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Cheap flights from South Dakota to London Heathrow Airport from £255

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 15/8. Fares are subject to change and may not be available on all flights or dates of travel.
RAP — LHR
12 Jun — 19 Jun1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from South Dakota to Heathrow

Enter your travel dates to find the best prices.

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 13 May 2026.

Wed 12/812:19
RAP
-
LHR
1 stop15h 56m
Multiple Airlines
Wed 26/812:55
LHR
-
RAP
1 stop15h 40m
Multiple Airlines
Deal found 13/5£670
Mon 7/917:23
FSD
-
LHR
1 stop12h 52m
Iberia
Tue 15/914:45
LHR
-
FSD
1 stop15h 06m
Iberia
Deal found 12/5£670
Wed 12/812:41
RAP
-
LHR
1 stop13h 19m
American Airlines
Wed 26/810:05
LHR
-
RAP
2 stops18h 30m
American Airlines
Deal found 13/5£674
Sat 12/912:30
FSD
-
LHR
1 stop16h 20m
Iberia
Tue 22/907:50
LHR
-
FSD
2 stops22h 01m
Iberia
Deal found 11/5£682
Sat 12/918:50
FSD
-
LHR
2 stops29h 40m
United Airlines
Tue 22/906:50
LHR
-
FSD
2 stops21h 02m
United Airlines
Deal found 12/5£700
Sat 12/918:00
FSD
-
LHR
1 stop10h 50m
American Airlines
Tue 22/909:45
LHR
-
FSD
1 stop20h 06m
American Airlines
Deal found 13/5£707
Wed 12/813:31
RAP
-
LHR
2 stops14h 09m
United Airlines
Wed 26/812:00
LHR
-
RAP
2 stops17h 28m
United Airlines
Deal found 12/5£718
Mon 19/1017:05
FSD
-
LHR
1 stop13h 20m
United Airlines
Sun 25/1006:50
LHR
-
FSD
2 stops15h 44m
United Airlines
Deal found 9/5£730
Mon 9/1109:14
FSD
-
LHR
2 stops15h 56m
United Airlines
Mon 16/1111:10
LHR
-
FSD
2 stops16h 33m
United Airlines
Deal found 12/5£733
Sat 15/815:08
FSD
-
LHR
1 stop33h 37m
United Airlines
Sat 22/806:55
LHR
-
FSD
2 stops19h 12m
United Airlines
Deal found 10/5£734
Fri 21/812:41
RAP
-
LHR
1 stop15h 14m
Multiple Airlines
Mon 31/812:55
LHR
-
RAP
1 stop15h 40m
Multiple Airlines
Deal found 10/5£744
Fri 21/812:19
RAP
-
LHR
1 stop15h 11m
American Airlines
Mon 31/809:45
LHR
-
RAP
2 stops18h 50m
American Airlines
Deal found 12/5£748

Find 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 13 May 2026.

Round-trip from

£670

One-way from

£255
12/8-26/8
  • 12/8-26/8
  • 2 total stops
  • 31h 36m total
  • South Dakota to London
Search Deals
Iberia
  • Iberia
  • 15/8
  • 1 total stop
  • 32h 42m total
  • South Dakota to London
Search Deals

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 13 May 2026.
Use the filters below to find and compare flights from South Dakota to London Heathrow Airport 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

12:41-10:55

1 stop15h 14m

London Heathrow

Wed 26/8

12:55-21:35

1 stop15h 40m

£670
Fastest return journey

Rapid CityLondon

RAP - LHR

RAPLHR

Rapid City

Tue 1/9

15:23-11:15

1 stop12h 52m

London Heathrow

Fri 11/9

14:25-21:58

1 stop14h 33m

£670

Rapid CityLondon

RAP - LHR

RAPLHR

Rapid City

Wed 12/8

12:41-09:00

1 stop13h 19m

London Heathrow

Wed 26/8

10:05-21:35

2 stops18h 30m

£674

Sioux FallsLondon

FSD - LHR

FSDLHR

Sioux Falls Joe Foss Field

Sat 12/9

09:36-10:00

2 stops42h 24m

London Heathrow

Tue 22/9

06:50-21:52

2 stops21h 02m

£700

Rapid CityLondon

RAP - LHR

RAPLHR

Rapid City

Wed 12/8

13:31-10:25

2 stops13h 54m

London Heathrow

Wed 26/8

12:15-22:28

2 stops17h 13m

£718

Sioux FallsLondon

FSD - LHR

FSDLHR

Sioux Falls Joe Foss Field

Mon 19/10

06:00-10:00

2 stops22h 00m

London Heathrow

Sun 25/10

06:50-17:34

2 stops15h 44m

£732

Rapid CityLondon

RAP - LHR

RAPLHR

Rapid City

Fri 21/8

12:41-10:55

1 stop15h 14m

London Heathrow

Mon 31/8

12:55-21:35

1 stop15h 40m

£744

Rapid CityLondon

RAP - LHR

RAPLHR

Rapid City

Fri 21/8

12:19-10:30

1 stop15h 11m

London Heathrow

Mon 31/8

08:55-21:35

1 stop19h 40m

£744

Rapid CityLondon

RAP - LHR

RAPLHR

Rapid City

Fri 21/8

06:48-07:10

2 stops17h 22m

London Heathrow

Mon 31/8

08:40-21:58

2 stops20h 18m

£771

Sioux FallsLondon

FSD - LHR

FSDLHR

Sioux Falls Joe Foss Field

Thu 11/6

11:16-06:45

1 stop13h 29m

London Heathrow

Thu 18/6

06:50-21:43

2 stops20h 53m

£932

Flights are sorted by cheapest return flights first.

Deals found on 10/5

Showing 1-10 of 26 resultsSorted by cheapest first
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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, March is the cheapest month in which you can book a flight from South Dakota to London Heathrow Airport (average of £444). Flying from South Dakota to London Heathrow Airport in June is currently the most expensive (average of £900). 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 American Airlines and United Airlines fly from South Dakota to London Heathrow Airport in about 12h 52m. The time it takes to get you to your destination can typically vary by up to 29h 32m. The distance from South Dakota to London Heathrow Airport is about 4385 mi. Both multi-stop and direct flights can be found to your destination and back.

  • 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, March is the cheapest month in which you can book a flight from South Dakota to London Heathrow Airport (average of £444). Flying from South Dakota to London Heathrow Airport in June is currently the most expensive (average of £900). 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
Hounslow
Croydon
Wembley
Northampton
Luton
Gatwick
Slough
Ilford
Hayes
Brentford
Colchester
Romford
Watford
Kingston upon Thames
Eastbourne
Swindon
Ipswich
Southend-on-Sea
Guildford

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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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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.

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