HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Keflavik Intl

$370+ Cheap flights from Riverside, 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 2/4. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — KEF
Jan 14 — Jan 211
Wed 1/14
Wed 1/21
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Riverside 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 Riverside to Reykjavik Keflavik Intl are usually found in July or August, booked 22 days in advance, depart on a Tuesday or Monday and return on a Wednesday

Cheap flight deals from Riverside to Keflavik Intl

Cheapest flights from Riverside to Keflavik Intl
Explore the most affordable flight options available from Riverside to Keflavik Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 15, 2025.

This FlightHub deal was found by Cheapflights users on 12/14. 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.
Mon 12/2910:15 pmLAX - KEF
1 stop23h 50mMultiple Airlines
Mon 1/125:00 pmKEF - LAX
1 stop14h 56mMultiple Airlines
Deal found 12/14$897
This Ovago deal was found by Cheapflights users on 12/14. 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.
Wed 12/317:10 pmLAX - KEF
1 stop34h 10mMultiple Airlines
Thu 1/83:10 pmKEF - LAX
2 stops41h 49mMultiple Airlines
Deal found 12/14$1,004
This FlightHub deal was found by Cheapflights users on 12/15. 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.
Mon 12/293:00 pmLAX - KEF
2 stops63h 15mLufthansa
Sat 1/102:20 pmKEF - LAX
2 stops54h 45mLufthansa
Deal found 12/15$1,071
This Kiwi.com deal was found by Cheapflights users on 12/13. 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 12/3111:59 pmLAX - KEF
1 stop22h 46mMultiple Airlines
Fri 1/95:00 pmKEF - LAX
2 stops27h 48mMultiple Airlines
Deal found 12/13$1,098
This FlightHub deal was found by Cheapflights users on 12/14. 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.
Mon 12/2910:15 pmLAX - KEF
1 stop23h 50mMultiple Airlines
Sat 1/105:00 pmKEF - LAX
1 stop14h 59mMultiple Airlines
Deal found 12/14$1,120
This oojo deal was found by Cheapflights users on 12/14. 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 12/149:09 pmLAX - KEF
1 stop25h 06mIcelandair
Sun 12/219:55 amKEF - LAX
1 stop23h 02mIcelandair
Deal found 12/14$1,236
This Scandinavian Airlines deal was found by Cheapflights users on 12/15. 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.
Mon 12/296:35 amLAX - KEF
2 stops26h 15mScandinavian Airlines
Mon 1/127:35 amKEF - LAX
2 stops23h 46mScandinavian Airlines
Deal found 12/15$1,251

Find flight deals from Riverside to Keflavik Intl

Keep the following information in mind while searching for Riverside to Keflavik Intl flight deals. Data was last updated December 15, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$518
(Lufthansa)

One-way from

$370
(Kiwi.com)

Popular in

December

Cheapest in

July

Average price

$1,138
Provider with most accurate pricing for Los Angeles-Reykjavik (REK) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Los Angeles-Reykjavik (REK) flights.
Search Deals
From Riverside to Reykjavik Keflavik Intl
Search Deals
One-way flight from Riverside to Reykjavik Keflavik Intl
Search Deals
Highest demand for flights based on searches. 7% potential increase in price ($82 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($15 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Riverside 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 December 15, 2025.
Use the filters below to find and compare flights from Riverside to Reykjavik Keflavik Intl Airport that are best for you.

