How long does it take to fly to London?

Flight times from South Dakota to London vary, but if you’re flying out of Sioux Falls and flying into London Heathrow Airport (one of the most popular routes), then the duration is 10h 45m on average. Another popular route from South Dakota to London is flying from Rapid City to London Heathrow Airport, which will take roughly 12h 58m. Keep in mind that layovers or delays could extend your travel time.

When did momondo last update prices for flights from South Dakota to London?

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

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

As of November 2025, there is 1 operator available to choose from for flights from South Dakota to London.

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

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.

What documentation or ID do you need to fly to London?

The travel and health documents required for your trip to London 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. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

£170 Cheap Flights from South Dakota to London in 2025/26

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Find the cheapest flights from South Dakota to London

Round-trip

One-way

Last minute

Cheap return flights

Enter your travel dates to find the best prices.

10:54 - 07:05RAP-LHR

13h 11m1 stop

06:20 - 22:28LHR-RAP

23h 08m2 stops

£453Delta

Find Deal

Sun, 25 Jan - Thu, 26 Feb

10:54 - 07:05RAP-LHR

13h 11m1 stop

06:30 - 15:25LHR-RAP

15h 55m2 stops

£453KLM

Find Deal

Sun, 25 Jan - Wed, 25 Feb

05:10 - 09:40RAP-LHR

21h 30m1 stop

11:35 - 18:54LHR-RAP

14h 19m1 stop

£496United Airlines

Find Deal

Thu, 22 Jan - Sat, 28 Feb

12:30 - 06:50FSD-LHR

12h 20m1 stop

13:10 - 22:12LHR-FSD

15h 02m1 stop

£516Multiple Airlines

Find Deal

Mon, 27 Apr - Wed, 6 May

16:20 - 11:15FSD-LHR

12h 55m1 stop

13:10 - 22:12LHR-FSD

15h 02m1 stop

£517Multiple Airlines

Find Deal

Mon, 27 Apr - Wed, 6 May

07:10 - 10:10RAP-LHR

44h 00m2 stops

06:50 - 10:34LHR-RAP

34h 44m2 stops

£545United Airlines

Find Deal

Sat, 22 Nov - Tue, 25 Nov

12:30 - 10:35FSD-LHR

16h 05m2 stops

12:15 - 22:12LHR-FSD

15h 57m1 stop

£572Iberia

Find Deal

Tue, 21 Apr - Fri, 8 May

12:30 - 10:35FSD-LHR

16h 05m2 stops

06:10 - 22:12LHR-FSD

22h 02m2 stops

£587Iberia

Find Deal

Tue, 21 Apr - Fri, 8 May

13:20 - 07:05FSD-LHR

12h 45m1 stop

13:15 - 22:58LHR-FSD

15h 43m2 stops

£591Virgin Atlantic

Find Deal

Fri, 27 Mar - Tue, 31 Mar

05:20 - 09:00FSD-LHR

22h 40m1 stop

13:15 - 22:58LHR-FSD

15h 43m2 stops

£592Virgin Atlantic

Find Deal

Fri, 27 Mar - Tue, 31 Mar

Delta flights from South Dakota to London

Our best Delta deals on South Dakota to London flight tickets

Delta

25 Jan

RAP10:54Rapid City

13h 11m

1 stop

LHR07:05London Heathrow

26 Feb

LHR06:20London Heathrow

23h 08m

2 stops

RAP22:28Rapid City

£453

Find similar

Delta

25 Jan

RAP10:54Rapid City

13h 11m

1 stop

LHR07:05London Heathrow

26 Feb

LHR06:20London Heathrow

23h 08m

2 stops

RAP22:28Rapid City

£453

Find similar

Delta

25 Jan

RAP06:00Rapid City

19h 45m

2 stops

LHR08:45London Heathrow

26 Feb

LHR06:20London Heathrow

23h 08m

2 stops

RAP22:28Rapid City

£456

Find similar

KLM flights from South Dakota to London

Our best KLM deals on South Dakota to London flight tickets

KLM

26 Jan

RAP10:54Rapid City

16h 51m

2 stops

LHR10:45London Heathrow

25 Feb

LHR06:30London Heathrow

15h 55m

2 stops

RAP15:25Rapid City

£478

Find similar

KLM

14 Nov

FSD05:05Sioux Falls Joe Foss Field

24h 35m

1 stop

LHR11:40London Heathrow

21 Nov

LHR08:55London Heathrow

20h 14m

1 stop

FSD23:09Sioux Falls Joe Foss Field

£485

Find similar

KLM

24 Jan

RAP10:54Rapid City

19h 21m

2 stops

LCY13:15London City

25 Feb

LCY17:05London City

29h 20m

2 stops

RAP15:25Rapid City

£609

Find similar

Fly from

Fly to

Route

Depart

Return

