FSD - LON

$224 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 4/27. 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
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Everything you should know

Cheapest round-trip
$652
Typical prices: $1,094-$1,156
Delta
Mon 4/27Wed 5/6
FSD - LHR • 1 stop
Cheapest one-way
$224
Delta
Mon 4/27
FSD - LHR • 2 stops
Top airlines
Delta
Cheapest • from $652 (round-trip)
United Airlines
Best reviews • 7.4 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
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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

Mon, Apr 27 - Wed, May 6
Delta Logo
5:25 am - 6:30 amFSD-LHR
19h 05m1 stop
Delta Logo
6:30 am - 7:06 pmLHR-FSD
18h 36m2 stops
$652Delta
Find Deal
Mon, Apr 27 - Wed, May 6
Delta Logo
1:20 pm - 1:30 pmFSD-LHR
18h 10m2 stops
Delta Logo
8:40 am - 7:06 pmLHR-FSD
16h 26m2 stops
$656Delta
Find Deal
Mon, Apr 27 - Wed, May 6
KLM Logo
1:20 pm - 1:10 pmFSD-LHR
17h 50m1 stop
KLM Logo
12:25 pm - 7:06 pmLHR-FSD
12h 41m1 stop
$680KLM
Find Deal
Mon, Apr 27 - Wed, May 6
KLM Logo
1:20 pm - 1:10 pmFSD-LHR
17h 50m1 stop
KLM Logo
10:55 am - 10:11 pmLHR-FSD
17h 16m1 stop
$681KLM
Find Deal
Fri, Mar 27 - Tue, Mar 31
Virgin Atlantic Logo
5:20 am - 9:00 amFSD-LHR
22h 40m1 stop
Virgin Atlantic Logo
8:40 am - 7:18 pmLHR-FSD
16h 38m2 stops
$688Virgin Atlantic
Find Deal
Mon, Apr 27 - Wed, May 6
Lufthansa Logo
6:30 pm - 6:35 pmFSD-LCY
18h 05m2 stops
Lufthansa Logo
9:15 am - 9:47 pmLCY-FSD
18h 32m2 stops
$743Lufthansa
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Mon, Apr 27 - Wed, May 6
Lufthansa Logo
6:30 pm - 6:35 pmFSD-LCY
18h 05m2 stops
Lufthansa Logo
9:15 am - 9:47 pmLCY-FSD
18h 32m2 stops
$744Lufthansa
Find Deal
Mon, Apr 27 - Wed, May 6
Iberia Logo
12:30 pm - 10:55 amFSD-LGW
16h 25m2 stops
Iberia Logo
11:35 am - 10:12 pmLGW-FSD
16h 37m2 stops
$921Iberia
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Mon, Apr 27 - Wed, May 6
Iberia Logo
12:30 pm - 10:55 amFSD-LGW
16h 25m2 stops
Iberia Logo
11:35 am - 10:12 pmLGW-FSD
16h 37m2 stops
$951Iberia
Find Deal
Fri, Mar 27 - Tue, Mar 31
Virgin Atlantic Logo
4:09 pm - 12:15 pmFSD-LCY
39h 06m2 stops
Virgin Atlantic Logo
5:10 pm - 10:58 pmLCY-FSD
35h 48m2 stops
$1,085Virgin Atlantic
Find Deal
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.

How much is a round-trip flight from Sioux Falls to London?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Sioux Falls to London departing in April.

Good to know

Low seasonMay
Cheapest flight$224
Best time to beat the crowds with an average 25% drop in price.
Most popular time to fly and prices are also 17% lower on average.
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 $224 for a one-way ticket and $652 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?

    Star Alliance, and oneworld are the airline alliances operating flights between Sioux Falls and London, with Star Alliance being the most commonly used for this route.

  • Which is the best airline for flights from Sioux Falls to London, United Airlines or American Airlines?

    The two airlines most popular with KAYAK users for flights from Sioux Falls to London are United Airlines and American Airlines. With an average price for the route of $1,028 and an overall rating of 7.4, United Airlines is the most popular choice. American Airlines is also a great choice for the route, with an average price of $905 and an overall rating of 7.2.

  • 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 airlines 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.
7.4
United AirlinesOverall score based on 9020 reviews
7.7Boarding
7.1Entertainment
6.6Food
8.1Crew
7.3Comfort
Airline reviews

Even though we were delayed, we were able to make our connection

8.0 ExcellentDavid, Nov 2025TYS - IAH
Read more United Airlines reviews

Even though we were delayed, we were able to make our connection

Seats in waiting area and on plane hard as rock. Fast internet on the flight was great! Crew was kind.

Starlink wifi on the Embraer E175 is an excellent experience. I was able to connect and work from IAD all the way to approach into BTV.

Older aircraft, no meal, only food was for purchase. Not impressed United.

United needs to step up their game. Delayed flight leaving Seattle, San Francisco. Older aircraft, not very comfortable.

Always wish for more healthy, gluten free options. We have to bring our own.

Having a long layover, I was very appreciative of the ability to stand by for an earlier flight. Other airlines like Delta have refused this to me in the past, just to be mean (because my ticket class wasn't high enough). United went out of their way to help me get to my destination early, which I really appreciated given that it was the third leg of a 24+ hour journey for me.

Other than a way way too cold cabinets for the entire flight, all was great

One bag is incorrect and not acceptable for an international flight. The food was not just good. I won't fly with them again.

Not pleasant trip cross country when the entertainment and WiFi system not working. No entertainment for entirety of route. Staff was rather nonchalant in that they dismissed the problem due to age of plane. It would have been nice to know this up front so I could have come prepared to read or download movies before boarding Coincidentally or not, there was a similar issue with the entertainment system on my previous flight I took on my fist leg of the trip. There are no seat TVs, so you must rely on the app when it works. United can do better. Also, what use it it to pay for boarding group 2 when half of the passengers are in the same line as you?

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.

The chicken adobo was a little too spicy but good otherwise. My personal opinion. Movie selection could be improved, too many horror movies. Could add a few more chick flicks! The flight was bumpy at times. We arrived a little early too! Flight attendants friendly.

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

Information on your arrival and departure airports