Fly from

Riverside

Fly to

Keflavik Intl

Route

Depart

Return

Price

Los AngelesReykjavik

LAX - KEF

LAXKEF

Los Angeles

Thu 1/15

8:33 am-2:20 pm

2 stops21h 47m

Reykjavik Keflavik Intl

Sat 1/24

3:10 pm-3:15 pm

1 stop32h 05m

$518

Los AngelesReykjavik

LAX - KEF

LAXKEF

Los Angeles

Wed 3/4

5:30 pm-1:10 am

1 stop23h 40m

Reykjavik Keflavik Intl

Wed 3/11

2:05 pm-5:35 pm

1 stop34h 30m

$562

Los AngelesReykjavik

LAX - KEF

LAXKEF

Los Angeles

Mon 4/13

1:20 pm-4:25 pm

2 stops20h 05m

Reykjavik Keflavik Intl

Thu 4/23

8:35 am-5:10 pm

1 stop15h 35m

$707

Los AngelesReykjavik

LAX - KEF

LAXKEF

Los Angeles

Wed 4/15

1:30 pm-7:50 am

2 stops35h 20m

Reykjavik Keflavik Intl

Wed 4/22

8:35 am-5:10 pm

1 stop15h 35m

$713

Los AngelesReykjavik

LAX - KEF

LAXKEF

Los Angeles

Sun 4/5

7:45 am-9:30 am

1 stop18h 45m

Reykjavik Keflavik Intl

Sun 4/26

11:25 am-11:49 pm

2 stops19h 24m

$752

Los AngelesReykjavik

LAX - KEF

LAXKEF

Los Angeles

Mon 4/6

6:50 pm-7:50 am

1 stop30h 00m

Reykjavik Keflavik Intl

Mon 4/20

8:35 am-5:10 pm

1 stop15h 35m

$785

Los AngelesReykjavik

LAX - KEF

LAXKEF

Los Angeles

Thu 4/9

10:55 pm-9:30 am

1 stop27h 35m

Reykjavik Keflavik Intl

Mon 4/13

11:25 am-12:57 am

1 stop20h 32m

$789

Los AngelesReykjavik

LAX - KEF

LAXKEF

Los Angeles

Thu 4/16

6:00 am-9:30 am

1 stop20h 30m

Reykjavik Keflavik Intl

Sun 4/26

11:25 am-8:29 pm

1 stop16h 04m

$798

Los AngelesReykjavik

LAX - KEF

LAXKEF

Los Angeles

Mon 5/4

10:45 am-9:30 am

1 stop15h 45m

Reykjavik Keflavik Intl

Wed 5/13

8:50 am-7:02 pm

1 stop17h 12m

$805

Los AngelesReykjavik

LAX - KEF

LAXKEF

Los Angeles

Wed 2/4

1:48 pm-6:20 pm

3 stops44h 32m

$370

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/13

Showing 1-10 of 15 results
1
2

Best time to book a flight from Riverside to Keflavik Intl

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

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

Use this chart to determine the optimal time to book a round-trip flight from Riverside to Keflavik Intl. Price data was last updated on December 12, 2025.

Booking 22 days in advance of your planned departure date is, on average, the best time to get cheap flights from Riverside 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 Riverside to Reykjavik Keflavik Intl Airport?

Currently, January is the cheapest month in which you can book a flight from Riverside to Reykjavik Keflavik Intl Airport (average of $519). Flying from Riverside to Reykjavik Keflavik Intl Airport in December is currently the most expensive (average of $885). 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 R1V to KEF?

Find hourly flight availability from Riverside 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 December 15, 2025.

Unlike in the evening, when flights are generally more expensive, you can save up to 17% on flights from Riverside to Reykjavik Keflavik Intl Airport by exploring options for tickets in the morning.

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

Use this chart to determine the cheapest time to fly round-trip from Riverside to Keflavik Intl. Price data was last updated on December 16, 2024.

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

How much does it cost to fly round-trip from Riverside to Reykjavik Keflavik Intl Airport?

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 December 15, 2025.
Get a feel of what it's like to fly with Alaska Airlines, Delta, and United Airlines from Riverside to Reykjavik Keflavik Intl Airport by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
11,452 reviews

Overall

8.0

Crew

8.5

Food

7.1

Boarding

8.1

Comfort

7.8

Entertainment

7.0

Reviews

1 / 20
2.0
Mediocre

Art,Dec 2025

SAN - OGG

It was a five hour flight and my seat did not recline. I have had three back surgeries and I’m solid bone for my L3 vertebrae all the way to my tailbone. My body has never hurt so much. There was no TV on this flight and only a small can of soda was free.
Alaska Airlines
8.0
Very good
11,452 reviews
Alaska Airlines
8.0
Very good
11,452 reviews

