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Cheap flights from Rapid City to London Heathrow Airport from £293

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 13/4. Fares are subject to change and may not be available on all flights or dates of travel.
RAP — LHR
10 Mar — 17 Mar1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Rapid City to Heathrow

Enter your travel dates to find the best prices.

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 8 February 2026.

Sun 8/314:45
RAP
-
LHR
2 stops39h 05m
United Airlines
Sun 15/314:30
LHR
-
RAP
2 stops36h 04m
United Airlines
Deal found 6/2£469
Tue 24/317:41
RAP
-
LHR
1 stop33h 59m
United Airlines
Tue 31/307:25
LHR
-
RAP
2 stops18h 37m
United Airlines
Deal found 7/2£491
Thu 23/416:15
RAP
-
LHR
1 stop13h 05m
United Airlines
Mon 27/416:25
LHR
-
RAP
2 stops31h 35m
United Airlines
Deal found 7/2£521
Fri 24/410:58
RAP
-
LHR
2 stops26h 12m
Delta
Mon 27/420:05
LHR
-
RAP
2 stops26h 10m
Delta
Deal found 7/2£574
Fri 6/212:35
RAP
-
LHR
1 stop14h 05m
United Airlines
Tue 10/211:35
LHR
-
RAP
1 stop15h 57m
United Airlines
Deal found 5/2£653
Thu 19/208:30
RAP
-
LHR
1 stop18h 10m
United Airlines
Mon 23/211:35
LHR
-
RAP
1 stop17h 41m
United Airlines
Deal found 7/2£689
Sun 8/311:03
RAP
-
LHR
1 stop14h 02m
Multiple Airlines
Sun 15/311:05
LHR
-
RAP
1 stop17h 20m
Multiple Airlines
Deal found 6/2£727
Tue 23/609:00
RAP
-
LHR
1 stop17h 40m
United Airlines
Wed 15/706:55
LHR
-
RAP
2 stops22h 29m
United Airlines
Deal found 6/2£820

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 8 February 2026.

Round-trip from

£469

One-way from

£293

Popular in

June

Cheapest in

February

Average price

£481
United Airlines
  • United Airlines
  • 8/3-15/3
  • 4 total stops
  • 75h 09m total
  • Rapid City to London
Search Deals
United Airlines
  • United Airlines
  • 13/4
  • 1 total stop
  • 14h 25m total
  • Rapid City to London
Search Deals
Highest demand for flights based on searches. 20% potential increase in price (£125 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease (£24 potential savings vs. average return price).
Search Deals
Average for round-trip flights in February 2026
Search Deals

Cheapflights Fare Finder

 
Customise 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 858,174 searches. Data last updated 8 February 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

Sun 8/3

10:00-09:40

1 stop17h 40m

London Heathrow

Sun 15/3

14:30-20:34

2 stops36h 04m

£469

Rapid CityLondon

RAP - LHR

RAPLHR

Rapid City

Tue 24/3

05:00-11:50

2 stops24h 50m

London Heathrow

Tue 31/3

07:25-19:02

2 stops18h 37m

£491

Rapid CityLondon

RAP - LHR

RAPLHR

Rapid City

Fri 24/4

10:55-09:40

1 stop15h 45m

London Heathrow

Mon 27/4

16:25-17:00

2 stops31h 35m

£521

Rapid CityLondon

RAP - LHR

RAPLHR

Rapid City

Thu 23/4

16:15-12:20

1 stop13h 05m

London Heathrow

Mon 27/4

16:25-17:00

2 stops31h 35m

£521

Rapid CityLondon

RAP - LHR

RAPLHR

Rapid City

Fri 24/4

15:55-13:05

1 stop14h 10m

London Heathrow

Mon 27/4

12:25-22:20

1 stop16h 55m

£571

Rapid CityLondon

RAP - LHR

RAPLHR

Rapid City

Fri 24/4

10:58-20:10

2 stops26h 12m

London Heathrow

Mon 27/4

20:05-15:15

2 stops26h 10m

£574

Rapid CityLondon

RAP - LHR

RAPLHR

Rapid City

Thu 19/2

08:30-09:40

1 stop18h 10m

London Heathrow

Mon 23/2

11:35-22:16

1 stop17h 41m

£689

Rapid CityLondon

RAP - LHR

RAPLHR

Rapid City

Sun 28/6

07:00-06:30

2 stops16h 30m

London Heathrow

Wed 15/7

06:55-20:33

2 stops20h 38m

£822

Rapid CityLondon

RAP - LHR

RAPLHR

Rapid City

Mon 29/6

09:00-10:00

2 stops18h 00m

London Heathrow

Wed 15/7

06:55-22:24

2 stops22h 29m

£822

Rapid CityLondon

RAP - LHR

RAPLHR

Rapid City

Tue 14/4

09:20-10:40

2 stops18h 20m

£293

Flights are sorted by cheapest return flights first.

Deals found on 5/2

Showing 1-10 of 16 results
1
2

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 return 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 8 February 2026.
Check out reviews from past customers who have flown with United Airlines from Rapid City to London Heathrow 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.
United Airlines
7.4
Good
9,257 reviews
Check prices

Comfort

7.3

Boarding

7.7

Crew

8.1

Overall

7.4

Entertainment

7.1

Food

6.6

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
9,257 reviews
United Airlines
7.4
Good
9,257 reviews
Check prices

Comfort

7.3

Boarding

7.7

Crew

8.1

Overall

7.4

Entertainment

7.1

Food

6.6

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?

    Departing from Rapid City to London Heathrow Airport will take you 17h 40m. The distance between Rapid City and London Heathrow Airport is about 4385 mi.

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

    According to our current data, United Airlines (£556), offers the cheapest pricing 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 holiday 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

Travelling to a place near London Heathrow Airport?

Book flights to London Heathrow Airport if you plan to visit one of these locations
Milton Keynes
Croydon
Luton
Northampton
Wembley
Gatwick
Slough
Ilford
Hounslow
Brentford
Hayes
Colchester
Watford
Guildford
Swindon
Bedford
Chelmsford
Eastbourne
Crawley
Kingston upon Thames

Browse thousands of different options on Cheapflights for your next trip

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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
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 858,174 searches. Data last updated 8 February 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest£556Average£703FlexibilityNo cancel feeOn-time69%
Search United Airlines flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Rapid City to Heathrow?

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to Heathrow from Rapid City today with Cheapflights!

Why should you use Cheapflights to find cheap flight tickets from Rapid City to Heathrow?

Cheapflights simply makes it quick and affordable to book flights from Rapid City to Heathrow by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

Can Cheapflights find flights from Rapid City to Heathrow with no change fees?

Cheapflights does show flights with no change fees to all users. To see these options for flights from Rapid City to Heathrow, users can toggle the no change fees filter when performing a flight search.

Can Cheapflights notify me if prices for flights from Rapid City to Heathrow become cheaper?

Yes! Start tracking prices for Rapid City to Heathrow flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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