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$399+ 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 4/13. Fares are subject to change and may not be available on all flights or dates of travel.
RAP — LHR
Mar 10 — Mar 171
Tue 3/10
Tue 3/17
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 February 8, 2026.

This United Airlines deal was found by Cheapflights users on 2/6. 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.
Sun 3/82:45 pm
RAP
-
LHR
2 stops39h 05m
United Airlines
Sun 3/152:30 pm
LHR
-
RAP
2 stops36h 04m
United Airlines
Deal found 2/6$639
This United Airlines deal was found by Cheapflights users on 2/7. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/245:41 pm
RAP
-
LHR
1 stop33h 59m
United Airlines
Tue 3/317:25 am
LHR
-
RAP
2 stops18h 37m
United Airlines
Deal found 2/7$668
This United Airlines deal was found by Cheapflights users on 2/7. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/234:15 pm
RAP
-
LHR
1 stop13h 05m
United Airlines
Mon 4/274:25 pm
LHR
-
RAP
2 stops31h 35m
United Airlines
Deal found 2/7$709
This Delta deal was found by Cheapflights users on 2/7. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/2410:58 am
RAP
-
LHR
2 stops26h 12m
Delta
Mon 4/278:05 pm
LHR
-
RAP
2 stops26h 10m
Delta
Deal found 2/7$781
This United Airlines deal was found by Cheapflights users on 2/4. 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 2/65:10 am
RAP
-
LHR
1 stop21h 30m
United Airlines
Tue 2/1011:35 am
LHR
-
RAP
1 stop14h 39m
United Airlines
Deal found 2/4$889
This United Airlines deal was found by Cheapflights users on 2/7. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/198:30 am
RAP
-
LHR
1 stop18h 10m
United Airlines
Mon 2/2311:35 am
LHR
-
RAP
1 stop17h 41m
United Airlines
Deal found 2/7$938
This KLM deal was found by Cheapflights users on 2/6. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/811:03 am
RAP
-
LHR
1 stop14h 02m
Multiple Airlines
Sun 3/1511:05 am
LHR
-
RAP
1 stop17h 20m
Multiple Airlines
Deal found 2/6$990
This United Airlines deal was found by Cheapflights users on 2/6. 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 6/239:00 am
RAP
-
LHR
1 stop17h 40m
United Airlines
Wed 7/156:55 am
LHR
-
RAP
2 stops22h 29m
United Airlines
Deal found 2/6$1,117

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 8, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$639
(United Airlines)

One-way from

$399
(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. 20% potential increase in price ($232 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($44 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 8, 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 3/8

10:00 am-9:40 am

1 stop17h 40m

London Heathrow

Sun 3/15

2:30 pm-8:34 pm

2 stops36h 04m

$639

Rapid CityLondon

RAP - LHR

RAPLHR

Rapid City

Tue 3/24

5:00 am-11:50 am

2 stops24h 50m

London Heathrow

Tue 3/31

7:25 am-7:02 pm

2 stops18h 37m

$668

Rapid CityLondon

RAP - LHR

RAPLHR

Rapid City

Fri 4/24

10:55 am-9:40 am

1 stop15h 45m

London Heathrow

Mon 4/27

4:25 pm-5:00 pm

2 stops31h 35m

$709

Rapid CityLondon

RAP - LHR

RAPLHR

Rapid City

Thu 4/23

4:15 pm-12:20 pm

1 stop13h 05m

London Heathrow

Mon 4/27

4:25 pm-5:00 pm

2 stops31h 35m

$709

Rapid CityLondon

RAP - LHR

RAPLHR

Rapid City

Fri 4/24

3:55 pm-1:05 pm

1 stop14h 10m

London Heathrow

Mon 4/27

12:25 pm-10:20 pm

1 stop16h 55m

$777

Rapid CityLondon

RAP - LHR

RAPLHR

Rapid City

Fri 4/24

10:58 am-8:10 pm

2 stops26h 12m

London Heathrow

Mon 4/27

8:05 pm-3:15 pm

2 stops26h 10m

$781

Rapid CityLondon

RAP - LHR

RAPLHR

Rapid City

Thu 2/19

8:30 am-9:40 am

1 stop18h 10m

London Heathrow

Mon 2/23

11:35 am-10:16 pm

1 stop17h 41m

$938

Rapid CityLondon

RAP - LHR

RAPLHR

Rapid City

Tue 6/23

7:00 am-6:30 am

2 stops16h 30m

London Heathrow

Wed 7/15

6:55 am-8:33 pm

2 stops20h 38m

$1,120

Rapid CityLondon

RAP - LHR

RAPLHR

Rapid City

Sun 6/28

7:00 am-6:30 am

2 stops16h 30m

London Heathrow

Wed 7/15

6:55 am-8:33 pm

2 stops20h 38m

$1,120

Rapid CityLondon

RAP - LHR

RAPLHR

Rapid City

Tue 4/14

9:20 am-10:40 am

2 stops18h 20m

$399

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/5

Showing 1-10 of 16 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 8, 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
9,250 reviews

Comfort

7.3

Boarding

7.7

Food

6.6

Overall

7.4

Entertainment

7.1

Crew

8.1

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
9,250 reviews
United Airlines
7.4
Good
9,250 reviews

Comfort

7.3

Boarding

7.7

Food

6.6

Overall

7.4

Entertainment

7.1

Crew

8.1

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 24h 50m. 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
Croydon
Hounslow
Southend-on-Sea
Harrow
Eastleigh
Gatwick
Dartford
Dover
Winchester
Orpington
Northampton
Watford
Hayes
Borehamwood
Broadway
Aylesbury
Chipping Norton
Horley
Kingston upon Thames

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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.
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Rapid City to London City 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 8, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$695Average$937FlexibilityNo cancel feeOn-time69%

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