$329+ Cheap flights from San Francisco (SFO) to Keflavik Intl (KEF)
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 9/16. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — KEF
Oct 8 — Oct 151
Round-trip
1 adult, Economy
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Find cheap flights from San Francisco to Keflavik Intl with Cheapflights
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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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 Keflavik Intl
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Best
Last-minute
One-way
Cheapest flights from San Francisco to Keflavik IntlExplore the most affordable flight options available from San Francisco to Keflavik Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 8, 2026.
Explore the most affordable flight options available from San Francisco to Keflavik Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 8, 2026.
This oojo deal was found by Cheapflights users on 9/4. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/176:00 am -
1 stop19h 55m
Thu 10/225:00 pm -
1 stop23h 25m
Deal found 9/4![Icelandair logo]()
$762
This oojo deal was found by Cheapflights users on 9/3. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/66:00 am -
1 stop16h 10m
Sat 12/125:00 pm -
1 stop14h 59m
Deal found 9/3![Icelandair logo]()
$763
This Scandinavian Airlines deal was found by Cheapflights users on 9/7. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/124:45 pm -
2 stops34h 40m
Wed 10/2811:35 am -
1 stop35h 15m
Deal found 9/7![Scandinavian Airlines logo]()
$765
This oojo deal was found by Cheapflights users on 9/3. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/226:00 am -
1 stop19h 55m
Tue 10/67:50 pm -
1 stop21h 52m
Deal found 9/3![Icelandair logo]()
$767
This Justfly.com deal was found by Cheapflights users on 9/3. 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 11/64:45 pm -
2 stops34h 55m
Wed 11/1111:35 am -
1 stop35h 15m
Deal found 9/3![Scandinavian Airlines logo]()
$768
This oojo deal was found by Cheapflights users on 9/4. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/252:39 pm -
1 stop34h 31m
Mon 10/55:00 pm -
1 stop23h 20m
Deal found 9/4![Icelandair logo]()
$772
This oojo deal was found by Cheapflights users on 9/6. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/194:45 pm -
1 stop33h 55m
Mon 10/2611:35 am -
1 stop35h 15m
Deal found 9/6![Scandinavian Airlines logo]()
$773
This oojo deal was found by Cheapflights users on 9/5. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/24:45 pm -
1 stop16h 35m
Wed 12/911:55 am -
2 stops34h 55m
Deal found 9/5![Scandinavian Airlines logo]()
$774
This oojo deal was found by Cheapflights users on 9/4. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/216:00 am -
1 stop19h 55m
Fri 9/257:55 pm -
1 stop21h 41m
Deal found 9/4![Icelandair logo]()
$775
This Cheapflightsfares deal was found by Cheapflights users on 9/5. 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.
Tue 9/297:50 am -
1 stop15h 15m
Wed 10/75:10 pm -
1 stop14h 49m
Deal found 9/5![Icelandair logo]()
$776
Best flights from San Francisco to Keflavik IntlDiscover carefully curated flight deals from San Francisco to Keflavik Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 8, 2026.
Discover carefully curated flight deals from San Francisco to Keflavik Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 8, 2026.
This Scandinavian Airlines deal was found by Cheapflights users on 9/7. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/124:45 pm -
2 stops34h 40m
Tue 10/276:05 pm -
1 stop28h 45m
Deal found 9/7![Scandinavian Airlines logo]()
$765
This Scandinavian Airlines deal was found by Cheapflights users on 9/4. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/265:45 pm -
2 stops34h 25m
Tue 11/311:55 am -
2 stops34h 55m
Deal found 9/4![Scandinavian Airlines logo]()
$771
This Scandinavian Airlines deal was found by Cheapflights users on 9/3. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/64:45 pm -
2 stops34h 55m
Tue 11/1711:55 am -
2 stops34h 55m
Deal found 9/3![Scandinavian Airlines logo]()
$787
This Scandinavian Airlines deal was found by Cheapflights users on 9/6. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/64:45 pm -
2 stops34h 55m
Wed 11/1111:55 am -
2 stops34h 55m
Deal found 9/6![Scandinavian Airlines logo]()
$787
This Scandinavian Airlines deal was found by Cheapflights users on 9/3. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/214:45 pm -
2 stops31h 20m
Thu 10/2911:55 am -
2 stops34h 55m
Deal found 9/3![Scandinavian Airlines logo]()
$787
This Scandinavian Airlines deal was found by Cheapflights users on 9/7. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/144:45 pm -
1 stop34h 05m
Fri 11/2011:55 am -
2 stops34h 55m
Deal found 9/7![Scandinavian Airlines logo]()
$797
This Scandinavian Airlines deal was found by Cheapflights users on 9/5. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/64:45 pm -
2 stops32h 05m
Tue 10/1311:15 am -
2 stops34h 25m
Deal found 9/5![Scandinavian Airlines logo]()
$801
This Scandinavian Airlines deal was found by Cheapflights users on 9/3. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/174:45 pm -
2 stops34h 40m
Fri 10/3011:55 am -
2 stops34h 55m
Deal found 9/3![Scandinavian Airlines logo]()
$801
This Scandinavian Airlines deal was found by Cheapflights users on 9/4. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/174:45 pm -
2 stops34h 40m
Thu 10/2211:15 am -
2 stops34h 25m
Deal found 9/4![Scandinavian Airlines logo]()
$801
This Scandinavian Airlines deal was found by Cheapflights users on 9/7. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/297:10 am -
2 stops19h 30m
Tue 10/66:55 pm -
2 stops26h 45m
Deal found 9/7![Scandinavian Airlines logo]()
$837
This Scandinavian Airlines deal was found by Cheapflights users on 9/7. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/184:45 pm -
1 stop16h 30m
Fri 10/306:05 pm -
2 stops36h 21m
Deal found 9/7![Scandinavian Airlines logo]()
$883
Last-minute flights from San Francisco to Keflavik IntlDiscover last-minute flight deals from San Francisco to Keflavik Intl. Data last updated September 8, 2026 and is based on user searches.
