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Keflavik Intl

$298+ Cheap flights from Fremont, CA 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 5/10. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — KEF
fev 27 — mar 61
sex 2/27
sex 3/6
1 adult, Economy
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Cheap flight deals from Fremont to Keflavik Intl

Cheapest flights from Fremont to Keflavik Intl
Explore the most affordable flight options available from Fremont to Keflavik Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on janeiro 28, 2026.

This Kiwi.com deal was found by Cheapflights users on 1/28. 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.
seg 4/204:45 pm
SFO
-
KEF
1 stop16h 30m
Scandinavian Airlines
seg 4/275:05 pm
KEF
-
SFO
1 stop28h 35m
Scandinavian Airlines
Deal found 1/28$641
This Kiwi.com deal was found by Cheapflights users on 1/26. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb 4/254:45 pm
SFO
-
KEF
1 stop33h 55m
Scandinavian Airlines
qui 4/305:05 pm
KEF
-
SFO
1 stop28h 35m
Scandinavian Airlines
Deal found 1/26$642
This Kiwi.com deal was found by Cheapflights users on 1/26. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
qui 4/234:45 pm
SFO
-
KEF
1 stop16h 30m
Scandinavian Airlines
qui 4/305:05 pm
KEF
-
SFO
1 stop28h 35m
Scandinavian Airlines
Deal found 1/26$650
This Kiwi.com deal was found by Cheapflights users on 1/26. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ter 4/214:45 pm
SFO
-
KEF
1 stop33h 55m
Scandinavian Airlines
dom 5/35:05 pm
KEF
-
SFO
1 stop28h 35m
Scandinavian Airlines
Deal found 1/26$656
This oojo deal was found by Cheapflights users on 1/26. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sex 4/174:45 pm
SFO
-
KEF
2 stops18h 00m
Scandinavian Airlines
dom 4/265:05 pm
KEF
-
SFO
1 stop28h 35m
Scandinavian Airlines
Deal found 1/26$657
This oojo deal was found by Cheapflights users on 1/26. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
qui 4/164:45 pm
SFO
-
KEF
1 stop16h 30m
Scandinavian Airlines
dom 4/265:05 pm
KEF
-
SFO
1 stop28h 35m
Scandinavian Airlines
Deal found 1/26$660
This oojo deal was found by Cheapflights users on 1/28. 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.
sáb 4/184:45 pm
SFO
-
KEF
1 stop16h 30m
Scandinavian Airlines
dom 4/265:05 pm
KEF
-
SFO
1 stop28h 35m
Scandinavian Airlines
Deal found 1/28$661
This lol.travel deal was found by Cheapflights users on 1/27. 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 lol.travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
seg 3/235:40 pm
SFO
-
KEF
1 stop16h 10m
Scandinavian Airlines
qua 4/85:05 pm
KEF
-
SFO
1 stop28h 35m
Scandinavian Airlines
Deal found 1/27$671
This oojo deal was found by Cheapflights users on 1/26. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom 4/264:45 pm
SFO
-
KEF
2 stops34h 40m
Scandinavian Airlines
qua 5/65:05 pm
KEF
-
SFO
1 stop28h 35m
Scandinavian Airlines
Deal found 1/26$672

Find flight deals from Fremont to Keflavik Intl

Keep the following information in mind while searching for Fremont to Keflavik Intl flight deals. Data was last updated janeiro 28, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$641
(Kiwi.com)

One-way from

$298
(Kiwi.com)

Popular in

June

Cheapest in

February

Average price

$923
Provider with most accurate pricing for San Francisco-Reykjavik (REK) flight deals.
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Provider most trusted by Cheapflights users for San Francisco-Reykjavik (REK) flights.
Search Deals
From Fremont to Reykjavik Keflavik Intl
Search Deals
One-way flight from Fremont to Reykjavik Keflavik Intl
Search Deals
Highest demand for flights based on searches. 7% potential increase in price ($75 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($14 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Fremont 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 janeiro 28, 2026.
Use the filters below to find and compare flights from Fremont to Reykjavik Keflavik Intl Airport that are best for you.

