FSD - LHR

$334 Find Cheap Flights from Sioux Falls to London Heathrow Airport

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 Heathrow departing on 11/30. 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 Heathrow Airport

 
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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41,299,237 searches in the past 7 days on KAYAK

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Everything you should know

Cheapest round-trip
$752
United Airlines
Sun 11/8Wed 11/11
FSD - LHR • 1 stop
Cheapest one-way
$334
United Airlines
Mon 11/30
FSD - LHR • 1 stop
Top airlines
Cheapest • from $752 (round-trip)
Best reviews • 7.4 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 Heathrow. You'll need at least 1 connection.
Insights
Insights
Insights
Insights
Top layover airports
Cheapest • Avg $602 (round-trip)
Shortest trip • 11h 30m (one-way)
Insights
Insights
Insights
Insights
When to travel
Cheapest • 100% price drop
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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 Heathrow!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Sioux Falls to Heathrow (FSD-LHR)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Sioux Falls to Heathrow 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 Heathrow

Sun, Nov 8 - Wed, Nov 11
United Airlines Logo
6:20 pm - 7:55 am
FSD
-
LHR
31h 35m
1 stop
United Airlines Logo
6:50 am - 11:36 pm
LHR
-
FSD
22h 46m
2 stops
$752United Airlines
Sat, Sep 12 - Tue, Sep 22
United Airlines Logo
5:15 pm - 9:40 am
FSD
-
LHR
34h 25m
1 stop
United Airlines Logo
6:50 am - 6:06 pm
LHR
-
FSD
17h 16m
2 stops
$881United Airlines
Sat, Sep 12 - Tue, Sep 22
United Airlines Logo
5:15 pm - 6:30 am
FSD
-
LHR
31h 15m
2 stops
United Airlines Logo
6:50 am - 6:06 pm
LHR
-
FSD
17h 16m
2 stops
$884United Airlines
Sun, Nov 8 - Wed, Nov 11
United Airlines Logo
11:20 am - 7:55 am
FSD
-
LHR
14h 35m
1 stop
United Airlines Logo
11:35 am - 8:46 pm
LHR
-
FSD
15h 11m
1 stop
$905United Airlines
Sun, Sep 13 - Sun, Sep 20
Iberia Logo
12:11 pm - 10:50 am
FSD
-
LHR
16h 39m
1 stop
Iberia Logo
6:15 am - 12:20 am
LHR
-
FSD
24h 05m
2 stops
$921Iberia
Mon, Aug 24 - Mon, Aug 31
Lufthansa Logo
6:39 pm - 6:25 pm
FSD
-
LHR
17h 46m
2 stops
Lufthansa Logo
8:25 pm - 8:07 pm
LHR
-
FSD
29h 42m
2 stops
$937Lufthansa
Mon, Aug 24 - Mon, Aug 31
Lufthansa Logo
6:39 pm - 7:40 pm
FSD
-
LHR
19h 01m
2 stops
Lufthansa Logo
8:25 pm - 8:07 pm
LHR
-
FSD
29h 42m
2 stops
$938Lufthansa
Sat, Sep 12 - Tue, Sep 22
United Airlines Logo
6:41 pm - 6:30 am
FSD
-
LHR
29h 49m
2 stops
United Airlines Logo
6:50 am - 6:06 pm
LHR
-
FSD
17h 16m
2 stops
$939United Airlines
Sat, Sep 12 - Tue, Sep 22
United Airlines Logo
5:15 pm - 9:40 am
FSD
-
LHR
34h 25m
1 stop
United Airlines Logo
6:50 am - 6:06 pm
LHR
-
FSD
17h 16m
2 stops
$941United Airlines
Sat, Sep 12 - Tue, Sep 22
United Airlines Logo
5:15 pm - 9:40 am
FSD
-
LHR
34h 25m
1 stop
United Airlines Logo
6:50 am - 6:06 pm
LHR
-
FSD
17h 16m
2 stops
$942United Airlines
Booking Insights

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

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

What is the cheapest month to fly from Sioux Falls to London Heathrow Airport?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Sioux Falls to London Heathrow Airport, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Sioux Falls to London Heathrow Airport is October, where tickets cost $0 (return) on average. On the other hand, the most expensive months are June and July, where the average cost of round-trip tickets is $1,269 and $1,163 respectively.

