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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.
Iberia Logo
12:06 pm - 10:50 amFSD  Sioux Falls Joe Foss Field-LHR London Heathrow
16h 44m1 stop Chicago O'Hare Intl
Iberia Logo
7:50 am - 12:29 amLHR  London Heathrow-FSD Sioux Falls Joe Foss Field
22h 39m2 stops Madrid Barajas Chicago O'Hare Intl
$882Iberia
Tue, Sep 22 - Wed, Sep 30
United Airlines Logo
7:48 am - 7:55 amFSD  Sioux Falls Joe Foss Field-LHR London Heathrow
18h 07m1 stop Chicago O'Hare Intl
United Airlines Logo
6:50 am - 9:37 pmLHR  London Heathrow-FSD Sioux Falls Joe Foss Field
20h 47m2 stops Brussels Bruxelles-National Chicago O'Hare Intl
$885United Airlines
Sun, Nov 1 - Fri, Nov 13
Iberia Logo
6:41 pm - 5:15 pmFSD  Sioux Falls Joe Foss Field-LHR London Heathrow
16h 34m2 stops Chicago O'Hare Intl Madrid Barajas
Iberia Logo
6:15 am - 12:29 amLHR  London Heathrow-FSD Sioux Falls Joe Foss Field
24h 14m2 stops Madrid Barajas Chicago O'Hare Intl
$889Iberia
Tue, Sep 22 - Wed, Sep 30
United Airlines Logo
9:32 am - 7:10 amFSD  Sioux Falls Joe Foss Field-LHR London Heathrow
15h 38m2 stops Denver Intl Montreal Pierre Elliott Trudeau Intl
United Airlines Logo
6:50 am - 5:58 pmLHR  London Heathrow-FSD Sioux Falls Joe Foss Field
17h 08m2 stops Brussels Bruxelles-National Chicago O'Hare Intl
$889United Airlines
Sun, Nov 1 - Fri, Nov 13
American Airlines Logo
5:57 pm - 12:15 pmFSD  Sioux Falls Joe Foss Field-LHR London Heathrow
12h 18m1 stop Dallas/Fort Worth
American Airlines Logo
4:30 pm - 12:39 amLHR  London Heathrow-FSD Sioux Falls Joe Foss Field
14h 09m1 stop Chicago O'Hare Intl
$915American Airlines
Sun, Nov 1 - Fri, Nov 13
KLM Logo
1:05 pm - 1:05 pmFSD  Sioux Falls Joe Foss Field-LHR London Heathrow
18h 00m1 stop Minneapolis St Paul
KLM Logo
12:25 pm - 10:51 pmLHR  London Heathrow-FSD Sioux Falls Joe Foss Field
16h 26m1 stop Minneapolis St Paul
$915KLM
Tue, Sep 22 - Wed, Sep 30
Iberia Logo
7:39 pm - 12:15 pmFSD  Sioux Falls Joe Foss Field-LHR London Heathrow
10h 36m1 stop Chicago O'Hare Intl
Iberia Logo
6:15 am - 12:41 amLHR  London Heathrow-FSD Sioux Falls Joe Foss Field
23h 26m2 stops Madrid Barajas Chicago O'Hare Intl
$932Iberia
Tue, Oct 20 - Sun, Oct 25
United Airlines Logo
1:33 pm - 12:25 pmFSD  Sioux Falls Joe Foss Field-LHR London Heathrow
16h 52m1 stop Denver Intl
United Airlines Logo
6:50 am - 5:56 pmLHR  London Heathrow-FSD Sioux Falls Joe Foss Field
17h 06m2 stops Brussels Bruxelles-National Chicago O'Hare Intl
$935United Airlines
Tue, Sep 22 - Sun, Oct 4
American Airlines Logo
5:59 pm - 2:25 pmFSD  Sioux Falls Joe Foss Field-LHR London Heathrow
14h 26m1 stop Dallas/Fort Worth
American Airlines Logo
12:15 pm - 12:29 amLHR  London Heathrow-FSD Sioux Falls Joe Foss Field
18h 14m1 stop Chicago O'Hare Intl
$966American Airlines
Wed, Sep 16 - Wed, Sep 30
American Airlines Logo
5:59 pm - 12:50 pmFSD  Sioux Falls Joe Foss Field-LHR London Heathrow
12h 51m1 stop Dallas/Fort Worth
American Airlines Logo
11:10 am - 12:29 amLHR  London Heathrow-FSD Sioux Falls Joe Foss Field
19h 19m1 stop Chicago O'Hare Intl
$966American Airlines
Wed, Sep 16 - Tue, Sep 29

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Lufthansa flights from Sioux Falls to London Heathrow Airport

Our best Lufthansa deals on Sioux Falls to London Heathrow Airport flight tickets
Lufthansa
Oct 3
FSD6:31 pmSioux Falls Joe Foss Field
16h 09m
2 stops
LHR4:40 pmLondon Heathrow
Oct 10
LHR6:30 amLondon Heathrow
22h 41m
2 stops
FSD11:11 pmSioux Falls Joe Foss Field
$984
Lufthansa
Aug 27
FSD7:47 amSioux Falls Joe Foss Field
17h 28m
2 stops
LHR7:15 amLondon Heathrow
Sep 9
LHR6:50 amLondon Heathrow
17h 16m
2 stops
FSD6:06 pmSioux Falls Joe Foss Field
$1,090
Lufthansa
Aug 16
FSD6:39 pmSioux Falls Joe Foss Field
17h 01m
2 stops
LHR5:40 pmLondon Heathrow
Aug 22
LHR8:25 pmLondon Heathrow
29h 42m
2 stops
FSD8:07 pmSioux Falls Joe Foss Field
$1,096

