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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
14 Dec — 21 Dec1
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 14 November 2025.

Tue 2/1211:02RAP - LHR
1 stop13h 03mKLM
Tue 9/1217:50LHR - RAP
2 stops28h 55mKLM
Deal found 13/11£470
Wed 10/1214:55RAP - LHR
1 stop11h 45mUnited Airlines
Wed 17/1207:40LHR - RAP
2 stops18h 14mUnited Airlines
Deal found 12/11£485
Fri 28/1110:58FSD - LHR
1 stop14h 07mMultiple Airlines
Wed 3/1206:20LHR - FSD
2 stops15h 25mMultiple Airlines
Deal found 10/11£486
Fri 28/1110:58FSD - LHR
1 stop14h 07mKLM
Wed 3/1208:55LHR - FSD
1 stop20h 19mKLM
Deal found 10/11£491
Tue 2/1211:02RAP - LHR
1 stop13h 03mVirgin Atlantic
Tue 9/1211:05LHR - RAP
1 stop18h 41mVirgin Atlantic
Deal found 13/11£492
Fri 28/1108:00FSD - LHR
2 stops17h 10mUnited Airlines
Wed 3/1211:10LHR - FSD
2 stops16h 41mUnited Airlines
Deal found 10/11£506
Fri 14/1111:17FSD - LHR
2 stops16h 03mUnited Airlines
Tue 18/1106:35LHR - FSD
2 stops21h 11mUnited Airlines
Deal found 12/11£507
Sun 14/1205:14FSD - LHR
1 stop19h 51mDelta
Thu 25/1208:40LHR - FSD
2 stops20h 28mDelta
Deal found 12/11£517
Fri 14/1105:05FSD - LHR
1 stop21h 55mKLM
Sun 16/1110:45LHR - FSD
1 stop18h 24mKLM
Deal found 10/11£529
Fri 14/1110:58FSD - LHR
1 stop14h 07mDelta
Wed 19/1111:05LHR - FSD
1 stop31h 45mDelta
Deal found 12/11£530
Fri 14/1110:58FSD - LHR
2 stops14h 52mVirgin Atlantic
Sun 16/1108:55LHR - FSD
1 stop20h 14mVirgin Atlantic
Deal found 10/11£532
Sat 13/1217:21FSD - LHR
1 stop34h 19mUnited Airlines
Thu 25/1211:35LHR - FSD
1 stop34h 56mUnited Airlines
Deal found 12/11£542

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 14 November 2025.

Round-trip from

£475

One-way from

£170

Popular in

January

Cheapest in

May

Average price

£834
United Airlines
  • United Airlines
  • 14/1-20/1
  • 4 total stops
  • 48h 20m total
  • South Dakota to London
Search Deals
20/4
  • 20/4
  • 1 total stop
  • 15h 09m total
  • South Dakota to London
Search Deals
Highest demand for flights based on searches. 18% potential increase in price (£147 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 8% potential price decrease (£52 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 14 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

Rapid CityLondon

RAP - LHR

RAPLHR

Rapid City

Sun 25/1

06:00-07:05

1 stop18h 05m

London Heathrow

Thu 26/2

08:40-22:28

2 stops20h 48m

£476

Sioux FallsLondon

FSD - LHR

FSDLHR

Sioux Falls Joe Foss Field

Thu 8/1

15:11-07:55

1 stop10h 44m

London Heathrow

Tue 13/1

07:40-17:18

2 stops15h 38m

£476

Rapid CityLondon

RAP - LHR

RAPLHR

Rapid City

Wed 10/12

14:55-09:40

1 stop11h 45m

London Heathrow

Wed 17/12

07:40-18:54

2 stops18h 14m

£485

Sioux FallsLondon

FSD - LHR

FSDLHR

Sioux Falls Joe Foss Field

Wed 14/1

10:50-07:05

1 stop14h 15m

London Heathrow

Tue 20/1

12:30-23:14

1 stop16h 44m

£496

Rapid CityLondon

RAP - LHR

RAPLHR

Rapid City

Sun 25/1

14:08-12:15

1 stop15h 07m

London Heathrow

Thu 26/2

15:00-22:19

1 stop14h 19m

£496

Sioux FallsLondon

FSD - LHR

FSDLHR

Sioux Falls Joe Foss Field

Mon 16/2

12:19-06:55

1 stop12h 36m

London Heathrow

Fri 20/2

11:00-19:05

1 stop14h 05m

£505

Sioux FallsLondon

FSD - LHR

FSDLHR

Sioux Falls Joe Foss Field

Sun 14/12

05:14-07:05

1 stop19h 51m

London Heathrow

Thu 25/12

08:40-23:08

2 stops20h 28m

£517

Sioux FallsLondon

FSD - LHR

FSDLHR

Sioux Falls Joe Foss Field

Mon 27/4

16:20-09:05

1 stop10h 45m

London Heathrow

Wed 6/5

13:10-22:12

1 stop15h 02m

£517

Sioux FallsLondon

FSD - LCY

FSDLCY

Sioux Falls Joe Foss Field

Wed 14/1

15:11-17:40

2 stops44h 29m

London City

Tue 20/1

18:15-17:18

2 stops29h 03m

£541

Sioux FallsLondon

FSD - LHR

FSDLHR

Sioux Falls Joe Foss Field

Mon 27/4

13:38-12:20

1 stop16h 42m

London Heathrow

Wed 6/5

10:50-22:56

2 stops18h 06m

£541

Flights are sorted by cheapest return flights first.

Deals found on 13/11

Showing 1-10 of 52 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 £495). Flying from South Dakota to London in May is currently the most expensive (average of £857). 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 11h 45m. Delta provides one of the quickest options available for as low as £485. 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 cheapest airlines to fly from South Dakota to London one-way?

    To fly one-way, consider booking your trip with American Airlines, which is currently one of the cheapest options available, starting at £170. Iberia flights start at £227 while deals on United Airlines start at £299 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 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, September is the cheapest month in which you can book a flight from South Dakota to London (average of £495). Flying from South Dakota to London in May is currently the most expensive (average of £857). 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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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 14 November 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest£576Average£727FlexibilityNo 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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