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Cheap flights from South Dakota to London Heathrow Airport from £542

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/10. Fares are subject to change and may not be available on all flights or dates of travel.
FSD — LHR
3 Sep — 10 Sep1
1 adult

Cheap flight deals from South Dakota to Heathrow

Keep the following information in mind while searching for South Dakota to Heathrow flight deals. Data was last updated 29 August 2025.

Round-trip from

£542

Popular in

January

Cheapest in

March

Average price

£663
United Airlines
  • United Airlines
  • 11/10-21/10
  • 3 total stops
  • 59h 58m total
  • South Dakota to London
Search Deals
Highest demand for flights based on searches. 21% potential increase in price (£161 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 8% potential price decrease (£47 potential savings vs. average return price).
Search Deals
Average for round-trip flights in August 2025
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Find flight deals from South Dakota to Heathrow

Cheapest flights from South Dakota to Heathrow
Explore the most affordable flight options available from South Dakota to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 29 August 2025.

Sat 11/1017:50RAP - LHR
1 stop32h 50mUnited Airlines
Tue 21/1014:05LHR - RAP
2 stops27h 08mUnited Airlines
Deal found 28/8£542
Wed 1/1008:00FSD - LHR
2 stops19h 35mUnited Airlines
Wed 8/1008:40LHR - FSD
2 stops19h 42mUnited Airlines
Deal found 28/8£542
Tue 7/1008:00FSD - LHR
1 stop16h 20mUnited Airlines
Fri 17/1007:30LHR - FSD
2 stops20h 52mUnited Airlines
Deal found 28/8£546
Wed 1/1017:33FSD - LHR
1 stop14h 52mAmerican Airlines
Wed 8/1008:20LHR - FSD
1 stop14h 15mAmerican Airlines
Deal found 28/8£555
Mon 6/1009:30FSD - LHR
2 stops14h 50mUnited Airlines
Tue 14/1008:30LHR - FSD
2 stops17h 51mUnited Airlines
Deal found 28/8£558
Mon 15/1209:00FSD - LHR
1 stop18h 40mUnited Airlines
Fri 9/109:00LHR - FSD
2 stops18h 50mUnited Airlines
Deal found 27/8£587
Tue 16/1208:00FSD - LHR
2 stops19h 10mUnited Airlines
Fri 9/109:00LHR - FSD
2 stops18h 50mUnited Airlines
Deal found 27/8£590
Sat 11/1011:15RAP - LHR
2 stops17h 30mUnited Airlines
Sat 18/1009:30LHR - RAP
2 stops16h 10mUnited Airlines
Deal found 27/8£648
Wed 10/917:00RAP - LHR
1 stop12h 45mAmerican Airlines
Wed 17/908:50LHR - RAP
2 stops19h 03mAmerican Airlines
Deal found 28/8£662
Wed 10/907:00RAP - LHR
2 stops19h 35mUnited Airlines
Wed 17/914:05LHR - RAP
2 stops27h 17mUnited Airlines
Deal found 27/8£682
Tue 9/917:00RAP - LHR
1 stop12h 45mAmerican Airlines
Thu 18/909:15LHR - RAP
1 stop15h 27mAmerican Airlines
Deal found 27/8£685
Tue 9/915:19RAP - LHR
1 stop11h 21mUnited Airlines
Thu 18/917:40LHR - RAP
2 stops29h 22mUnited Airlines
Deal found 27/8£688

Cheapflights Fare Finder

 
Customise your flight search to find flights from South Dakota to Heathrow 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 29 August 2025.
Use the filters below to find and compare flights from South Dakota to London Heathrow Airport that are best for you.

