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Cheap flights from South Dakota to London Heathrow Airport from £291

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 22/3. Fares are subject to change and may not be available on all flights or dates of travel.
FSD — LHR
6 Mar — 13 Mar1
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 4 February 2026.

Wed 1/406:00
FSD
-
LHR
2 stops20h 35m
United Airlines
Wed 22/406:50
LHR
-
FSD
2 stops16h 54m
United Airlines
Deal found 3/2£474
Thu 5/305:00
FSD
-
LHR
1 stop20h 05m
Delta
Thu 19/311:05
LHR
-
FSD
1 stop13h 15m
Delta
Deal found 4/2£484
Mon 9/313:34
FSD
-
LHR
2 stops13h 16m
Delta
Wed 25/311:05
LHR
-
FSD
1 stop13h 15m
Delta
Deal found 4/2£487
Thu 19/311:01
FSD
-
LHR
2 stops14h 49m
Virgin Atlantic
Thu 26/311:05
LHR
-
FSD
1 stop16h 59m
Virgin Atlantic
Deal found 1/2£488
Tue 6/1009:14
FSD
-
LHR
1 stop18h 26m
United Airlines
Fri 16/1017:40
LHR
-
FSD
2 stops33h 06m
United Airlines
Deal found 3/2£492
Wed 1/414:06
FSD
-
LHR
1 stop12h 59m
Multiple Airlines
Wed 22/411:10
LHR
-
FSD
1 stop13h 59m
Multiple Airlines
Deal found 3/2£496
Sun 22/313:34
FSD
-
LHR
1 stop12h 31m
Delta
Wed 1/409:55
LHR
-
FSD
2 stops19h 09m
Delta
Deal found 2/2£502
Tue 6/1012:31
FSD
-
LHR
1 stop12h 19m
Multiple Airlines
Fri 16/1012:55
LHR
-
FSD
1 stop14h 04m
Multiple Airlines
Deal found 4/2£503
Tue 6/1012:31
FSD
-
LHR
1 stop12h 19m
American Airlines
Fri 16/1012:55
LHR
-
FSD
1 stop14h 04m
American Airlines
Deal found 3/2£504
Fri 20/310:00
RAP
-
LHR
2 stops16h 25m
United Airlines
Fri 27/312:05
LHR
-
RAP
2 stops31h 08m
United Airlines
Deal found 3/2£641
Fri 6/210:45
RAP
-
LHR
1 stop15h 55m
United Airlines
Tue 10/211:35
LHR
-
RAP
1 stop14h 39m
United Airlines
Deal found 3/2£650
Thu 5/208:30
RAP
-
LHR
1 stop18h 10m
United Airlines
Mon 9/211:35
LHR
-
RAP
1 stop12h 37m
United Airlines
Deal found 1/2£688

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 4 February 2026.

Round-trip from

£474

One-way from

£291

Popular in

June

Cheapest in

September

Average price

£638
United Airlines
  • United Airlines
  • 1/4-22/4
  • 4 total stops
  • 37h 29m total
  • South Dakota to London
Search Deals
Lufthansa
  • Lufthansa
  • 22/3
  • 2 total stops
  • 16h 15m total
  • South Dakota to London
Search Deals
Highest demand for flights based on searches. 9% potential increase in price (£52 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£16 potential savings vs. average return price).
Search Deals
Average for round-trip flights in February 2026
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 4 February 2026.
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

Sioux FallsLondon

FSD - LHR

FSDLHR

Sioux Falls Joe Foss Field

Wed 1/4

06:00-08:35

2 stops20h 35m

London Heathrow

Wed 22/4

06:50-17:44

2 stops16h 54m

£474

Sioux FallsLondon

FSD - LHR

FSDLHR

Sioux Falls Joe Foss Field

Mon 9/3

18:35-05:55

1 stop30h 20m

London Heathrow

Fri 20/3

07:25-17:52

1 stop15h 27m

£484

Sioux FallsLondon

FSD - LHR

FSDLHR

Sioux Falls Joe Foss Field

Wed 1/4

14:06-09:05

1 stop12h 59m

London Heathrow

Wed 22/4

11:10-19:09

1 stop13h 59m

£496

Sioux FallsLondon

FSD - LHR

FSDLHR

Sioux Falls Joe Foss Field

Sun 22/3

13:34-07:05

1 stop12h 31m

London Heathrow

Wed 1/4

09:55-23:04

2 stops19h 09m

£502

Sioux FallsLondon

FSD - LHR

FSDLHR

Sioux Falls Joe Foss Field

Sat 28/3

15:10-05:45

1 stop33h 35m

London Heathrow

Sun 19/4

10:50-21:49

2 stops16h 59m

£512

Sioux FallsLondon

FSD - LHR

FSDLHR

Sioux Falls Joe Foss Field

Fri 1/5

07:30-10:00

2 stops20h 30m

London Heathrow

Thu 7/5

06:50-21:47

2 stops20h 57m

£514

Sioux FallsLondon

FSD - LHR

FSDLHR

Sioux Falls Joe Foss Field

Fri 1/5

11:24-06:55

2 stops13h 31m

London Heathrow

Fri 8/5

09:00-21:47

2 stops18h 47m

£514

Sioux FallsLondon

FSD - LHR

FSDLHR

Sioux Falls Joe Foss Field

Fri 1/5

11:24-06:55

2 stops13h 31m

London Heathrow

Mon 4/5

17:50-21:47

2 stops33h 57m

£524

Sioux FallsLondon

FSD - LHR

FSDLHR

Sioux Falls Joe Foss Field

Thu 30/4

11:25-11:35

2 stops18h 10m

London Heathrow

Mon 4/5

17:50-21:47

2 stops33h 57m

£525

Rapid CityLondon

RAP - LHR

RAPLHR

Rapid City

Fri 20/3

10:00-08:25

2 stops16h 25m

London Heathrow

Fri 27/3

12:05-13:13

2 stops31h 08m

£641

Flights are sorted by cheapest return flights first.

Deals found on 2/2

Showing 1-10 of 25 results
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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 £440). Flying from South Dakota to London Heathrow Airport in June is currently the most expensive (average of £790). 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, Delta, and American Airlines fly from South Dakota to London Heathrow Airport in about 12h 31m. The time it takes to get you to your destination can typically vary by up to 8h 04m. The distance from South Dakota to London Heathrow Airport is about 4189 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 £440). Flying from South Dakota to London Heathrow Airport in June is currently the most expensive (average of £790). 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
Luton
Northampton
Wembley
Gatwick
Slough
Ilford
Hounslow
Brentford
Hayes
Colchester
Watford
Guildford
Swindon
Bedford
Chelmsford
Eastbourne
Crawley
Kingston upon Thames

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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 4 February 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest£554Average£699FlexibilityNo 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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