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Cheap flights from Sioux Falls to London from £286

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 1/10. Fares are subject to change and may not be available on all flights or dates of travel.
FSD — LON
14 May — 21 May1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Sioux Falls to London

Enter your travel dates to find the best prices.

Cheapest flights from Sioux Falls to London
Explore the most affordable flight options available from Sioux Falls to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 14 April 2026.

Sun 1/1107:40
FSD
-
LHR
1 stop16h 15m
United Airlines
Thu 5/1106:50
LHR
-
FSD
2 stops16h 44m
United Airlines
Deal found 9/4£650
Sat 12/918:00
FSD
-
LHR
1 stop31h 40m
Iberia
Tue 22/907:50
LHR
-
FSD
2 stops22h 01m
Iberia
Deal found 13/4£652
Wed 16/909:36
FSD
-
LHR
2 stops17h 59m
United Airlines
Wed 23/906:50
LHR
-
FSD
2 stops21h 02m
United Airlines
Deal found 13/4£657
Sat 12/917:05
FSD
-
LHR
1 stop34h 35m
United Airlines
Tue 22/914:05
LHR
-
FSD
2 stops32h 18m
United Airlines
Deal found 13/4£662
Sun 1/1113:43
FSD
-
LHR
1 stop15h 52m
Multiple Airlines
Thu 5/1111:00
LHR
-
FSD
1 stop18h 59m
Multiple Airlines
Deal found 9/4£671
Wed 16/917:54
FSD
-
LHR
1 stop14h 31m
American Airlines
Wed 23/908:55
LHR
-
FSD
1 stop14h 27m
American Airlines
Deal found 13/4£673
Sun 13/918:00
FSD
-
LHR
1 stop10h 50m
Iberia
Sat 19/906:15
LHR
-
FSD
2 stops23h 36m
Iberia
Deal found 13/4£686
Thu 3/1211:20
FSD
-
LHR
1 stop12h 35m
United Airlines
Tue 8/1211:10
LHR
-
FSD
2 stops16h 33m
United Airlines
Deal found 9/4£688
Sun 6/911:25
FSD
-
LHR
1 stop19h 10m
United Airlines
Sat 12/907:25
LHR
-
FSD
2 stops22h 12m
United Airlines
Deal found 13/4£689
Sat 12/913:19
FSD
-
LCY
2 stops22h 36m
Lufthansa
Tue 22/909:15
LCY
-
FSD
2 stops20h 22m
Lufthansa
Deal found 13/4£775
Wed 16/918:37
FSD
-
LCY
2 stops17h 18m
Lufthansa
Wed 23/909:15
LCY
-
FSD
2 stops20h 22m
Lufthansa
Deal found 13/4£790
Sat 9/516:17
FSD
-
LGW
2 stops17h 43m
Delta
Sun 17/510:25
LGW
-
FSD
2 stops18h 46m
Delta
Deal found 10/4£831

Find flight deals from Sioux Falls to London

Discover tips and strategies to find the most affordable flight options for your journey from Sioux Falls (FSD) to London (LON). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 14 April 2026.

Round-trip from

£652

One-way from

£286
Iberia
  • Iberia
  • 12/9-22/9
  • 3 total stops
  • 53h 41m total
  • Sioux Falls to London
Search Deals
United Airlines
  • United Airlines
  • 1/10
  • 1 total stop
  • 15h 56m total
  • Sioux Falls to London
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Sioux Falls 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 858,174 searches. Data last updated 14 April 2026.
Use the filters below to find and compare flights from Sioux Falls to London that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

