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Keflavik Intl

$992+ Cheap flights from Santa Rosa (STS) to Keflavik Intl (KEF)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/9. Fares are subject to change and may not be available on all flights or dates of travel.
STS — KEF
Nov 19 — Nov 261
Wed 11/19
Wed 11/26
1 adult, Economy
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Cheap flight deals from Santa Rosa to Keflavik Intl

Discover tips and strategies to find the most affordable flight options for your journey from Santa Rosa (STS) 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 October 20, 2025.

Most accurate provider

AranGrant
3 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$992
(American Airlines)

Popular in

December

Cheapest in

August

Average price

$1,069
Provider with most accurate pricing for Santa Rosa Sonoma County-Reykjavik Keflavik Intl flight deals.
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Provider most trusted by Cheapflights users for Santa Rosa Sonoma County-Reykjavik Keflavik Intl flights.
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From Santa Rosa Sonoma County to Reykjavik Keflavik Intl
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Highest demand for flights based on searches. 10% potential increase in price ($119 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($24 potential savings vs. average RT price).
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Average for round-trip flights in October 2025
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Find flight deals from Santa Rosa to Keflavik Intl

Cheapest flights from Santa Rosa to Keflavik Intl
Explore the most affordable flight options available from Santa Rosa to Keflavik Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 20, 2025.

This Kiwi.com deal was found by Cheapflights users on 10/19. 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 10/202:30 pmSTS - KEF
1 stop32h 45mMultiple Airlines
Thu 10/304:55 pmKEF - STS
2 stops38h 02mMultiple Airlines
Deal found 10/19$1,874
This oojo deal was found by Cheapflights users on 10/19. 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.
Mon 10/2012:09 pmSTS - KEF
1 stop10h 46mIcelandair
Thu 10/305:00 pmKEF - STS
1 stop12h 05mIcelandair
Deal found 10/19$2,175
This American Airlines deal was found by Cheapflights users on 10/19. 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.
Sat 12/273:53 pmSTS - KEF
2 stops35h 02mAmerican Airlines
Sun 1/45:55 pmKEF - STS
2 stops38h 23mAmerican Airlines
Deal found 10/19$2,259
This American Airlines deal was found by Cheapflights users on 10/19. 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.
Fri 12/264:21 pmSTS - KEF
2 stops34h 19mAmerican Airlines
Sun 1/45:55 pmKEF - STS
2 stops38h 23mAmerican Airlines
Deal found 10/19$2,467
This American Airlines deal was found by Cheapflights users on 10/19. 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.
Wed 12/247:00 amSTS - KEF
2 stops43h 55mAmerican Airlines
Wed 12/3111:50 amKEF - STS
2 stops44h 28mAmerican Airlines
Deal found 10/19$2,482
This American Airlines deal was found by Cheapflights users on 10/19. 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 12/233:53 pmSTS - KEF
2 stops59h 02mAmerican Airlines
Wed 12/3111:50 amKEF - STS
2 stops44h 28mAmerican Airlines
Deal found 10/19$2,491
This American Airlines deal was found by Cheapflights users on 10/19. 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.
Mon 12/227:00 amSTS - KEF
2 stops43h 50mAmerican Airlines
Wed 12/3111:50 amKEF - STS
2 stops44h 28mAmerican Airlines
Deal found 10/19$2,511
This American Airlines deal was found by Cheapflights users on 10/19. 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.
Fri 12/264:21 pmSTS - KEF
2 stops34h 19mAmerican Airlines
Thu 1/111:45 amKEF - STS
2 stops44h 33mAmerican Airlines
Deal found 10/19$2,565
This American Airlines deal was found by Cheapflights users on 10/19. 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.
Fri 12/267:00 amSTS - KEF
2 stops43h 40mAmerican Airlines
Wed 12/3111:50 amKEF - STS
2 stops44h 28mAmerican Airlines
Deal found 10/19$2,581
This American Airlines deal was found by Cheapflights users on 10/19. 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.
Thu 12/253:53 pmSTS - KEF
2 stops58h 47mAmerican Airlines
Wed 12/3111:50 amKEF - STS
2 stops44h 28mAmerican Airlines
Deal found 10/19$2,590
This American Airlines deal was found by Cheapflights users on 10/19. 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.
Wed 12/247:00 amSTS - KEF
2 stops43h 55mAmerican Airlines
Sun 1/45:55 pmKEF - STS
2 stops38h 23mAmerican Airlines
Deal found 10/19$2,592
This American Airlines deal was found by Cheapflights users on 10/19. 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 12/233:53 pmSTS - KEF
2 stops59h 02mAmerican Airlines
Sun 1/45:55 pmKEF - STS
2 stops38h 23mAmerican Airlines
Deal found 10/19$2,601

Cheapflights Fare Finder

 
Customize your flight search to find flights from Santa Rosa 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 October 20, 2025.
Use the filters below to find and compare flights from Santa Rosa to Reykjavik Keflavik Intl Airport that are best for you.

