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Cheap flights from Sioux Falls to London from $334

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 11/30. 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
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Sioux Falls to London

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
6:20 pm - 7:55 am
FSD
-
LHR
31h 35m
1 stop
United Airlines Logo
6:50 am - 11:36 pm
LHR
-
FSD
22h 46m
2 stops
$752United Airlines
Sun, Nov 8 - Wed, Nov 11
United Airlines Logo
5:15 pm - 9:40 am
FSD
-
LHR
34h 25m
1 stop
United Airlines Logo
6:50 am - 6:06 pm
LHR
-
FSD
17h 16m
2 stops
$881United Airlines
Sat, Sep 12 - Tue, Sep 22
United Airlines Logo
5:15 pm - 6:30 am
FSD
-
LHR
31h 15m
2 stops
United Airlines Logo
6:50 am - 6:06 pm
LHR
-
FSD
17h 16m
2 stops
$884United Airlines
Sat, Sep 12 - Tue, Sep 22
United Airlines Logo
11:20 am - 7:55 am
FSD
-
LHR
14h 35m
1 stop
United Airlines Logo
11:35 am - 8:46 pm
LHR
-
FSD
15h 11m
1 stop
$905United Airlines
Sun, Nov 8 - Wed, Nov 11
Iberia Logo
12:11 pm - 10:50 am
FSD
-
LHR
16h 39m
1 stop
Iberia Logo
6:15 am - 12:20 am
LHR
-
FSD
24h 05m
2 stops
$921Iberia
Sun, Sep 13 - Sun, Sep 20
Lufthansa Logo
6:39 pm - 6:25 pm
FSD
-
LHR
17h 46m
2 stops
Lufthansa Logo
8:25 pm - 8:07 pm
LHR
-
FSD
29h 42m
2 stops
$937Lufthansa
Mon, Aug 24 - Mon, Aug 31
Lufthansa Logo
6:39 pm - 7:40 pm
FSD
-
LHR
19h 01m
2 stops
Lufthansa Logo
8:25 pm - 8:07 pm
LHR
-
FSD
29h 42m
2 stops
$938Lufthansa
Mon, Aug 24 - Mon, Aug 31
United Airlines Logo
6:41 pm - 6:30 am
FSD
-
LHR
29h 49m
2 stops
United Airlines Logo
6:50 am - 6:06 pm
LHR
-
FSD
17h 16m
2 stops
$939United Airlines
Sat, Sep 12 - Tue, Sep 22
United Airlines Logo
5:15 pm - 9:40 am
FSD
-
LHR
34h 25m
1 stop
United Airlines Logo
6:50 am - 6:06 pm
LHR
-
FSD
17h 16m
2 stops
$941United Airlines
Sat, Sep 12 - Tue, Sep 22
United Airlines Logo
5:15 pm - 9:40 am
FSD
-
LHR
34h 25m
1 stop
United Airlines Logo
6:50 am - 6:06 pm
LHR
-
FSD
17h 16m
2 stops
$942United Airlines
Sat, Sep 12 - Tue, Sep 22

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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
Nov 8
FSD6:20 pmSioux Falls Joe Foss Field
31h 35m
1 stop
LHR7:55 amLondon Heathrow
Nov 11
LHR6:50 amLondon Heathrow
22h 46m
2 stops
FSD11:36 pmSioux Falls Joe Foss Field
$752
United Airlines
Nov 8
FSD11:20 amSioux Falls Joe Foss Field
14h 35m
1 stop
LHR7:55 amLondon Heathrow
Nov 11
LHR11:35 amLondon Heathrow
15h 11m
1 stop
FSD8:46 pmSioux Falls Joe Foss Field
$905
United Airlines
Sep 12
FSD6:41 pmSioux Falls Joe Foss Field
29h 49m
2 stops
LHR6:30 amLondon Heathrow
Sep 22
LHR6:50 amLondon Heathrow
17h 16m
2 stops
FSD6:06 pmSioux Falls Joe Foss Field
$939

Lufthansa flights from Sioux Falls to London Heathrow Airport

Our best Lufthansa deals on Sioux Falls to London Heathrow Airport flight tickets
Lufthansa
Aug 24
FSD6:39 pmSioux Falls Joe Foss Field
17h 46m
2 stops
LHR6:25 pmLondon Heathrow
Aug 31
LHR8:25 pmLondon Heathrow
29h 42m
2 stops
FSD8:07 pmSioux Falls Joe Foss Field
$937
Lufthansa
Aug 24
FSD6:39 pmSioux Falls Joe Foss Field
19h 01m
2 stops
LHR7:40 pmLondon Heathrow
Aug 31
LHR8:25 pmLondon Heathrow
29h 42m
2 stops
FSD8:07 pmSioux Falls Joe Foss Field
$938
Lufthansa
Aug 20
FSD6:39 pmSioux Falls Joe Foss Field
17h 46m
2 stops
LHR6:25 pmLondon Heathrow
Aug 25
LHR9:00 amLondon Heathrow
20h 22m
2 stops
FSD11:22 pmSioux Falls Joe Foss Field
$975

momondo Fare Finder

 
Customize 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 832,500 searches. Data last updated June 19, 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 round-trip

