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

United Airlines is the most popular carrier operating from South Dakota to London Heathrow

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

On average, it takes 11h 08m 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 12h 45m.

What airlines fly to London Heathrow Airport?

American Airlines, United Airlines and Delta are the top three most popular airlines that fly to London Heathrow Airport from South Dakota according to our data. American Airlines is the first choice among our users, with 53% of people opting to fly with this airline when traveling to London Heathrow Airport. Keep in mind that there are 3 different airlines that fly to London Heathrow Airport on a routine basis, so you have a few additional options to choose from.

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

As of September 2025, there are 3 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.

$468 Cheap Flights from South Dakota to London Heathrow Airport in 2025/26

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Round-trip

One-way

Cheap round-trip flights

5:30 am - 7:50 amFSD-LHR

20h 20m1 stop

8:40 am - 7:35 pmLHR-FSD

16h 55m2 stops

$716KLM

Find Deal

Tue, Nov 4 - Tue, Nov 11

5:50 pm - 12:20 pmRAP-LHR

11h 30m1 stop

9:30 am - 10:13 amLHR-RAP

31h 43m2 stops

$729United Airlines

Find Deal

Sun, Oct 12 - Thu, Oct 23

5:30 am - 9:00 amFSD-LHR

21h 30m1 stop

9:00 am - 11:09 pmLHR-FSD

20h 09m2 stops

$729Delta

Find Deal

Wed, Nov 5 - Wed, Nov 12

6:05 am - 8:05 amRAP-LHR

19h 00m2 stops

6:20 am - 10:39 pmLHR-RAP

23h 19m2 stops

$733Delta

Find Deal

Tue, Nov 4 - Thu, Nov 13

5:18 am - 6:50 amRAP-LHR

18h 32m1 stop

7:50 am - 9:16 pmLHR-RAP

20h 26m2 stops

$769American Airlines

Find Deal

Fri, Nov 7 - Fri, Nov 14

5:18 am - 6:20 amRAP-LHR

18h 02m2 stops

9:50 am - 9:16 pmLHR-RAP

18h 26m2 stops

$774American Airlines

Find Deal

Fri, Nov 7 - Fri, Nov 14

10:33 am - 7:05 amRAP-LHR

13h 32m1 stop

6:20 am - 3:45 pmLHR-RAP

16h 25m2 stops

$779Multiple Airlines

Find Deal

Thu, Nov 6 - Fri, Nov 14

10:33 am - 8:45 amRAP-LHR

15h 12m2 stops

6:20 am - 3:45 pmLHR-RAP

16h 25m2 stops

$783Air France

Find Deal

Thu, Nov 6 - Fri, Nov 14

6:04 pm - 11:35 amFSD-LHR

11h 31m1 stop

11:00 am - 10:11 pmLHR-FSD

17h 11m1 stop

$802Multiple Airlines

Find Deal

Thu, Jan 22 - Thu, Jan 29

10:33 am - 8:45 amRAP-LHR

15h 12m2 stops

6:20 am - 3:45 pmLHR-RAP

16h 25m2 stops

$818Air France

Find Deal

Fri, Nov 7 - Thu, Nov 13

KLM flights from South Dakota to London Heathrow Airport

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

KLM

Nov 4

FSD5:30 amSioux Falls Joe Foss Field

20h 20m

1 stop

LHR7:50 amLondon Heathrow

Nov 11

LHR8:40 amLondon Heathrow

16h 55m

2 stops

FSD7:35 pmSioux Falls Joe Foss Field

$716

Find similar

KLM

Nov 4

FSD10:56 amSioux Falls Joe Foss Field

14h 09m

1 stop

LHR7:05 amLondon Heathrow

Nov 11

LHR8:55 amLondon Heathrow

20h 14m

1 stop

FSD11:09 pmSioux Falls Joe Foss Field

$738

Find similar

KLM

Nov 5

FSD10:56 amSioux Falls Joe Foss Field

14h 09m

1 stop

LHR7:05 amLondon Heathrow

Nov 12

LHR8:55 amLondon Heathrow

20h 16m

1 stop

FSD11:11 pmSioux Falls Joe Foss Field

$752

Find similar

United Airlines flights from South Dakota to London Heathrow Airport

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

United Airlines

Oct 12

RAP5:50 pmRapid City

11h 30m

1 stop

LHR12:20 pmLondon Heathrow

Oct 23

LHR9:30 amLondon Heathrow

31h 43m

2 stops

RAP10:13 amRapid City

$729

Find similar

United Airlines

Oct 11

RAP1:44 pmRapid City

33h 36m

1 stop

LHR6:20 amLondon Heathrow

Oct 21

LHR9:30 amLondon Heathrow

31h 43m

2 stops

RAP10:13 amRapid City

$734

Find similar

United Airlines

Oct 15

RAP4:35 pmRapid City

12h 45m

1 stop

LHR12:20 pmLondon Heathrow

Nov 19

LHR6:00 pmLondon Heathrow

31h 43m

2 stops

RAP6:43 pmRapid City

$735

Find similar

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

Sioux FallsLondon

FSD - LHR

FSDLHR

Sioux Falls Joe Foss Field

Tue 11/4

5:30 am-7:50 am

1 stop20h 20m

London Heathrow

Tue 11/11

8:40 am-7:35 pm

2 stops16h 55m

$716

Rapid CityLondon

RAP - LHR

RAPLHR

Rapid City

Sun 10/12

5:50 pm-12:20 pm

1 stop11h 30m

London Heathrow

Thu 10/23

9:30 am-10:13 am

2 stops31h 43m

$729

Sioux FallsLondon

FSD - LHR

FSDLHR

Sioux Falls Joe Foss Field

Wed 11/5

5:30 am-9:00 am

1 stop21h 30m

London Heathrow

Wed 11/12

9:00 am-11:09 pm

2 stops20h 09m

$729

Rapid CityLondon

RAP - LHR

RAPLHR

Rapid City

Tue 11/4

6:05 am-8:05 am

2 stops19h 00m

London Heathrow

Thu 11/13

6:20 am-10:39 pm

2 stops23h 19m

$733

Rapid CityLondon

RAP - LHR

RAPLHR

Rapid City

Fri 11/7

5:18 am-6:50 am

1 stop18h 32m

London Heathrow

Fri 11/14

7:50 am-9:16 pm

2 stops20h 26m

$769

Rapid CityLondon

RAP - LHR

RAPLHR

Rapid City

Fri 11/7

5:18 am-6:20 am

2 stops18h 02m

London Heathrow

Fri 11/14

9:50 am-9:16 pm

2 stops18h 26m

$774

Rapid CityLondon

RAP - LHR

RAPLHR

Rapid City

Thu 11/6

10:33 am-7:05 am

1 stop13h 32m

London Heathrow

Fri 11/14

6:20 am-3:45 pm

2 stops16h 25m

$779

Rapid CityLondon

RAP - LHR

RAPLHR

Rapid City

Thu 11/6

10:33 am-8:45 am

2 stops15h 12m

London Heathrow

Fri 11/14

6:20 am-3:45 pm

2 stops16h 25m

$783

Sioux FallsLondon

FSD - LHR

FSDLHR

Sioux Falls Joe Foss Field

Thu 1/22

6:04 pm-11:35 am

1 stop11h 31m

London Heathrow

Thu 1/29

11:00 am-10:11 pm

1 stop17h 11m

$802

Rapid CityLondon

RAP - LHR

RAPLHR

