In terms of precipitation, rainfall in London Heathrow Airport ranges from 40.0 - 70.0 inches per month. January is typically the wettest month, when rainfall can reach 70.0 mm. July is typically the driest time to visit London Heathrow Airport when rainfall is around 40.0 mm.

If weather is an important factor for your trip to London Heathrow Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 17.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 4.0 C).

What is the cheapest month to fly from South Dakota to London Heathrow Airport?

Our data shows that March tends to be the cheapest month to fly to London Heathrow Airport from South Dakota. Users have commonly found prices around £787 for the month, but tickets can be as low as £507. Due to multiple factors, prepare for potentially higher prices in January.

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

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.

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.

£465+ Flights from South Dakota to London Heathrow Airport

Cheap flight deals from South Dakota to Heathrow

Round-trip from	£465
Popular in	January
Cheapest in	March
Average price	£729

KLM
7/10-17/10
2 total stops
36h 36m total
South Dakota to London

Search Deals

Highest demand for flights based on searches. 19% potential increase in price (£143 potential increase over avg. return price).

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Cheapest flight prices on average. 8% potential price decrease (£47 potential savings vs. average return price).

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Average for round-trip flights in July 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 11 July 2025.

Tue 7/1010:58FSD - LHR

1 stop20h 12mKLM

Fri 17/1012:25LHR - FSD

1 stop16h 24mKLM

Deal found 10/7£465

Sat 11/1017:50RAP - LHR

1 stop32h 50mUnited Airlines

Tue 21/1017:40LHR - RAP

2 stops32h 00mUnited Airlines

Deal found 9/7£469

Tue 7/1011:19FSD - LHR

1 stop13h 01mUnited Airlines

Fri 17/1014:10LHR - FSD

1 stop14h 12mUnited Airlines

Deal found 9/7£481

Sat 11/1010:40RAP - LHR

1 stop19h 30mKLM

Tue 21/1009:55LHR - RAP

2 stops19h 15mKLM

Deal found 10/7£497

Fri 8/815:16FSD - LHR

1 stop15h 54mDelta

Fri 15/809:55LHR - FSD

2 stops19h 49mDelta

Deal found 9/7£497

Sat 8/1118:23FSD - LHR

2 stops32h 22mMultiple Airlines

Sat 22/1106:00LHR - FSD

3 stops34h 56mMultiple Airlines

Deal found 9/7£870

Fri 11/711:25FSD - LHR

1 stop14h 55mLufthansa

Thu 17/706:55LHR - FSD

2 stops19h 25mLufthansa

Deal found 10/7£1,310

Wed 1/1012:19FSD - LHR

1 stop13h 01mIberia

Wed 8/1015:30LHR - FSD

1 stop13h 12mIberia

Deal found 9/7£1,539

Best flights from South Dakota to Heathrow
Discover carefully curated flight deals from South Dakota to Heathrow that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 11 July 2025.

Tue 7/1010:58FSD - LHR

1 stop20h 12mKLM

Fri 17/1012:25LHR - FSD

1 stop16h 24mKLM

Deal found 10/7£465

Sat 11/1017:50RAP - LHR

1 stop32h 50mUnited Airlines

Tue 21/1017:40LHR - RAP

2 stops32h 00mUnited Airlines

Deal found 9/7£469

Fri 8/815:16FSD - LHR

1 stop15h 54mDelta

Fri 15/809:55LHR - FSD

2 stops19h 49mDelta

Deal found 9/7£497

Sat 8/1118:23FSD - LHR

2 stops32h 22mMultiple Airlines

Sat 22/1106:00LHR - FSD

3 stops34h 56mMultiple Airlines

Deal found 9/7£870

Tue 7/1011:19FSD - LHR

1 stop13h 01mUnited Airlines

Fri 17/1014:10LHR - FSD

1 stop14h 12mUnited Airlines

Deal found 9/7£481

Sat 11/1010:40RAP - LHR

1 stop19h 30mKLM

Tue 21/1009:55LHR - RAP

2 stops19h 15mKLM

Deal found 10/7£497

Wed 1/1012:19FSD - LHR

1 stop13h 01mIberia

Wed 8/1015:30LHR - FSD

1 stop13h 12mIberia

Deal found 9/7£1,539

Last-minute flights from South Dakota to Heathrow
Discover last-minute flight deals from South Dakota to Heathrow. Data last updated 11 July 2025 and is based on user searches.

