How long is the flight from Glasgow to Ontario?

A quick flight from Glasgow to Ontario can take about 20h 14m. Delta provides one of the quickest options available for as low as £452. Glasgow and Ontario are separated by a distance of 5088 mi. Both multi-stop and direct flights can be found to your destination and back.

What is the cheapest airline to fly from Glasgow to Ontario round-trip?

British Airways, at £429, was found to be the cheapest airline from Glasgow to Ontario..

What is the cheapest day to fly from Glasgow to Ontario?

Travellers seeking maximum savings on their Glasgow to Ontario flight should consider departing on Monday mornings when fares are most often at their lowest. Thursday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

In terms of precipitation, rainfall in Ontario ranges from 3.0 - 86.0 inches per month. February is typically the wettest month, when rainfall can reach 86.0 mm. June is typically the driest time to visit Ontario when rainfall is around 3.0 mm.

If weather is an important factor for your trip to Ontario, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 26.0 C. Travellers hoping to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 12.0 C).

What is the cheapest time of day to fly from GLA to ONT?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Glasgow to Ontario as you normally would.

What airport do you fly into for flights to Ontario from Glasgow?

Located just 3.1 mi from the city center, Ontario is the airport most travelers will use when flying to Ontario from Glasgow. Booking flights from Glasgow to Ontario (ONT) should be relatively easy as there are 0 daily inbound flights from Glasgow from 1 airline.

Can I find deals for flights from Glasgow to Ontario that include hotel bookings?

Yes. In addition to deals on Glasgow to Ontario flights, Cheapflights offers holiday packages that include both flights and hotel.

How can I find direct flights from Glasgow to Ontario?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Glasgow to Ontario.

Can I find deals for business class flights from Glasgow to Ontario?

Yes. Cheapflights offers flight deals from Glasgow to Ontario by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

£448+ Flights from Glasgow to Ontario

Cheap flight deals from Glasgow to Ontario

Round-trip from	£452
One-way from	£448
Popular in	August
Cheapest in	March
Average price	£481

Delta
31/10-7/11
4 total stops
45h 14m total
Glasgow to Ontario

Search Deals

Iberia
4/11
2 total stops
18h 49m total
Glasgow to Ontario

Search Deals

Highest demand for flights based on searches. 12% potential increase in price (£55 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 3% potential price decrease (£14 potential savings vs. average return price).

Search Deals

Average for round-trip flights in September 2025

Search Deals

Find flight deals from Glasgow to Ontario

Cheapest flights from Glasgow to Ontario
Explore the most affordable flight options available from Glasgow to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 18 September 2025.

Fri 31/1006:05GLA - ONT

2 stops20h 14mDelta

Fri 7/1107:35ONT - GLA

2 stops25h 00mDelta

Deal found 16/9£452

Tue 7/1006:00GLA - ONT

2 stops25h 39mVirgin Atlantic

Fri 24/1009:50ONT - GLA

2 stops22h 20mVirgin Atlantic

Deal found 17/9£512

Fri 19/1210:40GLA - ONT

2 stops21h 06mIberia

Thu 1/110:50ONT - GLA

2 stops21h 50mIberia

Deal found 15/9£973

Fri 31/1020:10GLA - ONT

3 stops31h 34mMultiple Airlines

Fri 7/1105:05ONT - GLA

3 stops22h 25mMultiple Airlines

Deal found 16/9£999

Tue 25/1112:35GLA - ONT

2 stops19h 24mMultiple Airlines

Sat 27/1210:25ONT - GLA

2 stops15h 30mMultiple Airlines

Deal found 16/9£1,205

Fri 19/1208:15GLA - ONT

2 stops21h 59mMultiple Airlines

Thu 1/105:05ONT - GLA

3 stops26h 55mMultiple Airlines

Deal found 15/9£1,479

Fri 31/1008:15GLA - ONT

3 stops20h 18mAmerican Airlines

Fri 7/1112:46ONT - GLA

2 stops18h 24mAmerican Airlines

Deal found 16/9£4,452

Best flights from Glasgow to Ontario
Discover carefully curated flight deals from Glasgow to Ontario that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 18 September 2025.

