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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 5 daysCheap 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, 23 Nov - Mon, 30 Nov
10:15 a.m. - 1:25 p.m.YXU London-FLL Fort Lauderdale
3h 10mdirect
2:40 p.m. - 5:45 p.m.FLL Fort Lauderdale-YXU London
3h 05mdirect
C$ 170Porter Airlines
Sun, 29 Nov - Mon, 30 Nov
10:15 a.m. - 1:25 p.m.YXU London-FLL Fort Lauderdale
3h 10mdirect
2:40 p.m. - 5:45 p.m.FLL Fort Lauderdale-YXU London
3h 05mdirect
C$ 177Porter Airlines
Mon, 30 Nov - Mon, 7 Dec
10:15 a.m. - 1:25 p.m.YXU London-FLL Fort Lauderdale
3h 10mdirect
2:40 p.m. - 5:45 p.m.FLL Fort Lauderdale-YXU London
3h 05mdirect
C$ 184Porter Airlines
Wed, 18 Nov - Mon, 7 Dec
10:15 a.m. - 1:25 p.m.YXU London-FLL Fort Lauderdale
3h 10mdirect
2:40 p.m. - 5:45 p.m.FLL Fort Lauderdale-YXU London
3h 05mdirect
C$ 202Porter Airlines
Thu, 19 Nov - Thu, 26 Nov
10:00 a.m. - 12:55 p.m.YXU London-MCO Orlando
2h 55mdirect
4:44 p.m. - 5:00 p.m.MCO Orlando-YXU London
24h 16m2 stops Atlanta Hartsfield-Jackson Fort Lauderdale
C$ 372Multiple Airlines
Mon, 23 Nov - Mon, 30 Nov
9:05 p.m. - 10:52 a.m.YXU London-FLL Fort Lauderdale
13h 47m1 stop Toronto Pearson Intl
2:40 p.m. - 5:45 p.m.FLL Fort Lauderdale-YXU London
3h 05mdirect
C$ 418Multiple Airlines
Mon, 23 Nov - Mon, 30 Nov
9:05 p.m. - 2:21 p.m.YXU London-FLL Fort Lauderdale
17h 16m2 stops Toronto Pearson Intl Montreal Pierre Elliott Trudeau Intl
2:40 p.m. - 5:45 p.m.FLL Fort Lauderdale-YXU London
3h 05mdirect
C$ 421Multiple Airlines
Tue, 9 Mar - Mon, 15 Mar
5:30 a.m. - 11:57 a.m.YXU London-SAN San Diego
9h 27m1 stop Toronto Pearson Intl
4:45 p.m. - 8:37 a.m.SAN San Diego-YXU London
12h 52m2 stops Vancouver Intl Toronto Pearson Intl
C$ 522Air Canada
Tue, 9 Mar - Mon, 15 Mar
5:30 a.m. - 3:55 p.m.YXU London-SAN San Diego
13h 25m2 stops Toronto Pearson Intl Vancouver Intl
4:45 p.m. - 8:37 a.m.SAN San Diego-YXU London
12h 52m2 stops Vancouver Intl Toronto Pearson Intl
C$ 529Air Canada
Wed, 3 Feb - Thu, 4 Mar
5:30 a.m. - 9:40 p.m.YXU London-HNL Honolulu
21h 10m2 stops Toronto Pearson Intl Vancouver Intl
10:55 p.m. - 9:49 p.m.HNL Honolulu-YXU London
17h 54m2 stops Vancouver Intl Toronto Pearson Intl
C$ 591Air Canada
Recent one-way flight deals from London to the United States
Fri, 19 Feb
6:15 a.m. - 9:25 a.m.YXU London-FLL Fort Lauderdale
3h 10mdirect
C$ 144Porter Airlines
Sun, 29 Nov
10:15 a.m. - 1:25 p.m.YXU London-FLL Fort Lauderdale
3h 10mdirect
C$ 148Porter Airlines
Sat, 28 Nov
10:00 a.m. - 12:55 p.m.YXU London-MCO Orlando
2h 55mdirect
C$ 155Porter Airlines
Thu, 26 Nov
