$197+ Cheap flights from London, ON (YXU) to Ontario (ONT)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/7. Fares are subject to change and may not be available on all flights or dates of travel.
YXU — ONT
Nov 25 — Dec 21
Round-trip
1 adult, Economy
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Find cheap flights from London to Ontario with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
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 London to Ontario
Cheapest
Best
Last-minute
One-way
Cheapest flights from London to OntarioExplore the most affordable flight options available from London to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 26, 2026.
Explore the most affordable flight options available from London to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 26, 2026.
This Mytrip deal was found by Cheapflights users on 10/22. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/610:15 am -
3 stops35h 16m
Sun 12/1311:30 am -
3 stops27h 15m
Deal found 10/22![Multiple Airlines logo]()
$539
This Mytrip deal was found by Cheapflights users on 10/24. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/96:40 am -
3 stops32h 11m
Wed 12/1611:30 am -
2 stops23h 35m
Deal found 10/24![Multiple Airlines logo]()
$643
This United Airlines deal was found by Cheapflights users on 10/25. 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.
Sat 12/55:30 am -
2 stops15h 06m
Tue 12/85:00 am -
2 stops13h 52m
Deal found 10/25![United Airlines logo]()
$715
This United Airlines deal was found by Cheapflights users on 10/22. 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 12/65:30 am -
2 stops16h 14m
Sun 12/135:00 am -
2 stops13h 52m
Deal found 10/22![United Airlines logo]()
$782
This United Airlines deal was found by Cheapflights users on 10/24. 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.
Sat 11/219:05 pm -
2 stops24h 42m
Sat 11/287:00 am -
2 stops10h 27m
Deal found 10/24![United Airlines logo]()
$851
This Mytrip deal was found by Cheapflights users on 10/24. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/216:40 am -
2 stops28h 50m
Sat 11/287:30 am -
3 stops31h 15m
Deal found 10/24![Multiple Airlines logo]()
$908
Best flights from London to OntarioDiscover carefully curated flight deals from London to Ontario that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 26, 2026.
Discover carefully curated flight deals from London to Ontario that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 26, 2026.
This Mytrip deal was found by Cheapflights users on 10/22. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/610:15 am -
2 stops24h 29m
Sun 12/136:00 am -
3 stops32h 45m
Deal found 10/22![Multiple Airlines logo]()
$555
This United Airlines deal was found by Cheapflights users on 10/25. 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.
Sat 12/55:30 am -
2 stops15h 06m
Tue 12/85:00 am -
2 stops13h 52m
Deal found 10/25![United Airlines logo]()
$715
This United Airlines deal was found by Cheapflights users on 10/25. 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.
Thu 2/115:30 am -
2 stops10h 09m
Sat 2/205:00 am -
2 stops13h 52m
Deal found 10/25![United Airlines logo]()
$728
This United Airlines deal was found by Cheapflights users on 10/24. 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.
Wed 12/95:30 am -
2 stops18h 08m
Wed 12/166:00 am -
2 stops23h 32m
Deal found 10/24![United Airlines logo]()
$782
This Mytrip deal was found by Cheapflights users on 10/24. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/216:40 am -
2 stops28h 50m
Sat 11/287:30 am -
3 stops31h 15m
Deal found 10/24![Multiple Airlines logo]()
$908
This United Airlines deal was found by Cheapflights users on 10/22. 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 12/65:30 am -
2 stops16h 14m
Sun 12/135:00 am -
2 stops13h 52m
Deal found 10/22![United Airlines logo]()
$782
Last-minute flights from London to OntarioDiscover last-minute flight deals from London to Ontario. Data last updated October 26, 2026 and is based on user searches.
Discover last-minute flight deals from London to Ontario. Data last updated October 26, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 10/24. 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.
Sat 11/219:05 pm -
2 stops24h 42m
Sat 11/287:00 am -
2 stops10h 27m
Deal found 10/24![United Airlines logo]()
$851
This Mytrip deal was found by Cheapflights users on 10/24. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/216:40 am -
2 stops28h 50m
Sat 11/287:30 am -
3 stops31h 15m
Deal found 10/24![Multiple Airlines logo]()
$908
One-way flights from London to OntarioSearch for one-way flight options from London to Ontario. Find affordable one-way fares based on user searches. Data last updated October 26, 2026.