Discover last-minute flight deals from San Francisco to Keflavik Intl. Data last updated September 8, 2026 and is based on user searches.
This oojo deal was found by Cheapflights users on 9/4. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/202:39 pm -
1 stop34h 31m
Mon 10/55:00 pm -
1 stop24h 42m
Deal found 9/4![Icelandair logo]()
$777
This oojo deal was found by Cheapflights users on 9/4. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/216:00 am -
1 stop19h 55m
Fri 9/257:55 pm -
1 stop21h 41m
Deal found 9/4![Icelandair logo]()
$775
This oojo deal was found by Cheapflights users on 9/3. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/226:00 am -
1 stop19h 55m
Tue 10/67:50 pm -
1 stop21h 52m
Deal found 9/3![Icelandair logo]()
$767
This oojo deal was found by Cheapflights users on 9/4. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/252:39 pm -
1 stop34h 31m
Mon 10/55:00 pm -
1 stop23h 20m
Deal found 9/4![Icelandair logo]()
$772
This Cheapflightsfares deal was found by Cheapflights users on 9/5. 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.
Tue 9/297:50 am -
1 stop15h 15m
Wed 10/75:10 pm -
1 stop14h 49m
Deal found 9/5![Icelandair logo]()
$776
This Kiwi.com deal was found by Cheapflights users on 9/7. 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.
Tue 10/64:45 pm -
1 stop17h 00m
Wed 10/1410:30 am -
1 stop35h 10m
Deal found 9/7![Scandinavian Airlines logo]()
$778
This Scandinavian Airlines deal was found by Cheapflights users on 9/7. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/124:45 pm -
2 stops34h 40m
Mon 10/266:05 pm -
1 stop28h 45m
Deal found 9/7![Scandinavian Airlines logo]()
$765
This Scandinavian Airlines deal was found by Cheapflights users on 9/7. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/124:45 pm -
2 stops34h 40m
Wed 10/2811:55 am -
2 stops34h 55m
Deal found 9/7![Scandinavian Airlines logo]()
$769
This Kiwi.com deal was found by Cheapflights users on 9/5. 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 10/154:45 pm -
1 stop17h 00m
Wed 10/2811:55 am -
2 stops34h 55m
Deal found 9/5![Scandinavian Airlines logo]()
$763
This oojo deal was found by Cheapflights users on 9/4. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/176:00 am -
1 stop19h 55m
Thu 10/225:00 pm -
1 stop23h 25m
Deal found 9/4![Icelandair logo]()
$762
This Scandinavian Airlines deal was found by Cheapflights users on 9/6. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/194:45 pm -
2 stops34h 40m
Mon 10/2611:55 am -
2 stops34h 55m
Deal found 9/6![Scandinavian Airlines logo]()
$771
One-way flights from San Francisco to Keflavik IntlSearch for one-way flight options from San Francisco to Keflavik Intl. Find affordable one-way fares based on user searches. Data last updated September 8, 2026.
Search for one-way flight options from San Francisco to Keflavik Intl. Find affordable one-way fares based on user searches. Data last updated September 8, 2026.
This Kiwi.com deal was found by Cheapflights users on 9/4. 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.
Wed 9/161:00 pm -
1 stop11h 40m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/4![WestJet logo]()
$329
This Kiwi.com deal was found by Cheapflights users on 9/4. 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 9/146:00 am -
1 stop18h 40m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/4![WestJet logo]()
$335
This Kiwi.com deal was found by Cheapflights users on 9/5. 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.