Fri 11/711:25FSD - LHR

1 stop14h 55mLufthansa

Thu 17/706:55LHR - FSD

2 stops19h 25mLufthansa

Deal found 10/7£1,310

Fri 8/815:16FSD - LHR

1 stop15h 54mDelta

Fri 15/809:55LHR - FSD

2 stops19h 49mDelta

Deal found 9/7£497

Fri 8/815:16FSD - LHR

1 stop15h 54mKLM

Fri 15/813:05LHR - FSD

1 stop16h 01mKLM

Deal found 9/7£502

Sat 23/811:20FSD - LHR

2 stops16h 40mUnited Airlines

Sat 30/814:05LHR - FSD

2 stops26h 40mUnited Airlines

Deal found 9/7£537

Sat 23/817:59RAP - LHR

1 stop11h 21mUnited Airlines

Sat 30/814:05LHR - RAP

2 stops27h 17mUnited Airlines

Deal found 9/7£610

Cheapflights Fare Finder

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

Sioux FallsLondon

FSD - LHR

FSDLHR

Sioux Falls Joe Foss Field

Tue 7/10

10:58-13:10

1 stop20h 12m

London Heathrow

Fri 17/10

12:25-22:49

1 stop16h 24m

£465

Rapid CityLondon

RAP - LHR

RAPLHR

Rapid City

Sat 11/10

17:50-09:40

1 stop32h 50m

London Heathrow

Tue 21/10

17:40-18:40

2 stops32h 00m

£469

Sioux FallsLondon

FSD - LHR

FSDLHR

Sioux Falls Joe Foss Field

Tue 7/10

11:19-06:20

1 stop13h 01m

London Heathrow

Fri 17/10

14:10-22:22

1 stop14h 12m

£481

Sioux FallsLondon

FSD - LHR

FSDLHR

Sioux Falls Joe Foss Field

Fri 8/8

15:16-13:10

1 stop15h 54m

London Heathrow

Fri 15/8

09:55-23:44

2 stops19h 49m

£497

Rapid CityLondon

RAP - LHR

RAPLHR

Rapid City

Sat 11/10

10:40-13:10

1 stop19h 30m

London Heathrow

Tue 21/10

09:55-22:10

2 stops19h 15m

£497

Sioux FallsLondon

FSD - LHR

FSDLHR

Sioux Falls Joe Foss Field

Sat 8/11

18:23-08:45

2 stops32h 22m

London Heathrow

Sat 22/11

06:00-10:56

3 stops34h 56m

£870

Sioux FallsLondon

FSD - LHR

FSDLHR

Sioux Falls Joe Foss Field

Wed 1/10

12:19-07:20

1 stop13h 01m

London Heathrow

Wed 8/10

15:30-22:42

1 stop13h 12m

£1,539

Flights are sorted by cheapest return flights first.

Deals found on 10/7

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, January is the cheapest month in which you can book a flight from South Dakota to London Heathrow Airport (average of £112). Flying from South Dakota to London Heathrow Airport in August is currently the most expensive (average of £164). 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?

Reviews of airlines servicing Heathrow

Get a feel of what it's like to fly with Delta, KLM, andUnited Airlines from South Dakota to London Heathrow Airport by reading reviews from past customers. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

Delta

8.0

Very Good

7,951 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Delta

8.0

Very Good

7,951 reviews

Delta

8.0

Very Good

7,951 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

KLM

7.8

Good

1,372 reviews

Delta

8.0

Very Good

7,951 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

United Airlines

7.4

Good

8,846 reviews

Delta

8.0

Very Good

7,951 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Iberia

7.0

Good

2,828 reviews

Delta

8.0

Very Good

7,951 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Related info for your journey

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, January is the cheapest month in which you can book a flight from South Dakota to London Heathrow Airport (average of £112). Flying from South Dakota to London Heathrow Airport in August is currently the most expensive (average of £164). 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

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Deal

Northampton

Gatwick

Slough

Luton

Wembley

Crawley

Eastbourne

Ilford

Hayes

Ipswich

Folkestone

Southend-on-Sea

Watford

Winchester

Swindon

Maidstone

Browse thousands of different options on Cheapflights for your next trip

Top airline flying from South Dakota to Heathrow

Airline	Cheapest	Average	Flexibility	On-time
United Airlines	Cheapest£464	Average£704	FlexibilityNo cancel fee	On-time69%	Search United Airlines flights

Fly with Cheapflights

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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Cheap flights from South Dakota to London Heathrow Airport from £465

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 7/10. Fares are subject to change and may not be available on all flights or dates of travel.

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 11 July 2025.

Round-trip from

Popular in

Cheapest in

Average price

Find flight deals from South Dakota to Heathrow

Cheapest flights from South Dakota to HeathrowExplore 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 11 July 2025.

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 11 July 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from South Dakota to London Heathrow Airport that are best for you.

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.

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?

How much does it cost for a return flight from South Dakota to London Heathrow Airport?

Reviews of airlines servicing Heathrow

Get a feel of what it's like to fly with Delta, KLM, andUnited Airlines from South Dakota to London Heathrow Airport by reading reviews from past customers. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

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.

Can I find deals for flights from South Dakota to Heathrow that include hotel bookings?

How can I find direct flights from South Dakota to Heathrow?

Can I find deals for business class flights from South Dakota to Heathrow?

What is the cheapest month to book a flight from South Dakota to London Heathrow Airport?

Travelling to a place near South Dakota?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for South Dakota to Heathrow

See prices for flight routes from nearby airports that may be better suited for you.

Top airline flying from South Dakota to Heathrow

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?

Why should you use Cheapflights to find cheap flight tickets from South Dakota to Heathrow?

Can Cheapflights find flights from South Dakota to Heathrow with no change fees?

Can Cheapflights notify me if prices for flights from South Dakota to Heathrow become cheaper?

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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 11 July 2025.