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$311+ 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 10/3. Fares are subject to change and may not be available on all flights or dates of travel.
FSD — LON
ago. 23 — ago. 301
sáb. 8/23
sáb. 8/30
1 adult, Economy
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Cheap flight deals from Sioux Falls to London

Discover tips and strategies to find the most affordable flight options for your journey from Sioux Falls (FSD) to London (LON). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated agosto 18, 2025.

Round-trip from

$641
(Delta)

One-way from

$311
(Kiwi.com)

Popular in

January

Cheapest in

March

Average price

$888
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 ($296 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 August 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 agosto 18, 2025.

This lastminute.com deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure lastminute.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 8/256:04 pmFSD - LHR
1 stop13h 06mVirgin Atlantic
mar. 9/96:15 amLHR - FSD
2 stops23h 31mVirgin Atlantic
Deal found 8/18$594
This Delta deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 10/71:35 pmFSD - LHR
1 stop17h 35mDelta
vie. 10/179:20 amLHR - FSD
1 stop19h 36mDelta
Deal found 8/18$641
This United Airlines deal was found by Cheapflights users on 8/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 9/309:30 amFSD - LHR
1 stop18h 10mUnited Airlines
mar. 10/78:45 amLHR - FSD
2 stops19h 37mUnited Airlines
Deal found 8/16$732
This United Airlines deal was found by Cheapflights users on 8/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 10/73:12 pmFSD - LHR
1 stop14h 33mUnited Airlines
vie. 10/175:40 pmLHR - FSD
2 stops34h 42mUnited Airlines
Deal found 8/17$735
This United Airlines deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 10/15:14 pmFSD - LHR
1 stop13h 06mUnited Airlines
mié. 10/810:50 amLHR - FSD
2 stops17h 32mUnited Airlines
Deal found 8/18$736
This United Airlines deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 10/611:19 amFSD - LHR
1 stop13h 01mUnited Airlines
mar. 10/148:30 amLHR - FSD
2 stops19h 52mUnited Airlines
Deal found 8/18$739
This Virgin Atlantic deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Virgin Atlantic is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 10/171:35 pmFSD - LHR
1 stop17h 35mVirgin Atlantic
sáb. 10/2512:25 pmLHR - FSD
1 stop12h 54mVirgin Atlantic
Deal found 8/18$741
This American Airlines deal was found by Cheapflights users on 8/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 10/15:33 pmFSD - LHR
1 stop14h 52mAmerican Airlines
mié. 10/812:00 pmLHR - FSD
1 stop15h 16mAmerican Airlines
Deal found 8/17$751
This Expedia deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 11/106:23 pmFSD - LCY
2 stops16h 17mLufthansa
lun. 11/176:15 pmLCY - FSD
2 stops32h 16mLufthansa
Deal found 8/18$810
This United Airlines deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 10/28:00 amFSD - LCY
2 stops22h 30mMultiple Airlines
jue. 10/98:45 amLCY - FSD
3 stops19h 37mMultiple Airlines
Deal found 8/18$926
This Expedia deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 10/26:10 pmFSD - LCY
2 stops18h 25mLufthansa
jue. 10/97:10 pmLCY - FSD
2 stops33h 12mLufthansa
Deal found 8/18$948
This Delta deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 10/1710:56 amFSD - LCY
2 stops16h 34mDelta
sáb. 10/2510:00 amLCY - FSD
2 stops15h 19mDelta
Deal found 8/18$974

Cheapflights Fare Finder

 
Customize 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, Cheapflights users made 2,558,603 searches. Data last updated agosto 18, 2025.
Use the filters below to find and compare flights from Sioux Falls to London that are best for you.

