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$616+ Cheap flights from Keflavik Intl (KEF) to San Diego (SAN)

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 12/24. Fares are subject to change and may not be available on all flights or dates of travel.
KEF — SAN
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
1 adult, Economy
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Cheap flight deals from Keflavik Intl to San Diego

Discover tips and strategies to find the most affordable flight options for your journey from Keflavik Intl (KEF) to San Diego (SAN). 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 September 11, 2025.

Round-trip from

$789
(Justfly.com)

One-way from

$616
(Kiwi.com)
From Reykjavik Keflavik Intl to San Diego
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One-way flight from Reykjavik Keflavik Intl to San Diego
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Find flight deals from Keflavik Intl to San Diego

Cheapest flights from Keflavik Intl to San Diego
Explore the most affordable flight options available from Keflavik Intl to San Diego. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 11, 2025.

This Justfly.com deal was found by Cheapflights users on 9/11. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/208:10 pmKEF - SAN
1 stop21h 39mIcelandair
Fri 10/2411:59 amSAN - KEF
1 stop13h 46mIcelandair
Deal found 9/11$789
This Kiwi.com deal was found by Cheapflights users on 9/11. 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 10/203:05 pmKEF - SAN
2 stops27h 15mMultiple Airlines
Fri 10/249:53 pmSAN - KEF
1 stop25h 12mMultiple Airlines
Deal found 9/11$978
This Ovago deal was found by Cheapflights users on 9/11. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/2010:20 amKEF - SAN
2 stops39h 48mScandinavian Airlines
Fri 10/2410:00 amSAN - KEF
2 stops41h 45mScandinavian Airlines
Deal found 9/11$1,141
This oojo deal was found by Cheapflights users on 9/11. 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.
Sun 10/1912:25 amKEF - SAN
2 stops27h 24mLufthansa
Fri 10/246:00 pmSAN - KEF
2 stops23h 10mLufthansa
Deal found 9/11$1,278
This Kiwi.com deal was found by Cheapflights users on 9/10. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/104:30 pmKEF - SAN
1 stop14h 49mMultiple Airlines
Fri 11/218:15 amSAN - KEF
1 stop14h 30mMultiple Airlines
Deal found 9/10$2,252
This Kiwi.com deal was found by Cheapflights users on 9/11. 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 11/114:30 pmKEF - SAN
1 stop14h 49mMultiple Airlines
Sat 11/225:31 pmSAN - KEF
1 stop29h 14mMultiple Airlines
Deal found 9/11$2,253
This American Airlines deal was found by Cheapflights users on 9/11. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/1111:50 amKEF - SAN
2 stops30h 06mAmerican Airlines
Sat 11/221:23 pmSAN - KEF
2 stops19h 42mAmerican Airlines
Deal found 9/11$2,928
This KLM deal was found by Cheapflights users on 9/10. 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.
Mon 11/108:05 pmKEF - SAN
2 stops29h 49mKLM
Fri 11/2111:30 amSAN - KEF
2 stops47h 35mKLM
Deal found 9/10$4,105

Cheapflights Fare Finder

 
Customize your flight search to find flights from Keflavik Intl to San Diego 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 September 11, 2025.
Use the filters below to find and compare flights from Reykjavik Keflavik Intl Airport to San Diego that are best for you.

Fly from

Keflavik Intl

Fly to

San Diego

Route

Depart

Return

Price

ReykjavikSan Diego

KEF - SAN

KEFSAN

Reykjavik Keflavik Intl

Mon 10/20

8:10 pm-10:49 am

1 stop21h 39m

San Diego

Fri 10/24

11:59 am-8:45 am

1 stop13h 46m

$789

ReykjavikSan Diego

KEF - SAN

KEFSAN

Reykjavik Keflavik Intl

Mon 10/20

3:05 pm-11:20 am

2 stops27h 15m

San Diego

Fri 10/24

9:53 pm-6:05 am

1 stop25h 12m

$978

ReykjavikSan Diego

KEF - SAN

KEFSAN

Reykjavik Keflavik Intl

Mon 10/20

10:20 am-7:08 pm

2 stops39h 48m

San Diego

Fri 10/24

10:00 am-10:45 am

2 stops41h 45m

$1,141

ReykjavikSan Diego

KEF - SAN

KEFSAN

Reykjavik Keflavik Intl

Sun 10/19

12:25 am-8:49 pm

2 stops27h 24m

San Diego

Fri 10/24

6:00 pm-12:10 am

2 stops23h 10m

$1,278

ReykjavikSan Diego

KEF - SAN

KEFSAN

Reykjavik Keflavik Intl

Mon 11/10

4:30 pm-11:19 pm

1 stop14h 49m

San Diego

Fri 11/21

8:15 am-6:45 am

1 stop14h 30m

$2,252

ReykjavikSan Diego

KEF - SAN

KEFSAN

Reykjavik Keflavik Intl

Tue 11/11

4:30 pm-11:19 pm

1 stop14h 49m

San Diego

Sat 11/22

5:31 pm-6:45 am

1 stop29h 14m

$2,253

ReykjavikSan Diego

KEF - SAN

KEFSAN

Reykjavik Keflavik Intl

Tue 11/11

11:50 am-9:56 am

2 stops30h 06m

San Diego

Sat 11/22

1:23 pm-5:05 pm

2 stops19h 42m

$2,928

ReykjavikSan Diego

KEF - SAN

KEFSAN

Reykjavik Keflavik Intl

Mon 11/10

8:05 pm-5:54 pm

2 stops29h 49m

San Diego

Fri 11/21

11:30 am-7:05 pm

2 stops47h 35m

$4,105

ReykjavikSan Diego

KEF - SAN

KEFSAN

Reykjavik Keflavik Intl

Wed 12/24

6:05 pm-10:40 am

2 stops48h 35m

$616

ReykjavikSan Diego

KEF - SAN

KEFSAN

Reykjavik Keflavik Intl

Fri 9/19

7:55 pm-12:49 pm

1 stop23h 54m

$745

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/11

Showing 1-10 of 14 results
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Best time to book a flight from Keflavik Intl to San Diego

Have a flexible travel schedule? Discover the best time to fly to San Diego 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.

Related info for your journey

Find useful and relevant information for your journey from Keflavik Intl to San Diego. 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 Diego from Reykjavik Keflavik Intl?

    For a flight from Reykjavik Keflavik Intl to San Diego, you will be flying into San Diego. San Diego (SAN) is just 2.6 mi from the center of the city. San Diego is the only San Diego airport and it handles 0 inbound flights from Reykjavik Keflavik Intl per day. 0 airlines have flights to San Diego from Reykjavik Keflavik Intl on a regular basis.

  • How long is the flight from Reykjavik Keflavik Intl Airport to San Diego?

    A quick flight from Reykjavik Keflavik Intl Airport to San Diego can take about 21h 39m. Icelandair provides one of the quickest options available for as low as $789. Airlines will cover a distance of 4339 mi. This flight may include one or multiple stops.

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

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

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

    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 Diego.

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

    Yes. Cheapflights offers flight deals from Keflavik Intl to San Diego 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 Reykjavik Keflavik Intl Airport to San Diego?

    Currently, August is the cheapest month in which you can book a flight from Reykjavik Keflavik Intl Airport to San Diego (average of $286). Flying from Reykjavik Keflavik Intl Airport to San Diego in March is currently the most expensive (average of $366). 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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