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$880+ Cheap flights from South Dakota to London (LON)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/12. Fares are subject to change and may not be available on all flights or dates of travel.
FSD — LON
Jul 7 — Jul 141
Tue 7/7
Tue 7/14
1 adult, Economy
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Cheap 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 June 7, 2026.

This United Airlines deal was found by Cheapflights users on 6/7. 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.
Sat 9/126:41 pm
FSD
-
LHR
2 stops29h 49m
United Airlines
Tue 9/226:50 am
LHR
-
FSD
2 stops17h 16m
United Airlines
Deal found 6/7$880
This Delta deal was found by Cheapflights users on 6/3. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/2910:42 am
RAP
-
LHR
1 stop19h 23m
Delta
Wed 10/76:30 am
LHR
-
RAP
2 stops14h 22m
Delta
Deal found 6/3$897
This United Airlines deal was found by Cheapflights users on 6/3. 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.
Tue 9/110:26 am
RAP
-
LHR
1 stop18h 59m
United Airlines
Thu 9/246:55 am
LHR
-
RAP
2 stops20h 49m
United Airlines
Deal found 6/3$905
This Delta deal was found by Cheapflights users on 6/3. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/16:48 am
RAP
-
LHR
2 stops17h 27m
Delta
Thu 9/246:30 am
LHR
-
RAP
2 stops22h 49m
Delta
Deal found 6/3$909
This Delta deal was found by Cheapflights users on 6/3. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/276:48 am
RAP
-
LHR
1 stop23h 17m
Delta
Thu 10/16:30 am
LHR
-
RAP
2 stops22h 49m
Delta
Deal found 6/3$910
This United Airlines deal was found by Cheapflights users on 6/3. 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.
Tue 9/11:31 pm
RAP
-
LHR
1 stop15h 24m
United Airlines
Tue 9/297:30 am
LHR
-
RAP
2 stops21h 58m
United Airlines
Deal found 6/3$916
This Delta deal was found by Cheapflights users on 6/3. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/286:48 am
RAP
-
LHR
1 stop23h 17m
Delta
Mon 10/55:35 pm
LHR
-
RAP
2 stops29h 11m
Delta
Deal found 6/3$917
This Iberia deal was found by Cheapflights users on 6/3. 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/126:41 pm
FSD
-
LHR
1 stop11h 34m
Iberia
Tue 9/226:15 am
LHR
-
FSD
2 stops24h 05m
Iberia
Deal found 6/3$922
This United Airlines deal was found by Cheapflights users on 6/3. 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.
Tue 9/294:41 pm
RAP
-
LHR
1 stop12h 44m
United Airlines
Wed 10/711:25 am
LHR
-
RAP
1 stop14h 55m
United Airlines
Deal found 6/3$926
This United Airlines deal was found by Cheapflights users on 6/6. 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.
Fri 10/305:00 pm
FSD
-
LHR
1 stop11h 40m
United Airlines
Fri 11/66:50 am
LHR
-
FSD
2 stops20h 53m
United Airlines
Deal found 6/6$926
This Cheapflightsfares deal was found by Cheapflights users on 6/4. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/176:38 pm
FSD
-
LHR
2 stops17h 47m
Lufthansa
Wed 8/2610:50 am
LHR
-
FSD
2 stops18h 32m
Lufthansa
Deal found 6/4$928
This Delta deal was found by Cheapflights users on 6/6. 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.
Fri 10/308:15 am
FSD
-
LHR
2 stops17h 10m
Delta
Fri 11/66:30 am
LHR
-
FSD
2 stops19h 14m
Delta
Deal found 6/6$931

Find 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 June 7, 2026.

