What is the cheapest airline that flies from South Dakota to London Heathrow?

Finnair and British Airways are the most popular carriers operating from South Dakota to London Heathrow

How long does it take to fly to London Heathrow Airport?

On average, it takes 10h 52m to fly from South Dakota to London Heathrow Airport if you fly out of Sioux Falls (the most popular airport in South Dakota) and into London Heathrow Airport (the most popular airport in London Heathrow Airport). If you’re flying out of Rapid City and into London Heathrow Airport, then the flight time is around 13h 35m.

How many operators does momondo search for flights from South Dakota to London Heathrow Airport?

As of June 2026, there are 2 operators available to choose from for flights from South Dakota to London Heathrow Airport.

How old do you have to be to fly from South Dakota to London Heathrow Airport?

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from South Dakota to London Heathrow Airport.

What documentation or ID do you need to fly to London Heathrow Airport?

The necessary travel and health documents for your London Heathrow Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

$843 Cheap Flights from South Dakota to London Heathrow Airport in 2026

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from South Dakota to London

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

5:48 pm - 9:40 am

RAP

LHR

32h 52m

1 stop

9:30 am - 10:08 pm

LHR

RAP

19h 38m

2 stops

$843United Airlines

Tue, Dec 1 - Fri, Dec 4

5:48 pm - 9:40 am

RAP

LHR

32h 52m

1 stop

9:30 am - 7:08 pm

LHR

RAP

16h 38m

2 stops

$844United Airlines

Tue, Dec 1 - Fri, Dec 4

5:48 pm - 9:40 am

RAP

LHR

32h 52m

1 stop

7:30 am - 10:08 pm

LHR

RAP

21h 38m

2 stops

$845United Airlines

Tue, Dec 1 - Fri, Dec 4

5:25 am - 11:40 am

FSD

LHR

24h 15m

1 stop

6:30 am - 3:50 pm

LHR

FSD

15h 20m

2 stops

$866KLM

Mon, Nov 2 - Wed, Nov 11

3:03 pm - 7:55 am

FSD

LHR

10h 52m

1 stop

6:50 am - 5:34 pm

LHR

FSD

16h 44m

2 stops

$873United Airlines

Mon, Nov 2 - Fri, Nov 13

9:35 am - 7:10 am

FSD

LHR

15h 35m

2 stops

6:50 am - 5:34 pm

LHR

FSD

16h 44m

2 stops

$876United Airlines

Sun, Nov 1 - Fri, Nov 13

12:50 pm - 12:00 pm

RAP

LHR

16h 10m

2 stops

7:30 am - 7:08 pm

LHR

RAP

18h 38m

2 stops

$888United Airlines

Tue, Dec 1 - Fri, Dec 4

11:30 am - 7:05 am

RAP

LHR

13h 35m

1 stop

8:25 pm - 3:46 pm

LHR

RAP

26h 21m

2 stops

$924Multiple Airlines

Thu, Oct 29 - Tue, Nov 3

4:28 pm - 1:05 pm

FSD

LHR

14h 37m

1 stop

8:40 am - 7:43 pm

LHR

FSD

17h 03m

2 stops

$933Delta

Sun, Aug 23 - Thu, Sep 10

6:39 pm - 6:40 pm

FSD

LHR

18h 01m

2 stops

9:00 am - 11:12 pm

LHR

FSD

20h 12m

2 stops

$934Lufthansa

Wed, Aug 26 - Wed, Sep 9

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KLM flights from South Dakota to London Heathrow Airport

Our best KLM deals on South Dakota to London Heathrow Airport flight tickets

KLM

Nov 2

FSD5:25 amSioux Falls Joe Foss Field

24h 15m

1 stop

LHR11:40 amLondon Heathrow

Nov 11

LHR6:30 amLondon Heathrow

15h 20m

2 stops

FSD3:50 pmSioux Falls Joe Foss Field

$866

KLM

Aug 31

FSD5:30 amSioux Falls Joe Foss Field

18h 55m

1 stop

LHR6:25 amLondon Heathrow

Sep 9

LHR6:30 amLondon Heathrow

15h 16m

2 stops

FSD3:46 pmSioux Falls Joe Foss Field

$941

KLM

Aug 31

FSD5:30 amSioux Falls Joe Foss Field

18h 55m

1 stop

LHR6:25 amLondon Heathrow

Sep 9

LHR6:30 amLondon Heathrow

15h 16m

2 stops

FSD3:46 pmSioux Falls Joe Foss Field

$959

American Airlines flights from South Dakota to London Heathrow Airport

Our best American Airlines deals on South Dakota to London Heathrow Airport flight tickets