Sioux FallsLondon

FSD - LHR

FSDLHR

Sioux Falls Joe Foss Field

Sun 11/8

6:20 pm-7:55 am

1 stop31h 35m

London Heathrow

Wed 11/11

6:50 am-11:36 pm

2 stops22h 46m

$752

Sioux FallsLondon

FSD - LHR

FSDLHR

Sioux Falls Joe Foss Field

Sat 9/12

5:15 pm-9:40 am

1 stop34h 25m

London Heathrow

Tue 9/22

6:50 am-6:06 pm

2 stops17h 16m

$881

Sioux FallsLondon

FSD - LHR

FSDLHR

Sioux Falls Joe Foss Field

Sat 9/12

5:15 pm-6:30 am

2 stops31h 15m

London Heathrow

Tue 9/22

6:50 am-6:06 pm

2 stops17h 16m

$884
Quickest round-trip

Sioux FallsLondon

FSD - LHR

FSDLHR

Sioux Falls Joe Foss Field

Sun 11/8

11:20 am-7:55 am

1 stop14h 35m

London Heathrow

Wed 11/11

11:35 am-8:46 pm

1 stop15h 11m

$905

Sioux FallsLondon

FSD - LHR

FSDLHR

Sioux Falls Joe Foss Field

Sun 9/13

12:11 pm-10:50 am

1 stop16h 39m

London Heathrow

Sun 9/20

6:15 am-12:20 am

2 stops24h 05m

$921

Sioux FallsLondon

FSD - LHR

FSDLHR

Sioux Falls Joe Foss Field

Mon 8/24

6:39 pm-6:25 pm

2 stops17h 46m

London Heathrow

Mon 8/31

8:25 pm-8:07 pm

2 stops29h 42m

$937

Sioux FallsLondon

FSD - LHR

FSDLHR

Sioux Falls Joe Foss Field

Mon 8/24

6:39 pm-7:40 pm

2 stops19h 01m

London Heathrow

Mon 8/31

8:25 pm-8:07 pm

2 stops29h 42m

$938

Sioux FallsLondon

FSD - LHR

FSDLHR

Sioux Falls Joe Foss Field

Sat 9/12

6:41 pm-6:30 am

2 stops29h 49m

London Heathrow

Tue 9/22

6:50 am-6:06 pm

2 stops17h 16m

$939

Sioux FallsLondon

FSD - LHR

FSDLHR

Sioux Falls Joe Foss Field

Sat 9/12

5:15 pm-9:40 am

1 stop34h 25m

London Heathrow

Tue 9/22

6:50 am-6:06 pm

2 stops17h 16m

$941

Sioux FallsLondon

FSD - LHR

FSDLHR

Sioux Falls Joe Foss Field

Sat 9/12

5:15 pm-9:40 am

1 stop34h 25m

London Heathrow

Tue 9/22

6:50 am-6:06 pm

2 stops17h 16m

$942

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 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 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?

The month of November is, on average, the cheapest month to fly to London Heathrow Airport from Sioux Falls, with most prices found around $0. If you’re not able to fly to London Heathrow Airport in November, then October is your next best option. Flight prices from Sioux Falls to London Heathrow Airport during October average around $0.

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 round-trip 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

Fastest flight time

13h 20m

Direct flights

None
The fastest flight from Sioux Falls to London Heathrow Airport takes 13h 20m
There are no direct flights from Sioux Falls to London Heathrow Airport. There are no popular flight routes from Sioux Falls to London Heathrow Airport.
Search flight deals

Frequently asked questions about flying from Sioux Falls to London Heathrow Airport

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

    A flight from Sioux Falls Joe Foss Field to London Heathrow will travel around 4190.1 mi. In terms of flight time, this usually takes a little over 13h 20m.

  • 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 refresh daily.

  • How many operators does momondo search for flights from Sioux Falls Joe Foss Field Airport to London Heathrow Airport?

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

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for 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 necessary travel and health documents for your London Heathrow Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

  • What is the most popular airline from Sioux Falls to London Heathrow Airport?

Best airlines flying from Sioux Falls to London Heathrow Airport

Compare and see reviews for airlines that fly from Sioux Falls to London Heathrow Airport with momondo
Airline
Rating
Free Cancellation
Price
United AirlinesPriceFrom $654Free CancellationRating
7.4
9,859 reviews
Search United Airlines flights
American AirlinesPriceFrom $658Free CancellationRating
7.1
11,686 reviews
Search American Airlines flights

Traveling to a place near London?

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Stansted
Stratford-upon-Avon
Harrow
Slough
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Watford
Cobham
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Ilford
Folkestone
Uxbridge

Why use momondo?

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

It is quick and easy to find Sioux Falls to London flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to London that suits you.

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

Yes. momondo allows you to filter the results for Sioux Falls to London flights to just show those with flexible booking policies.

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?

Price alerts on flights to London from Sioux Falls are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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