10:00 a.m. - 12:55 p.m.YXU London-MCO Orlando
2h 55mdirect
C$ 165Porter Airlines
Mon, 30 Nov
10:15 a.m. - 9:00 a.m.YXU London-ATL Atlanta Hartsfield-Jackson
22h 45m1 stop Fort Lauderdale
C$ 199Multiple Airlines
Mon, 30 Nov
10:15 a.m. - 9:08 p.m.YXU London-ATL Atlanta Hartsfield-Jackson
34h 53m2 stops Fort Lauderdale Indianapolis
C$ 243Multiple Airlines
Tue, 2 Feb
7:10 a.m. - 11:03 p.m.YXU London-FLL Fort Lauderdale
15h 53m2 stops Orlando Atlanta Hartsfield-Jackson
C$ 301Multiple Airlines
Mon, 30 Nov
9:05 p.m. - 9:40 p.m.YXU London-HNL Honolulu
29h 35m2 stops Toronto Pearson Intl Vancouver Intl
C$ 335Air Canada
Tue, 15 Dec
5:30 a.m. - 11:33 a.m.YXU London-FLL Fort Lauderdale
6h 03m1 stop Toronto Pearson Intl
C$ 346Air Canada
Tue, 15 Dec
5:30 a.m. - 11:33 a.m.YXU London-FLL Fort Lauderdale
6h 03m1 stop Toronto Pearson Intl
C$ 349Air Canada
Recent last minute flight deals from London to the United States
Sat, 24 Oct - Sat, 31 Oct
3:30 p.m. - 8:49 p.m.YXU London-MIA Miami
5h 19m1 stop Toronto Pearson Intl
8:55 p.m. - 9:37 a.m.MIA Miami-YXU London
12h 42m1 stop Toronto Pearson Intl
C$ 946Air Canada
Sat, 24 Oct - Sat, 31 Oct
3:30 p.m. - 8:49 p.m.YXU London-MIA Miami
5h 19m1 stop Toronto Pearson Intl
8:00 a.m. - 7:52 p.m.MIA Miami-YXU London
11h 52m2 stops Montreal Pierre Elliott Trudeau Intl Toronto Pearson Intl
C$ 953Air Canada
Sat, 24 Oct - Sat, 31 Oct
9:05 a.m. - 10:17 p.m.YXU London-MIA Miami
13h 12m2 stops Toronto Pearson Intl Montreal Pierre Elliott Trudeau Intl
8:00 a.m. - 7:52 p.m.MIA Miami-YXU London
11h 52m2 stops Montreal Pierre Elliott Trudeau Intl Toronto Pearson Intl
C$ 991Air Canada
Sun, 25 Oct - Tue, 27 Oct
9:15 a.m. - 8:06 p.m.YXU London-FLL Fort Lauderdale
10h 51m2 stops Toronto Pearson Intl Montreal Pierre Elliott Trudeau Intl
12:55 p.m. - 7:52 p.m.FLL Fort Lauderdale-YXU London
6h 57m1 stop Toronto Pearson Intl
C$ 1,066Air Canada
Sun, 25 Oct - Tue, 27 Oct
9:15 a.m. - 8:08 p.m.YXU London-FLL Fort Lauderdale
10h 53m1 stop Toronto Pearson Intl
12:55 p.m. - 7:52 p.m.FLL Fort Lauderdale-YXU London
6h 57m1 stop Toronto Pearson Intl
C$ 1,112Air Canada
Sun, 25 Oct - Tue, 27 Oct
9:15 a.m. - 8:06 p.m.YXU London-FLL Fort Lauderdale
10h 51m2 stops Toronto Pearson Intl Montreal Pierre Elliott Trudeau Intl
1:50 p.m. - 8:37 a.m.FLL Fort Lauderdale-YXU London
18h 47m2 stops Montreal Pierre Elliott Trudeau Intl Toronto Island
C$ 1,121Air Canada
Sat, 24 Oct - Tue, 27 Oct
9:05 a.m. - 4:54 p.m.YXU London-FLL Fort Lauderdale
7h 49m2 stops Toronto Pearson Intl Chicago O'Hare Intl
9:00 a.m. - 7:52 p.m.FLL Fort Lauderdale-YXU London
