RAP - LHR

$474 Find Cheap Flights from Rapid City to London Heathrow Airport - Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Rapid City to London departing on 7/31. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to London Heathrow Airport

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Rapid City to London, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Rapid City to London, as well as popular online travel agencies
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41,299,237 searches in the past 7 days on KAYAK

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Everything you should know

Cheapest round-trip
$926
United Airlines
Thu 10/29Tue 11/3
RAP - LHR • 1 stop
Cheapest one-way
$474
Multiple Airlines
Fri 7/31
RAP - LHR • 3 stops
Top airlines
United Airlines
Cheapest • from $926 (round-trip)
United Airlines
Best reviews • 7.4 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between Rapid City and London. You'll need at least 1 connection.
Insights
Insights
Insights
Insights
Top layover airports
Denver (DEN)
Cheapest • Avg $1,092 (round-trip)
Denver (DEN)
Shortest trip • 11h 46m (one-way)
Insights
Insights
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Insights
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KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to London!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Rapid City to London (RAP-LHR)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Rapid City to London that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Rapid City to London

Thu, Oct 29 - Tue, Nov 3
United Airlines Logo
3:21 pm - 9:40 am
RAP
-
LHR
12h 19m
1 stop
United Airlines Logo
11:10 am - 10:08 pm
LHR
-
RAP
17h 58m
2 stops
$926United Airlines
Thu, Oct 29 - Tue, Nov 3
United Airlines Logo
5:30 am - 7:10 am
RAP
-
LHR
19h 40m
2 stops
United Airlines Logo
11:10 am - 10:08 pm
LHR
-
RAP
17h 58m
2 stops
$929United Airlines
Thu, Oct 29 - Tue, Nov 3
KLM Logo
4:00 pm - 1:50 pm
RAP
-
LHR
15h 50m
2 stops
KLM Logo
3:45 pm - 3:46 pm
LHR
-
RAP
31h 01m
2 stops
$935KLM
Wed, Aug 12 - Wed, Aug 26
United Airlines Logo
5:00 am - 9:40 am
RAP
-
LHR
21h 40m
1 stop
United Airlines Logo
10:50 am - 10:28 pm
LHR
-
RAP
18h 38m
2 stops
$936United Airlines
Wed, Aug 12 - Wed, Aug 26
United Airlines Logo
5:00 am - 9:40 am
RAP
-
LHR
21h 40m
1 stop
United Airlines Logo
10:50 am - 10:28 pm
LHR
-
RAP
18h 38m
2 stops
$937United Airlines
Wed, Aug 12 - Wed, Aug 26
United Airlines Logo
1:31 pm - 10:40 am
RAP
-
LHR
14h 09m
2 stops
United Airlines Logo
6:55 am - 5:53 pm
LHR
-
RAP
17h 58m
2 stops
$941United Airlines
Tue, Sep 1 - Fri, Sep 11
Multiple Airlines Logo
4:30 pm - 1:45 pm
RAP
-
LHR
14h 15m
2 stops
Multiple Airlines Logo
6:30 am - 1:49 pm
LHR
-
RAP
14h 19m
2 stops
$942Multiple Airlines
Tue, Aug 4 - Thu, Aug 20
United Airlines Logo
1:35 pm - 9:00 am
RAP
-
LHR
12h 25m
1 stop
United Airlines Logo
7:30 am - 5:53 pm
LHR
-
RAP
17h 23m
2 stops
$947United Airlines
Wed, Aug 12 - Wed, Aug 26
Delta Logo
6:48 am - 6:45 am
RAP
-
LHR
16h 57m
2 stops
Delta Logo
6:15 am - 3:49 pm
LHR
-
RAP
16h 34m
2 stops
$948Delta
Tue, Aug 4 - Thu, Aug 20
United Airlines Logo
11:20 am - 11:35 am
RAP
-
LHR
17h 15m
2 stops
United Airlines Logo
5:40 pm - 5:53 pm
LHR
-
RAP
31h 13m
2 stops
$949United Airlines
Booking Insights

KAYAK's insights & trends for Rapid City to London flights

Get data-powered insights and trends into flights from Rapid City to London to help you find the cheapest flights, the best time to fly and much more.

Which airlines provide the cheapest flights from Rapid City to London Heathrow Airport?