Overall

8.0

Crew

8.5

Food

7.1

Boarding

8.1

Comfort

7.8

Entertainment

7.0

Reviews

1 / 20
2.0
Mediocre

Art,Dec 2025

SAN - OGG

It was a five hour flight and my seat did not recline. I have had three back surgeries and I’m solid bone for my L3 vertebrae all the way to my tailbone. My body has never hurt so much. There was no TV on this flight and only a small can of soda was free.
Delta
7.9
Good
8,008 reviews
Alaska Airlines
8.0
Very good
11,452 reviews

Overall

8.0

Crew

8.5

Food

7.1

Boarding

8.1

Comfort

7.8

Entertainment

7.0

Reviews

1 / 20
2.0
Mediocre

Art,Dec 2025

SAN - OGG

It was a five hour flight and my seat did not recline. I have had three back surgeries and I’m solid bone for my L3 vertebrae all the way to my tailbone. My body has never hurt so much. There was no TV on this flight and only a small can of soda was free.
United Airlines
7.4
Good
9,092 reviews
Alaska Airlines
8.0
Very good
11,452 reviews

Overall

8.0

Crew

8.5

Food

7.1

Boarding

8.1

Comfort

7.8

Entertainment

7.0

Reviews

1 / 20
2.0
Mediocre

Art,Dec 2025

SAN - OGG

It was a five hour flight and my seat did not recline. I have had three back surgeries and I’m solid bone for my L3 vertebrae all the way to my tailbone. My body has never hurt so much. There was no TV on this flight and only a small can of soda was free.
WestJet
7.2
Good
3,202 reviews
Alaska Airlines
8.0
Very good
11,452 reviews

Overall

8.0

Crew

8.5

Food

7.1

Boarding

8.1

Comfort

7.8

Entertainment

7.0

Reviews

1 / 20
2.0
Mediocre

Art,Dec 2025

SAN - OGG

It was a five hour flight and my seat did not recline. I have had three back surgeries and I’m solid bone for my L3 vertebrae all the way to my tailbone. My body has never hurt so much. There was no TV on this flight and only a small can of soda was free.
Icelandair
7.0
Good
590 reviews
Alaska Airlines
8.0
Very good
11,452 reviews

Overall

8.0

Crew

8.5

Food

7.1

Boarding

8.1

Comfort

7.8

Entertainment

7.0

Reviews

1 / 20
2.0
Mediocre

Art,Dec 2025

SAN - OGG

It was a five hour flight and my seat did not recline. I have had three back surgeries and I’m solid bone for my L3 vertebrae all the way to my tailbone. My body has never hurt so much. There was no TV on this flight and only a small can of soda was free.

Related info for your journey

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

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

    Lufthansa, Finnair, and British Airways can get you from Riverside to Reykjavik Keflavik Intl Airport in just under 20h 05m. Your travel time can differ by up to 15h 15m. Riverside and Reykjavik Keflavik Intl Airport are separated by a distance of 4301 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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

    To fly one-way, consider booking your trip with WestJet, which is currently one of the cheapest options available, starting at $245. KLM flights start at $529 while deals on Air Canada start at $531 one-way.

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

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

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

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

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

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

    Currently, January is the cheapest month in which you can book a flight from Riverside to Reykjavik Keflavik Intl Airport (average of $519). Flying from Riverside to Reykjavik Keflavik Intl Airport in December is currently the most expensive (average of $885). 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

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 10 airlines flying from Riverside to Keflavik Intl

Discover the top 10 airlines that operate flights from Riverside 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 December 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
WestJetCheapest$526Average$616FlexibilityNo cancel feeOn-time60%
Alaska AirlinesCheapest$536Average$1,096FlexibilityNo cancel feeOn-time75%
American AirlinesCheapest$601Average$689FlexibilityNo cancel feeOn-time71%
British AirwaysCheapest$604Average$820FlexibilityNo cancel feeOn-time70%
DeltaCheapest$651Average$890FlexibilityNo cancel feeOn-timeN/A
Air CanadaCheapest$681Average$859FlexibilityNo cancel feeOn-time67%
United AirlinesCheapest$683Average$893FlexibilityNo cancel feeOn-time69%
KLMCheapest$730Average$943FlexibilityNo cancel feeOn-time75%
Air FranceCheapest$740Average$877FlexibilityNo cancel feeOn-time77%
Virgin AtlanticCheapest$740Average$943FlexibilityNo cancel feeOn-time72%

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.