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$449+ Cheap flights from South Dakota to Heathrow (LHR)

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 9/22. Fares are subject to change and may not be available on all flights or dates of travel.
FSD — LHR
Oct 15 — Oct 221
Wed 10/15
Wed 10/22
1 adult, Economy
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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 September 15, 2025.

Round-trip from

$624
(Delta)

One-way from

$449
(American Airlines)

Popular in

January

Cheapest in

May

Average price

$914
From South Dakota to London Heathrow
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One-way flight from South Dakota to London Heathrow
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Highest demand for flights based on searches. 14% potential increase in price ($192 potential increase over avg. RT price).
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Cheapest flight prices on average. 7% potential price decrease ($84 potential savings vs. average RT price).
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Average for round-trip flights in September 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 September 15, 2025.

This Delta deal was found by Cheapflights users on 9/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/281:35 pmFSD - LHR
1 stop12h 30mDelta
Tue 11/48:55 amLHR - FSD
2 stops20h 01mDelta
Deal found 9/12$623
This Delta deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/1210:33 amRAP - LHR
1 stop19h 37mDelta
Thu 10/238:40 amLHR - RAP
2 stops20h 56mDelta
Deal found 9/14$624
This Delta deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/296:05 amRAP - LHR
2 stops20h 55mDelta
Wed 11/56:30 amLHR - RAP
2 stops23h 06mDelta
Deal found 9/14$629
This KLM deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/1210:33 amRAP - LHR
1 stop19h 37mKLM
Thu 10/2312:25 pmLHR - RAP
1 stop17h 11mKLM
Deal found 9/14$631
This KLM deal was found by Cheapflights users on 9/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/281:35 pmFSD - LHR
1 stop12h 30mKLM
Tue 11/412:30 pmLHR - FSD
1 stop16h 26mKLM
Deal found 9/12$631
This Delta deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/74:24 pmFSD - LHR
1 stop14h 46mDelta
Fri 10/178:25 pmLHR - FSD
2 stops22h 30mDelta
Deal found 9/14$635
This Delta deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/12:32 pmFSD - LHR
2 stops17h 18mDelta
Wed 10/89:00 amLHR - FSD
2 stops19h 56mDelta
Deal found 9/15$655
This United Airlines deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/66:10 pmFSD - LHR
1 stop11h 35mUnited Airlines
Tue 10/147:30 amLHR - FSD
2 stops20h 52mUnited Airlines
Deal found 9/15$700
This United Airlines deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/18:30 amRAP - LHR
2 stops16h 10mUnited Airlines
Fri 10/106:55 amLHR - RAP
2 stops18h 45mUnited Airlines
Deal found 9/14$702
This United Airlines deal was found by Cheapflights users on 9/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/19:30 amFSD - LHR
2 stops16h 10mUnited Airlines
Wed 10/87:25 amLHR - FSD
2 stops18h 56mUnited Airlines
Deal found 9/13$702
This United Airlines deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/288:47 amFSD - LHR
2 stops17h 23mUnited Airlines
Mon 11/244:40 pmLHR - FSD
2 stops35h 06mUnited Airlines
Deal found 9/14$707
This United Airlines deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/308:30 amRAP - LHR
1 stop20h 50mUnited Airlines
Thu 10/911:25 amLHR - RAP
1 stop16h 09mUnited Airlines
Deal found 9/14$712

Cheapflights Fare Finder

 
Customize 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 2,558,603 searches. Data last updated September 15, 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

