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Cheap flights from South Dakota to London from £171

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 27/4. 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 return flights

Enter your travel dates to find the best prices.
Delta Logo
06:05 - 07:05RAP-LHR
18h 00m1 stop
Delta Logo
06:20 - 15:45LHR-RAP
16h 25m2 stops
£449Delta
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Mon, 17 Nov - Tue, 25 Nov
Multiple Airlines Logo
11:07 - 07:05RAP-LHR
12h 58m1 stop
Multiple Airlines Logo
06:20 - 15:45LHR-RAP
16h 25m2 stops
£450Multiple Airlines
Find Deal
Tue, 18 Nov - Tue, 25 Nov
Delta Logo
14:51 - 07:05RAP-LHR
33h 14m1 stop
Delta Logo
08:40 - 22:39LHR-RAP
20h 59m2 stops
£451Delta
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Mon, 17 Nov - Wed, 26 Nov
United Airlines Logo
15:18 - 09:40RAP-LHR
11h 22m1 stop
United Airlines Logo
11:35 - 18:43LHR-RAP
14h 08m1 stop
£532United Airlines
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Mon, 17 Nov - Mon, 24 Nov
United Airlines Logo
13:52 - 09:40FSD-LHR
13h 48m1 stop
United Airlines Logo
13:25 - 10:47LHR-FSD
27h 22m2 stops
£584United Airlines
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Thu, 1 Jan - Wed, 7 Jan
American Airlines Logo
16:20 - 06:50FSD-LHR
32h 30m1 stop
American Airlines Logo
13:25 - 22:12LHR-FSD
14h 47m2 stops
£655American Airlines
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Sat, 18 Apr - Tue, 28 Apr
Iberia Logo
16:20 - 10:30FSD-LHR
12h 10m1 stop
Iberia Logo
06:15 - 22:12LHR-FSD
21h 57m2 stops
£658Iberia
Find Deal
Fri, 10 Apr - Mon, 20 Apr
KLM Logo
13:25 - 07:05FSD-LHR
11h 40m1 stop
KLM Logo
10:45 - 23:14LHR-FSD
18h 29m1 stop
£661KLM
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Thu, 1 Jan - Wed, 7 Jan
American Airlines Logo
16:20 - 07:20FSD-LHR
33h 00m1 stop
American Airlines Logo
11:30 - 22:12LHR-FSD
16h 42m2 stops
£662American Airlines
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Sat, 25 Apr - Tue, 5 May
Iberia Logo
16:20 - 10:30FSD-LHR
12h 10m1 stop
Iberia Logo
11:30 - 22:12LHR-FSD
16h 42m2 stops
£1,451Iberia
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Tue, 5 May - Thu, 14 May

Delta flights from South Dakota to London Heathrow Airport

Our best Delta deals on South Dakota to London Heathrow Airport flight tickets
Delta
17 Nov
RAP06:05Rapid City
18h 00m
1 stop
LHR07:05London Heathrow
25 Nov
LHR06:20London Heathrow
16h 25m
2 stops
RAP15:45Rapid City
£449
Find similar
Delta
17 Nov
RAP14:51Rapid City
33h 14m
1 stop
LHR07:05London Heathrow
26 Nov
LHR08:40London Heathrow
20h 59m
2 stops
RAP22:39Rapid City
£451
Find similar
Delta
17 Nov
RAP06:05Rapid City
22h 35m
2 stops
LHR11:40London Heathrow
25 Nov
LHR06:20London Heathrow
16h 25m
2 stops
RAP15:45Rapid City
£453
Find similar

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
17 Nov
RAP15:18Rapid City
11h 22m
1 stop
LHR09:40London Heathrow
24 Nov
LHR11:35London Heathrow
14h 08m
1 stop
RAP18:43Rapid City
£532
Find similar
United Airlines
1 Jan
FSD13:52Sioux Falls Joe Foss Field
13h 48m
1 stop
LHR09:40London Heathrow
7 Jan
LHR13:25London Heathrow
27h 22m
2 stops
FSD10:47Sioux Falls Joe Foss Field
£584
Find similar
United Airlines
24 Nov
FSD08:57Sioux Falls Joe Foss Field
14h 58m
2 stops
LHR05:55London Heathrow
25 Nov
LHR18:00London Heathrow
33h 46m
2 stops
FSD21:46Sioux Falls Joe Foss Field
£640
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 November 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

Mon 17/11

06:05-07:05

1 stop18h 00m

London Heathrow

Tue 25/11

06:20-15:45

2 stops16h 25m

£449

Rapid CityLondon

RAP - LHR

RAPLHR

Rapid City

Tue 18/11

11:07-07:05

1 stop12h 58m

London Heathrow

Tue 25/11

06:20-15:45

2 stops16h 25m

£450

Rapid CityLondon

RAP - LHR

RAPLHR

Rapid City

Mon 17/11

14:51-07:05

1 stop33h 14m

London Heathrow

Wed 26/11

08:40-22:39

2 stops20h 59m

£451

Rapid CityLondon

RAP - LHR

RAPLHR

Rapid City

Mon 17/11

15:18-09:40

1 stop11h 22m

London Heathrow

Mon 24/11

11:35-18:43

1 stop14h 08m

£532

Sioux FallsLondon

FSD - LHR

FSDLHR

Sioux Falls Joe Foss Field

Thu 1/1

13:52-09:40

1 stop13h 48m

London Heathrow

Wed 7/1

13:25-10:47

2 stops27h 22m

£584

Sioux FallsLondon

FSD - LHR

FSDLHR

Sioux Falls Joe Foss Field

Sat 18/4

16:20-06:50

1 stop32h 30m

London Heathrow

Tue 28/4

13:25-22:12

2 stops14h 47m

£655

Sioux FallsLondon

FSD - LHR

FSDLHR

Sioux Falls Joe Foss Field

Fri 10/4

16:20-10:30

1 stop12h 10m

London Heathrow

Mon 20/4

06:15-22:12

2 stops21h 57m

£658

Sioux FallsLondon

FSD - LHR

FSDLHR

Sioux Falls Joe Foss Field

Thu 1/1

13:25-07:05

1 stop11h 40m

London Heathrow

Wed 7/1

10:45-23:14

1 stop18h 29m

£661

Sioux FallsLondon

FSD - LHR

FSDLHR

Sioux Falls Joe Foss Field

Sat 25/4

16:20-07:20

1 stop33h 00m

London Heathrow

Tue 5/5

11:30-22:12

2 stops16h 42m

£662

Sioux FallsLondon

FSD - LHR

FSDLHR

Sioux Falls Joe Foss Field

Tue 5/5

16:20-10:30

1 stop12h 10m

London Heathrow

Thu 14/5

11:30-22:12

2 stops16h 42m

£1,451

Flights are sorted by cheapest return flights first.

Showing 1-10 of 16 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 £520. The month of September is another great option to travel to London Heathrow Airport, with average flight prices from South Dakota averaging around £590.

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 £579Free CancellationRating
7.4
9,007 reviews
Search United Airlines flights

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Hayes

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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