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Cheap flights from Sioux Falls to London Heathrow Airport from £355

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 4/9. Fares are subject to change and may not be available on all flights or dates of travel.
FSD — LHR
5 May — 12 May1
1 adult

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 30 April 2025.

Round-trip from

£558

One-way from

£355

Popular in

June

Cheapest in

September

Average price

£632
Iberia
  • Iberia
  • 7/10-17/10
  • 2 total stops
  • 32h 09m total
  • Sioux Falls to London
Search Deals
Delta
  • Delta
  • 4/9
  • 1 total stop
  • 19h 20m total
  • Sioux Falls to London
Search Deals
Highest demand for flights based on searches. 27% potential increase in price (£211 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease (£31 potential savings vs. average return price).
Search Deals
Average for round-trip flights in April 2025
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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 30 April 2025.

Tue 7/1010:55FSD - LHR
1 stop14h 25mIberia
Fri 17/1012:15LHR - FSD
1 stop17h 44mIberia
Deal found 29/4£558
Thu 11/905:25FSD - LHR
1 stop19h 20mDelta
Tue 23/909:20LHR - FSD
1 stop18h 51mDelta
Deal found 29/4£565
Tue 7/1011:19FSD - LHR
2 stops16h 16mUnited Airlines
Fri 17/1014:05LHR - FSD
2 stops33h 22mUnited Airlines
Deal found 29/4£570
Tue 7/1005:25FSD - LHR
1 stop19h 20mKLM
Fri 17/1012:25LHR - FSD
1 stop16h 24mKLM
Deal found 29/4£588
Tue 7/1016:09FSD - LHR
2 stops15h 21mVirgin Atlantic
Fri 17/1011:45LHR - FSD
2 stops17h 04mVirgin Atlantic
Deal found 29/4£591
Wed 16/718:26FSD - LHR
1 stop11h 19mLufthansa
Mon 21/719:30LHR - FSD
2 stops28h 15mLufthansa
Deal found 29/4£825
Tue 24/617:16FSD - LHR
1 stop13h 29mAmerican Airlines
Wed 23/711:05LHR - FSD
1 stop12h 23mAmerican Airlines
Deal found 29/4£953
Mon 23/611:59FSD - LHR
1 stop22h 01mMultiple Airlines
Tue 24/621:10LHR - FSD
2 stops50h 55mMultiple Airlines
Deal found 29/4£1,427

Cheapflights Fare Finder

Customise 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 858,174 searches. Data last updated 30 April 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

