$260+ Cheap flights from San Francisco (SFO) to Keflavik Intl (KEF)
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 8/3. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — KEF
Jul 11 — Jul 181
Round-trip
1 adult, Economy
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Find cheap flights from San Francisco to Keflavik Intl with Cheapflights
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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 June 11, 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 June 11, 2026.
This Alaska Airlines deal was found by Cheapflights users on 6/7. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/206:03 am
SFO
- KEF
1 stop19h 57m
Alaska Airlines
Mon 7/2712:45 pm
KEF
- SFO
1 stop27h 35m
Alaska Airlines
Deal found 6/7![Alaska Airlines logo]()
$651
This Kiwi.com deal was found by Cheapflights users on 6/7. 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.
Mon 7/202:20 pm
SFO
- KEF
1 stop11h 40m
Multiple Airlines
Tue 7/289:00 am
KEF
- SFO
1 stop34h 00m
Multiple Airlines
Deal found 6/7![Multiple Airlines logo]()
$653
This Kiwi.com deal was found by Cheapflights users on 6/6. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/112:20 pm
SFO
- KEF
1 stop11h 40m
Multiple Airlines
Wed 8/269:00 am
KEF
- SFO
2 stops19h 00m
Multiple Airlines
Deal found 6/6![Multiple Airlines logo]()
$666
This Alaska Airlines deal was found by Cheapflights users on 6/6. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/126:03 am
SFO
- KEF
1 stop19h 57m
Alaska Airlines
Wed 7/2212:45 pm
KEF
- SFO
1 stop14h 07m
Alaska Airlines
Deal found 6/6![Alaska Airlines logo]()
$668
This Kiwi.com deal was found by Cheapflights users on 6/9. 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 8/112:20 pm
SFO
- KEF
1 stop11h 40m
Multiple Airlines
Tue 8/259:00 am
KEF
- SFO
2 stops16h 23m
Multiple Airlines
Deal found 6/9![Multiple Airlines logo]()
$672
This Mytrip deal was found by Cheapflights users on 6/7. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/176:00 am
SFO
- KEF
1 stop18h 40m
WestJet
Wed 8/269:00 am
KEF
- SFO
1 stop19h 55m
WestJet
Deal found 6/7![WestJet logo]()
$674
This Mytrip deal was found by Cheapflights users on 6/8. 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.
Tue 8/186:00 am
SFO
- KEF
1 stop18h 40m
WestJet
Tue 8/259:00 am
KEF
- SFO
1 stop14h 40m
WestJet
Deal found 6/8![WestJet logo]()
$676
This Mytrip deal was found by Cheapflights users on 6/9. 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.
Tue 8/251:00 pm
SFO
- KEF
1 stop11h 40m
Multiple Airlines
Tue 9/19:00 am
KEF
- SFO
2 stops16h 32m
Multiple Airlines
Deal found 6/9![Multiple Airlines logo]()
$677
This Kiwi.com deal was found by Cheapflights users on 6/7. 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 7/710:23 pm
SFO
- KEF
2 stops27h 37m
Multiple Airlines
Tue 7/219:00 am
KEF
- SFO
1 stop34h 00m
Multiple Airlines
Deal found 6/7![Multiple Airlines logo]()
$678
This Kiwi.com deal was found by Cheapflights users on 6/9. 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 8/112:20 pm
SFO
- KEF
1 stop11h 40m
Multiple Airlines
Mon 8/249:00 am
KEF
- SFO
1 stop34h 00m
Multiple Airlines
Deal found 6/9![Multiple Airlines logo]()
$679
This Mytrip deal was found by Cheapflights users on 6/9. 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.
Tue 8/187:30 pm
SFO
- KEF
3 stops29h 10m
Multiple Airlines
Wed 8/269:00 am
KEF
- SFO
2 stops22h 07m
Multiple Airlines
Deal found 6/9![Multiple Airlines logo]()
$680
This Mytrip deal was found by Cheapflights users on 6/8. 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.
