C$ 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 7/10. 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$ 462
Orlando
Orlando1 stopC$ 448
Las Vegas
Las Vegas2 stopsC$ 372
New York
New York1 stopC$ 483
Los Angeles
Los Angeles2 stopsC$ 441
Miami
Miami1 stopC$ 557
San Francisco
San Francisco1 stopC$ 380
Honolulu
Honolulu2 stopsC$ 855
Fort Myers
Fort Myers1 stopC$ 571
Boston
Boston1 stopC$ 769
Seattle
Seattle1 stopC$ 394
Nashville
Nashville1 stopC$ 699
San Diego
San Diego2 stopsC$ 627
Atlanta
Atlanta1 stopC$ 404
Fort Lauderdale
Fort Lauderdale1 stopC$ 462
Orlando
Orlando1 stopC$ 448
Las Vegas
Las Vegas2 stopsC$ 372
New York
New York1 stopC$ 483
Los Angeles
Los Angeles2 stopsC$ 441
Miami
Miami1 stopC$ 557
San Francisco
San Francisco1 stopC$ 380
Honolulu
Honolulu2 stopsC$ 855
Fort Myers
Fort Myers1 stopC$ 571
Boston
Boston1 stopC$ 769
Seattle
Seattle1 stopC$ 394
Nashville
Nashville1 stopC$ 699
San Diego
San Diego2 stopsC$ 627
Atlanta
Atlanta1 stopC$ 404

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

Thu, 11 Sep - Thu, 18 Sep
WestJet Logo
6:00 a.m. - 3:01 p.m.YXU-LAS
12h 01m2 stops
WestJet Logo
6:20 p.m. - 5:12 a.m.LAS-YXU
7h 52m1 stop
C$ 372WestJet
Find Deal
Thu, 16 Oct - Sun, 19 Oct
WestJet Logo
6:00 a.m. - 3:01 p.m.YXU-LAS
12h 01m2 stops
WestJet Logo
8:00 a.m. - 7:07 p.m.LAS-YXU
8h 07m1 stop
C$ 389WestJet
Find Deal
Sat, 27 Sep - Sat, 4 Oct
WestJet Logo
8:00 p.m. - 12:59 p.m.YXU-SEA
19h 59m1 stop
WestJet Logo
8:40 a.m. - 7:07 p.m.SEA-YXU
7h 27m1 stop
C$ 394WestJet
Find Deal
Sat, 27 Sep - Sat, 4 Oct
WestJet Logo
6:00 a.m. - 12:35 p.m.YXU-SEA
33h 35m2 stops
WestJet Logo
8:40 a.m. - 7:07 p.m.SEA-YXU
7h 27m1 stop
C$ 405WestJet
Find Deal
Mon, 1 Dec - Thu, 30 Apr
Air Canada Logo
5:40 p.m. - 11:30 p.m.YXU-MCO
5h 50m1 stop
Air Canada Logo
11:00 a.m. - 5:03 p.m.MCO-YXU
6h 03m1 stop
C$ 448Air Canada
Find Deal
Mon, 1 Dec - Thu, 30 Apr
Air Canada Logo
9:25 a.m. - 3:15 p.m.YXU-MCO
5h 50m1 stop
Air Canada Logo
8:00 a.m. - 5:03 p.m.MCO-YXU
9h 03m2 stops
C$ 455Air Canada
Find Deal
Sun, 21 Sep - Mon, 29 Sep
United Airlines Logo
10:00 a.m. - 9:48 p.m.YXU-LAS
14h 48m2 stops
United Airlines Logo
12:59 a.m. - 3:17 p.m.LAS-YXU
11h 18m2 stops
C$ 536United Airlines
Find Deal
Wed, 3 Sep - Mon, 8 Sep
United Airlines Logo
9:55 a.m. - 8:24 p.m.YXU-LAS
13h 29m2 stops
United Airlines Logo
12:59 a.m. - 3:17 p.m.LAS-YXU
11h 18m2 stops
C$ 538United Airlines
Find Deal
Mon, 1 Dec - Thu, 30 Apr
 Logo
9:25 a.m. - 9:47 p.m.YXU-MCO
12h 22m2 stops
 Logo
8:00 a.m. - 9:18 p.m.MCO-YXU
13h 18m2 stops
C$ 565
Find Deal
Sat, 27 Sep - Fri, 3 Oct
 Logo
8:00 p.m. - 9:29 p.m.YXU-LAS
28h 29m1 stop
 Logo
12:47 a.m. - 7:07 p.m.LAS-YXU
15h 20m2 stops
C$ 567
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$ 350 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$ 350.

