HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
London

$399+ Cheap flights from South Dakota to London (LON)

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 10/1. Fares are subject to change and may not be available on all flights or dates of travel.
FSD — LON
jul. 8 — jul. 151
mar. 7/8
mar. 7/15
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from South Dakota to London with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from South Dakota to London

Keep the following information in mind while searching for South Dakota to London flight deals. Data was last updated julio 3, 2025.

Round-trip from

$675
(Delta)

One-way from

$399
(United Airlines)

Popular in

January

Cheapest in

March

Average price

$990
From South Dakota to London (LON)
Search Deals
One-way flight from South Dakota to London (LON)
Search Deals
Highest demand for flights based on searches. 19% potential increase in price ($266 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 8% potential price decrease ($85 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2025
Search Deals

Find flight deals from South Dakota to London

Cheapest flights from South Dakota to London
Explore the most affordable flight options available from South Dakota to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on julio 3, 2025.

This Delta deal was found by Cheapflights users on 7/2. 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.
dom. 8/172:30 pmFSD - LHR
1 stop16h 40mDelta
dom. 8/2411:30 amLHR - FSD
2 stops17h 36mDelta
Deal found 7/2$675
This KLM deal was found by Cheapflights users on 7/2. 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.
dom. 8/175:27 amFSD - LHR
1 stop19h 18mKLM
dom. 8/249:20 amLHR - FSD
1 stop19h 46mKLM
Deal found 7/2$683
This United Airlines deal was found by Cheapflights users on 7/2. 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.
lun. 10/63:12 pmFSD - LHR
1 stop11h 08mUnited Airlines
mar. 10/142:05 pmLHR - FSD
2 stops26h 33mUnited Airlines
Deal found 7/2$730
This United Airlines deal was found by Cheapflights users on 7/3. 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.
sáb. 10/115:50 pmRAP - LHR
2 stops29h 40mUnited Airlines
mar. 10/219:30 amLHR - RAP
2 stops31h 43mUnited Airlines
Deal found 7/3$736
This British Airways deal was found by Cheapflights users on 7/1. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 10/75:42 pmFSD - LHR
1 stop11h 23mMultiple Airlines
vie. 10/171:10 pmLHR - FSD
1 stop15h 32mMultiple Airlines
Deal found 7/1$753
This KLM deal was found by Cheapflights users on 7/2. 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.
sáb. 10/1110:40 amRAP - LHR
1 stop19h 30mKLM
mar. 10/2112:25 pmLHR - RAP
1 stop16h 45mKLM
Deal found 7/2$803
This Delta deal was found by Cheapflights users on 7/2. 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.
sáb. 8/164:25 pmRAP - LHR
1 stop13h 45mDelta
sáb. 8/236:15 amLHR - RAP
2 stops23h 17mDelta
Deal found 7/2$845
This Expedia deal was found by Cheapflights users on 7/1. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 12/111:59 pmFSD - LCY
2 stops20h 41mLufthansa
jue. 12/189:40 amLCY - FSD
2 stops17h 06mLufthansa
Deal found 7/1$953
This Delta deal was found by Cheapflights users on 7/2. 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.
dom. 7/2011:12 amFSD - LGW
2 stops16h 48mDelta
dom. 7/2712:00 pmLGW - FSD
2 stops17h 44mDelta
Deal found 7/2$1,068
This United Airlines deal was found by Cheapflights users on 7/1. 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.
vie. 8/159:15 amFSD - LCY
3 stops20h 25mMultiple Airlines
vie. 8/227:30 pmLCY - FSD
2 stops27h 59mMultiple Airlines
Deal found 7/1$1,187
This Mytrip deal was found by Cheapflights users on 7/1. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 12/1112:36 pmFSD - LGW
3 stops39h 24mMultiple Airlines
jue. 12/187:00 amLGW - FSD
3 stops34h 31mMultiple Airlines
Deal found 7/1$1,307
This KLM deal was found by Cheapflights users on 7/3. 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.
sáb. 10/114:35 pmRAP - LCY
2 stops13h 40mKLM
mar. 10/219:20 amLCY - RAP
2 stops19h 50mKLM
Deal found 7/3$1,405

Cheapflights Fare Finder

Customize your flight search to find flights from South Dakota to London 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 julio 3, 2025.
Use the filters below to find and compare flights from South Dakota to London that are best for you.

