C$ 221 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 22/10. 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

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$ 448
Orlando
Orlando2 stopsC$ 421
Las Vegas
Las Vegas2 stopsC$ 345
New York
New York2 stopsC$ 577
Los Angeles
Los Angeles2 stopsC$ 388
Miami
Miami2 stopsC$ 556
Tampa
Tampa1 stopC$ 458
Fort Myers
Fort Myers2 stopsC$ 493
Boston
Boston1 stopC$ 807
Seattle
Seattle1 stopC$ 364
Nashville
Nashville2 stopsC$ 649
San Diego
San Diego1 stopC$ 454
Atlanta
Atlanta2 stopsC$ 681
Fort Lauderdale
Fort Lauderdale1 stopC$ 448
Orlando
Orlando2 stopsC$ 421
Las Vegas
Las Vegas2 stopsC$ 345
New York
New York2 stopsC$ 577
Los Angeles
Los Angeles2 stopsC$ 388
Miami
Miami2 stopsC$ 556
Tampa
Tampa1 stopC$ 458
Fort Myers
Fort Myers2 stopsC$ 493
Boston
Boston1 stopC$ 807
Seattle
Seattle1 stopC$ 364
Nashville
Nashville2 stopsC$ 649
San Diego
San Diego1 stopC$ 454
Atlanta
Atlanta2 stopsC$ 681

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

dom., 12 oct. - vie., 17 oct.
WestJet Logo
6:00 a.m. - 8:21 p.m.YXU-LAS
17h 21m2 stops
WestJet Logo
6:20 p.m. - 5:12 a.m.LAS-YXU
7h 52m1 stop
C$ 345WestJet
Find Deal
dom., 12 oct. - vie., 17 oct.
WestJet Logo
6:00 a.m. - 8:21 p.m.YXU-LAS
17h 21m2 stops
WestJet Logo
1:25 p.m. - 5:12 a.m.LAS-YXU
12h 47m2 stops
C$ 350WestJet
Find Deal
dom., 12 oct. - vie., 17 oct.
WestJet Logo
8:00 p.m. - 5:34 p.m.YXU-LAS
24h 34m1 stop
WestJet Logo
6:20 p.m. - 5:12 a.m.LAS-YXU
7h 52m1 stop
C$ 352WestJet
Find Deal
lun., 8 dic. - mar., 27 ene.
WestJet Logo
8:10 p.m. - 2:20 p.m.YXU-SEA
21h 10m1 stop
WestJet Logo
3:10 p.m. - 6:34 a.m.SEA-YXU
12h 24m1 stop
C$ 364WestJet
Find Deal
vie., 5 dic. - mar., 27 ene.
Air Canada Logo
5:40 p.m. - 10:16 p.m.YXU-SEA
7h 36m1 stop
Air Canada Logo
5:50 a.m. - 9:21 p.m.SEA-YXU
12h 31m2 stops
C$ 379Air Canada
Find Deal
mié., 14 ene. - mié., 21 ene.
Air Canada Logo
5:45 a.m. - 5:07 p.m.YXU-MCO
11h 22m2 stops
Air Canada Logo
8:30 a.m. - 5:05 p.m.MCO-YXU
8h 35m2 stops
C$ 421Air Canada
Find Deal
mié., 17 dic. - sáb., 31 ene.
United Airlines Logo
5:40 p.m. - 10:16 p.m.YXU-SEA
7h 36m1 stop
United Airlines Logo
8:40 a.m. - 9:21 p.m.SEA-YXU
9h 41m2 stops
C$ 464United Airlines
Find Deal
mar., 16 dic. - dom., 25 ene.
United Airlines Logo
9:25 a.m. - 6:27 p.m.YXU-SEA
12h 02m2 stops
United Airlines Logo
5:00 a.m. - 5:05 p.m.SEA-YXU
9h 05m2 stops
C$ 471United Airlines
Find Deal
lun., 17 nov. - dom., 30 nov.
 Logo
8:10 p.m. - 2:20 p.m.YXU-SEA
21h 10m1 stop
 Logo
11:10 p.m. - 7:12 p.m.SEA-YXU
17h 02m2 stops
C$ 480
Find Deal
mar., 18 nov. - dom., 30 nov.
 Logo
8:10 p.m. - 7:11 a.m.YXU-SEA
14h 01m2 stops
 Logo
3:10 p.m. - 7:12 p.m.SEA-YXU
25h 02m1 stop
C$ 483
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 C$ 352 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$ 352.

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$ 481, prices are generally cheapest when you fly direct.

Good to know

Low seasonJuly
Cheapest flightC$ 221
Best time to beat the crowds (12% less expensive on average)
Most popular time to fly and prices are also 13% lower on average.
Flight from London to Los Angeles

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.

  • 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 evening, when round-trip flights cost C$ 418 on average. Morning departures are around 17% more expensive than evening flights, on average. The most expensive time of day to fly to the United States is generally in the morning, which is peak travel time and where the average cost of a ticket is C$ 489.

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 8929 reviews
6.6Food
7.7Boarding
7.3Comfort
8.1Crew
7.1Entertainment
Airline reviews

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

10.0 ExcellentPaulos, Aug 2025YUL - IAD
Read more United Airlines reviews

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

Efficient, calm when things were delayed and kept us regularly informed of what was happening.

Airbus plane, nice and polite staff, entertainment even as it was a short flight.

Very nice and clean plane. Transit time between flights was tight though

Our flights got changed from United to Air Canada and our purchased seats did not get transferred so we had to pay for seats twice. I brought it up with Air Canada and they stated I had to go back and chase it with United. The united seats were $21 Canadian each and Air Canada were $56 each so we have paid $77 for each seat. Very unhappy

So far so good but food and entertainment are not available for this flight

Plane temperature was comfortable (not to hot) when boarding and waiting for takeoff.

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

No dogs! Can we have no dogs in the cabin? Why was there a yappy little dog behind me? Lucky I had ear plugs. Sorry for others without

In spite of purchasing premium, I felt it was perhaps the most uncomfortable seat I have flown in. The base was either broken or poorly made and had no support. Even placing pillows and blankets on the seat (1D aisle) didn’t help. It made for a long and mostly sleepless six hour flight. Crew also were very loudly talking to each other through the night making it very hard to sleep. It was purchased for the price, so I get the risk, but was not impressed.

Good value, minor delay due to waiting for inbound plane but they gave accurate information about wait time. Able to switch to a seat by my husband thanks to a kind flight attendant

Absolutely terrible, from the customer service to boarding the plane. On the phone, there was some mishaps with getting in my correct date and they did not help me retrieve a refund or any assistance. I’m gonna be reporting to all my followers and family around the region of Los Angeles to New York.

Arrival at Comox from, London,ON 6 hours later... No bueano

Generally good. However. The flight left 30 mins behind schedule with no reason given.

Flight delayed, missed my pick-up had to Uber, plus missed dinner and medication, so sad!

Nothing to like because my inbound flight was cancelled without notification by West Jet or third party, JustFly. I couldn’t take the inbound flight due to cancellation; therefore could not take the outbound flight back.

Not the greatest experience everything was pretty mediocre. My seat was by the washroom in the aisle and was not located well as everyone past each other people were right in my seat and space.

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

Great breakfast and coffee …..fastest bag service I have ever had in NOLA

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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