HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Keflavik Intl

$247+ Cheap flights from San Diego (SAN) 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 8/10. Fares are subject to change and may not be available on all flights or dates of travel.
SAN — KEF
May 5 — May 121
Mon 5/5
Mon 5/12
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from San Diego to Keflavik Intl with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheapflights Tip: The best prices from San Diego to Reykjavik Keflavik Intl are usually found in September or October, booked 26 days in advance, depart on a Wednesday or Tuesday and return on a Monday

Cheap flight deals from San Diego to Keflavik Intl

Discover tips and strategies to find the most affordable flight options for your journey from San Diego (SAN) to Keflavik Intl (KEF). 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 April 30, 2025.

Most accurate provider

AranGrant
3 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$616
(United Airlines)

One-way from

$247
(Cheapflightsfares)

Popular in

July

Cheapest in

September

Average price

$922
Provider with most accurate pricing for San Diego-Reykjavik Keflavik Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for San Diego-Reykjavik Keflavik Intl flights.
Search Deals
From San Diego to Reykjavik Keflavik Intl
Search Deals
One-way flight from San Diego to Reykjavik Keflavik Intl
Search Deals
Highest demand for flights based on searches. 6% potential increase in price ($68 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($12 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 2025
Search Deals

Find flight deals from San Diego to Keflavik Intl

Cheapest flights from San Diego to Keflavik Intl
Explore the most affordable flight options available from San Diego to Keflavik Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 30, 2025.

This United Airlines deal was found by Cheapflights users on 4/28. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/42:05 pmSAN - KEF
1 stop11h 25mUnited Airlines
Fri 8/229:30 amKEF - SAN
2 stops35h 10mUnited Airlines
Deal found 4/28$616
This Booking.com deal was found by Cheapflights users on 4/28. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/46:30 amSAN - KEF
2 stops18h 45mAir Canada
Fri 8/229:30 amKEF - SAN
2 stops37h 20mAir Canada
Deal found 4/28$623
This Kiwi.com deal was found by Cheapflights users on 4/27. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/56:25 amSAN - KEF
2 stops18h 50mMultiple Airlines
Wed 7/169:35 amKEF - SAN
1 stop31h 55mMultiple Airlines
Deal found 4/27$626
This Kiwi.com deal was found by Cheapflights users on 4/29. 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.
Thu 6/51:00 pmSAN - KEF
2 stops36h 15mWestJet
Tue 6/179:35 amKEF - SAN
1 stop34h 45mWestJet
Deal found 4/29$656
This Delta deal was found by Cheapflights users on 4/28. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/46:15 amSAN - KEF
2 stops17h 45mDelta
Fri 8/158:50 amKEF - SAN
2 stops21h 04mDelta
Deal found 4/28$729
This Virgin Atlantic deal was found by Cheapflights users on 4/27. 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 Virgin Atlantic is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/76:15 amSAN - KEF
2 stops20h 15mVirgin Atlantic
Mon 10/1311:25 amKEF - SAN
2 stops18h 06mVirgin Atlantic
Deal found 4/27$777
This Ovago deal was found by Cheapflights users on 4/29. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/46:30 amSAN - KEF
1 stop19h 00mLufthansa
Thu 8/141:15 amKEF - SAN
1 stop21h 10mLufthansa
Deal found 4/29$778
This SmartFares deal was found by Cheapflights users on 4/29. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/247:50 pmSAN - KEF
1 stop30h 50mBritish Airways
Wed 10/110:55 amKEF - SAN
1 stop34h 55mBritish Airways
Deal found 4/29$804
This Scandinavian Airlines deal was found by Cheapflights users on 4/29. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/2411:05 amSAN - KEF
2 stops22h 15mScandinavian Airlines
Wed 10/17:40 amKEF - SAN
2 stops23h 41mScandinavian Airlines
Deal found 4/29$853
This Ovago deal was found by Cheapflights users on 4/29. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/236:40 amSAN - KEF
2 stops33h 40mAustrian Airlines
Sat 8/3012:10 amKEF - SAN
2 stops25h 10mAustrian Airlines
Deal found 4/29$898
This KLM deal was found by Cheapflights users on 4/28. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/238:22 amSAN - KEF
1 stop15h 38mKLM
Wed 7/309:30 amKEF - SAN
1 stop18h 13mKLM
Deal found 4/28$909
This FlightHub deal was found by Cheapflights users on 4/27. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/49:35 pmSAN - KEF
1 stop17h 10mIcelandair
Tue 7/158:10 pmKEF - SAN
1 stop19h 59mIcelandair
Deal found 4/27$931

Cheapflights Fare Finder

Customize your flight search to find flights from San Diego 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 April 30, 2025.
Use the filters below to find and compare flights from San Diego to Reykjavik Keflavik Intl Airport that are best for you.