Wed 12/95:20 pm -
2 stops31h 35m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/5![Multiple Airlines logo]()
$355
This American Airlines deal was found by Cheapflights users on 9/5. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/98:35 pm -
1 stop30h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/5![American Airlines logo]()
$364
This United Airlines deal was found by Cheapflights users on 9/5. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/812:45 am -
2 stops25h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/5![United Airlines logo]()
$371
This Kiwi.com deal was found by Cheapflights users on 9/7. 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.
Tue 10/611:00 am -
3 stops48h 55m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/7![Multiple Airlines logo]()
$389
This Kiwi.com deal was found by Cheapflights users on 9/7. 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.
Tue 11/179:40 pm -
3 stops39h 35m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/7![Multiple Airlines logo]()
$421
This Kiwi.com deal was found by Cheapflights users on 9/4. 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 9/1711:17 am -
2 stops37h 23m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/4![Multiple Airlines logo]()
$432
This Kiwi.com deal was found by Cheapflights users on 9/5. 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.
Wed 10/141:00 pm -
3 stops43h 30m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/5![Multiple Airlines logo]()
$436
This KAYAK deal was found by Cheapflights users on 9/5. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/95:00 am -
1 stop21h 00m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/5![Brussels Airlines logo]()
$440
Find flight deals from San Francisco to Keflavik Intl
Discover tips and strategies to find the most affordable flight options for your journey from San Francisco (SFO) to Keflavik Intl (KEF). 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 8, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $762 (oojo) |
One-way from | $329 (Kiwi.com) |
Popular in | April |
Cheapest in | October |
Average price | $909 |
Cheapflights Fare Finder
Customize your flight search to find flights from San Francisco to Keflavik Intl 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 8, 2026.
Use the filters below to find and compare flights from San Francisco to Reykjavik Keflavik Intl Airport that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
San FranciscoReykjavik
SFO San Francisco - KEF Reykjavik Keflavik Intl
SFOKEF
San Francisco
Wed 12/9
5:20 pm-8:55 am
2 stops31h 35m
Reykjavik Keflavik Intl
Wed 12/31
12:00 am-4:00 pm
Nonstop0h 00m
$355
San FranciscoReykjavik
SFO San Francisco - KEF Reykjavik Keflavik Intl
SFOKEF
San Francisco
Tue 11/17
9:40 pm-9:15 pm
3 stops39h 35m
Reykjavik Keflavik Intl
Wed 12/31
12:00 am-4:00 pm
Nonstop0h 00m
$421
Quickest round-trip
San FranciscoReykjavik
SFO San Francisco - KEF Reykjavik Keflavik Intl
SFOKEF
San Francisco
Wed 12/9
5:00 am-10:00 am
1 stop21h 00m
Reykjavik Keflavik Intl
Wed 12/31
12:00 am-4:00 pm
Nonstop0h 00m
$440
San FranciscoReykjavik
SFO San Francisco - KEF Reykjavik Keflavik Intl
SFOKEF
San Francisco
Wed 12/9
4:47 pm-10:00 am
3 stops57h 13m
Reykjavik Keflavik Intl
Wed 12/31
12:00 am-4:00 pm
Nonstop0h 00m
$452
San FranciscoReykjavik
SFO San Francisco - KEF Reykjavik Keflavik Intl
SFOKEF
San Francisco
Tue 10/6
2:40 pm-11:25 pm
1 stop25h 45m
Reykjavik Keflavik Intl
Wed 12/31
12:00 am-4:00 pm
Nonstop0h 00m
$452
San FranciscoReykjavik
SFO San Francisco - KEF Reykjavik Keflavik Intl
SFOKEF
San Francisco
Sat 2/13
11:24 am-9:15 am
2 stops37h 51m
Reykjavik Keflavik Intl
Wed 12/31
12:00 am-4:00 pm
Nonstop0h 00m
$455
San FranciscoReykjavik
SFO San Francisco - KEF Reykjavik Keflavik Intl
SFOKEF
San Francisco
Sat 10/24
11:59 pm-10:00 am
2 stops27h 01m
Reykjavik Keflavik Intl
Wed 12/31
12:00 am-4:00 pm
Nonstop0h 00m
$465
San FranciscoReykjavik
SFO San Francisco - KEF Reykjavik Keflavik Intl
SFOKEF
San Francisco
Mon 10/12
4:45 pm-10:25 am
2 stops34h 40m
Reykjavik Keflavik Intl
Tue 10/27
6:05 pm-3:50 pm
1 stop28h 45m
$765
San FranciscoReykjavik
SFO San Francisco - KEF Reykjavik Keflavik Intl
SFOKEF
San Francisco
Mon 10/26
5:45 pm-11:10 am
2 stops34h 25m
Reykjavik Keflavik Intl
Tue 11/3
11:55 am-2:50 pm
2 stops34h 55m
$771
San FranciscoReykjavik
SFO San Francisco - KEF Reykjavik Keflavik Intl
SFOKEF
San Francisco
Fri 11/6
4:45 pm-11:40 am
2 stops34h 55m
Reykjavik Keflavik Intl
Tue 11/17
11:55 am-2:50 pm
2 stops34h 55m
$787
Showing 1-10 of 18 resultsSorted by cheapest first
Compare providers for flights from San Francisco to Keflavik Intl
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 Keflavik Intl in September.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on San Francisco-Reykjavik Keflavik Intl Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on San Francisco-Reykjavik Keflavik Intl Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from San Francisco-Reykjavik Keflavik Intl Airport flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on San Francisco-Reykjavik Keflavik Intl Airport flights, Cheapflights users trust FlightHub the most. FlightHub 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-Reykjavik Keflavik Intl Airport 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 Keflavik Intl
Have a flexible travel schedule? Discover the best time to fly to Keflavik Intl from San Francisco with our price prediction graph.
