How long is the flight from Sioux Falls to London Heathrow Airport?

For as low as $945, United Airlines can have you in London Heathrow Airport from Sioux Falls in 20h 05m. Sioux Falls and London Heathrow Airport are separated by a distance of 4189 mi. This flight may include one or multiple stops.

What are the cheapest airlines flying from Sioux Falls to London Heathrow Airport round-trip?

Cheapflights users have booked flights from Sioux Falls to London Heathrow Airport round-trip from $654. Another airline that can offer you cheap pricing is American Airlines. United Airlines is priced at 32% lower than the current average price of a flight leaving 3 months from now.

In terms of precipitation, rainfall in London Heathrow Airport ranges from 1.6 - 2.8 inches per month. January is typically the wettest month, when rainfall can reach 2.8 in. July is typically the driest time to visit London Heathrow Airport when rainfall is around 1.6 in.

If weather is an important factor for your trip to London Heathrow Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 62.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 39.2 F).

What is the cheapest time of day to fly from FSD to LHR?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Sioux Falls to London Heathrow Airport as you normally would.

Most accurate provider : When it comes to deals on Sioux Falls-London Heathrow Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Sioux Falls-London Heathrow Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Sioux Falls-London Heathrow Airport flight searches over the past month and is updated monthly.

Most trusted provider : When it comes to deals on Sioux Falls-London Heathrow Airport flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Sioux Falls-London Heathrow Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

What airport do you fly from for flights from Sioux Falls to London Heathrow?

Located just 2.6 mi from the city center, Sioux Falls Joe Foss Field is the airport most travelers will use when flying to London Heathrow from Sioux Falls. Booking flights from Joe Foss Field (FSD) to London Heathrow should be relatively easy as there are 0 daily outbound flights to London Heathrow from 2 different airlines.

Can I find deals for flights from Sioux Falls to Heathrow that include hotel bookings?

Yes. In addition to deals on Sioux Falls to Heathrow flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from Sioux Falls to Heathrow?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Sioux Falls to Heathrow.

Can I find deals for business class flights from Sioux Falls to Heathrow?

Yes. Cheapflights offers flight deals from Sioux Falls to Heathrow by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$310+ Cheap Flights from Sioux Falls to London Heathrow Airport

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Cheap flight deals from Sioux Falls to Heathrow

Cheapest

Best

Last-minute

One-way

Cheapest flights from Sioux Falls to Heathrow
Explore the most affordable flight options available from Sioux Falls to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 31, 2026.

Wed 11/43:10 pm -

1 stop10h 45m

Wed 11/189:00 am -

2 stops18h 37m

Deal found 10/26

$972

Thu 12/105:16 am -

1 stop20h 34m

Thu 12/179:50 am -

1 stop15h 24m

Deal found 10/26

$987

Thu 12/1012:59 pm -

2 stops14h 11m

Thu 12/179:50 am -

1 stop15h 24m

Deal found 10/26

$998

Tue 12/156:00 am -

1 stop19h 55m

Tue 12/227:40 am -

1 stop21h 46m

Deal found 10/30

$1,002

Thu 12/108:27 am -

2 stops17h 18m

Thu 12/179:50 am -

1 stop15h 24m

Deal found 10/26

$1,008

Tue 12/293:11 pm -

1 stop32h 44m

Fri 1/86:00 pm -

2 stops34h 21m

Deal found 10/27

$1,019

Fri 12/1111:12 am -

1 stop12h 43m

Fri 12/181:00 pm -

2 stops37h 15m

Deal found 10/26

$1,033

Best flights from Sioux Falls to Heathrow
Discover carefully curated flight deals from Sioux Falls to Heathrow that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 31, 2026.

Mon 3/157:40 am -

2 stops20h 30m

Mon 3/2211:05 am -

2 stops35h 29m

Deal found 10/29

$908

Mon 3/156:45 am -

1 stop20h 05m

Mon 3/226:30 am -

2 stops19h 43m

Deal found 10/30

$945

Mon 3/155:15 am -

1 stop20h 50m

Mon 3/229:50 am -

1 stop16h 23m

Deal found 10/30

$978

Sun 4/1112:29 pm -

1 stop15h 06m

Sun 4/2511:10 am -

1 stop13h 59m

Deal found 10/28

$983

Thu 12/1011:01 am -

2 stops13h 49m

Thu 12/179:50 am -

1 stop15h 24m

Deal found 10/26

$998

Thu 12/105:16 am -

1 stop20h 34m

Thu 12/179:50 am -

1 stop15h 24m

Deal found 10/26

$987

Tue 12/156:00 am -

1 stop19h 55m

Tue 12/227:40 am -

1 stop21h 46m

Deal found 10/30

$1,002

Tue 12/293:11 pm -

1 stop32h 44m

Fri 1/811:35 am -

1 stop18h 09m

Deal found 10/27

$1,035

Last-minute flights from Sioux Falls to Heathrow
Discover last-minute flight deals from Sioux Falls to Heathrow. Data last updated October 31, 2026 and is based on user searches.

