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Keflavik Intl

$939+ Cheap flights from South Dakota 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 9/14. Fares are subject to change and may not be available on all flights or dates of travel.
RAP — KEF
Jun 17 — Jun 241
Wed 6/17
Wed 6/24
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 May 18, 2026.

This United Airlines deal was found by Cheapflights users on 5/18. 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 9/141:31 pm
RAP
-
KEF
1 stop13h 19m
United Airlines
Thu 9/2410:00 am
KEF
-
RAP
2 stops37h 06m
United Airlines
Deal found 5/18$939
This United Airlines deal was found by Cheapflights users on 5/17. 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 10/211:20 am
FSD
-
KEF
1 stop16h 30m
United Airlines
Tue 10/610:00 am
KEF
-
FSD
2 stops29h 32m
United Airlines
Deal found 5/17$1,026
This United Airlines deal was found by Cheapflights users on 5/17. 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 7/31:35 pm
RAP
-
KEF
1 stop13h 15m
United Airlines
Fri 7/109:15 am
KEF
-
RAP
2 stops36h 44m
United Airlines
Deal found 5/17$1,044
This BusinessClass deal was found by Cheapflights users on 5/18. 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 BusinessClass is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/141:31 pm
RAP
-
KEF
1 stop13h 19m
Brussels Airlines
Thu 9/2412:00 pm
KEF
-
RAP
1 stop28h 15m
Brussels Airlines
Deal found 5/18$1,299
This KLM deal was found by Cheapflights users on 5/15. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/142:25 pm
RAP
-
KEF
1 stop10h 35m
KLM
Thu 9/249:30 am
KEF
-
RAP
1 stop18h 28m
KLM
Deal found 5/15$1,354
This United Airlines deal was found by Cheapflights users on 5/13. 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 9/271:00 pm
RAP
-
KEF
1 stop13h 50m
United Airlines
Thu 10/110:00 am
KEF
-
RAP
2 stops39h 20m
United Airlines
Deal found 5/13$1,557
This United Airlines deal was found by Cheapflights users on 5/18. 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 6/811:16 am
FSD
-
KEF
1 stop16h 34m
United Airlines
Mon 6/1512:00 pm
KEF
-
FSD
1 stop14h 43m
United Airlines
Deal found 5/18$1,617
This KAYAK deal was found by Cheapflights users on 5/18. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/86:30 pm
FSD
-
KEF
2 stops24h 40m
Lufthansa
Mon 6/1512:00 pm
KEF
-
FSD
1 stop14h 43m
Lufthansa
Deal found 5/18$1,622
This KAYAK deal was found by Cheapflights users on 5/18. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/86:30 pm
FSD
-
KEF
2 stops24h 40m
Multiple Airlines
Mon 6/1512:00 pm
KEF
-
FSD
2 stops16h 53m
Multiple Airlines
Deal found 5/18$1,627
This United Airlines deal was found by Cheapflights users on 5/15. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/186:30 pm
FSD
-
KEF
1 stop9h 20m
United Airlines
Tue 6/239:15 am
KEF
-
FSD
2 stops38h 01m
United Airlines
Deal found 5/15$1,645
This United Airlines deal was found by Cheapflights users on 5/17. 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 8/231:31 pm
RAP
-
KEF
1 stop13h 19m
United Airlines
Thu 8/279:15 am
KEF
-
RAP
2 stops31h 11m
United Airlines
Deal found 5/17$1,672
This United Airlines deal was found by Cheapflights users on 5/13. 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 8/246:38 pm
FSD
-
KEF
1 stop9h 12m
United Airlines
Fri 8/289:15 am
KEF
-
FSD
2 stops30h 14m
United Airlines
Deal found 5/13$1,673

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 May 18, 2026.

Round-trip from

$939
(United Airlines)
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 May 18, 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

Rapid CityReykjavik

RAP - KEF

RAPKEF

Rapid City

Mon 9/14

1:31 pm-8:50 am

1 stop13h 19m

Reykjavik Keflavik Intl

Thu 9/24

10:00 am-10:15 am

2 stops30h 15m

$939

Sioux FallsReykjavik

FSD - KEF

FSDKEF

Sioux Falls Joe Foss Field

Fri 10/2

11:20 am-8:50 am

1 stop16h 30m

Reykjavik Keflavik Intl

Tue 10/6

10:00 am-10:32 am

2 stops29h 32m

$1,026

Rapid CityReykjavik

RAP - KEF

RAPKEF

Rapid City

Fri 7/3

1:35 pm-8:50 am

1 stop13h 15m

Reykjavik Keflavik Intl

Fri 7/10

9:15 am-3:59 pm

2 stops36h 44m

$1,044

Rapid CityReykjavik

RAP - KEF

RAPKEF

Rapid City

Mon 9/14

1:31 pm-8:50 am

1 stop13h 19m

Reykjavik Keflavik Intl

Thu 9/24

12:00 pm-10:15 am

1 stop28h 15m

$1,299
Quickest round-trip

Rapid CityReykjavik

RAP - KEF

RAPKEF

Rapid City

Mon 9/14

2:25 pm-7:00 am

1 stop10h 35m

Reykjavik Keflavik Intl

Thu 9/24

9:30 am-9:58 pm

1 stop18h 28m

$1,354

Rapid CityReykjavik

RAP - KEF

RAPKEF

Rapid City

Sun 9/27

1:00 pm-8:50 am

1 stop13h 50m

Reykjavik Keflavik Intl

Thu 10/1

10:00 am-7:20 pm

2 stops39h 20m

$1,557

Sioux FallsReykjavik

FSD - KEF

FSDKEF

Sioux Falls Joe Foss Field

Mon 6/8

11:16 am-8:50 am

1 stop16h 34m

Reykjavik Keflavik Intl

Mon 6/15

12:00 pm-9:43 pm

1 stop14h 43m

$1,617

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/17

Sorted by cheapest first

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 can get you from South Dakota to Reykjavik Keflavik Intl Airport in just under 13h 19m. Your travel time can differ by up to . The distance from South Dakota to Reykjavik Keflavik Intl Airport is about 3272 mi.

  • 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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Alternative routes for South Dakota to Keflavik Intl

See prices for flight routes from nearby airports that may be better suited for you.
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