Tue 8/187:30 pm
SFO
- KEF
3 stops29h 10m
Multiple Airlines
Tue 8/259:00 am
KEF
- SFO
1 stop19h 55m
Multiple Airlines
Deal found 6/8![Multiple Airlines logo]()
$681
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 June 11, 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 June 11, 2026.
This Alaska Airlines deal was found by Cheapflights users on 6/6. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/126:03 am
SFO
- KEF
1 stop19h 57m
Alaska Airlines
Wed 7/2212:45 pm
KEF
- SFO
1 stop14h 07m
Alaska Airlines
Deal found 6/6![Alaska Airlines logo]()
$668
This Scandinavian Airlines deal was found by Cheapflights users on 6/6. 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 8/284:45 pm
SFO
- KEF
2 stops34h 05m
Scandinavian Airlines
Tue 9/811:15 am
KEF
- SFO
2 stops34h 25m
Scandinavian Airlines
Deal found 6/6![Scandinavian Airlines logo]()
$869
This KLM deal was found by Cheapflights users on 6/10. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/1212:42 pm
SFO
- KEF
1 stop11h 18m
KLM
Wed 7/2211:25 am
KEF
- SFO
2 stops17h 34m
KLM
Deal found 6/10![KLM logo]()
$998
This United Airlines deal was found by Cheapflights users on 6/7. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/2010:19 am
SFO
- KEF
2 stops15h 31m
United Airlines
Mon 7/2711:30 am
KEF
- SFO
2 stops15h 40m
United Airlines
Deal found 6/7![United Airlines logo]()
$1,069
This Alaska Airlines deal was found by Cheapflights users on 6/8. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/241:54 pm
SFO
- KEF
1 stop12h 06m
Alaska Airlines
Thu 8/2712:45 pm
KEF
- SFO
1 stop15h 45m
Alaska Airlines
Deal found 6/8![Alaska Airlines logo]()
$704
This Scandinavian Airlines deal was found by Cheapflights users on 6/8. 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 8/184:45 pm
SFO
- KEF
2 stops33h 10m
Scandinavian Airlines
Tue 8/255:05 pm
KEF
- SFO
1 stop28h 35m
Scandinavian Airlines
Deal found 6/8![Scandinavian Airlines logo]()
$895
This Scandinavian Airlines deal was found by Cheapflights users on 6/9. 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 8/1611:50 pm
SFO
- KEF
2 stops34h 30m
Scandinavian Airlines
Tue 8/2511:15 am
KEF
- SFO
2 stops34h 25m
Scandinavian Airlines
Deal found 6/9![Scandinavian Airlines logo]()
$917
This Alaska Airlines deal was found by Cheapflights users on 6/10. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/2210:18 am
SFO
- KEF
1 stop15h 42m
Alaska Airlines
Sat 8/112:45 pm
KEF
- SFO
1 stop12h 18m
Alaska Airlines
Deal found 6/10![Alaska Airlines logo]()
$979
This Scandinavian Airlines deal was found by Cheapflights users on 6/8. 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 9/24:45 pm
SFO
- KEF
2 stops31h 20m
Scandinavian Airlines
Mon 9/215:05 pm
KEF
- SFO
2 stops37h 31m
Scandinavian Airlines
Deal found 6/8![Scandinavian Airlines logo]()
$956
This Alaska Airlines deal was found by Cheapflights users on 6/6. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/297:03 am
SFO
- KEF
1 stop18h 57m
Alaska Airlines
Tue 6/3012:45 pm
KEF
- SFO
1 stop17h 10m
Alaska Airlines
Deal found 6/6![Alaska Airlines logo]()
$1,033
This Scandinavian Airlines deal was found by Cheapflights users on 6/9. 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 8/144:45 pm
SFO
- KEF
2 stops34h 05m
Scandinavian Airlines
Mon 11/1611:35 am
KEF
- SFO
2 stops35h 15m
Scandinavian Airlines
Deal found 6/9![Scandinavian Airlines logo]()
$1,090
This Alaska Airlines deal was found by Cheapflights users on 6/8. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/110:18 am
SFO
- KEF
1 stop15h 42m
Alaska Airlines
Sat 7/1112:45 pm
KEF
- SFO
1 stop15h 03m
Alaska Airlines
Deal found 6/8![Alaska Airlines logo]()
$1,104
Last-minute flights from San Francisco to Keflavik IntlDiscover last-minute flight deals from San Francisco to Keflavik Intl. Data last updated June 11, 2026 and is based on user searches.
