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Keflavik Intl

$473+ 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 7/13. Fares are subject to change and may not be available on all flights or dates of travel.
FSD — KEF
Jul 5 — Jul 121
Sat 7/5
Sat 7/12
1 adult, Economy
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Cheap 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 June 30, 2025.

Round-trip from

$634
(United Airlines)

One-way from

$473
(Kiwi.com)
From South Dakota to Reykjavik Keflavik Intl
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One-way flight from South Dakota to Reykjavik Keflavik Intl
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Find 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 June 30, 2025.

This United Airlines deal was found by Cheapflights users on 6/27. 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 8/226:11 pmFSD - KEF
1 stop9h 19mUnited Airlines
Tue 8/269:50 amKEF - FSD
2 stops29h 55mUnited Airlines
Deal found 6/27$634
This United Airlines deal was found by Cheapflights users on 6/27. 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 9/58:32 amRAP - KEF
2 stops17h 43mUnited Airlines
Tue 9/99:50 amKEF - RAP
2 stops32h 48mUnited Airlines
Deal found 6/27$721
This Delta deal was found by Cheapflights users on 6/27. 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.
Fri 9/56:25 amRAP - KEF
1 stop18h 35mDelta
Tue 9/98:45 amKEF - RAP
2 stops19h 47mDelta
Deal found 6/27$735
This Ovago deal was found by Cheapflights users on 6/30. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/143:12 pmFSD - KEF
1 stop12h 18mLufthansa
Sat 9/2012:25 amKEF - FSD
2 stops26h 47mLufthansa
Deal found 6/30$852
This KLM deal was found by Cheapflights users on 6/29. 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 7/142:25 pmRAP - KEF
1 stop10h 35mKLM
Sun 7/209:30 amKEF - RAP
1 stop19h 01mKLM
Deal found 6/29$1,283
This Lufthansa deal was found by Cheapflights users on 6/28. 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.
Sun 9/146:11 pmFSD - KEF
1 stop9h 19mMultiple Airlines
Sat 9/2012:25 amKEF - FSD
2 stops25h 04mMultiple Airlines
Deal found 6/28$1,292
This KLM deal was found by Cheapflights users on 6/28. 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.
Fri 8/13:16 pmFSD - KEF
1 stop10h 44mKLM
Sat 8/99:30 amKEF - FSD
1 stop19h 14mKLM
Deal found 6/28$2,036
This American Airlines deal was found by Cheapflights users on 6/28. 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 7/1412:47 pmRAP - KEF
2 stops21h 43mMultiple Airlines
Sat 7/191:30 amKEF - RAP
2 stops22h 04mMultiple Airlines
Deal found 6/28$2,562

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 June 30, 2025.
Use the filters below to find and compare flights from South Dakota to Reykjavik Keflavik Intl Airport that are best for you.

Fly from

South Dakota

Fly to

Keflavik Intl

Route

Depart

Return

Price

Sioux FallsReykjavik

FSD - KEF

FSDKEF

Sioux Falls Joe Foss Field

Fri 8/22

6:11 pm-8:30 am

1 stop9h 19m

Reykjavik Keflavik Intl

Tue 8/26

9:50 am-10:45 am

2 stops29h 55m

$634

Rapid CityReykjavik

RAP - KEF

RAPKEF

Rapid City

Fri 9/5

8:32 am-8:15 am

2 stops17h 43m

Reykjavik Keflavik Intl

Tue 9/9

9:50 am-12:38 pm

2 stops32h 48m

$721

Rapid CityReykjavik

RAP - KEF

RAPKEF

Rapid City

Fri 9/5

6:25 am-7:00 am

1 stop18h 35m

Reykjavik Keflavik Intl

Tue 9/9

8:45 am-10:32 pm

2 stops19h 47m

$735

Sioux FallsReykjavik

FSD - KEF

FSDKEF

Sioux Falls Joe Foss Field

Sun 9/14

3:12 pm-8:30 am

1 stop12h 18m

Reykjavik Keflavik Intl

Sat 9/20

12:25 am-10:12 pm

2 stops26h 47m

$852

Rapid CityReykjavik

RAP - KEF

RAPKEF

Rapid City

Mon 7/14

2:25 pm-7:00 am

1 stop10h 35m

Reykjavik Keflavik Intl

Sun 7/20

9:30 am-10:31 pm

1 stop19h 01m

$1,283

Sioux FallsReykjavik

FSD - KEF

FSDKEF

Sioux Falls Joe Foss Field

Sun 9/14

6:11 pm-8:30 am

1 stop9h 19m

Reykjavik Keflavik Intl

Sat 9/20

12:25 am-8:29 pm

2 stops25h 04m

$1,292

Sioux FallsReykjavik

FSD - KEF

FSDKEF

Sioux Falls Joe Foss Field

Fri 8/1

3:16 pm-7:00 am

1 stop10h 44m

Reykjavik Keflavik Intl

Sat 8/9

9:30 am-11:44 pm

1 stop19h 14m

$2,036

Rapid CityReykjavik

RAP - KEF

RAPKEF

Rapid City

Mon 7/14

12:47 pm-4:30 pm

2 stops21h 43m

Reykjavik Keflavik Intl

Sat 7/19

1:30 am-5:34 pm

2 stops22h 04m

$2,562

Rapid CityReykjavik

RAP - KEF

RAPKEF

Rapid City

Sun 7/13

9:49 pm-8:15 am

2 stops52h 26m

$473

Rapid CityReykjavik

RAP - KEF

RAPKEF

Rapid City

Sun 7/13

6:30 am-8:30 am

1 stop20h 00m

$730

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/29

Showing 1-10 of 11 results
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.

Reviews of airlines servicing Keflavik Intl

Get insights into the airlines that provide service to Keflavik Intl. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Keflavik Intl. Reviews last updated June 30, 2025.
Get a feel of what it's like to fly with Delta, KLM, and United Airlines from South Dakota to Reykjavik Keflavik Intl Airport by reading reviews from past customers. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,969 reviews

Boarding

8.2

Entertainment

7.9

Overall

8.0

Comfort

7.9

Food

7.3

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,969 reviews
Delta
8.0
Very good
7,969 reviews

Boarding

8.2

Entertainment

7.9

Overall

8.0

Comfort

7.9

Food

7.3

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
KLM
7.8
Good
1,366 reviews
Delta
8.0
Very good
7,969 reviews

Boarding

8.2

Entertainment

7.9

Overall

8.0

Comfort

7.9

Food

7.3

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
United Airlines
7.4
Good
8,852 reviews
Delta
8.0
Very good
7,969 reviews

Boarding

8.2

Entertainment

7.9

Overall

8.0

Comfort

7.9

Food

7.3

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Lufthansa
6.8
Okay
7,201 reviews
Delta
8.0
Very good
7,969 reviews

Boarding

8.2

Entertainment

7.9

Overall

8.0

Comfort

7.9

Food

7.3

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

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.

  • 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.

  • What is the cheapest month to book a flight from South Dakota to Reykjavik Keflavik Intl Airport?

    Currently, November is the cheapest month in which you can book a flight from South Dakota to Reykjavik Keflavik Intl Airport (average of $328). Flying from South Dakota to Reykjavik Keflavik Intl Airport in June is currently the most expensive (average of $653). 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 South Dakota?

Book flights to South Dakota if you plan to visit one of these locations
Keflavik
Hveragerdi

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