C$ 194 Find Cheap Flights from the United States to London

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight to London departing on 25/6. 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

KAYAK searches hundreds of travel sites at once for deals on flights to London

 
These are the airlines KAYAK users have selected most often from within our search results for flights to London, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results for flights to London, as well as popular online travel agencies
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Flights Deals

Cheap Flights from the United States to London

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from the United States to London 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 the United States to London

Sun, 13 Jul - Sun, 20 Jul
WestJet Logo
6:05 p.m. - 5:14 a.m.SFO-YXU
8h 09m1 stop
WestJet Logo
8:00 p.m. - 9:25 p.m.YXU-SFO
28h 25m1 stop
C$ 405WestJet
Find Deal
Tue, 9 Sep - Thu, 25 Sep
WestJet Logo
7:30 a.m. - 7:07 p.m.SFO-YXU
8h 37m1 stop
WestJet Logo
6:00 a.m. - 11:54 a.m.YXU-SFO
8h 54m1 stop
C$ 424WestJet
Find Deal
Fri, 11 Jul - Tue, 15 Jul
WestJet Logo
6:05 p.m. - 5:14 a.m.SFO-YXU
8h 09m1 stop
WestJet Logo
8:00 p.m. - 12:05 p.m.YXU-SFO
19h 05m1 stop
C$ 429WestJet
Find Deal
Tue, 9 Sep - Sat, 27 Sep
Air Canada Logo
4:35 p.m. - 9:17 a.m.SFO-YXU
13h 42m2 stops
Air Canada Logo
3:35 p.m. - 8:53 p.m.YXU-SFO
8h 18m1 stop
C$ 438Air Canada
Find Deal
Tue, 9 Sep - Fri, 26 Sep
Air Canada Logo
4:35 p.m. - 9:17 a.m.SFO-YXU
13h 42m2 stops
Air Canada Logo
6:15 a.m. - 3:28 p.m.YXU-SFO
12h 13m2 stops
C$ 444Air Canada
Find Deal
Fri, 11 Jul - Mon, 14 Jul
 Logo
6:05 p.m. - 5:14 a.m.SFO-YXU
8h 09m1 stop
 Logo
9:45 p.m. - 9:30 a.m.YXU-SFO
14h 45m1 stop
C$ 466
Find Deal
Sun, 13 Jul - Sun, 20 Jul
 Logo
7:30 a.m. - 9:00 p.m.SFO-YXU
34h 30m3 stops
 Logo
8:00 p.m. - 9:25 p.m.YXU-SFO
28h 25m1 stop
C$ 511
Find Deal
Fri, 25 Jul - Sat, 2 Aug
United Airlines Logo
12:30 a.m. - 3:02 p.m.SFO-YXU
11h 32m2 stops
United Airlines Logo
5:45 p.m. - 12:57 a.m.YXU-SFO
10h 12m2 stops
C$ 570United Airlines
Find Deal
Fri, 11 Jul - Tue, 15 Jul
United Airlines Logo
10:55 p.m. - 3:02 p.m.SFO-YXU
13h 07m2 stops
United Airlines Logo
6:15 a.m. - 1:40 p.m.YXU-SFO
10h 25m2 stops
C$ 585United Airlines
Find Deal
Fri, 11 Jul - Sun, 13 Jul
Delta Logo
2:32 p.m. - 5:14 a.m.SJC-YXU
11h 42m2 stops
Delta Logo
6:00 a.m. - 4:52 p.m.YXU-SJC
13h 52m2 stops
C$ 1,004Delta
Find Deal

Expert advice for your flight to London

 
Snippets provided in this section are AI-generated based on a summarisation of KAYAK-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Airlines
Air Canada

Air Canada offers priority check-in for higher fare classes and elite status members.


Air Canada's Preferred Economy seats offer up to four extra inches of legroom for an additional fee.

Read more about Air Canadaby Stefanie Waldek
WestJet

WestJet's Premium cabin offers recliner-style seats with up to seven inches of extra legroom.


WestJet's Extended Comfort seats provide three to six inches of extra legroom and priority boarding.

Read more about WestJetby Stefanie Waldek
United Airlines

United's Economy Plus seats provide up to six inches more legroom than standard economy seats.


United offers Priority Boarding for purchase, placing you in Zone 2 to secure overhead bin space.

Our travel experts
Stefanie Waldek

Stefanie Waldek

Expert on Air Canada, WestJet and United Airlines

Stefanie Waldek

Stefanie Waldek

Stefanie Waldek is a freelance space, travel, and design writer based in Saratoga Springs, NY. Her words have appeared in Space.com, Travel + Leisure, Condé Nast Traveler, Architectural Digest, and House Beautiful, among other publications. An expert in aviation and expedition cruising, Stefanie is frequently up in the air or on the sea, likely en route to Antarctica or the Arctic.

Read more
Useful Info

KAYAK's insights & trends for flights to London

Get data-powered insights and trends into flights to London to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest flight to London?

These are the best round-trip prices found by users searching on KAYAK in the last 72 hours.

In the last 3 days, the cheapest flight deal to London was found on the route from San Francisco, at C$ 552 return. The most popular connection is from Orlando to London and KAYAK users have found round-trip deals for as low as C$ 459 in the last 3 days.

Good to know

Low seasonApril
High seasonJuly
Cheapest flightC$ 194
Best time to beat the crowds (15% less expensive on average)
Most popular time to fly (32% more expensive on average)
Flight from San Francisco to London

FAQs - booking London flights

  • What is the cheapest flight to London?

    In the last 3 days, the cheapest flight deal to London was found on the route from San Francisco, at C$ 552 return. The most popular connection is from Orlando to London and KAYAK users have found round-trip deals for as low as C$ 459 in the last 3 days.

  • How far is London Airport from central London?

    There are 9 km between London downtown and London Airport.

  • What is the name of London’s airport?

    There is only 1 airport in London, called London Airport (YXU). It can also be referred to as London or London Intl.

  • What is the cheapest day to fly to London?

    Based on KAYAK data, the cheapest day to fly to London is Friday where round-trip tickets can be as cheap as C$ 504. On the other hand, the most expensive day to fly is Thursday, where round-trip prices are C$ 1,371 on average.

  • How does KAYAK find such low prices on flights to London?

    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 to London.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket to London?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to London is likely to change within 7 days, so travellers know whether to wait or book now.

  • What is the Hacker Fare option on flights to London?

    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 to London 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 to London?

    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 to London up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • How many direct flights to London are there each week?

    Each week there are around 45 direct flights from within United States to London. The most common day for departures is Friday, with 16% of flights taking off on this day.

Top tips for finding cheap flights to London

  • Enter your preferred departure airport and travel dates into the search form above to unlock the latest London flight deals.

Travelling to a place near London?

Book flights to London if you plan to visit one of these locations
Grand Bend
Port Stanley

Everything you need to know for your flight to London

Information on the airport you'll fly into in London

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