HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Heathrow

$468+ Cheap flights from Rapid City (RAP) to Heathrow (LHR)

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 4/15. Fares are subject to change and may not be available on all flights or dates of travel.
RAP — LHR
Mar 25 — Apr 11
Wed 3/25
Wed 4/1
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Rapid City to Heathrow 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 Heathrow

Cheapest flights from Rapid City to Heathrow
Explore the most affordable flight options available from Rapid City to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 23, 2026.

This American Airlines deal was found by Cheapflights users on 2/21. 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.
Wed 8/124:42 pm
RAP
-
LHR
1 stop14h 43m
American Airlines
Wed 8/268:55 am
LHR
-
RAP
1 stop14h 16m
American Airlines
Deal found 2/21$686
This American Airlines deal was found by Cheapflights users on 2/19. 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.
Wed 9/234:38 pm
RAP
-
LHR
1 stop14h 47m
American Airlines
Wed 9/3011:00 am
LHR
-
RAP
1 stop16h 08m
American Airlines
Deal found 2/19$688
This United Airlines deal was found by Cheapflights users on 2/23. 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.
Wed 8/127:05 am
RAP
-
LHR
2 stops16h 25m
United Airlines
Wed 8/262:50 pm
LHR
-
RAP
1 stop14h 18m
United Airlines
Deal found 2/23$690
This United Airlines deal was found by Cheapflights users on 2/19. 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.
Wed 9/237:05 am
RAP
-
LHR
2 stops16h 50m
United Airlines
Wed 9/307:45 am
LHR
-
RAP
2 stops18h 23m
United Airlines
Deal found 2/19$692
This Finnair deal was found by Cheapflights users on 2/23. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/111:41 am
RAP
-
LHR
1 stop20h 24m
Multiple Airlines
Fri 9/114:10 pm
LHR
-
RAP
1 stop26h 43m
Multiple Airlines
Deal found 2/23$694
This United Airlines deal was found by Cheapflights users on 2/19. 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 4/69:20 am
RAP
-
LHR
1 stop14h 25m
United Airlines
Mon 4/139:00 am
LHR
-
RAP
2 stops20h 27m
United Airlines
Deal found 2/19$698
This Finnair deal was found by Cheapflights users on 2/19. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/511:41 am
RAP
-
LHR
1 stop20h 24m
Multiple Airlines
Wed 8/1212:55 pm
LHR
-
RAP
1 stop15h 04m
Multiple Airlines
Deal found 2/19$713
This United Airlines deal was found by Cheapflights users on 2/19. 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.
Wed 8/57:00 am
RAP
-
LHR
1 stop22h 20m
United Airlines
Wed 8/129:30 am
LHR
-
RAP
2 stops18h 48m
United Airlines
Deal found 2/19$716
This Delta deal was found by Cheapflights users on 2/21. 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.
Tue 4/74:01 pm
RAP
-
LHR
1 stop14h 04m
Delta
Tue 4/146:30 am
LHR
-
RAP
2 stops22h 50m
Delta
Deal found 2/21$718
This United Airlines deal was found by Cheapflights users on 2/21. 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.
Tue 4/77:00 am
RAP
-
LHR
2 stops16h 30m
United Airlines
Tue 4/1410:50 am
LHR
-
RAP
2 stops18h 37m
United Airlines
Deal found 2/21$721

Find flight deals from Rapid City to Heathrow

Discover tips and strategies to find the most affordable flight options for your journey from Rapid City (RAP) to Heathrow (LHR). 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 February 23, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$686
(American Airlines)

One-way from

$468
(United Airlines)

Popular in

June

Cheapest in

February

Average price

$655
Provider with most accurate pricing for Rapid City-London Heathrow flight deals.
Search Deals
Provider most trusted by Cheapflights users for Rapid City-London Heathrow flights.
Search Deals
From Rapid City to London Heathrow
Search Deals
One-way flight from Rapid City to London Heathrow
Search Deals
Highest demand for flights based on searches. 19% potential increase in price ($206 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($45 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Rapid City to Heathrow 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 February 23, 2026.
Use the filters below to find and compare flights from Rapid City to London Heathrow Airport that are best for you.

