$170+ Cheap flights from Ontario (ONT) to the United Kingdom
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 2/3. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — LHR
Dec 8 — Dec 151
1 adult, Economy
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Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Ontario to United Kingdom
Discover tips and strategies to find the most affordable flight options for your journey from Ontario (ONT) to United Kingdom (GB0). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated December 3, 2024.
Find flight deals from Ontario to United Kingdom
Cheapest flights from Ontario to United KingdomExplore the most affordable flight options available from Ontario to United Kingdom. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 3, 2024.
Explore the most affordable flight options available from Ontario to United Kingdom. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 3, 2024.
This The Travel House deal was found by Cheapflights users on 12/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure The Travel House is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/291:57 pmONT - LHR
1 stop14h 03mLufthansa
Tue 1/1410:05 amLHR - ONT
1 stop15h 59mLufthansa
Deal found 12/3![Lufthansa logo]()
$635
This United Airlines deal was found by Cheapflights users on 12/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/291:57 pmONT - LHR
1 stop14h 03mUnited Airlines
Tue 1/1410:05 amLHR - ONT
1 stop15h 59mUnited Airlines
Deal found 12/2![United Airlines logo]()
$646
This Trip.com deal was found by Cheapflights users on 12/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/512:38 pmONT - LGW
1 stop13h 57mMultiple Airlines
Thu 12/1212:00 pmLGW - ONT
1 stop27h 14mMultiple Airlines
Deal found 12/3![Multiple Airlines logo]()
$708
This United Airlines deal was found by Cheapflights users on 12/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/2910:39 amONT - MAN
2 stops20h 16mUnited Airlines
Tue 1/146:05 amMAN - ONT
2 stops19h 59mUnited Airlines
Deal found 12/1![United Airlines logo]()
$712
This KLM deal was found by Cheapflights users on 12/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/3112:55 pmONT - LHR
1 stop13h 40mKLM
Wed 1/82:30 pmLHR - ONT
1 stop16h 22mKLM
Deal found 12/2![KLM logo]()
$805
This Lufthansa deal was found by Cheapflights users on 12/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/315:05 amONT - LHR
1 stop20h 35mMultiple Airlines
Thu 1/99:20 amLHR - ONT
1 stop20h 37mMultiple Airlines
Deal found 12/3![Multiple Airlines logo]()
$847
This American Airlines deal was found by Cheapflights users on 12/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/246:05 amONT - LGW
2 stops17h 25mAmerican Airlines
Sun 1/1212:30 pmLGW - ONT
2 stops29h 29mAmerican Airlines
Deal found 12/2![American Airlines logo]()
$876
This Iberia deal was found by Cheapflights users on 12/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/277:15 amONT - LHR
1 stop16h 05mIberia
Sun 1/129:25 amLHR - ONT
1 stop22h 33mIberia
Deal found 12/2![Iberia logo]()
$896
This Delta deal was found by Cheapflights users on 12/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/301:15 pmONT - LHR
1 stop12h 45mDelta
Tue 1/71:15 pmLHR - ONT
1 stop17h 17mDelta
Deal found 12/3![Delta logo]()
$905
This Virgin Atlantic deal was found by Cheapflights users on 12/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Virgin Atlantic is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/277:00 amONT - LHR
1 stop22h 10mVirgin Atlantic
Sun 1/1210:45 amLHR - ONT
1 stop13h 43mVirgin Atlantic
Deal found 12/2![Virgin Atlantic logo]()
$907
This American Airlines deal was found by Cheapflights users on 12/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/2410:02 amONT - LHR
1 stop19h 18mAmerican Airlines
Sun 1/1210:40 amLHR - ONT
1 stop15h 57mAmerican Airlines
Deal found 12/2![American Airlines logo]()
$912
This oojo deal was found by Cheapflights users on 12/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/37:15 amONT - ABZ
2 stops18h 25mBritish Airways
Tue 12/105:50 amABZ - ONT
2 stops20h 48mBritish Airways
Deal found 12/2![British Airways logo]()
$917
Find flights from Ontario to United Kingdom within your budget
Customize your flight search to find flights from Ontario to United Kingdom that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,700,776 searches. Data last updated December 3, 2024.