Most accurate provider

Ovago
3 stars

Most trusted provider

Ovago
3 stars

Round-trip from

$897
(Delta)

Popular in

April

Cheapest in

September

Average price

$1,150
Provider with most accurate pricing for Sioux Falls Joe Foss Field-London (LON) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Sioux Falls Joe Foss Field-London (LON) flights.
Search Deals
From South Dakota to London (LON)
Search Deals
Highest demand for flights based on searches. 6% potential increase in price ($65 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($24 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in June 2026
Search Deals

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 June 7, 2026.
Use the filters below to find and compare flights from South Dakota to London that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Sioux FallsLondon

FSD - LHR

FSDLHR

Sioux Falls Joe Foss Field

Sat 9/12

5:15 pm-9:40 am

1 stop34h 25m

London Heathrow

Tue 9/22

6:50 am-6:06 pm

2 stops17h 16m

$882

Rapid CityLondon

RAP - LHR

RAPLHR

Rapid City

Wed 9/2

8:55 am-9:40 am

1 stop17h 45m

London Heathrow

Tue 9/29

7:30 am-10:28 pm

2 stops21h 58m

$916

Rapid CityLondon

RAP - LHR

RAPLHR

Rapid City

Tue 9/1

10:26 am-9:40 am

1 stop16h 14m

London Heathrow

Fri 9/11

2:50 pm-10:28 pm

1 stop14h 38m

$933

Rapid CityLondon

RAP - LHR

RAPLHR

Rapid City

Wed 8/12

2:32 pm-1:05 pm

1 stop15h 33m

London Heathrow

Wed 8/26

6:30 am-3:49 pm

2 stops16h 19m

$937

Rapid CityLondon

RAP - LHR

RAPLHR

Rapid City

Wed 8/12

10:46 am-1:05 pm

1 stop19h 19m

London Heathrow

Wed 8/26

6:30 am-3:49 pm

2 stops16h 19m

$937

Rapid CityLondon

RAP - LHR

RAPLHR

Rapid City

Tue 9/1

8:55 am-6:30 am

2 stops14h 35m

London Heathrow

Fri 9/11

11:25 am-5:53 pm

1 stop13h 28m

$937

Sioux FallsLondon

FSD - LHR

FSDLHR

Sioux Falls Joe Foss Field

Mon 8/17

5:05 pm-12:25 pm

1 stop13h 20m

London Heathrow

Wed 8/26

6:50 am-11:22 pm

2 stops22h 32m

$937

Rapid CityLondon

RAP - LHR

RAPLHR

Rapid City

Wed 9/2

6:48 am-6:20 am

2 stops16h 32m

London Heathrow

Tue 9/29

8:20 am-10:19 pm

2 stops20h 59m

$938

Sioux FallsLondon

FSD - LGW

FSDLGW

Sioux Falls Joe Foss Field

Sat 9/12

1:20 pm-9:20 am

2 stops14h 00m

London Gatwick

Tue 9/22

10:35 am-10:51 pm

2 stops18h 16m

$938

Sioux FallsLondon

FSD - LGW

FSDLGW

Sioux Falls Joe Foss Field

Mon 8/17

1:26 pm-9:40 am

2 stops14h 14m

London Gatwick

Wed 8/26

10:25 am-10:51 pm

2 stops18h 26m

$949

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/6

Showing 1-10 of 32 resultsSorted by cheapest first
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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, July is the cheapest month in which you can book a flight from South Dakota to London (average of $511). Flying from South Dakota to London in June is currently the most expensive (average of $950). 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 to fly round-trip from South Dakota to London?

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.

  • How long is the flight from South Dakota to London?

    A quick flight from South Dakota to London can take about 15h 33m. United Airlines provides one of the quickest options available for as low as $937. Airlines will cover a distance of 4385 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • 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 Rapid City - London Heathrow 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, July is the cheapest month in which you can book a flight from South Dakota to London (average of $511). Flying from South Dakota to London in June is currently the most expensive (average of $950). 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 London?

Book flights to London if you plan to visit one of these locations
Ilford
Dorking
Hounslow
Winchester
Croydon
Gatwick
Southend-on-Sea
Wembley
Harrow
Eastleigh
Dartford
Dover
Orpington
Watford
Chipping Norton
Hayes
Kingston upon Thames
Eastbourne
Slough
Stansted

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.

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 June 7, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$654Average$995FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$658Average$987FlexibilityNo cancel feeOn-time71%

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