Fly from

Fremont

Fly to

Keflavik Intl

Route

Depart

Return

Price

San FranciscoReykjavik

SFO - KEF

SFOKEF

San Francisco

qua 4/15

10:55 pm-4:15 pm

2 stops34h 20m

Reykjavik Keflavik Intl

dom 4/19

10:40 am-2:40 pm

2 stops35h 00m

$749

San FranciscoReykjavik

SFO - KEF

SFOKEF

San Francisco

sáb 5/9

7:00 am-4:15 pm

2 stops26h 15m

Reykjavik Keflavik Intl

qua 5/13

11:15 am-2:40 pm

2 stops34h 25m

$805

San FranciscoReykjavik

SFO - KEF

SFOKEF

San Francisco

sáb 4/4

4:03 pm-11:50 pm

2 stops24h 47m

Reykjavik Keflavik Intl

sex 4/10

7:55 am-2:40 pm

2 stops37h 45m

$818

San FranciscoReykjavik

SFO - KEF

SFOKEF

San Francisco

sáb 4/4

2:30 pm-11:50 pm

2 stops26h 20m

Reykjavik Keflavik Intl

dom 4/12

10:40 am-2:40 pm

2 stops35h 00m

$819

San FranciscoReykjavik

SFO - KEF

SFOKEF

San Francisco

sáb 4/11

7:25 am-4:15 pm

2 stops25h 50m

Reykjavik Keflavik Intl

sáb 4/18

5:10 pm-2:40 pm

1 stop28h 30m

$846

San FranciscoReykjavik

SFO - KEF

SFOKEF

San Francisco

sáb 5/9

7:00 am-4:15 pm

2 stops26h 15m

Reykjavik Keflavik Intl

sex 5/15

7:40 am-8:19 pm

2 stops19h 39m

$850

San FranciscoReykjavik

SFO - KEF

SFOKEF

San Francisco

qua 4/1

7:00 am-10:15 am

2 stops20h 15m

Reykjavik Keflavik Intl

qua 4/8

11:15 am-2:40 pm

2 stops34h 25m

$873

San FranciscoReykjavik

SFO - KEF

SFOKEF

San Francisco

seg 5/11

4:45 pm-4:15 pm

1 stop16h 30m

Reykjavik Keflavik Intl

qui 5/14

5:35 pm-2:40 pm

1 stop28h 05m

$892

San FranciscoReykjavik

SFO - KEF

SFOKEF

San Francisco

qua 4/22

7:25 am-9:30 am

1 stop19h 05m

Reykjavik Keflavik Intl

ter 5/5

11:25 am-6:59 pm

1 stop14h 34m

$894

San FranciscoReykjavik

SFO - KEF

SFOKEF

San Francisco

ter 5/12

8:55 am-7:40 am

2 stops15h 45m

Reykjavik Keflavik Intl

ter 5/26

9:30 am-11:52 pm

2 stops21h 22m

$909

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/25

Showing 1-10 of 19 results
1
2

Best time to book a flight from Fremont to Keflavik Intl

Have a flexible travel schedule? Discover the best time to fly to Keflavik Intl from Fremont 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.

Cheapflights Insights

Everything you need to know about your flight from Fremont to Reykjavik Keflavik Intl Airport

How far ahead should I book a flight from Fremont to Reykjavik Keflavik Intl Airport?

Use this chart to determine the optimal time to book a round-trip flight from Fremont to Keflavik Intl. Price data was last updated on January 23, 2026.

Booking 89 days in advance of your planned departure date is, on average, the best time to get cheap flights from Fremont 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 Fremont to Reykjavik Keflavik Intl Airport?

Currently, April is the cheapest month in which you can book a flight from Fremont to Reykjavik Keflavik Intl Airport (average of $167). Flying from Fremont to Reykjavik Keflavik Intl Airport in May is currently the most expensive (average of $807). 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.