Discover last-minute flight deals from San Francisco to Keflavik Intl. Data last updated June 11, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 6/9. 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 7/61:00 pm
SFO
- KEF
1 stop11h 40m
WestJet
Mon 7/279:00 am
KEF
- SFO
1 stop14h 40m
WestJet
Deal found 6/9![WestJet logo]()
$703
This Kiwi.com deal was found by Cheapflights users on 6/7. 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 7/710:23 pm
SFO
- KEF
2 stops27h 37m
Multiple Airlines
Tue 7/219:00 am
KEF
- SFO
1 stop34h 00m
Multiple Airlines
Deal found 6/7![Multiple Airlines logo]()
$678
This Kiwi.com deal was found by Cheapflights users on 6/9. 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 7/72:20 pm
SFO
- KEF
1 stop11h 40m
Multiple Airlines
Fri 7/109:00 am
KEF
- SFO
1 stop14h 40m
Multiple Airlines
Deal found 6/9![Multiple Airlines logo]()
$706
This Kiwi.com deal was found by Cheapflights users on 6/9. 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 7/82:20 pm
SFO
- KEF
1 stop11h 40m
Multiple Airlines
Wed 7/159:00 am
KEF
- SFO
1 stop14h 40m
Multiple Airlines
Deal found 6/9![Multiple Airlines logo]()
$704
This Alaska Airlines deal was found by Cheapflights users on 6/6. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/126:03 am
SFO
- KEF
1 stop19h 57m
Alaska Airlines
Wed 7/2212:45 pm
KEF
- SFO
1 stop14h 07m
Alaska Airlines
Deal found 6/6![Alaska Airlines logo]()
$668
This Kiwi.com deal was found by Cheapflights users on 6/9. 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.
Sun 7/127:03 am
SFO
- KEF
1 stop18h 57m
Multiple Airlines
Tue 7/289:00 am
KEF
- SFO
2 stops19h 38m
Multiple Airlines
Deal found 6/9![Multiple Airlines logo]()
$691
This Kiwi.com deal was found by Cheapflights users on 6/9. 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 7/148:28 pm
SFO
- KEF
1 stop29h 32m
Multiple Airlines
Tue 7/219:00 am
KEF
- SFO
2 stops19h 38m
Multiple Airlines
Deal found 6/9![Multiple Airlines logo]()
$684
This Kiwi.com deal was found by Cheapflights users on 6/9. 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.
Fri 7/178:28 pm
SFO
- KEF
1 stop29h 32m
Multiple Airlines
Wed 7/229:00 am
KEF
- SFO
1 stop19h 55m
Multiple Airlines
Deal found 6/9![Multiple Airlines logo]()
$698
This Alaska Airlines deal was found by Cheapflights users on 6/7. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/206:03 am
SFO
- KEF
1 stop19h 57m
Alaska Airlines
Mon 7/2712:45 pm
KEF
- SFO
1 stop27h 35m
Alaska Airlines
Deal found 6/7![Alaska Airlines logo]()
$651
This Kiwi.com deal was found by Cheapflights users on 6/7. 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.
Mon 7/202:20 pm
SFO
- KEF
1 stop11h 40m
Multiple Airlines
Tue 7/289:00 am
KEF
- SFO
1 stop34h 00m
Multiple Airlines
Deal found 6/7![Multiple Airlines logo]()
$653
This Kiwi.com deal was found by Cheapflights users on 6/6. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/216:00 am
SFO
- KEF
1 stop18h 40m
WestJet
Thu 7/239:00 am
KEF
- SFO
1 stop14h 40m
WestJet
Deal found 6/6![WestJet logo]()
$702
This Kiwi.com deal was found by Cheapflights users on 6/6. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/267:03 am
SFO
- KEF
1 stop18h 57m
Multiple Airlines
Tue 8/119:00 am
KEF
- SFO
2 stops40h 00m
Multiple Airlines
Deal found 6/6![Multiple Airlines logo]()
$699
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 June 11, 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 June 11, 2026.
