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Keflavik Intl

$227+ 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 10/6. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — KEF
Aug 5 — Aug 121
Tue 8/5
Tue 8/12
1 adult, Economy
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Cheapflights Tip: The best prices from Fremont to Reykjavik Keflavik Intl are usually found in August or February, booked 89 days in advance, depart on a Monday or Tuesday and return on a Monday

Cheap 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 July 31, 2025.

Round-trip from

$650
(Kiwi.com)

One-way from

$227
(Kiwi.com)

Popular in

December

Cheapest in

August

Average price

$995
From Fremont to Reykjavik Keflavik Intl
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One-way flight from Fremont to Reykjavik Keflavik Intl
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Highest demand for flights based on searches. 7% potential increase in price ($79 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($32 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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Find 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 July 31, 2025.

This Kiwi.com deal was found by Cheapflights users on 7/30. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/2710:15 amSFO - KEF
2 stops15h 00mMultiple Airlines
Mon 9/159:35 amKEF - SFO
1 stop14h 39mMultiple Airlines
Deal found 7/30$652
This Delta deal was found by Cheapflights users on 7/29. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/35:50 amSFO - KEF
1 stop17h 30mDelta
Mon 8/119:30 amKEF - SFO
1 stop18h 57mDelta
Deal found 7/29$653
This oojo deal was found by Cheapflights users on 7/29. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/137:40 pmSFO - KEF
2 stops31h 35mScandinavian Airlines
Sat 10/185:10 pmKEF - SFO
1 stop30h 20mScandinavian Airlines
Deal found 7/29$665
This United Airlines deal was found by Cheapflights users on 7/29. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/1311:55 pmSFO - KEF
2 stops25h 15mUnited Airlines
Fri 8/229:30 amKEF - SFO
2 stops35h 24mUnited Airlines
Deal found 7/29$679
This FlightHub deal was found by Cheapflights users on 7/29. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/192:40 pmSFO - KEF
1 stop25h 55mLufthansa
Sun 11/24:45 pmKEF - SFO
1 stop27h 55mLufthansa
Deal found 7/29$682
This British Airways deal was found by Cheapflights users on 7/30. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/148:40 pmSFO - KEF
1 stop30h 15mBritish Airways
Mon 12/2211:50 amKEF - SFO
1 stop35h 10mBritish Airways
Deal found 7/30$686
This Air Canada deal was found by Cheapflights users on 7/28. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/1711:47 pmSFO - KEF
2 stops25h 28mAir Canada
Mon 8/259:50 amKEF - SFO
2 stops34h 45mAir Canada
Deal found 7/28$687
This Kiwi.com deal was found by Cheapflights users on 7/29. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/512:50 pmSFO - KEF
1 stop12h 25mWestJet
Mon 9/159:35 amKEF - SFO
1 stop33h 19mWestJet
Deal found 7/29$697

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 July 31, 2025.
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

