How long is the flight from Sioux Falls to London?

Delta, United Airlines, and KLM can get you from Sioux Falls to London in just under 11h 08m. Your travel time can differ by up to 6h 47m. There are 4189 mi between Sioux Falls and London. Both multi-stop and nonstop flights can be found to your destination and back.

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

Our cheapest airline available from Sioux Falls to London is Delta. Our recent data shows that you can find tickets from as low as $679 on this airline. An additional option worth looking into is American Airlines, starting at $750. Delta is currently priced 36% below the average price you’ll pay for this route.

What are the cheapest airlines to fly from Sioux Falls to London one-way?

For one-way options, check prices for Lufthansa. According to our data, you can fly for as low as $445. Users have also found prices from $446 and $458 on United Airlines and KLM, respectively.

What is the cheapest day to fly from Sioux Falls to London?

Travelers seeking maximum savings on their Sioux Falls to London flight should consider departing on Tuesday at noon when fares are most often at their lowest. Thursday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

In terms of precipitation, rainfall in London 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 when rainfall is around 1.6 in.

If weather is an important factor for your trip to London, 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 are the most popular routes from Sioux Falls to London?

Most travelers choose Sioux Falls Joe Foss Field - London Heathrow, Sioux Falls Joe Foss Field - London City or Sioux Falls Joe Foss Field - London Gatwick when deciding on the best route from Sioux Falls to London.

What is the cheapest day to fly round-trip from Sioux Falls to London?

Friday flights are generally found to be more expensive for flights from Sioux Falls to London. This shouldn’t discourage you from searching, as you can still find great deals by being flexible with your options. Use our search form to find deals on tickets to London.

What is the cheapest month to fly from Sioux Falls to London?

March can be a great time to fly to London from Sioux Falls with a flight ticket averaging about $1,070. Cheapflights users have found deals in the month of March for as cheap as $689. The most expensive prices can be found in the month of January.

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

For a flight from Sioux Falls to London, you will be flying from Joe Foss Field. Sioux Falls Joe Foss Field (FSD) is just 2.6 mi from the center of the city. Joe Foss Field is the only Sioux Falls airport and it handles 0 outbound flights to London per day. 2 airlines have flights to London from Sioux Falls Joe Foss Field on a regular basis.

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

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

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

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

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

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

$429+ Flights from Sioux Falls to London

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Cheap flight deals from Sioux Falls to London

Round-trip from	$635 (Delta)
One-way from	$429 (Kiwi.com)
Popular in	January
Cheapest in	March
Average price	$1,152

From Sioux Falls Joe Foss Field to London (LON)

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One-way flight from Sioux Falls Joe Foss Field to London (LON)

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Highest demand for flights based on searches. 21% potential increase in price ($293 potential increase over avg. RT price).

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Cheapest flight prices on average. 8% potential price decrease ($85 potential savings vs. average RT price).

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Average for round-trip flights in September 2025

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Find flight deals from Sioux Falls to London

Cheapest flights from Sioux Falls to London
Explore the most affordable flight options available from Sioux Falls to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 11, 2025.