Wed 11/43:10 pm -

1 stop10h 45m

Wed 11/189:00 am -

2 stops18h 37m

Deal found 10/26

$972

Wed 11/45:58 pm -

2 stops41h 22m

Wed 11/188:15 am -

3 stops40h 55m

Deal found 10/26

$13,263

Sun 11/88:30 am -

1 stop16h 35m

Thu 11/128:40 am -

2 stops16h 26m

Deal found 10/29

$1,312

Sun 11/86:00 am -

1 stop17h 55m

Thu 11/121:35 pm -

1 stop15h 54m

Deal found 10/29

$1,342

Sun 11/87:48 am -

2 stops16h 42m

Thu 11/121:00 pm -

2 stops16h 29m

Deal found 10/29

$1,354

Mon 11/1611:22 am -

1 stop16h 18m

Wed 11/187:40 am -

1 stop16h 14m

Deal found 10/28

$1,343

One-way flights from Sioux Falls to Heathrow
Search for one-way flight options from Sioux Falls to Heathrow. Find affordable one-way fares based on user searches. Data last updated October 31, 2026.

Sun 1/248:27 pm -

2 stops34h 23m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 10/27

$310

Mon 2/1512:18 pm -

1 stop14h 17m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 10/29

$329

Mon 2/157:20 am -

3 stops22h 00m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 10/29

$535

Mon 11/305:55 am -

1 stop21h 45m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 10/30

$553

Sun 1/247:00 am -

1 stop21h 00m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 10/27

$1,101

Sun 1/2410:55 am -

3 stops43h 55m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 10/27

$1,357

Mon 11/308:31 am -

3 stops18h 49m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 10/30

$2,678

Find flight deals from Sioux Falls to Heathrow

Most accurate provider	FlightHub 3 stars
Most trusted provider	FlightHub 3 stars
Round-trip from	$886 (Expedia)
One-way from	$310 (Kiwi.com)
Popular in	June
Cheapest in	February
Average price	$825

Provider with most accurate pricing for Sioux Falls Joe Foss Field-London Heathrow flight deals.

Search Deals

Provider most trusted by Cheapflights users for Sioux Falls Joe Foss Field-London Heathrow flights.

Search Deals

From Sioux Falls Joe Foss Field to London Heathrow

Search Deals

One-way flight from Sioux Falls Joe Foss Field to London Heathrow

Search Deals

Highest demand for flights based on searches. 15% potential increase in price ($170 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 3% potential price decrease ($34 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in October 2026

