Cheap flights from London to Ontario

Flights on this route run highest at the peak of summer and through the winter holiday period, when transatlantic demand spikes. The cheap end of the year begins in the autumn and keeps falling into March, which is the cheapest month here. For a London to Ontario booking, aim at March, and a midweek departure date helps more than which airline you fly.

The difference a traveller feels between the airlines on this route is the connection, not the cabin. British Airways and United Airlines handle the Atlantic leg on the common routings, Lufthansa and Brussels Airlines add a European stop, and Air Canada or WestJet bring a Canadian one. Air Dolomiti appears as the European feeder on some Lufthansa bookings. Avianca and Edelweiss Air show up as connecting options on certain dates, with American Airlines often flying the final US leg. What comes with the fare - checked luggage, seat choice, a meal - differs by airline, so read the baggage rules before you pick.

If you land at LA/Ontario International late in the day, the first thing to know is that the airport sits about an hour east of downtown Los Angeles. The usual ways into town are a hire car, a rideshare or the shuttle services, and late arrivals make the shuttle less convenient, so a car or rideshare is the safer bet. Ontario is a small, easy airport compared with LAX, which is exactly why many people choose it - you clear the terminal quickly and the roads out of it are straightforward.

Currency

USD ($)

Power sockets

Type A, B · 120 V

Language

Samoan, Hawaiian, Chamorro, Carolinian, Spanish

Emergency number

911

Driving side

right

Calling code

+1

Internet domain

.us

Population of Ontario

175 k (2020)

Time zone

UTC-07 (America/Los_Angeles)

Country facts: Wikidata

• Check that your passport is valid for the United States and that you hold the visa or travel authorisation you need before booking anything.
• Confirm which London airport your ticket names - London City, Gatwick, Heathrow, Luton or Stansted - and plan the transfer to it.
• See whether the fares you compare include checked luggage on the US leg, since many connections charge for it separately.
• When the route runs on separate tickets, allow a long connection so a delay on the first flight does not cost you the second.
• Book March dates if you want the cheap end of the year here, and compare midweek departures against weekend ones.