Cheap flights from Keflavik Intl (KEF) to San Francisco (SFO) from $397

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 7/9. 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 7 — Jun 141

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 2, 2024.

Popular in

September

Cheapest in

December

Average price

$759

Round-trip from

$268
High demand for flights, 24% potential price rise
Best time to find cheap flights, 30% potential price drop
Average for round-trip flights in June 2024
From Reykjavik Keflavik Intl to San Francisco

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 WestJet flights from Keflavik Intl to San Francisco

Explore cheap flight options specifically provided by WestJet for the route between Keflavik Intl and San Francisco. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 2,810,401 searches. Data last updated June 2, 2024.
Peruse some of the lowest-priced WestJet flights we've found from Reykjavik to San Francisco. Make sure to check back often as deals are often changing.
Mon 7/229:35 amKEF - SFO
2 stops35h 58mWestJet
Wed 7/317:30 amSFO - KEF
1 stop17h 45mWestJet
Deal found 6/1$622
Mon 7/229:35 amKEF - SFO
1 stop18h 45mWestJet
Wed 7/317:30 amSFO - KEF
1 stop17h 45mWestJet
Deal found 6/1$648
Thu 6/209:35 amKEF - SFO
1 stop14h 38mWestJet
Sat 7/63:20 pmSFO - KEF
2 stops33h 55mWestJet
Deal found 6/1$658
Thu 6/209:35 amKEF - SFO
1 stop18h 45mWestJet
Sat 7/63:20 pmSFO - KEF
2 stops33h 55mWestJet
Deal found 6/1$723
Mon 7/229:35 amKEF - SFO
2 stops35h 58mWestJet
Wed 7/313:20 pmSFO - KEF
2 stops57h 55mWestJet
Deal found 6/1$760

Cheap Air Canada flights from Keflavik Intl to San Francisco

Explore cheap flight options specifically provided by Air Canada for the route between Keflavik Intl and San Francisco. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 2,810,401 searches. Data last updated June 2, 2024.
To aid your search, here are some of the cheapest Air Canada flights we've found from Reykjavik to San Francisco. Deals are refreshing constantly so come back soon for more options.
Thu 6/209:45 amKEF - SFO
1 stop32h 27mAir Canada
Sat 7/68:30 amSFO - KEF
1 stop17h 05mAir Canada
Deal found 6/1$782
Thu 6/209:45 amKEF - SFO
2 stops39h 05mAir Canada
Sat 7/61:15 pmSFO - KEF
2 stops36h 20mAir Canada
Deal found 6/1$785
Thu 6/209:45 amKEF - SFO
1 stop20h 27mAir Canada
Sat 7/68:30 amSFO - KEF
1 stop17h 05mAir Canada
Deal found 6/1$801

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 2,810,401 searches. Prices were last updated on June 2, 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 6/1$658
Thu 6/209:35 amKEF - SFO
1 stop18h 45mWestJet
Sat 7/63:20 pmSFO - KEF
2 stops33h 55mWestJet
Deal found 6/1$723
Thu 6/209:45 amKEF - SFO
1 stop32h 27mAir Canada
Sat 7/68:30 amSFO - KEF
1 stop17h 05mAir Canada
Deal found 6/1$782
Thu 6/209:45 amKEF - SFO
2 stops39h 05mAir Canada
Sat 7/61:15 pmSFO - KEF
2 stops36h 20mAir Canada
Deal found 6/1$785
Thu 6/2011:00 amKEF - SFO
1 stop14h 27mUnited Airlines
Sat 7/66:30 amSFO - KEF
1 stop19h 00mUnited Airlines
Deal found 6/1$794
Thu 6/209:45 amKEF - SFO
1 stop20h 27mAir Canada
Sat 7/68:30 amSFO - KEF
1 stop17h 05mAir Canada
Deal found 6/1$801
Sun 6/212:00 pmKEF - SFO
1 stop19h 03mUnited Airlines
Sat 6/151:10 pmSFO - KEF
1 stop12h 20mUnited Airlines
Deal found 6/1$905
Sun 6/212:00 pmKEF - SFO
2 stops17h 00mUnited Airlines
Sat 6/151:10 pmSFO - KEF
1 stop12h 20mUnited Airlines
Deal found 6/1$910
Wed 6/1912:25 amKEF - SFO
1 stop22h 35mLufthansa
Sat 7/67:20 pmSFO - KEF
1 stop21h 10mLufthansa
Deal found 6/1$1,133

