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. Visit our flight page for the latest deals!>/a>

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. Visit our flight page for the latest deals!>/a>

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. Visit our flight page for the latest deals!>/a>

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. Visit our flight page for the latest deals!>/a>

Which airlines provide the cheapest flights from London to the United States?

In the past 3 days, the cheapest round-trip tickets from London to the United States were found on WestJet ($383) and Air Canada ($423).

Which airlines provide the cheapest flights from London to the United States?

In the past 3 days, the cheapest round-trip tickets from London to the United States were found on WestJet ($383) and Air Canada ($423).

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 New York , which takes 4h 02m , Boston , which takes 4h 29m, and New York , which takes 4h 38m.

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 New York , which takes 4h 02m , Boston , which takes 4h 29m, and New York , which takes 4h 38m.

$203 CHEAP FLIGHTS from London to the United States

KAYAK searches hundreds of travel sites at once for deals on flights to the United States

...and more

Travelers love KAYAK

41,299,237 searches in the past 7 days on KAYAK

Save 24% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Free to useThere are no hidden charges or fees.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Flight Deals

One-wayRound-trip

Newark1 stop$456

Los Angeles1 stop$382

Las Vegas1 stop$442

San Francisco1 stop$324

Miami1 stop$470

Boston1 stop$508

Fort Lauderdale1 stop$451

Seattle1 stop$375

Tampa1 stop$377

San Diego1 stop$374

Honolulu2 stops$597

Newark1 stop$456

Los Angeles1 stop$382

Las Vegas1 stop$442

San Francisco1 stop$324

Miami1 stop$470

Boston1 stop$508

Fort Lauderdale1 stop$451

Seattle1 stop$375

Tampa1 stop$377

San Diego1 stop$374

Honolulu2 stops$597

Book Cheap London to the United States Plane Tickets

Discover the best prices for you by selecting your travel dates on KAYAK.

Round-trip

One-way

Last minute

Recent round-trip flight deals from London to the United States

Sat, Jun 6 - Tue, Jun 9

6:10 am - 2:05 pm

YXU

LAX

10h 55m

1 stop

6:05 pm - 5:20 am

LAX

YXU

8h 15m

1 stop

$382WestJet

Sun, Jun 7 - Tue, Jun 9

2:40 pm - 10:05 pm

YXU

LAX

10h 25m

2 stops

6:05 pm - 5:20 am

LAX

YXU

8h 15m

1 stop

$383WestJet

Wed, Jun 3 - Wed, Jul 22

6:10 am - 11:20 am

YXU

LAX

32h 10m

2 stops

6:05 pm - 5:20 am

LAX

YXU

8h 15m

1 stop

$389WestJet

Tue, Jun 2 - Sat, Jun 6

12:20 pm - 8:12 pm

YXU

FLL

7h 52m

1 stop

12:40 pm - 9:38 pm

FLL

YXU

8h 58m

2 stops

$451Air Canada

Tue, Jun 2 - Sat, Jun 6

12:20 pm - 9:37 pm

YXU

FLL

9h 17m

2 stops

12:40 pm - 9:38 pm

FLL

YXU

8h 58m

2 stops

$454Air Canada

Tue, Jun 16 - Thu, Jun 25

3:30 pm - 7:05 pm

YXU

EWR

3h 35m

1 stop

6:30 am - 11:42 am

EWR

YXU

5h 12m

1 stop

$456Air Canada

Tue, Jun 16 - Thu, Jun 25

9:30 am - 1:36 pm

YXU

LGA

4h 06m

1 stop

6:50 am - 11:42 am

LGA

YXU

4h 52m

1 stop

$456Air Canada

Sun, May 24 - Thu, May 28

5:10 am - 2:42 pm

YXU

FLL

9h 32m

2 stops

11:11 am - 9:38 pm

FLL

YXU

10h 27m

2 stops

$494United Airlines

Fri, May 15 - Sun, May 24

12:20 pm - 9:55 pm

YXU

MCO

9h 35m

2 stops

7:00 am - 5:33 pm

MCO

YXU

10h 33m

2 stops

$494United Airlines

Thu, Jun 4 - Sat, Jun 6

5:10 am - 2:03 pm

YXU

MCO

8h 53m

2 stops

6:30 am - 2:58 pm

MCO

YXU

8h 28m

2 stops

$495United 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

No, with an average price for the route of $171, prices are generally cheapest when you fly direct.

Find deals

Low season	March
High season	January
Cheapest flight	$203

Best time to beat the crowds but there is an average 52% increase in price.

Most popular time to fly and prices are also 4% lower on average.

Flight from London to Los Angeles

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.

7.1

Air CanadaOverall score based on 10902 reviews

6.8Entertainment

6.3Food

7.1Comfort

7.8Crew

7.3Boarding

Airline reviews

The seat design in the premium economy section leaves virtually no room under the seat to store a bag or purse. Other than that, it was a great flight. Arrived early.

10.0 ExcellentAnonymous, Mar 2026

YYZ - FLL

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

Airports

Cabin class

Complete your trip

Flights to other cities

Origins

Popular routes

Return flight deals

Information on your arrival and departure airports

London (YXU)

$203 Find Cheap Flights from London to the United States

KAYAK searches hundreds of travel sites at once for deals on flights to the United States

Cheap Flights from London to the United States

Book Cheap London to the United States Plane Tickets

Recent round-trip flight deals from London to the United States

Recent one-way flight deals from London to the United States

Recent last minute flight deals from London to the United States

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.

Can I save money by flying with a layover from London to the United States?

No, with an average price for the route of $171, prices are generally cheapest when you fly direct.

Which airlines provide the cheapest flights from London to the United States?

In the past 3 days, the cheapest round-trip tickets from London to the United States were found on WestJet ($383) and Air Canada ($423).

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 New York, which takes 4h 02m, Boston, which takes 4h 29m, and New York, which takes 4h 38m.

Good to know

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.

Reviews of the top airline flying from London to the United States

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

Information on your arrival and departure airports

Cabin class types available on flights to the United States

Complete your trip to the United States with a hotel stay or car rental

Flights to other popular destinations

Flights from other airports in London to the United States

Flights from London to popular cities in the United States

Find deals for your return flight