10h 52m2 stops Houston George Bush Intcntl Toronto Pearson Intl
C$ 1,353United Airlines
Wed, 21 Oct - Sat, 24 Oct
6:10 a.m. - 5:00 p.m.YXU London-SEA Seattle/Tacoma Intl
13h 50m2 stops Calgary Vancouver Intl
7:35 p.m. - 5:20 a.m.SEA Seattle/Tacoma Intl-YXU London
6h 45m1 stop Calgary
C$ 1,459WestJet
Wed, 21 Oct - Sat, 24 Oct
6:10 a.m. - 5:00 p.m.YXU London-SEA Seattle/Tacoma Intl
13h 50m2 stops Calgary Vancouver Intl
7:35 p.m. - 5:20 a.m.SEA Seattle/Tacoma Intl-YXU London
6h 45m1 stop Calgary
C$ 1,460WestJet
Tue, 20 Oct - Thu, 22 Oct
6:10 a.m. - 5:00 p.m.YXU London-SEA Seattle/Tacoma Intl
13h 50m2 stops Calgary Vancouver Intl
7:35 p.m. - 5:20 a.m.SEA Seattle/Tacoma Intl-YXU London
6h 45m1 stop Calgary
C$ 1,461WestJet
Recent direct flight deals from London to the United States
Mon, 23 Nov - Mon, 30 Nov
10:15 a.m. - 1:25 p.m.YXU London-FLL Fort Lauderdale
3h 10mdirect
2:40 p.m. - 5:45 p.m.FLL Fort Lauderdale-YXU London
3h 05mdirect
C$ 170Porter Airlines
Sun, 29 Nov - Mon, 30 Nov
10:15 a.m. - 1:25 p.m.YXU London-FLL Fort Lauderdale
3h 10mdirect
2:40 p.m. - 5:45 p.m.FLL Fort Lauderdale-YXU London
3h 05mdirect
C$ 177Porter Airlines
Mon, 30 Nov - Mon, 7 Dec
10:15 a.m. - 1:25 p.m.YXU London-FLL Fort Lauderdale
3h 10mdirect
2:40 p.m. - 5:45 p.m.FLL Fort Lauderdale-YXU London
3h 05mdirect
C$ 184Porter Airlines
Wed, 18 Nov - Mon, 7 Dec
10:15 a.m. - 1:25 p.m.YXU London-FLL Fort Lauderdale
3h 10mdirect
2:40 p.m. - 5:45 p.m.FLL Fort Lauderdale-YXU London
3h 05mdirect
C$ 202Porter Airlines
Wed, 18 Nov - Mon, 14 Dec
10:15 a.m. - 1:25 p.m.YXU London-FLL Fort Lauderdale
3h 10mdirect
2:40 p.m. - 5:45 p.m.FLL Fort Lauderdale-YXU London
3h 05mdirect
C$ 222Porter Airlines
Sun, 24 Jan - Mon, 25 Jan
6:15 a.m. - 9:25 a.m.YXU London-FLL Fort Lauderdale
3h 10mdirect
10:40 a.m. - 1:45 p.m.FLL Fort Lauderdale-YXU London
3h 05mdirect
C$ 232Porter Airlines
Mon, 11 Jan - Fri, 15 Jan
6:15 a.m. - 9:25 a.m.YXU London-FLL Fort Lauderdale
3h 10mdirect
10:40 a.m. - 1:45 p.m.FLL Fort Lauderdale-YXU London
3h 05mdirect
C$ 237Porter Airlines
Mon, 7 Dec - Fri, 11 Dec
10:15 a.m. - 1:25 p.m.YXU London-FLL Fort Lauderdale
3h 10mdirect
1:55 p.m. - 5:00 p.m.FLL Fort Lauderdale-YXU London
3h 05mdirect
C$ 249Porter Airlines
Wed, 27 Jan - Wed, 27 Jan
6:15 a.m. - 9:25 a.m.YXU London-FLL Fort Lauderdale
3h 10mdirect
7:45 p.m. - 10:50 p.m.FLL Fort Lauderdale-YXU London
3h 05mdirect
C$ 250Porter Airlines
Mon, 25 Jan - Wed, 27 Jan
6:15 a.m. - 9:25 a.m.YXU London-FLL Fort Lauderdale
3h 10mdirect
7:45 p.m. - 10:50 p.m.FLL Fort Lauderdale-YXU London
3h 05mdirect
C$ 250Porter 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.