The cheapest round-trip price for the route for each airline clicked by KAYAK users in the last 5 days.

In the past 5 days, the cheapest round-trip tickets from Rapid City to London Heathrow Airport were found on United Airlines ($926) and KLM ($935).

Find deals

Good to know

Cheapest flight$474
Flight from Rapid City to London Heathrow Airport

When to book flights from Rapid City to London

Are your dates flexible? Find out the best times to travel from Rapid City to London based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking Rapid City to London Heathrow Airport flights

  • What is the cheapest flight from Rapid City to London Heathrow Airport?

    In the last 5 days, the lowest price for a flight from Rapid City to London Heathrow Airport was $474 for a one-way ticket and $926 for a round-trip.

  • Do I need a passport to fly between Rapid City and London Heathrow Airport?

    Yes, you'll most likely have to show a valid passport before boarding the plane in Rapid City and on arrival in London Heathrow Airport.

  • Which aircraft models fly most regularly from Rapid City to London Heathrow Airport?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Rapid City to London Heathrow Airport?

    Star Alliance is the only airline alliance operating flights between Rapid City and London Heathrow Airport.

  • How does KAYAK find such low prices on flights from Rapid City to London Heathrow Airport?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Rapid City to London Heathrow Airport.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Rapid City to London Heathrow Airport?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to London Heathrow Airport from Rapid City is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Rapid City to London Heathrow Airport?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to London Heathrow Airport with an airline and back to Rapid City with another airline. Booking your flights between Rapid City and LHR can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Rapid City to London Heathrow Airport?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to London Heathrow Airport from Rapid City up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airline flying from Rapid City to London

 
See real verified KAYAK customer reviews for airlines flying from Rapid City to London. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Rapid City to London? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.4
United AirlinesOverall score based on 9859 reviews
7.3Comfort
7.1Entertainment
6.6Food
8.1Crew
7.7Boarding
Airline reviews

Checking bag at terminal was horrible. No agents to check us in and only 1 kiosk working. Boarding went ok. Crew onboard was very scattered rained. Missed our row while serving and then didn’t see them hardly again.

4.0 OkayDavid, Jun 2026
FAR - DEN
Read more United Airlines reviews

Checking bag at terminal was horrible. No agents to check us in and only 1 kiosk working. Boarding went ok. Crew onboard was very scattered rained. Missed our row while serving and then didn’t see them hardly again.

Crew was amazing, takeoff wonderful. The bathroom was disgusting from before takeoff the odor made the flight uncomfortable as you could smell the bathroom from the center of the plane where we were sitting. Smelled like raw sewage. My daughter was throwing up as we landed due to the smell and horrible turbulence as we approached Newark.

Airline tickets are not cheap. You expect reliable competent service. Thanks to canceled flights and botched transfers we arrived at our destination two days late. This is not acceptable

Horrible! Several delays and then was cancelled! I spent over 24 hours in the airport and was unable to get a hotel or food voucher.

The entertainment they offer could use some games, and maybe they could add some cookies to the snack menu. And the automated messages are a bit repetitive. But it was comfortable temperature wise and the seats were comfortable. The crew is very polite and helpful

The entertainment is a bit limited, it would be better if they added some games to play besides the movies and tv shows. But the seats are comfortable and the crew is polite

This planes staff was top tier. Everything went great and had a great flight home.

Food was great. Staff was phenomenal. Seats were a bit hard and could use a lot more entertainment options as far as movies to choose from. WiFi was good. Overall great trip.

This was an overnight flight, and in the morning they did know coffee service. How you can throw passengers in a San Francisco airport at 5:40 a.m. in the morning and not giving them Coffee is a crime.

I was promised by United Airline (operated by ANA) that I will be seated together with my kids as I am the only adult flying with two minors. We did not get seats together in our 11 hours flight from LA to Tokyo. When asked at the gate, ANA representative said United Airline should have informed them that there is a parent flying with two minors. He said they can’t do anything in the system as the flight is full. He ask me to ask passengers next to me and the kids if they are willing to change seats. This is ridiculous! However, I went in the flight and asked other passages but no one willing to change seats. 11 hours and we were seating separately. I was very disappointed with this. It made things super inconvenient for me.

Everything you need to know for your flight from Rapid City to London

Information on your arrival and departure airports

Rapid City (RAP)
Heathrow (LHR)