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Cheap flights from San Francisco to Kos from $1,763

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from San Francisco to Kos departing on 3/4. 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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0 bags

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Find the cheapest flights from San Francisco to Kos

Cheap round-trip flights

Enter your travel dates to find the best prices.
Emirates Logo
3:40 pm - 5:05 pm
SFO
-
KGS
39h 25m
2 stops
Emirates Logo
2:20 pm - 1:50 pm
KGS
-
SFO
32h 30m
2 stops
$1,763Emirates
Wed, Mar 4 - Sun, Mar 8
Emirates Logo
3:40 pm - 5:05 pm
SFO
-
KGS
39h 25m
2 stops
Emirates Logo
2:20 pm - 1:50 pm
KGS
-
SFO
32h 30m
2 stops
$1,764Emirates
Wed, Mar 4 - Sun, Mar 8
Emirates Logo
3:40 pm - 5:05 pm
SFO
-
KGS
39h 25m
2 stops
Emirates Logo
2:20 pm - 1:50 pm
KGS
-
SFO
32h 30m
2 stops
$1,806Emirates
Wed, Mar 4 - Sun, Mar 8
Emirates Logo
4:45 pm - 4:10 pm
SFO
-
KGS
38h 25m
2 stops
Emirates Logo
12:35 pm - 2:00 pm
KGS
-
SFO
34h 25m
2 stops
$2,358Emirates
Sat, Mar 21 - Sat, Mar 28
Emirates Logo
4:45 pm - 4:10 pm
SFO
-
KGS
38h 25m
2 stops
Emirates Logo
1:05 pm - 2:00 pm
KGS
-
SFO
34h 55m
2 stops
$3,561Emirates
Mon, Mar 23 - Mon, Mar 30
Emirates Logo
4:45 pm - 4:10 pm
SFO
-
KGS
38h 25m
2 stops
Emirates Logo
1:05 pm - 2:00 pm
KGS
-
SFO
34h 55m
2 stops
$3,611Emirates
Sun, Mar 22 - Sun, Mar 29
Multiple Airlines Logo
10:15 pm - 9:55 pm
SFO
-
KGS
37h 40m
2 stops
Multiple Airlines Logo
4:30 pm - 1:50 pm
KGS
-
SFO
31h 20m
2 stops
$4,907Multiple Airlines
Sat, Jun 27 - Sat, Jul 11
Multiple Airlines Logo
10:15 pm - 9:55 pm
SFO
-
KGS
37h 40m
2 stops
Multiple Airlines Logo
4:30 pm - 1:50 pm
KGS
-
SFO
31h 20m
2 stops
$4,908Multiple Airlines
Sat, Jun 27 - Sat, Jul 11
Multiple Airlines Logo
2:40 pm - 7:45 pm
SFO
-
KGS
19h 05m
2 stops
Multiple Airlines Logo
8:30 pm - 4:15 pm
KGS
-
SFO
29h 45m
1 stop
$5,906Multiple Airlines
Fri, Jun 26 - Tue, Jul 7
SWISS Logo
7:35 pm - 2:30 pm
SFO
-
KGS
32h 55m
1 stop
SWISS Logo
8:30 pm - 4:15 pm
KGS
-
SFO
29h 45m
1 stop
$5,909SWISS
Fri, Jun 26 - Tue, Jul 7

Emirates flights from San Francisco to Kos

Our best Emirates deals on San Francisco to Kos flight tickets
Emirates
Mar 4
SFO3:40 pmSan Francisco
39h 25m
2 stops
KGS5:05 pmKos
Mar 8
KGS2:20 pmKos
32h 30m
2 stops
SFO1:50 pmSan Francisco
$1,763
Emirates
Mar 4
SFO3:40 pmSan Francisco
39h 25m
2 stops
KGS5:05 pmKos
Mar 8
KGS2:20 pmKos
32h 30m
2 stops
SFO1:50 pmSan Francisco
$1,764
Emirates
Mar 4
SFO3:40 pmSan Francisco
39h 25m
2 stops
KGS5:05 pmKos
Mar 8
KGS2:20 pmKos
32h 30m
2 stops
SFO1:50 pmSan Francisco
$1,806

