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Kos

$559+ Cheap flights from San Francisco (SFO) to Kos (KGS)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 6/27. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — KGS
Apr 25 — May 21
Sat 4/25
Sat 5/2
1 adult, Economy
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Cheap flight deals from San Francisco to Kos

Cheapest flights from San Francisco to Kos
Explore the most affordable flight options available from San Francisco to Kos. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 26, 2026.

This Emirates deal was found by Cheapflights users on 3/25. 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.
Sun 9/65:05 pm
SFO
-
KGS
2 stops62h 25m
Emirates
Thu 9/101:05 pm
KGS
-
SFO
2 stops34h 55m
Emirates
Deal found 3/25$1,767
This Emirates deal was found by Cheapflights users on 3/21. 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.
Wed 5/65:05 pm
SFO
-
KGS
2 stops38h 30m
Emirates
Wed 5/136:05 pm
KGS
-
SFO
2 stops53h 55m
Emirates
Deal found 3/21$3,573
This Emirates deal was found by Cheapflights users on 3/24. 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.
Fri 5/85:05 pm
SFO
-
KGS
2 stops38h 30m
Emirates
Fri 5/156:05 pm
KGS
-
SFO
2 stops29h 55m
Emirates
Deal found 3/24$3,623
This Emirates deal was found by Cheapflights users on 3/25. 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.
Sat 5/95:05 pm
SFO
-
KGS
2 stops62h 30m
Emirates
Sat 5/161:05 pm
KGS
-
SFO
2 stops58h 55m
Emirates
Deal found 3/25$6,105
This BusinessClass deal was found by Cheapflights users on 3/22. 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 BusinessClass is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/262:40 pm
SFO
-
KGS
2 stops32h 30m
Multiple Airlines
Sat 7/119:40 am
KGS
-
SFO
2 stops20h 57m
Multiple Airlines
Deal found 3/22$6,497
This BusinessClass deal was found by Cheapflights users on 3/22. 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 BusinessClass is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/2712:39 pm
SFO
-
KGS
2 stops21h 16m
British Airways
Fri 7/101:45 pm
KGS
-
SFO
1 stop34h 05m
British Airways
Deal found 3/22$6,690
This Kiwi.com deal was found by Cheapflights users on 3/22. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/277:35 pm
SFO
-
KGS
1 stop28h 35m
Multiple Airlines
Sat 7/119:25 pm
KGS
-
SFO
2 stops25h 15m
Multiple Airlines
Deal found 3/22$6,778
This Kiwi.com deal was found by Cheapflights users on 3/22. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/252:40 pm
SFO
-
KGS
2 stops20h 10m
Multiple Airlines
Sun 7/123:15 pm
KGS
-
SFO
1 stop35h 00m
Multiple Airlines
Deal found 3/22$6,790
This FlightHub deal was found by Cheapflights users on 3/22. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/277:35 pm
SFO
-
KGS
1 stop28h 35m
SWISS
Sun 7/123:15 pm
KGS
-
SFO
1 stop35h 00m
SWISS
Deal found 3/22$6,803
This Kiwi.com deal was found by Cheapflights users on 3/22. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/294:30 pm
SFO
-
KGS
1 stop16h 35m
Multiple Airlines
Tue 7/1411:55 pm
KGS
-
SFO
2 stops47h 55m
Multiple Airlines
Deal found 3/22$6,833

Find flight deals from San Francisco to Kos

Discover tips and strategies to find the most affordable flight options for your journey from San Francisco (SFO) 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 March 26, 2026.

Round-trip from

$3,573
(Emirates)
From San Francisco to Kos
Search Deals

Cheapflights 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, Cheapflights users made 2,558,603 searches. Data last updated March 26, 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

Cheapest round-trip

San FranciscoKos

SFO - KGS

SFOKGS

San Francisco

Wed 5/6

5:05 pm-5:35 pm

2 stops38h 30m

Kos

Wed 5/13

6:05 pm-2:00 pm

2 stops53h 55m

$3,573

San FranciscoKos

SFO - KGS

SFOKGS

San Francisco

Fri 5/8

5:05 pm-5:35 pm

2 stops38h 30m

Kos

Fri 5/15

6:05 pm-2:00 pm

2 stops29h 55m

$3,623

San FranciscoKos

SFO - KGS

SFOKGS

San Francisco

Sat 5/9

5:05 pm-5:35 pm

2 stops62h 30m

Kos

Sat 5/16

1:05 pm-2:00 pm

2 stops58h 55m

$6,105

San FranciscoKos

SFO - KGS

SFOKGS

San Francisco

Wed 6/24

7:35 pm-3:10 pm

1 stop33h 35m

Kos

Wed 7/8

6:10 pm-1:15 pm

2 stops29h 05m

$9,470
Quickest round-trip

San FranciscoKos

SFO - KGS

SFOKGS

San Francisco

Wed 6/24

3:15 pm-9:55 pm

2 stops20h 40m

Kos

Thu 7/9

11:25 am-2:30 pm

1 stop37h 05m

$13,095

San FranciscoKos

SFO - KGS

SFOKGS

San Francisco

Tue 6/23

3:15 pm-9:55 pm

2 stops20h 40m

Kos

Fri 7/10

11:10 am-2:30 pm

1 stop37h 20m

$13,721

San FranciscoKos

SFO - KGS

SFOKGS

San Francisco

Tue 6/23

3:15 pm-9:55 pm

2 stops20h 40m

Kos

Sun 7/12

11:15 am-2:30 pm

1 stop37h 15m

$13,721

San FranciscoKos

SFO - KGS

SFOKGS

San Francisco

Tue 6/23

3:15 pm-9:55 pm

2 stops20h 40m

Kos

Thu 7/9

11:25 am-2:30 pm

1 stop37h 05m

$13,760
Cheapest one-way
Quickest one-way

San FranciscoKos

SFO - KGS

SFOKGS

San Francisco

Sat 6/27

7:35 pm-10:35 pm

2 stops41h 00m

$559

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/25

Sorted by cheapest first

Best time to book a flight from San Francisco to Kos

Have a flexible travel schedule? Discover the best time to fly to Kos from San Francisco 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 San Francisco 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 San Francisco to Kos?

    Emirates can get you from San Francisco to Kos in just under 38h 30m. Your travel time can differ by up to . The distance between San Francisco and Kos is about 6932 mi.

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

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

  • How can I find direct flights from San Francisco to Kos?

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

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

    Yes. Cheapflights offers flight deals from San Francisco 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.

See more FAQs

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