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Kos

$1,781+ Cheap flights from San Francisco (SFO) 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 3/4. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — KGS
Jan 27 — Feb 31
Tue 1/27
Tue 2/3
1 adult, Economy
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Cheap flight deals from San Francisco to Kos

Best flights from San Francisco to Kos
Discover carefully curated flight deals from San Francisco to Kos that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 28, 2025.

This Emirates deal was found by Cheapflights users on 12/27. 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 3/43:40 pmSFO - KGS
2 stops39h 25mEmirates
Sun 3/812:35 pmKGS - SFO
2 stops34h 15mEmirates
Deal found 12/27$1,781
This FlightHub deal was found by Cheapflights users on 12/26. 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.
Fri 3/274:15 pmSFO - KGS
2 stops37h 30mMultiple Airlines
Sat 4/49:20 amKGS - SFO
2 stops22h 01mMultiple Airlines
Deal found 12/26$7,252
This Emirates deal was found by Cheapflights users on 12/26. 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.
Tue 2/103:40 pmSFO - KGS
2 stops63h 25mEmirates
Tue 2/1712:35 pmKGS - SFO
2 stops34h 15mEmirates
Deal found 12/26$3,909
This Emirates deal was found by Cheapflights users on 12/27. 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 2/113:40 pmSFO - KGS
2 stops39h 25mEmirates
Wed 2/1812:35 pmKGS - SFO
2 stops58h 15mEmirates
Deal found 12/27$4,744

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 December 28, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$1,781
(Emirates)
Provider with most accurate pricing for San Francisco-Kos flight deals.
Search Deals
Provider most trusted by Cheapflights users for San Francisco-Kos flights.
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From San Francisco to Kos
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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 December 28, 2025.
Use the filters below to find and compare flights from San Francisco to Kos that are best for you.

Fly from

San Francisco

Fly to

Kos

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

12:35 pm-1:50 pm

2 stops34h 15m

$1,781

San FranciscoKos

SFO - KGS

SFOKGS

San Francisco

Tue 2/10

3:40 pm-5:05 pm

2 stops63h 25m

Kos

Tue 2/17

12:35 pm-12:50 pm

2 stops34h 15m

$3,909

San FranciscoKos

SFO - KGS

SFOKGS

San Francisco

Wed 2/11

3:40 pm-5:05 pm

2 stops39h 25m

Kos

Wed 2/18

12:35 pm-12:50 pm

2 stops58h 15m

$4,744

San FranciscoKos

SFO - KGS

SFOKGS

San Francisco

Fri 3/27

4:15 pm-2:45 pm

2 stops37h 30m

Kos

Sat 4/4

9:20 am-9:21 pm

2 stops22h 01m

$7,252

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/27

Compare providers for flights from San Francisco to Kos

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from San Francisco to Kos in December.
ProviderPrice AccuracyTrust Score*
eDreamsPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on San Francisco-Kos flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on San Francisco-Kos flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from San Francisco-Kos flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on San Francisco-Kos flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for San Francisco-Kos flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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 39h 25m. 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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