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$1,086+ Cheap flights from Seattle (SEA) to Kos (KGS)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 5/5. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — KGS
dic. 13 — dic. 201
sáb. 12/13
sáb. 12/20
1 adult, Economy
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Find flight deals from Seattle to Kos

Best flights from Seattle to Kos
Discover carefully curated flight deals from Seattle to Kos that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated noviembre 13, 2025.

This Trip.com deal was found by Cheapflights users on 11/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 5/52:10 pmSEA - KGS
3 stops36h 25mMultiple Airlines
mar. 5/129:20 amKGS - SEA
3 stops41h 39mMultiple Airlines
Deal found 11/13$1,086
This Emirates deal was found by Cheapflights users on 11/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Emirates is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 4/15:15 pmSEA - KGS
2 stops38h 20mEmirates
dom. 4/51:05 pmKGS - SEA
2 stops34h 20mEmirates
Deal found 11/10$1,817

Cheap flight deals from Seattle to Kos

Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) to Kos (KGS). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated noviembre 13, 2025.

Round-trip from

$1,086
(Trip.com)
From Seattle/Tacoma Intl to Kos
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Cheapflights Fare Finder

 
Customize your flight search to find flights from Seattle to Kos that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated noviembre 13, 2025.
Use the filters below to find and compare flights from Seattle to Kos that are best for you.

Fly from

Seattle

Fly to

Kos

Route

Depart

Return

Price

SeattleKos

SEA - KGS

SEAKGS

Seattle/Tacoma Intl

mar. 5/5

2:10 pm-12:35 pm

3 stops36h 25m

Kos

mar. 5/12

9:20 am-4:59 pm

3 stops41h 39m

$1,086

SeattleKos

SEA - KGS

SEAKGS

Seattle/Tacoma Intl

mié. 4/1

5:15 pm-5:35 pm

2 stops38h 20m

Kos

dom. 4/5

1:05 pm-1:25 pm

2 stops34h 20m

$1,817

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/13

Best time to book a flight from Seattle to Kos

Have a flexible travel schedule? Discover the best time to fly to Kos from Seattle with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Related info for your journey

Find useful and relevant information for your journey from Seattle to Kos. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Seattle to Kos?

    For as low as $1,817, Emirates can have you in Kos from Seattle in 38h 20m. The distance from Seattle to Kos is about 6312 mi.

  • Can I find deals for flights from Seattle to Kos that include hotel bookings?

    Yes. In addition to deals on Seattle to Kos flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Seattle to Kos?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Seattle to Kos.

  • Can I find deals for business class flights from Seattle to Kos?

    Yes. Cheapflights offers flight deals from Seattle to Kos by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

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