$1,127+ 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 9/11. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — KGS
Oct 1 — Oct 81
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
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from San Francisco to Kos
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Best
Last-minute
Cheapest flights from San Francisco to KosExplore 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 September 1, 2026.
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 September 1, 2026.
This Cheapflightsfares deal was found by Cheapflights users on 8/31. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/117:00 am -
2 stops27h 35m
Wed 9/309:40 pm -
2 stops31h 28m
Deal found 8/31![Austrian Airlines logo]()
$1,127
This Justfly.com deal was found by Cheapflights users on 8/31. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/112:25 pm -
1 stop19h 35m
Wed 9/308:40 pm -
1 stop29h 35m
Deal found 8/31![SWISS logo]()
$1,196
This Mytrip deal was found by Cheapflights users on 8/30. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/248:30 am -
2 stops22h 15m
Fri 10/309:45 pm -
2 stops31h 50m
Deal found 8/30![Multiple Airlines logo]()
$1,221
This FlightHub deal was found by Cheapflights users on 8/31. 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 9/112:25 pm -
1 stop19h 35m
Wed 9/309:40 pm -
2 stops25h 00m
Deal found 8/31![Multiple Airlines logo]()
$1,222
This Emirates deal was found by Cheapflights users on 9/1. 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 10/165:05 pm -
2 stops38h 30m
Fri 10/236:05 pm -
2 stops53h 45m
Deal found 9/1![Emirates logo]()
$1,914
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 1, 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 1, 2026.
This Cheapflightsfares deal was found by Cheapflights users on 8/31. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/117:00 am -
2 stops27h 35m
Wed 9/309:40 pm -
2 stops31h 28m
Deal found 8/31![Austrian Airlines logo]()
$1,127
This Mytrip deal was found by Cheapflights users on 8/30. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/248:30 am -
2 stops22h 15m
Fri 10/309:45 pm -
2 stops31h 50m
Deal found 8/30![Multiple Airlines logo]()
$1,221
This Emirates deal was found by Cheapflights users on 8/31. 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 8/31![Emirates logo]()
$1,822
This Trip.com deal was found by Cheapflights users on 8/30. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/249:35 pm -
1 stop31h 35m
Fri 10/303:00 pm -
1 stop37h 45m
Deal found 8/30![British Airways logo]()
$1,914
This FlightHub deal was found by Cheapflights users on 8/31. 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 9/112:25 pm -
1 stop19h 35m
Wed 9/309:40 pm -
2 stops25h 00m
Deal found 8/31![Multiple Airlines logo]()
$1,222
This Emirates deal was found by Cheapflights users on 9/1. 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 10/165:05 pm -
2 stops38h 30m
Fri 10/236:05 pm -
2 stops53h 45m
Deal found 9/1![Emirates logo]()
$1,914
This Emirates deal was found by Cheapflights users on 8/29. 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 10/135:05 pm -
2 stops62h 30m
Tue 10/201:05 pm -
2 stops34h 55m
Deal found 8/29![Emirates logo]()
$5,930
Last-minute flights from San Francisco to KosDiscover last-minute flight deals from San Francisco to Kos. Data last updated September 1, 2026 and is based on user searches.
Discover last-minute flight deals from San Francisco to Kos. Data last updated September 1, 2026 and is based on user searches.
This Cheapflightsfares deal was found by Cheapflights users on 8/31. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/117:00 am -
2 stops27h 35m
Wed 9/309:40 pm -
2 stops31h 28m
Deal found 8/31![Austrian Airlines logo]()
$1,127
This Justfly.com deal was found by Cheapflights users on 8/31. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/112:25 pm -
1 stop19h 35m
Wed 9/308:40 pm -
1 stop29h 35m
Deal found 8/31![SWISS logo]()
$1,196
This FlightHub deal was found by Cheapflights users on 8/31. 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 9/112:25 pm -
1 stop19h 35m
Wed 9/309:40 pm -
2 stops25h 00m
Deal found 8/31![Multiple Airlines logo]()
$1,222
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 1, 2026.
Round-trip from | $1,127 (Cheapflightsfares) |
|---|
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 1, 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
Cheapest round-trip
San FranciscoKos
SFO San Francisco - KGS Kos
SFOKGS
San Francisco
Fri 9/11
7:00 am-8:35 pm
2 stops27h 35m
Kos
Wed 9/30
9:40 pm-7:08 pm
2 stops31h 28m
$1,127
San FranciscoKos
SFO San Francisco - KGS Kos
SFOKGS
San Francisco
Sat 10/24
8:30 am-4:45 pm
2 stops22h 15m
Kos
Fri 10/30
9:45 pm-8:35 pm
2 stops31h 50m
$1,221
Quickest round-trip
San FranciscoKos
SFO San Francisco - KGS Kos
SFOKGS
San Francisco
Fri 9/11
2:25 pm-8:00 pm
1 stop19h 35m
Kos
Wed 9/30
9:40 pm-12:40 pm
2 stops25h 00m
$1,222
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
$1,822
San FranciscoKos
SFO San Francisco - KGS Kos
SFOKGS
San Francisco
Sat 10/24
9:35 pm-2:10 pm
1 stop31h 35m
Kos
Fri 10/30
3:00 pm-7:45 pm
1 stop37h 45m
$1,914
San FranciscoKos
SFO San Francisco - KGS Kos
SFOKGS
San Francisco
Fri 10/16
5:05 pm-5:35 pm
2 stops38h 30m
Kos
Fri 10/23
6:05 pm-1:50 pm
2 stops53h 45m
$1,914
San FranciscoKos
SFO San Francisco - KGS Kos
SFOKGS
San Francisco
Tue 10/13
5:05 pm-5:35 pm
2 stops62h 30m
Kos
Tue 10/20
1:05 pm-2:00 pm
2 stops34h 55m
$5,930
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.
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.
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