Fly from

South Dakota

Fly to

London

Route

Depart

Return

Price

Sioux FallsLondon

FSD - LHR

FSDLHR

Sioux Falls Joe Foss Field

dom. 8/17

2:30 pm-1:10 pm

1 stop16h 40m

London Heathrow

dom. 8/24

11:30 am-11:06 pm

2 stops17h 36m

$675

Sioux FallsLondon

FSD - LHR

FSDLHR

Sioux Falls Joe Foss Field

dom. 8/17

5:27 am-6:45 am

1 stop19h 18m

London Heathrow

dom. 8/24

9:20 am-11:06 pm

1 stop19h 46m

$683

Rapid CityLondon

RAP - LHR

RAPLHR

Rapid City

sáb. 10/11

5:50 pm-6:30 am

2 stops29h 40m

London Heathrow

mar. 10/21

9:30 am-10:13 am

2 stops31h 43m

$736

Rapid CityLondon

RAP - LHR

RAPLHR

Rapid City

sáb. 10/11

10:40 am-1:10 pm

1 stop19h 30m

London Heathrow

mar. 10/21

12:25 pm-10:10 pm

1 stop16h 45m

$803

Rapid CityLondon

RAP - LHR

RAPLHR

Rapid City

sáb. 8/16

4:25 pm-1:10 pm

1 stop13h 45m

London Heathrow

sáb. 8/23

6:15 am-10:32 pm

2 stops23h 17m

$845

Sioux FallsLondon

FSD - LHR

FSDLHR

Sioux Falls Joe Foss Field

vie. 8/15

11:55 am-9:40 am

1 stop15h 45m

London Heathrow

vie. 8/22

7:30 am-8:29 pm

2 stops18h 59m

$881

Sioux FallsLondon

FSD - LCY

FSDLCY

Sioux Falls Joe Foss Field

vie. 8/15

6:26 pm-5:15 pm

2 stops40h 49m

London City

vie. 8/22

7:10 pm-5:27 pm

2 stops52h 17m

$984

Sioux FallsLondon

FSD - LGW

FSDLGW

Sioux Falls Joe Foss Field

dom. 7/20

11:12 am-10:00 am

2 stops16h 48m

London Gatwick

dom. 7/27

12:00 pm-11:44 pm

2 stops17h 44m

$1,068

Sioux FallsLondon

FSD - LCY

FSDLCY

Sioux Falls Joe Foss Field

vie. 8/15

9:15 am-11:40 am

3 stops20h 25m

London City

vie. 8/22

7:30 pm-5:29 pm

2 stops27h 59m

$1,187

Rapid CityLondon

RAP - LCY

RAPLCY

Rapid City

sáb. 10/11

4:35 pm-1:15 pm

2 stops13h 40m

London City

mar. 10/21

9:20 am-10:10 pm

2 stops19h 50m

$1,405

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/3

Showing 1-10 of 18 results
1
2

Best time to book a flight from South Dakota to London

Have a flexible travel schedule? Discover the best time to fly to London 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

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

Currently, November is the cheapest month in which you can book a flight from South Dakota to London (average of $661). Flying from South Dakota to London in June is currently the most expensive (average of $1,098). 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 LON?

Find hourly flight availability from South Dakota to London. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated julio 3, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from South Dakota to London as you normally would.

How much does it cost to fly round-trip from South Dakota to London?

