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Cheap flights from South Dakota to London from £647

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 25/10. Fares are subject to change and may not be available on all flights or dates of travel.
FSD — LON
11 Aug — 18 Aug1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from South Dakota to London

Enter your travel dates to find the best prices.

Cheapest flights from South Dakota to London
Explore the most affordable flight options available from South Dakota to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 12 July 2026.

Sun 25/1017:04
RAP
-
LHR
1 stop13h 11m
American Airlines
Wed 4/1108:10
LHR
-
RAP
2 stops20h 07m
American Airlines
Deal found 7/7£647
Sun 15/1111:30
RAP
-
LHR
1 stop12h 35m
KLM
Wed 18/1108:40
LHR
-
RAP
2 stops20h 59m
KLM
Deal found 11/7£653
Sun 25/1014:32
RAP
-
LHR
2 stops15h 08m
Delta
Wed 4/1106:30
LHR
-
RAP
2 stops23h 00m
Delta
Deal found 7/7£656
Sun 1/1116:38
RAP
-
LHR
2 stops14h 12m
KLM
Wed 11/1106:30
LHR
-
RAP
2 stops23h 09m
KLM
Deal found 9/7£659
Wed 23/916:28
FSD
-
LHR
1 stop14h 37m
KLM
Wed 7/1006:30
LHR
-
FSD
2 stops15h 29m
KLM
Deal found 9/7£659
Wed 23/907:47
FSD
-
LHR
2 stops16h 43m
United Airlines
Wed 7/1006:55
LHR
-
FSD
2 stops17h 01m
United Airlines
Deal found 9/7£662
Sun 25/1011:41
RAP
-
LHR
1 stop13h 24m
KLM
Wed 4/1111:05
LHR
-
RAP
1 stop18h 25m
KLM
Deal found 7/7£674
Sun 1/1116:38
RAP
-
LCY
2 stops18h 47m
KLM
Wed 11/1109:20
LCY
-
RAP
2 stops20h 19m
KLM
Deal found 9/7£674
Wed 23/916:28
FSD
-
LHR
1 stop14h 37m
Delta
Wed 7/1011:15
LHR
-
FSD
1 stop14h 41m
Delta
Deal found 9/7£682
Mon 17/818:39
FSD
-
LHR
2 stops17h 46m
Lufthansa
Wed 26/806:55
LHR
-
FSD
2 stops17h 20m
Lufthansa
Deal found 9/7£691
Sun 9/817:23
FSD
-
LHR
1 stop12h 52m
Iberia
Tue 25/806:15
LHR
-
FSD
2 stops24h 15m
Iberia
Deal found 11/7£694
Fri 2/1005:30
FSD
-
LHR
1 stop18h 55m
Delta
Tue 6/1006:30
LHR
-
FSD
2 stops15h 29m
Delta
Deal found 8/7£697

Find flight deals from South Dakota to London

Keep the following information in mind while searching for South Dakota to London flight deals. Data was last updated 12 July 2026.

Round-trip from

£647

Popular in

April

Cheapest in

November

Average price

£798
American Airlines
  • American Airlines
  • 25/10-4/11
  • 3 total stops
  • 33h 18m total
  • South Dakota to London
Search Deals
Highest demand for flights based on searches. 2% potential increase in price (£13 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (£10 potential savings vs. average return price).
Search Deals
Average for round-trip flights in July 2026
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from South Dakota to London 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, Cheapflights users made 858,174 searches. Data last updated 12 July 2026.
Use the filters below to find and compare flights from South Dakota to London that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

