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$224+ Cheap flights from Sioux Falls (FSD) to Heathrow (LHR)

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 4/20. Fares are subject to change and may not be available on all flights or dates of travel.
FSD — LHR
Jan 3 — Jan 101
Sat 1/3
Sat 1/10
1 adult, Economy
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Cheap flight deals from Sioux Falls to Heathrow

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 December 4, 2025.

This Kiwi.com deal was found by Cheapflights users on 12/2. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/911:20 amFSD - LHR
1 stop12h 35mLufthansa
Tue 12/1610:25 amLHR - FSD
1 stop13h 08mLufthansa
Deal found 12/2$596
This Virgin Atlantic deal was found by Cheapflights users on 12/2. 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.
Tue 12/95:05 amFSD - LHR
1 stop21h 55mVirgin Atlantic
Tue 12/161:05 pmLHR - FSD
2 stops16h 07mVirgin Atlantic
Deal found 12/2$602
This United Airlines deal was found by Cheapflights users on 12/3. 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.
Sun 12/148:00 amFSD - LHR
1 stop21h 15mUnited Airlines
Sat 12/277:40 amLHR - FSD
1 stop15h 50mUnited Airlines
Deal found 12/3$743
This United Airlines deal was found by Cheapflights users on 12/3. 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.
Sat 12/133:15 pmFSD - LHR
1 stop32h 40mUnited Airlines
Sat 12/277:40 amLHR - FSD
1 stop15h 50mUnited Airlines
Deal found 12/3$748
This Cheapflightsfares deal was found by Cheapflights users on 12/2. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/31:55 pmFSD - LHR
1 stop13h 45mLufthansa
Wed 12/107:30 amLHR - FSD
2 stops18h 51mLufthansa
Deal found 12/2$760
This KAYAK deal was found by Cheapflights users on 12/3. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/131:55 pmFSD - LHR
2 stops34h 00mLufthansa
Sat 12/277:40 amLHR - FSD
1 stop15h 50mLufthansa
Deal found 12/3$768
This United Airlines deal was found by Cheapflights users on 12/3. 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.
Wed 12/36:08 pmFSD - LHR
2 stops16h 42mUnited Airlines
Wed 12/106:35 amLHR - FSD
2 stops21h 16mUnited Airlines
Deal found 12/3$814
This United Airlines deal was found by Cheapflights users on 12/3. 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.
Mon 12/158:00 amFSD - LHR
1 stop17h 55mUnited Airlines
Sat 12/277:40 amLHR - FSD
1 stop15h 50mUnited Airlines
Deal found 12/3$818
This KLM deal was found by Cheapflights users on 12/2. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/35:05 amFSD - LHR
1 stop21h 55mKLM
Wed 12/1011:05 amLHR - FSD
1 stop14h 35mKLM
Deal found 12/2$825

Find flight deals from Sioux Falls to Heathrow

Discover tips and strategies to find the most affordable flight options for your journey from Sioux Falls (FSD) to Heathrow (LHR). 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 December 4, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$560
(Kiwi.com)

One-way from

$224
(KLM)

Popular in

June

Cheapest in

August

Average price

$1,216
Provider with most accurate pricing for Sioux Falls Joe Foss Field-London Heathrow flight deals.
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Provider most trusted by Cheapflights users for Sioux Falls Joe Foss Field-London Heathrow flights.
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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. 27% potential increase in price ($380 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease ($59 potential savings vs. average RT price).
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Average for round-trip flights in December 2025
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Cheapflights Fare Finder

 
Customize your flight search to find flights from Sioux Falls to Heathrow 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 December 4, 2025.
Use the filters below to find and compare flights from Sioux Falls to London Heathrow Airport that are best for you.

