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Cheap flights from Keflavik Intl (KEF) to San Francisco (SFO) from $325

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 9/9. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
KEF — SFO
Jun 17 — Jun 241
From?
To?
Mon 6/17
Mon 6/24
1 adult, Economy
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Cheap flight deals from Keflavik Intl to San Francisco

Discover tips and strategies to find the most affordable flight options for your journey from Keflavik Intl (KEF) to San Francisco (SFO). 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 12, 2024.

Popular in

September

Cheapest in

December

Average price

$759

Round-trip from

$268
High demand for flights, 24% potential price rise
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Best time to find cheap flights, 30% potential price drop
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Average for round-trip flights in June 2024
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From Reykjavik Keflavik Intl to San Francisco
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What is the cheapest day to fly round-trip from Reykjavik Keflavik Intl Airport to San Francisco?

Flying to your destination on a Friday can be more expensive, but this shouldn’t discourage you from finding affordable options to get to San Francisco. Check prices with Cheapflights to find a great deal for your trip.

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

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Reykjavik Keflavik Intl Airport to San Francisco as you normally would.

Cheap Keflavik Intl to San Francisco flights in June & July 2024

Find cheap flight options from Keflavik Intl to San Francisco specifically for the months of June and July 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 3,117,830 searches. Prices were last updated on June 12, 2024.
Listed are some of the best fares we've found on flights departing from Reykjavik to San Francisco in 2024. Check back soon for alternative fares.
Thu 6/209:35 amKEF - SFO
1 stop14h 38mWestJet
Sat 7/63:20 pmSFO - KEF
2 stops33h 55mWestJet
Deal found 6/11$780
Wed 7/1012:00 pmKEF - SFO
1 stop16h 14mUnited Airlines
Wed 7/1711:00 pmSFO - KEF
1 stop26h 35mUnited Airlines
Deal found 6/11$787
Fri 6/286:55 pmKEF - SFO
1 stop27h 55mScandinavian Airlines
Tue 7/25:40 pmSFO - KEF
1 stop33h 05mScandinavian Airlines
Deal found 6/12$789
Wed 7/1012:00 pmKEF - SFO
1 stop16h 14mUnited Airlines
Wed 7/1711:15 amSFO - KEF
2 stops14h 15mUnited Airlines
Deal found 6/11$796
Sat 7/279:35 amKEF - SFO
2 stops34h 57mWestJet
Sat 9/213:20 pmSFO - KEF
2 stops33h 55mWestJet
Deal found 6/11$805
Fri 6/286:55 pmKEF - SFO
1 stop27h 55mScandinavian Airlines
Tue 7/25:40 pmSFO - KEF
2 stops55h 25mScandinavian Airlines
Deal found 6/12$818
Sat 7/279:35 amKEF - SFO
2 stops34h 57mMultiple Airlines
Sat 9/214:50 pmSFO - KEF
3 stops32h 25mMultiple Airlines
Deal found 6/11$821
Thu 6/209:45 amKEF - SFO
1 stop32h 27mAir Canada
Sat 7/611:00 pmSFO - KEF
1 stop26h 35mAir Canada
Deal found 6/11$824
Thu 6/2012:00 pmKEF - SFO
2 stops15h 40mUnited Airlines
Sat 7/69:19 amSFO - KEF
2 stops16h 11mUnited Airlines
Deal found 6/11$829

