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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 4/28. Fares are subject to change and may not be available on all flights or dates of travel.
FSD — LHR
Feb 18 — Feb 251
Wed 2/18
Wed 2/25
1 adult, Economy
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Cheap 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 January 19, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

Expedia
3 stars

Round-trip from

$580
(Expedia)

One-way from

$224
(British Airways)

Popular in

June

Cheapest in

February

Average price

$771
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
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One-way flight from Sioux Falls Joe Foss Field to London Heathrow
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Highest demand for flights based on searches. 26% potential increase in price ($334 potential increase over avg. RT price).
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Cheapest flight prices on average. 7% potential price decrease ($66 potential savings vs. average RT price).
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Average for round-trip flights in January 2026
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Find 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 January 19, 2026.

This Expedia deal was found by Cheapflights users on 1/18. 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.
Tue 3/312:14 pm
FSD
-
LHR
1 stop14h 01m
Iberia
Tue 3/106:05 am
LHR
-
FSD
2 stops21h 50m
Iberia
Deal found 1/18$580
This American Airlines deal was found by Cheapflights users on 1/17. 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.
Tue 3/32:08 pm
FSD
-
LHR
1 stop10h 47m
American Airlines
Tue 3/108:20 am
LHR
-
FSD
1 stop18h 20m
American Airlines
Deal found 1/17$601
This British Airways deal was found by Cheapflights users on 1/18. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/32:08 pm
FSD
-
LHR
1 stop10h 47m
Multiple Airlines
Tue 3/1011:00 am
LHR
-
FSD
1 stop13h 10m
Multiple Airlines
Deal found 1/18$608
This Finnair deal was found by Cheapflights users on 1/18. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/612:31 pm
FSD
-
LHR
1 stop12h 19m
Multiple Airlines
Fri 10/1612:55 pm
LHR
-
FSD
1 stop14h 04m
Multiple Airlines
Deal found 1/18$624
This United Airlines deal was found by Cheapflights users on 1/18. 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.
Thu 3/59:00 am
FSD
-
LHR
1 stop18h 40m
United Airlines
Thu 3/126:35 am
LHR
-
FSD
2 stops20h 27m
United Airlines
Deal found 1/18$630
This Delta deal was found by Cheapflights users on 1/18. 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.
Thu 3/510:55 am
FSD
-
LHR
2 stops15h 50m
Delta
Thu 3/128:40 am
LHR
-
FSD
2 stops15h 40m
Delta
Deal found 1/18$635
This United Airlines deal was found by Cheapflights users on 1/16. 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.
Tue 3/1711:21 am
FSD
-
LHR
1 stop13h 34m
United Airlines
Tue 3/246:00 pm
LHR
-
FSD
2 stops31h 40m
United Airlines
Deal found 1/16$643
This United Airlines deal was found by Cheapflights users on 1/19. 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.
Fri 5/14:57 pm
FSD
-
LHR
2 stops35h 03m
United Airlines
Mon 5/47:30 am
LHR
-
FSD
2 stops20h 17m
United Airlines
Deal found 1/19$649

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 January 19, 2026.
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

Tue 3/3

12:14 pm-8:15 am

1 stop14h 01m

London Heathrow

Tue 3/10

6:05 am-10:55 pm

2 stops21h 50m

$580

Sioux FallsLondon

FSD - LHR

FSDLHR

Sioux Falls Joe Foss Field

Tue 3/3

2:08 pm-6:55 am

1 stop10h 47m

London Heathrow

Tue 3/10

11:00 am-7:10 pm

1 stop13h 10m

$608

Sioux FallsLondon

FSD - LHR

FSDLHR

Sioux Falls Joe Foss Field

Thu 3/5

9:00 am-9:40 am

1 stop18h 40m

London Heathrow

Thu 3/12

6:35 am-10:02 pm

2 stops20h 27m

$630

Sioux FallsLondon

FSD - LHR

FSDLHR

Sioux Falls Joe Foss Field

Thu 3/5

10:55 am-8:45 am

2 stops15h 50m

London Heathrow

Thu 3/12

8:40 am-7:20 pm

2 stops15h 40m

$635

Sioux FallsLondon

FSD - LHR

FSDLHR

Sioux Falls Joe Foss Field

Tue 3/17

11:21 am-5:55 am

1 stop13h 34m

London Heathrow

Tue 3/24

6:00 pm-8:40 pm

2 stops31h 40m

$643

Sioux FallsLondon

FSD - LHR

FSDLHR

Sioux Falls Joe Foss Field

Tue 4/28

12:12 pm-6:50 am

1 stop12h 38m

$224

Sioux FallsLondon

FSD - LHR

FSDLHR

Sioux Falls Joe Foss Field

Tue 4/28

9:05 am-8:20 am

2 stops17h 15m

$224

Sioux FallsLondon

FSD - LHR

FSDLHR

Sioux Falls Joe Foss Field

Fri 6/12

9:14 am-10:00 am

2 stops18h 46m

$526

Sioux FallsLondon

FSD - LHR

FSDLHR

Sioux Falls Joe Foss Field

Fri 6/12

5:33 pm-11:15 am

1 stop11h 42m

$537

Sioux FallsLondon

FSD - LHR

FSDLHR

Sioux Falls Joe Foss Field

Fri 6/12

9:57 am-11:55 am

3 stops43h 58m

$697

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/18

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 January.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star

*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 Expedia the most. Expedia 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 June is currently the most expensive (average of $1,081). 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.

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 January 19, 2026.
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
11,160 reviews

Comfort

7.2

Entertainment

6.9

Boarding

7.5

Food

6.4

Overall

7.2

Crew

8.0

Reviews

1 / 20
2.0
Mediocre

Susie,Jan 2026

CLT - TPA

This flight was delayed 3 or 4 times. We had boarded the plane, sat on plane for a good 30 minutes, then we had to board the aircraft, walk to a different gate, wait and then board another aircraft. We arrived in Tampa 4 hours later than the original booking. I feel there should have been some sort of compensation especially for the advantage members.
American Airlines
7.2
Good
11,160 reviews
American Airlines
7.2
Good
11,160 reviews

Comfort

7.2

Entertainment

6.9

Boarding

7.5

Food

6.4

Overall

7.2

Crew

8.0

Reviews

1 / 20
2.0
Mediocre

Susie,Jan 2026

CLT - TPA

This flight was delayed 3 or 4 times. We had boarded the plane, sat on plane for a good 30 minutes, then we had to board the aircraft, walk to a different gate, wait and then board another aircraft. We arrived in Tampa 4 hours later than the original booking. I feel there should have been some sort of compensation especially for the advantage members.

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 $580, Iberia can have you in London Heathrow Airport from Sioux Falls in 14h 01m. Sioux Falls and London Heathrow Airport are separated by a distance of 4189 mi.

  • 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 17% 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 June is currently the most expensive (average of $1,081). 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
Southend-on-Sea
Harrow
Croydon
Eastleigh
Gatwick
Dartford
Dover
Winchester
Orpington
Watford
Northampton
Hayes
Borehamwood
Broadway
Aylesbury
Chipping Norton
Horley
Kingston upon Thames

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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 Heathrow flights
Rapid City to London City 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 January 19, 2026.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$750Average$1,047FlexibilityNo cancel feeOn-time71%

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