SFO-KEF
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.
Cheapflights Insights
Everything you need to know about your flight from San Francisco to Reykjavik Keflavik Intl Airport
How far ahead should I book a flight from San Francisco to Reykjavik Keflavik Intl Airport?
Booking 31 days in advance of your planned departure date is, on average, the best time to get cheap flights from San Francisco to Reykjavik Keflavik Intl Airport. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
What is the cheapest month to book a flight from San Francisco to Reykjavik Keflavik Intl Airport?
Currently, October is the cheapest month in which you can book a flight from San Francisco to Reykjavik Keflavik Intl Airport (average of $765). Flying from San Francisco to Reykjavik Keflavik Intl Airport in April is currently the most expensive (average of $1,148). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
How much does it cost to fly round-trip from San Francisco to Reykjavik Keflavik Intl Airport?
Airfare is below average for this route at the moment.
San Francisco to Reykjavik Keflavik Intl Airport flights typically cost between $818 and $1,023 in October.The cheapest round-trip price found within the last 5 days was $762 on Icelandair (Oct 17-Oct 22).
Reviews of airlines servicing Keflavik Intl
Get insights into the airlines that provide service to Keflavik Intl. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Keflavik Intl. Reviews last updated September 8, 2026.
See what other customers who have flown with Alaska Airlines,Scandinavian Airlines, andUnited Airlines from San Francisco to Reykjavik Keflavik Intl Airport have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Comfort
7.8
Overall
7.9
Crew
8.5
Entertainment
7.0
Boarding
8.1
Food
7.0
Reviews
1 / 20
10.0
ExcellentFranzi,Mar 2026
SFO - PDX
Comfort
7.8
Overall
7.9
Crew
8.5
Entertainment
7.0
Boarding
8.1
Food
7.0
Reviews
1 / 20
10.0
ExcellentFranzi,Mar 2026
SFO - PDX
Comfort
7.8
Overall
7.9
Crew
8.5
Entertainment
7.0
Boarding
8.1
Food
7.0
Reviews
1 / 20
10.0
ExcellentFranzi,Mar 2026
SFO - PDX
Comfort
7.8
Overall
7.9
Crew
8.5
Entertainment
7.0
Boarding
8.1
Food
7.0
Reviews
1 / 20
10.0
ExcellentFranzi,Mar 2026
SFO - PDX
Comfort
7.8
Overall
7.9
Crew
8.5
Entertainment
7.0
Boarding
8.1
Food
7.0
Reviews
1 / 20
10.0
ExcellentFranzi,Mar 2026
SFO - PDX
Comfort
7.8
Overall
7.9
Crew
8.5
Entertainment
7.0
Boarding
8.1
Food
7.0
Reviews
1 / 20
10.0
ExcellentFranzi,Mar 2026
SFO - PDX
Related info for your journey
Find useful and relevant information for your journey from San Francisco to Keflavik Intl. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near Reykjavik Keflavik Intl Airport?
Book flights to Reykjavik Keflavik Intl Airport if you plan to visit one of these locationsKeflavik
Hveragerdi
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Other flights to Keflavik Intl
Explore flights to Keflavik Intl departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on September 8, 2026.
San Francisco and Keflavik Intl flights
Browse other San Francisco and Keflavik Intl flight options. Last updated on September 8, 2026.
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Top 6 airlines flying from San Francisco to Keflavik Intl
Discover the top 6 airlines that operate flights from San Francisco to Keflavik Intl. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 7,457,451 searches. Data last updated September 8, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$169 | Average$904 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$243 | Average$1,000 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$636 | Average$994 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$655 | Average$803 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$662 | Average$960 | FlexibilityNo cancel fee | On-time60% | |
| Cheapest$765 | Average$1,032 | FlexibilityNo cancel fee | On-time76% |