Which airports can I use when flying from London to Ontario?

Flights from London to Ontario usually depart from London (YXU) and arrive at Ontario (ONT).

What popular places can I visit in Ontario?

Some of the most popular sights in Ontario are Ontario Convention Center, Ontario Mills and Cucamonga-Guasti Regional Park. These are among the most viewed places in Ontario on KAYAK.

Do I need a passport to fly from London to Ontario?

Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.

What is the time difference between London and Ontario?

Ontario is 3 hours behind London (Pacific Time vs Eastern Time). Plan for the time shift when scheduling connections or first-day activities.

What car rental options are available at Ontario Airport (ONT)?

Ontario Airport (ONT) hosts 5 major car rental companies, with daily rates starting from around $18 for economy cars. Top options include: · Fox · Thrifty · Europcar · Dollar · Alamo

What is the cheapest airline to fly from London to Ontario?

United Airlines ($590) and Air Canada ($772) are the cheapest airlines to fly round-trip from London to Ontario according to KAYAK data over the last 5 days.

$179 CHEAP FLIGHTS from London to Ontario (YXU - ONT)

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Cheapest round-trip

$590

Typical prices: $422-$422

United Airlines

Sat 9/29Sat 10/6

YXU - ONT • 2 stops

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Flight Deals

Cheap Flights from London to Ontario (YXU-ONT)

Discover the best prices for you by selecting your travel dates on KAYAK.

Round-trip

One-way

Recent round-trip flight deals from London to Ontario

Tue, Sep 29 - Tue, Oct 6

5:40 am - 5:41 pmYXU London-ONT Ontario

15h 01m2 stops Toronto Pearson Intl San Francisco

11:10 am - 9:20 amONT Ontario-YXU London

19h 10m2 stops San Francisco Toronto Pearson Intl

$590United Airlines

Sat, Dec 5 - Wed, Dec 9

5:30 am - 5:36 pmYXU London-ONT Ontario

15h 06m2 stops Toronto Pearson Intl San Francisco

11:26 am - 2:42 pmONT Ontario-YXU London

24h 16m2 stops San Francisco Toronto Pearson Intl

$603United Airlines

Sat, Dec 5 - Tue, Dec 8

5:30 am - 5:36 pmYXU London-ONT Ontario

15h 06m2 stops Toronto Pearson Intl San Francisco

11:26 am - 2:42 pmONT Ontario-YXU London

24h 16m2 stops San Francisco Toronto Pearson Intl

$609United Airlines

Fri, Oct 16 - Fri, Oct 23

5:40 am - 10:23 amYXU London-ONT Ontario

31h 43m2 stops Toronto Pearson Intl San Francisco

1:52 pm - 8:37 amONT Ontario-YXU London

39h 45m2 stops San Francisco Toronto Pearson Intl

$635United Airlines

Sat, Dec 5 - Wed, Dec 9

9:15 am - 8:20 pmYXU London-ONT Ontario

14h 05m3 stops Toronto Pearson Intl Newark Denver Intl

6:00 am - 2:42 pmONT Ontario-YXU London

29h 42m2 stops San Francisco Toronto Pearson Intl

$693United Airlines

Sat, Dec 5 - Tue, Dec 8

5:30 am - 8:20 pmYXU London-ONT Ontario

17h 50m3 stops Toronto Pearson Intl Newark Denver Intl

11:26 am - 2:42 pmONT Ontario-YXU London

24h 16m2 stops San Francisco Toronto Pearson Intl

$699United Airlines

Sat, Dec 5 - Wed, Dec 9

9:15 am - 8:20 pmYXU London-ONT Ontario

14h 05m3 stops Toronto Pearson Intl Newark Denver Intl

5:00 am - 9:47 pmONT Ontario-YXU London

13h 47m2 stops Denver Intl Toronto Pearson Intl

$744United Airlines

Thu, Oct 15 - Thu, Oct 22

10:05 am - 10:49 pmYXU London-ONT Ontario

15h 44m2 stops Toronto Pearson Intl Chicago O'Hare Intl

7:00 am - 9:40 pmONT Ontario-YXU London

11h 40m2 stops Chicago O'Hare Intl Toronto Pearson Intl

$744United Airlines

Sat, Dec 5 - Wed, Dec 9

5:30 am - 6:44 pmYXU London-ONT Ontario

16h 14m2 stops Toronto Pearson Intl Chicago O'Hare Intl

5:00 am - 9:47 pmONT Ontario-YXU London

13h 47m2 stops Denver Intl Toronto Pearson Intl

$744United Airlines

Sat, Sep 26 - Wed, Sep 30

5:40 am - 10:59 pmYXU London-ONT Ontario

20h 19m2 stops Toronto Pearson Intl San Francisco

5:00 am - 5:43 pmONT Ontario-YXU London

9h 43m2 stops Denver Intl Toronto Pearson Intl

$772Air Canada

Booking Insights

Price, demand and travel trends for London to Ontario flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights from London to Ontario with more confidence.

Prices

Airlines

How much is a round-trip flight from London to Ontario?

Round-trip flights from London to Ontario start at $590. Prices are above average for this route right now, with typical round-trip fares ranging from $422 to $422. The lowest price found in the past 5 days was $590 on United Airlines.

Find deals

Cheapest flight	$179

Flight from London to Ontario

When to book flights from London to Ontario

Are your dates flexible? Find out the best times to travel from London to Ontario based on our flight data from the last year. Discover the cheapest month and even day to fly.

Estimated round-trip price

KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

Which airports can I use when flying from London to Ontario?
Flights from London to Ontario usually depart from London (YXU) and arrive at Ontario (ONT).
What popular places can I visit in Ontario?
Some of the most popular sights in Ontario are Ontario Convention Center, Ontario Mills and Cucamonga-Guasti Regional Park. These are among the most viewed places in Ontario on KAYAK.
Do I need a passport to fly from London to Ontario?
Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.
What is the time difference between London and Ontario?
Ontario is 3 hours behind London (Pacific Time vs Eastern Time). Plan for the time shift when scheduling connections or first-day activities.
What car rental options are available at Ontario Airport (ONT)?
Ontario Airport (ONT) hosts 5 major car rental companies, with daily rates starting from around $18 for economy cars. Top options include:
· Fox
· Thrifty
· Europcar
· Dollar
· Alamo

If you're arriving late at night and need somewhere to stay, check out these hotels close to Ontario Airport.
- Azure Hotel & Suites, Trademark Collection by Wyndham
- La Quinta Inn & Suites by Wyndham Ontario Airport
- Holiday Inn Ontario Airport By IHG

Everything you need to know for your flight from London to Ontario

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Information on your arrival and departure airports

London (YXU)

Ontario (ONT)

YXU - ONT

$179 Find Cheap Flights from London to Ontario - Compare and Save

Everything you should know

Cheap Flights from London to Ontario (YXU-ONT)

Recent round-trip flight deals from London to Ontario

Recent one-way flight deals from London to Ontario

Price, demand and travel trends for London to Ontario flights

How much is a round-trip flight from London to Ontario?

What is the cheapest airline to fly from London to Ontario?

Key details for London to Ontario flights

Cheapest flight

When to book flights from London to Ontario

Your London to Ontario flight questions, answered

Your guide to booking London to Ontario flights

Everything you need to know for your flight from London to Ontario

Information on your arrival and departure airports

Cabin class types available on flights from London to Ontario

Complete your trip to Ontario with a hotel stay or car rental

Find direct flights to and from London and Ontario

Flights to other popular destinations

Flights from domestic origins to Ontario

Choose which airport to fly into in Ontario