Good to know

Low seasonMarch
Cheapest flight$334
Best time to beat the crowds with an average 31% drop in price.
Most popular time to fly with an average 14% increase in price.
Flight from Sioux Falls to London Heathrow Airport

When to book flights from Sioux Falls to Heathrow

Are your dates flexible? Find out the best times to travel from Sioux Falls to Heathrow 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 Sioux Falls to London Heathrow Airport flights

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

    In the last 5 days, the lowest price for a flight from Sioux Falls to London Heathrow Airport was $334 for a one-way ticket and $752 for a round-trip.

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

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

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

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

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

    oneworld, and Star Alliance are the airline alliances operating flights between Sioux Falls and London Heathrow Airport, with oneworld 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 $1,073 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 $987 and an overall rating of 7.1.

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

    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 Heathrow Airport.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to London Heathrow Airport 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 Heathrow Airport?

    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 Heathrow Airport with an airline and back to Sioux Falls with another airline. Booking your flights between Sioux Falls and LHR can sometimes prove cheaper using this method.

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

    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 Heathrow Airport 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 Heathrow

 
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 Heathrow? 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 9859 reviews
7.7Boarding
7.3Comfort
8.1Crew
7.1Entertainment
6.6Food
Airline reviews

Very easy ! Use the kiosk and bag drop and right to security within 10 min

10.0 ExcellentJoanne, Jun 2026
DEN - ORD
Read more United Airlines reviews

Very easy ! Use the kiosk and bag drop and right to security within 10 min

Checking bag at terminal was horrible. No agents to check us in and only 1 kiosk working. Boarding went ok. Crew onboard was very scattered rained. Missed our row while serving and then didn’t see them hardly again.

Crew was amazing, takeoff wonderful. The bathroom was disgusting from before takeoff the odor made the flight uncomfortable as you could smell the bathroom from the center of the plane where we were sitting. Smelled like raw sewage. My daughter was throwing up as we landed due to the smell and horrible turbulence as we approached Newark.

Airline tickets are not cheap. You expect reliable competent service. Thanks to canceled flights and botched transfers we arrived at our destination two days late. This is not acceptable

Horrible! Several delays and then was cancelled! I spent over 24 hours in the airport and was unable to get a hotel or food voucher.

The entertainment they offer could use some games, and maybe they could add some cookies to the snack menu. And the automated messages are a bit repetitive. But it was comfortable temperature wise and the seats were comfortable. The crew is very polite and helpful

The entertainment is a bit limited, it would be better if they added some games to play besides the movies and tv shows. But the seats are comfortable and the crew is polite

This planes staff was top tier. Everything went great and had a great flight home.

Food was great. Staff was phenomenal. Seats were a bit hard and could use a lot more entertainment options as far as movies to choose from. WiFi was good. Overall great trip.

This was an overnight flight, and in the morning they did know coffee service. How you can throw passengers in a San Francisco airport at 5:40 a.m. in the morning and not giving them Coffee is a crime.

Luggage did not make it onto my plane. Business seats were economy with empty row seat. Just horrible experience. Why would the company allow for transfers that don’t give employees enough time to transfer luggages??

For an long range economy flight I feel more space and more meal options need to be offered for flights over 5 hours

The check in agents in PHL and gate agents had to have been the rudest women that I have ever encountered; the agent weighing the bags at check in screamed continuously at all of the guests as did the woman at the gate.I have Executive Platinum status with AA and fly a lot with AA but these ladies were the absolute worst I had the displeasure to encounter!

B-class on an old plane with antiquated amenities and poor service. Landed in Rome w/o bag that didn’t make the connection (plenty of time in London). Bag will come to hotel NOT the day it lands but the following night!! Still waiting for bag…BA had nothing to offer in support and couldn’t even tell me their comp, told to submit receipts and then I’ll learn what is or isn’t covered.

It's a long flight and that is always difficult. I was comfortable and well. The movies available were great and the crew was good.

Premium Economy Good crew, good service, excellent food. Seat back screen just not bright enough.

Flight was delayed an no one cares, or try to help passengers to get the conexión.

Our flight was cancelled while we are on our way to the airport. So, no notice. We were rescheduled to another airline with a 2 hour later takeoff and so arrived at our destination on time. We pre-paid American Airlines $190 to upgrade our seats. No refund. So no use for AA or Kayak.

Terrible, horrible, disappointing- without telling us they changed planes and moved and separated our seats to opposite sides - said they changed seats putting us together - got to airport to find no, they did not - we sat opposing sides of plane - food overly salty to inedible, never saw stewardess but once - it was terrible

The business class layout of chairs was weired. You are sitting directly across stranger.,

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

Information on your arrival and departure airports