C$ 205 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 12/1. 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

Best United States Flight Deals from London

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Fort Lauderdale
Fort Lauderdale1 stopC$ 453
Orlando
Orlando1 stopC$ 453
Las Vegas
Las Vegas2 stopsC$ 464
New York
New York1 stopC$ 560
Los Angeles
Los Angeles2 stopsC$ 406
Miami
Miami1 stopC$ 518
San Francisco
San Francisco1 stopC$ 443
Tampa
Tampa1 stopC$ 451
Honolulu
Honolulu2 stopsC$ 676
Fort Myers
Fort Myers2 stopsC$ 532
Seattle
Seattle1 stopC$ 330
Boston
Boston1 stopC$ 676
Nashville
Nashville2 stopsC$ 564
San Diego
San Diego1 stopC$ 605
Fort Lauderdale
Fort Lauderdale1 stopC$ 453
Orlando
Orlando1 stopC$ 453
Las Vegas
Las Vegas2 stopsC$ 464
New York
New York1 stopC$ 560
Los Angeles
Los Angeles2 stopsC$ 406
Miami
Miami1 stopC$ 518
San Francisco
San Francisco1 stopC$ 443
Tampa
Tampa1 stopC$ 451
Honolulu
Honolulu2 stopsC$ 676
Fort Myers
Fort Myers2 stopsC$ 532
Seattle
Seattle1 stopC$ 330
Boston
Boston1 stopC$ 676
Nashville
Nashville2 stopsC$ 564
San Diego
San Diego1 stopC$ 605

Cheap Flights from London to the United States

 
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, 2 Feb - Tue, 10 Feb
WestJet Logo
8:10 p.m. - 2:19 p.m.
YXU
-
SEA
21h 09m1 stop
WestJet Logo
3:10 p.m. - 6:35 a.m.
SEA
-
YXU
12h 25m1 stop
C$ 330WestJet
Thu, 15 Jan - Mon, 19 Jan
Air Canada Logo
5:40 p.m. - 10:16 p.m.
YXU
-
SEA
7h 36m1 stop
Air Canada Logo
8:00 p.m. - 8:46 a.m.
SEA
-
YXU
9h 46m2 stops
C$ 334Air Canada
Mon, 12 Jan - Wed, 14 Jan
Air Canada Logo
5:40 p.m. - 10:16 p.m.
YXU
-
SEA
7h 36m1 stop
Air Canada Logo
8:00 p.m. - 8:46 a.m.
SEA
-
YXU
9h 46m2 stops
C$ 354Air Canada
Mon, 2 Feb - Tue, 10 Feb
Air Canada Logo
5:40 p.m. - 9:31 a.m.
YXU
-
SEA
18h 51m2 stops
Air Canada Logo
8:00 p.m. - 8:46 a.m.
SEA
-
YXU
9h 46m2 stops
C$ 376Air Canada
Thu, 15 Jan - Mon, 19 Jan
Air Canada Logo
5:40 p.m. - 10:16 p.m.
YXU
-
SEA
7h 36m1 stop
Air Canada Logo
8:10 a.m. - 9:20 p.m.
SEA
-
YXU
10h 10m1 stop
C$ 383Air Canada
Mon, 12 Jan - Wed, 14 Jan
Air Canada Logo
5:40 p.m. - 10:16 p.m.
YXU
-
SEA
7h 36m1 stop
Air Canada Logo
8:10 a.m. - 9:21 p.m.
SEA
-
YXU
10h 11m1 stop
C$ 405Air Canada
Thu, 15 Jan - Mon, 19 Jan
Air Canada Logo
9:50 a.m. - 9:15 a.m.
YXU
-
SEA
26h 25m2 stops
Air Canada Logo
8:00 p.m. - 8:46 a.m.
SEA
-
YXU
9h 46m2 stops
C$ 409Air Canada
Thu, 15 Jan - Mon, 19 Jan
United Airlines Logo
9:50 a.m. - 10:43 p.m.
YXU
-
SEA
15h 53m3 stops
United Airlines Logo
8:10 a.m. - 9:20 p.m.
SEA
-
YXU
10h 10m2 stops
C$ 425United Airlines
Wed, 28 Jan - Wed, 18 Feb
WestJet Logo
8:10 p.m. - 8:15 p.m.
YXU
-
LAS
27h 05m2 stops
WestJet Logo
8:00 a.m. - 6:35 a.m.
LAS
-
YXU
19h 35m1 stop
C$ 464WestJet
Thu, 22 Jan - Sun, 1 Feb
United Airlines Logo
5:10 a.m. - 10:54 a.m.
YXU
-
SFO
8h 44m1 stop
United Airlines Logo
12:43 a.m. - 9:20 p.m.
SFO
-
YXU
17h 37m3 stops
C$ 517United 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 C$ 348 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 C$ 348.