Tue 10/710:56 amFSD - LHR

1 stop20h 14mDelta

Fri 10/178:25 pmLHR - FSD

2 stops22h 30mDelta

Deal found 9/9

$635

Wed 10/111:52 amFSD - LHR

1 stop18h 28mUnited Airlines

Wed 10/82:05 pmLHR - FSD

2 stops30h 32mUnited Airlines

Deal found 9/10

$680

Mon 10/63:12 pmFSD - LHR

2 stops13h 28mUnited Airlines

Tue 10/148:30 amLHR - FSD

2 stops17h 51mUnited Airlines

Deal found 9/10

$707

Sat 10/251:35 pmFSD - LHR

1 stop12h 30mKLM

Sat 11/18:55 amLHR - FSD

1 stop19h 01mKLM

Deal found 9/10

$731

Sat 10/251:35 pmFSD - LHR

2 stops14h 25mVirgin Atlantic

Sat 11/19:40 amLHR - FSD

2 stops14h 39mVirgin Atlantic

Deal found 9/10

$735

Thu 11/208:00 amFSD - LHR

2 stops16h 40mUnited Airlines

Mon 11/244:40 pmLHR - FSD

2 stops30h 57mUnited Airlines

Deal found 9/9

$777

Sat 10/2511:19 amFSD - LCY

2 stops20h 21mMultiple Airlines

Sat 11/112:20 pmLCY - FSD

2 stops39h 26mMultiple Airlines

Deal found 9/10

$799

Thu 11/205:05 amFSD - LHR

1 stop19h 20mDelta

Mon 11/2412:30 pmLHR - FSD

1 stop16h 41mDelta

Deal found 9/9

$880

Thu 11/201:30 pmFSD - LCY

2 stops12h 40mKLM

Mon 11/248:40 amLCY - FSD

2 stops16h 55mKLM

Deal found 9/9

$1,080

Mon 11/2412:39 pmFSD - LGW

2 stops16h 11mIberia

Tue 11/257:40 pmLGW - FSD

2 stops34h 19mIberia

Deal found 9/9

$1,784

Best flights from Sioux Falls to London
Discover carefully curated flight deals from Sioux Falls to London that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 11, 2025.

Tue 10/71:35 pmFSD - LHR

2 stops17h 55mDelta

Fri 10/178:25 pmLHR - FSD

2 stops22h 30mDelta

Deal found 9/9

$635

Mon 10/63:12 pmFSD - LHR

1 stop11h 08mUnited Airlines

Tue 10/142:05 pmLHR - FSD

2 stops30h 32mUnited Airlines

Deal found 9/10

$680

Sat 10/2511:19 amFSD - LCY

2 stops20h 21mMultiple Airlines

Sat 11/112:20 pmLCY - FSD

2 stops39h 26mMultiple Airlines

Deal found 9/10

$799

Thu 11/201:30 pmFSD - LCY

2 stops12h 40mKLM

Mon 11/248:40 amLCY - FSD

2 stops16h 55mKLM

Deal found 9/9

$1,080

Wed 10/111:52 amFSD - LHR

1 stop18h 28mUnited Airlines

Wed 10/82:05 pmLHR - FSD

2 stops30h 32mUnited Airlines

Deal found 9/10

$680

Tue 10/78:00 amFSD - LHR

1 stop16h 20mUnited Airlines

Fri 10/172:10 pmLHR - FSD

1 stop14h 12mUnited Airlines

Deal found 9/9

$702

Mon 11/2412:39 pmFSD - LGW

2 stops16h 11mIberia

Tue 11/257:40 pmLGW - FSD

2 stops34h 19mIberia

Deal found 9/9

$1,784

Last-minute flights from Sioux Falls to London
Discover last-minute flight deals from Sioux Falls to London. Data last updated September 11, 2025 and is based on user searches.

Wed 10/111:52 amFSD - LHR

1 stop18h 28mUnited Airlines

Wed 10/82:05 pmLHR - FSD

2 stops30h 32mUnited Airlines

Deal found 9/10

$680

Mon 10/63:12 pmFSD - LHR

2 stops13h 28mUnited Airlines

Tue 10/148:30 amLHR - FSD

2 stops17h 51mUnited Airlines

Deal found 9/10

$707

Tue 10/710:56 amFSD - LHR

1 stop20h 14mDelta

Fri 10/178:25 pmLHR - FSD

2 stops22h 30mDelta

Deal found 9/10

$635

Sat 10/251:35 pmFSD - LHR

1 stop12h 30mKLM

Sat 11/18:55 amLHR - FSD

1 stop19h 01mKLM

Deal found 9/10

$731

Sat 10/251:35 pmFSD - LHR

2 stops14h 25mVirgin Atlantic

Sat 11/19:40 amLHR - FSD

2 stops14h 39mVirgin Atlantic

Deal found 9/10

$735

Sat 10/2511:19 amFSD - LCY

2 stops20h 21mMultiple Airlines

Sat 11/112:20 pmLCY - FSD

2 stops39h 26mMultiple Airlines

Deal found 9/10

$799

One-way flights from Sioux Falls to London
Search for one-way flight options from Sioux Falls to London. Find affordable one-way fares based on user searches. Data last updated September 11, 2025.