Price

Rapid CityLondon

RAP - LHR

RAPLHR

Rapid City

Sun 25/1

10:54-07:05

1 stop13h 11m

London Heathrow

Thu 26/2

06:20-22:28

2 stops23h 08m

£453

Rapid CityLondon

RAP - LHR

RAPLHR

Rapid City

Sun 25/1

10:54-07:05

1 stop13h 11m

London Heathrow

Wed 25/2

06:30-15:25

2 stops15h 55m

£453

Rapid CityLondon

RAP - LHR

RAPLHR

Rapid City

Thu 22/1

05:10-09:40

1 stop21h 30m

London Heathrow

Sat 28/2

11:35-18:54

1 stop14h 19m

£496

Sioux FallsLondon

FSD - LHR

FSDLHR

Sioux Falls Joe Foss Field

Mon 27/4

12:30-06:50

1 stop12h 20m

London Heathrow

Wed 6/5

13:10-22:12

1 stop15h 02m

£516

Sioux FallsLondon

FSD - LHR

FSDLHR

Sioux Falls Joe Foss Field

Mon 27/4

16:20-11:15

1 stop12h 55m

London Heathrow

Wed 6/5

13:10-22:12

1 stop15h 02m

£517

Rapid CityLondon

RAP - LHR

RAPLHR

Rapid City

Sat 22/11

07:10-10:10

2 stops44h 00m

London Heathrow

Tue 25/11

06:50-10:34

2 stops34h 44m

£545

Sioux FallsLondon

FSD - LHR

FSDLHR

Sioux Falls Joe Foss Field

Tue 21/4

12:30-10:35

2 stops16h 05m

London Heathrow

Fri 8/5

12:15-22:12

1 stop15h 57m

£572

Sioux FallsLondon

FSD - LHR

FSDLHR

Sioux Falls Joe Foss Field

Tue 21/4

12:30-10:35

2 stops16h 05m

London Heathrow

Fri 8/5

06:10-22:12

2 stops22h 02m

£587

Sioux FallsLondon

FSD - LHR

FSDLHR

Sioux Falls Joe Foss Field

Fri 27/3

13:20-07:05

1 stop12h 45m

London Heathrow

Tue 31/3

13:15-22:58

2 stops15h 43m

£591

Sioux FallsLondon

FSD - LHR

FSDLHR

Sioux Falls Joe Foss Field

Fri 27/3

05:20-09:00

1 stop22h 40m

London Heathrow

Tue 31/3

13:15-22:58

2 stops15h 43m

£592

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from South Dakota to London

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

Airlines

Other information

What is the cheapest airline that flies from South Dakota to London?

American Airlines, Iberia, and United Airlines are the most popular carriers operating from South Dakota to London

Cheap South Dakota to London flight deals and tips

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

Direct flights	None

There are no direct flights from South Dakota to London. There are no popular flight routes from South Dakota to London.

Search flight deals

When did momondo last update prices for flights from South Dakota to London?
Prices for flights from South Dakota to London are refreshed on a daily basis.
How many operators does momondo search for flights from South Dakota to London?
As of November 2025, there is 1 operator available to choose from for flights from South Dakota to London.
How old do you have to be to fly from South Dakota to London?
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.
What documentation or ID do you need to fly to London?
The travel and health documents required for your trip to London 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. 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

Compare and see reviews for airlines that fly from South Dakota to London with momondo

Airline	Rating	Free Cancellation	Price
United Airlines	PriceFrom £575	Free Cancellation	Rating 7.4 9,012 reviews		Search United Airlines flights

Eastbourne

Milton Keynes

Luton

Gatwick

Maidstone

Slough

Canterbury

Southend-on-Sea

Ipswich

Ilford

Guildford

Dover

Colchester

Chelmsford

Hayes

Worthing

Ramsgate

Dartford

Bedford

Winchester

Why use momondo?

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

It is quick and easy to find South Dakota to London flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to London that suits you.

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

Yes. momondo enables you to select and highlight flights to London from South Dakota with this policy.

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?

Of course. momondo tracks the price of South Dakota to London flights. All you need is a valid email address and we will do the rest; it is that quick and easy.