$1,821+ 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 1/29. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — KGS
Oct 29 — Nov 51
Round-trip
1 adult, Economy
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1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
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Best flights from San Francisco to KosDiscover 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 September 29, 2026.
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 September 29, 2026.
This Emirates deal was found by Cheapflights users on 9/25. 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.
Fri 1/293:40 pm -
2 stops42h 25m
Tue 2/22:05 pm -
2 stops32h 45m
Deal found 9/25![Emirates logo]()
$1,821
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 September 29, 2026.
Round-trip from | $1,821 (Emirates) |
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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 7,457,451 searches. Data last updated September 29, 2026.
Use the filters below to find and compare flights from San Francisco to Kos that are best for you.
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Route
Depart
Return
Cheapest round-trip
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San FranciscoKos
SFO San Francisco - KGS Kos
SFOKGS
San Francisco
Fri 1/29
3:40 pm-8:05 pm
2 stops42h 25m
Kos
Tue 2/2
2:05 pm-12:50 pm
2 stops32h 45m
$1,821
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.
SFO-KGS
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.
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