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Cheap flights from South Dakota to London from £250

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from South Dakota to London departing on 16/11. 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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Find the cheapest flights from South Dakota to London

Cheap return flights

Delta Logo
16:34 - 20:00RAP-LHR
20h 26m2 stops
Delta Logo
06:20 - 22:39LHR-RAP
23h 19m2 stops
£462Delta
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Tue, 14 Oct - Tue, 18 Nov
Delta Logo
10:33 - 13:10RAP-LHR
19h 37m1 stop
Delta Logo
11:05 - 22:39LHR-RAP
18h 34m1 stop
£465Delta
Find Deal
Sun, 12 Oct - Thu, 20 Nov
American Airlines Logo
17:33 - 14:25FSD-LHR
14h 52m1 stop
American Airlines Logo
08:20 - 16:35LHR-FSD
14h 15m1 stop
£465American Airlines
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Wed, 1 Oct - Wed, 8 Oct
Delta Logo
10:33 - 13:10RAP-LHR
19h 37m1 stop
Delta Logo
11:45 - 22:36LHR-RAP
17h 51m2 stops
£468Delta
Find Deal
Sun, 12 Oct - Thu, 23 Oct
Multiple Airlines Logo
16:34 - 13:50RAP-LHR
14h 16m2 stops
Multiple Airlines Logo
06:20 - 15:45LHR-RAP
16h 25m2 stops
£483Multiple Airlines
Find Deal
Tue, 14 Oct - Thu, 20 Nov
KLM Logo
16:34 - 13:50RAP-LHR
14h 16m2 stops
KLM Logo
20:25 - 15:45LHR-RAP
26h 20m2 stops
£483KLM
Find Deal
Tue, 14 Oct - Wed, 19 Nov
Air France Logo
10:33 - 13:10RAP-LHR
19h 37m1 stop
Air France Logo
06:20 - 15:45LHR-RAP
16h 25m2 stops
£496Air France
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Thu, 16 Oct - Tue, 18 Nov
Multiple Airlines Logo
10:33 - 13:10RAP-LHR
19h 37m1 stop
Multiple Airlines Logo
06:30 - 15:45LHR-RAP
16h 15m2 stops
£497Multiple Airlines
Find Deal
Thu, 16 Oct - Wed, 19 Nov
KLM Logo
10:55 - 07:05FSD-LHR
14h 10m1 stop
KLM Logo
08:55 - 23:13LHR-FSD
20h 18m1 stop
£508KLM
Find Deal
Wed, 10 Dec - Thu, 18 Dec
American Airlines Logo
10:46 - 10:25FSD-LHR
17h 39m1 stop
American Airlines Logo
08:20 - 16:46LHR-FSD
14h 26m1 stop
£1,006American Airlines
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Sun, 21 Dec - Thu, 1 Jan

Delta flights from South Dakota to London Heathrow Airport

Our best Delta deals on South Dakota to London Heathrow Airport flight tickets
Delta
14 Oct
RAP16:34Rapid City
20h 26m
2 stops
LHR20:00London Heathrow
18 Nov
LHR06:20London Heathrow
23h 19m
2 stops
RAP22:39Rapid City
£462
Find similar
Delta
12 Oct
RAP10:33Rapid City
19h 37m
1 stop
LHR13:10London Heathrow
20 Nov
LHR11:05London Heathrow
18h 34m
1 stop
RAP22:39Rapid City
£465
Find similar
Delta
12 Oct
RAP10:33Rapid City
19h 37m
1 stop
LHR13:10London Heathrow
23 Oct
LHR11:45London Heathrow
17h 51m
2 stops
RAP22:36Rapid City
£468
Find similar

KLM flights from South Dakota to London Heathrow Airport

Our best KLM deals on South Dakota to London Heathrow Airport flight tickets
KLM
14 Oct
RAP16:34Rapid City
14h 16m
2 stops
LHR13:50London Heathrow
19 Nov
LHR20:25London Heathrow
26h 20m
2 stops
RAP15:45Rapid City
£483
Find similar
KLM
10 Dec
FSD10:55Sioux Falls Joe Foss Field
14h 10m
1 stop
LHR07:05London Heathrow
18 Dec
LHR08:55London Heathrow
20h 18m
1 stop
FSD23:13Sioux Falls Joe Foss Field
£508
Find similar
KLM
18 Oct
FSD05:30Sioux Falls Joe Foss Field
19h 15m
1 stop
LHR06:45London Heathrow
25 Oct
LHR17:25London Heathrow
35h 31m
1 stop
FSD22:56Sioux Falls Joe Foss Field
£544
Find similar

momondo Fare Finder

 
Customise your flight search to find flights from South Dakota 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 279,928 searches. Data last updated 19 September 2025.
Use the filters below to find and compare flights from South Dakota 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 14/10