Search for one-way flight options from London to Ontario. Find affordable one-way fares based on user searches. Data last updated October 26, 2026.
This Kiwi.com deal was found by Cheapflights users on 10/23. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/710:15 am -
3 stops52h 36m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/23![Multiple Airlines logo]()
$197
This Kiwi.com deal was found by Cheapflights users on 10/21. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/510:00 am -
2 stops24h 44m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/21![Multiple Airlines logo]()
$229
This Kiwi.com deal was found by Cheapflights users on 10/23. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/610:15 am -
3 stops51h 30m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/23![Multiple Airlines logo]()
$234
This Kiwi.com deal was found by Cheapflights users on 10/25. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/96:40 am -
3 stops43h 43m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/25![Multiple Airlines logo]()
$348
This Kiwi.com deal was found by Cheapflights users on 10/26. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/206:15 am -
3 stops52h 46m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/26![Multiple Airlines logo]()
$349
This United Airlines deal was found by Cheapflights users on 10/22. 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 12/65:30 am -
2 stops16h 14m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/22![United Airlines logo]()
$408
Find flight deals from London to Ontario
Discover tips and strategies to find the most affordable flight options for your journey from London (YXU) to Ontario (ONT). 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 October 26, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $539 (Mytrip) |
One-way from | $197 (Kiwi.com) |
Cheapflights Fare Finder
Customize your flight search to find flights from London to Ontario 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 7,457,451 searches. Data last updated October 26, 2026.
Use the filters below to find and compare flights from London to Ontario that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
LondonOntario
YXU London - ONT Ontario
YXUONT
London
Mon 12/7
10:15 am-11:51 am
3 stops52h 36m
Ontario
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$197
LondonOntario
YXU London - ONT Ontario
YXUONT
London
Sat 12/5
10:00 am-7:44 am
2 stops24h 44m
Ontario
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$229
LondonOntario
YXU London - ONT Ontario
YXUONT
London
Sun 12/6
10:15 am-10:45 am
3 stops51h 30m
Ontario
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$234
LondonOntario
YXU London - ONT Ontario
YXUONT
London
Wed 12/9
6:40 am-11:51 am
2 stops32h 11m
Ontario
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$313
LondonOntario
YXU London - ONT Ontario
YXUONT
London
Sun 12/20
6:15 am-8:01 am
3 stops52h 46m
Ontario
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$349
Quickest round-trip
LondonOntario
YXU London - ONT Ontario
YXUONT
London
Sun 12/6
5:30 am-6:44 pm
2 stops16h 14m
Ontario
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$408
LondonOntario
YXU London - ONT Ontario
YXUONT
London
Sun 12/6
10:15 am-7:44 am
2 stops24h 29m
Ontario
Sun 12/13
6:00 am-5:45 pm
3 stops32h 45m
$555
LondonOntario
YXU London - ONT Ontario
YXUONT
London
Sat 12/5
5:30 am-5:36 pm
2 stops15h 06m
Ontario
Tue 12/8
5:00 am-9:52 pm
2 stops13h 52m
$715
LondonOntario
YXU London - ONT Ontario
YXUONT
London
Thu 2/11
5:30 am-12:39 pm
2 stops10h 09m
Ontario
Sat 2/20
5:00 am-9:52 pm
2 stops13h 52m
$728
LondonOntario
YXU London - ONT Ontario
YXUONT
London
Wed 12/9
5:30 am-8:38 pm
2 stops18h 08m
Ontario
Wed 12/16
6:00 am-8:32 am
2 stops23h 32m
$782
Showing 1-10 of 12 resultsSorted by cheapest first
Compare providers for flights from London to Ontario
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from London to Ontario in October.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on London, Ontario-Ontario flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on London, Ontario-Ontario flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from London, Ontario-Ontario flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on London, Ontario-Ontario flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for London, Ontario-Ontario flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
Best time to book a flight from London to Ontario
Have a flexible travel schedule? Discover the best time to fly to Ontario from London with our price prediction graph.
YXU-ONT
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.
Related info for your journey
Find useful and relevant information for your journey from London to Ontario. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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