Reviews of airlines servicing London

Get insights into the airlines that provide service to London. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to London. Reviews last updated julio 3, 2025.
See what other customers who have flown with Delta, KLM, and United Airlines from South Dakota to London have to say. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,982 reviews

Boarding

8.2

Crew

8.5

Overall

8.0

Entertainment

7.9

Comfort

7.9

Food

7.3

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
7,982 reviews
Delta
8.0
Very good
7,982 reviews

Boarding

8.2

Crew

8.5

Overall

8.0

Entertainment

7.9

Comfort

7.9

Food

7.3

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
1,367 reviews
Delta
8.0
Very good
7,982 reviews

Boarding

8.2

Crew

8.5

Overall

8.0

Entertainment

7.9

Comfort

7.9

Food

7.3

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
8,861 reviews
Delta
8.0
Very good
7,982 reviews

Boarding

8.2

Crew

8.5

Overall

8.0

Entertainment

7.9

Comfort

7.9

Food

7.3

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!
Lufthansa
6.8
Okay
7,207 reviews
Delta
8.0
Very good
7,982 reviews

Boarding

8.2

Crew

8.5

Overall

8.0

Entertainment

7.9

Comfort

7.9

Food

7.3

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

Find useful and relevant information for your journey from South Dakota to London. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What are the most popular routes from South Dakota to London?

    Most travelers choose Sioux Falls Joe Foss Field - London Heathrow, Sioux Falls Joe Foss Field - London City or Sioux Falls Joe Foss Field - London Gatwick when deciding on the best route from South Dakota to London.

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

    Yes. In addition to deals on South Dakota to London flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from South Dakota to London?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from South Dakota to London.

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

    Yes. Cheapflights offers flight deals from South Dakota to London 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?

    Currently, November is the cheapest month in which you can book a flight from South Dakota to London (average of $661). Flying from South Dakota to London in June is currently the most expensive (average of $1,098). 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 South Dakota?

Book flights to South Dakota if you plan to visit one of these locations
Hounslow
Hayes
Thornton Heath
Canterbury
Harrow
Dover
Gatwick
Orpington
Watford
Croydon
Folkestone
Borehamwood
Aylesbury
Chelmsford
Brentwood
Chichester
Arundel
Milton Keynes
Bishop's Stortford
Dartford

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 London

See prices for flight routes from nearby airports that may be better suited for you.
John F Kennedy Intl to Heathrow flights
Newark to Heathrow flights
John F Kennedy Intl to Gatwick flights
Los Angeles to Heathrow flights
Dulles Intl to Heathrow flights
John F Kennedy Intl to London City flights
LaGuardia to Heathrow flights
Boston to Heathrow flights
Newark to Gatwick flights
O'Hare Intl to Heathrow flights
San Francisco to Heathrow flights
Seattle to Heathrow flights
Baltimore to Heathrow flights
Dallas/Fort Worth to Heathrow flights
LaGuardia to Gatwick flights
John F Kennedy Intl to Stansted flights
Newark to London City flights
Boston to Gatwick flights
John F Kennedy Intl to Luton flights
Miami to Heathrow flights
Dulles Intl to Gatwick flights
Atlanta to Heathrow flights
Reagan-National to Heathrow flights
Dulles Intl to London City flights
Hobby to Heathrow flights
Denver to Heathrow flights
Orlando to Heathrow flights
Philadelphia to Heathrow flights
Baltimore to Gatwick flights
Boston to London City flights
Los Angeles to London City flights
Reagan-National to Gatwick flights
O'Hare Intl to Gatwick flights
O'Hare Intl to London City flights
Los Angeles to Gatwick flights
Newark to Stansted flights
San Francisco to Gatwick flights
Seattle to Gatwick flights
George Bush Intcntl to Heathrow flights
San Francisco to London City flights
Dallas/Fort Worth to Gatwick flights
John F Kennedy Intl to Edinburgh flights
Minneapolis to Heathrow flights
Newark to Luton flights
Newark to Edinburgh flights
Seattle to London City flights
Boston to Edinburgh flights
Orlando to Gatwick flights
Midway to Heathrow flights
Sky Harbor Intl to Heathrow flights

Top 2 airlines flying from South Dakota to London

Discover the top 2 airlines that operate flights from South Dakota to London. 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 julio 3, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$691Average$1,109FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$724Average$1,024FlexibilityNo cancel feeOn-time71%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.