$197 Find Cheap Flights from London to the United States

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from London to the United States departing on 12/3. 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

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Flight Deals

Cheap Flights from London to the United States

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
New York
New York2 stops$448
Los Angeles
Los Angeles1 stop$283
Las Vegas
Las Vegas1 stop$410
Miami
Miami1 stop$421
San Francisco
San Francisco1 stop$438
Boston
Boston2 stops$539
Seattle
Seattle2 stops$458
Fort Lauderdale
Fort Lauderdale1 stop$344
Tampa
Tampa1 stop$325
San Diego
San Diego2 stops$515
New York
New York2 stops$448
Los Angeles
Los Angeles1 stop$283
Las Vegas
Las Vegas1 stop$410
Miami
Miami1 stop$421
San Francisco
San Francisco1 stop$438
Boston
Boston2 stops$539
Seattle
Seattle2 stops$458
Fort Lauderdale
Fort Lauderdale1 stop$344
Tampa
Tampa1 stop$325
San Diego
San Diego2 stops$515

Book Cheap London to the United States Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from London to the United States 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 London to the United States

Mon, Jan 12 - Fri, Jan 16
Air Canada Logo
5:15 am - 11:15 amYXU-MCO
6h 00m1 stop
Air Canada Logo
4:05 pm - 9:21 pmMCO-YXU
5h 16m1 stop
$295Air Canada
Find Deal
Mon, Jan 12 - Fri, Jan 16
Air Canada Logo
5:40 pm - 11:30 pmYXU-MCO
5h 50m1 stop
Air Canada Logo
8:30 am - 5:05 pmMCO-YXU
8h 35m2 stops
$300Air Canada
Find Deal
Tue, Jan 13 - Tue, Jan 20
Air Canada Logo
5:15 am - 11:15 amYXU-MCO
6h 00m1 stop
Air Canada Logo
10:20 am - 5:05 pmMCO-YXU
6h 45m1 stop
$307Air Canada
Find Deal
Fri, Dec 5 - Tue, Dec 9
Air Canada Logo
5:40 pm - 11:30 pmYXU-MCO
5h 50m1 stop
Air Canada Logo
12:10 pm - 5:05 pmMCO-YXU
4h 55m1 stop
$323Air Canada
Find Deal
Tue, Jan 13 - Tue, Jan 20
Multiple Airlines Logo
5:15 am - 3:19 pmYXU-MCO
10h 04m2 stops
Multiple Airlines Logo
8:30 am - 9:21 pmMCO-YXU
12h 51m2 stops
$396Multiple Airlines
Find Deal
Thu, Jan 1 - Wed, Jan 7
United Airlines Logo
5:10 am - 8:24 pmYXU-FLL
15h 14m2 stops
United Airlines Logo
10:00 am - 9:21 pmFLL-YXU
11h 21m3 stops
$419United Airlines
Find Deal
Wed, Nov 12 - Wed, Nov 19
United Airlines Logo
5:15 am - 8:01 pmYXU-MCO
14h 46m2 stops
United Airlines Logo
12:01 pm - 9:21 pmMCO-YXU
9h 20m2 stops
$419United Airlines
Find Deal
Wed, Jan 28 - Mon, Feb 9
Multiple Airlines Logo
5:15 am - 4:36 pmYXU-MCO
11h 21m2 stops
Multiple Airlines Logo
8:30 am - 9:21 pmMCO-YXU
12h 51m2 stops
$434Multiple Airlines
Find Deal
Sun, Apr 19 - Fri, Apr 24
WestJet Logo
8:10 pm - 10:27 amYXU-LAS
17h 17m1 stop
WestJet Logo
1:10 pm - 7:07 pmLAS-YXU
50h 57m2 stops
$644WestJet
Find Deal
Thu, Dec 4 - Thu, Dec 11
WestJet Logo
8:10 pm - 8:15 pmYXU-LAS
27h 05m2 stops
WestJet Logo
8:00 am - 7:12 pmLAS-YXU
8h 12m1 stop
$646WestJet
Find Deal
Booking Insights

KAYAK's insights & trends for London to the United States flights

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

What is the cheapest London to the United States flight route?

Data is based on round-trip flight searches on KAYAK over the past month.

The cheapest ticket to the United States from London found in the last 72 hours was to Orlando, at $171 round-trip. The most popular route is from London (YXU) to Orlando Airport (MCO), and the cheapest round-trip airline ticket found on this route in the last 72 hours was $171.

Can I save money by flying with a layover from London to the United States?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

No, with an average price for the route of $171, prices are generally cheapest when you fly direct.

