Cheap flights from Sioux Falls to London from £397

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 31/3. 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
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Cheap return flights

Enter your travel dates to find the best prices.
Lufthansa Logo
18:37 - 18:40
FSD
-
LHR
18h 03m
2 stops
Lufthansa Logo
09:00 - 21:52
LHR
-
FSD
18h 52m
2 stops
£528Lufthansa
Wed, 26 Aug - Wed, 2 Sep
United Airlines Logo
09:36 - 12:20
FSD
-
LHR
20h 44m
1 stop
United Airlines Logo
06:50 - 21:52
LHR
-
FSD
21h 02m
2 stops
£543United Airlines
Wed, 26 Aug - Wed, 2 Sep
Lufthansa Logo
18:53 - 18:25
FSD
-
LHR
17h 32m
2 stops
Lufthansa Logo
07:25 - 20:30
LHR
-
FSD
19h 05m
2 stops
£562Lufthansa
Mon, 6 Apr - Fri, 17 Apr
Multiple Airlines Logo
13:27 - 10:55
FSD
-
LHR
15h 28m
1 stop
Multiple Airlines Logo
13:10 - 00:27
LHR
-
FSD
17h 17m
1 stop
£564Multiple Airlines
Wed, 26 Aug - Wed, 2 Sep
Iberia Logo
14:06 - 10:30
FSD
-
LHR
14h 24m
1 stop
Iberia Logo
06:15 - 23:11
LHR
-
FSD
22h 56m
2 stops
£585Iberia
Sun, 5 Apr - Tue, 21 Apr
United Airlines Logo
15:10 - 11:55
FSD
-
LHR
14h 45m
1 stop
United Airlines Logo
06:50 - 17:44
LHR
-
FSD
16h 54m
2 stops
£588United Airlines
Tue, 21 Apr - Tue, 28 Apr
Delta Logo
11:01 - 09:25
FSD
-
LGW
16h 24m
2 stops
Delta Logo
10:35 - 23:40
LGW
-
FSD
19h 05m
2 stops
£597Delta
Sun, 5 Apr - Tue, 21 Apr
Iberia Logo
12:29 - 10:50
FSD
-
LGW
16h 21m
2 stops
Iberia Logo
20:40 - 23:11
LGW
-
FSD
32h 31m
2 stops
£626Iberia
Mon, 20 Apr - Mon, 27 Apr
Delta Logo
13:44 - 09:25
FSD
-
LGW
13h 41m
2 stops
Delta Logo
10:25 - 23:11
LGW
-
FSD
18h 46m
2 stops
£634Delta
Fri, 1 May - Fri, 8 May
KLM Logo
13:34 - 09:30
FSD
-
LCY
13h 56m
2 stops
KLM Logo
10:00 - 19:22
LCY
-
FSD
15h 22m
2 stops
£730KLM
Sun, 5 Apr - Tue, 21 Apr

KLM flights from Sioux Falls to London

Our best KLM deals on Sioux Falls to London flight tickets
KLM
20 Apr
FSD05:25Sioux Falls Joe Foss Field
19h 00m
1 stop
LHR06:25London Heathrow
27 Apr
LHR09:20London Heathrow
20h 20m
1 stop
FSD23:40Sioux Falls Joe Foss Field
£641
KLM
1 May
FSD13:44Sioux Falls Joe Foss Field
17h 21m
1 stop
LHR13:05London Heathrow
7 May
LHR12:25London Heathrow
16h 46m
1 stop
FSD23:11Sioux Falls Joe Foss Field
£647
KLM
1 Apr
FSD13:34Sioux Falls Joe Foss Field
17h 31m
1 stop
LHR13:05London Heathrow
8 Apr
LHR06:30London Heathrow
15h 02m
2 stops
FSD15:32Sioux Falls Joe Foss Field
£668

Delta flights from Sioux Falls to London

Our best Delta deals on Sioux Falls to London flight tickets
Delta
5 Apr
FSD11:01Sioux Falls Joe Foss Field
16h 24m
2 stops
LGW09:25London Gatwick
21 Apr
LGW10:35London Gatwick
19h 05m
2 stops
FSD23:40Sioux Falls Joe Foss Field
£597
Delta
5 Apr
FSD05:00Sioux Falls Joe Foss Field
20h 10m
2 stops
LHR07:10London Heathrow
21 Apr
LHR11:20London Heathrow
18h 20m
2 stops
FSD23:40Sioux Falls Joe Foss Field
£613
Delta
1 May
FSD13:44Sioux Falls Joe Foss Field
17h 31m
2 stops
LHR13:15London Heathrow
8 May
LHR09:55London Heathrow
19h 16m
2 stops
FSD23:11Sioux Falls Joe Foss Field
£629

momondo Fare Finder

 
Customise your flight search to find flights from Sioux Falls to London 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 10 March 2026.
Use the filters below to find and compare flights from Sioux Falls to London 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

