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Cheap flights from Sioux Falls to London Heathrow Airport from £253

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 15/8. Fares are subject to change and may not be available on all flights or dates of travel.
FSD — LHR
11 Jun — 18 Jun1
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 12 May 2026.

Mon 7/912:07
FSD
-
LHR
1 stop16h 23m
Iberia
Tue 15/914:45
LHR
-
FSD
1 stop15h 06m
Iberia
Deal found 11/5£667
Sat 12/912:30
FSD
-
LHR
1 stop16h 20m
Iberia
Tue 22/907:50
LHR
-
FSD
2 stops22h 01m
Iberia
Deal found 11/5£679
Sat 12/918:50
FSD
-
LHR
2 stops29h 40m
United Airlines
Tue 22/906:50
LHR
-
FSD
2 stops21h 02m
United Airlines
Deal found 12/5£696
Sat 12/912:25
FSD
-
LHR
1 stop14h 40m
American Airlines
Tue 22/911:00
LHR
-
FSD
1 stop16h 55m
American Airlines
Deal found 12/5£704
Mon 19/1017:05
FSD
-
LHR
1 stop13h 20m
United Airlines
Sun 25/1006:50
LHR
-
FSD
2 stops15h 44m
United Airlines
Deal found 9/5£727
Sat 15/815:08
FSD
-
LHR
1 stop33h 37m
United Airlines
Sat 22/806:55
LHR
-
FSD
2 stops19h 12m
United Airlines
Deal found 10/5£731
Sat 15/817:23
FSD
-
LHR
1 stop12h 52m
Iberia
Sat 22/814:45
LHR
-
FSD
1 stop15h 46m
Iberia
Deal found 10/5£741
Mon 7/913:20
FSD
-
LHR
2 stops17h 55m
Virgin Atlantic
Tue 15/909:40
LHR
-
FSD
2 stops19h 06m
Virgin Atlantic
Deal found 11/5£773

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 12 May 2026.

Round-trip from

£667

One-way from

£253

Popular in

June

Cheapest in

January

Average price

£725
Iberia
  • Iberia
  • 7/9-15/9
  • 2 total stops
  • 31h 29m total
  • Sioux Falls to London
Search Deals
Iberia
  • Iberia
  • 15/8
  • 1 total stop
  • 32h 42m total
  • Sioux Falls to London
Search Deals
Highest demand for flights based on searches. 23% potential increase in price (£143 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (£22 potential savings vs. average return price).
Search Deals
Average for round-trip flights in May 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 12 May 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
Fastest return journey

Sioux FallsLondon

FSD - LHR

FSDLHR

Sioux Falls Joe Foss Field

Mon 19/10

06:00-10:00

2 stops22h 00m

London Heathrow

Sun 25/10

06:50-17:34

2 stops15h 44m

£729

Sioux FallsLondon

FSD - LHR

FSDLHR

Sioux Falls Joe Foss Field

Wed 10/6

13:18-10:40

2 stops15h 22m

London Heathrow

Thu 9/7

06:50-23:31

2 stops22h 41m

£1,022

Sioux FallsLondon

FSD - LHR

FSDLHR

Sioux Falls Joe Foss Field

Tue 23/6

17:05-12:25

1 stop13h 20m

London Heathrow

Tue 30/6

17:40-18:16

2 stops30h 36m

£1,035

Sioux FallsLondon

FSD - LHR

FSDLHR

Sioux Falls Joe Foss Field

Wed 17/6

07:40-10:15

2 stops20h 35m

London Heathrow

Wed 1/7

09:30-23:31

2 stops20h 01m

£1,042

Sioux FallsLondon

FSD - LHR

FSDLHR

Sioux Falls Joe Foss Field

Mon 25/5

13:18-12:25

1 stop17h 07m

London Heathrow

Mon 1/6

17:50-17:55

2 stops30h 05m

£1,043

Sioux FallsLondon

FSD - LHR

FSDLHR

Sioux Falls Joe Foss Field

Fri 26/6

09:30-12:25

1 stop20h 55m

London Heathrow

Tue 21/7

07:30-23:31

2 stops22h 01m

£1,087
Cheapest one-way

Sioux FallsLondon

FSD - LHR

FSDLHR

Sioux Falls Joe Foss Field

Sat 15/8

18:41-21:20

2 stops20h 39m

£267

Sioux FallsLondon

FSD - LHR

FSDLHR

Sioux Falls Joe Foss Field

Sun 2/8

11:16-09:00

1 stop15h 44m

£426

Sioux FallsLondon

FSD - LHR

FSDLHR

Sioux Falls Joe Foss Field

Wed 15/7

20:14-11:55

2 stops57h 41m

£429

Sioux FallsLondon

FSD - LHR

FSDLHR

Sioux Falls Joe Foss Field

Sat 15/8

10:33-13:30

3 stops44h 57m

£433

Flights are sorted by cheapest return flights first.

Deals found on 10/5

Showing 1-10 of 16 resultsSorted by cheapest first
1
2

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.

Cheapflights Insights

Everything you need to know about your flight from Sioux Falls to London Heathrow Airport

How much does it cost for a return flight from Sioux Falls to London Heathrow Airport?

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 22h. United Airlines provides one of the quickest options available for as low as £729. The distance between Sioux Falls and London Heathrow Airport is about 4189 mi.

  • 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
Milton Keynes
Hounslow
Croydon
Wembley
Northampton
Luton
Gatwick
Slough
Ilford
Hayes
Brentford
Colchester
Romford
Watford
Kingston upon Thames
Eastbourne
Swindon
Ipswich
Southend-on-Sea
Guildford

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.
Sioux Falls to Gatwick flights
Rapid City to Heathrow flights

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How does Cheapflights help users find flights 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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