Iberia flights from Sioux Falls to London Heathrow Airport

Our best Iberia deals on Sioux Falls to London Heathrow Airport flight tickets
Iberia
Sep 22
FSD12:06 pmSioux Falls Joe Foss Field
16h 44m
1 stop
LHR10:50 amLondon Heathrow
Sep 30
LHR7:50 amLondon Heathrow
22h 39m
2 stops
FSD12:29 amSioux Falls Joe Foss Field
$882
Iberia
Sep 22
FSD6:41 pmSioux Falls Joe Foss Field
16h 34m
2 stops
LHR5:15 pmLondon Heathrow
Sep 30
LHR6:15 amLondon Heathrow
24h 14m
2 stops
FSD12:29 amSioux Falls Joe Foss Field
$889
Iberia
Oct 20
FSD7:39 pmSioux Falls Joe Foss Field
10h 36m
1 stop
LHR12:15 pmLondon Heathrow
Oct 25
LHR6:15 amLondon Heathrow
23h 26m
2 stops
FSD12:41 amSioux Falls Joe Foss Field
$932

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 August 6, 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 Sioux Falls Joe Foss Field - LHR London Heathrow

FSDLHR

Sioux Falls Joe Foss Field

Tue 9/22

12:06 pm-10:50 am

1 stop16h 44m

London Heathrow

Wed 9/30

7:50 am-12:29 am

2 stops22h 39m

$882

Sioux FallsLondon

FSD Sioux Falls Joe Foss Field - LHR London Heathrow

FSDLHR

Sioux Falls Joe Foss Field

Sun 11/1

7:48 am-7:55 am

1 stop18h 07m

London Heathrow

Fri 11/13

6:50 am-9:37 pm

2 stops20h 47m

$885

Sioux FallsLondon

FSD Sioux Falls Joe Foss Field - LHR London Heathrow

FSDLHR

Sioux Falls Joe Foss Field

Tue 9/22

6:41 pm-5:15 pm

2 stops16h 34m

London Heathrow

Wed 9/30

6:15 am-12:29 am

2 stops24h 14m

$889

Sioux FallsLondon

FSD Sioux Falls Joe Foss Field - LHR London Heathrow

FSDLHR

Sioux Falls Joe Foss Field

Sun 11/1

9:32 am-7:10 am

2 stops15h 38m

London Heathrow

Fri 11/13

6:50 am-5:58 pm

2 stops17h 08m

$889
Quickest round-trip

Sioux FallsLondon

FSD Sioux Falls Joe Foss Field - LHR London Heathrow

FSDLHR

Sioux Falls Joe Foss Field

Sun 11/1

5:57 pm-12:15 pm

1 stop12h 18m

London Heathrow

Fri 11/13

4:30 pm-12:39 am

1 stop14h 09m

$915

Sioux FallsLondon

FSD Sioux Falls Joe Foss Field - LHR London Heathrow

FSDLHR

Sioux Falls Joe Foss Field

Tue 9/22

1:05 pm-1:05 pm

1 stop18h 00m

London Heathrow

Wed 9/30

12:25 pm-10:51 pm

1 stop16h 26m

$915

Sioux FallsLondon

FSD Sioux Falls Joe Foss Field - LHR London Heathrow

FSDLHR

Sioux Falls Joe Foss Field

Tue 10/20

7:39 pm-12:15 pm

1 stop10h 36m

London Heathrow

Sun 10/25

6:15 am-12:41 am

2 stops23h 26m

$932

Sioux FallsLondon

FSD Sioux Falls Joe Foss Field - LHR London Heathrow

FSDLHR

Sioux Falls Joe Foss Field

Tue 9/22

1:33 pm-12:25 pm

1 stop16h 52m

London Heathrow

Sun 10/4

6:50 am-5:56 pm

2 stops17h 06m

$935

Sioux FallsLondon

FSD Sioux Falls Joe Foss Field - LHR London Heathrow

FSDLHR

Sioux Falls Joe Foss Field

Wed 9/16

5:59 pm-2:25 pm

1 stop14h 26m

London Heathrow

Wed 9/30

12:15 pm-12:29 am

1 stop18h 14m

$966

Sioux FallsLondon

FSD Sioux Falls Joe Foss Field - LHR London Heathrow

FSDLHR

Sioux Falls Joe Foss Field

Wed 9/16

5:59 pm-12:50 pm

1 stop12h 51m

London Heathrow

Tue 9/29

11:10 am-12:29 am

1 stop19h 19m

$966

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

16h 52m

Direct flights

None
The fastest flight from Sioux Falls to London Heathrow Airport takes 16h 52m
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 16h 52m.

  • 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
10,072 reviews
Search United Airlines flights
American AirlinesPriceFrom $658Free CancellationRating
7.1
11,866 reviews
Search American Airlines flights

Traveling to a place near London?

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Gatwick
Milton Keynes
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Kingston upon Thames
Slough
Harrow
Watford
Cobham
Richmond
Uxbridge
Worthing
Romford
Ilford

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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