Keflavik Intl to San Francisco 2024 flight deals

Discover exclusive flight deals for travel between Keflavik Intl and San Francisco in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 3,117,830 searches. Data last updated June 12, 2024.
Listed are some of the best fares we've found on flights departing from Reykjavik to San Francisco in 2024. Check back soon for alternative fares.
Thu 6/209:35 amKEF - SFO
1 stop14h 38mWestJet
Sat 7/63:20 pmSFO - KEF
2 stops33h 55mWestJet
Deal found 6/11$780
Wed 7/1012:00 pmKEF - SFO
1 stop16h 14mUnited Airlines
Wed 7/1711:00 pmSFO - KEF
1 stop26h 35mUnited Airlines
Deal found 6/11$787
Fri 6/286:55 pmKEF - SFO
1 stop27h 55mScandinavian Airlines
Tue 7/25:40 pmSFO - KEF
1 stop33h 05mScandinavian Airlines
Deal found 6/12$789
Wed 7/1012:00 pmKEF - SFO
1 stop16h 14mUnited Airlines
Wed 7/1711:15 amSFO - KEF
2 stops14h 15mUnited Airlines
Deal found 6/11$796
Sat 7/279:35 amKEF - SFO
2 stops34h 57mWestJet
Sat 9/213:20 pmSFO - KEF
2 stops33h 55mWestJet
Deal found 6/11$805
Fri 6/286:55 pmKEF - SFO
1 stop27h 55mScandinavian Airlines
Tue 7/25:40 pmSFO - KEF
2 stops55h 25mScandinavian Airlines
Deal found 6/12$818
Sat 7/279:35 amKEF - SFO
2 stops34h 57mMultiple Airlines
Sat 9/214:50 pmSFO - KEF
3 stops32h 25mMultiple Airlines
Deal found 6/11$821
Thu 6/209:45 amKEF - SFO
1 stop32h 27mAir Canada
Sat 7/611:00 pmSFO - KEF
1 stop26h 35mAir Canada
Deal found 6/11$824
Thu 6/2012:00 pmKEF - SFO
2 stops15h 40mUnited Airlines
Sat 7/69:19 amSFO - KEF
2 stops16h 11mUnited Airlines
Deal found 6/11$829

Keflavik Intl to San Francisco flights leaving soon

Find last-minute flight options from Keflavik Intl to San Francisco for spontaneous travel. Discover available flights and compare prices based on user searches. Secure great deals and offers for spontaneous trips with quick booking options. Over the last 7 days, Cheapflights users made 3,117,830 searches. Data last updated June 12, 2024.
Have a look at some of the last-minute flights available departing from Reykjavik to San Francisco. It's wise to confirm all flight details are correct before booking.
Thu 6/209:35 amKEF - SFO
1 stop14h 38mWestJet
Sat 7/63:20 pmSFO - KEF
2 stops33h 55mWestJet
Deal found 6/11$780
Thu 6/209:45 amKEF - SFO
1 stop32h 27mAir Canada
Sat 7/611:00 pmSFO - KEF
1 stop26h 35mAir Canada
Deal found 6/11$824
Thu 6/2012:00 pmKEF - SFO
2 stops15h 40mUnited Airlines
Sat 7/69:19 amSFO - KEF
2 stops16h 11mUnited Airlines
Deal found 6/11$829
Wed 6/1912:25 amKEF - SFO
1 stop22h 35mLufthansa
Sat 7/67:20 pmSFO - KEF
1 stop21h 10mLufthansa
Deal found 6/11$891

One-way flights to San Francisco from Keflavik Intl

Search for one-way flight options from Keflavik Intl to San Francisco. Find affordable one-way fares based on user searches. Compare prices and availability to plan your one-way journey according to your preferred dates and budget. Over the last 7 days, Cheapflights users made 3,117,830 searches. Data last updated June 12, 2024.
Take a look at some of the best available options we've come across on one-way flights from Reykjavik to San Francisco. Users needing a return flight from Reykjavik to San Francisco should utilize the search form above.
Mon 9/99:35 amKEF - SFO
1 stop33h 25mWestJet
Deal found 6/11$325
Fri 9/63:05 pmKEF - SFO
2 stops39h 53mMultiple Airlines
Deal found 6/11$362
Tue 7/99:35 amKEF - SFO
1 stop18h 45mWestJet
Deal found 6/12$411
Sat 8/39:35 amKEF - SFO
2 stops22h 09mMultiple Airlines
Deal found 6/11$435
Sat 8/313:05 pmKEF - SFO
2 stops39h 53mMultiple Airlines
Deal found 6/12$438
Mon 9/99:35 amKEF - SFO
2 stops19h 03mMultiple Airlines
Deal found 6/11$440
Mon 8/59:35 amKEF - SFO
1 stop33h 25mWestJet
Deal found 6/11$446
Mon 8/59:35 amKEF - SFO
2 stops41h 02mMultiple Airlines
Deal found 6/11$447
Sat 9/712:45 amKEF - SFO
2 stops41h 08mMultiple Airlines
Deal found 6/11$473

Find flights from Keflavik Intl to San Francisco within your budget

Customize your flight search to find flights from Keflavik Intl to San Francisco 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 3,117,830 searches. Data last updated June 12, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$787 - $1,805

