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Keflavik Intl

$489+ Cheap flights from Sioux Falls (FSD) 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 2/22. Fares are subject to change and may not be available on all flights or dates of travel.
FSD — KEF
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
1 adult, Economy
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Cheap flight deals from Sioux Falls to Keflavik Intl

Discover tips and strategies to find the most affordable flight options for your journey from Sioux Falls (FSD) 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 September 11, 2025.

Round-trip from

$976
(Lufthansa)

One-way from

$489
(Kiwi.com)
From Sioux Falls Joe Foss Field to Reykjavik Keflavik Intl
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One-way flight from Sioux Falls Joe Foss Field to Reykjavik Keflavik Intl
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Find flight deals from Sioux Falls to Keflavik Intl

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

This Lufthansa deal was found by Cheapflights users on 9/9. 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 Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/311:19 amFSD - KEF
2 stops20h 46mLufthansa
Mon 10/612:25 amKEF - FSD
2 stops26h 57mLufthansa
Deal found 9/9$976
This United 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/146:11 pmFSD - KEF
1 stop9h 19mUnited Airlines
Sun 9/219:30 amKEF - FSD
2 stops41h 42mUnited Airlines
Deal found 9/11$1,013
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/311:52 amFSD - KEF
2 stops15h 23mUnited Airlines
Tue 10/79:50 amKEF - FSD
2 stops39h 31mUnited Airlines
Deal found 9/10$1,090
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/166:00 amFSD - KEF
2 stops21h 10mUnited Airlines
Sat 9/279:50 amKEF - FSD
2 stops39h 31mUnited Airlines
Deal found 9/10$1,220
This Cheapflightsfares 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/1411:20 amFSD - KEF
2 stops31h 15mLufthansa
Sat 9/2012:25 amKEF - FSD
2 stops26h 47mLufthansa
Deal found 9/10$1,234
This Gurufare 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/176:11 pmFSD - KEF
1 stop9h 19mLufthansa
Fri 9/2612:25 amKEF - FSD
2 stops24h 56mLufthansa
Deal found 9/10$1,279

Cheapflights Fare Finder

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

Fly from

Sioux Falls

Fly to

Keflavik Intl

Route

Depart

Return

Price

Sioux FallsReykjavik

FSD - KEF

FSDKEF

Sioux Falls Joe Foss Field

Fri 10/3

11:19 am-1:05 pm

2 stops20h 46m

Reykjavik Keflavik Intl

Mon 10/6

12:25 am-10:22 pm

2 stops26h 57m

$976

Sioux FallsReykjavik

FSD - KEF

FSDKEF

Sioux Falls Joe Foss Field

Tue 11/11

4:00 pm-10:45 am

2 stops36h 45m

Reykjavik Keflavik Intl

Wed 11/19

11:50 am-6:45 pm

2 stops36h 55m

$1,018

Sioux FallsReykjavik

FSD - KEF

FSDKEF

Sioux Falls Joe Foss Field

Fri 10/3

11:52 am-8:15 am

2 stops15h 23m

Reykjavik Keflavik Intl

Tue 10/7

9:50 am-8:21 pm

2 stops39h 31m

$1,090

Sioux FallsReykjavik

FSD - KEF

FSDKEF

Sioux Falls Joe Foss Field

Sun 2/22

7:44 pm-11:15 am

3 stops57h 31m

$489

Sioux FallsReykjavik

FSD - KEF

FSDKEF

Sioux Falls Joe Foss Field

Sun 2/22

6:20 pm-2:20 pm

2 stops38h 00m

$490

Sioux FallsReykjavik

FSD - KEF

FSDKEF

Sioux Falls Joe Foss Field

Wed 2/25

6:20 pm-3:45 pm

2 stops39h 25m

$507

Sioux FallsReykjavik

FSD - KEF

FSDKEF

Sioux Falls Joe Foss Field

Wed 2/25

6:20 pm-3:45 pm

3 stops39h 25m

$551

Sioux FallsReykjavik

FSD - KEF

FSDKEF

Sioux Falls Joe Foss Field

Sat 2/28

8:21 pm-10:15 am

3 stops55h 54m

$551

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/9

Best time to book a flight from Sioux Falls to Keflavik Intl

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

    Most people fly from Sioux Falls Joe Foss Field (FSD) if they book a flight from Sioux Falls to Reykjavik Keflavik Intl. On average, Joe Foss Field has 0 outbound flights to Reykjavik Keflavik Intl per day from 0 airlines. Sioux Falls Joe Foss Field is conveniently located just 2.6 mi from Sioux Falls’s city center.

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

    Departing from Sioux Falls to Reykjavik Keflavik Intl Airport will take you 15h 23m. Sioux Falls and Reykjavik Keflavik Intl Airport are separated by a distance of 3111 mi. This flight may include one or multiple stops.

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

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

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

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

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

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

    Currently, November is the cheapest month in which you can book a flight from Sioux Falls to Reykjavik Keflavik Intl Airport (average of $328). Flying from Sioux Falls to Reykjavik Keflavik Intl Airport in June is currently the most expensive (average of $655). 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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