American Airlines

Oct 29

RAP4:58 pmRapid City

13h 02m

1 stop

LHR12:00 pmLondon Heathrow

Nov 3

LHR1:50 pmLondon Heathrow

14h 27m

1 stop

RAP9:17 pmRapid City

$952

American Airlines

Aug 5

RAP3:21 pmRapid City

13h 54m

1 stop

LHR12:15 pmLondon Heathrow

Aug 12

LHR10:05 amLondon Heathrow

18h 30m

1 stop

RAP9:35 pmRapid City

$988

American Airlines

Oct 3

FSD12:11 pmSioux Falls Joe Foss Field

17h 04m

1 stop

LHR11:15 amLondon Heathrow

Oct 10

LHR8:55 amLondon Heathrow

14h 27m

1 stop

FSD5:22 pmSioux Falls Joe Foss Field

$1,003

momondo 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

Cheapest round-trip

Rapid CityLondon

RAP - LHR

RAPLHR

Rapid City

Tue 12/1

5:48 pm-9:40 am

1 stop32h 52m

London Heathrow

Fri 12/4

9:30 am-10:08 pm

2 stops19h 38m

$843

Rapid CityLondon

RAP - LHR

RAPLHR

Rapid City

Tue 12/1

5:48 pm-9:40 am

1 stop32h 52m

London Heathrow

Fri 12/4

9:30 am-7:08 pm

2 stops16h 38m

$844

Rapid CityLondon

RAP - LHR

RAPLHR

Rapid City

Tue 12/1

5:48 pm-9:40 am

1 stop32h 52m

London Heathrow

Fri 12/4

7:30 am-10:08 pm

2 stops21h 38m

$845

Sioux FallsLondon

FSD - LHR

FSDLHR

Sioux Falls Joe Foss Field

Mon 11/2

5:25 am-11:40 am

1 stop24h 15m

London Heathrow

Wed 11/11

6:30 am-3:50 pm

2 stops15h 20m

$866

Quickest round-trip

Sioux FallsLondon

FSD - LHR

FSDLHR

Sioux Falls Joe Foss Field

Mon 11/2

3:03 pm-7:55 am

1 stop10h 52m

London Heathrow

Fri 11/13

6:50 am-5:34 pm

2 stops16h 44m

$873

Sioux FallsLondon

FSD - LHR

FSDLHR

Sioux Falls Joe Foss Field

Sun 11/1

9:35 am-7:10 am

2 stops15h 35m

London Heathrow

Fri 11/13

6:50 am-5:34 pm

2 stops16h 44m

$876

Rapid CityLondon

RAP - LHR

RAPLHR

Rapid City

Tue 12/1

12:50 pm-12:00 pm

2 stops16h 10m

London Heathrow

Fri 12/4

7:30 am-7:08 pm

2 stops18h 38m

$888

Rapid CityLondon

RAP - LHR

RAPLHR

Rapid City

Thu 10/29

11:30 am-7:05 am

1 stop13h 35m

London Heathrow

Tue 11/3

8:25 pm-3:46 pm

2 stops26h 21m

$924

Sioux FallsLondon

FSD - LHR

FSDLHR

Sioux Falls Joe Foss Field

Sun 8/23

4:28 pm-1:05 pm

1 stop14h 37m

London Heathrow

Thu 9/10

8:40 am-7:43 pm

2 stops17h 03m

$933

Sioux FallsLondon

FSD - LHR

FSDLHR

Sioux Falls Joe Foss Field

Wed 8/26

6:39 pm-6:40 pm

2 stops18h 01m

London Heathrow

Wed 9/9

9:00 am-11:12 pm

2 stops20h 12m

$934

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 13 resultsSorted by cheapest first

How to get the cheapest flight ticket from South Dakota to London Heathrow Airport

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Other information

What is the cheapest month to fly to London Heathrow Airport?

