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Heathrow

$799+ Cheap flights from Rapid City (RAP) to Heathrow (LHR)

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 12/7. Fares are subject to change and may not be available on all flights or dates of travel.
RAP — LHR
May 11 — May 181
Mon 5/11
Mon 5/18
1 adult, Economy
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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 April 11, 2026.

This United Airlines deal was found by Cheapflights users on 4/6. 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 12/75:30 am
RAP
-
LHR
2 stops23h 20m
United Airlines
Wed 12/96:35 am
LHR
-
RAP
2 stops19h 33m
United Airlines
Deal found 4/6$799
This United Airlines deal was found by Cheapflights users on 4/6. 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 8/128:55 am
RAP
-
LHR
1 stop20h 40m
United Airlines
Wed 8/266:50 am
LHR
-
RAP
2 stops18h 34m
United Airlines
Deal found 4/6$874
This United Airlines deal was found by Cheapflights users on 4/10. 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.
Sun 8/237:00 am
RAP
-
LHR
1 stop19h 40m
United Airlines
Wed 9/26:50 am
LHR
-
RAP
2 stops34h 22m
United Airlines
Deal found 4/10$882
This United Airlines deal was found by Cheapflights users on 4/10. 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 9/16:00 am
RAP
-
LHR
2 stops17h 30m
United Airlines
Fri 9/116:50 am
LHR
-
RAP
2 stops34h 22m
United Airlines
Deal found 4/10$885
This United Airlines deal was found by Cheapflights users on 4/6. 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 9/15:00 am
RAP
-
LHR
1 stop21h 40m
United Airlines
Tue 9/85:40 pm
LHR
-
RAP
2 stops30h 28m
United Airlines
Deal found 4/6$887
This British Airways deal was found by Cheapflights users on 4/7. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/126:30 am
RAP
-
LHR
1 stop21h 25m
Multiple Airlines
Wed 8/2612:55 pm
LHR
-
RAP
1 stop16h 03m
Multiple Airlines
Deal found 4/7$902

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 April 11, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$874
(United Airlines)
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

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 April 11, 2026.
Use the filters below to find and compare flights from Rapid City to London Heathrow Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Rapid CityLondon

RAP - LHR

RAPLHR

Rapid City

Wed 8/12

7:00 am-6:30 am

2 stops16h 30m

London Heathrow

Wed 8/26

6:50 am-6:24 pm

2 stops18h 34m

$880

Rapid CityLondon

RAP - LHR

RAPLHR

Rapid City

Tue 9/1

11:08 am-9:40 am

1 stop15h 32m

London Heathrow

Fri 9/11

6:50 am-10:12 am

2 stops34h 22m

$882

Rapid CityLondon

RAP - LHR

RAPLHR

Rapid City

Sun 8/23

1:00 pm-11:15 am

1 stop15h 15m

London Heathrow

Wed 9/2

11:10 am-5:40 pm

1 stop13h 30m

$902
Quickest round-trip

Rapid CityLondon

RAP - LHR

RAPLHR

Rapid City

Tue 9/1

11:08 am-9:40 am

1 stop15h 32m

London Heathrow

Tue 9/8

2:50 pm-8:32 pm

1 stop12h 42m

$902

Rapid CityLondon

RAP - LHR

RAPLHR

Rapid City

Sun 8/23

6:00 am-6:55 am

2 stops17h 55m

London Heathrow

Wed 9/2

6:50 am-6:24 pm

2 stops18h 34m

$928

Rapid CityLondon

RAP - LHR

RAPLHR

Rapid City

Thu 7/23

4:36 pm-12:25 pm

1 stop12h 49m

London Heathrow

Tue 7/28

12:15 pm-9:37 pm

2 stops16h 22m

$1,176

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/10

Sorted by cheapest first

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 April.
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 April 11, 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
9,569 reviews

Overall

7.4

Boarding

7.7

Entertainment

7.1

Crew

8.1

Food

6.6

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
9,569 reviews
United Airlines
7.4
Good
9,569 reviews

Overall

7.4

Boarding

7.7

Entertainment

7.1

Crew

8.1

Food

6.6

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 20h 40m. Fly via United Airlines to get the fastest option. The distance from Rapid City to London Heathrow Airport is about 4385 mi.

  • 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
Watford
Northampton
Borehamwood
Broadway
Chipping Norton
Hayes
Kingston upon Thames
Eastbourne
Sutton

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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

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 April 11, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$695Average$849FlexibilityNo cancel feeOn-time69%

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