Prices
Airlines
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 5 days was to Orlando, at C$ 343 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 5 days was C$ 343.
What is the cheapest time of day to fly to the United States?
The average price for all round-trip flights from London to the United States depending on the time of departure, clicked by users on KAYAK in the last 2 weeks.
The cheapest time of day to fly to the United States is generally in the morning, when round-trip flights cost C$ 335 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$ 335.
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$ 387, 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 December, when tickets cost C$ 534 (return) on average. On the other hand, the most expensive months are August and October, when the average cost of round-trip tickets is C$ 1,028 and C$ 916 respectively.
How long does a flight from London to the United States take?
The duration of a flight to the United States depends on your arrival airport. The shortest routes to the United States from London are to Orlando, which takes 2h 55m, Boston, which takes 4h 42m, and New York, which takes 5h 13m.
Which cabin class options are there for flights between London and United States?
The average price of round-trip flights for each cabin class for the route found by users searching on KAYAK over the last 2 weeks.
There is only one cabin class option available for the route, which is Economy. Perform a search on KAYAK to find the latest prices and availability for all cabin fares, which differ across airlines.
What’s the earliest departure time from London to the United States?
The earliest flight from London to the United States departs at 9:30 am, landing in Fort Lauderdale at 12:40 pm.
What’s the latest departure time from London to the United States?
If you prefer to fly at night, the last flight from London to the United States jets off at 10:15 am and lands in Fort Lauderdale at 1:25 pm.
Good to know
Low season | August |
|---|---|
High season | January |
Cheapest flight | C$ 144 |
FAQs - booking United States flights
Reviews of the top 3 airlines flying from London to the United States
8.0
Porter AirlinesOverall score based on 468 reviews
8.2Boarding
7.6Food
7.0Entertainment
8.0Comfort
8.6Crew
Airline reviews
A very comfortable flight, an additional wash room could have made it almost perfect.
10.0 ExcellentAnonymous, Aug 2026
A very comfortable flight, an additional wash room could have made it almost perfect.
Look, I understand that Kayak doesn't know I cancelled my flight on Porter. So I didn't actually fly yesterday. My main disappointment is with Porter ticket fare policies, and maybe you can pass this on to them: At my employer's request, I had booked a full fare ticket with no change fees since my trip to Toronto would likely be extended. Indeed, when I went to change my flight home to a later date, I was told the Fare Difference would cost an additional $550. So much for no change fees lol! While I had the agent on the line, I hopped over to Kayak, searched for new flights on the date in question, and saw a one-way ticket that got me home for only $355. So I got reimbursed about $450for the unused half of my roundtrip and bought a new ticket for $355. What good is a full fare / no change fee ticket if they screw you with "fare difference" BS. I'm still flying home on Porter Airlines but they just lost a hundred bucks with their stupid shenanigans.
I flew with Porter yesterday and overall had a positive experience. The flight was delayed, but the airline did a good job keeping passengers informed with frequent updates throughout the process. My biggest challenge was actually in Terminal 3, where the speaker system wasn’t very clear. It was often difficult to hear the announcements, which made it harder to follow updates at the gate. On board, the experience improved significantly. The aircraft felt very new and well maintained, and the seats were surprisingly comfortable for a short-haul flight. One of the flight attendants seemed a little disengaged, but the other was excellent—friendly, professional, and a pleasure to interact with. Despite the delay, the comfortable aircraft, clear communication from Porter, and positive onboard service made for a good overall experience.
It was okay. Had a thing with the front desk, she had me repack my suitcases to have them be under the weight restrictions, but then the other one was overweight, she argued with me about it when there were tons of people in line. Wasn’t great.
Organization and the adjusted times but the snacks could be of a bigger portion
Our flight was delayed by a bit. I appreciated that we were kept informed on why periodically. Boarding was fine. I overheard one flight attendant sounding very rude to a passenger who was not paying attention to the safety demonstration. The snacks were minimal as it was a short flight. There was no entertainment. Overall the flight was good back to LGA.
All good the seats a little tight and no I pad screen
Just an evening before they canceled my ticket and offered me ticket costing 3 x times more than. I will not fall prey to these scams,Will never book through kayak now. Such a bad experience.
was okay except.. 1)the porter check in webpage doesn't let you print your boarding pass from home 2)that there was a 90 min cut off for checking in on the kiosk in general, and to print a boarding pass, even tho i checked in online already....
