What airlines fly to United Kingdom?

British Airways, Virgin Atlantic and Delta are the top three most popular airlines that fly to United Kingdom from Ontario according to our data. British Airways is the first choice among our users, with 54% of people opting to fly with this airline when traveling to United Kingdom. Keep in mind that there are 21 different airlines that fly to United Kingdom on a routine basis, so you have a few additional options to choose from.

What is the cheapest airline that flies from Ontario to United Kingdom?

British Airways, KLM, and Delta are the most popular carriers operating from Ontario to United Kingdom

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

Prices for flights from Ontario Airport to United Kingdom were last updated today.

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

As of January 2026, there are 7 operators available to choose from for flights from Ontario Airport to United Kingdom.

How old do you have to be to fly from Ontario Airport to United Kingdom?

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Ontario Airport to United Kingdom.

What documentation or ID do you need to fly to United Kingdom?

The travel and health documents required for your trip to United Kingdom can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at United Kingdom. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$201 Cheap Flights from Ontario to the United Kingdom in 2026

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Find the cheapest flights from Ontario to the United Kingdom

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

7:16 am - 2:15 pm

ONT

EDI

22h 59m2 stops

2:15 pm - 10:07 pm

EDI

ONT

39h 52m2 stops

$561British Airways

Wed, Feb 4 - Wed, Feb 11

2:39 pm - 3:10 pm

ONT

MAN

16h 31m2 stops

11:40 am - 10:29 pm

MAN

ONT

18h 49m2 stops

$566British Airways

Mon, Feb 16 - Thu, Mar 5

3:09 pm - 5:35 pm

ONT

MAN

18h 26m2 stops

8:55 am - 10:49 pm

MAN

ONT

21h 54m2 stops

$567British Airways

Tue, Feb 10 - Tue, Feb 24

7:16 am - 6:50 am

ONT

LHR

15h 34m1 stop

8:50 pm - 10:48 pm

LHR

ONT

33h 58m2 stops

$578Iberia

Wed, Jan 28 - Tue, Feb 3

6:00 am - 8:35 am

ONT

LHR

18h 35m1 stop

8:50 pm - 10:48 pm

LHR

ONT

33h 58m2 stops

$579Iberia

Sun, Jan 18 - Tue, Feb 3

7:30 am - 10:20 am

ONT

NCL

18h 50m2 stops

6:05 am - 10:44 pm

NCL

ONT

24h 39m2 stops

$620Delta

Tue, Jan 27 - Tue, Feb 3

7:30 am - 10:20 am

ONT

NCL

18h 50m2 stops

6:00 am - 11:58 pm

NCL

ONT

25h 58m2 stops

$621Delta

Tue, Jan 27 - Fri, Feb 6

6:10 am - 12:35 pm

ONT

BHX

22h 25m2 stops

6:05 am - 10:57 pm

BHX

ONT

24h 52m2 stops

$662United Airlines

Fri, Feb 20 - Fri, Feb 27

6:00 am - 12:20 pm

ONT

MAN

23h 20m2 stops

6:00 am - 5:41 pm

MAN

ONT

18h 41m2 stops

$664United Airlines

Thu, Mar 12 - Mon, Mar 16

11:59 pm - 7:30 am

ONT

LGW

23h 31m2 stops

12:30 pm - 2:18 pm

LGW

ONT

33h 48m2 stops

$684American Airlines

Thu, Jan 22 - Sat, Jan 31

Air Canada flights from Ontario to United Kingdom

Our best Air Canada deals on Ontario to United Kingdom flight tickets

Air Canada

Feb 19

ONT5:00 amOntario

18h 10m

2 stops

LHR7:10 amLondon Heathrow

Mar 3

LHR2:30 pmLondon Heathrow

30h 18m

2 stops

ONT12:48 pmOntario

$639

Air Canada

Feb 2

ONT5:05 amOntario

18h 05m

2 stops

LHR7:10 amLondon Heathrow

Feb 25

LHR11:10 amLondon Heathrow

33h 33m

2 stops

ONT12:43 pmOntario

$647

Air Canada

Jan 18

ONT5:05 amOntario

18h 05m

2 stops

LHR7:10 amLondon Heathrow

Jan 25

LHR6:00 pmLondon Heathrow

34h 58m

2 stops

ONT8:58 pmOntario

$698

Delta flights from Ontario to United Kingdom

Our best Delta deals on Ontario to United Kingdom flight tickets

Delta

Jan 18

ONT12:41 pmOntario

14h 59m

1 stop

LHR11:40 amLondon Heathrow

Feb 3

LHR12:30 pmLondon Heathrow

16h 35m

1 stop

ONT9:05 pmOntario

$599

Delta

Jan 18

ONT12:41 pmOntario

14h 59m

1 stop

LHR11:40 amLondon Heathrow

Feb 3

LHR12:30 pmLondon Heathrow

16h 35m

1 stop

ONT9:05 pmOntario

$600

Delta

Jan 18

ONT12:41 pmOntario

14h 59m

1 stop

LHR11:40 amLondon Heathrow

Feb 3

LHR12:30 pmLondon Heathrow

16h 35m

1 stop

ONT9:05 pmOntario

$601

Fly from

Fly to

Route

Depart

Return

Price

OntarioEdinburgh

ONT - EDI

ONTEDI

Ontario

Wed 2/4

7:16 am-2:15 pm

2 stops22h 59m

Edinburgh Turnhouse

Wed 2/11

2:15 pm-10:07 pm

2 stops39h 52m

$561

OntarioManchester

ONT - MAN

ONTMAN

Ontario

Mon 2/16

2:39 pm-3:10 pm

2 stops16h 31m

Manchester

Thu 3/5

11:40 am-10:29 pm

2 stops18h 49m

$566

OntarioManchester

ONT - MAN

ONTMAN

Ontario

Tue 2/10

3:09 pm-5:35 pm

2 stops18h 26m

Manchester

Tue 2/24

8:55 am-10:49 pm

2 stops21h 54m

$567

OntarioLondon

ONT - LHR

ONTLHR

Ontario

Wed 1/28

7:16 am-6:50 am

1 stop15h 34m

London Heathrow

