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Keflavik Intl

$525+ Cheap flights from South Dakota 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 10/9. Fares are subject to change and may not be available on all flights or dates of travel.
FSD — KEF
Aug 16 — Aug 231
Sun 8/16
Sun 8/23
1 adult, Economy
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Cheap flight deals from South Dakota to Keflavik Intl

Cheapest flights from South Dakota to Keflavik Intl
Explore the most affordable flight options available from South Dakota to Keflavik Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 17, 2026.

This Kiwi.com deal was found by Cheapflights users on 7/13. 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.
Fri 10/167:31 pm
FSD
-
KEF
1 stop29h 29m
Multiple Airlines
Wed 10/214:50 pm
KEF
-
FSD
2 stops23h 06m
Multiple Airlines
Deal found 7/13$687
This Kiwi.com deal was found by Cheapflights users on 7/13. 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.
Sun 9/610:02 pm
FSD
-
KEF
2 stops26h 58m
Multiple Airlines
Fri 9/1110:45 am
KEF
-
FSD
1 stop12h 51m
Multiple Airlines
Deal found 7/13$768
This United Airlines deal was found by Cheapflights users on 7/13. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/146:33 pm
FSD
-
KEF
1 stop9h 17m
United Airlines
Fri 10/239:15 am
KEF
-
FSD
2 stops42h 56m
United Airlines
Deal found 7/13$771
This United Airlines deal was found by Cheapflights users on 7/13. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/117:50 am
FSD
-
KEF
1 stop20h 00m
United Airlines
Tue 10/2010:00 am
KEF
-
FSD
2 stops39h 20m
United Airlines
Deal found 7/13$776
This United Airlines deal was found by Cheapflights users on 7/13. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/136:00 am
FSD
-
KEF
2 stops20h 55m
United Airlines
Tue 10/2010:00 am
KEF
-
FSD
2 stops42h 11m
United Airlines
Deal found 7/13$779
This United Airlines deal was found by Cheapflights users on 7/13. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/101:46 pm
FSD
-
KEF
2 stops37h 59m
United Airlines
Tue 10/2010:00 am
KEF
-
FSD
2 stops37h 15m
United Airlines
Deal found 7/13$784
This United Airlines deal was found by Cheapflights users on 7/13. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/117:50 am
FSD
-
KEF
1 stop20h 00m
United Airlines
Thu 10/2212:00 pm
KEF
-
FSD
1 stop10h 56m
United Airlines
Deal found 7/13$791
This United Airlines deal was found by Cheapflights users on 7/13. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/137:50 am
FSD
-
KEF
2 stops19h 05m
United Airlines
Thu 10/2212:00 pm
KEF
-
FSD
1 stop10h 56m
United Airlines
Deal found 7/13$794
This Delta deal was found by Cheapflights users on 7/13. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/118:30 am
FSD
-
KEF
2 stops20h 00m
Delta
Wed 10/2111:25 am
KEF
-
FSD
2 stops16h 47m
Delta
Deal found 7/13$796
This United Airlines deal was found by Cheapflights users on 7/13. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/109:42 am
FSD
-
KEF
2 stops42h 03m
United Airlines
Thu 10/2212:00 pm
KEF
-
FSD
1 stop10h 56m
United Airlines
Deal found 7/13$799
This United Airlines deal was found by Cheapflights users on 7/13. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/129:42 am
FSD
-
KEF
2 stops18h 03m
United Airlines
Thu 10/2212:00 pm
KEF
-
FSD
2 stops27h 50m
United Airlines
Deal found 7/13$804
This United Airlines deal was found by Cheapflights users on 7/13. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/241:31 pm
RAP
-
KEF
1 stop13h 19m
United Airlines
Wed 9/99:15 am
KEF
-
RAP
2 stops31h 11m
United Airlines
Deal found 7/13$973

Find flight deals from South Dakota to Keflavik Intl

Keep the following information in mind while searching for South Dakota to Keflavik Intl flight deals. Data was last updated July 17, 2026.