Rapid CityLondon

RAP - LHR

RAPLHR

Rapid City

Sun 25/10

17:04-12:15

1 stop13h 11m

London Heathrow

Wed 4/11

08:10-21:17

2 stops20h 07m

£647

Rapid CityLondon

RAP - LHR

RAPLHR

Rapid City

Sun 15/11

11:30-07:05

1 stop12h 35m

London Heathrow

Wed 18/11

08:40-22:39

2 stops20h 59m

£653

Rapid CityLondon

RAP - LHR

RAPLHR

Rapid City

Sun 1/11

16:38-13:50

2 stops14h 12m

London Heathrow

Wed 11/11

06:30-22:39

2 stops23h 09m

£659

Sioux FallsLondon

FSD - LHR

FSDLHR

Sioux Falls Joe Foss Field

Wed 23/9

16:28-13:05

1 stop14h 37m

London Heathrow

Wed 7/10

06:30-15:59

2 stops15h 29m

£659

Rapid CityLondon

RAP - LCY

RAPLCY

Rapid City

Sun 25/10

16:38-16:35

2 stops17h 57m

London City

Wed 4/11

07:45-22:30

2 stops21h 45m

£674

Rapid CityLondon

RAP - LCY

RAPLCY

Rapid City

Sun 1/11

16:38-18:25

2 stops18h 47m

London City

Wed 11/11

09:20-22:39

2 stops20h 19m

£674

Rapid CityLondon

RAP - LCY

RAPLCY

Rapid City

Sun 15/11

11:30-08:50

2 stops14h 20m

London City

Wed 18/11

09:20-22:39

2 stops20h 19m

£674

Sioux FallsLondon

FSD - LHR

FSDLHR

Sioux Falls Joe Foss Field

Wed 23/9

16:28-13:05

1 stop14h 37m

London Heathrow

Wed 7/10

11:15-19:56

1 stop14h 41m

£682

Sioux FallsLondon

FSD - LHR

FSDLHR

Sioux Falls Joe Foss Field

Wed 26/8

07:47-08:30

1 stop18h 43m

London Heathrow

Wed 9/9

06:50-23:12

2 stops22h 22m

£697

Sioux FallsLondon

FSD - LHR

FSDLHR

Sioux Falls Joe Foss Field

Sun 9/8

18:28-18:40

2 stops18h 12m

London Heathrow

Tue 25/8

06:55-20:07

2 stops19h 12m

£699

Flights are sorted by cheapest return flights first.

Deals found on 8/7

Showing 1-10 of 33 resultsSorted by cheapest first
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Best time to book a flight from South Dakota to London

Have a flexible travel schedule? Discover the best time to fly to London from South Dakota with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from South Dakota to London

What is the cheapest month to book a flight from South Dakota to London?

Currently, September is the cheapest month in which you can book a flight from South Dakota to London (average of £441). Flying from South Dakota to London in June is currently the most expensive (average of £709). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Related info for your journey

Find useful and relevant information for your journey from South Dakota to London. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from South Dakota to London?

    A quick flight from South Dakota to London can take about 12h 35m. American Airlines provides one of the quickest options available for as low as £653. There are 4385 mi between South Dakota and London. Both multi-stop and direct flights can be found to your destination and back.

  • What are the most popular routes from South Dakota to London?

    While some choose either Sioux Falls Joe Foss Field - London City or Sioux Falls Joe Foss Field - London Gatwick, Sioux Falls Joe Foss Field - London Heathrow is the most popular route from South Dakota to London.

  • Can I find deals for flights from South Dakota to London that include hotel bookings?

    Yes. In addition to deals on South Dakota to London flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from South Dakota to London?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from South Dakota to London.

  • Can I find deals for business class flights from South Dakota to London?

    Yes. Cheapflights offers flight deals from South Dakota to London by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from South Dakota to London?

    Currently, September is the cheapest month in which you can book a flight from South Dakota to London (average of £441). Flying from South Dakota to London in June is currently the most expensive (average of £709). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Travelling to a place near London?

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Luton
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Gatwick
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Croydon
Ilford
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Watford
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Borehamwood
Southend-on-Sea
Uxbridge

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Users can book flights with no change fees policies with our dedicated filters. Book flights from South Dakota to London flexibly with Cheapflights today.

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