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$ 479, prices are generally cheapest when you fly direct.

Good to know

Low seasonJuly
Cheapest flightC$ 197
Best time to beat the crowds (13% less expensive on average)
Most popular time to fly and prices are also 11% 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.

  • 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 8915 reviews
7.3Comfort
7.1Entertainment
8.1Crew
6.6Food
7.7Boarding
Airline reviews

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

10.0 ExcellentCollins, Aug 2025YEG - IAH
Read more United Airlines reviews

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.

Michael, our FA was very attentive, even finding me a chocolate brownie from economy class when the dessert selections were all dairy based. ( intolerant, not allergic so don’t usually need to order dairy free)

We tried to upgrade to economy premium but were told this was not possible as we had booked through United Airlines (and Air Canada was operating the flight). This seemed silly given there was ample space in economy premium. Additionally, we had to wait almost 1.5 hours upon arrival to taxi to the gate. Otherwise, the crew were very pleasant and passengers were friendly.

Technology issues at the bag-check counter caused a delay, and we were unable to check out our bags, ultimately missing our flight. They offered no assistance other than telling us to book another flight out of Calgary. We arrived with plenty of time; if there hadn't been an issue with the kiosk and the length of the lines due to the technical issues, we could have made it home.

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.

Worst check in and bag drop off experience. Staff were incredibly rude given that it’s the WestJet system that is faulty.

The staff at the airport and on the plane were wonderful I especially wanna acknowledge the staff who boarded us at the Calgary airport. The women who helped us board at the airport were incredible… they were so kind and sweet…I very happy with WestJet and I am hoping I can fly more often to Canada.

We were happy with our experience. The price for tickets was much less than Delta and we actually took off and landed a little ahead of scheduled times.

Seat back entertainment monitors would be nice. We did enjoy the In-Flight WiFi.

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.

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

Late departing. Late arriving. More worried about limiting bags on board. Free beer and wine a nice surprise.

Flight got delayed for no reason. And Air Canada was doing 3 boardings via the same gate. It was chaotic!

Wonderful airline. All staff were pleasant and helpful. What is sad is that it wasn’t grand gestures just everyday pleasantness and friendliness that are missing from the other airlines I have flown recently.

Friendly efficient crew, but plane had no way to charge phone. That is a near necessity with today’s travel where we carry out travel documents on our phones.

Orlando to Canada, despite being close and an international flight, the plane was not at all comfortable. It felt like the chair was being pushed forward, in addition to not having a TV and having to choose from a tiny glass of drink, for example, water or soda. I couldn't have both. When I asked the flight attendant for an extra glass of water, she looked at me with an ugly face. This is ridiculous. They don't want to give water to passengers. I will never fly with this airline again in my life.

Horrible, we were on a little DeHaviland 400 that was really small and shaky. I am 5' 4" and I had to duck my head to get in it felt like an old war plane.

In a nutshell, my bag, the one I have to pay for, because now you can’t even bring a carry on, did not make it. I am still waiting for an update. The fact that not only were have to pay for it, but on top of that we are stuck without getting it, it’s ridiculous..

This was an excellent experience for a very short flight.

No space in overhead bin, one cookie, 2 oz of juice - is not customer service.

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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