Cheap flights from the United Kingdom to Los Angeles from £277
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from the United Kingdom to Los Angeles departing on 13/5. 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? Stopover? Instantly customise your results.Trusted 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 the United Kingdom to Los Angeles
Recent return flight deals from the United Kingdom to Los Angeles
Recent one-way flight deals from the United Kingdom to Los Angeles
Recent last minute flight deals from the United Kingdom to Los Angeles
Delta flights from United Kingdom to Ontario
Our best Delta deals on United Kingdom to Ontario flight tickets
British Airways flights from United Kingdom to Ontario
Our best British Airways deals on United Kingdom to Ontario flight tickets
See travel insights to Los Angeles from
How to get the cheapest flight ticket from United Kingdom to Ontario
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 Ontario?
The month of February is, on average, the cheapest month to fly to Ontario from United Kingdom, with most prices found around £416. If you’re not able to fly to Ontario in February, then January is your next best option. Flight prices from United Kingdom to Ontario during January average around £417.
What is the cheapest day to depart on your flight to Ontario?
The cheapest day to depart on your flight to Ontario is on a Wednesday when prices can be found for as low as £492. This is often the case because there is less demand to fly during this day of the week. Flights from United Kingdom to Ontario on a Sunday will generally be more expensive and average around £569. 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 Ontario?
Flying to Ontario from United Kingdom in the evening is the least expensive time of day to depart. momondo users have found prices as low as £481 when looking at flights departing in the evening. In contrast, the most expensive time of day to depart to Ontario is at midday when prices are around £566.
How far in advance should I book a flight to Ontario?
You are more likely to see cheaper flights to Ontario from United Kingdom when booking 22 weeks ahead of your departure date. In general, you can expect to find flights to Ontario for around £542 when searching 22 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Ontario from United Kingdom for as low as £388 on momondo.
What is the cheapest airline that flies from United Kingdom to Ontario?
British Airways, Lufthansa, and Iberia are the most popular carriers operating from United Kingdom to Ontario
Which airlines fly to Ontario?
British Airways, Virgin Atlantic and Finnair are the top three most popular airlines that fly to Ontario from United Kingdom according to our data. British Airways is the first choice among our users, with 47% of people opting to fly with this airline when travelling to Ontario. Keep in mind that there are 26 different airlines that fly to Ontario on a routine basis, so you have a few additional options to choose from.
Cheap United Kingdom to Ontario flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from United Kingdom to Ontario
When did momondo last update prices for flights from United Kingdom to Ontario Airport?
Prices for flights from United Kingdom to Ontario Airport are refreshed on a daily basis.
How many operators does momondo search for flights from United Kingdom to Ontario Airport?
There are 6 operators available for flights from United Kingdom to Ontario Airport as of May 2025.
How old do you have to be to fly from United Kingdom to Ontario Airport?
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 United Kingdom to Ontario Airport.
What documentation or ID do you need to fly to Ontario Airport?
The necessary travel and health documents for your Ontario Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.
Best airlines flying from United Kingdom to Ontario
Compare and see reviews for airlines that fly from United Kingdom to Ontario with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom £370 | Free Cancellation | Rating 7.6 1,275 reviews | |||
| PriceFrom £380 | Free Cancellation | Rating 7.8 1,334 reviews | |||
| PriceFrom £397 | Free Cancellation | Rating 7.4 8,696 reviews | |||
| PriceFrom £409 | Free Cancellation | Rating 7.4 643 reviews | |||
| PriceFrom £409 | Free Cancellation | Rating 6.6 6,846 reviews | |||
| PriceFrom £442 | Free Cancellation | Rating 6.7 7,045 reviews |
Why use momondo?
Why should I use momondo to find a flight deal from United Kingdom to Ontario?
It is quick and easy to find United Kingdom to Ontario 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 Ontario that suits you.
Can I find flights from United Kingdom to Ontario with flexible booking policies on momondo?
Flights from United Kingdom to Ontario 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 United Kingdom to Ontario?
Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Ontario from United Kingdom.
I’m not ready to book a flight from United Kingdom to Ontario right now. Can momondo alert me if prices change?
Yes. momondo can track prices for United Kingdom to Ontario flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.