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 2,810,401 searches. Data last updated June 2, 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.
Mon 7/229:35 amKEF - SFO
2 stops35h 58mWestJet
Wed 7/317:30 amSFO - KEF
1 stop17h 45mWestJet
Deal found 6/1$622
Mon 7/229:35 amKEF - SFO
1 stop18h 45mWestJet
Wed 7/317:30 amSFO - KEF
1 stop17h 45mWestJet
Deal found 6/1$648
Thu 6/209:35 amKEF - SFO
1 stop14h 38mWestJet
Sat 7/63:20 pmSFO - KEF
2 stops33h 55mWestJet
Deal found 6/1$658
Thu 6/209:35 amKEF - SFO
1 stop18h 45mWestJet
Sat 7/63:20 pmSFO - KEF
2 stops33h 55mWestJet
Deal found 6/1$723
Mon 7/229:35 amKEF - SFO
2 stops35h 58mWestJet
Wed 7/313:20 pmSFO - KEF
2 stops57h 55mWestJet
Deal found 6/1$760
Thu 6/209:45 amKEF - SFO
1 stop32h 27mAir Canada
Sat 7/68:30 amSFO - KEF
1 stop17h 05mAir Canada
Deal found 6/1$782
Thu 6/209:45 amKEF - SFO
2 stops39h 05mAir Canada
Sat 7/61:15 pmSFO - KEF
2 stops36h 20mAir Canada
Deal found 6/1$785
Thu 6/2011:00 amKEF - SFO
1 stop14h 27mUnited Airlines
Sat 7/66:30 amSFO - KEF
1 stop19h 00mUnited Airlines
Deal found 6/1$794
Thu 6/209:45 amKEF - SFO
1 stop20h 27mAir Canada
Sat 7/68:30 amSFO - KEF
1 stop17h 05mAir Canada
Deal found 6/1$801

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 2,810,401 searches. Data last updated June 2, 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.
Tue 7/99:35 amKEF - SFO
1 stop33h 25mWestJet
Deal found 6/1$397
Tue 7/99:35 amKEF - SFO
2 stops34h 57mWestJet
Deal found 6/1$407
Tue 8/139:35 amKEF - SFO
1 stop18h 45mWestJet
Deal found 6/1$420
Tue 8/139:35 amKEF - SFO
2 stops34h 57mWestJet
Deal found 6/1$430
Sun 8/1110:25 amKEF - SFO
1 stop28h 48mMultiple Airlines
Deal found 6/1$572
Thu 7/254:25 pmKEF - SFO
2 stops22h 53mMultiple Airlines
Deal found 5/31$586
Sun 8/114:55 pmKEF - SFO
2 stops22h 16mMultiple Airlines
Deal found 6/1$628
Thu 11/2811:50 amKEF - SFO
1 stop34h 25mAmerican Airlines
Deal found 6/1$645
Thu 7/257:50 pmKEF - SFO
3 stops25h 43mMultiple Airlines
Deal found 5/31$654

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 2,810,401 searches. Data last updated June 2, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$622 - $1,241