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 janeiro 28, 2026.
Read through reviews of airlines operating flights from Fremont to Reykjavik Keflavik Intl Airport, such as Alaska Airlines, Delta, and United Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
11,799 reviews

Boarding

8.1

Crew

8.5

Overall

8.0

Comfort

7.8

Entertainment

7.0

Food

7.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

STS - LAX

Enjoyed staff assistance from ticking thru tsa , boarding and in the plane Couldn’t pick a seat except upgrading
Alaska Airlines
8.0
Very good
11,799 reviews
Alaska Airlines
8.0
Very good
11,799 reviews

Boarding

8.1

Crew

8.5

Overall

8.0

Comfort

7.8

Entertainment

7.0

Food

7.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

STS - LAX

Enjoyed staff assistance from ticking thru tsa , boarding and in the plane Couldn’t pick a seat except upgrading
Delta
7.9
Good
8,123 reviews
Alaska Airlines
8.0
Very good
11,799 reviews

Boarding

8.1

Crew

8.5

Overall

8.0

Comfort

7.8

Entertainment

7.0

Food

7.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

STS - LAX

Enjoyed staff assistance from ticking thru tsa , boarding and in the plane Couldn’t pick a seat except upgrading
United Airlines
7.4
Good
9,208 reviews
Alaska Airlines
8.0
Very good
11,799 reviews

Boarding

8.1

Crew

8.5

Overall

8.0

Comfort

7.8

Entertainment

7.0

Food

7.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

STS - LAX

Enjoyed staff assistance from ticking thru tsa , boarding and in the plane Couldn’t pick a seat except upgrading
WestJet
7.2
Good
3,251 reviews
Alaska Airlines
8.0
Very good
11,799 reviews

Boarding

8.1

Crew

8.5

Overall

8.0

Comfort

7.8

Entertainment

7.0

Food

7.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

STS - LAX

Enjoyed staff assistance from ticking thru tsa , boarding and in the plane Couldn’t pick a seat except upgrading
Icelandair
7.1
Good
603 reviews
Alaska Airlines
8.0
Very good
11,799 reviews

Boarding

8.1

Crew

8.5

Overall

8.0

Comfort

7.8

Entertainment

7.0

Food

7.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

STS - LAX

Enjoyed staff assistance from ticking thru tsa , boarding and in the plane Couldn’t pick a seat except upgrading

Related info for your journey

Find useful and relevant information for your journey from Fremont to Keflavik Intl. 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 Fremont to Reykjavik Keflavik Intl Airport?

    Departing from Fremont to Reykjavik Keflavik Intl Airport will take you 34h 20m. Fremont and Reykjavik Keflavik Intl Airport are separated by a distance of 4190 mi.

  • What are the cheapest airlines to fly from Fremont to Reykjavik Keflavik Intl Airport one-way?

    To fly one-way, consider booking your trip with WestJet, which is currently one of the cheapest options available, starting at $300. Icelandair flights start at $488 while deals on Air Canada start at $501 one-way.

  • Can I find deals for flights from Fremont to Keflavik Intl that include hotel bookings?

    Yes. In addition to deals on Fremont to Keflavik Intl flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Fremont to Keflavik Intl?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Fremont to Keflavik Intl.

  • Can I find deals for business class flights from Fremont to Keflavik Intl?

    Yes. Cheapflights offers flight deals from Fremont to Keflavik Intl by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Fremont to Reykjavik Keflavik Intl Airport?

    Currently, April is the cheapest month in which you can book a flight from Fremont to Reykjavik Keflavik Intl Airport (average of $167). Flying from Fremont to Reykjavik Keflavik Intl Airport in May is currently the most expensive (average of $807). 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.

See more FAQs

Traveling to a place near Reykjavik Keflavik Intl Airport?

Book flights to Reykjavik Keflavik Intl Airport if you plan to visit one of these locations
Keflavik
Hveragerdi

Browse thousands of different options on Cheapflights for your next trip

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Top 8 airlines flying from Fremont to Keflavik Intl

Discover the top 8 airlines that operate flights from Fremont 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 janeiro 28, 2026.
AirlineCheapestAverageFlexibilityOn-time
WestJetCheapest$537Average$714FlexibilityNo cancel feeOn-time60%
DeltaCheapest$556Average$844FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$646Average$1,145FlexibilityNo cancel feeOn-time75%
Air CanadaCheapest$650Average$830FlexibilityNo cancel feeOn-time67%
Air FranceCheapest$655Average$807FlexibilityNo cancel feeOn-time77%
United AirlinesCheapest$684Average$925FlexibilityNo cancel feeOn-time69%
Scandinavian AirlinesCheapest$698Average$803FlexibilityNo cancel feeOn-time77%
IcelandairCheapest$736Average$1,140FlexibilityNo cancel feeOn-time76%

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