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Cheap flights from Rapid City to London from $869

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Rapid City to London departing on 3/27. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Cheap round-trip flights

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United Airlines Logo
7:05 am - 9:40 amRAP-LHR
20h 35m1 stop
United Airlines Logo
9:30 am - 10:53 amLHR-RAP
32h 23m2 stops
$869United Airlines
Find Deal
Fri, Mar 27 - Tue, Mar 31
United Airlines Logo
7:05 am - 9:40 amRAP-LHR
20h 35m1 stop
United Airlines Logo
11:25 am - 7:08 pmLHR-RAP
14h 43m1 stop
$892United Airlines
Find Deal
Fri, Mar 27 - Tue, Mar 31
United Airlines Logo
7:05 am - 9:40 amRAP-LHR
20h 35m1 stop
United Airlines Logo
9:30 am - 8:33 pmLHR-RAP
18h 03m2 stops
$893United Airlines
Find Deal
Fri, Mar 27 - Tue, Mar 31
American Airlines Logo
5:51 am - 9:40 amRAP-LHR
21h 49m2 stops
American Airlines Logo
7:40 pm - 8:15 pmLHR-RAP
31h 35m2 stops
$921American Airlines
Find Deal
Fri, Mar 27 - Tue, Mar 31
American Airlines Logo
12:35 pm - 9:40 amRAP-LHR
15h 05m2 stops
American Airlines Logo
8:25 am - 8:15 pmLHR-RAP
18h 50m2 stops
$981American Airlines
Find Deal
Fri, Mar 27 - Tue, Mar 31
United Airlines Logo
5:30 am - 10:00 amRAP-LHR
21h 30m2 stops
United Airlines Logo
2:05 pm - 10:53 amLHR-RAP
27h 48m2 stops
$1,822United Airlines
Find Deal
Tue, Apr 7 - Wed, Apr 15
Multiple Airlines Logo
12:36 pm - 10:45 amRAP-LHR
15h 09m1 stop
Multiple Airlines Logo
1:00 pm - 8:19 pmLHR-RAP
14h 19m1 stop
$1,930Multiple Airlines
Find Deal
Tue, Apr 7 - Wed, Apr 15
Virgin Atlantic Logo
10:40 am - 9:15 amRAP-LHR
15h 35m2 stops
Virgin Atlantic Logo
12:25 pm - 9:58 pmLHR-RAP
16h 33m1 stop
$1,979Virgin Atlantic
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Tue, Apr 7 - Wed, Apr 15
Multiple Airlines Logo
1:00 pm - 10:00 amRAP-LHR
14h 00m2 stops
Multiple Airlines Logo
3:50 pm - 10:53 amLHR-RAP
26h 03m2 stops
$4,056Multiple Airlines
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Tue, Apr 7 - Wed, Apr 15
United Airlines Logo
1:00 pm - 8:20 amRAP-LHR
12h 20m1 stop
United Airlines Logo
3:50 pm - 12:30 pmLHR-RAP
27h 40m2 stops
$4,057United Airlines
Find Deal
Tue, Apr 7 - Wed, Apr 15

United Airlines flights from Rapid City to London Heathrow Airport

Our best United Airlines deals on Rapid City to London Heathrow Airport flight tickets
United Airlines
Mar 27
RAP7:05 amRapid City
20h 35m
1 stop
LHR9:40 amLondon Heathrow
Mar 31
LHR9:30 amLondon Heathrow
32h 23m
2 stops
RAP10:53 amRapid City
$869
Find similar
United Airlines
Mar 27
RAP7:05 amRapid City
20h 35m
1 stop
LHR9:40 amLondon Heathrow
Mar 31
LHR11:25 amLondon Heathrow
14h 43m
1 stop
RAP7:08 pmRapid City
$892
Find similar
United Airlines
Mar 27
RAP7:05 amRapid City
20h 35m
1 stop
LHR9:40 amLondon Heathrow
Mar 31
LHR9:30 amLondon Heathrow
18h 03m
2 stops
RAP8:33 pmRapid City
$893
Find similar

American Airlines flights from Rapid City to London Heathrow Airport

Our best American Airlines deals on Rapid City to London Heathrow Airport flight tickets
American Airlines
Mar 27
RAP5:51 amRapid City
21h 49m
2 stops
LHR9:40 amLondon Heathrow
Mar 31
LHR7:40 pmLondon Heathrow
31h 35m
2 stops
RAP8:15 pmRapid City
$921
Find similar
American Airlines
Mar 27
RAP12:35 pmRapid City
15h 05m
2 stops
LHR9:40 amLondon Heathrow
Mar 31
LHR8:25 amLondon Heathrow
18h 50m
2 stops
RAP8:15 pmRapid City
$981
Find similar
American Airlines
Apr 7
RAP12:36 pmRapid City
12h 29m
1 stop
LHR8:05 amLondon Heathrow
Apr 15
LHR8:20 amLondon Heathrow
18h 59m
1 stop
RAP8:19 pmRapid City
$6,274
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momondo Fare Finder

 
Customize your flight search to find flights from Rapid City to London Heathrow Airport 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, momondo users made 832,500 searches. Data last updated November 3, 2025.
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

