Latest deals
Insights
When to book
FAQs
Price Alerts

Cheap flights from Sioux Falls to London from £235

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Sioux Falls to London departing on 3/10. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags
Voted winner of Europe's Best Travel App 2023

Save money when you book flights with momondo

Big names, great deals

Big names, great deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customise your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from Sioux Falls to London

Cheap return flights

United Airlines Logo
07:45 - 11:15FSD-LHR
21h 30m1 stop
United Airlines Logo
09:00 - 21:47LHR-FSD
18h 47m2 stops
£540United Airlines
Find Deal
Wed, 7 Jan - Wed, 14 Jan
United Airlines Logo
15:12 - 11:45FSD-LHR
14h 33m1 stop
United Airlines Logo
17:40 - 22:22LHR-FSD
34h 42m2 stops
£542United Airlines
Find Deal
Tue, 7 Oct - Fri, 17 Oct
United Airlines Logo
08:00 - 12:20FSD-LHR
22h 20m2 stops
United Airlines Logo
07:25 - 17:27LHR-FSD
16h 02m2 stops
£543United Airlines
Find Deal
Wed, 1 Oct - Wed, 8 Oct
Lufthansa Logo
15:16 - 18:45FSD-LHR
21h 29m2 stops
Lufthansa Logo
19:15 - 20:46LHR-FSD
31h 31m2 stops
£568Lufthansa
Find Deal
Wed, 7 Jan - Mon, 12 Jan
Delta Logo
05:20 - 06:25FSD-LHR
19h 05m1 stop
Delta Logo
06:20 - 19:18LHR-FSD
18h 58m2 stops
£592Delta
Find Deal
Thu, 8 Jan - Thu, 15 Jan
Delta Logo
05:24 - 07:50FSD-LHR
20h 26m1 stop
Delta Logo
06:20 - 22:58LHR-FSD
22h 38m2 stops
£596Delta
Find Deal
Sun, 4 Jan - Tue, 13 Jan
KLM Logo
05:20 - 09:00FSD-LHR
21h 40m1 stop
KLM Logo
06:30 - 15:33LHR-FSD
15h 03m2 stops
£603KLM
Find Deal
Thu, 8 Jan - Tue, 13 Jan
Lufthansa Logo
13:45 - 10:50FSD-LHR
15h 05m2 stops
Lufthansa Logo
11:10 - 21:47LHR-FSD
16h 37m2 stops
£732Lufthansa
Find Deal
Thu, 8 Jan - Wed, 14 Jan
Logo
10:42 - 08:35FSD-LHR
15h 53m1 stop
Logo
14:50 - 10:53LHR-FSD
26h 03m2 stops
£782
Find Deal
Mon, 5 Jan - Sat, 17 Jan
Logo
11:43 - 14:50FSD-LHR
21h 07m1 stop
Logo
14:50 - 10:53LHR-FSD
26h 03m2 stops
£896
Find Deal
Thu, 8 Jan - Sat, 17 Jan

United Airlines flights from Sioux Falls to London Heathrow Airport

Our best United Airlines deals on Sioux Falls to London Heathrow Airport flight tickets
United Airlines
7 Jan
FSD07:45Sioux Falls Joe Foss Field
21h 30m
1 stop
LHR11:15London Heathrow
14 Jan
LHR09:00London Heathrow
18h 47m
2 stops
FSD21:47Sioux Falls Joe Foss Field
£540
Find similar
United Airlines
7 Oct
FSD15:12Sioux Falls Joe Foss Field
14h 33m
1 stop
LHR11:45London Heathrow
17 Oct
LHR17:40London Heathrow
34h 42m
2 stops
FSD22:22Sioux Falls Joe Foss Field
£542
Find similar
United Airlines
1 Oct
FSD08:00Sioux Falls Joe Foss Field
22h 20m
2 stops
LHR12:20London Heathrow
8 Oct
LHR07:25London Heathrow
16h 02m
2 stops
FSD17:27Sioux Falls Joe Foss Field
£543
Find similar

Lufthansa flights from Sioux Falls to London Heathrow Airport

Our best Lufthansa deals on Sioux Falls to London Heathrow Airport flight tickets
Lufthansa
7 Jan
FSD15:16Sioux Falls Joe Foss Field
21h 29m
2 stops
LHR18:45London Heathrow
12 Jan
LHR19:15London Heathrow
31h 31m
2 stops
FSD20:46Sioux Falls Joe Foss Field
£568
Find similar
Lufthansa
21 Aug
FSD11:20Sioux Falls Joe Foss Field
18h 25m
1 stop
LHR11:45London Heathrow
5 Sept
LHR09:30London Heathrow
16h 59m
2 stops
FSD20:29Sioux Falls Joe Foss Field
£698
Find similar
Lufthansa
8 Jan
FSD13:45Sioux Falls Joe Foss Field
15h 05m
2 stops
LHR10:50London Heathrow
14 Jan
LHR11:10London Heathrow
16h 37m
2 stops
FSD21:47Sioux Falls Joe Foss Field
£732
Find similar

momondo Fare Finder

 
Customise your flight search to find flights from Sioux Falls to London Heathrow Airport 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, momondo users made 279,928 searches. Data last updated 18 August 2025.
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