This Alaska Airlines deal was found by Cheapflights users on 6/6. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/39:00 am
SFO
- KEF
1 stop17h 00m
Alaska Airlines
Deal found 6/6![Alaska Airlines logo]()
$260
This Kiwi.com deal was found by Cheapflights users on 6/6. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/610:23 pm
SFO
- KEF
2 stops27h 37m
Multiple Airlines
Deal found 6/6![Multiple Airlines logo]()
$309
This Priceline deal was found by Cheapflights users on 6/6. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/169:00 am
SFO
- KEF
1 stop17h 00m
Alaska Airlines
Deal found 6/6![Alaska Airlines logo]()
$325
This Kiwi.com deal was found by Cheapflights users on 6/6. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/126:00 am
SFO
- KEF
1 stop18h 40m
WestJet
Deal found 6/6![WestJet logo]()
$329
This Expedia deal was found by Cheapflights users on 6/9. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/1012:27 pm
SFO
- KEF
1 stop13h 33m
Alaska Airlines
Deal found 6/9![Alaska Airlines logo]()
$330
This Kiwi.com deal was found by Cheapflights users on 6/6. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/56:00 am
SFO
- KEF
1 stop18h 40m
WestJet
Deal found 6/6![WestJet logo]()
$335
This Alaska Airlines deal was found by Cheapflights users on 6/8. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/296:21 pm
SFO
- KEF
1 stop31h 39m
Alaska Airlines
Deal found 6/8![Alaska Airlines logo]()
$337
This Alaska Airlines deal was found by Cheapflights users on 6/8. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/145:38 pm
SFO
- KEF
1 stop32h 22m
Alaska Airlines
Deal found 6/8![Alaska Airlines logo]()
$342
This Kiwi.com deal was found by Cheapflights users on 6/8. 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.
Fri 7/107:08 pm
SFO
- KEF
2 stops54h 52m
Multiple Airlines
Deal found 6/8![Multiple Airlines logo]()
$354
This Kiwi.com deal was found by Cheapflights users on 6/8. 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.
Sun 7/510:23 pm
SFO
- KEF
2 stops51h 37m
Multiple Airlines
Deal found 6/8![Multiple Airlines logo]()
$355
This Kiwi.com deal was found by Cheapflights users on 6/6. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/910:23 pm
SFO
- KEF
2 stops51h 37m
Multiple Airlines
Deal found 6/6![Multiple Airlines logo]()
$356
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 June 11, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $651 (Alaska Airlines) |
One-way from | $260 (Alaska Airlines) |
Popular in | April |
Cheapest in | December |
Average price | $1,106 |
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 2,558,603 searches. Data last updated June 11, 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 - KEF
SFOKEF
San Francisco
Sun 7/12
6:03 am-9:00 am
1 stop19h 57m
Reykjavik Keflavik Intl
Wed 7/22
12:45 pm-7:52 pm
1 stop14h 07m
$668
Quickest round-trip
San FranciscoReykjavik
SFO - KEF
SFOKEF
San Francisco
Mon 8/24
1:54 pm-9:00 am
1 stop12h 06m
Reykjavik Keflavik Intl
Thu 8/27
12:45 pm-9:30 pm
1 stop15h 45m
$704
San FranciscoReykjavik
SFO - KEF
SFOKEF
San Francisco
Fri 8/28
4:45 pm-9:50 am
2 stops34h 05m
Reykjavik Keflavik Intl
Tue 9/8
11:15 am-2:40 pm
2 stops34h 25m
$869
San FranciscoReykjavik
SFO - KEF
SFOKEF
San Francisco
Tue 8/18
4:45 pm-8:55 am
2 stops33h 10m
Reykjavik Keflavik Intl
Tue 8/25
5:05 pm-2:40 pm
1 stop28h 35m
$895
San FranciscoReykjavik
SFO - KEF
SFOKEF
San Francisco
Sun 8/16
11:50 pm-5:20 pm
