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Cheap flights from Sioux Falls to London Heathrow Airport from £252

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 18/11. Fares are subject to change and may not be available on all flights or dates of travel.
FSD — LHR
23 Jul — 30 Jul1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Sioux Falls to Heathrow

Enter your travel dates to find the best prices.

Cheapest flights from Sioux Falls to Heathrow
Explore the most affordable flight options available from Sioux Falls to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 23 June 2026.

Sat 12/918:41
FSD
-
LHR
2 stops29h 49m
United Airlines
Tue 22/906:50
LHR
-
FSD
2 stops17h 16m
United Airlines
Deal found 23/6£708
Mon 24/818:39
FSD
-
LHR
2 stops19h 01m
Lufthansa
Mon 31/820:25
LHR
-
FSD
2 stops29h 42m
Lufthansa
Deal found 18/6£709
Mon 31/805:30
FSD
-
LHR
1 stop18h 55m
KLM
Wed 9/906:30
LHR
-
FSD
2 stops15h 16m
KLM
Deal found 22/6£711
Mon 24/813:33
FSD
-
LHR
1 stop16h 52m
United Airlines
Mon 31/817:50
LHR
-
FSD
2 stops30h 08m
United Airlines
Deal found 18/6£717
Mon 31/818:39
FSD
-
LHR
2 stops16h 01m
Lufthansa
Wed 9/909:00
LHR
-
FSD
2 stops20h 12m
Lufthansa
Deal found 23/6£725
Sun 9/818:28
FSD
-
LHR
2 stops16h 12m
Lufthansa
Mon 17/817:50
LHR
-
FSD
2 stops32h 17m
Lufthansa
Deal found 21/6£738
Tue 4/812:56
FSD
-
LHR
2 stops20h 44m
Lufthansa
Tue 11/819:30
LHR
-
FSD
2 stops33h 52m
Lufthansa
Deal found 20/6£740
Sun 13/907:40
FSD
-
LHR
1 stop17h 05m
United Airlines
Sun 20/906:50
LHR
-
FSD
2 stops22h 22m
United Airlines
Deal found 21/6£744
Sun 6/911:12
FSD
-
LHR
1 stop13h 33m
United Airlines
Sun 13/906:50
LHR
-
FSD
2 stops22h 22m
United Airlines
Deal found 18/6£745

Find flight deals from Sioux Falls to Heathrow

Discover tips and strategies to find the most affordable flight options for your journey from Sioux Falls (FSD) to Heathrow (LHR). 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 23 June 2026.

Round-trip from

£708

One-way from

£252

Popular in

June

Cheapest in

March

Average price

£959
United Airlines
  • United Airlines
  • 12/9-22/9
  • 4 total stops
  • 47h 05m total
  • Sioux Falls to London
Search Deals
United Airlines
  • United Airlines
  • 18/11
  • 2 total stops
  • 15h 50m total
  • Sioux Falls to London
Search Deals
Highest demand for flights based on searches. 24% potential increase in price (£157 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease (£27 potential savings vs. average return price).
Search Deals
Average for round-trip flights in June 2026
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Sioux Falls to Heathrow 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 23 June 2026.
Use the filters below to find and compare flights from Sioux Falls to London Heathrow Airport 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

18:41-10:00

2 stops33h 19m

London Heathrow

Tue 22/9

06:50-23:12

2 stops22h 22m

£708

Sioux FallsLondon

FSD - LHR

FSDLHR

Sioux Falls Joe Foss Field

Mon 31/8

05:30-06:25

1 stop18h 55m

London Heathrow

Wed 9/9

06:30-15:46

2 stops15h 16m

£711

Sioux FallsLondon

FSD - LHR

FSDLHR

Sioux Falls Joe Foss Field

Mon 24/8

13:33-12:25

1 stop16h 52m

London Heathrow

Mon 31/8

17:50-17:58

2 stops30h 08m

£717

Sioux FallsLondon

FSD - LHR

FSDLHR

Sioux Falls Joe Foss Field

Sun 13/9

07:40-06:45

1 stop17h 05m

London Heathrow

Sun 20/9

06:50-23:12

2 stops22h 22m

£744

Sioux FallsLondon

FSD - LHR

FSDLHR

Sioux Falls Joe Foss Field

Sun 6/9

10:54-07:10

2 stops14h 16m

London Heathrow

Sun 13/9

11:30-22:46

2 stops17h 16m

£754
Fastest return journey

Sioux FallsLondon

FSD - LHR

FSDLHR

Sioux Falls Joe Foss Field

Sat 3/10

18:33-11:55

1 stop11h 22m

London Heathrow

Sat 10/10

09:30-17:56

2 stops14h 26m

£760
Cheapest one-way
Fastest single journey

Sioux FallsLondon

FSD - LHR

FSDLHR

Sioux Falls Joe Foss Field

Wed 18/11

11:10-09:40

1 stop16h 30m

£252

Sioux FallsLondon

FSD - LHR

FSDLHR

Sioux Falls Joe Foss Field

Wed 18/11

13:28-11:50

3 stops40h 22m

£470

Flights are sorted by cheapest return flights first.

Deals found on 19/6

Sorted by cheapest first

Best time to book a flight from Sioux Falls to Heathrow

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

Related info for your journey

Find useful and relevant information for your journey from Sioux Falls to Heathrow. 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 Heathrow?

    Most people fly from Sioux Falls Joe Foss Field (FSD) if they book a flight from Sioux Falls to London Heathrow. On average, Joe Foss Field has 0 outbound flights to London Heathrow per day from 0 airlines. Sioux Falls Joe Foss Field is conveniently located just 2.6 mi from Sioux Falls’s city center.

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

    A quick flight from Sioux Falls to London Heathrow Airport can take about 18h 55m. United Airlines provides one of the quickest options available for as low as £711. The distance between Sioux Falls and London Heathrow Airport is about 4189 mi. This flight may include one or multiple stops.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Sioux Falls to Heathrow by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

Travelling to a place near London Heathrow Airport?

Book flights to London Heathrow Airport if you plan to visit one of these locations
Hounslow
Milton Keynes
Wembley
Luton
Gatwick
Croydon
Ilford
Slough
Hayes
Brentford
Colchester
Northampton
Kingston upon Thames
Swindon
Eastbourne
Watford
Poole
Southall
Romford
Ipswich

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Sioux Falls to Heathrow

See prices for flight routes from nearby airports that may be better suited for you.
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 Heathrow?

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

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

Yes! Cheapflights helps users easily find flights from Sioux Falls to Heathrow with no change fees.

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

Of course! You can now track prices for flights from Sioux Falls to Heathrow and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

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