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

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

What airlines fly to London?

American Airlines, United Airlines and Delta are the top three most popular airlines that fly to London 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. Keep in mind that there are 3 different airlines that fly to London on a routine basis, so you have a few additional options to choose from.

How long does it take to fly to London?

If you’re flying from a popular airport in South Dakota, such as Sioux Falls or Rapid City, and flying into London, then you can expect flight times to average 11h 08m and 12h 45m, respectively.

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

Prices for flights from South Dakota to London are updated daily.

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

There are 3 operators available for flights from South Dakota to London as of September 2025.

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

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.

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

The travel and health documents required for your trip to London can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at London. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

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

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Find the cheapest flights from South Dakota to London

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

Our best KLM deals on South Dakota to London 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

Our best United Airlines deals on South Dakota to London 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

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

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 day to depart on your flight to London?

The cheapest day to depart from South Dakota to London is on a Tuesday. Travelers who choose to depart for London on a Tuesday will often find tickets for as low as $789. If your travel schedule is flexible, try to avoid departing on a Saturday because tickets tend to average around $1,512. These prices are subject to change though, so be sure to set up a Price Alert for flights to London.

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

Flying to London from South Dakota at noon is the least expensive time of day to depart. momondo users have found prices as low as $941 when looking at flights departing at noon. Flights to London are more costly in the morning, with an average ticket price of $1,148. Departure times in the morning fall within the peak daily travel times, which is why tickets can be more expensive.

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

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

Cheap South Dakota to London flight deals and tips

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

Direct flights	None

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

Search flight deals

When did momondo last update prices for flights from South Dakota to London?
Prices for flights from South Dakota to London are updated daily.
How many operators does momondo search for flights from South Dakota to London?
There are 3 operators available for flights from South Dakota to London as of September 2025.
How old do you have to be to fly from South Dakota to London?
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.
What documentation or ID do you need to fly to London?
The travel and health documents required for your trip to London can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at London. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Best airlines flying from South Dakota to London

Compare and see reviews for airlines that fly from South Dakota to London 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

Gatwick

Hounslow

Dover

Luton

Slough

Milton Keynes

Hayes

Guildford

Dartford

Crawley

Stansted

Chelmsford

Brentwood

Ilford

Folkestone

Colchester

Watford

Wembley

Richmond

Croydon

Why use momondo?

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

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to London from South Dakota.

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

Yes. momondo allows you to filter the results for South Dakota to London flights to just show those with flexible booking policies.

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

momondo helps you find the best flight between South Dakota and London by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

Yes. momondo can track prices for South Dakota to London flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

An easier way to manage your London trip

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Find better results for your trip to the United Kingdom

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

Our best KLM deals on South Dakota to London flight tickets

United Airlines flights from South Dakota to London

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

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

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

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 day to depart on your flight to London?

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

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

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

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

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

What airlines fly to London?

How long does it take to fly to London?

If you’re flying from a popular airport in South Dakota, such as Sioux Falls or Rapid City, and flying into London, then you can expect flight times to average 11h 08m and 12h 45m, respectively.

Cheap South Dakota to London flight deals and tips

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

Direct flights

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

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

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

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

Best airlines flying from South Dakota to London

Compare and see reviews for airlines that fly from South Dakota to London 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 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 the United Kingdom

Fly into one of these airports located in London

Airports listed have a maximum distance of 35.6 mi from London