What airlines fly to United Kingdom?

British Airways, Virgin Atlantic and American Airlines 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 49% 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, United Airlines, and Virgin Atlantic 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 June 2026, there are 5 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.

$274 Cheap Flights from Ontario to the United Kingdom in 2026

Discover deals from 900+ travel sites with momondo.

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.

12:00 pm - 11:40 am

ONT

LHR

15h 40m

1 stop

12:20 pm - 10:43 pm

LHR

ONT

18h 23m

1 stop

$429Virgin Atlantic

Thu, Dec 17 - Tue, Dec 22

7:00 am - 11:40 am

ONT

LHR

20h 40m

1 stop

11:40 am - 11:48 pm

LHR

ONT

20h 08m

2 stops

$431Virgin Atlantic

Thu, Dec 17 - Tue, Dec 22

10:25 am - 9:05 am

ONT

LHR

14h 40m

1 stop

9:15 am - 11:36 pm

LHR

ONT

22h 21m

2 stops

$829British Airways

Mon, Sep 28 - Thu, Oct 1

2:59 pm - 4:35 pm

ONT

GLA

17h 36m

2 stops

11:40 am - 10:23 pm

GLA

ONT

18h 43m

2 stops

$836British Airways

Mon, Nov 2 - Sun, Nov 8

6:53 pm - 8:40 am

ONT

MAN

29h 47m

2 stops

11:30 am - 9:21 pm

MAN

ONT

41h 51m

2 stops

$853United Airlines

Tue, Dec 1 - Tue, Dec 8

7:00 am - 8:25 am

ONT

EDI

17h 25m

1 stop

11:30 am - 10:49 pm

EDI

ONT

19h 19m

1 stop

$877United Airlines

Wed, Sep 23 - Fri, Oct 2

2:22 pm - 5:10 pm

ONT

EDI

18h 48m

2 stops

11:25 am - 10:37 pm

EDI

ONT

19h 12m

2 stops

$904American Airlines

Wed, Sep 16 - Tue, Sep 22

1:05 pm - 4:40 pm

ONT

NCL

19h 35m

2 stops

9:20 am - 11:06 pm

NCL

ONT

20h 46m

2 stops

$937American Airlines

Wed, Sep 9 - Tue, Oct 27

7:05 am - 2:55 pm

ONT

NCL

23h 50m

2 stops

5:50 am - 10:14 pm

NCL

ONT

23h 24m

2 stops

$946Delta

Sun, Sep 6 - Thu, Oct 29

7:05 am - 5:50 pm

ONT

BHX

26h 45m

2 stops

9:25 am - 4:12 pm

BHX

ONT

37h 47m

2 stops

$946Delta

Mon, Sep 7 - Wed, Oct 28

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Lufthansa flights from Ontario to United Kingdom