Route

Depart

Return

Price

Reykjavik Keflavik IntlSan Francisco

KEF - SFO

KEFSFO

Reykjavik Keflavik Intl

Wed 7/10

1 stop16h 14m

San Francisco

Wed 7/17

1 stop26h 35m

$787

Reykjavik Keflavik IntlSan Francisco

KEF - SFO

KEFSFO

Reykjavik Keflavik Intl

Fri 6/28

1 stop27h 55m

San Francisco

Tue 7/2

1 stop33h 05m

$789

Reykjavik Keflavik IntlSan Francisco

KEF - SFO

KEFSFO

Reykjavik Keflavik Intl

Wed 7/10

1 stop16h 14m

San Francisco

Wed 7/17

2 stops14h 15m

$796

Reykjavik Keflavik IntlSan Francisco

KEF - SFO

KEFSFO

Reykjavik Keflavik Intl

Sat 7/27

2 stops34h 57m

San Francisco

Sat 9/21

2 stops33h 55m

$805

Reykjavik Keflavik IntlSan Francisco

KEF - SFO

KEFSFO

Reykjavik Keflavik Intl

Fri 6/28

1 stop27h 55m

San Francisco

Tue 7/2

2 stops55h 25m

$818

Reykjavik Keflavik IntlSan Francisco

KEF - SFO

KEFSFO

Reykjavik Keflavik Intl

Sat 7/27

2 stops34h 57m

San Francisco

Sat 9/21

3 stops32h 25m

$821

Reykjavik Keflavik IntlSan Francisco

KEF - SFO

KEFSFO

Reykjavik Keflavik Intl

Sat 7/27

3 stops34h 57m

San Francisco

Sat 9/21

3 stops32h 25m

$860

Reykjavik Keflavik IntlSan Francisco

KEF - SFO

KEFSFO

Reykjavik Keflavik Intl

Thu 6/27

2 stops20h 15m

San Francisco

Tue 7/2

2 stops41h 30m

$1,305

Reykjavik Keflavik IntlSan Francisco

KEF - SFO

KEFSFO

Reykjavik Keflavik Intl

Thu 6/27

1 stop24h 50m

San Francisco

Tue 7/2

1 stop25h 50m

$1,805

Flights are sorted by cheapest first

Deals found on 6/11

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

Use this chart to determine the cheapest time to fly round-trip from Keflavik Intl to San Francisco. Price data was last updated on April 14, 2024.
Morning
Noon
Afternoon
Evening
All times are departure.
Travelers seeking maximum savings on their Reykjavik Keflavik Intl Airport to San Francisco flight should consider departing on Sunday mornings when fares are most often at their lowest. Saturday mornings flights should be avoided if possible as fares are typically the most expensive at this time.
Search Deals

Best time to book a flight from Keflavik Intl to San Francisco

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

Temperature and rainfall in San Francisco by month

Plan your trip to San Francisco by taking into account the average temperature and rainfall totals by month.

SFO

Temperature

51.8 - 62.6 °F

If weather is an important factor for your trip to San Francisco, use this chart to help with planning. For those seeking warmer temperatures, September is the ideal time of year to visit, when temperatures reach an average of 62.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 51.8 F).

Reviews of airlines servicing San Francisco

Get insights into the airlines that provide service to San Francisco. 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 San Francisco. Reviews last updated June 12, 2024.
Read through reviews of airlines operating flights from Reykjavik to San Francisco, such as Scandinavian Airlines, Austrian Airlines and Lufthansa. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
KLM
7.9
Good
1,466 reviews

Boarding

7.8

Overall

7.9

Entertainment

7.2

Crew

8.4

Food

7.3

Comfort

7.7

Reviews

1 / 10

Departure was late. Plane much too small for an 11 hour flight. One bathroom was out of order in a completely full flight.

KLM
7.9
Good
1,466 reviews
KLM
7.9
Good
1,466 reviews

Boarding

7.8

Overall

7.9

Entertainment

7.2

Crew

8.4

Food

7.3

Comfort

7.7

Reviews

1 / 10

Departure was late. Plane much too small for an 11 hour flight. One bathroom was out of order in a completely full flight.

Finnair
7.7
Good
1,360 reviews
KLM
7.9
Good
1,466 reviews

Boarding

7.8

Overall

7.9

Entertainment

7.2

Crew

8.4

Food

7.3

Comfort

7.7

Reviews

1 / 10

Departure was late. Plane much too small for an 11 hour flight. One bathroom was out of order in a completely full flight.

