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Keflavik Intl

$628+ 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 12/8. Fares are subject to change and may not be available on all flights or dates of travel.
STS — KEF
Dec 6 — Dec 131
Sat 12/6
Sat 12/13
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 November 6, 2025.

Most accurate provider

oojo
3 stars

Most trusted provider

oojo
3 stars

Round-trip from

$628
(Trip.com)

Popular in

December

Cheapest in

August

Average price

$1,167
Provider with most accurate pricing for San Francisco-Reykjavik (REK) flight deals.
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Provider most trusted by Cheapflights users for San Francisco-Reykjavik (REK) 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 November 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 November 6, 2025.

This Trip.com deal was found by Cheapflights users on 11/6. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/87:50 amSTS - KEF
1 stop14h 25mMultiple Airlines
Mon 12/154:50 pmKEF - STS
1 stop23h 58mMultiple Airlines
Deal found 11/6$628
This Alaska Airlines deal was found by Cheapflights users on 11/6. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/87:50 amSTS - KEF
2 stops14h 25mAlaska Airlines
Mon 12/155:00 pmKEF - STS
2 stops23h 48mAlaska Airlines
Deal found 11/6$1,071
This Ticket deal was found by Cheapflights users on 11/5. 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 Ticket is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/207:00 amSTS - KEF
1 stop15h 15mMultiple Airlines
Mon 11/245:00 pmKEF - STS
1 stop28h 49mMultiple Airlines
Deal found 11/5$1,395
This American Airlines deal was found by Cheapflights users on 11/5. 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 11/211:18 pmSTS - KEF
2 stops61h 37mAmerican Airlines
Sun 11/305:55 pmKEF - STS
2 stops38h 01mAmerican Airlines
Deal found 11/5$1,807

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 November 6, 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

Mon 12/8

7:50 am-6:15 am

1 stop14h 25m

Reykjavik Keflavik Intl

Mon 12/15

4:50 pm-8:48 am

1 stop23h 58m

$628

Santa RosaReykjavik

STS - KEF

STSKEF

Santa Rosa Sonoma County

Mon 12/8

7:50 am-6:15 am

2 stops14h 25m

Reykjavik Keflavik Intl

Mon 12/15

5:00 pm-8:48 am

2 stops23h 48m

$1,071

Santa RosaReykjavik

STS - KEF

STSKEF

Santa Rosa Sonoma County

Thu 11/20

7:00 am-6:15 am

1 stop15h 15m

Reykjavik Keflavik Intl

Mon 11/24

5:00 pm-9:03 am

2 stops24h 03m

$1,568

Santa RosaReykjavik

STS - KEF

STSKEF

Santa Rosa Sonoma County

Sat 11/22

4:23 pm-10:55 am

2 stops34h 32m

Reykjavik Keflavik Intl

Fri 11/28

6:10 pm-12:06 pm

2 stops49h 56m

$1,869

Santa RosaReykjavik

STS - KEF

STSKEF

Santa Rosa Sonoma County

Sat 11/22

1:18 pm-10:55 am

2 stops37h 37m

Reykjavik Keflavik Intl

Sun 11/30

5:55 pm-11:56 pm

2 stops38h 01m

$1,910

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/6

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.

  • 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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