Our best Lufthansa deals on Ontario to United Kingdom flight tickets

Lufthansa

Sep 20

ONT1:18 pmOntario

12h 22m

1 stop

LHR9:40 amLondon Heathrow

Sep 30

LHR2:50 pmLondon Heathrow

14h 08m

1 stop

ONT8:58 pmOntario

$854

Lufthansa

Jul 7

ONT1:18 pmOntario

15h 07m

1 stop

LHR12:25 pmLondon Heathrow

Jul 14

LHR2:50 pmLondon Heathrow

13h 52m

1 stop

ONT8:42 pmOntario

$1,198

JetBlue flights from Ontario to United Kingdom

Our best JetBlue deals on Ontario to United Kingdom flight tickets

JetBlue

Aug 5

ONT11:59 pmOntario

25h 21m

1 stop

EDI9:20 amEdinburgh Turnhouse

Aug 12

EDI12:10 pmEdinburgh Turnhouse

18h 27m

1 stop

ONT10:37 pmOntario

$977

JetBlue

Aug 17

ONT11:59 pmOntario

25h 21m

1 stop

EDI9:20 amEdinburgh Turnhouse

Aug 31

EDI12:10 pmEdinburgh Turnhouse

18h 28m

1 stop

ONT10:38 pmOntario

$1,015

JetBlue

Sep 5

ONT11:13 pmOntario

26h 07m

1 stop

EDI9:20 amEdinburgh Turnhouse

Sep 15

EDI12:10 pmEdinburgh Turnhouse

16h 03m

1 stop

ONT8:13 pmOntario

$1,032

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Quickest round-trip

OntarioLondon

ONT - LHR

ONTLHR

Ontario

Thu 12/17

12:00 pm-11:40 am

1 stop15h 40m

London Heathrow

Tue 12/22

12:20 pm-10:43 pm

1 stop18h 23m

$429

OntarioLondon

ONT - LHR

ONTLHR

Ontario

Thu 12/17

7:00 am-11:40 am

1 stop20h 40m

London Heathrow

Tue 12/22

11:40 am-11:48 pm

2 stops20h 08m

$431

OntarioLondon

ONT - LHR

ONTLHR

Ontario

Mon 9/28

10:25 am-9:05 am

1 stop14h 40m

London Heathrow

Thu 10/1

9:15 am-11:36 pm

2 stops22h 21m

$829

OntarioGlasgow

ONT - GLA

ONTGLA

Ontario

Mon 11/2

2:59 pm-4:35 pm

2 stops17h 36m

Glasgow Intl

Sun 11/8

11:40 am-10:23 pm

2 stops18h 43m

$836

OntarioManchester

ONT - MAN

ONTMAN

Ontario

Tue 12/1

6:53 pm-8:40 am

2 stops29h 47m

Manchester

Tue 12/8

11:30 am-9:21 pm

2 stops41h 51m

$853

OntarioEdinburgh

ONT - EDI

ONTEDI

Ontario

Wed 9/23

7:00 am-8:25 am

1 stop17h 25m

Edinburgh Turnhouse

Fri 10/2

11:30 am-10:49 pm

1 stop19h 19m

$877

OntarioEdinburgh

ONT - EDI

ONTEDI

Ontario

Wed 9/16

2:22 pm-5:10 pm

2 stops18h 48m

Edinburgh Turnhouse

Tue 9/22

11:25 am-10:37 pm

2 stops19h 12m

$904

OntarioNewcastle upon Tyne

ONT - NCL

ONTNCL

Ontario

Wed 9/9

1:05 pm-4:40 pm

2 stops19h 35m

Newcastle upon Tyne

Tue 10/27

9:20 am-11:06 pm

2 stops20h 46m

$937

OntarioNewcastle upon Tyne

ONT - NCL

ONTNCL

Ontario

Sun 9/6

7:05 am-2:55 pm

2 stops23h 50m

Newcastle upon Tyne

Thu 10/29

5:50 am-10:14 pm

2 stops23h 24m

$946

OntarioBirmingham

ONT - BHX

ONTBHX

Ontario

Mon 9/7

7:05 am-5:50 pm

2 stops26h 45m

Birmingham

Wed 10/28

9:25 am-4:12 pm

2 stops37h 47m

$946

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, September 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 $251. If you aren’t able to travel to United Kingdom during the month of September, then flying in December is also cheap. Prices for this month can be found on momondo for an average of $282.

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

You could potentially save up to 19% 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 16m
Direct flights	None

The fastest flight from Ontario to United Kingdom takes 12h 16m

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

Search flight deals

Frequently asked questions about flying from Ontario to the 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 June 2026, there are 5 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
Delta	PriceFrom $570	Free Cancellation	Rating 7.8 8,433 reviews	Search Delta flights
KLM	PriceFrom $580	Free Cancellation	Rating 7.8 1,530 reviews	Search KLM flights
American Airlines	PriceFrom $617	Free Cancellation	Rating 7.1 11,752 reviews	Search American Airlines flights
British Airways	PriceFrom $624	Free Cancellation	Rating 6.7 8,069 reviews	Search British Airways flights
United Airlines	PriceFrom $665	Free Cancellation	Rating 7.4 9,884 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.