Rapid CityLondon

RAP - LHR

RAPLHR

Rapid City

Fri 3/27

7:05 am-9:40 am

1 stop20h 35m

London Heathrow

Tue 3/31

9:30 am-10:53 am

2 stops32h 23m

$869

Rapid CityLondon

RAP - LHR

RAPLHR

Rapid City

Fri 3/27

7:05 am-9:40 am

1 stop20h 35m

London Heathrow

Tue 3/31

11:25 am-7:08 pm

1 stop14h 43m

$892

Rapid CityLondon

RAP - LHR

RAPLHR

Rapid City

Fri 3/27

7:05 am-9:40 am

1 stop20h 35m

London Heathrow

Tue 3/31

9:30 am-8:33 pm

2 stops18h 03m

$893

Rapid CityLondon

RAP - LHR

RAPLHR

Rapid City

Fri 3/27

5:51 am-9:40 am

2 stops21h 49m

London Heathrow

Tue 3/31

7:40 pm-8:15 pm

2 stops31h 35m

$921

Rapid CityLondon

RAP - LHR

RAPLHR

Rapid City

Fri 3/27

12:35 pm-9:40 am

2 stops15h 05m

London Heathrow

Tue 3/31

8:25 am-8:15 pm

2 stops18h 50m

$981

Rapid CityLondon

RAP - LHR

RAPLHR

Rapid City

Tue 4/7

5:30 am-10:00 am

2 stops21h 30m

London Heathrow

Wed 4/15

2:05 pm-10:53 am

2 stops27h 48m

$1,822

Rapid CityLondon

RAP - LHR

RAPLHR

Rapid City

Tue 4/7

12:36 pm-10:45 am

1 stop15h 09m

London Heathrow

Wed 4/15

1:00 pm-8:19 pm

1 stop14h 19m

$1,930

Rapid CityLondon

RAP - LHR

RAPLHR

Rapid City

Tue 4/7

10:40 am-9:15 am

2 stops15h 35m

London Heathrow

Wed 4/15

12:25 pm-9:58 pm

1 stop16h 33m

$1,979

Rapid CityLondon

RAP - LHR

RAPLHR

Rapid City

Tue 4/7

1:00 pm-10:00 am

2 stops14h 00m

London Heathrow

Wed 4/15

3:50 pm-10:53 am

2 stops26h 03m

$4,056

Rapid CityLondon

RAP - LHR

RAPLHR

Rapid City

Tue 4/7

1:00 pm-8:20 am

1 stop12h 20m

London Heathrow

Wed 4/15

3:50 pm-12:30 pm

2 stops27h 40m

$4,057

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

See travel insights to London from

How to get the cheapest flight ticket from Rapid City to London Heathrow Airport

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest day to depart on your flight to London Heathrow Airport?

Our data shows that Friday is the least expensive day to fly to London Heathrow Airport. Tickets to fly out on this day can be as low as $833. The most expensive day to fly to London Heathrow Airport is Thursday, with ticket prices averaging around $1,130.

What is the cheapest time of day to depart on your flight to London Heathrow Airport?

According to our data, the cheapest time of day to fly to London Heathrow Airport is in the morning. momondo users have found flights departing from Rapid City to London Heathrow Airport in the morning for as low as $932. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights at noon are often more expensive with an average ticket price of $1,189.

Can stopping save me money on Rapid City to London Heathrow Airport flights?

You could potentially save up to 42% on your flight if you consider stops on a Rapid City to London Heathrow Airport flight.

When to book flights from Rapid City to London Heathrow Airport

Are you open to changing your travel dates? Check out the ideal times to fly from Rapid City to London Heathrow Airport according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Rapid City to London Heathrow Airport (RAP to LHR) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Rapid City to London Heathrow Airport

Direct flights

None
There are no direct flights from Rapid City to London Heathrow Airport. There are no popular flight routes from Rapid City to London Heathrow Airport.
Search flight deals

  • How far is Rapid City to London Heathrow by plane?

    A flight from Rapid City to London Heathrow will travel around 4388.5 mi. A reasonable flight in good conditions will take 12h 20m.

  • When did momondo last update prices for flights from Rapid City Airport to London Heathrow Airport?

    Prices for flights from Rapid City Airport to London Heathrow Airport are refreshed on a daily basis.

  • How many operators does momondo search for flights from Rapid City Airport to London Heathrow Airport?

  • How old do you have to be to fly from Rapid City Airport to London Heathrow Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Rapid City Airport to London Heathrow Airport.

  • What documentation or ID do you need to fly to London Heathrow Airport?

    The required travel and health documents for your London Heathrow Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at London Heathrow Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular airline from Rapid City to London Heathrow Airport?

Best airlines flying from Rapid City to London Heathrow Airport

Compare and see reviews for airlines that fly from Rapid City to London Heathrow Airport with momondo
Airline
Rating
Free Cancellation
Price
American AirlinesPriceFrom $751Free CancellationRating
7.2
11,038 reviews
Search American Airlines flights
United AirlinesPriceFrom $787Free CancellationRating
7.4
8,997 reviews
Search United Airlines flights

Traveling to a place near London?

Book flights to London if you plan to visit one of these locations
Gatwick
Hounslow
Milton Keynes
Dover
Luton
Slough
Guildford
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Dartford
Crawley
Stratford-upon-Avon
Brentwood
Salisbury
Chelmsford
Folkestone
Romford
Ilford
Swindon
Cobham
Wembley

Why use momondo?

Why should I use momondo to find a flight deal from Rapid City to London?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Rapid City to London for you.

Can I find flights from Rapid City to London with flexible booking policies on momondo?

Flights from Rapid City to London with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Rapid City to London?

momondo provides multiple filters to help you find the best flight to London from Rapid City. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from Rapid City to London right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Rapid City to London now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to London and let you know when they change.

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