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Keflavik Intl

$685+ Cheap flights from Rapid City (RAP) 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 5/11. Fares are subject to change and may not be available on all flights or dates of travel.
RAP — KEF
Feb 26 — Mar 51
Thu 2/26
Thu 3/5
1 adult, Economy
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Cheap flight deals from Rapid City to Keflavik Intl

Cheapest flights from Rapid City to Keflavik Intl
Explore the most affordable flight options available from Rapid City to Keflavik Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 27, 2026.

This Delta deal was found by Cheapflights users on 1/27. 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.
Mon 5/1110:40 am
RAP
-
KEF
1 stop15h 00m
Delta
Mon 5/189:30 am
KEF
-
RAP
1 stop11h 40m
Delta
Deal found 1/27$685
This United Airlines deal was found by Cheapflights users on 1/26. 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 9/145:30 am
RAP
-
KEF
2 stops19h 30m
United Airlines
Thu 9/2410:00 am
KEF
-
RAP
2 stops37h 03m
United Airlines
Deal found 1/26$723
This Delta deal was found by Cheapflights users on 1/26. 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.
Mon 9/142:25 pm
RAP
-
KEF
1 stop11h 15m
Delta
Thu 9/249:30 am
KEF
-
RAP
1 stop11h 40m
Delta
Deal found 1/26$884
This United Airlines deal was found by Cheapflights users on 1/27. 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.
Mon 7/136:20 am
RAP
-
KEF
1 stop20h 10m
United Airlines
Mon 7/209:15 am
KEF
-
RAP
2 stops37h 48m
United Airlines
Deal found 1/27$889
This Delta deal was found by Cheapflights users on 1/26. 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.
Thu 5/144:00 pm
RAP
-
KEF
1 stop9h 40m
Delta
Mon 5/189:30 am
KEF
-
RAP
1 stop11h 40m
Delta
Deal found 1/26$914
This United Airlines deal was found by Cheapflights users on 1/26. 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 8/271:00 pm
RAP
-
KEF
1 stop13h 30m
United Airlines
Mon 8/319:15 am
KEF
-
RAP
2 stops37h 48m
United Airlines
Deal found 1/26$915

Find flight deals from Rapid City to Keflavik Intl

Discover tips and strategies to find the most affordable flight options for your journey from Rapid City (RAP) 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 January 27, 2026.

Round-trip from

$914
(KLM)
From Rapid City to Reykjavik Keflavik Intl
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Rapid City 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 January 27, 2026.
Use the filters below to find and compare flights from Rapid City to Reykjavik Keflavik Intl Airport that are best for you.

Fly from

Rapid City

Fly to

Keflavik Intl

Route

Depart

Return

Price

Rapid CityReykjavik

RAP - KEF

RAPKEF

Rapid City

Mon 5/11

10:40 am-7:40 am

1 stop15h 00m

Reykjavik Keflavik Intl

Mon 5/18

9:30 am-3:10 pm

1 stop11h 40m

$685

Rapid CityReykjavik

RAP - KEF

RAPKEF

Rapid City

Mon 7/13

5:30 am-7:55 am

2 stops20h 25m

Reykjavik Keflavik Intl

Mon 7/20

10:00 am-8:33 pm

3 stops40h 33m

$898

Rapid CityReykjavik

RAP - KEF

RAPKEF

Rapid City

Thu 5/14

10:40 am-7:40 am

1 stop15h 00m

Reykjavik Keflavik Intl

Mon 5/18

9:30 am-9:58 pm

1 stop18h 28m

$914

Rapid CityReykjavik

RAP - KEF

RAPKEF

Rapid City

Thu 5/14

12:10 pm-8:30 am

1 stop14h 20m

Reykjavik Keflavik Intl

Mon 5/18

12:00 pm-9:41 pm

1 stop15h 41m

$914

Rapid CityReykjavik

RAP - KEF

RAPKEF

Rapid City

Thu 5/14

4:00 pm-7:40 am

1 stop9h 40m

Reykjavik Keflavik Intl

Mon 5/18

9:30 am-9:58 pm

1 stop18h 28m

$914

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/27

Best time to book a flight from Rapid City to Keflavik Intl

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

    Most people fly from Rapid City (RAP) if they book a flight from Rapid City to Reykjavik Keflavik Intl. On average, Rapid City has 0 outbound flights to Reykjavik Keflavik Intl per day from 0 airlines. Rapid City is conveniently located just 9.0 mi from Rapid City’s city center.

  • How long is the flight from Rapid City to Reykjavik Keflavik Intl Airport?

    For as low as $685, Delta can have you in Reykjavik Keflavik Intl Airport from Rapid City in 15h. The distance between Rapid City and Reykjavik Keflavik Intl Airport is about 3272 mi. This flight may include one or multiple stops.

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

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

  • How can I find direct flights from Rapid City to Keflavik Intl?

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

  • Can I find deals for business class flights from Rapid City to Keflavik Intl?

    Yes. Cheapflights offers flight deals from Rapid City 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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