Fly from

San Diego

Fly to

Keflavik Intl

Route

Depart

Return

Price

San DiegoReykjavik

SAN - KEF

SANKEF

San Diego

Mon 8/4

6:30 am-8:30 am

1 stop19h 00m

Reykjavik Keflavik Intl

Thu 8/21

9:30 am-3:01 pm

2 stops36h 31m

$616

San DiegoReykjavik

SAN - KEF

SANKEF

San Diego

Mon 8/4

6:30 am-8:15 am

2 stops18h 45m

Reykjavik Keflavik Intl

Fri 8/22

9:30 am-3:50 pm

2 stops37h 20m

$623

San DiegoReykjavik

SAN - KEF

SANKEF

San Diego

Sat 7/5

6:25 am-8:15 am

2 stops18h 50m

Reykjavik Keflavik Intl

Wed 7/16

9:35 am-10:30 am

1 stop31h 55m

$626

San DiegoReykjavik

SAN - KEF

SANKEF

San Diego

Thu 6/5

1:00 pm-8:15 am

2 stops36h 15m

Reykjavik Keflavik Intl

Tue 6/17

9:35 am-1:20 pm

1 stop34h 45m

$656

San DiegoReykjavik

SAN - KEF

SANKEF

San Diego

Mon 8/4

6:15 am-7:00 am

2 stops17h 45m

Reykjavik Keflavik Intl

Fri 8/15

8:50 am-10:54 pm

2 stops21h 04m

$729

San DiegoReykjavik

SAN - KEF

SANKEF

San Diego

Tue 10/7

6:15 am-9:30 am

2 stops20h 15m

Reykjavik Keflavik Intl

Mon 10/13

11:25 am-10:31 pm

2 stops18h 06m

$777

San DiegoReykjavik

SAN - KEF

SANKEF

San Diego

Mon 8/4

6:30 am-8:30 am

1 stop19h 00m

Reykjavik Keflavik Intl

Thu 8/14

1:15 am-3:25 pm

1 stop21h 10m

$778

San DiegoReykjavik

SAN - KEF

SANKEF

San Diego

Wed 9/24

7:50 pm-9:40 am

1 stop30h 50m

Reykjavik Keflavik Intl

Wed 10/1

10:55 am-2:50 pm

1 stop34h 55m

$804

San DiegoReykjavik

SAN - KEF

SANKEF

San Diego

Wed 9/24

11:05 am-4:20 pm

2 stops22h 15m

Reykjavik Keflavik Intl

Wed 10/1

7:40 am-12:21 am

2 stops23h 41m

$853

San DiegoReykjavik

SAN - KEF

SANKEF

San Diego

Sat 8/23

6:40 am-11:20 pm

2 stops33h 40m

Reykjavik Keflavik Intl

Sat 8/30

12:10 am-6:20 pm

2 stops25h 10m

$898

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/29

Showing 1-10 of 19 results
1
2

Compare providers for flights from San Diego to Keflavik Intl

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from San Diego to Keflavik Intl in April.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*2 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on San Diego-Reykjavik Keflavik Intl Airport flights, users find the pricing of AranGrant to be most consistent on Cheapflights vs. AranGrant Users can find the same prices on San Diego-Reykjavik Keflavik Intl Airport flight deals on Cheapflights vs. AranGrant >95% of the time. Price accuracy is based on data collected from San Diego-Reykjavik Keflavik Intl Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on San Diego-Reykjavik Keflavik Intl Airport flights, Cheapflights users trust AranGrant the most. AranGrant has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for San Diego-Reykjavik Keflavik Intl Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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

Have a flexible travel schedule? Discover the best time to fly to Keflavik Intl from San Diego 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 San Diego to Reykjavik Keflavik Intl Airport

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

Use this chart to determine the optimal time to book a round-trip flight from San Diego to Keflavik Intl. Price data was last updated on April 25, 2025.