Sioux FallsLondon

FSD - LHR

FSDLHR

Sioux Falls Joe Foss Field

Sat 12/9

17:05-09:40

1 stop34h 35m

London Heathrow

Tue 22/9

14:05-16:23

2 stops32h 18m

£662

Sioux FallsLondon

FSD - LHR

FSDLHR

Sioux Falls Joe Foss Field

Tue 12/5

09:00-06:55

2 stops15h 55m

London Heathrow

Sun 17/5

10:25-21:52

2 stops17h 27m

£758

Sioux FallsLondon

FSD - LHR

FSDLHR

Sioux Falls Joe Foss Field

Thu 14/5

11:25-09:40

1 stop16h 15m

London Heathrow

Thu 28/5

06:50-18:00

2 stops17h 10m

£778

Sioux FallsLondon

FSD - LGW

FSDLGW

Sioux Falls Joe Foss Field

Sat 9/5

16:17-16:00

2 stops17h 43m

London Gatwick

Sun 17/5

10:25-23:11

2 stops18h 46m

£831

Sioux FallsLondon

FSD - LHR

FSDLHR

Sioux Falls Joe Foss Field

Wed 20/5

06:00-11:50

2 stops23h 50m

London Heathrow

Wed 3/6

06:50-21:38

2 stops20h 48m

£853

Sioux FallsLondon

FSD - LGW

FSDLGW

Sioux Falls Joe Foss Field

Fri 1/5

13:44-09:25

2 stops13h 41m

London Gatwick

Thu 7/5

10:25-23:11

2 stops18h 46m

£871

Sioux FallsLondon

FSD - LGW

FSDLGW

Sioux Falls Joe Foss Field

Fri 1/5

13:44-09:25

2 stops13h 41m

London Gatwick

Fri 8/5

10:25-23:11

2 stops18h 46m

£871

Sioux FallsLondon

FSD - LCY

FSDLCY

Sioux Falls Joe Foss Field

Fri 1/5

13:44-07:55

2 stops12h 11m

London City

Thu 7/5

09:20-19:27

2 stops16h 07m

£884

Sioux FallsLondon

FSD - LHR

FSDLHR

Sioux Falls Joe Foss Field

Wed 27/5

11:16-06:45

1 stop13h 29m

London Heathrow

Wed 3/6

06:50-18:00

2 stops17h 10m

£884
Fastest return journey

Sioux FallsLondon

FSD - LCY

FSDLCY

Sioux Falls Joe Foss Field

Fri 1/5

13:44-07:55

2 stops12h 11m

London City

Fri 8/5

10:00-19:27

2 stops15h 27m

£885

Flights are sorted by cheapest return flights first.

Deals found on 11/4

Showing 1-10 of 30 resultsSorted by cheapest first
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Best time to book a flight from Sioux Falls to London

Have a flexible travel schedule? Discover the best time to fly to London from Sioux Falls with our price prediction graph.
Estimated return 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 Sioux Falls to London

What is the cheapest month to book a flight from Sioux Falls to London?

Currently, March is the cheapest month in which you can book a flight from Sioux Falls to London (average of £448). Flying from Sioux Falls to London in June is currently the most expensive (average of £910). 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’s the top stopover airport for flights from Sioux Falls to London?

Share of one-stop return flights from Sioux Falls to London chosen by Cheapflights users in the past 12 months, using the same stopover each way.

Minneapolis (MSP) – chosen by Cheapflights users on 67% of one-stop itineraries from Sioux Falls to London on Cheapflights.

What’s the cheapest stopover airport for flights from Sioux Falls to London?

Average return fare for one-stop flights from Sioux Falls to London, chosen by Cheapflights users in the past 12 months, with the same stopover each way.

Chicago (ORD) is the most affordable one-stop option, with an average return flight price of £703.

What’s the fastest stopover option from Sioux Falls to London?

Shortest average travel time for one-stop one-way flights from Sioux Falls to London, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by stopover airport.

Flights via Chicago (ORD) have the shortest average one-way travel time for one-stop routes: 10h 36m.

Which airport typically offers the quickest stopover for flights from Sioux Falls to London?

Average stopover duration for one-stop one-way flights from Sioux Falls to London, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.

Flights via Chicago (ORD) offer the fastest connection on this route, with an average stopover time of 2h 12m.

Related info for your journey

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

  • What airport do you fly from for flights from Sioux Falls to London?

    For a flight from Sioux Falls to London, you will be flying from Joe Foss Field. Sioux Falls Joe Foss Field (FSD) is just 2.6 mi from the center of the city. Joe Foss Field is the only Sioux Falls airport and it handles 0 outbound flights to London per day. 0 airlines have flights to London from Sioux Falls Joe Foss Field on a regular basis.

  • How long is the flight from Sioux Falls to London?

    For as low as £884, United Airlines can have you in London from Sioux Falls in 12h 11m. The distance from Sioux Falls to London is about 4205 mi. Both multi-stop and direct flights can be found to your destination and back.

  • What are the most popular routes from Sioux Falls to London?

    The most popular route from Sioux Falls to London is Sioux Falls Joe Foss Field - London Heathrow. You may also consider Sioux Falls Joe Foss Field - London Gatwick or Sioux Falls Joe Foss Field - London City.

  • Can I find deals for flights from Sioux Falls to London that include hotel bookings?

    Yes. In addition to deals on Sioux Falls to London flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Sioux Falls to London?

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

  • Can I find deals for business class flights from Sioux Falls to London?

    Yes. Cheapflights offers flight deals from Sioux Falls 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 Sioux Falls to London?

    Currently, March is the cheapest month in which you can book a flight from Sioux Falls to London (average of £448). Flying from Sioux Falls to London in June is currently the most expensive (average of £910). 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

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Alternative routes for Sioux Falls to London

See prices for flight routes from nearby airports that may be better suited for you.
Sioux Falls to Heathrow flights
Rapid City to Heathrow flights
Sioux Falls to Gatwick flights

Fly with Cheapflights

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How does Cheapflights help users find flights from Sioux Falls to London?

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to London from Sioux Falls today with Cheapflights!

Why should you use Cheapflights to find cheap flight tickets from Sioux Falls to London?

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Sioux Falls to London for you. Better yet — we are completely free to use.

Can Cheapflights find flights from Sioux Falls to London with no change fees?

Cheapflights does show flights with no change fees to all users. To see these options for flights from Sioux Falls to London, users can toggle the no change fees filter when performing a flight search.

Can Cheapflights notify me if prices for flights from Sioux Falls to London become cheaper?

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to London from Sioux Falls today and book when prices fit your budget.

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