SWISS
7.7
Good
1,904 reviews
KLM
7.9
Good
1,466 reviews

Boarding

7.8

Overall

7.9

Entertainment

7.2

Crew

8.4

Food

7.3

Comfort

7.7

Reviews

1 / 10

Departure was late. Plane much too small for an 11 hour flight. One bathroom was out of order in a completely full flight.

Austrian Airlines
7.7
Good
988 reviews
KLM
7.9
Good
1,466 reviews

Boarding

7.8

Overall

7.9

Entertainment

7.2

Crew

8.4

Food

7.3

Comfort

7.7

Reviews

1 / 10

Departure was late. Plane much too small for an 11 hour flight. One bathroom was out of order in a completely full flight.

Scandinavian Airlines
7.4
Good
1,376 reviews
KLM
7.9
Good
1,466 reviews

Boarding

7.8

Overall

7.9

Entertainment

7.2

Crew

8.4

Food

7.3

Comfort

7.7

Reviews

1 / 10

Departure was late. Plane much too small for an 11 hour flight. One bathroom was out of order in a completely full flight.

Related info for your journey

Find useful and relevant information for your journey from Keflavik Intl to San Francisco. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to San Francisco from Reykjavik Keflavik Intl?

    Most people fly into San Francisco (SFO) if they book a flight to San Francisco from Reykjavik Keflavik Intl. On average, San Francisco has 0 inbound flights from Reykjavik Keflavik Intl per day from 0 airlines. San Francisco is conveniently located just 11.8 mi from San Francisco’s city center.

  • Can I find flights from Reykjavik Keflavik Intl Airport to San Francisco for under $800 on Cheapflights?

    Yes, there are multiple flights from Reykjavik Keflavik Intl Airport to San Francisco for under $800. The cheapest flight booked recently is on United Airlines for just $787, but on average you can expect to pay $1,201.

  • Are there last-minute flights available from Reykjavik Keflavik Intl Airport to San Francisco for under $800?

    There are currently 4+ open flights from Reykjavik Keflavik Intl Airport to San Francisco within the next 7 days for less than $800.

  • What are the cheapest airlines flying from Reykjavik Keflavik Intl Airport to San Francisco round-trip?

    According to our current data, United Airlines ($787), Scandinavian Airlines ($789), and WestJet ($805) offers the cheapest pricing from Reykjavik Keflavik Intl Airport to San Francisco. These flights start at 10% lower than the current average price 3 months from now.

  • What does KEF to SFO mean?

    KEF stands for Reykjavik Keflavik Intl Airport, while SFO stands for San Francisco Airport. These codes are often called IATA codes, a set of identifiers established by IATA (International Air Transport Association) that is widely used by airlines and the aviation industry.

  • Can I find deals for flights from Keflavik Intl to San Francisco that include extra baggage allowance?

    The amount of baggage you can bring on your Keflavik Intl to San Francisco flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

  • Can I find deals on flights from Keflavik Intl to San Francisco with specific airlines?

    Yes, Cheapflights allows you to browse and filter Keflavik Intl to San Francisco flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

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

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

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

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

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

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

  • Can I find deals for flights from Keflavik Intl to San Francisco that allow pets onboard?

    Many airlines flying from Keflavik Intl to San Francisco offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

  • Can I find deals on last-minute flights from Keflavik Intl to San Francisco?

    Yes, you can often find last-minute deals on Keflavik Intl to San Francisco flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

  • How recently were the Reykjavik Keflavik Intl Airport to San Francisco flight deals updated?

    The Reykjavik Keflavik Intl Airport to San Francisco flight deals you see on this page were last updated on 6/12.

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

    Currently, September is the cheapest month in which you can book a flight from Reykjavik Keflavik Intl Airport to San Francisco (average of $268). Flying from Reykjavik Keflavik Intl Airport to San Francisco in June is currently the most expensive (average of $384). 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

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Alternative routes for Keflavik Intl to San Francisco
See prices for flight routes from nearby airports that may be better suited for you.

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Search flights from Keflavik Intl to San Francisco by cabin class

Find flights from Keflavik Intl to San Francisco, based on your preferred cabin class, be it economy, premium economy, business, or first class.
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