SWISS flights from San Francisco to Kos

Our best SWISS deals on San Francisco to Kos flight tickets
SWISS
Jun 26
SFO7:35 pmSan Francisco
32h 55m
1 stop
KGS2:30 pmKos
Jul 7
KGS8:30 pmKos
29h 45m
1 stop
SFO4:15 pmSan Francisco
$5,909
SWISS
Jun 30
SFO7:35 pmSan Francisco
28h 35m
1 stop
KGS10:10 amKos
Jul 14
KGS8:30 pmKos
29h 45m
1 stop
SFO4:15 pmSan Francisco
$6,034
SWISS
Jun 30
SFO7:35 pmSan Francisco
28h 35m
1 stop
KGS10:10 amKos
Jul 14
KGS8:30 pmKos
33h 21m
2 stops
SFO7:51 pmSan Francisco
$6,044

momondo Fare Finder

 
Customize your flight search to find flights from San Francisco 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, momondo users made 832,500 searches. Data last updated February 7, 2026.
Use the filters below to find and compare flights from San Francisco to Kos that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

San FranciscoKos

SFO - KGS

SFOKGS

San Francisco

Wed 3/4

3:40 pm-5:05 pm

2 stops39h 25m

Kos

Sun 3/8

2:20 pm-1:50 pm

2 stops32h 30m

$1,763

San FranciscoKos

SFO - KGS

SFOKGS

San Francisco

Wed 3/4

3:40 pm-5:05 pm

2 stops39h 25m

Kos

Sun 3/8

2:20 pm-1:50 pm

2 stops32h 30m

$1,764

San FranciscoKos

SFO - KGS

SFOKGS

San Francisco

Wed 3/4

3:40 pm-5:05 pm

2 stops39h 25m

Kos

Sun 3/8

2:20 pm-1:50 pm

2 stops32h 30m

$1,806

San FranciscoKos

SFO - KGS

SFOKGS

San Francisco

Sat 3/21

4:45 pm-4:10 pm

2 stops38h 25m

Kos

Sat 3/28

12:35 pm-2:00 pm

2 stops34h 25m

$2,358

San FranciscoKos

SFO - KGS

SFOKGS

San Francisco

Mon 3/23

4:45 pm-4:10 pm

2 stops38h 25m

Kos

Mon 3/30

1:05 pm-2:00 pm

2 stops34h 55m

$3,561

San FranciscoKos

SFO - KGS

SFOKGS

San Francisco

Sun 3/22

4:45 pm-4:10 pm

2 stops38h 25m

Kos

Sun 3/29

1:05 pm-2:00 pm

2 stops34h 55m

$3,611

San FranciscoKos

SFO - KGS

SFOKGS

San Francisco

Sat 6/27

10:15 pm-9:55 pm

2 stops37h 40m

Kos

Sat 7/11

4:30 pm-1:50 pm

2 stops31h 20m

$4,907

San FranciscoKos

SFO - KGS

SFOKGS

San Francisco

Sat 6/27

10:15 pm-9:55 pm

2 stops37h 40m

Kos

Sat 7/11

4:30 pm-1:50 pm

2 stops31h 20m

$4,908

San FranciscoKos

SFO - KGS

SFOKGS

San Francisco

Fri 6/26

2:40 pm-7:45 pm

2 stops19h 05m

Kos

Tue 7/7

8:30 pm-4:15 pm

1 stop29h 45m

$5,906

San FranciscoKos

SFO - KGS

SFOKGS

San Francisco

Fri 6/26

7:35 pm-2:30 pm

1 stop32h 55m

Kos

Tue 7/7

8:30 pm-4:15 pm

1 stop29h 45m

$5,909

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 11 resultsSorted by cheapest first
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See travel insights to Kos from

How to get the cheapest flight ticket from San Francisco 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 airline that flies from San Francisco to Kos?

Emirates is the most popular carrier operating from San Francisco to Kos

When to book flights from San Francisco to Kos

Are you open to changing your travel dates? Check out the ideal times to fly from San Francisco to Kos according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap San Francisco to Kos (SFO to KGS) flight deals and tips

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

Fastest flight time

39h 25m

Direct flights

None
The fastest flight from San Francisco to Kos takes 39h 25m
There are no direct flights from San Francisco to Kos. There are no popular flight routes from San Francisco to Kos.
Search flight deals

  • How far is San Francisco to Kos by plane?

    There are 6921.3 mi between San Francisco and Kos. In terms of flight time, this usually takes a little over 39h 25m.

  • When did momondo last update prices for flights from San Francisco Airport to Kos Airport?

    Prices for flights from San Francisco Airport to Kos Airport refresh daily.

  • How old do you have to be to fly from San Francisco Airport to Kos Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from San Francisco Airport to Kos Airport.

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

    The necessary travel and health documents for your Kos Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Traveling to a place near Kos?

Book flights to Kos if you plan to visit one of these locations
Kardamena
Marmari

Why use momondo?

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

It is quick and easy to find San Francisco to Kos flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Kos that suits you.

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

All flight searches from San Francisco to Kos on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from San Francisco 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 San Francisco.

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

If you are not ready to book a flight from San Francisco to Kos now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Kos and let you know when they change.

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