Fly from

Sioux Falls

Fly to

Heathrow

Route

Depart

Return

Price

Sioux FallsLondon

FSD - LHR

FSDLHR

Sioux Falls Joe Foss Field

Fri 1/16

11:22 am-7:55 am

1 stop14h 33m

London Heathrow

Fri 1/23

7:25 am-8:24 pm

2 stops18h 59m

$588

Sioux FallsLondon

FSD - LHR

FSDLHR

Sioux Falls Joe Foss Field

Tue 12/9

11:20 am-5:55 am

1 stop12h 35m

London Heathrow

Tue 12/16

10:25 am-5:33 pm

1 stop13h 08m

$596

Sioux FallsLondon

FSD - LHR

FSDLHR

Sioux Falls Joe Foss Field

Sat 1/31

3:11 pm-3:50 pm

2 stops18h 39m

London Heathrow

Sat 2/7

7:30 am-9:50 pm

2 stops20h 20m

$612

Sioux FallsLondon

FSD - LHR

FSDLHR

Sioux Falls Joe Foss Field

Fri 1/30

11:22 am-11:15 am

1 stop17h 53m

London Heathrow

Tue 2/3

6:50 am-10:47 am

2 stops33h 57m

$626

Sioux FallsLondon

FSD - LHR

FSDLHR

Sioux Falls Joe Foss Field

Sat 1/31

12:19 pm-11:35 am

1 stop17h 16m

London Heathrow

Sat 2/7

11:00 am-9:35 pm

1 stop16h 35m

$655

Sioux FallsLondon

FSD - LHR

FSDLHR

Sioux Falls Joe Foss Field

Sun 12/14

8:00 am-11:15 am

1 stop21h 15m

London Heathrow

Sat 12/27

7:40 am-5:30 pm

1 stop15h 50m

$743

Sioux FallsLondon

FSD - LHR

FSDLHR

Sioux Falls Joe Foss Field

Mon 12/15

8:00 am-7:10 am

2 stops17h 10m

London Heathrow

Sat 12/27

7:40 am-2:27 pm

1 stop12h 47m

$746

Sioux FallsLondon

FSD - LHR

FSDLHR

Sioux Falls Joe Foss Field

Tue 12/9

8:00 am-9:40 am

2 stops19h 40m

London Heathrow

Tue 12/16

7:25 am-2:40 pm

1 stop13h 15m

$825

Sioux FallsLondon

FSD - LHR

FSDLHR

Sioux Falls Joe Foss Field

Mon 4/20

1:20 pm-1:30 pm

2 stops18h 10m

$224

Sioux FallsLondon

FSD - LHR

FSDLHR

Sioux Falls Joe Foss Field

Mon 4/20

12:30 pm-7:20 am

1 stop12h 50m

$224

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/2

Showing 1-10 of 12 results
1
2

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 December.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust 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 eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Sioux Falls-London Heathrow Airport flight deals on Cheapflights vs. eDreams >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 eDreams the most. eDreams 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.
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 Heathrow Airport

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

Currently, March is the cheapest month in which you can book a flight from Sioux Falls to London Heathrow Airport (average of $602). Flying from Sioux Falls to London Heathrow Airport in May is currently the most expensive (average of $1,128). 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 LHR?

Find hourly flight availability from Sioux Falls to Heathrow. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 4, 2025.

It’s optimal to fly from Sioux Falls to London Heathrow Airport in the afternoon. By choosing this option you can save up to 75% on the cost of your flight, compared to a flight in the evening.

How much does it cost to fly round-trip from Sioux Falls to London Heathrow Airport?

Reviews of airlines servicing Heathrow

Get insights into the airlines that provide service to Heathrow. 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 Heathrow. Reviews last updated December 4, 2025.
Get a feel of what it's like to fly with 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.
American Airlines
7.2
Good
11,047 reviews

Crew

8.0

Overall

7.2

Comfort

7.2

Food

6.5

Entertainment

6.9

Boarding

7.5

Reviews

1 / 20
4.0
Okay

Cameron,Nov 2025

PDX - LHR

The plane was very old...had no WiFi available. The crew were not friendly nor helpful.
American Airlines
7.2
Good
11,047 reviews
American Airlines
7.2
Good
11,047 reviews

Crew

8.0

Overall

7.2

Comfort

7.2

Food

6.5

Entertainment

6.9

Boarding

7.5

Reviews

1 / 20
4.0
Okay

Cameron,Nov 2025

PDX - LHR

The plane was very old...had no WiFi available. The crew were not friendly nor helpful.

Related info for your journey

Find useful and relevant information for your journey from Sioux Falls to Heathrow. 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 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 1 airline.

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

    For as low as $588, Lufthansa can have you in London Heathrow Airport from Sioux Falls in 14h 33m. Sioux Falls and London Heathrow Airport are separated by a distance of 4189 mi. This flight may include one or multiple stops.

  • What is the cheapest airline to fly from Sioux Falls to London Heathrow Airport round-trip?

    Cheapflights users have booked flights from Sioux Falls to London Heathrow Airport round-trip from $750. American Airlines is priced at 24% 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.

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

    Currently, March is the cheapest month in which you can book a flight from Sioux Falls to London Heathrow Airport (average of $602). Flying from Sioux Falls to London Heathrow Airport in May is currently the most expensive (average of $1,128). 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 Heathrow Airport?

Book flights to London Heathrow Airport if you plan to visit one of these locations
Ilford
Hounslow
Hayes
Southend-on-Sea
Harrow
Eastleigh
Dartford
Dover
Winchester
Croydon
Orpington
Northampton
Watford
Borehamwood
Broadway
Aylesbury
Chipping Norton
Kingston upon Thames
Wembley
Folkestone

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Sioux Falls to Heathrow

See prices for flight routes from nearby airports that may be better suited for you.
Sioux Falls to London City flights
Sioux Falls to Gatwick flights
Rapid City to London City flights
Rapid City to Heathrow flights

Top airline flying from Sioux Falls to Heathrow

Discover the top airline that operate flights from Sioux Falls to Heathrow. 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 December 4, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$750Average$1,115FlexibilityNo cancel feeOn-time71%

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