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$284+ 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 5/18. Fares are subject to change and may not be available on all flights or dates of travel.
FSD — LON
Apr 8 — Apr 151
Wed 4/8
Wed 4/15
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 March 9, 2026.

This United Airlines deal was found by Cheapflights users on 3/6. 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.
Sun 12/66:20 pm
FSD
-
LHR
2 stops40h 45m
United Airlines
Wed 12/910:25 am
LHR
-
FSD
1 stop17h 18m
United Airlines
Deal found 3/6$624
This Finnair deal was found by Cheapflights users on 3/5. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/1211:41 am
RAP
-
LHR
1 stop20h 24m
Multiple Airlines
Wed 8/2612:55 pm
LHR
-
RAP
1 stop15h 04m
Multiple Airlines
Deal found 3/5$705
This Cheapflightsfares deal was found by Cheapflights users on 3/7. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/266:37 pm
FSD
-
LHR
2 stops18h 03m
Lufthansa
Wed 9/29:00 am
LHR
-
FSD
2 stops18h 52m
Lufthansa
Deal found 3/7$706
This Finnair deal was found by Cheapflights users on 3/5. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/111:41 am
RAP
-
LHR
1 stop20h 24m
Multiple Airlines
Fri 9/114:10 pm
LHR
-
RAP
1 stop26h 43m
Multiple Airlines
Deal found 3/5$711
This United Airlines deal was found by Cheapflights users on 3/4. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/121:33 pm
RAP
-
LHR
1 stop11h 57m
United Airlines
Wed 8/267:30 am
LHR
-
RAP
2 stops15h 35m
United Airlines
Deal found 3/4$713
This United Airlines deal was found by Cheapflights users on 3/4. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/67:40 am
FSD
-
LHR
2 stops20h 35m
United Airlines
Fri 10/165:40 pm
LHR
-
FSD
2 stops33h 06m
United Airlines
Deal found 3/4$723
This United Airlines deal was found by Cheapflights users on 3/7. 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.
Wed 8/269:36 am
FSD
-
LHR
1 stop20h 44m
United Airlines
Wed 9/26:50 am
LHR
-
FSD
2 stops21h 02m
United Airlines
Deal found 3/7$725
This United Airlines deal was found by Cheapflights users on 3/6. 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.
Sun 10/1111:44 am
FSD
-
LHR
1 stop18h 36m
United Airlines
Wed 10/216:55 am
LHR
-
FSD
2 stops20h 48m
United Airlines
Deal found 3/6$726
This United Airlines deal was found by Cheapflights users on 3/6. 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.
Sun 10/119:14 am
FSD
-
LHR
1 stop21h 06m
United Airlines
Tue 10/279:00 am
LHR
-
FSD
2 stops17h 43m
United Airlines
Deal found 3/6$727
This United Airlines deal was found by Cheapflights users on 3/6. 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.
Tue 10/137:40 am
FSD
-
LHR
2 stops16h 50m
United Airlines
Wed 10/217:25 am
LHR
-
FSD
2 stops20h 18m
United Airlines
Deal found 3/6$729
This United Airlines deal was found by Cheapflights users on 3/6. 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.
Tue 10/137:40 am
FSD
-
LHR
2 stops16h 50m
United Airlines
Tue 10/279:00 am
LHR
-
FSD
2 stops17h 43m
United Airlines
Deal found 3/6$730
This United Airlines deal was found by Cheapflights users on 3/6. 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.
Sat 10/175:00 pm
FSD
-
LHR
1 stop34h 40m
United Airlines
Wed 10/216:55 am
LHR
-
FSD
2 stops20h 48m
United Airlines
Deal found 3/6$731

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 March 9, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$705
(Finnair)

One-way from

$284
(Delta)
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
One-way flight from South Dakota to London (LON)
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 March 9, 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

Rapid CityLondon

RAP - LHR

RAPLHR

Rapid City

Wed 8/12

11:41 am-3:05 pm

1 stop20h 24m

London Heathrow

Wed 8/26

12:55 pm-8:59 pm

1 stop15h 04m

$706

Rapid CityLondon

RAP - LHR

RAPLHR

Rapid City

Tue 9/1

11:41 am-3:05 pm

1 stop20h 24m

London Heathrow

Fri 9/11

4:10 pm-11:53 am

1 stop26h 43m

$712

Rapid CityLondon

RAP - LHR

RAPLHR

Rapid City

Wed 8/12

10:13 am-12:20 pm

1 stop19h 07m

London Heathrow

Wed 8/26

7:30 am-4:05 pm

2 stops15h 35m

$737

Rapid CityLondon

RAP - LHR

RAPLHR

Rapid City

Tue 9/1

7:00 am-6:30 am

2 stops16h 30m

London Heathrow

Fri 9/11

2:50 pm-8:32 pm

1 stop12h 42m

$758

Sioux FallsLondon

FSD - LHR

FSDLHR

Sioux Falls Joe Foss Field

Wed 4/22

6:53 pm-11:55 am

1 stop11h 02m

London Heathrow

Wed 4/29

6:50 am-9:54 pm

2 stops21h 04m

$785

Rapid CityLondon

RAP - LHR

RAPLHR

Rapid City

Tue 4/14

9:20 am-9:00 am

1 stop16h 40m

London Heathrow

Thu 5/14

11:05 am-9:46 pm

1 stop17h 41m

$814

Rapid CityLondon

RAP - LHR

RAPLHR

Rapid City

Mon 4/27

10:58 am-1:05 pm

1 stop19h 07m

London Heathrow

Mon 5/4

8:40 am-10:20 pm

2 stops20h 40m

$836

Sioux FallsLondon

FSD - LGW

FSDLGW

Sioux Falls Joe Foss Field

Thu 5/7

12:29 pm-10:50 am

2 stops16h 21m

London Gatwick

Mon 5/11

8:40 pm-11:06 pm

2 stops32h 26m

$839

Sioux FallsLondon

FSD - LGW

FSDLGW

Sioux Falls Joe Foss Field

Fri 5/1

1:44 pm-9:25 am

2 stops13h 41m

London Gatwick

Thu 5/7

10:25 am-11:11 pm

2 stops18h 46m

$847

Sioux FallsLondon

FSD - LGW

FSDLGW

Sioux Falls Joe Foss Field

Fri 5/1

1:44 pm-9:25 am

2 stops13h 41m

London Gatwick

Fri 5/8

10:25 am-11:11 pm

2 stops18h 46m

$847

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/4

Showing 1-10 of 49 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, March is the cheapest month in which you can book a flight from South Dakota to London (average of $602). Flying from South Dakota to London in June is currently the most expensive (average of $1,226). 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.

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 11h 57m. United Airlines provides one of the quickest options available for as low as $713. 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 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, March is the cheapest month in which you can book a flight from South Dakota to London (average of $602). Flying from South Dakota to London in June is currently the most expensive (average of $1,226). 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
Hounslow
Croydon
Gatwick
Southend-on-Sea
Harrow
Eastleigh
Dartford
Dover
Winchester
Orpington
Watford
Borehamwood
Aylesbury
Chipping Norton
Hayes
Kingston upon Thames
Eastbourne
Sutton
Slough

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 March 9, 2026.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$658Average$851FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$695Average$918FlexibilityNo cancel feeOn-time69%

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