Tue 7/10

10:55-07:20

1 stop14h 25m

London Heathrow

Fri 17/10

12:15-23:59

1 stop17h 44m

£558

Sioux FallsLondon

FSD - LHR

FSDLHR

Sioux Falls Joe Foss Field

Thu 11/9

05:25-06:45

1 stop19h 20m

London Heathrow

Tue 23/9

09:20-22:11

1 stop18h 51m

£565

Sioux FallsLondon

FSD - LHR

FSDLHR

Sioux Falls Joe Foss Field

Tue 7/10

15:12-11:45

1 stop14h 33m

London Heathrow

Fri 17/10

14:05-17:27

2 stops33h 22m

£570

Sioux FallsLondon

FSD - LHR

FSDLHR

Sioux Falls Joe Foss Field

Tue 7/10

05:25-06:45

1 stop19h 20m

London Heathrow

Fri 17/10

12:25-22:49

1 stop16h 24m

£588

Sioux FallsLondon

FSD - LHR

FSDLHR

Sioux Falls Joe Foss Field

Tue 7/10

16:09-13:30

2 stops15h 21m

London Heathrow

Fri 17/10

11:45-22:49

2 stops17h 04m

£591

Sioux FallsLondon

FSD - LHR

FSDLHR

Sioux Falls Joe Foss Field

Wed 16/7

18:26-11:45

1 stop11h 19m

London Heathrow

Mon 21/7

19:30-17:45

2 stops28h 15m

£825

Sioux FallsLondon

FSD - LHR

FSDLHR

Sioux Falls Joe Foss Field

Tue 24/6

17:16-12:45

1 stop13h 29m

London Heathrow

Wed 23/7

11:05-17:28

1 stop12h 23m

£953

Sioux FallsLondon

FSD - LHR

FSDLHR

Sioux Falls Joe Foss Field

Mon 23/6

11:59-16:00

1 stop22h 01m

London Heathrow

Tue 24/6

21:10-18:05

2 stops50h 55m

£1,427

Sioux FallsLondon

FSD - LHR

FSDLHR

Sioux Falls Joe Foss Field

Thu 4/9

05:25-06:45

1 stop19h 20m

£355

Sioux FallsLondon

FSD - LHR

FSDLHR

Sioux Falls Joe Foss Field

Mon 9/6

07:23-07:50

2 stops18h 27m

£547

Flights are sorted by cheapest return flights first.

Deals found on 29/4

Showing 1-10 of 11 results
1
2

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 return 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, January is the cheapest month in which you can book a flight from Sioux Falls to London Heathrow Airport (average of £112). Flying from Sioux Falls to London Heathrow Airport in August is currently the most expensive (average of £164). 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.

Rainfall in Heathrow by month

Plan your trip to Heathrow by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in London Heathrow Airport ranges from 40.0 - 70.0 inches per month. January is typically the wettest month, when rainfall can reach 70.0 mm. July is typically the driest time to visit London Heathrow Airport when rainfall is around 40.0 mm.

Temperature in Heathrow by month

Plan your trip to Heathrow by taking into account the average temperature totals by month.

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 17.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 4.0 C).

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 30 April 2025.
Delta
8.0
Very Good
7,936 reviews
Check prices

Comfort

7.9

Crew

8.5

Food

7.3

Boarding

8.2

Entertainment

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Delta
8.0
Very Good
7,936 reviews
Delta
8.0
Very Good
7,936 reviews
Check prices

Comfort

7.9

Crew

8.5

Food

7.3

Boarding

8.2

Entertainment

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
KLM
7.8
Good
1,333 reviews
Delta
8.0
Very Good
7,936 reviews
Check prices

Comfort

7.9

Crew

8.5

Food

7.3

Boarding

8.2

Entertainment

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
United Airlines
7.4
Good
8,696 reviews
Delta
8.0
Very Good
7,936 reviews
Check prices

Comfort

7.9

Crew

8.5

Food

7.3

Boarding

8.2

Entertainment

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Virgin Atlantic
7.4
Good
642 reviews
Delta
8.0
Very Good
7,936 reviews
Check prices

Comfort

7.9

Crew

8.5

Food

7.3

Boarding

8.2

Entertainment

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very Good
7,936 reviews
Check prices

Comfort

7.9

Crew

8.5

Food

7.3

Boarding

8.2

Entertainment

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

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?

    Most people fly from Sioux Falls Joe Foss Field (FSD) if they book a flight from Sioux Falls to London Heathrow. On average, Joe Foss Field has 0 outbound flights to London Heathrow per day from 0 airlines. Sioux Falls Joe Foss Field is conveniently located just 2.6 mi from Sioux Falls’s city center.

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

    Currently priced at £558, Iberia will fly you from Sioux Falls to London Heathrow Airport and back. In addition to Iberia, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Delta and United Airlines - these airlines can fly you to your destination from £565 and £570, respectively. Users have found that Iberia is 25% cheaper than the other options available to this destination.

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

    One-way options have recently been found by users for as low as £355 on Delta. Other airlines that offer cheap prices include Iberia from £547 and KLM from £617 one-way.

  • 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 holiday 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, January is the cheapest month in which you can book a flight from Sioux Falls to London Heathrow Airport (average of £112). Flying from Sioux Falls to London Heathrow Airport in August is currently the most expensive (average of £164). 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

Travelling to a place near Sioux Falls?

Book flights to Sioux Falls if you plan to visit one of these locations
Deal
Hounslow
Milton Keynes
Gatwick
Luton
Slough
Croydon
Eastbourne
Northampton
Southend-on-Sea
Ilford
Crawley
Hayes
Ipswich
Watford
Wembley
Swindon
Folkestone
Maidstone
Winchester

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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.
Rapid City to Heathrow flights
Sioux Falls to Gatwick flights

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