Find flights
When to book
FAQs

Cheap flights from Sioux Falls to London Heathrow Airport from £167

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 20/4. Fares are subject to change and may not be available on all flights or dates of travel.
FSD — LHR
11 Jan — 18 Jan1
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 December 2025.

Fri 12/1208:00FSD - LHR
2 stops19h 40mUnited Airlines
Fri 19/1207:25LHR - FSD
1 stop13h 02mUnited Airlines
Deal found 11/12£654

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 December 2025.

Round-trip from

£421

One-way from

£167

Popular in

June

Cheapest in

August

Average price

£718
Lufthansa
  • Lufthansa
  • 21/1-30/1
  • 3 total stops
  • 32h 48m total
  • Sioux Falls to London
Search Deals
American Airlines
  • American Airlines
  • 20/4
  • 1 total stop
  • 12h 50m total
  • Sioux Falls to London
Search Deals
Highest demand for flights based on searches. 28% potential increase in price (£217 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 7% potential price decrease (£37 potential savings vs. average return price).
Search Deals
Average for round-trip flights in December 2025
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 December 2025.
Use the filters below to find and compare flights from Sioux Falls to London Heathrow Airport that are best for you.

Fly from

Sioux Falls

Fly to

Heathrow

Route

Depart

Return

Price

Sioux FallsLondon

FSD - LHR

FSDLHR

Sioux Falls Joe Foss Field

Wed 21/1

15:11-11:15

1 stop14h 04m

London Heathrow

Fri 30/1

07:40-20:24

2 stops18h 44m

£421

Sioux FallsLondon

FSD - LHR

FSDLHR

Sioux Falls Joe Foss Field

Mon 26/1

15:11-05:55

1 stop32h 44m

London Heathrow

Mon 2/2

06:50-21:50

2 stops21h 00m

£468

Sioux FallsLondon

FSD - LHR

FSDLHR

Sioux Falls Joe Foss Field

Fri 23/1

07:30-05:55

1 stop16h 25m

London Heathrow

Tue 27/1

06:50-17:18

2 stops16h 28m

£468

Sioux FallsLondon

FSD - LHR

FSDLHR

Sioux Falls Joe Foss Field

Sat 24/1

07:30-11:15

1 stop21h 45m

London Heathrow

Sat 31/1

06:35-21:50

2 stops21h 15m

£469

Sioux FallsLondon

FSD - LHR

FSDLHR

Sioux Falls Joe Foss Field

Sat 24/1

12:19-11:35

1 stop17h 16m

London Heathrow

Sat 31/1

15:45-11:51

1 stop26h 06m

£490

Sioux FallsLondon

FSD - LHR

FSDLHR

Sioux Falls Joe Foss Field

Mon 20/4

12:30-10:30

1 stop16h 00m

£167

Sioux FallsLondon

FSD - LHR

FSDLHR

Sioux Falls Joe Foss Field

Mon 20/4

10:58-08:50

2 stops15h 52m

£225

Flights are sorted by cheapest return flights first.

Deals found on 10/12

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 14h 04m. Lufthansa provides one of the quickest options available for as low as £421. 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
Milton Keynes
Croydon
Slough
Northampton
Hounslow
Luton
Gatwick
Wembley
Ilford
Brentford
Colchester
Watford
Hayes
Crawley
Winchester
Swindon
Deal
Bedford
Romford
Chichester

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.

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

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

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

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 Heathrow from Sioux Falls today with Cheapflights!

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

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Sioux Falls to Heathrow.

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.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.