Tue 2/3

8:50 pm-10:48 pm

2 stops33h 58m

$578

OntarioLondon

ONT - LHR

ONTLHR

Ontario

Sun 1/18

6:00 am-8:35 am

1 stop18h 35m

London Heathrow

Tue 2/3

8:50 pm-10:48 pm

2 stops33h 58m

$579

OntarioNewcastle upon Tyne

ONT - NCL

ONTNCL

Ontario

Tue 1/27

7:30 am-10:20 am

2 stops18h 50m

Newcastle upon Tyne

Tue 2/3

6:05 am-10:44 pm

2 stops24h 39m

$620

OntarioNewcastle upon Tyne

ONT - NCL

ONTNCL

Ontario

Tue 1/27

7:30 am-10:20 am

2 stops18h 50m

Newcastle upon Tyne

Fri 2/6

6:00 am-11:58 pm

2 stops25h 58m

$621

OntarioBirmingham

ONT - BHX

ONTBHX

Ontario

Fri 2/20

6:10 am-12:35 pm

2 stops22h 25m

Birmingham

Fri 2/27

6:05 am-10:57 pm

2 stops24h 52m

$662

OntarioManchester

ONT - MAN

ONTMAN

Ontario

Thu 3/12

6:00 am-12:20 pm

2 stops23h 20m

Manchester

Mon 3/16

6:00 am-5:41 pm

2 stops18h 41m

$664

OntarioLondon

ONT - LGW

ONTLGW

Ontario

Thu 1/22

11:59 pm-7:30 am

2 stops23h 31m

London Gatwick

Sat 1/31

12:30 pm-2:18 pm

2 stops33h 48m

$684

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Ontario to United Kingdom

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

Prices

Airlines

What is the cheapest month to fly to United Kingdom?

In general, February is the cheapest month to fly from Ontario to United Kingdom. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $654. If you aren’t able to travel to United Kingdom during the month of February, then flying in October is also cheap. Prices for this month can be found on momondo for an average of $679.

How far in advance should I book a flight to United Kingdom?

You are more likely to see cheaper flights to United Kingdom from Ontario when booking weeks ahead of your departure date. In general, you can expect to find flights to United Kingdom for around $848 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to United Kingdom from Ontario for as low as $606 on momondo.

Can stopping save me money on Ontario to United Kingdom flights?

You could potentially save up to 52% on your flight if you consider stops on a Ontario to United Kingdom flight.

Cheap Ontario to United Kingdom flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Ontario to United Kingdom

Fastest flight time	12h 03m
Direct flights	None

The fastest flight from Ontario to United Kingdom takes 12h 03m

There are no direct flights from Ontario to United Kingdom. There are no popular flight routes from Ontario to United Kingdom.

Search flight deals

When did momondo last update prices for flights from Ontario Airport to United Kingdom?
Prices for flights from Ontario Airport to United Kingdom were last updated today.
How many operators does momondo search for flights from Ontario Airport to United Kingdom?
As of January 2026, there are 7 operators available to choose from for flights from Ontario Airport to United Kingdom.
How old do you have to be to fly from Ontario Airport to United Kingdom?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Ontario Airport to United Kingdom.
What documentation or ID do you need to fly to United Kingdom?
The travel and health documents required for your trip to United Kingdom can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at United Kingdom. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Best airlines flying from Ontario to United Kingdom

Compare and see reviews for airlines that fly from Ontario to United Kingdom with momondo

Airline	Rating	Free Cancellation	Price
Virgin Atlantic	PriceFrom $469	Free Cancellation	Rating 7.5 678 reviews	Search Virgin Atlantic flights
Delta	PriceFrom $543	Free Cancellation	Rating 7.9 8,026 reviews	Search Delta flights
American Airlines	PriceFrom $567	Free Cancellation	Rating 7.2 11,097 reviews	Search American Airlines flights
KLM	PriceFrom $580	Free Cancellation	Rating 7.7 1,434 reviews	Search KLM flights
Iberia	PriceFrom $615	Free Cancellation	Rating 7.0 3,076 reviews	Search Iberia flights
British Airways	PriceFrom $647	Free Cancellation	Rating 6.7 7,657 reviews	Search British Airways flights
United Airlines	PriceFrom $665	Free Cancellation	Rating 7.4 9,139 reviews	Search United Airlines flights

Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Ontario to United Kingdom for you.

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

momondo does allow users to show only those flights to United Kingdom from Ontario which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Ontario to United Kingdom?

momondo provides multiple filters to help you find the best flight to United Kingdom from Ontario. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

If you are not ready to book a flight from Ontario to United Kingdom now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to United Kingdom and let you know when they change.