It was amazing although they did bump us up to the front which gave us more leg room and a meal. The service was great! The staff were friendly. :)
Very efficient. Economy is what economy is. Wish it had been direct. Excellent setup in Newark for commuters and access to charging stations and wifi Flight could’ve had free wifi
My flight was cancelled and United Airlines could not rebook or help. My whole trip was then cancelled and I could not go to the funeral I needed to get to.
The website check in was poor. Baggage fees were in US dollars but registered in Canadian dollars. The site would not accept my credit card. Scanning the passport was the worst. Someone from United needs to try the process. I’m not a novice with tech and I have to say this was a bad experience. Everything else was great.
Prefer not to have an almost 3 hour delay with useless communication that wasn't accurate.
Boarding was smooth and efficient. The only food was some pretzels, but it was a short flight. Not much to order if you were hungry.
Crew were welcoming, accommodating and they worked hard to find places for all carry on.
Seats very comfortable; service efficient and pleasant; flight was on-time; boarding organized.
Starlink is great Crew was polite Business class didn’t get a welcome drink just water and snacks were ok
very average service no complimentary alcoholics drinks unlike other airlines such as Porter airlines No decent seats available during check-in time the day before
Hopped on time for the flight only to get deplaned and delayed another 2.5 hours.
No problems other than no seat back entertainment. Everyone was very pleasant
It's always very chill when flying to/from Billy Bishop airport and a fabulous view of Toronto on the way up/down. Free beer too on the plane!
Better this time, the pilot communicated to passengers of delay
The usb ports to charge phones laptops did not work.
Staff never asked passengers to bring their seat backs forward during landing. Was hoping to get a little relief from the passenger in front of me (I have long legs that I cannot stow in the overhead). Otherwise the flight was very pleasant.
Exorbitantly overpriced ticket. Flight was delayed as per usual with air Canada and there was zero refund or compensation.
Too many delays. Seats too small. A budget airline. Will never fly Air Canada again.
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.
It might have been closer to being on time. Maybe next time I could fly from London to Toronto?
Air Canada canceled my flight last minute and I gave me next’s day night time my flight. No accommodations at all. I have a function on Xmas eve. So I had to took rental car last minute.i never ever book a ticket with Canadian airlines at all.
More options for your flight from London to the United States
Complete your trip to the United States with a hotel stay or car rental
Information on your arrival and departure airports
Cabin class types available on flights to the United States
Cabin classes available on flights to the United States. Prices are the lowest found on KAYAK over the last 7 days. Price and availability is not guaranteed.
Flights from other airports in London to the United States
Flights from all airports in London to the United States. Prices are the lowest found on KAYAK over the last 7 days. Price and availability are not guaranteed.
Flights to other popular destinations
The most popular flights on KAYAK according to clicks in the last 2 weeks. Prices are the lowest found on KAYAK over the last 7 days. Price and availability are not guaranteed.
Flights from London to popular regions in the United States
Flights from London to popular cities in the United States
Flights from London to Anchoragefrom C$ 1,741
Flights from London to Bostonfrom C$ 1,241
Flights from London to Fort Lauderdalefrom C$ 181
Flights from London to Fort Myersfrom C$ 861
Flights from London to Honolulufrom C$ 1,166
Flights from London to Key Westfrom C$ 1,893
Flights from London to Las Vegasfrom C$ 671
Flights from London to Los Angelesfrom C$ 710
Flights from London to Miamifrom C$ 796
Flights from London to Myrtle Beachfrom C$ 1,225
Flights from London to Nashvillefrom C$ 751
Flights from London to New Yorkfrom C$ 820
Flights from London to Orlandofrom C$ 278
Flights from London to Palm Springsfrom C$ 722
Flights from London to Pensacolafrom C$ 1,351
Flights from London to Portlandfrom C$ 2,065
Flights from London to San Diegofrom C$ 803
Flights from London to San Franciscofrom C$ 739
Flights from London to San Josefrom C$ 1,620
Flights from London to Sarasotafrom C$ 1,060
Flights from London to Seattlefrom C$ 794
Flights from London to Tallahasseefrom C$ 2,478
Flights from London to Tampafrom C$ 654