mon, Aug 17 - Wed, Aug 26
Multiple Airlines Logo
10:25 am - 10:39 am
GDL
-
SEA
25h 14m
1 stop
Multiple Airlines Logo
12:35 pm - 6:35 pm
SEA
-
GDL
5h 00mnonstop
$319Multiple Airlines
Thu, Aug 27 - Thu, Aug 27
Volaris Logo
12:00 pm - 7:59 pm
MEX
-
SEA
8h 59m
1 stop
Volaris Logo
11:00 pm - 9:45 am
SEA
-
MEX
9h 45m
1 stop
$372Volaris
Mon, Aug 10 - Sat, Aug 22
Volaris Logo
8:10 am - 7:59 pm
MEX
-
SEA
12h 49m
1 stop
Volaris Logo
12:35 pm - 10:45 pm
SEA
-
MEX
9h 10m
1 stop
$373Volaris
Fri, Oct 23 - Sun, Nov 1
United Airlines Logo
8:45 am - 11:26 pm
SJO
-
SEA
15h 41m
1 stop
United Airlines Logo
11:59 pm - 11:25 am
SEA
-
SJO
9h 26m
1 stop
$556United Airlines
Thu, Oct 15 - Sun, Oct 18
United Airlines Logo
4:40 pm - 10:54 am
PUJ
-
SEA
21h 14m
1 stop
United Airlines Logo
10:58 pm - 3:30 pm
SEA
-
PUJ
13h 32m
1 stop
$729United Airlines
Booking Insights

KAYAK's insights & trends for flights to Seattle

Get data-powered insights and trends for flights to Seattle to help you find the cheapest flights, the best time to fly and much more.

What are the most popular airlines flying to Seattle?

The most popular airline among KAYAK users flying to Seattle is Alaska Airlines, followed by Frontier and Delta.

Alaska Airlines
Alaska Airlines
#1 most popular
Frontier
Frontier
#2 most popular
Delta
Delta
#3 most popular
United Airlines
United Airlines
#4 most popular
Find deals

Good to know

Low seasonJanuary
Cheapest flight$99
Best time to beat the crowds with an average 15% drop in price.
Most popular time to fly with an average 20% increase in price.
Flight from San Francisco to Seattle

FAQs for booking Worldwide to Seattle flights

  • How does KAYAK find such low prices on flights from Worldwide to Seattle?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Worldwide to Seattle.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Worldwide to Seattle?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Seattle from Worldwide is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Worldwide to Seattle?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Seattle with an airline and back to Worldwide with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Worldwide to Seattle?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Seattle from Worldwide up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Traveling to a place near Seattle?

Book flights to Seattle if you plan to visit one of these locations
Lynnwood
Centralia
Fife
Lakewood
Mukilteo
Lacey
Westport
Woodinville
Poulsbo
Aberdeen
Edmonds
DuPont
Shoreline
Monroe
Castle Rock
Edgewood

Everything you need to know for your flight to Seattle

Information on the airport you'll fly into in Seattle

Seattle (SEA)