Wed 26/8

18:37-18:40

2 stops18h 03m

London Heathrow

Wed 2/9

09:00-21:52

2 stops18h 52m

£528

Sioux FallsLondon

FSD - LHR

FSDLHR

Sioux Falls Joe Foss Field

Wed 26/8

09:36-12:20

1 stop20h 44m

London Heathrow

Wed 2/9

06:50-21:52

2 stops21h 02m

£543

Sioux FallsLondon

FSD - LHR

FSDLHR

Sioux Falls Joe Foss Field

Mon 6/4

18:53-18:25

2 stops17h 32m

London Heathrow

Fri 17/4

07:25-20:30

2 stops19h 05m

£562

Sioux FallsLondon

FSD - LHR

FSDLHR

Sioux Falls Joe Foss Field

Wed 26/8

13:27-10:55

1 stop15h 28m

London Heathrow

Wed 2/9

13:10-00:27

1 stop17h 17m

£564

Sioux FallsLondon

FSD - LHR

FSDLHR

Sioux Falls Joe Foss Field

Sun 5/4

14:06-10:30

1 stop14h 24m

London Heathrow

Tue 21/4

06:15-23:11

2 stops22h 56m

£585

Sioux FallsLondon

FSD - LHR

FSDLHR

Sioux Falls Joe Foss Field

Tue 21/4

15:10-11:55

1 stop14h 45m

London Heathrow

Tue 28/4

06:50-17:44

2 stops16h 54m

£588

Sioux FallsLondon

FSD - LGW

FSDLGW

Sioux Falls Joe Foss Field

Sun 5/4

11:01-09:25

2 stops16h 24m

London Gatwick

Tue 21/4

10:35-23:40

2 stops19h 05m

£597

Sioux FallsLondon

FSD - LGW

FSDLGW

Sioux Falls Joe Foss Field

Mon 20/4

12:29-10:50

2 stops16h 21m

London Gatwick

Mon 27/4

20:40-23:11

2 stops32h 31m

£626

Sioux FallsLondon

FSD - LGW

FSDLGW

Sioux Falls Joe Foss Field

Fri 1/5

13:44-09:25

2 stops13h 41m

London Gatwick

Fri 8/5

10:25-23:11

2 stops18h 46m

£634
Fastest return journey

Sioux FallsLondon

FSD - LCY

FSDLCY

Sioux Falls Joe Foss Field

Sun 5/4

13:34-09:30

2 stops13h 56m

London City

Tue 21/4

10:00-19:22

2 stops15h 22m

£730

Flights are sorted by cheapest return flights first.

Showing 1-10 of 17 resultsSorted by cheapest first
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See travel insights to London from

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

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 airline that flies from Sioux Falls Joe Foss Field to London?

American Airlines, Delta, and KLM are the most popular carriers operating from Sioux Falls Joe Foss Field to London

When to book flights from Sioux Falls to London

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

Cheap Sioux Falls to London (FSD to LON) flight deals and tips

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

Fastest flight time

12h 11m

Direct flights

None
The fastest flight from Sioux Falls to London takes 12h 11m
There are no direct flights from Sioux Falls to London. There are no popular flight routes from Sioux Falls to London.
  • How far is Sioux Falls Joe Foss Field to London by plane?

    London is 4200.7 mi away from Sioux Falls Joe Foss Field. 12h 11m is a normal flight duration for this route.

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

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

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

    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.

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

    The required travel and health documents for your London 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. 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
Gatwick
Maidstone
Slough
Southend-on-Sea
Canterbury
Ipswich
Ilford
Wembley
Guildford
Chelmsford
Hayes
Dover
Folkestone
Worthing
Colchester
Bedford
Ramsgate

Why use momondo?

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

Finding the right flight to London from Sioux Falls is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to London quick and easy, saving you time and money.

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

Flights from Sioux Falls to London with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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

momondo helps you find the best flight between Sioux Falls and London by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

Of course. momondo tracks the price of Sioux Falls to London flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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1 adult
Thu 9/4
Thu 16/4

Find better results for your trip to the United Kingdom

Fly into one of these airports located in London

Airports listed have a maximum distance of 35.6 mi from London