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 C$ 475, prices are generally cheapest when you fly direct.

Good to know

Low seasonJuly
Cheapest flightC$ 205
Best time to beat the crowds (6% less expensive on average)
Most popular time to fly and prices are also 7% lower on average.
Flight from London to Seattle

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 travellers 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.

Reviews of the top 4 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.
7.4
United AirlinesOverall score based on 9120 reviews
6.6Food
8.1Crew
7.1Entertainment
7.7Boarding
7.3Comfort
Airline reviews

The Sears in the 800s are not too good perfect Airbus why cant the new 737 fix that

8.0 ExcellentAnonymous, Dec 2025
YEG - IAH
Read more United Airlines reviews

The Sears in the 800s are not too good perfect Airbus why cant the new 737 fix that

Quick and seamless boarding. No entertainment but fast Starlink wifi for this short trip and the staff was really friendly.

I dread trans-Pacific flights. They are very long. This was my first time on Universal, and it was my best crossing ever. The staff were professional, the hospitality was great, and the food was delicious. The entertainment system filled the long flight hours. I will seek out Universal flights from now onwards. 🙂

The food quality sucks. One must starve if they do not eat flesh Or wheat based products Some variety would be expected. The trivial amount of snacks and or food is inhumane

We Left Calgary 1/2 hour late and that made for a tight connection in Denver. After arriving everything was done to help us make our connection. That was a great effort. Thank You United

Efficient all round, very good crew. Short flight so the food, of course, was just snacks

Overall, it was good. I was seating next to a wonderful lady and did not notice how time flew. Thanks

My flight was delayed about 1 1/2 hours in Chicago, but other then that it was a good flight.

The experience was great, the crew was very polite and hospitable. I will definitely make if my go to airlines.

It was all good flight was on time, service was good I enjoyed a few movies and everything was smooth

My luggage was damaged 1 wheel was out I can't find it nowhere

Took 3 hours to check in and drop off our suitcases. Half of the passengers were still in line by boarding time. The computer systems and staff were very slow. Staff were also disorganized and kept allowing later flights to skip lines. Suitcases were piling on that several other passengers didn't get their suitcases. Then, we were sitting in the plane for 2 hours and were told that the flight was overbooked. We missed our connecting flight and had to fly the following day but with a stop over. Good thing ONE WestJet customer rep was pleasant and actually knew how to do her job when we wanted to rebook to a direct flight. Thank you to Kim at Toronto airport. Terrible experience at PUJ. Won't go back to Dominican Republic.

Great seats, super comfortable, but no in flight entertainment which was a let down

Airplane is too small. Crew, especially the flight attendant who looked after our area, was not at all friendly and a touch authoratative. She may have been the most gruff flight attendant i've come across in 40 years of business travel

I when to Jamaica for my dad funeral and I did not get my luggage from westjet . I add to buy clothes putting me financial debt i did no want to be in Westjet did not call me to apologize are to inquire about my luggage I am still angry about it

Ground staff was not helpful, but staff at the business counter were excellent.

I selected "carry-on" for a round trip on Kayak, but my return flight on WestJet did not include a carry-on and they would not allow me to add one. My only option was to add a "checked bag" which I had to wait for on the luggage carousel after landing. Not a good experience.

We landed 26 min early. It was awesome! Smooth ride too.

There is no snack and nit much that would be considered gluten free in yiur food selections. One of your snacks should be a gluten free cookie or small bar etc. maybe it was me but I didn’t see any free movies just internet connection and YouTube .

I like how spacious the plane was but I did not like the fact that there was no entertainment

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.

Their "free personal" requirement is to have your bag fit in a containment frame that is way too narrow and slender than the space under the actual plane seat (the length of my vitamin water was longer than the width of the containment frame. They had personel at the gate literally designated to hounding people's bags in the zone line up, and forcing them to measure their bag again if he felt "the bag might be too big for personal item". If your bag was too big for their scamming measurement criteria you had to fork up $110 CAD for the carry on cost ($85 at the 24hr online pre-check in). Plane had no entertainment, seats did not recline, and no complimentary snacks or drinks. Unless I have a short flight with zero bags, I won't be flying Flair ever 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

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

Information on your arrival and departure airports