Cheap Flights from Sioux Falls to London Heathrow

Compare Sioux Falls to London Heathrow flight deals

Find the cheapest month or even day of the year to fly to London Heathrow

Book the best London Heathrow fare with no extra fees

Flight deals from Sioux Falls to London Heathrow

Looking for a cheap last-minute deal or the best return flight from Sioux Falls Airport to London Heathrow Airport? If you want to travel next month, return fares start from R 17,474. Find the lowest prices on one-way and return tickets right here.

Find the cheapest month to fly from Sioux Falls to London Heathrow

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Sioux Falls to London Heathrow flights are currently cheapest in September.

Sioux Falls to London: Flight information

The things to know before you go.
Cheapest flight foundR 5,363
Cheapest month to flySeptember

Finding cheap flights from Sioux Falls to London Heathrow: Frequently asked questions

The best price we found for a return flight from Sioux Falls to London Heathrow is R 13,802. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
Currently, there are no airlines that fly direct from Sioux Falls to London Heathrow. But we found flights with one or more stops from R 13,802.
As of June 2026, there are no flights flying from Sioux Falls to London Heathrow.
The cheapest month to fly from Sioux Falls to London Heathrow is usually August.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Sioux Falls Airport to London Heathrow Airport on Monday, 31 August 2026.
No airlines currently offer direct flights between Sioux Falls Airport and London Heathrow Airport. Most routes have one or more stops.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to London Heathrow but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.

We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to London is around 40 days in advance, so don’t leave your flight to the last minute.

Currently, Allegiant Air offers the cheapest flight tickets to London Heathrow.

Flying from Sioux Falls Airport (FSD) to London Heathrow Airport (LHR): what you need to know

  • The timezone in London is UTC+0, which is six hours ahead of Sioux Falls.

  • Arriving two hours before an international flight and one hour ahead of a domestic departure are golden rules for stress-free travel. Show up at the airport on time to board your FSD to LHR flight.

  • During popular months like May, it's best to get to the airport earlier than usual. Plan to arrive two hours before domestic departures and four hours ahead of an international flight when you travel during a high season in general.

  • If you want to break up your flight, simply deselect 'Direct flights only' when searching for your ticket from Sioux Falls Airport to London Heathrow Airport. These are the top stopovers between FSD and LHR:

    • Chicago O'Hare International Airport

    • Denver International Airport

    • Minneapolis St Paul Airport

How to find the cheapest flights from Sioux Falls Airport (FSD) to London Heathrow Airport (LHR)

  • The cheapest price we've seen for a one-way Sioux Falls Airport to London Heathrow Airport flight is R 5,363. A return fare is currently R 13,802. Depending on the availability when you book, these fares could change.

  • To get your hands on cheap tickets from FSD to LHR, book in advance. Airlines generally offer lower fares when flights are first released.

  • The 'Whole month' search tool shows you the cheapest flights from Sioux Falls Airport to London Heathrow Airport across the month. It's a great way to find a bargain if your plans aren't set in stone.

  • Picking up cheap flights from FSD to LHR is easy with Price Alerts. Simply set up one of these automatic alerts and we'll get in touch when fares go down.

  • Select your ideal departure and arrival times, number of stops and airlines with the filters. Or sort your results by 'Cheapest' to get the best deals on flights from Sioux Falls Airport to London Heathrow Airport.

Handy information about Sioux Falls Airport (FSD)

  • You'll find FSD at 2801 Jaycee Lane.

  • Of the flights that depart from Sioux Falls Airport, 70% arrive as scheduled at their destination.

  • Sioux Falls Airport is around 10 kilometres from central Sioux Falls. If you're ride-sharing, catching a taxi or driving from the centre, it'll take you 15 minutes or so to get there, depending on the traffic.

  • Catching public transport? You can expect a journey time of around 35 minutes.

  • Taking an early flight from Sioux Falls Airport to London Heathrow Airport? Avoid rushing to the airport (and sneak in some extra precious sleep) by picking one of these hotels near FSD:

Arriving at London Heathrow Airport (LHR)

Getting from London Heathrow Airport (LHR) to central London

  • London Heathrow Airport to central London has a drive time of around 45 minutes. It's approximately 24 kilometres away.

  • Travelling by public transport typically takes 25 minutes.

When to fly to London Heathrow Airport (LHR)

  • It's time to work out your trip dates for your flight from Sioux Falls Airport to London Heathrow Airport. July is the busiest month to head to London. If you like a quieter vibe, go in March.

  • Before locking in your flight from Sioux Falls Airport to London Heathrow Airport, think about the type of weather you like. July is the warmest month in London, with temperatures ranging from 11ºC (52ºF) to 26ºC (79ºF).

  • If you'd rather travel in cooler conditions, look for a cheap ticket from FSD to LHR in January. Average temperatures are between 0ºC (32ºF) and 9ºC (48ºF) then.

Explore more of the United Kingdom

  • London has plenty to offer, but there are so many other corners of the United Kingdom waiting to be explored. Around 257 kilometres north-west of London, a visit to Manchester will keep your itinerary packed. Don't miss top attractions like Manchester United Museum & Stadium Tour, The Homes of Football and Museum of Science and Industry.

  • Birmingham is another sought-after destination in the United Kingdom and is around 161 kilometres north-west of London. No journey is complete without experiencing Birmingham Museum & Art Gallery, Birmingham Hippodrome Theatre and Bournville Experience.

Prices shown on this page are estimated lowest prices only. Found in the last 12 days.