Search Deals

Cheapflights Fare Finder

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

Sun 1/24

8:27 pm-12:50 pm

2 stops34h 23m

London Heathrow

Wed 12/31

12:00 am-5:00 pm

Nonstop0h 00m

$310

Sioux FallsLondon

FSD Sioux Falls Joe Foss Field - LHR London Heathrow

FSDLHR

Sioux Falls Joe Foss Field

Mon 2/15

12:18 pm-4:35 pm

2 stops22h 17m

London Heathrow

Wed 12/31

12:00 am-5:00 pm

Nonstop0h 00m

$337

Sioux FallsLondon

FSD Sioux Falls Joe Foss Field - LHR London Heathrow

FSDLHR

Sioux Falls Joe Foss Field

Mon 2/15

7:20 am-11:20 am

3 stops22h 00m

London Heathrow

Wed 12/31

12:00 am-5:00 pm

Nonstop0h 00m

$535

Sioux FallsLondon

FSD Sioux Falls Joe Foss Field - LHR London Heathrow

FSDLHR

Sioux Falls Joe Foss Field

Mon 11/30

5:55 am-9:40 am

1 stop21h 45m

London Heathrow

Wed 12/31

12:00 am-5:00 pm

Nonstop0h 00m

$553

Sioux FallsLondon

FSD Sioux Falls Joe Foss Field - LHR London Heathrow

FSDLHR

Sioux Falls Joe Foss Field

Mon 3/15

7:40 am-9:10 am

2 stops20h 30m

London Heathrow

Mon 3/22

11:05 am-5:34 pm

2 stops35h 29m

$908

Sioux FallsLondon

FSD Sioux Falls Joe Foss Field - LHR London Heathrow

FSDLHR

Sioux Falls Joe Foss Field

Mon 3/15

6:45 am-7:50 am

1 stop20h 05m

London Heathrow

Mon 3/22

6:30 am-9:13 pm

2 stops19h 43m

$945

Sioux FallsLondon

FSD Sioux Falls Joe Foss Field - LHR London Heathrow

FSDLHR

Sioux Falls Joe Foss Field

Mon 3/15

5:15 am-7:05 am

1 stop20h 50m

London Heathrow

Mon 3/22

9:50 am-9:13 pm

1 stop16h 23m

$978

Sioux FallsLondon

FSD Sioux Falls Joe Foss Field - LHR London Heathrow

FSDLHR

Sioux Falls Joe Foss Field

Sun 4/11

12:29 pm-9:35 am

1 stop15h 06m

London Heathrow

Sun 4/25

11:10 am-7:09 pm

1 stop13h 59m

$983

Sioux FallsLondon

FSD Sioux Falls Joe Foss Field - LHR London Heathrow

FSDLHR

Sioux Falls Joe Foss Field

Thu 12/10

5:16 am-7:50 am

1 stop20h 34m

London Heathrow

Thu 12/17

9:50 am-7:14 pm

1 stop15h 24m

$987

Sioux FallsLondon

FSD Sioux Falls Joe Foss Field - LHR London Heathrow

FSDLHR

Sioux Falls Joe Foss Field

Thu 12/10

11:01 am-6:50 am

2 stops13h 49m

London Heathrow

Thu 12/17

9:50 am-7:14 pm

1 stop15h 24m

$998

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/27

Showing 1-10 of 14 resultsSorted by cheapest first

Compare providers for flights from Sioux Falls to Heathrow

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Sioux Falls to Heathrow in October.

Provider	Price Accuracy	Trust Score*
Expedia	Price Accuracy1 star	Trust Score*3 stars
FlightHub	Price Accuracy3 stars	Trust Score*3 stars
Ovago	Price Accuracy3 stars	Trust Score*3 stars
AranGrant	Price Accuracy3 stars	Trust Score*3 stars
eDreams	Price Accuracy2 stars	Trust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

Most accurate provider: When it comes to deals on Sioux Falls-London Heathrow Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Sioux Falls-London Heathrow Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Sioux Falls-London Heathrow Airport flight searches over the past month and is updated monthly.
Most trusted provider: When it comes to deals on Sioux Falls-London Heathrow Airport flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Sioux Falls-London Heathrow Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Sioux Falls to Heathrow

Have a flexible travel schedule? Discover the best time to fly to Heathrow from Sioux Falls with our price prediction graph.

FSD-LHR

Estimated round-trip price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Reviews of airlines servicing Heathrow

Get a feel of what it's like to fly with United Airlines and American Airlines from Sioux Falls to London Heathrow Airport by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

United Airlines

7.3

Good

10,451 reviews

Reviews

1 / 20

8.0

Excellent

Asha,Sep 2026

LGA - IAH

The flight was on time and boardi g was very organized and timely. Snacks are awful and having one little glass of juice was terrible. Fortunately, I had my water to keep me hydrated.

United Airlines

7.3

Good

10,451 reviews

United Airlines

7.3

Good

10,451 reviews

Reviews

1 / 20

8.0

Excellent

Asha,Sep 2026

LGA - IAH

The flight was on time and boardi g was very organized and timely. Snacks are awful and having one little glass of juice was terrible. Fortunately, I had my water to keep me hydrated.

American Airlines

7.0

Good

12,210 reviews

United Airlines

7.3

Good

10,451 reviews

Reviews

1 / 20

8.0

Excellent

Asha,Sep 2026

LGA - IAH

The flight was on time and boardi g was very organized and timely. Snacks are awful and having one little glass of juice was terrible. Fortunately, I had my water to keep me hydrated.

Related info for your journey

What airport do you fly from for flights from Sioux Falls to London Heathrow?
Located just 2.6 mi from the city center, Sioux Falls Joe Foss Field is the airport most travelers will use when flying to London Heathrow from Sioux Falls. Booking flights from Joe Foss Field (FSD) to London Heathrow should be relatively easy as there are 0 daily outbound flights to London Heathrow from 2 different airlines.
How long is the flight from Sioux Falls to London Heathrow Airport?
For as low as $945, United Airlines can have you in London Heathrow Airport from Sioux Falls in 20h 05m. Sioux Falls and London Heathrow Airport are separated by a distance of 4189 mi. This flight may include one or multiple stops.
What are the cheapest airlines flying from Sioux Falls to London Heathrow Airport round-trip?
Cheapflights users have booked flights from Sioux Falls to London Heathrow Airport round-trip from $654. Another airline that can offer you cheap pricing is American Airlines. United Airlines is priced at 32% lower than the current average price of a flight leaving 3 months from now.
Can I find deals for flights from Sioux Falls to Heathrow that include hotel bookings?
Yes. In addition to deals on Sioux Falls to Heathrow flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Sioux Falls to Heathrow?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Sioux Falls to Heathrow.
Can I find deals for business class flights from Sioux Falls to Heathrow?
Yes. Cheapflights offers flight deals from Sioux Falls to Heathrow by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