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Route
Depart
Return
Price
OntarioLondon
ONT - LGW
ONTLGW
Ontario
Sun 1/12
8:04 am-10:35 am
1 stop18h 31m
London Gatwick
Tue 1/28
12:00 pm-11:43 am
1 stop31h 43m
$585
OntarioManchester
ONT - MAN
ONTMAN
Ontario
Sun 2/2
11:59 pm-11:45 am
2 stops27h 46m
Manchester
Wed 2/12
2:50 pm-10:04 pm
2 stops39h 14m
$606
OntarioLondon
ONT - LGW
ONTLGW
Ontario
Sun 1/12
6:00 am-9:00 am
2 stops19h 00m
London Gatwick
Tue 1/28
11:20 am-1:51 pm
2 stops34h 31m
$617
OntarioGlasgow
ONT - GLA
ONTGLA
Ontario
Wed 2/26
12:50 pm-6:30 pm
2 stops21h 40m
Glasgow Intl
Tue 3/11
9:50 am-11:54 pm
2 stops21h 04m
$618
OntarioLondon
ONT - LHR
ONTLHR
Ontario
Mon 3/31
11:02 am-10:50 am
1 stop15h 48m
London Heathrow
Tue 4/8
11:30 am-11:42 pm
2 stops20h 12m
$621
OntarioGlasgow
ONT - GLA
ONTGLA
Ontario
Tue 3/18
10:57 am-2:35 pm
2 stops20h 38m
Glasgow Intl
Tue 4/8
11:00 am-9:39 pm
2 stops18h 39m
$621
OntarioEdinburgh
ONT - EDI
ONTEDI
Ontario
Tue 1/14
7:00 am-10:20 am
2 stops19h 20m
Edinburgh Turnhouse
Mon 1/27
7:20 pm-6:37 pm
2 stops31h 17m
$624
OntarioLondon
ONT - LHR
ONTLHR
Ontario
Sun 1/12
10:47 am-10:50 am
2 stops16h 03m
London Heathrow
Tue 1/28
7:40 am-6:04 pm
2 stops18h 24m
$630
OntarioGlasgow
ONT - GLA
ONTGLA
Ontario
Tue 3/18
2:44 pm-4:55 pm
2 stops19h 11m
Glasgow Intl
Wed 4/2
1:05 pm-11:51 pm
2 stops18h 46m
$631
OntarioLondon
ONT - LHR
ONTLHR
Ontario
Wed 3/19
10:38 am-7:25 am
1 stop13h 47m
London Heathrow
Wed 3/26
3:00 pm-8:57 pm
2 stops36h 57m
$633
Showing 1-10 of 58 results
Best time to book a flight from Ontario to United Kingdom
Have a flexible travel schedule? Discover the best time to fly to United Kingdom from Ontario with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Travel insights for flights from Ontario to United Kingdom
Get recent, data-driven insights about flights from Ontario to United Kingdom including ideal travel times, pricing trends, and more.
What is the cheapest month to book a flight from Ontario to United Kingdom?
Currently, November is the cheapest month in which you can book a flight from Ontario to United Kingdom (average of $661). Flying from Ontario to United Kingdom in June is currently the most expensive (average of $1,088). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
What is the cheapest time of day to fly from ONT to GB?
Find hourly flight availability from Ontario to United Kingdom. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 3, 2024.
Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Ontario to United Kingdom as you normally would.
Rainfall in United Kingdom by month
Plan your trip to United Kingdom by taking into account the average rainfall totals by month.
In terms of precipitation, rainfall in United Kingdom ranges from 1.6 - 2.8 inches per month. January is typically the wettest month, when rainfall can reach 2.8 in. July is typically the driest time to visit United Kingdom when rainfall is around 1.6 in.