What is the cheapest month to fly from London to the United States?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from London to the United States, 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 London to the United States is July, when tickets cost $421 (return) on average. On the other hand, the most expensive months are October and August, when the average cost of round-trip tickets is $732 and $721 respectively.

Good to know

Low seasonJuly
Cheapest flight$197
Best time to beat the crowds with an average 14% drop in price.
Most popular time to fly and prices are also 13% lower on average.
Flight from London to Fort Lauderdale

FAQs - booking United States flights

  • How does KAYAK find such low prices on flights from London to the United States?

    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 London to the United States.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from London to the United States 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 London to the United States?

    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 from London to the United States with an airline and back with another airline.

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

    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 from London to the United States up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • What is the cheapest time of day to fly to the United States?

    The cheapest time of day to fly to the United States is generally in the morning, when round-trip flights cost $408 on average. Morning departures are around 4% cheaper than evening flights, on average. The most expensive time of day to fly to the United States is generally in the afternoon, which is peak travel time and where the average cost of a ticket is $482.

Reviews of the top airlines flying from London to the United States

 
Need help choosing which airline to fly with from London to the United States? 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.
7.1
Air CanadaOverall score based on 10337 reviews
7.1Comfort
7.8Crew
7.3Boarding
6.8Entertainment
6.3Food
Airline reviews

Extremely turbulent landing. Crew was friendly and plane comfortable. Airport and US pre clearance was understaffed

6.0 GoodTerry, Oct 2025YYZ - LGA
Read more Air Canada reviews

Extremely turbulent landing. Crew was friendly and plane comfortable. Airport and US pre clearance was understaffed

The airplane is way too tight, you can hardly enter into your row to sit.. more like kids seats than adults.

Wifi was great. Kind air crew and comfortable seating. Also liked the entertainment options.

First message when all on board was that we didnt have a pilot, then they found one, then it was something about the bridge something not working, they will either fix or do manually. Flight of course was leaving late with all the cruise guests worrying about making it to their ship in time. Then only some luggage made it off the ship. Around 15 to 20 people waiting. 45 min later arrived except mine. I asked the rep at the luggage conveyor, he asked me my name. Then said it was not picked up with the first batch so they put it in a room. I was going to take public transport but now worried about time so took a taxi that cost me $65 USD

The flight was very smooth and good. Boarding was fast, but the staff was just decently friendly.

Air Canada flight staff are in contact negotiations and they are less than happy and it show. The process of self checking baggage is less than desirable with lack of support staff to help

A sandwich and a drink would have been better thank a snack bar...

I liked the behaviour of the crew members.The flight was good.

I swear airplane seats keep getting smaller and smaller but everything else was great. Smooth sailing and we got in early.

No food to provide, they forgot that, in some cases, people stay at the airport for hours without food. Now, to provide them with food, they have to ask them to pay, because some don't have money. That way, they can't eat.

On time flight. Reasonably comfortable seats. Disliked having to pay for refreshment and snacks.

Very bead I am going to Vancouver to toronto. Not boarding receive. Before flight ✈️ time I have to take boarding. Boarding manager asking me pay $89 . Just flight ✈️ time before I pay .after provided the Boarding pass. Flair Airlines management not good. But kayak is best application.

Not good Even after I made my booking, I was charged $90 for my boarding pass. I have collected boarding pass i pay $90 near . Flair airline not good. Without pay no boarding pass.

The flight was smooth, but the seats are not comfortable. I was not able to sleep. The sizes for the personal item and carry-on are way smaller than other airlines.

Leg room was terrible and seats very narrow. Flight was also delayed.

The worst airline experience that I ever had in my life. The fare was cheap but boy do you pay for it when it comes to baggages, carry-ons, food on board and lack of available staff at check-in. Almost every other passenger on my flight had the same complaints and experience. We all bonded discussing our displeasure. My husband and I will definitely not be traveling with Flair Airlines. We'll take anyone else.

The most uncomfortable plane I ever fly on. The seats won't even recline a little. For a 5 hrs flight at night and tired it felt like torture

Seats in 1 res are dispersed all over the plane, even child was across

Personally, I will not use this fight again. The service is poor, you have to buy even water. They don't provide anything even sneak, you have to buy. They said Personally items for 7 kg. Then they use some measurements, if you have 7kg and if it's not getting inside of their measurements, you have to pay 80$ this is robbery. I will prefer other flight then this. I am désappointement taking this airplane.

It’s a shameful company. It ask as to go to counter to take the boarding pass, they simply send it by email, just to check the bags’ size in a smaller than normal template. DONT USE FLAIR! It will be more expensive than normal airlines at the end.

Everything you need to know for your flight from London to the United States

Information on your arrival and departure airports

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