To ensure you get the cheapest price possible for a flight from San Diego to Reykjavik Keflavik Intl Airport, you should look to book at least 26 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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

Currently, November is the cheapest month in which you can book a flight from San Diego to Reykjavik Keflavik Intl Airport (average of $328). Flying from San Diego to Reykjavik Keflavik Intl Airport in July is currently the most expensive (average of $651). 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 SAN to KEF?

Find hourly flight availability from San Diego 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 April 30, 2025.

A simple way to save on the total cost of your ticket is to fly from San Diego to Reykjavik Keflavik Intl Airport in the morning. If you’re flexible enough to do this you can expect to save up to 18% on your trip compared to booking a flight in the afternoon.

Rainfall in Keflavik Intl by month

Plan your trip to Keflavik Intl by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Reykjavik Keflavik Intl Airport ranges from 1.6 - 3.1 inches per month. January is typically the wettest month, when rainfall can reach 3.1 in. May is typically the driest time to visit Reykjavik Keflavik Intl Airport when rainfall is around 1.6 in.

Temperature in Keflavik Intl by month

Plan your trip to Keflavik Intl by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Reykjavik Keflavik Intl Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 51.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 32.0 F).

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 April 30, 2025.
Peruse reviews from past customers who have flown with Alaska Airlines, Delta and KLM from San Diego to Reykjavik to help guide your decision. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
9,961 reviews

Boarding

8.2

Comfort

7.9

Food

7.1

Entertainment

7.1

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Alaska Airlines
8.0
Very good
9,961 reviews
Alaska Airlines
8.0
Very good
9,961 reviews

Boarding

8.2

Comfort

7.9

Food

7.1

Entertainment

7.1

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Delta
8.0
Very good
7,929 reviews
Alaska Airlines
8.0
Very good
9,961 reviews

Boarding

8.2

Comfort

7.9

Food

7.1

Entertainment

7.1

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
KLM
7.8
Good
1,334 reviews
Alaska Airlines
8.0
Very good
9,961 reviews

Boarding

8.2

Comfort

7.9

Food

7.1

Entertainment

7.1

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Austrian Airlines
7.6
Good
780 reviews
Alaska Airlines
8.0
Very good
9,961 reviews

Boarding

8.2

Comfort

7.9

Food

7.1

Entertainment

7.1

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
United Airlines
7.4
Good
8,696 reviews
Alaska Airlines
8.0
Very good
9,961 reviews

Boarding

8.2

Comfort

7.9

Food

7.1

Entertainment

7.1

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Related info for your journey

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

    San Diego (SAN) is the airport you will fly out of if you book a flight from San Diego to Reykjavik Keflavik Intl. You should not have trouble finding flights to Reykjavik Keflavik Intl from San Diego; the airport handles an average of 0 outbound flights to Reykjavik Keflavik Intl per day. You should also have plenty of airline options to choose from since 4 airlines have flights from the San Diego airport to Reykjavik Keflavik Intl. It is only a 2.6 mi journey to San Diego (SAN) from San Diego’s city center.

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

    United Airlines, at $616, was found to be the cheapest airline from San Diego to Reykjavik Keflavik Intl Airport.Alternate airlines to your destination round-trip include Air Canada and WestJet. These flights start at 35% lower than the current average price 3 months from now.

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

    One-way options have recently been found by users for as low as $247 on WestJet. Other airlines that offer cheap prices include United Airlines from $550 and Air Canada from $552 one-way.

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

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

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

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

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

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

    Currently, November is the cheapest month in which you can book a flight from San Diego to Reykjavik Keflavik Intl Airport (average of $328). Flying from San Diego to Reykjavik Keflavik Intl Airport in July is currently the most expensive (average of $651). 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 San Diego?

Book flights to San Diego if you plan to visit one of these locations
Keflavik

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Top 4 airlines flying from San Diego to Keflavik Intl

Discover the top 4 airlines that operate flights from San Diego 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 April 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$578Average$851FlexibilityNo cancel feeOn-time67%
DeltaCheapest$640Average$920FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$641Average$812FlexibilityNo cancel feeOn-time69%
IcelandairCheapest$890Average$1,027FlexibilityNo cancel feeOn-time76%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.