2 stops34h 30m
Reykjavik Keflavik Intl
Tue 8/25
11:15 am-2:40 pm
2 stops34h 25m
$917
San FranciscoReykjavik
SFO - KEF
SFOKEF
San Francisco
Wed 9/2
4:45 pm-7:05 am
2 stops31h 20m
Reykjavik Keflavik Intl
Mon 9/21
5:05 pm-11:36 pm
2 stops37h 31m
$956
San FranciscoReykjavik
SFO - KEF
SFOKEF
San Francisco
Wed 7/22
10:18 am-9:00 am
1 stop15h 42m
Reykjavik Keflavik Intl
Sat 8/1
12:45 pm-6:03 pm
1 stop12h 18m
$979
San FranciscoReykjavik
SFO - KEF
SFOKEF
San Francisco
Sun 7/12
12:42 pm-7:00 am
1 stop11h 18m
Reykjavik Keflavik Intl
Wed 7/22
11:25 am-9:59 pm
2 stops17h 34m
$998
San FranciscoReykjavik
SFO - KEF
SFOKEF
San Francisco
Mon 6/29
7:03 am-9:00 am
1 stop18h 57m
Reykjavik Keflavik Intl
Tue 6/30
12:45 pm-10:55 pm
1 stop17h 10m
$1,033
San FranciscoReykjavik
SFO - KEF
SFOKEF
San Francisco
Mon 7/20
10:19 am-8:50 am
2 stops15h 31m
Reykjavik Keflavik Intl
Mon 7/27
11:30 am-8:10 pm
2 stops15h 40m
$1,069
Showing 1-10 of 20 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 June.
| 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 46 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, December is the cheapest month in which you can book a flight from San Francisco to Reykjavik Keflavik Intl Airport (average of $740). 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?
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 June 11, 2026.
See what other customers who have flown with Alaska Airlines,Delta, 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.
Boarding
8.1
Entertainment
7.0
Overall
7.9
Comfort
7.8
Food
7.0
Crew
8.5
Reviews
1 / 20
10.0
ExcellentFranzi,Mar 2026
SFO - PDX
Boarding
8.1
Entertainment
7.0
Overall
7.9
Comfort
7.8
Food
7.0
Crew
8.5
Reviews
1 / 20
10.0
ExcellentFranzi,Mar 2026
SFO - PDX
Boarding
8.1
Entertainment
7.0
Overall
7.9
Comfort
7.8
Food
7.0
Crew
8.5
Reviews
1 / 20
10.0
ExcellentFranzi,Mar 2026
SFO - PDX
Boarding
8.1
Entertainment
7.0
Overall
7.9
Comfort
7.8
Food
7.0
Crew
8.5
Reviews
1 / 20
10.0
ExcellentFranzi,Mar 2026
SFO - PDX
Boarding
8.1
Entertainment
7.0
Overall
7.9
Comfort
7.8
Food
7.0
Crew
8.5
Reviews
1 / 20
10.0
ExcellentFranzi,Mar 2026
SFO - PDX
Boarding
8.1
Entertainment
7.0
Overall
7.9
Comfort
7.8
Food
7.0
Crew
8.5
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 June 11, 2026.
San Francisco and Keflavik Intl flights
Browse other San Francisco and Keflavik Intl flight options. Last updated on June 11, 2026.
Other flights from San Francisco
Browse through other flights departing from San Francisco. Flights are based on user searches made on Cheapflights and were last updated on June 11, 2026.
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Check out other popular destinations found by fellow travelers in 2026
Top 7 airlines flying from San Francisco to Keflavik Intl
Discover the top 7 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 2,558,603 searches. Data last updated June 11, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$212 | Average$888 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$549 | Average$854 | FlexibilityNo cancel fee | On-time67% | |
| Cheapest$620 | Average$942 | FlexibilityNo cancel fee | On-time60% | |
| Cheapest$651 | Average$929 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$698 | Average$768 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$764 | Average$1,040 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$771 | Average$1,074 | FlexibilityNo cancel fee | On-time76% |