Fly from

Santa Rosa

Fly to

Keflavik Intl

Route

Depart

Return

Price

Santa RosaReykjavik

STS - KEF

STSKEF

Santa Rosa Sonoma County

Fri 1/9

12:55 pm-10:40 am

2 stops37h 45m

Reykjavik Keflavik Intl

Thu 1/15

11:45 am-12:25 pm

2 stops56h 40m

$992

Santa RosaReykjavik

STS - KEF

STSKEF

Santa Rosa Sonoma County

Sat 12/27

3:53 pm-10:55 am

2 stops35h 02m

Reykjavik Keflavik Intl

Sun 1/4

5:55 pm-12:18 am

2 stops38h 23m

$2,259

Santa RosaReykjavik

STS - KEF

STSKEF

Santa Rosa Sonoma County

Fri 1/9

7:00 am-10:40 am

2 stops43h 40m

Reykjavik Keflavik Intl

Sun 1/11

5:55 pm-10:58 pm

2 stops37h 03m

$2,453

Santa RosaReykjavik

STS - KEF

STSKEF

Santa Rosa Sonoma County

Sat 1/10

12:55 pm-10:55 am

2 stops38h 00m

Reykjavik Keflavik Intl

Wed 1/14

11:50 am-10:58 pm

2 stops43h 08m

$2,453

Santa RosaReykjavik

STS - KEF

STSKEF

Santa Rosa Sonoma County

Fri 1/9

12:55 pm-10:40 am

2 stops37h 45m

Reykjavik Keflavik Intl

Wed 1/14

11:50 am-10:58 pm

2 stops43h 08m

$2,453

Santa RosaReykjavik

STS - KEF

STSKEF

Santa Rosa Sonoma County

Sat 1/10

7:00 am-10:55 am

2 stops43h 55m

Reykjavik Keflavik Intl

Thu 1/15

11:45 am-10:58 pm

2 stops43h 13m

$2,453

Santa RosaReykjavik

STS - KEF

STSKEF

Santa Rosa Sonoma County

Sat 1/10

7:00 am-10:55 am

2 stops43h 55m

Reykjavik Keflavik Intl

Tue 1/13

11:50 am-9:56 am

2 stops54h 06m

$2,462

Santa RosaReykjavik

STS - KEF

STSKEF

Santa Rosa Sonoma County

Fri 1/9

7:00 am-10:40 am

2 stops43h 40m

Reykjavik Keflavik Intl

Tue 1/13

11:50 am-9:56 am

2 stops54h 06m

$2,462

Santa RosaReykjavik

STS - KEF

STSKEF

Santa Rosa Sonoma County

Fri 1/9

4:23 pm-10:40 am

2 stops34h 17m

Reykjavik Keflavik Intl

Mon 1/12

11:50 am-12:25 pm

2 stops56h 35m

$2,465

Santa RosaReykjavik

STS - KEF

STSKEF

Santa Rosa Sonoma County

Fri 12/26

4:21 pm-10:40 am

2 stops34h 19m

Reykjavik Keflavik Intl

Sun 1/4

5:55 pm-12:18 am

2 stops38h 23m

$2,467

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/18

Showing 1-10 of 12 results
1
2
  • Most accurate provider: When it comes to deals on Santa Rosa-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 Santa Rosa-Reykjavik Keflavik Intl Airport flight deals on Cheapflights vs. AranGrant >95% of the time. Price accuracy is based on data collected from Santa Rosa-Reykjavik Keflavik Intl Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Santa Rosa-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 Santa Rosa-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 Santa Rosa to Keflavik Intl

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

What is the cheapest month to book a flight from Santa Rosa to Reykjavik Keflavik Intl Airport?

Currently, July is the cheapest month in which you can book a flight from Santa Rosa to Reykjavik Keflavik Intl Airport (average of $537). Flying from Santa Rosa to Reykjavik Keflavik Intl Airport in January is currently the most expensive (average of $853). 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.

Related info for your journey

Find useful and relevant information for your journey from Santa Rosa 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 Santa Rosa to Reykjavik Keflavik Intl?

    Most people fly from Santa Rosa Sonoma County (STS) if they book a flight from Santa Rosa to Reykjavik Keflavik Intl. On average, Sonoma County has 0 outbound flights to Reykjavik Keflavik Intl per day from 0 airlines. Santa Rosa Sonoma County is conveniently located just 7.2 mi from Santa Rosa’s city center.

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

    A quick flight from Santa Rosa to Reykjavik Keflavik Intl Airport can take about 37h 45m. American Airlines provides one of the quickest options available for as low as $992. There are 4149 mi between Santa Rosa and Reykjavik Keflavik Intl Airport.

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

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

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

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

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

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

    Currently, July is the cheapest month in which you can book a flight from Santa Rosa to Reykjavik Keflavik Intl Airport (average of $537). Flying from Santa Rosa to Reykjavik Keflavik Intl Airport in January is currently the most expensive (average of $853). 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

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