When did momondo last update prices for flights from Seattle/Tacoma Intl Airport to Kos Airport?

Prices for flights from Seattle/Tacoma Intl Airport to Kos Airport were last updated today.

How old do you have to be to fly from Seattle/Tacoma Intl Airport to Kos Airport?

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Seattle/Tacoma Intl Airport to Kos Airport.

What documentation or ID do you need to fly to Kos Airport?

The travel and health documents you'll need for your trip to Kos Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Kos Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$791 Cheap Flights from Seattle to Kos in 2025

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10:00 am - 2:30 pmSEA-KGS

42h 30m2 stops

3:55 pm - 2:50 pmKGS-SEA

32h 55m1 stop

$791SWISS

Find Deal

vie., ago. 22 - vie., ago. 29

10:00 am - 2:30 pmSEA-KGS

42h 30m2 stops

3:55 pm - 10:20 pmKGS-SEA

40h 25m2 stops

$801SWISS

Find Deal

vie., ago. 22 - vie., ago. 29

2:29 pm - 7:40 pmSEA-KGS

43h 11m2 stops

3:15 pm - 2:55 pmKGS-SEA

33h 40m1 stop

$997SWISS

Find Deal

dom., ago. 24 - dom., ago. 31

10:50 am - 8:00 pmSEA-KGS

23h 10m2 stops

8:30 pm - 6:36 pmKGS-SEA

32h 06m2 stops

$1,030SWISS

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vie., oct. 17 - mar., oct. 21

10:50 am - 8:00 pmSEA-KGS

23h 10m2 stops

8:30 pm - 6:36 pmKGS-SEA

32h 06m2 stops

$1,113SWISS

Find Deal

vie., oct. 17 - mar., oct. 21

2:29 pm - 7:40 pmSEA-KGS

43h 11m2 stops

3:15 pm - 8:54 pmKGS-SEA

39h 39m2 stops

$1,177SWISS

Find Deal

dom., ago. 24 - dom., ago. 31

10:50 am - 8:00 pmSEA-KGS

23h 10m2 stops

8:30 pm - 6:36 pmKGS-SEA

32h 06m2 stops

$1,405SWISS

Find Deal

vie., oct. 17 - mar., oct. 21

SWISS flights from Seattle to Kos

Our best SWISS deals on Seattle to Kos flight tickets

SWISS

Aug 22

SEA10:00 amSeattle/Tacoma Intl

42h 30m

2 stops

KGS2:30 pmKos

Aug 29

KGS3:55 pmKos

32h 55m

1 stop

SEA2:50 pmSeattle/Tacoma Intl

$791

Find similar

SWISS

Aug 22

SEA10:00 amSeattle/Tacoma Intl

42h 30m

2 stops

KGS2:30 pmKos

Aug 29

KGS3:55 pmKos

40h 25m

2 stops

SEA10:20 pmSeattle/Tacoma Intl

$801

Find similar

SWISS

Aug 24

SEA2:29 pmSeattle/Tacoma Intl

43h 11m

2 stops

KGS7:40 pmKos

Aug 31

KGS3:15 pmKos

33h 40m

1 stop

SEA2:55 pmSeattle/Tacoma Intl

$997

Find similar

How to get the cheapest flight ticket from Seattle to Kos

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest day to depart on your flight to Kos?

The cheapest day to depart from Seattle to Kos is on a Tuesday when prices can be found for as low as $1,160. On the other hand, Wednesday is the most expensive day to depart from Seattle because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $1,232.

What is the cheapest time of day to depart on your flight to Kos?

Flying to Kos from Seattle at noon is the least expensive time of day to depart. momondo users have found prices as low as $1,138 when looking at flights departing at noon. If you have a flexible travel schedule, then try to avoid flying in the afternoon when prices are $1,182 on average. Flights to Kos from Seattle in the afternoon are generally more expensive because this time of day is more convenient for travelers’ schedules.

When to book flights from Seattle to Kos

Are you open to changing your travel dates? Check out the ideal times to fly from Seattle to Kos according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Seattle to Kos (SEA to KGS) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Seattle to Kos

Best Price Found	$791
Fastest flight time	23h 10m
Direct flights	None
Airports in Kos	1 airport

The best flight deal from Seattle to Kos found on momondo in the last 72 hours is $791

The fastest flight from Seattle to Kos takes 23h 10m

There are no direct flights from Seattle to Kos. Popular non-direct route for this connection is Seattle/Tacoma Intl Airport - Kos Airport.

There is 1 airport near Kos: Kos (KGS)

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How far is Seattle/Tacoma Intl to Kos by plane?
There are 6300.1 mi between Seattle/Tacoma Intl and Kos. In terms of flight time, this usually takes a little over 23h 10m.
When did momondo last update prices for flights from Seattle/Tacoma Intl Airport to Kos Airport?
Prices for flights from Seattle/Tacoma Intl Airport to Kos Airport were last updated today.
How old do you have to be to fly from Seattle/Tacoma Intl Airport to Kos Airport?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Seattle/Tacoma Intl Airport to Kos Airport.
What documentation or ID do you need to fly to Kos Airport?
The travel and health documents you'll need for your trip to Kos Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Kos Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

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Why use momondo?

Why should I use momondo to find a flight deal from Seattle to Kos?

Finding the right flight to Kos from Seattle is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Kos quick and easy, saving you time and money.

Can I find flights from Seattle to Kos with flexible booking policies on momondo?

Flights from Seattle to Kos with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Seattle to Kos?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Kos from Seattle.

I’m not ready to book a flight from Seattle to Kos right now. Can momondo alert me if prices change?

Price alerts on flights to Kos from Seattle are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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Cheap flights from Seattle to Kos from $791

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Seattle to Kos departing on 8/22. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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Filter for what you want

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SWISS flights from Seattle to Kos

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How to get the cheapest flight ticket from Seattle to Kos

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest day to depart on your flight to Kos?

What is the cheapest time of day to depart on your flight to Kos?

When to book flights from Seattle to Kos

Cheap Seattle to Kos (SEA to KGS) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Seattle to Kos

Best Price Found

Fastest flight time

Direct flights

Airports in Kos

How far is Seattle/Tacoma Intl to Kos by plane?

When did momondo last update prices for flights from Seattle/Tacoma Intl Airport to Kos Airport?

How old do you have to be to fly from Seattle/Tacoma Intl Airport to Kos Airport?

What documentation or ID do you need to fly to Kos Airport?

Traveling to a place near Kos?

Why use momondo?

Why should I use momondo to find a flight deal from Seattle to Kos?

Can I find flights from Seattle to Kos with flexible booking policies on momondo?

How can momondo help me find flights from Seattle to Kos?

I’m not ready to book a flight from Seattle to Kos right now. Can momondo alert me if prices change?

An easier way to manage your Kos trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Greece

Airports servicing South Aegean