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Cheap flights from South Dakota to London from £248

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 4/8. Fares are subject to change and may not be available on all flights or dates of travel.
FSD — LON
13 May — 20 May1
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 13 April 2026.

Sun 1/1107:40
FSD
-
LHR
1 stop16h 15m
United Airlines
Thu 5/1106:50
LHR
-
FSD
2 stops16h 44m
United Airlines
Deal found 9/4£650
Wed 12/810:13
RAP
-
LHR
1 stop19h 22m
United Airlines
Wed 26/806:50
LHR
-
RAP
2 stops18h 34m
United Airlines
Deal found 13/4£651
Sat 12/918:00
FSD
-
LHR
1 stop31h 40m
Iberia
Tue 22/907:50
LHR
-
FSD
2 stops22h 01m
Iberia
Deal found 13/4£652
Tue 1/911:08
RAP
-
LHR
1 stop15h 32m
United Airlines
Fri 11/906:50
LHR
-
RAP
2 stops34h 22m
United Airlines
Deal found 13/4£656
Sun 23/812:30
RAP
-
LHR
2 stops16h 25m
United Airlines
Wed 2/906:50
LHR
-
RAP
2 stops34h 22m
United Airlines
Deal found 10/4£658
Wed 12/816:58
RAP
-
LHR
1 stop14h 27m
American Airlines
Wed 26/814:25
LHR
-
RAP
1 stop14h 33m
American Airlines
Deal found 9/4£671
Sun 1/1113:43
FSD
-
LHR
1 stop15h 52m
Multiple Airlines
Thu 5/1111:00
LHR
-
FSD
1 stop18h 59m
Multiple Airlines
Deal found 9/4£671
Sun 13/918:00
FSD
-
LHR
1 stop10h 50m
Iberia
Sat 19/906:15
LHR
-
FSD
2 stops23h 36m
Iberia
Deal found 13/4£685
Thu 3/1211:20
FSD
-
LHR
1 stop12h 35m
United Airlines
Tue 8/1211:10
LHR
-
FSD
2 stops16h 33m
United Airlines
Deal found 9/4£687
Sun 6/911:25
FSD
-
LHR
1 stop19h 10m
United Airlines
Sat 12/907:25
LHR
-
FSD
2 stops22h 12m
United Airlines
Deal found 13/4£689
Sun 6/918:37
FSD
-
LHR
2 stops16h 03m
Lufthansa
Sat 12/906:55
LHR
-
FSD
2 stops19h 09m
Lufthansa
Deal found 13/4£690
Sun 13/909:36
FSD
-
LHR
2 stops18h 24m
United Airlines
Sat 19/906:55
LHR
-
FSD
2 stops17h 20m
United Airlines
Deal found 13/4£691

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 13 April 2026.

Round-trip from

£651

One-way from

£248
United Airlines
  • United Airlines
  • 12/8-26/8
  • 3 total stops
  • 34h 06m total
  • South Dakota to London
Search Deals
4/8
  • 4/8
  • 1 total stop
  • 14h 56m total
  • South Dakota to London
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 13 April 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

Wed 12/8

10:13-12:35

1 stop19h 22m

London Heathrow

Wed 26/8

06:50-18:24

2 stops18h 34m

£651

Rapid CityLondon

RAP - LHR

RAPLHR

Rapid City

Tue 1/9

11:08-09:40

1 stop15h 32m

London Heathrow

Fri 11/9

06:50-10:12

2 stops34h 22m

£656

Sioux FallsLondon

FSD - LHR

FSDLHR

Sioux Falls Joe Foss Field

Tue 12/5

09:00-06:55

2 stops15h 55m

London Heathrow

Sun 17/5

10:25-21:52

2 stops17h 27m

£758

Sioux FallsLondon

FSD - LHR

FSDLHR

Sioux Falls Joe Foss Field

Thu 14/5

11:25-09:40

1 stop16h 15m

London Heathrow

Thu 28/5

06:50-18:00

2 stops17h 10m

£777

Rapid CityLondon

RAP - LCY

RAPLCY

Rapid City

Wed 12/8

06:20-09:30

2 stops20h 10m

London City

Wed 26/8

07:45-21:58

2 stops21h 13m

£801

Sioux FallsLondon

FSD - LGW

FSDLGW

Sioux Falls Joe Foss Field

Sat 9/5

16:17-16:00

2 stops17h 43m

London Gatwick

Sun 17/5

10:25-23:11

2 stops18h 46m

£830

Sioux FallsLondon

FSD - LHR

FSDLHR

Sioux Falls Joe Foss Field

Wed 20/5

06:00-11:50

2 stops23h 50m

London Heathrow

Wed 3/6

06:50-21:38

2 stops20h 48m

£852

Sioux FallsLondon

FSD - LGW

FSDLGW

Sioux Falls Joe Foss Field

Fri 1/5

13:44-09:25

2 stops13h 41m

London Gatwick

Thu 7/5

10:25-23:11

2 stops18h 46m

£871

Sioux FallsLondon

FSD - LGW

FSDLGW

Sioux Falls Joe Foss Field

Fri 1/5

13:44-09:25

2 stops13h 41m

London Gatwick

Fri 8/5

10:25-23:11

2 stops18h 46m

£871

Sioux FallsLondon

FSD - LCY

FSDLCY

Sioux Falls Joe Foss Field

Fri 1/5

13:44-07:55

2 stops12h 11m

London City

Thu 7/5

09:20-19:27

2 stops16h 07m

£884

Flights are sorted by cheapest return flights first.

Deals found on 8/4

Showing 1-10 of 41 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, March is the cheapest month in which you can book a flight from South Dakota to London (average of £447). Flying from South Dakota to London in June is currently the most expensive (average of £910). 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 14h 13m. United Airlines provides one of the quickest options available for as low as £651. 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 Rapid City - London Heathrow or Rapid City - London City, 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, March is the cheapest month in which you can book a flight from South Dakota to London (average of £447). Flying from South Dakota to London in June is currently the most expensive (average of £910). 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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Gatwick
Slough
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Hayes
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Watford
Kingston upon Thames
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Ipswich
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Guildford
Bishop's Stortford

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Fly with Cheapflights

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How does Cheapflights help users find flights from South Dakota to London?

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Why should you use Cheapflights to find cheap flight tickets from South Dakota to London?

Cheapflights helps you find that perfect flight to London from South Dakota by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

Can Cheapflights find flights from South Dakota to London with no change fees?

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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