Route

Depart

Return

Price

Reykjavik Keflavik IntlSan Francisco

KEF - SFO

KEFSFO

Reykjavik Keflavik Intl

Mon 7/22

2 stops35h 58m

San Francisco

Wed 7/31

1 stop17h 45m

$622

Reykjavik Keflavik IntlSan Francisco

KEF - SFO

KEFSFO

Reykjavik Keflavik Intl

Mon 7/22

1 stop18h 45m

San Francisco

Wed 7/31

1 stop17h 45m

$648

Reykjavik Keflavik IntlSan Francisco

KEF - SFO

KEFSFO

Reykjavik Keflavik Intl

Thu 6/20

1 stop14h 38m

San Francisco

Sat 7/6

2 stops33h 55m

$658

Reykjavik Keflavik IntlSan Francisco

KEF - SFO

KEFSFO

Reykjavik Keflavik Intl

Thu 6/20

1 stop32h 27m

San Francisco

Sat 7/6

1 stop17h 05m

$782

Reykjavik Keflavik IntlSan Francisco

KEF - SFO

KEFSFO

Reykjavik Keflavik Intl

Thu 6/20

2 stops39h 05m

San Francisco

Sat 7/6

2 stops36h 20m

$785

Reykjavik Keflavik IntlSan Francisco

KEF - SFO

KEFSFO

Reykjavik Keflavik Intl

Thu 6/20

1 stop14h 27m

San Francisco

Sat 7/6

1 stop19h 00m

$794

Reykjavik Keflavik IntlSan Francisco

KEF - SFO

KEFSFO

Reykjavik Keflavik Intl

Wed 6/19

1 stop22h 35m

San Francisco

Sat 7/6

1 stop21h 10m

$1,133

Reykjavik Keflavik IntlSan Francisco

KEF - SFO

KEFSFO

Reykjavik Keflavik Intl

Thu 6/20

2 stops35h 36m

San Francisco

Sat 7/6

2 stops20h 45m

$1,168

Reykjavik Keflavik IntlSan Francisco

KEF - SFO

KEFSFO

Reykjavik Keflavik Intl

Sun 7/21

1 stop26h 30m

San Francisco

Wed 7/31

1 stop26h 55m

$1,241

Flights are sorted by cheapest first

Deals found on 6/1

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

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 2, 2024.
Read through reviews of airlines operating flights from Reykjavik to San Francisco, such as WestJet, Air Canada and Lufthansa. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
7.9
Good
1,507 reviews

Comfort

7.7

Crew

8.4

Food

7.3

Boarding

7.9

Entertainment

7.2

Overall

7.9

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.

7.9
Good
1,507 reviews
7.9
Good
1,507 reviews

Comfort

7.7

Crew

8.4

Food

7.3

Boarding

7.9

Entertainment

7.2

Overall

7.9

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.

7.8
Good
1,368 reviews
7.9
Good
1,507 reviews

Comfort

7.7

Crew

8.4

Food

7.3

Boarding

7.9

Entertainment

7.2

Overall

7.9

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.

7.7
Good
1,016 reviews
7.9
Good
1,507 reviews

Comfort

7.7

Crew

8.4

Food

7.3

Boarding

7.9

Entertainment

7.2

Overall

7.9

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.

7.5
Good
1,728 reviews
7.9
Good
1,507 reviews

Comfort

7.7

Crew

8.4

Food

7.3

Boarding

7.9

Entertainment

7.2

Overall

7.9

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.

7.5
Good
2,861 reviews
7.9
Good
1,507 reviews

Comfort

7.7

Crew

8.4

Food

7.3

Boarding

7.9

Entertainment

7.2

Overall

7.9

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 $700 on Cheapflights?

    Yes, there are multiple flights from Reykjavik Keflavik Intl Airport to San Francisco for under $700. The cheapest flight booked recently is on WestJet for just $622, but on average you can expect to pay $1,407.

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

    According to our current data, WestJet ($622), Air Canada ($782), and United Airlines ($794) offers the cheapest pricing from Reykjavik Keflavik Intl Airport to San Francisco. These flights start at 29% lower than the current average price 3 months from now.

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

    The cheapest airline one-way is WestJet, with whom users have recently found tickets for as low as $397. However, be on the lookout for offers from American Airlines and Icelandair, as they are both options that can get you from Reykjavik Keflavik Intl Airport to San Francisco for a low price.

  • 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 6/1.

  • 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 $385). 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.

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.

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Keflavik Intl to San Francisco?

Cheapflights makes it easy to find Keflavik Intl to San Francisco flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

Why should you use Cheapflights to find cheap flight tickets from Keflavik Intl to San Francisco?

Millions of users choose and trust Cheapflights to book the best flight deals from Keflavik Intl to San Francisco for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

Can Cheapflights find flights from Keflavik Intl to San Francisco with no change fees?

Certainly. Search results for flights to San Francisco from Keflavik Intl shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

Can Cheapflights notify me if prices for flights from Keflavik Intl to San Francisco become cheaper?

Of course! You can now track prices for flights from Keflavik Intl to San Francisco and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

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