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Cheap flights from London to South Dakota from £420

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 29/8. Fares are subject to change and may not be available on all flights or dates of travel.
LON — FSD
4 Jul — 11 Jul1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from London to South Dakota

Enter your travel dates to find the best prices.

Cheapest flights from London to South Dakota
Explore the most affordable flight options available from London to South Dakota. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 4 June 2026.

Wed 17/607:25
LHR
-
RAP
2 stops16h 47m
United Airlines
Wed 24/605:00
RAP
-
LHR
3 stops18h 45m
United Airlines
Deal found 3/6£839
Wed 7/1007:45
LHR
-
RAP
2 stops18h 35m
Lufthansa
Wed 14/1010:26
RAP
-
LHR
1 stop19h 09m
Lufthansa
Deal found 3/6£883
Wed 7/1007:30
LHR
-
RAP
2 stops18h 50m
United Airlines
Wed 14/1011:16
RAP
-
LHR
2 stops16h 24m
United Airlines
Deal found 31/5£903
Wed 7/1010:00
LCY
-
RAP
2 stops19h 39m
KLM
Wed 14/1011:30
RAP
-
LCY
2 stops13h 25m
KLM
Deal found 3/6£1,008
Sat 18/707:30
LHR
-
RAP
2 stops18h 54m
United Airlines
Sat 25/716:40
RAP
-
LHR
1 stop12h 45m
United Airlines
Deal found 3/6£1,020
Tue 14/707:25
LHR
-
RAP
2 stops22h 51m
United Airlines
Tue 21/711:20
RAP
-
LHR
2 stops17h 15m
United Airlines
Deal found 30/5£1,022
Tue 7/712:00
LHR
-
RAP
2 stops17h 33m
Lufthansa
Sat 18/707:00
RAP
-
LHR
2 stops17h 55m
Lufthansa
Deal found 1/6£1,023
Tue 14/706:30
LHR
-
ABR
2 stops19h 08m
Delta
Tue 21/714:56
ABR
-
LHR
1 stop16h 09m
Delta
Deal found 30/5£1,039
Tue 14/711:05
LHR
-
RAP
1 stop30h 19m
Lufthansa
Tue 21/705:00
RAP
-
LHR
1 stop21h 40m
Lufthansa
Deal found 30/5£1,042
Mon 15/607:30
LHR
-
RAP
2 stops16h 42m
United Airlines
Mon 22/612:31
RAP
-
LHR
2 stops15h 09m
United Airlines
Deal found 31/5£1,044
Tue 14/710:00
LCY
-
RAP
2 stops19h 26m
KLM
Tue 21/716:15
RAP
-
LCY
2 stops32h 00m
KLM
Deal found 30/5£1,080
Mon 15/608:25
LCY
-
RAP
2 stops21h 13m
Delta
Mon 22/606:48
RAP
-
LCY
2 stops18h 07m
Delta
Deal found 31/5£1,105

Find flight deals from London to South Dakota

Keep the following information in mind while searching for London to South Dakota flight deals. Data was last updated 4 June 2026.

Round-trip from

£839

One-way from

£420

Popular in

July

Cheapest in

January

Average price

£824
United Airlines
  • United Airlines
  • 17/6-24/6
  • 3 total stops
  • 35h 02m total
  • London to South Dakota
Search Deals
29/8
  • 29/8
  • 3 total stops
  • 38h 00m total
  • London to South Dakota
Search Deals
Highest demand for flights based on searches. 15% potential increase in price (£107 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (£24 potential savings vs. average return price).
Search Deals
Average for round-trip flights in June 2026
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from London to South Dakota 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 4 June 2026.
Use the filters below to find and compare flights from London to South Dakota that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

