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Cheap flights from Rapid City to London from $622

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 10/7. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Rapid City to London

Cheap round-trip flights

KLM Logo
2:26 pm - 1:10 pmRAP-LHR
15h 44m1 stop
KLM Logo
6:30 am - 3:50 pmLHR-RAP
16h 20m2 stops
$622KLM
Find Deal
Tue, Oct 7 - Fri, Oct 24
KLM Logo
10:33 am - 1:10 pmRAP-LHR
19h 37m1 stop
KLM Logo
6:30 am - 1:45 pmLHR-RAP
14h 15m2 stops
$623KLM
Find Deal
Tue, Oct 7 - Fri, Oct 24
Virgin Atlantic Logo
2:26 pm - 1:30 pmRAP-LHR
16h 04m2 stops
Virgin Atlantic Logo
6:30 am - 10:36 pmLHR-RAP
23h 06m2 stops
$626Virgin Atlantic
Find Deal
Tue, Oct 7 - Fri, Oct 24
Delta Logo
10:33 am - 1:30 pmRAP-LHR
19h 57m2 stops
Delta Logo
8:40 am - 10:36 pmLHR-RAP
20h 56m2 stops
$627Delta
Find Deal
Tue, Oct 7 - Fri, Oct 24
KLM Logo
10:33 am - 1:10 pmRAP-LHR
19h 37m1 stop
KLM Logo
12:25 pm - 10:36 pmLHR-RAP
17h 11m1 stop
$628KLM
Find Deal
Tue, Oct 7 - Fri, Oct 24
Delta Logo
10:33 am - 1:30 pmRAP-LHR
19h 57m2 stops
Delta Logo
12:25 pm - 10:36 pmLHR-RAP
17h 11m1 stop
$633Delta
Find Deal
Wed, Oct 8 - Fri, Oct 24
United Airlines Logo
9:00 am - 6:30 amRAP-LHR
38h 30m2 stops
United Airlines Logo
11:25 am - 5:00 pmLHR-RAP
12h 35m1 stop
$647United Airlines
Find Deal
Sat, Oct 11 - Tue, Oct 21
United Airlines Logo
5:50 pm - 9:40 amRAP-LHR
32h 50m1 stop
United Airlines Logo
11:25 am - 6:40 pmLHR-RAP
14h 15m1 stop
$649United Airlines
Find Deal
Sat, Oct 11 - Tue, Oct 21
American Airlines Logo
4:58 pm - 12:45 pmRAP-LHR
12h 47m1 stop
American Airlines Logo
8:20 am - 9:19 pmLHR-RAP
19h 59m1 stop
$748American Airlines
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Wed, Oct 8 - Fri, Oct 24
American Airlines Logo
6:12 pm - 12:15 pmRAP-LHR
11h 03m1 stop
American Airlines Logo
8:20 am - 4:08 pmLHR-RAP
14h 48m1 stop
$798American Airlines
Find Deal
Sun, Sep 14 - Sun, Sep 21

KLM flights from Rapid City to London Heathrow Airport

Our best KLM deals on Rapid City to London Heathrow Airport flight tickets
KLM
Oct 7
RAP2:26 pmRapid City
15h 44m
1 stop
LHR1:10 pmLondon Heathrow
Oct 24
LHR6:30 amLondon Heathrow
16h 20m
2 stops
RAP3:50 pmRapid City
$622
Find similar
KLM
Oct 7
RAP10:33 amRapid City
19h 37m
1 stop
LHR1:10 pmLondon Heathrow
Oct 24
LHR6:30 amLondon Heathrow
14h 15m
2 stops
RAP1:45 pmRapid City
$623
Find similar
KLM
Oct 7
RAP10:33 amRapid City
19h 37m
1 stop
LHR1:10 pmLondon Heathrow
Oct 24
LHR12:25 pmLondon Heathrow
17h 11m
1 stop
RAP10:36 pmRapid City
$628
Find similar

