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Cheap flights from South Dakota to London from £381

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 2/10. 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 South Dakota to London

Cheap return flights

Delta Logo
05:05 - 06:05RAP-LHR
18h 00m1 stop
Delta Logo
06:20 - 22:10LHR-RAP
22h 50m2 stops
£465Delta
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Sun, 2 Nov - Tue, 25 Nov
Delta Logo
12:56 - 13:10FSD-LHR
18h 14m1 stop
Delta Logo
11:30 - 23:02LHR-FSD
17h 32m2 stops
£465Delta
Find Deal
Mon, 1 Sep - Fri, 12 Sep
Delta Logo
05:05 - 07:45RAP-LHR
19h 40m2 stops
Delta Logo
06:20 - 22:10LHR-RAP
22h 50m2 stops
£468Delta
Find Deal
Sun, 2 Nov - Tue, 25 Nov
United Airlines Logo
08:45 - 10:10RAP-LHR
18h 25m2 stops
United Airlines Logo
15:00 - 14:43LHR-RAP
30h 43m2 stops
£469United Airlines
Find Deal
Mon, 3 Nov - Thu, 27 Nov
KLM Logo
14:30 - 13:10FSD-LHR
16h 40m1 stop
KLM Logo
13:05 - 23:02LHR-FSD
15h 57m1 stop
£470KLM
Find Deal
Mon, 1 Sep - Fri, 12 Sep
United Airlines Logo
06:00 - 12:20FSD-LHR
24h 20m1 stop
United Airlines Logo
08:40 - 22:22LHR-FSD
19h 42m2 stops
£473United Airlines
Find Deal
Wed, 1 Oct - Wed, 8 Oct
Virgin Atlantic Logo
05:30 - 07:15FSD-LHR
19h 45m1 stop
Virgin Atlantic Logo
12:25 - 22:44LHR-FSD
16h 19m1 stop
£508Virgin Atlantic
Find Deal
Thu, 25 Sep - Tue, 30 Sep
Virgin Atlantic Logo
18:04 - 13:10FSD-LHR
13h 06m1 stop
Virgin Atlantic Logo
11:30 - 23:46LHR-FSD
18h 16m2 stops
£540Virgin Atlantic
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Fri, 22 Aug - Sat, 30 Aug
Lufthansa Logo
11:20 - 16:40FSD-LHR
23h 20m2 stops
Lufthansa Logo
13:30 - 17:29LHR-FSD
33h 59m2 stops
£543Lufthansa
Find Deal
Mon, 1 Sep - Fri, 12 Sep
KLM Logo
10:59 - 13:10FSD-LHR
20h 11m1 stop
KLM Logo
09:20 - 23:06LHR-FSD
19h 46m1 stop
£546KLM
Find Deal
Fri, 22 Aug - Sat, 30 Aug

United Airlines flights from South Dakota to London Heathrow Airport

Our best United Airlines deals on South Dakota to London Heathrow Airport flight tickets
United Airlines
3 Nov
RAP08:45Rapid City
18h 25m
2 stops
LHR10:10London Heathrow
27 Nov
LHR15:00London Heathrow
30h 43m
2 stops
RAP14:43Rapid City
£469
Find similar
United Airlines
1 Oct
FSD06:00Sioux Falls Joe Foss Field
24h 20m
1 stop
LHR12:20London Heathrow
8 Oct
LHR08:40London Heathrow
19h 42m
2 stops
FSD22:22Sioux Falls Joe Foss Field
£473
Find similar
United Airlines
10 Sept
RAP10:15Rapid City
19h 05m
1 stop
LHR12:20London Heathrow
17 Sept
LHR15:50London Heathrow
31h 12m
2 stops
RAP16:02Rapid City
£474
Find similar