Wed 2/258:16 pmFSD - LHR

2 stops34h 34mMultiple Airlines

Deal found 9/9

$429

Wed 2/2511:20 amFSD - LHR

1 stop14h 35mLufthansa

Deal found 9/9

$445

Sat 2/289:14 amFSD - LHR

2 stops44h 36mUnited Airlines

Deal found 9/9

$446

Sat 2/284:09 pmFSD - LHR

1 stop32h 56mKLM

Deal found 9/9

$458

Wed 2/256:20 pmFSD - LCY

2 stops16h 20mLufthansa

Deal found 9/9

$505

Sat 2/2812:02 pmFSD - LHR

3 stops42h 48mMultiple Airlines

Deal found 9/9

$543

Wed 12/177:00 amFSD - LHR

1 stop21h 25mIberia

Deal found 9/10

$2,240

Wed 12/171:30 pmFSD - LHR

2 stops41h 20mWestJet

Deal found 9/10

$2,241

Wed 12/171:55 pmFSD - LCY

2 stops20h 45mLufthansa

Deal found 9/10

$2,355

Wed 12/1710:43 amFSD - LGW

2 stops18h 07mIberia

Deal found 9/10

$3,113

Wed 12/1710:43 amFSD - LHR

3 stops44h 07mMultiple Airlines

Deal found 9/10

$3,768

Wed 12/1710:43 amFSD - LGW

3 stops41h 02mMultiple Airlines

Deal found 9/10

$4,947

Cheapflights Fare Finder

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

Sioux FallsLondon

FSD - LHR

FSDLHR

Sioux Falls Joe Foss Field

Tue 10/7

1:35 pm-1:30 pm

2 stops17h 55m

London Heathrow

Fri 10/17

8:25 pm-12:55 pm

2 stops22h 30m

$635

Sioux FallsLondon

FSD - LHR

FSDLHR

Sioux Falls Joe Foss Field

Mon 10/6

3:12 pm-8:20 am

1 stop11h 08m

London Heathrow

Tue 10/14

2:05 pm-2:37 pm

2 stops30h 32m

$680

Sioux FallsLondon

FSD - LHR

FSDLHR

Sioux Falls Joe Foss Field

Wed 10/1

11:52 am-12:20 pm

1 stop18h 28m

London Heathrow

Wed 10/8

2:05 pm-2:37 pm

2 stops30h 32m

$680

Sioux FallsLondon

FSD - LHR

FSDLHR

Sioux Falls Joe Foss Field

Tue 10/7

8:00 am-6:20 am

1 stop16h 20m

London Heathrow

Fri 10/17

2:10 pm-10:22 pm

1 stop14h 12m

$702

Sioux FallsLondon

FSD - LCY

FSDLCY

Sioux Falls Joe Foss Field

Sat 10/25

11:19 am-1:40 pm

2 stops20h 21m

London City

Sat 11/1

12:20 pm-10:46 pm

2 stops39h 26m

$799

Sioux FallsLondon

FSD - LCY

FSDLCY

Sioux Falls Joe Foss Field

Thu 11/20

1:30 pm-8:10 am

2 stops12h 40m

London City

Mon 11/24

8:40 am-7:35 pm

2 stops16h 55m

$1,080

Sioux FallsLondon

FSD - LGW

FSDLGW

Sioux Falls Joe Foss Field

Mon 11/24

12:39 pm-10:50 am

2 stops16h 11m

London Gatwick

Tue 11/25

7:40 pm-11:59 pm

2 stops34h 19m

$1,784

Sioux FallsLondon

FSD - LHR

FSDLHR

Sioux Falls Joe Foss Field

Wed 2/25

8:16 pm-12:50 pm

2 stops34h 34m

$429

Sioux FallsLondon

FSD - LHR

FSDLHR

Sioux Falls Joe Foss Field

Wed 2/25

11:20 am-7:55 am

1 stop14h 35m

$445

Sioux FallsLondon

FSD - LHR

FSDLHR

Sioux Falls Joe Foss Field

Sat 2/28

9:14 am-11:50 am

2 stops44h 36m

$446

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/9

Showing 1-10 of 19 results

Best time to book a flight from Sioux Falls to London

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

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.

Cheapflights Insights

Everything you need to know about your flight from Sioux Falls to London

What is the cheapest month to book a flight from Sioux Falls to London?

Currently, November is the cheapest month in which you can book a flight from Sioux Falls to London (average of $661). Flying from Sioux Falls to London in June is currently the most expensive (average of $1,098). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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

One of the essential ways to save on airfare from Sioux Falls to London is to remain as flexible as possible. Flights that are in the morning tend to be the most expensive. A flight at noon could potentially save you up to 19% on airfare.

Reviews of airlines servicing London

Read reviews from past customers who have flown United Airlines and American Airlines from Sioux Falls to London. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

United Airlines

7.4

Good

8,937 reviews

Reviews

1 / 20

4.0

Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??