Fly from

South Dakota

Fly to

Heathrow

Route

Depart

Return

Price

Rapid CityLondon

RAP - LHR

RAPLHR

Rapid City

Sat 11/10

17:50-09:40

1 stop32h 50m

London Heathrow

Tue 21/10

14:05-10:13

2 stops27h 08m

£542

Sioux FallsLondon

FSD - LHR

FSDLHR

Sioux Falls Joe Foss Field

Wed 1/10

17:14-12:20

1 stop13h 06m

London Heathrow

Wed 8/10

08:40-22:22

2 stops19h 42m

£542

Sioux FallsLondon

FSD - LHR

FSDLHR

Sioux Falls Joe Foss Field

Tue 7/10

08:00-06:20

1 stop16h 20m

London Heathrow

Fri 17/10

07:30-22:22

2 stops20h 52m

£546

Sioux FallsLondon

FSD - LHR

FSDLHR

Sioux Falls Joe Foss Field

Mon 6/10

15:12-08:20

1 stop11h 08m

London Heathrow

Tue 14/10

06:30-22:22

2 stops21h 52m

£546

Sioux FallsLondon

FSD - LHR

FSDLHR

Sioux Falls Joe Foss Field

Tue 7/10

17:25-12:15

1 stop12h 50m

London Heathrow

Fri 17/10

11:05-22:42

1 stop17h 37m

£555

Sioux FallsLondon

FSD - LHR

FSDLHR

Sioux Falls Joe Foss Field

Wed 1/10

13:19-10:50

1 stop15h 31m

London Heathrow

Wed 8/10

10:30-21:16

1 stop16h 46m

£555

Rapid CityLondon

RAP - LHR

RAPLHR

Rapid City

Sat 11/10

15:20-12:20

1 stop14h 00m

London Heathrow

Sat 18/10

09:30-22:12

2 stops19h 42m

£648

Rapid CityLondon

RAP - LHR

RAPLHR

Rapid City

Wed 10/9

17:00-14:25

1 stop14h 25m

London Heathrow

Wed 17/9

08:50-20:53

2 stops19h 03m

£662

Rapid CityLondon

RAP - LHR

RAPLHR

Rapid City

Tue 9/9

17:00-14:25

1 stop14h 25m

London Heathrow

Wed 17/9

08:50-20:53

2 stops19h 03m

£662

Rapid CityLondon

RAP - LHR

RAPLHR

Rapid City

Wed 10/9

07:00-09:35

2 stops19h 35m

London Heathrow

Wed 17/9

14:05-10:22

2 stops27h 17m

£682

Flights are sorted by cheapest return flights first.

Deals found on 28/8

Best time to book a flight from South Dakota to Heathrow

Have a flexible travel schedule? Discover the best time to fly to Heathrow 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 Heathrow Airport

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

Currently, January is the cheapest month in which you can book a flight from South Dakota to London Heathrow Airport (average of £112). Flying from South Dakota to London Heathrow Airport in August is currently the most expensive (average of £164). 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 Heathrow. 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 Heathrow Airport?

    Airlines like United Airlines fly from South Dakota to London Heathrow Airport in about 32h 50m. The time it takes to get you to your destination can typically vary by up to . The distance from South Dakota to London Heathrow Airport is about 4385 mi.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from South Dakota to Heathrow 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 Heathrow Airport?

    Currently, January is the cheapest month in which you can book a flight from South Dakota to London Heathrow Airport (average of £112). Flying from South Dakota to London Heathrow Airport in August is currently the most expensive (average of £164). 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 Heathrow Airport?

Book flights to London Heathrow Airport if you plan to visit one of these locations
Milton Keynes
Croydon
Hounslow
Gatwick
Slough
Northampton
Luton
Deal
Wembley
Ilford
Crawley
Hayes
Watford
Folkestone
Ipswich
Chichester
Winchester
Eastbourne
Swindon
Dartford

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Alternative routes for South Dakota to Heathrow

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

Discover the top airline that operate flights from South Dakota to Heathrow. 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 29 August 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest£561Average£709FlexibilityNo 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 Heathrow?

Cheapflights helps you search for flights from South Dakota to Heathrow via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

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

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Heathrow from South Dakota.

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

Yes, we can. To see specific flights from South Dakota to Heathrow with no change fees, users can toggle flexible booking options after using the search form above to find flights.

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

Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!

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