Delta flights from South Dakota to London Heathrow Airport

Our best Delta deals on South Dakota to London Heathrow Airport flight tickets
Delta
2 Nov
RAP05:05Rapid City
18h 00m
1 stop
LHR06:05London Heathrow
25 Nov
LHR06:20London Heathrow
22h 50m
2 stops
RAP22:10Rapid City
£465
Find similar
Delta
2 Nov
RAP05:05Rapid City
19h 40m
2 stops
LHR07:45London Heathrow
25 Nov
LHR06:20London Heathrow
22h 50m
2 stops
RAP22:10Rapid City
£468
Find similar
Delta
2 Nov
RAP05:05Rapid City
18h 00m
1 stop
LHR06:05London Heathrow
25 Nov
LHR11:05London Heathrow
18h 05m
1 stop
RAP22:10Rapid City
£470
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 7 August 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

Sun 2/11

05:05-06:05

1 stop18h 00m

London Heathrow

Tue 25/11

06:20-22:10

2 stops22h 50m

£465

Sioux FallsLondon

FSD - LHR

FSDLHR

Sioux Falls Joe Foss Field

Mon 1/9

12:56-13:10

1 stop18h 14m

London Heathrow

Fri 12/9

11:30-23:02

2 stops17h 32m

£465

Rapid CityLondon

RAP - LHR

RAPLHR

Rapid City

Sun 2/11

05:05-07:45

2 stops19h 40m

London Heathrow

Tue 25/11

06:20-22:10

2 stops22h 50m

£468

Rapid CityLondon

RAP - LHR

RAPLHR

Rapid City

Mon 3/11

08:45-10:10

2 stops18h 25m

London Heathrow

Thu 27/11

15:00-14:43

2 stops30h 43m

£469

Sioux FallsLondon

FSD - LHR

FSDLHR

Sioux Falls Joe Foss Field

Mon 1/9

14:30-13:10

1 stop16h 40m

London Heathrow

Fri 12/9

13:05-23:02

1 stop15h 57m

£470

Sioux FallsLondon

FSD - LHR

FSDLHR

Sioux Falls Joe Foss Field

Wed 1/10

06:00-12:20

1 stop24h 20m

London Heathrow

Wed 8/10

08:40-22:22

2 stops19h 42m

£473

Sioux FallsLondon

FSD - LHR

FSDLHR

Sioux Falls Joe Foss Field

Thu 25/9

05:30-07:15

1 stop19h 45m

London Heathrow

Tue 30/9

12:25-22:44

1 stop16h 19m

£508

Sioux FallsLondon

FSD - LHR

FSDLHR

Sioux Falls Joe Foss Field

Fri 22/8

18:04-13:10

1 stop13h 06m

London Heathrow

Sat 30/8

11:30-23:46

2 stops18h 16m

£540

Sioux FallsLondon

FSD - LHR

FSDLHR

Sioux Falls Joe Foss Field

Mon 1/9

11:20-16:40

2 stops23h 20m

London Heathrow

Fri 12/9

13:30-17:29

2 stops33h 59m

£543

Sioux FallsLondon

FSD - LHR

FSDLHR

Sioux Falls Joe Foss Field

Fri 22/8

10:59-13:10

1 stop20h 11m

London Heathrow

Sat 30/8

09:20-23:06

1 stop19h 46m

£546

Flights are sorted by cheapest return flights first.

Showing 1-10 of 11 resultsSorted by cheapest first
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See travel insights to London from

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 £511. The month of November is another great option to travel to London Heathrow Airport, with average flight prices from South Dakota averaging around £575.

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

Best price found

£381

Fastest flight time

10h 40m

Direct flights

None
The best one-way flight to London Heathrow Airport from South Dakota in the past 72 hours is £381. The best return flight deal from South Dakota to London Heathrow Airport found on momondo in the last 72 hours is £465.
The fastest flight from South Dakota to London Heathrow Airport takes 10h 40m
There are no direct flights from South Dakota to London Heathrow Airport. Popular non-direct routes for this connection are Sioux Falls Joe Foss Field Airport - London Heathrow Airport and Rapid City Airport - 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 £474Free CancellationRating
7.4
8,917 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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