United Airlines

7.4

Good

8,937 reviews

United Airlines

7.4

Good

8,937 reviews

Reviews

1 / 20

4.0

Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??

American Airlines

7.2

Good

10,000 reviews

United Airlines

7.4

Good

8,937 reviews

Reviews

1 / 20

4.0

Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??

Related info for your journey

What airport do you fly from for flights from Sioux Falls to London?
For a flight from Sioux Falls to London, you will be flying from Joe Foss Field. Sioux Falls Joe Foss Field (FSD) is just 2.6 mi from the center of the city. Joe Foss Field is the only Sioux Falls airport and it handles 0 outbound flights to London per day. 2 airlines have flights to London from Sioux Falls Joe Foss Field on a regular basis.
How long is the flight from Sioux Falls to London?
Delta, United Airlines, and KLM can get you from Sioux Falls to London in just under 11h 08m. Your travel time can differ by up to 6h 47m. There are 4189 mi between Sioux Falls and London. Both multi-stop and nonstop flights can be found to your destination and back.
What are the cheapest airlines flying from Sioux Falls to London round-trip?
Our cheapest airline available from Sioux Falls to London is Delta. Our recent data shows that you can find tickets from as low as $679 on this airline. An additional option worth looking into is American Airlines, starting at $750. Delta is currently priced 36% below the average price you’ll pay for this route.
What are the cheapest airlines to fly from Sioux Falls to London one-way?
For one-way options, check prices for Lufthansa. According to our data, you can fly for as low as $445. Users have also found prices from $446 and $458 on United Airlines and KLM, respectively.
What are the most popular routes from Sioux Falls to London?
Most travelers choose Sioux Falls Joe Foss Field - London Heathrow, Sioux Falls Joe Foss Field - London City or Sioux Falls Joe Foss Field - London Gatwick when deciding on the best route from Sioux Falls to London.
Can I find deals for flights from Sioux Falls to London that include hotel bookings?
Yes. In addition to deals on Sioux Falls to London flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Sioux Falls to London?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Sioux Falls to London.
Can I find deals for business class flights from Sioux Falls to London?
Yes. Cheapflights offers flight deals from Sioux Falls to London by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from Sioux Falls to London?
Currently, November is the cheapest month in which you can book a flight from Sioux Falls to London (average of $661). Flying from Sioux Falls to London in June is currently the most expensive (average of $1,098). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Hounslow

Hayes

Thornton Heath

Southend-on-Sea

Harrow

Canterbury

Croydon

Eastleigh

Dartford

Dover

Winchester

Orpington

Gatwick

Borehamwood

Aylesbury

Bedford

Wembley

Folkestone

Chichester

Arundel

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Top 2 airlines flying from Sioux Falls to London

Airline	Cheapest	Average	Flexibility	On-time
Delta	Cheapest$679	Average$872	FlexibilityNo cancel fee	On-timeN/A
American Airlines	Cheapest$750	Average$1,169	FlexibilityNo cancel fee	On-time71%

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$429+ Cheap flights from Sioux Falls (FSD) to London (LON)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 2/25. Fares are subject to change and may not be available on all flights or dates of travel.

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Cheap flight deals from Sioux Falls to London

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Find flight deals from Sioux Falls to London

Cheapest flights from Sioux Falls to LondonExplore the most affordable flight options available from Sioux Falls to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 11, 2025.

Explore the most affordable flight options available from Sioux Falls to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 11, 2025.

Cheapflights Fare Finder

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

Best time to book a flight from Sioux Falls to London

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

Cheapflights Insights

Everything you need to know about your flight from Sioux Falls to London

What is the cheapest month to book a flight from Sioux Falls to London?

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

Find hourly flight availability from Sioux Falls to London. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 11, 2025.

Reviews of airlines servicing London

Read reviews from past customers who have flown United Airlines and American Airlines from Sioux Falls to London. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from Sioux Falls to London. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

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

How long is the flight from Sioux Falls to London?

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

What are the cheapest airlines to fly from Sioux Falls to London one-way?

What are the most popular routes from Sioux Falls to London?

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

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

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

What is the cheapest month to book a flight from Sioux Falls to London?

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Alternative routes for Sioux Falls to London

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Top 2 airlines flying from Sioux Falls to London

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Cheapest flights from Sioux Falls to London
Explore the most affordable flight options available from Sioux Falls to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 11, 2025.