$158 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 10/4. 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 York1 stop$388
Los Angeles
Los Angeles2 stops$276
Las Vegas
Las Vegas2 stops$249
Miami
Miami2 stops$398
San Francisco
San Francisco1 stop$380
Boston
Boston2 stops$591
Seattle
Seattle1 stop$264
Fort Lauderdale
Fort Lauderdale1 stop$334
Tampa
Tampa2 stops$331
Honolulu
Honolulu2 stops$611
San Diego
San Diego2 stops$422
New York
New York1 stop$388
Los Angeles
Los Angeles2 stops$276
Las Vegas
Las Vegas2 stops$249
Miami
Miami2 stops$398
San Francisco
San Francisco1 stop$380
Boston
Boston2 stops$591
Seattle
Seattle1 stop$264
Fort Lauderdale
Fort Lauderdale1 stop$334
Tampa
Tampa2 stops$331
Honolulu
Honolulu2 stops$611
San Diego
San Diego2 stops$422

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

Sun, Oct 12 - Fri, Oct 17
WestJet Logo
6:00 am - 8:21 pmYXU-LAS
17h 21m2 stops
WestJet Logo
6:20 pm - 5:12 amLAS-YXU
7h 52m1 stop
$249WestJet
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Sun, Oct 12 - Fri, Oct 17
WestJet Logo
6:00 am - 8:21 pmYXU-LAS
17h 21m2 stops
WestJet Logo
1:25 pm - 5:12 amLAS-YXU
12h 47m2 stops
$253WestJet
Find Deal
Sun, Oct 12 - Fri, Oct 17
WestJet Logo
8:00 pm - 5:34 pmYXU-LAS
24h 34m1 stop
WestJet Logo
6:20 pm - 5:12 amLAS-YXU
7h 52m1 stop
$254WestJet
Find Deal
Sun, Oct 12 - Fri, Oct 17
WestJet Logo
6:00 am - 8:21 pmYXU-LAS
17h 21m2 stops
WestJet Logo
6:20 pm - 5:12 amLAS-YXU
7h 52m1 stop
$255WestJet
Find Deal
Mon, Feb 23 - Fri, Feb 27
Air Canada Logo
9:25 am - 8:49 pmYXU-LAS
14h 24m2 stops
Air Canada Logo
11:30 pm - 8:46 amLAS-YXU
6h 16m1 stop
$310Air Canada
Find Deal
Mon, Feb 23 - Fri, Feb 27
Air Canada Logo
9:25 am - 8:49 pmYXU-LAS
14h 24m2 stops
Air Canada Logo
11:30 pm - 8:46 amLAS-YXU
6h 16m1 stop
$312Air Canada
Find Deal
Sun, Oct 12 - Fri, Oct 17
United Airlines Logo
6:15 am - 9:57 pmYXU-LAS
18h 42m2 stops
United Airlines Logo
6:22 pm - 3:02 pmLAS-YXU
17h 40m3 stops
$343United Airlines
Find Deal
Fri, Jan 16 - Sat, Jan 24
United Airlines Logo
9:25 am - 3:17 pmYXU-LAX
8h 52m1 stop
United Airlines Logo
12:30 am - 9:21 pmLAX-YXU
17h 51m2 stops
$358United Airlines
Find Deal
Fri, Nov 14 - Mon, Dec 1
Multiple Airlines Logo
8:10 pm - 11:00 amYXU-LAX
17h 50m2 stops
Multiple Airlines Logo
10:50 am - 7:12 pmLAX-YXU
29h 22m3 stops
$384Multiple Airlines
Find Deal
Sun, Oct 12 - Fri, Oct 17
Multiple Airlines Logo
6:00 am - 8:21 pmYXU-LAS
17h 21m3 stops
Multiple Airlines Logo
7:30 pm - 5:12 amLAS-YXU
30h 42m3 stops
$408Multiple Airlines
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 August and October, when the average cost of round-trip tickets is $721 and $655 respectively.

Good to know

Low seasonJuly
Cheapest flight$158
Best time to beat the crowds with an average 12% drop in price.
Most popular time to fly and prices are also 13% lower on average.
Flight from London to Las Vegas

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 10000 reviews
7.1Comfort
7.3Boarding
6.3Food
7.8Crew
6.8Entertainment
Airline reviews

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

8.0 ExcellentShamela, Sep 2025YYZ - JFK
Read more Air Canada reviews

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.

After a long flight from Tokyo, our connecting flight home was canceled due to “maintenance” while we were on our layover in Toronto. Very frustrating to close out our honeymoon, although I’m sure others had it even worse during last week’s strike. Air Canada staff at Pearson Airport are the one thing that kept me remotely at peace during this — they were very helpful and deserve a lot of props. But I would not fly Air Canada again.

Horrible flight cancelled had to buy another very expensive ticket

Air Canada marooned me in Canada with no way back home during my summer vacation. I had to buy a last minute flight ticket for over $500 to make it back home. I have their credit card and have flown them for years. Never again.

Flight was cancelled last minute. Had to scramble and purchase a $2000 flight through a separate airlines. Stuck in Toronto two extra days. Missed my first two days on a new job. Had to rent a car for an additional two days. Scrambled to fins a place to live those extra two days. Spent a ton of extra money and lost a lot of money, as well as made a poor impression at work. Difficult difficult difficult

Terrible, return flight was cancelled a night before the flight was scheduled to depart and I was notified by an email and an automated message on their phone line. I’ll never book Air Canada again

Biggest problem for me is that I am Star Alliance Gold and they were not able to give me access to to Maple Lounge because of some computer glitch . It was management by information system. She could clearly see my status and still would not give me access because the computer woudl not let her. She should have override that be attentive to a customer and figure rhat out later

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.

flight was okay, no wifi, no free drinks but worst of all they lost my son's bike for four days. Customer service was nonexistent - call a number that leaves you on perpetual hold, there's no baggage folks in the baggage claims area (in vancouver). we went up to international and nobody was at ticketing, went to domestic and they had us fill out a form. they could not tell us where the bag was. Anyway, highly recommend you drop an airtag for anything that's worth more than $500. My son's bike costs a lot more than that to replace; I was on pins and needles for four days.

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

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