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Cheap flights from South Dakota to London Heathrow Airport from £495

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 19/5. Fares are subject to change and may not be available on all flights or dates of travel.
FSD — LHR
3 May — 10 May1
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 3 April 2026.

Mon 7/1205:30
RAP
-
LHR
2 stops23h 20m
United Airlines
Wed 9/1206:35
LHR
-
RAP
2 stops19h 33m
United Airlines
Deal found 29/3£566
Mon 7/1209:14
FSD
-
LHR
2 stops15h 56m
United Airlines
Tue 8/1216:40
LHR
-
FSD
2 stops34h 06m
United Airlines
Deal found 2/4£568
Wed 12/812:30
RAP
-
LHR
1 stop14h 10m
United Airlines
Wed 26/806:50
LHR
-
RAP
2 stops18h 34m
United Airlines
Deal found 2/4£660
Sun 6/918:37
FSD
-
LHR
2 stops15h 03m
Lufthansa
Sun 13/909:00
LHR
-
FSD
2 stops18h 52m
Lufthansa
Deal found 31/3£664
Tue 1/916:41
RAP
-
LHR
1 stop12h 44m
United Airlines
Fri 11/917:40
LHR
-
RAP
2 stops30h 28m
United Airlines
Deal found 3/4£671
Wed 12/812:41
RAP
-
LHR
1 stop15h 14m
Multiple Airlines
Wed 26/812:55
LHR
-
RAP
1 stop16h 03m
Multiple Airlines
Deal found 1/4£682
Sat 7/1119:16
FSD
-
LHR
1 stop33h 09m
Iberia
Wed 18/1111:00
LHR
-
FSD
1 stop17h 17m
Iberia
Deal found 1/4£686
Fri 18/909:36
FSD
-
LHR
1 stop20h 49m
United Airlines
Wed 30/906:50
LHR
-
FSD
2 stops20h 53m
United Airlines
Deal found 2/4£698
Sun 3/507:30
FSD
-
LHR
2 stops16h 25m
United Airlines
Tue 19/506:50
LHR
-
FSD
2 stops17h 04m
United Airlines
Deal found 1/4£701
Fri 1/518:52
FSD
-
LHR
2 stops16h 13m
Lufthansa
Fri 8/507:25
LHR
-
FSD
2 stops20h 27m
Lufthansa
Deal found 1/4£705
Fri 1/518:52
FSD
-
LHR
2 stops18h 48m
Lufthansa
Thu 7/508:30
LHR
-
FSD
2 stops17h 50m
Lufthansa
Deal found 31/3£712

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 3 April 2026.

Round-trip from

£660

One-way from

£495
United Airlines
  • United Airlines
  • 12/8-26/8
  • 3 total stops
  • 32h 44m total
  • South Dakota to London
Search Deals
Brussels Airlines
  • Brussels Airlines
  • 19/5
  • 2 total stops
  • 18h 55m 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 3 April 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

Tue 1/9

10:13-12:20

1 stop19h 07m

London Heathrow

Fri 11/9

06:50-18:24

2 stops18h 34m

£660

Rapid CityLondon

RAP - LHR

RAPLHR

Rapid City

Wed 12/8

11:08-09:40

1 stop15h 32m

London Heathrow

Wed 26/8

06:50-18:24

2 stops18h 34m

£661

Sioux FallsLondon

FSD - LHR

FSDLHR

Sioux Falls Joe Foss Field

Fri 18/9

06:00-07:15

2 stops19h 15m

London Heathrow

Wed 30/9

06:50-21:43

2 stops20h 53m

£702

Sioux FallsLondon

FSD - LHR

FSDLHR

Sioux Falls Joe Foss Field

Fri 1/5

16:57-12:25

1 stop13h 28m

London Heathrow

Fri 8/5

06:50-17:54

2 stops17h 04m

£743

Sioux FallsLondon

FSD - LHR

FSDLHR

Sioux Falls Joe Foss Field

Wed 13/5

07:30-05:55

2 stops16h 25m

London Heathrow

Sun 17/5

06:50-21:52

2 stops21h 02m

£748

Sioux FallsLondon

FSD - LHR

FSDLHR

Sioux Falls Joe Foss Field

Thu 30/4

07:30-06:45

1 stop17h 15m

London Heathrow

Mon 4/5

15:30-20:20

2 stops34h 50m

£769

Sioux FallsLondon

FSD - LHR

FSDLHR

Sioux Falls Joe Foss Field

Fri 15/5

09:00-12:25

1 stop21h 25m

London Heathrow

Fri 29/5

06:50-21:38

2 stops20h 48m

£789

Sioux FallsLondon

FSD - LHR

FSDLHR

Sioux Falls Joe Foss Field

Thu 14/5

06:00-09:40

1 stop21h 40m

London Heathrow

Thu 28/5

06:50-23:26

2 stops22h 36m

£790

Sioux FallsLondon

FSD - LHR

FSDLHR

Sioux Falls Joe Foss Field

Thu 14/5

09:00-07:15

2 stops16h 15m

London Heathrow

Fri 29/5

06:50-18:00

2 stops17h 10m

£792

Sioux FallsLondon

FSD - LHR

FSDLHR

Sioux Falls Joe Foss Field

Wed 20/5

18:52-09:35

2 stops32h 43m

London Heathrow

Wed 3/6

06:50-21:38

2 stops20h 48m

£801

Flights are sorted by cheapest return flights first.

Deals found on 2/4

Showing 1-10 of 21 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 £455). Flying from South Dakota to London Heathrow Airport in June is currently the most expensive (average of £927). 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 United Airlines fly from South Dakota to London Heathrow Airport in about 14h 10m. 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, March is the cheapest month in which you can book a flight from South Dakota to London Heathrow Airport (average of £455). Flying from South Dakota to London Heathrow Airport in June is currently the most expensive (average of £927). 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
Gatwick
Slough
Ilford
Luton
Hayes
Brentford
Colchester
Guildford
Watford
Kingston upon Thames
Romford
Eastbourne
Swindon
Bedford
Chelmsford

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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 3 April 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest£573Average£724FlexibilityNo cancel feeOn-time69%
Search United Airlines flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

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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