Fly from

Sioux Falls

Fly to

London

Route

Depart

Return

Price

Sioux FallsLondon

FSD - LHR

FSDLHR

Sioux Falls Joe Foss Field

mar. 10/7

1:35 pm-1:10 pm

1 stop17h 35m

London Heathrow

vie. 10/17

9:20 am-10:56 pm

1 stop19h 36m

$641

Sioux FallsLondon

FSD - LHR

FSDLHR

Sioux Falls Joe Foss Field

mié. 1/7

7:45 am-11:15 am

1 stop21h 30m

London Heathrow

mié. 1/14

9:00 am-9:47 pm

2 stops18h 47m

$732

Sioux FallsLondon

FSD - LHR

FSDLHR

Sioux Falls Joe Foss Field

mar. 9/30

9:30 am-9:40 am

1 stop18h 10m

London Heathrow

mar. 10/7

8:45 am-10:22 pm

2 stops19h 37m

$732

Sioux FallsLondon

FSD - LHR

FSDLHR

Sioux Falls Joe Foss Field

mar. 10/7

3:12 pm-11:45 am

1 stop14h 33m

London Heathrow

vie. 10/17

5:40 pm-10:22 pm

2 stops34h 42m

$735

Sioux FallsLondon

FSD - LHR

FSDLHR

Sioux Falls Joe Foss Field

mié. 10/1

5:14 pm-12:20 pm

1 stop13h 06m

London Heathrow

mié. 10/8

7:25 am-5:27 pm

2 stops16h 02m

$736

Sioux FallsLondon

FSD - LCY

FSDLCY

Sioux Falls Joe Foss Field

lun. 11/10

6:23 pm-4:40 pm

2 stops16h 17m

London City

lun. 11/17

6:15 pm-8:31 pm

2 stops32h 16m

$810

Sioux FallsLondon

FSD - LCY

FSDLCY

Sioux Falls Joe Foss Field

mié. 1/7

3:16 pm-5:40 pm

2 stops20h 24m

London City

jue. 1/15

6:15 pm-9:47 pm

2 stops33h 32m

$818

Sioux FallsLondon

FSD - LCY

FSDLCY

Sioux Falls Joe Foss Field

mar. 1/6

3:16 pm-9:05 am

2 stops35h 49m

London City

jue. 1/15

6:15 pm-9:47 pm

2 stops33h 32m

$823

Sioux FallsLondon

FSD - LCY

FSDLCY

Sioux Falls Joe Foss Field

jue. 1/8

1:20 pm-8:10 am

2 stops12h 50m

London City

mar. 1/13

8:40 am-7:18 pm

2 stops16h 38m

$887

Sioux FallsLondon

FSD - LCY

FSDLCY

Sioux Falls Joe Foss Field

jue. 1/8

1:20 pm-8:10 am

2 stops12h 50m

London City

mié. 1/14

8:40 am-7:18 pm

2 stops16h 38m

$887

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/16

Showing 1-10 of 27 results
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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 $1,097). 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?

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 agosto 18, 2025.

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

Get insights into the airlines that provide service to London. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to London. Reviews last updated agosto 18, 2025.
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
8,925 reviews

Entertainment

7.1

Food

6.6

Boarding

7.7

Overall

7.4

Crew

8.1

Comfort

7.3

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
8,925 reviews
United Airlines
7.4
Good
8,925 reviews

Entertainment

7.1

Food

6.6

Boarding

7.7

Overall

7.4

Crew

8.1

Comfort

7.3

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
8,925 reviews

Entertainment

7.1

Food

6.6

Boarding

7.7

Overall

7.4

Crew

8.1

Comfort

7.3

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

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?

    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 Lufthansa can get you from Sioux Falls to London in just under 16h 17m. Your travel time can differ by up to 5h 13m. There are 4205 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 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 $1,097). 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

Traveling to a place near London?

Book flights to London if you plan to visit one of these locations
Hounslow
Hayes
Thornton Heath
Harrow
Canterbury
Dartford
Dover
Orpington
Watford
Gatwick
Borehamwood
Aylesbury
Chelmsford
Southend-on-Sea
Folkestone
Chichester
Arundel
Eastbourne
Milton Keynes
Sutton

Browse thousands of different options on Cheapflights for your next trip

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Top 2 airlines flying from Sioux Falls to London

Discover the top 2 airlines that operate flights from Sioux Falls to London. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated agosto 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$679Average$872FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$750Average$1,169FlexibilityNo cancel feeOn-time71%

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