Fly from

Rapid City

Fly to

Heathrow

Route

Depart

Return

Price

Rapid CityLondon

RAP - LHR

RAPLHR

Rapid City

Wed 8/12

7:05 am-6:30 am

2 stops16h 25m

London Heathrow

Wed 8/26

2:50 pm-8:33 pm

1 stop12h 43m

$690

Rapid CityLondon

RAP - LHR

RAPLHR

Rapid City

Wed 8/5

6:00 am-10:40 am

2 stops21h 40m

London Heathrow

Wed 8/12

1:40 pm-9:18 am

2 stops26h 38m

$717

Rapid CityLondon

RAP - LHR

RAPLHR

Rapid City

Tue 4/7

4:01 pm-1:05 pm

1 stop14h 04m

London Heathrow

Tue 4/14

6:30 am-10:20 pm

2 stops22h 50m

$718

Rapid CityLondon

RAP - LHR

RAPLHR

Rapid City

Mon 4/6

12:00 pm-9:40 am

1 stop14h 40m

London Heathrow

Mon 4/13

11:25 am-7:02 pm

1 stop14h 37m

$727

Rapid CityLondon

RAP - LHR

RAPLHR

Rapid City

Wed 5/6

12:05 pm-6:45 am

1 stop11h 40m

London Heathrow

Sun 5/10

6:50 am-9:41 pm

2 stops21h 51m

$767

Rapid CityLondon

RAP - LHR

RAPLHR

Rapid City

Thu 4/9

11:53 am-11:15 am

1 stop16h 22m

London Heathrow

Thu 4/16

12:55 pm-9:58 pm

1 stop16h 03m

$796

Rapid CityLondon

RAP - LHR

RAPLHR

Rapid City

Thu 4/9

11:40 am-10:00 am

2 stops15h 20m

London Heathrow

Thu 4/16

9:30 am-9:36 pm

2 stops19h 06m

$800

Rapid CityLondon

RAP - LHR

RAPLHR

Rapid City

Thu 5/7

11:10 am-1:05 pm

1 stop18h 55m

London Heathrow

Mon 5/11

6:30 am-1:44 pm

2 stops14h 14m

$809

Rapid CityLondon

RAP - LHR

RAPLHR

Rapid City

Thu 5/14

8:25 am-7:40 am

2 stops16h 15m

London Heathrow

Thu 5/21

2:50 pm-10:25 pm

1 stop14h 35m

$837

Rapid CityLondon

RAP - LHR

RAPLHR

Rapid City

Wed 4/15

10:55 am-8:30 am

2 stops14h 35m

$468

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/22

Showing 1-10 of 11 results
1
2

Compare providers for flights from Rapid City to Heathrow

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Rapid City to Heathrow in February.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
OvagoPrice Accuracy2 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Rapid City-London Heathrow 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-London Heathrow Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Rapid City-London Heathrow Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Rapid City-London Heathrow 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-London Heathrow 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 Heathrow

Have a flexible travel schedule? Discover the best time to fly to Heathrow 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 Heathrow

Get insights into the airlines that provide service to Heathrow. 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 Heathrow. Reviews last updated February 23, 2026.
Read through reviews of airlines operating flights from Rapid City to London Heathrow Airport, such as United Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
9,342 reviews

Entertainment

7.1

Overall

7.4

Crew

8.1

Food

6.6

Boarding

7.7

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
United Airlines
7.4
Good
9,342 reviews
United Airlines
7.4
Good
9,342 reviews

Entertainment

7.1

Overall

7.4

Crew

8.1

Food

6.6

Boarding

7.7

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family

Related info for your journey

Find useful and relevant information for your journey from Rapid City to Heathrow. 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 London Heathrow?

    For a flight from Rapid City to London Heathrow, you will be flying from Rapid City. Rapid City (RAP) is just 9.0 mi from the center of the city. Rapid City is the only Rapid City airport and it handles 0 outbound flights to London Heathrow per day. 1 airline has flights to London Heathrow from Rapid City on a regular basis.

  • How long is the flight from Rapid City to London Heathrow Airport?

    There are many flights that can get you from Rapid City to London Heathrow Airport in 14h 43m. Fly via American Airlines or United Airlines to get the fastest option. The distance from Rapid City to London Heathrow Airport is about 4385 mi. This flight may include one or multiple stops.

  • What is the cheapest airline to fly from Rapid City to London Heathrow Airport round-trip?

    United Airlines, at $695, was found to be the cheapest airline from Rapid City to London Heathrow Airport..

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Rapid City to Heathrow 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 London Heathrow Airport?

Book flights to London Heathrow Airport if you plan to visit one of these locations
Ilford
Hounslow
Croydon
Gatwick
Southend-on-Sea
Harrow
Eastleigh
Dartford
Dover
Winchester
Orpington
Northampton
Watford
Hayes
Borehamwood
Broadway
Aylesbury
Chipping Norton
Kingston upon Thames
Eastbourne

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.

Alternative routes for Rapid City to Heathrow

See prices for flight routes from nearby airports that may be better suited for you.
Sioux Falls to Heathrow flights
Sioux Falls to London City flights
Sioux Falls to Gatwick flights

Top airline flying from Rapid City to Heathrow

Discover the top airline that operate flights from Rapid City to Heathrow. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated February 23, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$695Average$930FlexibilityNo cancel feeOn-time69%

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.
Site
©2026 Cheapflights