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Top 2 airlines flying from Sioux Falls to Heathrow

Airline	Cheapest	Average	Flexibility	On-time
United Airlines	Cheapest$654	Average$990	FlexibilityNo cancel fee	On-time69%
American Airlines	Cheapest$658	Average$987	FlexibilityNo cancel fee	On-time71%

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$310+ Cheap flights from Sioux Falls (FSD) to Heathrow (LHR)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/24. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Sioux Falls to Heathrow with Cheapflights

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Cheap flight deals from Sioux Falls to Heathrow

Cheapest flights from Sioux Falls to HeathrowExplore the most affordable flight options available from Sioux Falls to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 31, 2026.

Explore the most affordable flight options available from Sioux Falls to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 31, 2026.

Best flights from Sioux Falls to HeathrowDiscover carefully curated flight deals from Sioux Falls to Heathrow that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 31, 2026.

Discover carefully curated flight deals from Sioux Falls to Heathrow that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 31, 2026.

Last-minute flights from Sioux Falls to HeathrowDiscover last-minute flight deals from Sioux Falls to Heathrow. Data last updated October 31, 2026 and is based on user searches.

Discover last-minute flight deals from Sioux Falls to Heathrow. Data last updated October 31, 2026 and is based on user searches.

One-way flights from Sioux Falls to HeathrowSearch for one-way flight options from Sioux Falls to Heathrow. Find affordable one-way fares based on user searches. Data last updated October 31, 2026.

Search for one-way flight options from Sioux Falls to Heathrow. Find affordable one-way fares based on user searches. Data last updated October 31, 2026.

Find flight deals from Sioux Falls to Heathrow

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Most trusted provider

Round-trip from

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Popular in

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Cheapflights Fare Finder

Use the filters below to find and compare flights from Sioux Falls to London Heathrow Airport that are best for you.

Compare providers for flights from Sioux Falls to Heathrow

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Sioux Falls to Heathrow in October.

Best time to book a flight from Sioux Falls to Heathrow

Have a flexible travel schedule? Discover the best time to fly to Heathrow from Sioux Falls with our price prediction graph.

Reviews of airlines servicing Heathrow

Get a feel of what it's like to fly with United Airlines and American Airlines from Sioux Falls to London Heathrow Airport by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

What airport do you fly from for flights from Sioux Falls to London Heathrow?

How long is the flight from Sioux Falls to London Heathrow Airport?

What are the cheapest airlines flying from Sioux Falls to London Heathrow Airport round-trip?

Can I find deals for flights from Sioux Falls to Heathrow that include hotel bookings?

How can I find direct flights from Sioux Falls to Heathrow?

Can I find deals for business class flights from Sioux Falls to Heathrow?

Traveling to a place near London Heathrow Airport?

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Sioux Falls to Heathrow

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Complete your trip

Complete your trip to Heathrow by adding a car rental and/or hotel reservation to your travel itinerary.

Search flights from Sioux Falls to Heathrow by cabin class

Find flights from Sioux Falls to Heathrow, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Other flights to Heathrow

Explore flights to Heathrow departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on October 31, 2026.

Sioux Falls and Heathrow flights

Browse other Sioux Falls and Heathrow flight options. Last updated on October 31, 2026.

Other flights from Sioux Falls

Browse through other flights departing from Sioux Falls. Flights are based on user searches made on Cheapflights and were last updated on October 31, 2026.

Popular flight searches

Check out other popular destinations found by fellow travelers in 2026

Top 2 airlines flying from Sioux Falls to Heathrow

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Cheapest flights from Sioux Falls to Heathrow
Explore the most affordable flight options available from Sioux Falls to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 31, 2026.

Best flights from Sioux Falls to Heathrow
Discover carefully curated flight deals from Sioux Falls to Heathrow that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 31, 2026.

Last-minute flights from Sioux Falls to Heathrow
Discover last-minute flight deals from Sioux Falls to Heathrow. Data last updated October 31, 2026 and is based on user searches.

One-way flights from Sioux Falls to Heathrow
Search for one-way flight options from Sioux Falls to Heathrow. Find affordable one-way fares based on user searches. Data last updated October 31, 2026.