Flights to Ontario

£405 Cheap flights to Ontario

This is the cheapest return flight price found by a momondo user in the last 72 hours by searching for a flight to Ontario departing on 11/11. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

Discover deals from 900+ travel sites with momondo.

Voted winner of Europe's Best Travel App 2023

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 Ontario

Cheap return flights

British Airways Logo
14:55 - 22:00LHR-ONT
15h 05m1 stop
British Airways Logo
17:01 - 13:20ONT-LHR
12h 19m1 stop
£405British Airways
Find Deal
Tue, 11 Nov - Tue, 18 Nov
British Airways Logo
15:40 - 21:39LHR-ONT
13h 59m1 stop
British Airways Logo
16:45 - 12:50ONT-LHR
12h 05m1 stop
£423British Airways
Find Deal
Sun, 24 Aug - Tue, 9 Sep
Finnair Logo
10:30 - 18:54LHR-ONT
16h 24m1 stop
Finnair Logo
12:45 - 10:50ONT-LHR
14h 05m1 stop
£429Finnair
Find Deal
Wed, 24 Sep - Sun, 28 Sep
Virgin Atlantic Logo
11:00 - 23:42LHR-ONT
20h 42m1 stop
Virgin Atlantic Logo
13:00 - 17:35ONT-LHR
20h 35m2 stops
£442Virgin Atlantic
Find Deal
Wed, 1 Oct - Wed, 22 Oct
Virgin Atlantic Logo
13:25 - 23:46LHR-ONT
18h 21m2 stops
Virgin Atlantic Logo
11:29 - 11:20ONT-LHR
15h 51m1 stop
£450Virgin Atlantic
Find Deal
Wed, 15 Oct - Tue, 21 Oct
KLM Logo
11:20 - 19:15LHR-ONT
15h 55m1 stop
KLM Logo
13:15 - 09:50ONT-LHR
12h 35m1 stop
£452KLM
Find Deal
Thu, 11 Sep - Wed, 24 Sep
KLM Logo
11:20 - 19:15LHR-ONT
15h 55m1 stop
KLM Logo
13:15 - 09:50ONT-LHR
12h 35m1 stop
£453KLM
Find Deal
Thu, 11 Sep - Fri, 3 Oct
Finnair Logo
15:10 - 22:33LHR-ONT
15h 23m1 stop
Finnair Logo
14:54 - 12:45ONT-LHR
13h 51m1 stop
£454Finnair
Find Deal
Fri, 5 Sep - Fri, 12 Sep
United Airlines Logo
10:05 - 17:34LHR-ONT
15h 29m1 stop
United Airlines Logo
13:00 - 09:40ONT-LHR
12h 40m1 stop
£491United Airlines
Find Deal
Mon, 17 Nov - Mon, 1 Dec
United Airlines Logo
09:00 - 20:43EDI-ONT
19h 43m2 stops
United Airlines Logo
07:02 - 08:25ONT-EDI
17h 23m1 stop
£568United Airlines
Find Deal
Tue, 23 Sep - Mon, 20 Oct

See travel insights to Ontario from

Ontario flights insights and trends

Explore insights for your Ontario flight to craft the best travel plan

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 £397. 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 £405.

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 £478. 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 £553. 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 £468 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 £550.

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 weeks ahead of your departure date. In general, you can expect to find flights to Ontario for around £533 when searching weeks before you fly. 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 £400 on momondo.

Cheapest flights to Ontario

Find the cheapest flights to Ontario from your nearest city or airport
CHEAPEST MONTH TO FLY TO ONTARIO FROM LONDON HEATHROW AIRPORTFebruary20% cheaperFlying from London Heathrow Airport to Ontario costs on average just £429 in February
MOST EXPENSIVE MONTH TO FLY TO ONTARIO FROM LONDON HEATHROW AIRPORTAugust31% more expensiveIt costs about £699 for flights to Ontario from London Heathrow Airport in August
MOST POPULAR MONTH TO FLY TO ONTARIO FROM LONDON HEATHROW AIRPORTNovember586% more users visitedMore momondo users searched in flights to Ontario from London Heathrow Airport in November than any other month

Cheap Ontario flight deals and tips

Summary info about Ontario flight prices, duration and airlines

Best One-Way Price

£410

Best Round-Trip Price

£405

Fastest flight time

14h 24m

Popular in

July
The best one-way flight price to Ontario from United Kingdom in the last 72 hours is £410 (London Gatwick to Ontario).
The best round-trip flight price to Ontario from United Kingdom in the last 72 hours is £405 (London Heathrow to Ontario).
The fastest flight to Ontario from United Kingdom takes 14h 24m (London Heathrow to Ontario).
July has the highest demand for flights to Ontario, with a 24% price increase on average.

Frequently asked questions about flying to Ontario

How far in advance should I book a flight to Ontario?

Most flyers found that booking tickets 77 days in advance of their planned departure date is the best time to get cheap flights to Ontario. During this timeframe, flight prices are around £536. However, in the past 72 hours, people saw flights from United Kingdom for as low as £381.

Is there an alternative airport near Ontario?

Ontario Airport, San Bernardino Int Airport, Santa Ana J. Wayne/Orange Cnty Airport, Long Beach Municipal Airport or Burbank Bob Hope Airport can be an alternative airport used for travel to Ontario.

Is there a cheaper alternative to flying into Ontario?

The cheapest airport near Ontario is typically Burbank Bob Hope Airport, with an average price of £162/person. These prices vary based on where travellers are coming from. It is suggested that travellers looking to save money try momondo’s Airport-to-Airport Pricing Tool.

What is the absolute cheapest flight to Ontario?

The best deal found on momondo in the last two weeks was a flight to Ontario from Las Vegas for £35. This is 80% cheaper than most flight deals to Ontario. To find the cheapest price to Ontario from your area, use momondo’s Airport-to-Airport Pricing Tool.

When did momondo last update prices for flights to Ontario Airport?

Prices for flights to Ontario Airport are updated daily.

How many operators does momondo search for flights to Ontario Airport?

How old do you have to be to fly to Ontario Airport?

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel to Ontario Airport.

What documentation or ID do you need to fly to Ontario Airport?

The required travel and health documents for your Ontario Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Ontario Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.


Why use momondo?

Why should I use momondo to find a flight deal to Ontario?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Ontario.

Can I find flights to Ontario with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for flights to Ontario to just show those with flexible booking policies.

How can momondo help me find flights to Ontario?

momondo helps you find the best flight to Ontario by providing filters to narrow your choice of flights to those matching your criteria. You can select fights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight to Ontario right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Ontario, momondo offers a useful price alert feature which will track prices for flights to Ontario and alert you when they change.


An easier way to manage your Ontario trip

We make it super easy to schedule, organise and travel with friends or family. Trips is free – and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Mon 7/7
Mon 14/7

Find better results for your trip to Ontario

Popular Flights to Ontario

Popular routes according to searches in the past day on momondo

Cheapest flight routes to Ontario

These routes have the cheapest flights to Ontario found by momondo users in United Kingdom
DepartingDestinationBest TimeBest Price
LondonOntario13h 34m£405
EdinburghOntario17h 31m£488
Newcastle upon TyneOntario19h 48m£493
GlasgowOntario17h 15m£503
AberdeenOntario23h 43m£519
ManchesterOntario18h 05m£527
BelfastOntario20h 48m£532
LeedsOntario21h 37m£1,222