Cheap flights from London to Sioux Falls
Cheap return flights from London to Sioux Falls
Find the best deals
All prices shown are per person based on return flights only. Prices found in the last 48 hours.
Sioux Falls flight facts
What you need to know
What are the cheapest airlines?
- American Airlines
- United Airlines
- Delta Air Lines
These airlines usually offer the cheapest flights from London to Sioux Falls.
What airlines fly indirectly?
- Alaska Airlines
- Southwest Airlines
- JetBlue Airways
These airlines fly from London to Sioux Falls, but you’ll have at least one layover.
How long is the flight?
15 hours
This is the shortest flight time from London to Sioux Falls.
Alternative flights from the UK to Sioux Falls
Check out prices for other routes
Alternative flights from London
You might find cheaper flights nearby
Today alone, Netflights has searched over five flights. 05 / Feb / 2026 is currently the lowest priced day of the year to fly the London/Sioux Falls route. There are around 35 flights on any given week from the UK to Sioux Falls and the cheapest month to fly right now is February. Not suitable? Try running another search or viewing all cheap flight deals.
How to get cheap flights from London to Sioux Falls
Tips and advice from our flight experts
You've searched for flights from London to Sioux Falls. We've found 25 flights and compared them to give you the best offer. American Airlines is usually the cheapest for this route, so keep an eye on them. The cheapest offer we've found is a one-way ticket for £90 from London to Sioux Falls on 17/02/2026 at 03:25.
We've scanned hundreds of airfares across the globe from various airlines. In total, we've found 10 airlines that operate the 7,500 km flight from London to Sioux Falls.
To find the best offers, consider booking 2-3 months in advance or looking for last-minute deals. The best time to fly is during the shoulder seasons. American Airlines is a popular choice for this route, with an average flight duration of 15 hours. After selecting an offer, fill out your information and proceed to payment. Don't forget to check our flight + hotel service to save time and money!
Other popular destinations near Sioux Falls
Where other people are flying to