Rapid City

Fri 11/7

10:33 am-8:45 am

2 stops15h 12m

London Heathrow

Thu 11/13

6:20 am-3:45 pm

2 stops16h 25m

$818

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 14 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 August is, on average, the cheapest month to fly to London Heathrow Airport from South Dakota, with most prices found around $681. If you’re not able to fly to London Heathrow Airport in August, then September is your next best option. Flight prices from South Dakota to London Heathrow Airport during September average around $773.

What is the cheapest day to depart on your flight to London Heathrow Airport?

Our data shows that Wednesday is the least expensive day to fly to London Heathrow Airport. Tickets to fly out on this day can be as low as $740. The most expensive day to fly to London Heathrow Airport is Sunday, with ticket prices averaging around $1,261.

What is the cheapest time of day to depart on your flight to London Heathrow Airport?

According to our data, the cheapest time of day to fly to London Heathrow Airport is in the afternoon. momondo users have found flights departing from South Dakota to London Heathrow Airport in the afternoon for as low as $836. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights in the morning are often more expensive with an average ticket price of $1,094.

Can stopping save me money on South Dakota to London Heathrow Airport flights?

You could potentially save up to 17% on your flight if you consider stops on a South Dakota to London Heathrow Airport flight.

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

Direct flights	None

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

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 September 2025, there are 3 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
Delta	PriceFrom $679	Free Cancellation	Rating 7.9 7,971 reviews	Search Delta flights
United Airlines	PriceFrom $748	Free Cancellation	Rating 7.4 8,922 reviews	Search United Airlines flights
American Airlines	PriceFrom $750	Free Cancellation	Rating 7.2 10,000 reviews	Search American Airlines flights

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Milton Keynes

Slough

Guildford

Hayes

Dartford

Stansted

Crawley

Chelmsford

Brentwood

Salisbury

Ilford

Folkestone

Colchester

Romford

Swindon

Stratford-upon-Avon

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.

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.

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Popular cities in the United Kingdom

Flights to London Gatwick Airportfrom $328

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Flights to London Luton Airportfrom $404

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Flights to London Southend Airportfrom $422

Flights to Belfast City Airportfrom $460

South Dakota flight routes

Flights from Sioux Falls Joe Foss Field to Nashville Intl

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Flights from Sioux Falls Joe Foss Field to Denver Intl

Flights from Sioux Falls Joe Foss Field to Las Vegas Harry Reid Intl

Cheap flights from South Dakota to London from $468

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from South Dakota to London departing on 10/18. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Big names and deals

Big names and deals

Filter for what you want

Filter for what you want

Trusted and free

Trusted and free

Price Alerts

Price Alerts

Find the cheapest flights from South Dakota to London

Cheap round-trip flights

Cheap one-way flights

KLM flights from South Dakota to London Heathrow Airport

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

United Airlines flights from South Dakota to London Heathrow Airport

Our best United 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

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

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

What is the cheapest day to depart on your flight to London Heathrow Airport?

Our data shows that Wednesday is the least expensive day to fly to London Heathrow Airport. Tickets to fly out on this day can be as low as $740. The most expensive day to fly to London Heathrow Airport is Sunday, with ticket prices averaging around $1,261.

What is the cheapest time of day to depart on your flight to London Heathrow Airport?

Can stopping save me money on South Dakota to London Heathrow Airport flights?

You could potentially save up to 17% on your flight if you consider stops on a South Dakota to London Heathrow Airport flight.

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

United Airlines is the most popular carrier operating from South Dakota to London Heathrow

What airlines fly to London Heathrow Airport?

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

Direct flights

When did momondo last update prices for flights from South Dakota to London Heathrow Airport?

How many operators does momondo search 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?

What documentation or ID do you need to fly 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?

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

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

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

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

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

Popular cities in the United Kingdom

Popular flights according to clicks in the last 7 days on momondo