Wed 8/27

10:15 am-8:15 am

2 stops15h 00m

Reykjavik Keflavik Intl

Mon 9/15

9:35 am-5:14 pm

1 stop14h 39m

$652

San FranciscoReykjavik

SFO - KEF

SFOKEF

San Francisco

Sun 8/3

5:50 am-6:20 am

1 stop17h 30m

Reykjavik Keflavik Intl

Mon 8/11

9:30 am-9:27 pm

1 stop18h 57m

$653

San FranciscoReykjavik

SFO - KEF

SFOKEF

San Francisco

Mon 10/13

7:40 pm-10:15 am

2 stops31h 35m

Reykjavik Keflavik Intl

Sat 10/18

5:10 pm-4:30 pm

1 stop30h 20m

$665

San FranciscoReykjavik

SFO - KEF

SFOKEF

San Francisco

Wed 8/13

11:55 pm-8:10 am

2 stops25h 15m

Reykjavik Keflavik Intl

Fri 8/22

9:30 am-1:54 pm

2 stops35h 24m

$679

San FranciscoReykjavik

SFO - KEF

SFOKEF

San Francisco

Sun 10/19

2:40 pm-11:35 pm

1 stop25h 55m

Reykjavik Keflavik Intl

Sun 11/2

4:45 pm-12:40 pm

1 stop27h 55m

$682

San FranciscoReykjavik

SFO - KEF

SFOKEF

San Francisco

Sun 8/17

11:47 pm-8:15 am

2 stops25h 28m

Reykjavik Keflavik Intl

Mon 8/25

9:50 am-1:35 pm

2 stops34h 45m

$687

San FranciscoReykjavik

SFO - KEF

SFOKEF

San Francisco

Sun 9/21

12:50 pm-8:15 am

1 stop12h 25m

Reykjavik Keflavik Intl

Thu 10/2

9:35 am-11:54 am

1 stop33h 19m

$703

San FranciscoReykjavik

SFO - KEF

SFOKEF

San Francisco

Mon 10/6

10:15 am-8:15 am

2 stops15h 00m

$227

San FranciscoReykjavik

SFO - KEF

SFOKEF

San Francisco

Sun 10/5

12:50 pm-8:15 am

1 stop12h 25m

$257

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/29

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 July 25, 2025.

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, November is the cheapest month in which you can book a flight from Fremont to Reykjavik Keflavik Intl Airport (average of $328). Flying from Fremont to Reykjavik Keflavik Intl Airport in June is currently the most expensive (average of $653). 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.

What is the cheapest time of day to fly from FR8 to KEF?

Find hourly flight availability from Fremont to Keflavik Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 31, 2025.

When flying from Fremont to Reykjavik Keflavik Intl Airport, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

What is the cheapest day to fly from Fremont to Reykjavik Keflavik Intl Airport?

Use this chart to determine the cheapest time to fly round-trip from Fremont to Keflavik Intl. Price data was last updated on September 15, 2024.

Travelers seeking maximum savings on their Fremont to Reykjavik Keflavik Intl Airport flight should consider departing on Tuesday evenings when fares are most often at their lowest. Thursday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

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 July 31, 2025.
Read through reviews of airlines operating flights from Fremont to Reykjavik Keflavik Intl Airport, such as United Airlines, Scandinavian Airlines, and WestJet. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
8,900 reviews

Comfort

7.3

Overall

7.4

Boarding

7.7

Food

6.6

Crew

8.1

Entertainment

7.1

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
United Airlines
7.4
Good
8,900 reviews
United Airlines
7.4
Good
8,900 reviews

Comfort

7.3

Overall

7.4

Boarding

7.7

Food

6.6

Crew

8.1

Entertainment

7.1

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
Scandinavian Airlines
7.4
Good
1,457 reviews
United Airlines
7.4
Good
8,900 reviews

Comfort

7.3

Overall

7.4

Boarding

7.7

Food

6.6

Crew

8.1

Entertainment

7.1

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
WestJet
7.2
Good
2,978 reviews
United Airlines
7.4
Good
8,900 reviews

Comfort

7.3

Overall

7.4

Boarding

7.7

Food

6.6

Crew

8.1

Entertainment

7.1

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
Air Canada
7.1
Good
9,851 reviews
United Airlines
7.4
Good
8,900 reviews

Comfort

7.3

Overall

7.4

Boarding

7.7

Food

6.6

Crew

8.1

Entertainment

7.1

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
Lufthansa
6.8
Okay
7,275 reviews
United Airlines
7.4
Good
8,900 reviews

Comfort

7.3

Overall

7.4

Boarding

7.7

Food

6.6

Crew

8.1

Entertainment

7.1

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??

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.

  • 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, November is the cheapest month in which you can book a flight from Fremont to Reykjavik Keflavik Intl Airport (average of $328). Flying from Fremont to Reykjavik Keflavik Intl Airport in June is currently the most expensive (average of $653). 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

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Top 9 airlines flying from Fremont to Keflavik Intl

Discover the top 9 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 July 31, 2025.
AirlineCheapestAverageFlexibilityOn-time
WestJetCheapest$519Average$700FlexibilityNo cancel feeOn-time60%
DeltaCheapest$556Average$793FlexibilityNo cancel feeOn-timeN/A
Scandinavian AirlinesCheapest$653Average$757FlexibilityNo cancel feeOn-time77%
Air FranceCheapest$655Average$830FlexibilityNo cancel feeOn-time77%
United AirlinesCheapest$694Average$932FlexibilityNo cancel feeOn-time69%
KLMCheapest$739Average$949FlexibilityNo cancel feeOn-time75%
Air CanadaCheapest$740Average$858FlexibilityNo cancel feeOn-time67%
IcelandairCheapest$849Average$1,136FlexibilityNo cancel feeOn-time76%
Alaska AirlinesCheapest$975Average$1,177FlexibilityNo cancel feeOn-time75%

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