16:34-20:00

2 stops20h 26m

London Heathrow

Tue 18/11

06:20-22:39

2 stops23h 19m

£462

Rapid CityLondon

RAP - LHR

RAPLHR

Rapid City

Sun 12/10

10:33-13:10

1 stop19h 37m

London Heathrow

Thu 20/11

11:05-22:39

1 stop18h 34m

£465

Sioux FallsLondon

FSD - LHR

FSDLHR

Sioux Falls Joe Foss Field

Wed 1/10

17:33-14:25

1 stop14h 52m

London Heathrow

Wed 8/10

08:20-16:35

1 stop14h 15m

£465

Rapid CityLondon

RAP - LHR

RAPLHR

Rapid City

Sun 12/10

10:33-13:10

1 stop19h 37m

London Heathrow

Thu 23/10

11:45-22:36

2 stops17h 51m

£468

Rapid CityLondon

RAP - LHR

RAPLHR

Rapid City

Tue 14/10

16:34-13:50

2 stops14h 16m

London Heathrow

Thu 20/11

06:20-15:45

2 stops16h 25m

£483

Rapid CityLondon

RAP - LHR

RAPLHR

Rapid City

Tue 14/10

16:34-13:50

2 stops14h 16m

London Heathrow

Wed 19/11

20:25-15:45

2 stops26h 20m

£483

Rapid CityLondon

RAP - LHR

RAPLHR

Rapid City

Thu 16/10

10:33-13:10

1 stop19h 37m

London Heathrow

Tue 18/11

06:20-15:45

2 stops16h 25m

£496

Rapid CityLondon

RAP - LHR

RAPLHR

Rapid City

Thu 16/10

10:33-13:10

1 stop19h 37m

London Heathrow

Wed 19/11

06:30-15:45

2 stops16h 15m

£497

Sioux FallsLondon

FSD - LHR

FSDLHR

Sioux Falls Joe Foss Field

Wed 10/12

10:55-07:05

1 stop14h 10m

London Heathrow

Thu 18/12

08:55-23:13

1 stop20h 18m

£508

Sioux FallsLondon

FSD - LHR

FSDLHR

Sioux Falls Joe Foss Field

Sun 21/12

10:46-10:25

1 stop17h 39m

London Heathrow

Thu 1/1

08:20-16:46

1 stop14h 26m

£1,006

Flights are sorted by cheapest return flights first.

Showing 1-10 of 13 resultsSorted by cheapest first
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How to get the cheapest flight ticket from South Dakota 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 month to fly to London Heathrow Airport?

In general, August is the cheapest month to fly from South Dakota to London Heathrow Airport. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around £501. The month of September is another great option to travel to London Heathrow Airport, with average flight prices from South Dakota averaging around £569.

Cheap South Dakota to London Heathrow Airport flight deals and tips

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

Direct flights

None
There are no direct flights from South Dakota to London Heathrow Airport. There are no popular flight routes from South Dakota to London Heathrow Airport.
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  • When did momondo last update prices for flights from South Dakota to London Heathrow Airport?

    Prices for flights from South Dakota to London Heathrow Airport are refreshed on a daily basis.

  • How many operators does momondo search for flights from South Dakota to London Heathrow Airport?

  • How old do you have to be to fly from South Dakota to London Heathrow Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from South Dakota to London Heathrow Airport.

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

    The travel and health documents required for your trip to London Heathrow Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at London Heathrow Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Best airlines flying from South Dakota to London Heathrow Airport

Compare and see reviews for airlines that fly from South Dakota to London Heathrow Airport with momondo
Airline
Rating
Free Cancellation
Price
United AirlinesPriceFrom £557Free CancellationRating
7.4
8,926 reviews
Search United Airlines flights

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Why use momondo?

Why should I use momondo to find a flight deal from South Dakota to London?

Finding the right flight to London from South Dakota is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to London quick and easy, saving you time and money.

Can I find flights from South Dakota to London with flexible booking policies on momondo?

Yes. All flights to London from South Dakota on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from South Dakota to London?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to London from South Dakota.

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

If you are simply researching potential flights to London, momondo offers a useful price alert feature which will track prices for flights to London from South Dakota and alert you when they change.

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