Round-trip from

$687
(Kiwi.com)

One-way from

$525
(United Airlines)
From South Dakota to Reykjavik Keflavik Intl
Search Deals
One-way flight from South Dakota to Reykjavik Keflavik Intl
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from South Dakota 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 July 17, 2026.
Use the filters below to find and compare flights from South Dakota to Reykjavik Keflavik Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Sioux FallsReykjavik

FSD - KEF

FSDKEF

Sioux Falls Joe Foss Field

Wed 10/14

7:50 am-8:50 am

1 stop20h 00m

Reykjavik Keflavik Intl

Sat 10/24

10:00 am-9:45 pm

2 stops40h 45m

$836

Sioux FallsReykjavik

FSD - KEF

FSDKEF

Sioux Falls Joe Foss Field

Fri 10/16

6:33 pm-8:50 am

1 stop9h 17m

Reykjavik Keflavik Intl

Thu 10/22

12:00 pm-5:56 pm

1 stop10h 56m

$881
Quickest round-trip

Sioux FallsReykjavik

FSD - KEF

FSDKEF

Sioux Falls Joe Foss Field

Fri 10/16

6:33 pm-8:50 am

1 stop9h 17m

Reykjavik Keflavik Intl

Mon 10/26

12:00 pm-5:34 pm

1 stop10h 34m

$911

Sioux FallsReykjavik

FSD - KEF

FSDKEF

Sioux Falls Joe Foss Field

Wed 10/14

11:35 am-7:55 am

2 stops39h 20m

Reykjavik Keflavik Intl

Sun 10/18

9:15 am-8:20 pm

2 stops40h 05m

$930

Rapid CityReykjavik

RAP - KEF

RAPKEF

Rapid City

Sun 8/30

4:30 pm-7:00 am

1 stop8h 30m

Reykjavik Keflavik Intl

Fri 9/11

9:30 am-3:51 pm

1 stop12h 21m

$993

Sioux FallsReykjavik

FSD - KEF

FSDKEF

Sioux Falls Joe Foss Field

Mon 9/7

3:06 pm-8:30 am

2 stops12h 24m

Reykjavik Keflavik Intl

Thu 9/17

11:30 am-11:12 pm

2 stops16h 42m

$998

Rapid CityReykjavik

RAP - KEF

RAPKEF

Rapid City

Mon 8/24

12:30 pm-8:30 am

2 stops14h 00m

Reykjavik Keflavik Intl

Wed 9/9

12:00 pm-10:33 pm

2 stops16h 33m

$998

Sioux FallsReykjavik

FSD - KEF

FSDKEF

Sioux Falls Joe Foss Field

Thu 10/15

9:42 am-7:55 am

2 stops17h 13m

Reykjavik Keflavik Intl

Wed 10/21

9:15 am-10:50 am

2 stops30h 35m

$1,010

Sioux FallsReykjavik

FSD - KEF

FSDKEF

Sioux Falls Joe Foss Field

Thu 8/13

11:12 am-8:50 am

1 stop16h 38m

Reykjavik Keflavik Intl

Thu 8/20

9:15 am-11:22 pm

2 stops43h 07m

$1,043

Sioux FallsReykjavik

FSD - KEF

FSDKEF

Sioux Falls Joe Foss Field

Wed 9/2

6:39 pm-8:50 am

1 stop9h 11m

Reykjavik Keflavik Intl

Sun 9/13

9:15 am-10:44 am

2 stops54h 29m

$1,049

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/16

Showing 1-10 of 20 resultsSorted by cheapest first
1
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Best time to book a flight from South Dakota to Keflavik Intl

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

No data available for this route at this time. Please check back soon.

Related info for your journey

Find useful and relevant information for your journey from South Dakota 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 South Dakota to Reykjavik Keflavik Intl Airport?

    United Airlines and Delta can get you from South Dakota to Reykjavik Keflavik Intl Airport in just under 8h 30m. Your travel time can differ by up to 11h 30m. The distance from South Dakota to Reykjavik Keflavik Intl Airport is about 3272 mi. This flight may include one or multiple stops.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from South Dakota 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.

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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