Sioux FallsLondon

FSD - LHR

FSDLHR

Sioux Falls Joe Foss Field

Wed 7/1

07:45-11:15

1 stop21h 30m

London Heathrow

Wed 14/1

09:00-21:47

2 stops18h 47m

£540

Sioux FallsLondon

FSD - LHR

FSDLHR

Sioux Falls Joe Foss Field

Tue 7/10

15:12-11:45

1 stop14h 33m

London Heathrow

Fri 17/10

17:40-22:22

2 stops34h 42m

£542

Sioux FallsLondon

FSD - LHR

FSDLHR

Sioux Falls Joe Foss Field

Wed 1/10

08:00-12:20

2 stops22h 20m

London Heathrow

Wed 8/10

07:25-17:27

2 stops16h 02m

£543

Sioux FallsLondon

FSD - LHR

FSDLHR

Sioux Falls Joe Foss Field

Wed 7/1

15:16-18:45

2 stops21h 29m

London Heathrow

Mon 12/1

19:15-20:46

2 stops31h 31m

£568

Sioux FallsLondon

FSD - LHR

FSDLHR

Sioux Falls Joe Foss Field

Thu 8/1

05:20-06:25

1 stop19h 05m

London Heathrow

Thu 15/1

06:20-19:18

2 stops18h 58m

£592

Sioux FallsLondon

FSD - LHR

FSDLHR

Sioux Falls Joe Foss Field

Sun 4/1

05:24-07:50

1 stop20h 26m

London Heathrow

Tue 13/1

06:20-22:58

2 stops22h 38m

£596

Sioux FallsLondon

FSD - LHR

FSDLHR

Sioux Falls Joe Foss Field

Thu 8/1

05:20-09:00

1 stop21h 40m

London Heathrow

Tue 13/1

06:30-15:33

2 stops15h 03m

£603

Sioux FallsLondon

FSD - LHR

FSDLHR

Sioux Falls Joe Foss Field

Thu 8/1

13:45-10:50

2 stops15h 05m

London Heathrow

Wed 14/1

11:10-21:47

2 stops16h 37m

£732

Sioux FallsLondon

FSD - LHR

FSDLHR

Sioux Falls Joe Foss Field

Mon 5/1

10:42-08:35

1 stop15h 53m

London Heathrow

Sat 17/1

14:50-10:53

2 stops26h 03m

£782

Sioux FallsLondon

FSD - LHR

FSDLHR

Sioux Falls Joe Foss Field

Thu 8/1

11:43-14:50

1 stop21h 07m

London Heathrow

Sat 17/1

14:50-10:53

2 stops26h 03m

£896

Flights are sorted by cheapest return flights first.

Showing 1-10 of 13 resultsSorted by cheapest first
1
2

See travel insights to London from

How to get the cheapest flight ticket from Sioux Falls to London Heathrow Airport

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to London Heathrow Airport?

In general, August is the cheapest month to fly from Sioux Falls to London Heathrow Airport. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around £502. The month of September is another great option to travel to London Heathrow Airport, with average flight prices from Sioux Falls averaging around £570.

When to book flights from Sioux Falls to London Heathrow Airport

Are you open to changing your travel dates? Check out the ideal times to fly from Sioux Falls to London Heathrow Airport according to our flight data. Find out which month and days have the cheapest flights.
Estimated return price

Cheap Sioux Falls to London Heathrow Airport (FSD to LHR) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Sioux Falls to London Heathrow Airport

Best price found

£235

Fastest flight time

10h 39m

Direct flights

None
The best one-way flight to London Heathrow Airport from Sioux Falls in the past 72 hours is £235. The best return flight deal from Sioux Falls to London Heathrow Airport found on momondo in the last 72 hours is £540.
The fastest flight from Sioux Falls to London Heathrow Airport takes 10h 39m
There are no direct flights from Sioux Falls to London Heathrow Airport. Popular non-direct route for this connection is Sioux Falls Joe Foss Field Airport - London Heathrow Airport.
Search flight deals

  • How far is Sioux Falls Joe Foss Field to London Heathrow by plane?

    London Heathrow is 4190.1 mi away from Sioux Falls Joe Foss Field. Flights usually cover this in 10h 39m, depending on flying conditions and air traffic around both airports.

  • When did momondo last update prices for flights from Sioux Falls Joe Foss Field Airport to London Heathrow Airport?

    Prices for flights from Sioux Falls Joe Foss Field Airport to London Heathrow Airport are refreshed on a daily basis.

  • How old do you have to be to fly from Sioux Falls Joe Foss Field Airport to London Heathrow Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Sioux Falls Joe Foss Field Airport to London Heathrow Airport.

  • What documentation or ID do you need to fly to London Heathrow Airport?

    The required travel and health documents for your London Heathrow Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at London Heathrow Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Travelling to a place near London?

Book flights to London if you plan to visit one of these locations
Eastbourne
Milton Keynes
Luton
Northampton
Slough
Maidstone
Swindon
Gatwick
Southend-on-Sea
Canterbury
Stratford-upon-Avon
Ipswich
Ilford
Guildford
Colchester
Swanage
Worthing
Hounslow
Dartford
Dover

Why use momondo?

Why should I use momondo to find a flight deal from Sioux Falls to London?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to London from Sioux Falls.

Can I find flights from Sioux Falls to London with flexible booking policies on momondo?

momondo does allow users to show only those flights to London from Sioux Falls which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Sioux Falls to London?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to London from Sioux Falls.

I’m not ready to book a flight from Sioux Falls to London right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Sioux Falls to London now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to London and let you know when they change.

An easier way to manage your London Heathrow Airport trip

We make it super easy to schedule, organise and travel with friends or family. Trips is free – and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Sat 23/8
Sat 30/8
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to London