The month of November is, on average, the cheapest month to fly to London Heathrow Airport from South Dakota, with most prices found around $0. If you’re not able to fly to London Heathrow Airport in November, then October is your next best option. Flight prices from South Dakota to London Heathrow Airport during October average around $0.

Cheap South Dakota to London Heathrow Airport flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from South Dakota to London Heathrow Airport

Fastest flight time	10h 52m
Direct flights	None

The fastest flight from South Dakota to London Heathrow Airport takes 10h 52m

There are no direct flights from South Dakota to London Heathrow Airport. There are no popular flight routes from South Dakota to London Heathrow Airport.

Search flight deals

Frequently asked questions about flying from South Dakota to London Heathrow Airport

When did momondo last update prices for flights from South Dakota to London Heathrow Airport?
Prices for flights from South Dakota to London Heathrow Airport are updated daily.
How many operators does momondo search for flights from South Dakota to London Heathrow Airport?
As of June 2026, there are 2 operators available to choose from for flights from South Dakota to London Heathrow Airport.
How old do you have to be to fly from South Dakota to London Heathrow Airport?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from South Dakota to London Heathrow Airport.
What documentation or ID do you need to fly to London Heathrow Airport?
The necessary travel and health documents for your London Heathrow Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Best airlines flying from South Dakota to London Heathrow Airport

Compare and see reviews for airlines that fly from South Dakota to London Heathrow Airport with momondo

Airline	Rating	Free Cancellation	Price
United Airlines	PriceFrom $654	Free Cancellation	Rating 7.4 9,896 reviews		Search United Airlines flights
American Airlines	PriceFrom $658	Free Cancellation	Rating 7.1 11,779 reviews		Search American Airlines flights

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Luton

Hayes

Dover

Crawley

Croydon

Wembley

Stansted

Stratford-upon-Avon

Harrow

Slough

Watford

Cobham

Brentwood

Guildford

Ilford

Folkestone

Uxbridge

Why use momondo?

Why should I use momondo to find a flight deal from South Dakota to London?

Finding the right flight to London from South Dakota is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to London quick and easy, saving you time and money.

Can I find flights from South Dakota to London with flexible booking policies on momondo?

Flights from South Dakota to London with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from South Dakota to London?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to London from South Dakota.

I’m not ready to book a flight from South Dakota to London right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to London from South Dakota. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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Flights to London Gatwick Airportfrom $162

Flights to London Stansted Airportfrom $492

Flights to London City Airportfrom $168

Flights to London Luton Airportfrom $491

Flights to Glasgow Intl Airportfrom $145

Flights to Belfast Intl Airportfrom $330

Flights to London Southend Airportfrom $678

Flights to Belfast City Airportfrom $330

Cheap flights from South Dakota to London from $843

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from South Dakota to London departing on 12/1. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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KLM flights from South Dakota to London Heathrow Airport

Our best KLM deals on South Dakota to London Heathrow Airport flight tickets

American Airlines flights from South Dakota to London Heathrow Airport

Our best American Airlines deals on South Dakota to London Heathrow Airport flight tickets

momondo Fare Finder

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

See travel insights to London from

How to get the cheapest flight ticket from South Dakota to London Heathrow Airport

What is the cheapest month to fly to London Heathrow Airport?

What is the cheapest airline that flies from South Dakota to London Heathrow?

How long does it take to fly to London Heathrow Airport?

Cheap South Dakota to London Heathrow Airport flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from South Dakota to London Heathrow Airport

Fastest flight time

Direct flights

Frequently asked questions about flying from South Dakota to London Heathrow Airport

Best airlines flying from South Dakota to London Heathrow Airport

Compare and see reviews for airlines that fly from South Dakota to London Heathrow Airport with momondo

Traveling to a place near London?

Why use momondo?

An easier way to manage your London Heathrow Airport trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to London

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