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Cheap flights from South Dakota to London from £170

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 20/4. Fares are subject to change and may not be available on all flights or dates of travel.
FSD — LON
27 Dec — 3 Jan1
1 adult
1 adult, Economy, 0 bags

Find 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 27 November 2025.

Wed 3/1213:30FSD - LHR
1 stop11h 35mDelta
Wed 10/1206:30LHR - FSD
2 stops19h 10mDelta
Deal found 26/11£447
Wed 3/1213:30FSD - LHR
1 stop11h 35mKLM
Wed 10/1208:55LHR - FSD
1 stop20h 19mKLM
Deal found 26/11£451
Wed 3/1213:30FSD - LHR
2 stops15h 55mVirgin Atlantic
Wed 10/1209:40LHR - FSD
2 stops19h 32mVirgin Atlantic
Deal found 26/11£455
Wed 3/1205:05FSD - LHR
1 stop21h 55mVirgin Atlantic
Sun 7/1206:30LHR - FSD
2 stops19h 10mVirgin Atlantic
Deal found 26/11£485
Wed 3/1211:00FSD - LHR
2 stops13h 50mDelta
Sun 7/1208:40LHR - FSD
2 stops20h 32mDelta
Deal found 25/11£489
Wed 3/1213:30FSD - LCY
2 stops13h 20mDelta
Wed 10/1207:45LCY - FSD
2 stops17h 55mDelta
Deal found 26/11£489
Wed 3/1206:05RAP - LHR
1 stop18h 00mDelta
Sun 7/1211:05LHR - RAP
1 stop18h 41mDelta
Deal found 26/11£489
Wed 3/1208:00FSD - LHR
2 stops17h 10mUnited Airlines
Sun 7/1206:50LHR - FSD
2 stops16h 43mUnited Airlines
Deal found 24/11£639
Wed 3/1213:55FSD - LHR
1 stop13h 45mLufthansa
Sun 7/1210:25LHR - FSD
1 stop13h 08mLufthansa
Deal found 24/11£661
Tue 16/1208:00FSD - LHR
1 stop21h 15mUnited Airlines
Sat 27/1207:40LHR - FSD
1 stop15h 50mUnited Airlines
Deal found 26/11£717
Mon 15/1208:00FSD - LHR
2 stops17h 10mUnited Airlines
Tue 30/1213:25LHR - FSD
2 stops16h 30mUnited Airlines
Deal found 26/11£735
Sun 14/1211:20FSD - LHR
1 stop12h 35mLufthansa
Mon 29/1206:35LHR - FSD
2 stops40h 55mLufthansa
Deal found 26/11£736

Cheap 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 27 November 2025.

Round-trip from

£423

One-way from

£170

Popular in

January

Cheapest in

May

Average price

£698
Lufthansa
  • Lufthansa
  • 20/1-4/2
  • 3 total stops
  • 32h 44m total
  • South Dakota to London
Search Deals
Delta
  • Delta
  • 20/4
  • 2 total stops
  • 15h 21m total
  • South Dakota to London
Search Deals
Highest demand for flights based on searches. 19% potential increase in price (£155 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 9% potential price decrease (£53 potential savings vs. average return price).
Search Deals
Average for round-trip flights in November 2025
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 27 November 2025.
Use the filters below to find and compare flights from South Dakota to London that are best for you.

Fly from

South Dakota

Fly to

London

Route

Depart

Return

Price

Sioux FallsLondon

FSD - LHR

FSDLHR

Sioux Falls Joe Foss Field

Fri 9/1

15:11-07:55

1 stop10h 44m

London Heathrow

Fri 16/1

11:35-20:24

1 stop14h 49m

£458

Rapid CityLondon

RAP - LHR

RAPLHR

Rapid City

Sat 10/1

12:35-09:40

1 stop14h 05m

London Heathrow

Sat 17/1

14:30-20:32

2 stops37h 02m

£477

Sioux FallsLondon

FSD - LHR

FSDLHR

Sioux Falls Joe Foss Field

Fri 9/1

09:00-07:10

2 stops16h 10m

London Heathrow

Fri 16/1

13:25-10:47

2 stops27h 22m

£477

Sioux FallsLondon

FSD - LCY

FSDLCY

Sioux Falls Joe Foss Field

Tue 20/1

13:40-17:35

2 stops21h 55m

London City

Wed 4/2

18:10-21:50

2 stops33h 40m

£527

Sioux FallsLondon

FSD - LHR

FSDLHR

Sioux Falls Joe Foss Field

Thu 30/4

07:45-10:00

2 stops20h 15m

London Heathrow

Mon 4/5

17:50-17:34

2 stops29h 44m

£587

Sioux FallsLondon

FSD - LHR

FSDLHR

Sioux Falls Joe Foss Field

Thu 30/4

13:45-12:20

1 stop16h 35m

London Heathrow

Mon 4/5

20:25-20:46

2 stops30h 21m

£587

Sioux FallsLondon

FSD - LHR

FSDLHR

Sioux Falls Joe Foss Field

Thu 30/4

10:58-13:10

1 stop20h 12m

London Heathrow

Mon 4/5

13:05-22:11

1 stop15h 06m

£590

Sioux FallsLondon

FSD - LCY

FSDLCY

Sioux Falls Joe Foss Field

Wed 4/3

12:19-14:05

2 stops19h 46m

London City

Wed 18/3

07:50-22:14

2 stops19h 24m

£616

Sioux FallsLondon

FSD - LCY

FSDLCY

Sioux Falls Joe Foss Field

Thu 30/4

11:20-18:35

2 stops25h 15m

London City

Mon 4/5

09:15-20:46

2 stops17h 31m

£685

Sioux FallsLondon

FSD - LHR

FSDLHR

Sioux Falls Joe Foss Field

Tue 16/12

08:00-11:15

1 stop21h 15m

London Heathrow

Sat 27/12

07:40-17:30

1 stop15h 50m

£717

Flights are sorted by cheapest return flights first.

Deals found on 25/11

Showing 1-10 of 39 results
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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 £494). Flying from South Dakota to London in May is currently the most expensive (average of £854). 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.

How much does it cost for a return flight from South Dakota to London?

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 10h 44m. Lufthansa provides one of the quickest options available for as low as £458. There are 4189 mi between South Dakota and London. Both multi-stop and direct flights can be found to your destination and back.

  • What are the cheapest airlines to fly from South Dakota to London one-way?

    To fly one-way, consider booking your trip with Delta, which is currently one of the cheapest options available, starting at £170. American Airlines flights start at £170 while deals on KLM start at £170 one-way.

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

    While some choose either Sioux Falls Joe Foss Field - London City or Rapid City - London Heathrow, 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 £494). Flying from South Dakota to London in May is currently the most expensive (average of £854). 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 South Dakota to London

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Top airline flying from South Dakota to London

Discover the top airline that operate flights from South Dakota to London. 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 27 November 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest£574Average£725FlexibilityNo cancel feeOn-time69%
Search United Airlines flights

Fly with Cheapflights

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

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from South Dakota to London. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

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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Of course! You can now track prices for flights from South Dakota to London and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

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