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Cheap flights from South Dakota to London Heathrow Airport from £445

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 13/5. Fares are subject to change and may not be available on all flights or dates of travel.
FSD — LHR
31 May — 7 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 1 May 2026.

Tue 10/1117:00
FSD
-
LHR
1 stop34h 40m
United Airlines
Fri 13/1106:50
LHR
-
FSD
2 stops22h 46m
United Airlines
Deal found 26/4£598
Wed 21/1016:58
RAP
-
LHR
1 stop14h 27m
American Airlines
Tue 27/1008:25
LHR
-
RAP
2 stops19h 33m
American Airlines
Deal found 28/4£639
Wed 12/812:41
RAP
-
LHR
1 stop13h 19m
American Airlines
Wed 26/808:55
LHR
-
RAP
1 stop19h 40m
American Airlines
Deal found 27/4£666
Tue 10/1113:43
FSD
-
LHR
1 stop12h 52m
American Airlines
Fri 13/1111:55
LHR
-
FSD
1 stop15h 14m
American Airlines
Deal found 26/4£666
Wed 12/812:41
RAP
-
LHR
1 stop15h 14m
Multiple Airlines
Wed 26/812:55
LHR
-
RAP
1 stop15h 40m
Multiple Airlines
Deal found 29/4£667
Sat 12/918:00
FSD
-
LHR
1 stop12h 15m
Iberia
Tue 22/907:50
LHR
-
FSD
2 stops22h 01m
Iberia
Deal found 30/4£679
Mon 24/813:19
FSD
-
LHR
2 stops20h 21m
Lufthansa
Mon 31/820:25
LHR
-
FSD
2 stops29h 39m
Lufthansa
Deal found 27/4£690
Tue 1/906:00
RAP
-
LHR
2 stops21h 00m
United Airlines
Fri 11/906:50
LHR
-
RAP
2 stops18h 34m
United Airlines
Deal found 27/4£692
Tue 10/1108:15
FSD
-
LHR
2 stops20h 00m
Delta
Fri 13/1108:40
LHR
-
FSD
2 stops20h 11m
Delta
Deal found 26/4£692
Sun 13/914:25
RAP
-
LHR
2 stops16h 20m
Delta
Wed 21/1006:30
LHR
-
RAP
2 stops16h 16m
Delta
Deal found 27/4£693
Wed 21/1011:30
RAP
-
LHR
2 stops13h 10m
KLM
Tue 27/1020:25
LHR
-
RAP
2 stops32h 14m
KLM
Deal found 28/4£697
Wed 12/814:25
RAP
-
LHR
2 stops15h 50m
Delta
Wed 26/811:30
LHR
-
RAP
2 stops17h 28m
Delta
Deal found 29/4£698

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 1 May 2026.

Round-trip from

£639

One-way from

£445
American Airlines
  • American Airlines
  • 21/10-27/10
  • 3 total stops
  • 34h 00m total
  • South Dakota to London
Search Deals
13/5
  • 13/5
  • 1 total stop
  • 11h 57m 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 1 May 2026.
Use the filters below to find and compare flights from South Dakota to London Heathrow Airport that are best for you.

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Fly to

Route

Depart

Return

Price

Cheapest return flight

Rapid CityLondon

RAP - LHR

RAPLHR

Rapid City

Tue 1/9

15:23-11:15

1 stop12h 52m

London Heathrow

Fri 11/9

12:55-21:58

1 stop16h 03m

£667

Rapid CityLondon

RAP - LHR

RAPLHR

Rapid City

Tue 1/9

15:23-11:15

1 stop12h 52m

London Heathrow

Fri 11/9

11:10-21:58

2 stops17h 48m

£670

Rapid CityLondon

RAP - LHR

RAPLHR

Rapid City

Wed 9/9

05:00-06:30

2 stops18h 30m

London Heathrow

Wed 23/9

07:30-18:24

2 stops17h 54m

£701

Rapid CityLondon

RAP - LHR

RAPLHR

Rapid City

Tue 1/9

12:30-10:40

2 stops15h 10m

London Heathrow

Fri 11/9

09:30-19:25

2 stops16h 55m

£715

Rapid CityLondon

RAP - LHR

RAPLHR

Rapid City

Fri 21/8

12:19-09:05

1 stop13h 46m

London Heathrow

Mon 31/8

12:55-21:35

1 stop15h 40m

£740

Rapid CityLondon

RAP - LHR

RAPLHR

Rapid City

Fri 21/8

15:23-10:30

1 stop12h 07m

London Heathrow

Mon 31/8

09:45-21:35

2 stops18h 50m

£743

Rapid CityLondon

RAP - LHR

RAPLHR

Rapid City

Fri 21/8

07:00-06:30

2 stops16h 30m

London Heathrow

Mon 31/8

06:50-18:24

2 stops18h 34m

£765

Sioux FallsLondon

FSD - LHR

FSDLHR

Sioux Falls Joe Foss Field

Thu 14/5

11:25-12:25

1 stop19h 00m

London Heathrow

Tue 19/5

06:50-17:54

2 stops17h 04m

£834

Sioux FallsLondon

FSD - LHR

FSDLHR

Sioux Falls Joe Foss Field

Thu 14/5

15:15-11:55

1 stop14h 40m

London Heathrow

Fri 29/5

06:50-17:55

2 stops17h 05m

£858

Sioux FallsLondon

FSD - LHR

FSDLHR

Sioux Falls Joe Foss Field

Mon 25/5

11:16-08:30

1 stop15h 14m

London Heathrow

Mon 1/6

15:30-17:55

2 stops32h 25m

£1,057

Flights are sorted by cheapest return flights first.

Deals found on 29/4

Showing 1-10 of 25 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 £443). Flying from South Dakota to London Heathrow Airport in June is currently the most expensive (average of £896). 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 Heathrow Airport?

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 6h 08m. 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 £443). Flying from South Dakota to London Heathrow Airport in June is currently the most expensive (average of £896). 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
Wembley
Croydon
Northampton
Hounslow
Luton
Gatwick
Ilford
Slough
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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Boston to Stansted flights
Dulles Intl to London City flights
Hobby to Heathrow flights
Los Angeles to Stansted flights
LaGuardia to Stansted flights
Orlando to Gatwick flights
Los Angeles to London City flights
Baltimore to Gatwick flights
Philadelphia to Heathrow flights
Reagan-National to Gatwick flights
George Bush Intcntl to Heathrow flights
Minneapolis to Heathrow flights
O'Hare Intl to Gatwick flights
San Francisco to Gatwick flights
O'Hare Intl to Stansted flights
San Francisco to London City flights
O'Hare Intl to London City flights
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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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