LondonRapid City

LHR - RAP

LHRRAP

London Heathrow

Wed 17/6

11:25-20:33

1 stop16h 08m

Rapid City

Wed 24/6

15:21-12:35

1 stop14h 14m

£864

LondonRapid City

LHR - RAP

LHRRAP

London Heathrow

Wed 7/10

14:50-22:28

1 stop14h 38m

Rapid City

Wed 14/10

08:55-12:35

1 stop20h 40m

£883

LondonRapid City

LHR - RAP

LHRRAP

London Heathrow

Wed 7/10

07:30-19:20

2 stops18h 50m

Rapid City

Wed 14/10

08:55-08:20

2 stops16h 25m

£904

LondonRapid City

LCY - RAP

LCYRAP

London City

Wed 7/10

10:00-22:39

2 stops19h 39m

Rapid City

Wed 14/10

11:30-07:55

2 stops13h 25m

£1,008

LondonRapid City

LHR - RAP

LHRRAP

London Heathrow

Sat 18/7

07:30-19:24

2 stops18h 54m

Rapid City

Sat 25/7

11:20-11:35

2 stops17h 15m

£1,020

LondonRapid City

LHR - RAP

LHRRAP

London Heathrow

Tue 14/7

07:25-23:16

2 stops22h 51m

Rapid City

Tue 21/7

11:20-11:35

2 stops17h 15m

£1,022

LondonRapid City

LHR - RAP

LHRRAP

London Heathrow

Tue 7/7

12:00-22:33

2 stops17h 33m

Rapid City

Sat 18/7

07:00-07:55

2 stops17h 55m

£1,023

LondonAberdeen

LHR - ABR

LHRABR

London Heathrow

Tue 14/7

06:30-19:38

2 stops19h 08m

Aberdeen

Tue 21/7

14:56-13:05

1 stop16h 09m

£1,039

LondonRapid City

LHR - RAP

LHRRAP

London Heathrow

Tue 14/7

11:05-10:24

1 stop30h 19m

Rapid City

Tue 21/7

05:00-09:40

1 stop21h 40m

£1,042

LondonRapid City

LHR - RAP

LHRRAP

London Heathrow

Mon 15/6

07:30-17:12

2 stops16h 42m

Rapid City

Mon 22/6

12:31-10:40

2 stops15h 09m

£1,044

Flights are sorted by cheapest return flights first.

Deals found on 3/6

Showing 1-10 of 47 resultsSorted by cheapest first
1
2
3
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5

Best time to book a flight from London to South Dakota

Have a flexible travel schedule? Discover the best time to fly to South Dakota from London 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 London to South Dakota

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

Currently, January is the cheapest month in which you can book a flight from London to South Dakota (average of £187). Flying from London to South Dakota in April is currently the most expensive (average of £846). 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.

Reviews of airlines servicing South Dakota

Get insights into the airlines that provide service to South Dakota. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to South Dakota. Reviews last updated 4 June 2026.
Get a feel of what it's like to fly with United Airlines and Lufthansa from London to South Dakota by reading reviews from past customers. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
9,774 reviews
Check prices

Entertainment

7.1

Comfort

7.3

Crew

8.1

Overall

7.4

Food

6.6

Boarding

7.7

Reviews

1 / 20
4.0
Okay

Dynasty,May 2026

LAX - EWR

The food wasn’t nice - Hosts were not that kind.
United Airlines
7.4
Good
9,774 reviews
United Airlines
7.4
Good
9,774 reviews
Check prices

Entertainment

7.1

Comfort

7.3

Crew

8.1

Overall

7.4

Food

6.6

Boarding

7.7

Reviews

1 / 20
4.0
Okay

Dynasty,May 2026

LAX - EWR

The food wasn’t nice - Hosts were not that kind.
Lufthansa
6.8
Okay
8,036 reviews
United Airlines
7.4
Good
9,774 reviews
Check prices

Entertainment

7.1

Comfort

7.3

Crew

8.1

Overall

7.4

Food

6.6

Boarding

7.7

Reviews

1 / 20
4.0
Okay

Dynasty,May 2026

LAX - EWR

The food wasn’t nice - Hosts were not that kind.

Related info for your journey

Find useful and relevant information for your journey from London to South Dakota. 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 London to South Dakota?

    Airlines like United Airlines, Lufthansa, and KLM fly from London to South Dakota in about 14h 38m. The time it takes to get you to your destination can typically vary by up to 5h 01m. The distance from London to South Dakota is about 4385 mi. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

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

    Most travelers choose London Heathrow - Aberdeen, London City - Rapid City or London Heathrow - Rapid City when deciding on the best route from London to South Dakota.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from London to South Dakota 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 London to South Dakota?

    Currently, January is the cheapest month in which you can book a flight from London to South Dakota (average of £187). Flying from London to South Dakota in April is currently the most expensive (average of £846). 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

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Alternative routes for London to South Dakota

See prices for flight routes from nearby airports that may be better suited for you.
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Top airline flying from London to South Dakota

Discover the top airline that operate flights from London to South Dakota. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 4 June 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest£680Average£1,073FlexibilityNo cancel feeOn-time69%
Search United Airlines flights

Fly with Cheapflights

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

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

Millions of users choose and trust Cheapflights to book the best flight deals from London to South Dakota for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

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

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

Can Cheapflights notify me if prices for flights from London to South Dakota become cheaper?

Not ready to book yet? You can track prices for flights from London to South Dakota on Cheapflights with our Price Alert feature and get notified when better prices are available.

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