$177 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 1/30. 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

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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
Newark1 stop$479
Los Angeles
Los Angeles2 stops$284
Las Vegas
Las Vegas2 stops$293
Miami
Miami2 stops$369
San Francisco
San Francisco1 stop$297
Boston
Boston3 stops$519
Seattle
Seattle1 stop$525
Fort Lauderdale
Fort Lauderdale1 stop$359
Tampa
Tampa1 stop$359
Honolulu
Honolulu2 stops$296
San Diego
San Diego3 stops$319
New York
Newark1 stop$479
Los Angeles
Los Angeles2 stops$284
Las Vegas
Las Vegas2 stops$293
Miami
Miami2 stops$369
San Francisco
San Francisco1 stop$297
Boston
Boston3 stops$519
Seattle
Seattle1 stop$525
Fort Lauderdale
Fort Lauderdale1 stop$359
Tampa
Tampa1 stop$359
Honolulu
Honolulu2 stops$296
San Diego
San Diego3 stops$319

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

Fri, Jan 23 - Mon, Jan 26
WestJet Logo
7:30 am - 8:15 pm
YXU
-
LAS
39h 45m2 stops
WestJet Logo
7:05 pm - 6:34 am
LAS
-
YXU
8h 29m1 stop
$293WestJet
Fri, Jan 23 - Tue, Jan 27
WestJet Logo
7:30 am - 8:22 pm
YXU
-
MCO
36h 52m2 stops
WestJet Logo
5:30 pm - 6:34 am
MCO
-
YXU
13h 04m1 stop
$311WestJet
Fri, Jan 23 - Mon, Jan 26
Air Canada Logo
5:40 pm - 10:31 pm
YXU
-
LAS
7h 51m1 stop
Air Canada Logo
11:30 pm - 8:46 am
LAS
-
YXU
6h 16m1 stop
$321Air Canada
Sun, Jan 4 - Tue, Jan 13
Air Canada Logo
5:40 pm - 11:50 pm
YXU
-
MCO
6h 10m1 stop
Air Canada Logo
10:20 am - 5:05 pm
MCO
-
YXU
6h 45m1 stop
$339Air Canada
Mon, Jan 12 - Thu, Jan 15
WestJet Logo
8:10 pm - 9:31 pm
YXU
-
LAS
28h 21m1 stop
WestJet Logo
1:10 pm - 6:34 am
LAS
-
YXU
14h 24m2 stops
$342WestJet
Sun, Jan 4 - Tue, Jan 13
Air Canada Logo
5:10 am - 11:15 am
YXU
-
MCO
6h 05m1 stop
Air Canada Logo
8:30 am - 5:05 pm
MCO
-
YXU
8h 35m2 stops
$344Air Canada
Wed, Jan 14 - Tue, Jan 20
Multiple Airlines Logo
8:10 pm - 9:31 pm
YXU
-
LAS
28h 21m1 stop
Multiple Airlines Logo
3:46 pm - 6:34 am
LAS
-
YXU
11h 48m2 stops
$348Multiple Airlines
Mon, Jan 26 - Mon, Feb 2
Multiple Airlines Logo
8:10 pm - 4:38 pm
YXU
-
MCO
20h 28m1 stop
Multiple Airlines Logo
7:00 am - 6:35 am
MCO
-
YXU
23h 35m2 stops
$349Multiple Airlines
Sun, Jan 25 - Thu, Jan 29
United Airlines Logo
5:10 am - 4:52 pm
YXU
-
RSW
11h 42m2 stops
United Airlines Logo
7:03 am - 5:05 pm
RSW
-
YXU
10h 02m2 stops
$423United Airlines
Sun, Jan 25 - Thu, Jan 29
United Airlines Logo
5:10 am - 2:18 pm
YXU
-
RSW
9h 08m2 stops
United Airlines Logo
7:03 am - 5:05 pm
RSW
-
YXU
10h 02m2 stops
$424United Airlines
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 September, when tickets cost $354 (return) on average. On the other hand, the most expensive months are December and August, when the average cost of round-trip tickets is $813 and $721 respectively.

Good to know

Low seasonJuly
Cheapest flight$177
Best time to beat the crowds with an average 7% drop in price.
Most popular time to fly and prices are also 6% 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 10536 reviews
7.3Boarding
6.8Entertainment
7.1Comfort
6.3Food
7.8Crew
Airline reviews

My seat was covered in vomit and I will be reaching out to Air Canada

2.0 MediocreAnonymous, Dec 2025
YYZ - MCO
Read more Air Canada reviews

My seat was covered in vomit and I will be reaching out to Air Canada

It's kindof ridiculous that your system is even asking me about this since my flight was canceled and I wasn't rescheduled.

3 hr delay at the gate while they were doing maintenance. Next time, do not board passengers while maintenance is being performed

Digital check in is very poor with air canada compaired to other airlines

Baggage delayed we had to catch our cruise without any clothes 😒

Air Canada Rouge is great. Toronto Airport is the usual nightmare

Good but need to be better with the flight times.

The staff was great and made the long trip easy peasy!

The free Wi-fi for Aeroplan members was a great touch. The time passed quickly. I found the seats seemed a little closer together than I remember. Not Air Canada's fault, but we were about 20 minutes late landing because the airport was too busy. We had to circle around for a while. The boarding and disembarking went very smoothly.

Too many delays. Seats too small. A budget airline. Will never fly Air Canada again.

Flight attendant said bye bud. Lol peak flair right there

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.

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

Information on your arrival and departure airports