HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Keflavik Intl

$422+ Cheap flights from Rapid City (RAP) 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.
RAP — KEF
Jul 8 — Jul 151
Tue 7/8
Tue 7/15
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Rapid City to Keflavik Intl with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

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 July 3, 2025.

Round-trip from

$720
(United Airlines)

One-way from

$422
(Kiwi.com)
From Rapid City to Reykjavik Keflavik Intl
Search Deals
One-way flight from Rapid City to Reykjavik Keflavik Intl
Search Deals

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 July 3, 2025.

This United Airlines deal was found by Cheapflights users on 7/1. 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 9/510:15 amRAP - KEF
2 stops16h 15mUnited Airlines
Tue 9/99:50 amKEF - RAP
2 stops42h 09mUnited Airlines
Deal found 7/1$720
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/510:55 amRAP - KEF
1 stop14h 05mDelta
Tue 9/98:45 amKEF - RAP
2 stops19h 47mDelta
Deal found 6/30$736
This American Airlines deal was found by Cheapflights users on 7/2. 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 7/2$2,605

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 July 3, 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

Fri 9/5

5:30 am-8:30 am

2 stops21h 00m

Reykjavik Keflavik Intl

Tue 9/9

9:50 am-9:59 pm

2 stops42h 09m

$720

Rapid CityReykjavik

RAP - KEF

RAPKEF

Rapid City

Fri 9/5

10:55 am-7:00 am

1 stop14h 05m

Reykjavik Keflavik Intl

Tue 9/9

8:45 am-10:32 pm

2 stops19h 47m

$736

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

$2,605

Rapid CityReykjavik

RAP - KEF

RAPKEF

Rapid City

Sun 7/13

9:49 pm-8:15 am

3 stops52h 26m

$422

Rapid CityReykjavik

RAP - KEF

RAPKEF

Rapid City

Tue 7/15

3:25 pm-8:10 am

2 stops34h 45m

$630

Rapid CityReykjavik

RAP - KEF

RAPKEF

Rapid City

Tue 7/15

10:53 am-7:00 am

1 stop14h 07m

$736

Rapid CityReykjavik

RAP - KEF

RAPKEF

Rapid City

Sun 7/13

4:30 pm-7:00 am

1 stop8h 30m

$887

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/1

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.

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 July 3, 2025.
Peruse reviews from past customers who have flown with Delta, Air France, and United Airlines from Rapid City to Reykjavik Keflavik Intl Airport to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,982 reviews

Comfort

7.9

Food

7.3

Overall

8.0

Crew

8.5

Entertainment

7.9

Boarding

8.2

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
7,982 reviews
Delta
8.0
Very good
7,982 reviews

Comfort

7.9

Food

7.3

Overall

8.0

Crew

8.5

Entertainment

7.9

Boarding

8.2

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!
Air France
7.5
Good
1,465 reviews
Delta
8.0
Very good
7,982 reviews

Comfort

7.9

Food

7.3

Overall

8.0

Crew

8.5

Entertainment

7.9

Boarding

8.2

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
8,861 reviews
Delta
8.0
Very good
7,982 reviews

Comfort

7.9

Food

7.3

Overall

8.0

Crew

8.5

Entertainment

7.9

Boarding

8.2

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 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.

  • What are the cheapest airlines to fly from Rapid City to Reykjavik Keflavik Intl Airport one-way?

    For one-way options, check prices for United Airlines. According to our data, you can fly for as low as $630. Users have also found prices from $736 and $887 on Air France and Delta, respectively.

  • 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.

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

    Currently, November is the cheapest month in which you can book a flight from Rapid City to Reykjavik Keflavik Intl Airport (average of $328). Flying from Rapid City 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 Rapid City?

Book flights to Rapid City if you plan to visit one of these locations
Keflavik
Hveragerdi

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.