Sioux FallsLondon

FSD - LHR

FSDLHR

Sioux Falls Joe Foss Field

Tue 10/28

1:35 pm-7:05 am

1 stop12h 30m

London Heathrow

Tue 11/4

8:55 am-10:56 pm

2 stops20h 01m

$623

Rapid CityLondon

RAP - LHR

RAPLHR

Rapid City

Wed 10/29

6:05 am-7:05 am

1 stop19h 00m

London Heathrow

Wed 11/5

8:40 am-10:36 pm

2 stops20h 56m

$624

Rapid CityLondon

RAP - LHR

RAPLHR

Rapid City

Sun 10/12

10:33 am-1:10 pm

1 stop19h 37m

London Heathrow

Thu 10/23

12:25 pm-10:36 pm

1 stop17h 11m

$631

Sioux FallsLondon

FSD - LHR

FSDLHR

Sioux Falls Joe Foss Field

Tue 10/28

1:35 pm-7:05 am

1 stop12h 30m

London Heathrow

Tue 11/4

12:30 pm-10:56 pm

1 stop16h 26m

$631

Sioux FallsLondon

FSD - LHR

FSDLHR

Sioux Falls Joe Foss Field

Tue 10/7

1:35 pm-1:30 pm

2 stops17h 55m

London Heathrow

Fri 10/17

8:25 pm-12:55 pm

2 stops22h 30m

$635

Sioux FallsLondon

FSD - LHR

FSDLHR

Sioux Falls Joe Foss Field

Wed 10/1

2:32 pm-1:50 pm

2 stops17h 18m

London Heathrow

Wed 10/8

9:00 am-10:56 pm

2 stops19h 56m

$655

Sioux FallsLondon

FSD - LHR

FSDLHR

Sioux Falls Joe Foss Field

Tue 10/7

8:00 am-6:20 am

1 stop16h 20m

London Heathrow

Fri 10/17

7:30 am-10:22 pm

2 stops20h 52m

$700

Sioux FallsLondon

FSD - LHR

FSDLHR

Sioux Falls Joe Foss Field

Mon 10/6

5:14 pm-12:20 pm

1 stop13h 06m

London Heathrow

Tue 10/14

7:30 am-10:22 pm

2 stops20h 52m

$700

Sioux FallsLondon

FSD - LHR

FSDLHR

Sioux Falls Joe Foss Field

Wed 10/1

9:30 am-7:40 am

2 stops16h 10m

London Heathrow

Wed 10/8

7:25 am-8:21 pm

2 stops18h 56m

$702

Rapid CityLondon

RAP - LHR

RAPLHR

Rapid City

Wed 10/1

3:20 pm-9:40 am

1 stop11h 20m

London Heathrow

Fri 10/10

1:40 pm-10:13 am

2 stops27h 33m

$712

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/13

Showing 1-10 of 21 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 round-trip 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, November is the cheapest month in which you can book a flight from South Dakota to London Heathrow Airport (average of $661). Flying from South Dakota to London Heathrow Airport in June is currently the most expensive (average of $1,097). 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.

What is the cheapest time of day to fly from SD to LHR?

Find hourly flight availability from South Dakota to Heathrow. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 15, 2025.

When flying from South Dakota to London Heathrow Airport, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

How much does it cost to fly round-trip 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?

    For as low as $712, Delta can have you in London Heathrow Airport from South Dakota in 11h 20m. The distance from South Dakota to London Heathrow Airport is about 4385 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • 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 vacation 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, November is the cheapest month in which you can book a flight from South Dakota to London Heathrow Airport (average of $661). Flying from South Dakota to London Heathrow Airport in June is currently the most expensive (average of $1,097). 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

Traveling to a place near London Heathrow Airport?

Book flights to London Heathrow Airport if you plan to visit one of these locations
Hounslow
Hayes
Southend-on-Sea
Harrow
Canterbury
Croydon
Eastleigh
Dartford
Dover
Winchester
Orpington
Northampton
Gatwick
Borehamwood
Broadway
Aylesbury
Bedford
Wembley
Folkestone
Chichester

Browse thousands of different options on Cheapflights for your next trip

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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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Los Angeles to London City flights
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San Francisco to Gatwick flights
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Dallas/Fort Worth to Gatwick flights
O'Hare Intl to London City flights
San Francisco to London City flights
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San Diego to Heathrow flights
LaGuardia to London City flights

Top 3 airlines flying from South Dakota to Heathrow

Discover the top 3 airlines 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 2,558,603 searches. Data last updated September 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$679Average$872FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$748Average$1,054FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$750Average$1,051FlexibilityNo cancel feeOn-time71%

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