Delta flights from Rapid City to London Heathrow Airport

Our best Delta deals on Rapid City to London Heathrow Airport flight tickets
Delta
Oct 7
RAP10:33 amRapid City
19h 57m
2 stops
LHR1:30 pmLondon Heathrow
Oct 24
LHR8:40 amLondon Heathrow
20h 56m
2 stops
RAP10:36 pmRapid City
$627
Find similar
Delta
Oct 8
RAP10:33 amRapid City
19h 57m
2 stops
LHR1:30 pmLondon Heathrow
Oct 24
LHR12:25 pmLondon Heathrow
17h 11m
1 stop
RAP10:36 pmRapid City
$633
Find similar

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 August 2, 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

Tue 10/7

2:26 pm-1:10 pm

1 stop15h 44m

London Heathrow

Fri 10/24

6:30 am-3:50 pm

2 stops16h 20m

$622

Rapid CityLondon

RAP - LHR

RAPLHR

Rapid City

Tue 10/7

10:33 am-1:10 pm

1 stop19h 37m

London Heathrow

Fri 10/24

6:30 am-1:45 pm

2 stops14h 15m

$623

Rapid CityLondon

RAP - LHR

RAPLHR

Rapid City

Tue 10/7

2:26 pm-1:30 pm

2 stops16h 04m

London Heathrow

Fri 10/24

6:30 am-10:36 pm

2 stops23h 06m

$626

Rapid CityLondon

RAP - LHR

RAPLHR

Rapid City

Tue 10/7

10:33 am-1:30 pm

2 stops19h 57m

London Heathrow

Fri 10/24

8:40 am-10:36 pm

2 stops20h 56m

$627

Rapid CityLondon

RAP - LHR

RAPLHR

Rapid City

Tue 10/7

10:33 am-1:10 pm

1 stop19h 37m

London Heathrow

Fri 10/24

12:25 pm-10:36 pm

1 stop17h 11m

$628

Rapid CityLondon

RAP - LHR

RAPLHR

Rapid City

Wed 10/8

10:33 am-1:30 pm

2 stops19h 57m

London Heathrow

Fri 10/24

12:25 pm-10:36 pm

1 stop17h 11m

$633

Rapid CityLondon

RAP - LHR

RAPLHR

Rapid City

Sat 10/11

9:00 am-6:30 am

2 stops38h 30m

London Heathrow

Tue 10/21

11:25 am-5:00 pm

1 stop12h 35m

$647

Rapid CityLondon

RAP - LHR

RAPLHR

Rapid City

Sat 10/11

5:50 pm-9:40 am

1 stop32h 50m

London Heathrow

Tue 10/21

11:25 am-6:40 pm

1 stop14h 15m

$649

Rapid CityLondon

RAP - LHR

RAPLHR

Rapid City

Wed 10/8

4:58 pm-12:45 pm

1 stop12h 47m

London Heathrow

Fri 10/24

8:20 am-9:19 pm

1 stop19h 59m

$748

Rapid CityLondon

RAP - LHR

RAPLHR

Rapid City

Sun 9/14

6:12 pm-12:15 pm

1 stop11h 03m

London Heathrow

Sun 9/21

8:20 am-4:08 pm

1 stop14h 48m

$798

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 15% 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

Best Price Found

$622

Fastest flight time

11h 03m

Direct flights

None
The best flight deal from Rapid City to London Heathrow Airport found on momondo in the last 72 hours is $622
The fastest flight from Rapid City to London Heathrow Airport takes 11h 03m
There are no direct flights from Rapid City to London Heathrow Airport. Popular non-direct route for this connection is Rapid City Airport - 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 11h 03m.

  • 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
United AirlinesPriceFrom $691Free CancellationRating
7.4
8,905 reviews
Search United Airlines flights
American AirlinesPriceFrom $724Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights

Traveling to a place near London?

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Hounslow
Dover
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Luton
Dartford
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Stansted
Hayes
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Chelmsford
Salisbury
Ilford
Brentwood
Colchester
Stratford-upon-Avon
Folkestone
Swindon

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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