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Keflavik Intl

$609+ 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 3/4. Fares are subject to change and may not be available on all flights or dates of travel.
RAP — KEF
Dec 4 — Dec 111
Thu 12/4
Thu 12/11
1 adult, Economy
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Cheap 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 November 4, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
1 star

Round-trip from

$609
(United Airlines)
Provider with most accurate pricing for Rapid City-Reykjavik Keflavik Intl flight deals.
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Provider most trusted by Cheapflights users for Rapid City-Reykjavik Keflavik Intl flights.
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From Rapid City to Reykjavik Keflavik Intl
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Find 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 November 4, 2025.

This American Airlines deal was found by Cheapflights users on 11/3. 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 12/81:47 pmRAP - KEF
2 stops38h 03mAmerican Airlines
Mon 12/1511:50 amKEF - RAP
2 stops32h 22mAmerican Airlines
Deal found 11/3$939
This American Airlines deal was found by Cheapflights users on 11/3. 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.
Fri 12/55:15 amRAP - KEF
2 stops46h 25mAmerican Airlines
Tue 12/911:50 amKEF - RAP
2 stops40h 26mAmerican Airlines
Deal found 11/3$2,654

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 November 4, 2025.
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

Wed 3/4

8:30 am-2:15 pm

3 stops22h 45m

Reykjavik Keflavik Intl

Wed 3/11

2:05 pm-10:11 pm

3 stops38h 06m

$609

Rapid CityReykjavik

RAP - KEF

RAPKEF

Rapid City

Tue 3/31

1:00 pm-11:30 pm

2 stops28h 30m

Reykjavik Keflavik Intl

Wed 5/13

12:00 pm-9:13 pm

1 stop15h 13m

$621

Rapid CityReykjavik

RAP - KEF

RAPKEF

Rapid City

Tue 3/31

6:20 am-9:30 am

2 stops45h 10m

Reykjavik Keflavik Intl

Tue 5/12

11:25 am-9:58 pm

2 stops16h 33m

$720

Rapid CityReykjavik

RAP - KEF

RAPKEF

Rapid City

Tue 3/3

8:30 am-1:05 pm

3 stops21h 35m

Reykjavik Keflavik Intl

Tue 3/10

3:20 pm-6:50 pm

3 stops33h 30m

$764

Rapid CityReykjavik

RAP - KEF

RAPKEF

Rapid City

Wed 4/1

10:40 am-9:30 am

2 stops40h 50m

Reykjavik Keflavik Intl

Tue 5/12

8:50 am-9:58 pm

2 stops19h 08m

$777

Rapid CityReykjavik

RAP - KEF

RAPKEF

Rapid City

Wed 4/1

10:40 am-9:30 am

2 stops40h 50m

Reykjavik Keflavik Intl

Wed 5/13

8:50 am-9:58 pm

2 stops19h 08m

$777

Rapid CityReykjavik

RAP - KEF

RAPKEF

Rapid City

Wed 4/1

10:40 am-9:30 am

2 stops40h 50m

Reykjavik Keflavik Intl

Thu 5/14

11:25 am-9:58 pm

2 stops40h 33m

$905

Rapid CityReykjavik

RAP - KEF

RAPKEF

Rapid City

Mon 3/30

6:20 am-9:30 am

2 stops21h 10m

Reykjavik Keflavik Intl

Wed 5/13

8:50 am-3:10 pm

2 stops12h 20m

$935

Rapid CityReykjavik

RAP - KEF

RAPKEF

Rapid City

Mon 3/30

6:20 am-9:30 am

2 stops21h 10m

Reykjavik Keflavik Intl

Tue 5/12

8:50 am-3:10 pm

2 stops12h 20m

$935

Rapid CityReykjavik

RAP - KEF

RAPKEF

Rapid City

Mon 12/8

1:47 pm-10:50 am

2 stops38h 03m

Reykjavik Keflavik Intl

Mon 12/15

11:50 am-1:12 pm

2 stops32h 22m

$939

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/2

  • Most accurate provider: When it comes to deals on Rapid City-Reykjavik Keflavik Intl Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Rapid City-Reykjavik Keflavik Intl Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Rapid City-Reykjavik Keflavik Intl Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Rapid City-Reykjavik Keflavik Intl Airport flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Rapid City-Reykjavik Keflavik Intl Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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 $720, Delta can have you in Reykjavik Keflavik Intl Airport from Rapid City in 45h 10m. The distance between Rapid City and Reykjavik Keflavik Intl Airport is about 3272 mi.

  • 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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