FSD - LON

$329 Find Cheap Flights from Sioux Falls to London

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Sioux Falls to London departing on 3/25. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to London

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Sioux Falls to London, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Sioux Falls to London, as well as popular online travel agencies
Travelers love KAYAK
41.299.237 searches in the past 7 days on KAYAK

Save 23% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Everything you should know

Cheapest round-trip
$626
Overall average: $1,009
Lufthansa
ons 4/8tis 4/21
FSD - LHR • 2 stops
Cheapest one-way
$329
Aer Lingus
ons 3/25
FSD - LHR • 2 stops
Top airlines
Lufthansa
Cheapest • from $681 (round-trip)
American Airlines
Best reviews • 7.2 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between Sioux Falls and London. You'll need at least 1 connection.
Insights
Insights
Insights
Insights
Top layover airports
Minneapolis (MSP)
Cheapest • Avg $838 (round-trip)
Chicago (ORD)
Shortest trip • 11h 04m (one-way)
Insights
Insights
Insights
Insights
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to London!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Sioux Falls to London (FSD-LON)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Sioux Falls to London that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Sioux Falls to London

ons, apr 8 - tis, apr 21
Lufthansa Logo
6:35 pm - 7:40 pm
FSD
-
LHR
19h 05m
2 stops
Lufthansa Logo
6:55 am - 8:30 pm
LHR
-
FSD
19h 35m
2 stops
$626Lufthansa
ons, apr 8 - tis, apr 21
Iberia Logo
7:45 pm - 12:15 pm
FSD
-
LHR
10h 30m
1 stop
Iberia Logo
6:15 am - 11:11 pm
LHR
-
FSD
22h 56m
2 stops
$644Iberia
ons, apr 8 - tis, apr 21
Iberia Logo
3:17 pm - 10:30 am
FSD
-
LHR
13h 13m
1 stop
Iberia Logo
2:45 pm - 11:11 pm
LHR
-
FSD
14h 26m
1 stop
$678Iberia
mån, aug 10 - tis, aug 18
United Airlines Logo
5:05 pm - 12:20 pm
FSD
-
LHR
13h 15m
1 stop
United Airlines Logo
5:40 pm - 8:46 pm
LHR
-
FSD
33h 06m
2 stops
$697United Airlines
fre, maj 1 - tors, maj 7
United Airlines Logo
4:57 pm - 12:20 pm
FSD
-
LHR
13h 23m
1 stop
United Airlines Logo
6:50 am - 9:47 pm
LHR
-
FSD
20h 57m
2 stops
$698United Airlines
tors, apr 30 - mån, maj 4
Multiple Airlines Logo
12:29 pm - 8:35 am
FSD
-
LCY
38h 06m
2 stops
Multiple Airlines Logo
8:30 pm - 11:11 pm
LCY
-
FSD
32h 41m
2 stops
$977Multiple Airlines
fre, maj 1 - tors, maj 7
KLM Logo
1:44 pm - 7:55 am
FSD
-
LCY
12h 11m
2 stops
KLM Logo
10:00 am - 7:26 pm
LCY
-
FSD
15h 26m
2 stops
$1,006KLM
fre, maj 1 - tors, maj 7
KLM Logo
1:44 pm - 7:55 am
FSD
-
LCY
12h 11m
2 stops
KLM Logo
10:00 am - 7:26 pm
LCY
-
FSD
15h 26m
2 stops
$1,030KLM
ons, jun 10 - tors, jul 9
American Airlines Logo
7:00 am - 6:50 am
FSD
-
LGW
17h 50m
2 stops
American Airlines Logo
12:20 pm - 12:06 am
LGW
-
FSD
17h 46m
2 stops
$1,125American Airlines
ons, jun 10 - tors, jul 9
American Airlines Logo
7:00 am - 6:50 am
FSD
-
LGW
17h 50m
2 stops
American Airlines Logo
12:20 pm - 11:46 am
LGW
-
FSD
29h 26m
2 stops
$1,126American Airlines
Booking Insights

KAYAK's insights & trends for Sioux Falls to London flights

Get data-powered insights and trends into flights from Sioux Falls to London to help you find the cheapest flights, the best time to fly and much more.

