Cheap flights from London, Ontario to California from C$ 228
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from London, Ontario to California departing on 11/6. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
Discover deals from 900+ travel sites with momondo.
Save money when you book flights with momondo
Big names, great deals
Big names, great deals
Search 100s of travel sites to compare prices.Filter for what you want
Filter for what you want
Free Wi-Fi? Early arrival? Instantly customize your resultsTrusted and free
Trusted and free
We’re completely free to use - no hidden charges or fees.Price Alerts
Price Alerts
Not ready to book? to track prices.Find the cheapest flights from London, Ontario to California
Cheap round-trip flights
Cheap one-way flights
Cheap last-minute flights
United Airlines flights from London, Ontario to California
Our best United Airlines deals on London, Ontario to California flight tickets
WestJet flights from London, Ontario to California
Our best WestJet deals on London, Ontario to California flight tickets
See travel insights to California from
How to get the cheapest flight ticket from London, Ontario to California
Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip
What is the cheapest month to fly to California?
The cheapest month to fly to California from London, Ontario is in November. Flight prices, which tend to average around C$ 405, are often lower during this time because this is during the off-season. If you’re not able to fly to California in November, then March is your next best option. Flight prices from London, Ontario to California during March average around C$ 421.
What is the cheapest day to depart on your flight to California?
According to our data, Saturday is the cheapest day to fly to California from London, Ontario. The lowest ticket price found for a Saturday departure recently was C$ 454. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. Flights from London, Ontario to California on a Sunday will generally be more expensive and average around C$ 671. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.
What is the cheapest time of day to depart on your flight to California?
Our data shows that the cheapest London, Ontario to California flights are usually those with departure times in the afternoon. Our users have found flights to California in the afternoon for as low as C$ 478. Flights to California are more costly in the morning, with an average ticket price of C$ 566. Departure times in the morning fall within the peak daily travel times, which is why tickets can be more expensive.
How far in advance should I book a flight to California?
You are more likely to see cheaper flights to California from London, Ontario when booking 8 weeks ahead of your departure date. In general, you can expect to find flights to California for around C$ 532 when searching 8 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to California from London, Ontario for as low as C$ 376 on momondo.
What is the cheapest airline that flies from London to California?
Air Canada, United Airlines, and WestJet are the most popular carriers operating from London to California
Which airlines fly to California?
Air Canada, Porter Airlines and WestJet are the top three most popular airlines that fly to California from London, Ontario according to our data. Air Canada is the first choice among our users, with 34% of people opting to fly with this airline when travelling to California. Keep in mind that there are 9 different airlines that fly to California on a routine basis, so you have a few additional options to choose from.
Cheap London, Ontario to California flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from London, Ontario to California
When did momondo last update prices for flights from London Airport to California?
Prices for flights from London Airport to California refresh daily.
How many operators does momondo search for flights from London Airport to California?
The number of operators available for flights from London Airport to California is 3 as of May 2025.
How old do you have to be to fly from London Airport to California?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from London Airport to California.
What documentation or ID do you need to fly to California?
The travel and health documents required for your trip to California can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at California. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
Best airlines flying from London, Ontario to California
Compare and see reviews for airlines that fly from London, Ontario to California with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom C$ 285 | Free Cancellation | Rating 7.2 2,826 reviews | |||
| PriceFrom C$ 308 | Free Cancellation | Rating 7.4 8,696 reviews | |||
| PriceFrom C$ 331 | Free Cancellation | Rating 7.0 9,252 reviews |
Why use momondo?
Why should I use momondo to find a flight deal from London to California?
It is quick and easy to find London to California flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to California that suits you.
Can I find flights from London to California with flexible booking policies on momondo?
Flights from London to California with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.
How can momondo help me find flights from London to California?
Once all potential London to California flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.
I’m not ready to book a flight from London to California right now. Can momondo alert me if prices change?
Of course. momondo tracks the price of London to California flights. All you need is a valid email address and we will do the rest; it is that quick and easy.