Which airlines provide the cheapest flights from Sioux Falls to London?

The cheapest round-trip price for the route for each airline clicked by KAYAK users in the last 72 hours.

In the past 3 days, the cheapest round-trip tickets from Sioux Falls to London were found on Lufthansa ($681) and United Airlines ($697).

Good to know

Cheapest flight$329
Flight from Sioux Falls to London Heathrow Airport

When to book flights from Sioux Falls to London

Are your dates flexible? Find out the best times to travel from Sioux Falls to London based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Sioux Falls to London

  • What is the cheapest flight from Sioux Falls to London?

    In the last 3 days, the lowest price for a flight from Sioux Falls to London was $329 for a one-way ticket and $681 for a round-trip.

  • Do I need a passport to fly between Sioux Falls and London?

    Yes, you’ll need a passport to travel to London from Sioux Falls.

  • Which aircraft models fly most regularly from Sioux Falls to London?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Sioux Falls to London?

    oneworld is the only airline alliance operating flights between Sioux Falls and London.

  • How does KAYAK find such low prices on flights from Sioux Falls to London?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Sioux Falls to London.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Sioux Falls to London?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to London from Sioux Falls is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Sioux Falls to London?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to London with an airline and back to Sioux Falls with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Sioux Falls to London?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to London from Sioux Falls up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airline flying from Sioux Falls to London

 
See real verified KAYAK customer reviews for airlines flying from Sioux Falls to London. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Sioux Falls to London? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.2
American AirlinesOverall score based on 11338 reviews
7.2Comfort
8.0Crew
7.5Boarding
6.4Food
6.9Entertainment
Airline reviews

My flight to London from Philadelphia was cancelled due to weather.

6.0 GoodRicciyah, Jan 2026
PHL - LHR
Read more American Airlines reviews

My flight to London from Philadelphia was cancelled due to weather.

Disliked having to wait a little longer to disembark from the plan when we landed in London

Food should be better quality. Video screens have poor resolution and the library of movies is poor. The other airlines are much better.

The trip was smooth but the crew were very abrupt, snatching things before finished and being quite snappy when asked questions.

My wife and I love to travel, so we fly a lot. We've already logged 381,075 miles and with practically every major airline. But this flight was very disappointing. It started off well, with no delays and a new plane. But when lunchtime approached, all that good impression was ruined. Instead of white tablecloths, we were offered small, dark placemats, which, as it turned out, were perfectly adequate for the food. All the food offered—and my wife and I only took fish, and the meat—was not just bad, it was downright disgusting and not heated enough. The same applies to the appetizers. This was the first time in many years of traveling that we've been offered such disgusting food.

Lost luggage stuck no clothes and no word after 2 days leaving on cruise no stuff or clothes

Don’t know they cancelled the flight day before I was to leave. They sent a email at 9:00 pm at night saying they cancelled. That is the smooth way to say we don’t want your business! I think they didn’t have enough people booking so they cancelled the flight! It’s all about the money anymore there is no honesty in business.

The flight was canceled 3 hours after original take off time

Pathetic check in experience at JFK. Everything is self check in. Not enough staff present to help with when the check in process or the kiosk gets stuck. Staff present not welcoming or pleasant at all. On the other hand the NY based flight crew was great. Courteous and friendly throughout the flight. Special meals leave a lot to be desired. Kids meals should be made available when kids are flying and same goes for special kids meals too.

Flight was full, and would have preferred an aisle seat, but due to getting a late ticket ,the seat I had was adequate. The flight crew were very help full and hard working. Food and drink were excellent for the 11hr flight. Overall I was pleased with flight, and would recommend British Airways again.

Everything you need to know for your flight from Sioux Falls to London

Information on your arrival and departure airports