Fri 31/1006:05GLA - ONT

2 stops20h 14mDelta

Fri 7/1107:35ONT - GLA

2 stops25h 00mDelta

Deal found 16/9£452

Tue 7/1006:00GLA - ONT

2 stops25h 39mVirgin Atlantic

Fri 24/1009:50ONT - GLA

2 stops22h 20mVirgin Atlantic

Deal found 17/9£512

Fri 19/1210:40GLA - ONT

2 stops21h 06mIberia

Thu 1/110:50ONT - GLA

2 stops21h 50mIberia

Deal found 15/9£973

Fri 31/1020:10GLA - ONT

3 stops31h 34mMultiple Airlines

Fri 7/1105:05ONT - GLA

3 stops22h 25mMultiple Airlines

Deal found 16/9£999

Tue 25/1112:35GLA - ONT

2 stops19h 24mMultiple Airlines

Sat 27/1210:25ONT - GLA

2 stops15h 30mMultiple Airlines

Deal found 16/9£1,205

Fri 19/1208:15GLA - ONT

2 stops21h 59mMultiple Airlines

Thu 1/105:05ONT - GLA

3 stops26h 55mMultiple Airlines

Deal found 15/9£1,479

Fri 31/1008:15GLA - ONT

3 stops20h 18mAmerican Airlines

Fri 7/1112:46ONT - GLA

2 stops18h 24mAmerican Airlines

Deal found 16/9£4,452

Last-minute flights from Glasgow to Ontario
Discover last-minute flight deals from Glasgow to Ontario. Data last updated 18 September 2025 and is based on user searches.

Tue 7/1006:00GLA - ONT

2 stops25h 39mVirgin Atlantic

Fri 24/1009:50ONT - GLA

2 stops22h 20mVirgin Atlantic

Deal found 17/9£512

Fri 31/1006:05GLA - ONT

2 stops20h 14mDelta

Fri 7/1107:35ONT - GLA

2 stops25h 00mDelta

Deal found 16/9£452

Fri 31/1020:10GLA - ONT

3 stops31h 34mMultiple Airlines

Fri 7/1105:05ONT - GLA

3 stops22h 25mMultiple Airlines

Deal found 16/9£999

Fri 31/1008:15GLA - ONT

3 stops20h 18mAmerican Airlines

Fri 7/1112:46ONT - GLA

2 stops18h 24mAmerican Airlines

Deal found 16/9£4,452

One-way flights from Glasgow to Ontario
Search for one-way flight options from Glasgow to Ontario. Find affordable one-way fares based on user searches. Data last updated 18 September 2025.

Tue 4/1111:40GLA - ONT

2 stops18h 49mIberia

Deal found 16/9£448

Tue 21/1008:35GLA - ONT

2 stops18h 17mBritish Airways

Deal found 16/9£529

Mon 20/1011:35GLA - ONT

2 stops18h 43mAmerican Airlines

Deal found 16/9£544

Thu 25/908:35GLA - ONT

2 stops21h 13mBritish Airways

Deal found 16/9£624

Thu 30/1006:35GLA - ONT

2 stops19h 18mBritish Airways

Deal found 17/9£828

Sun 30/1111:40GLA - ONT

2 stops18h 43mBritish Airways

Deal found 16/9£939

Fly from

Fly to

Route

Depart

Return

Price

GlasgowOntario

GLA - ONT

GLAONT

Glasgow Intl

Fri 31/10

06:05-19:19

2 stops20h 14m

Ontario

Fri 7/11

07:35-16:35

2 stops25h 00m

£452

GlasgowOntario

GLA - ONT

GLAONT

Glasgow Intl

Tue 7/10

06:00-23:39

2 stops25h 39m

Ontario

Fri 24/10

09:50-16:10

2 stops22h 20m

£512

GlasgowOntario

GLA - ONT

GLAONT

Glasgow Intl

Fri 19/12

10:40-23:46

2 stops21h 06m

Ontario

Thu 1/1

10:50-16:40

2 stops21h 50m

£973

GlasgowOntario

GLA - ONT

GLAONT

Glasgow Intl

Fri 31/10

20:10-20:44

3 stops31h 34m

Ontario

Fri 7/11

05:05-11:30

3 stops22h 25m

£999

GlasgowOntario

GLA - ONT

GLAONT

Glasgow Intl

Tue 25/11

12:35-23:59

2 stops19h 24m

Ontario

Sat 27/12

10:25-09:55

2 stops15h 30m

£1,205

GlasgowOntario

GLA - ONT

GLAONT

Glasgow Intl

Fri 19/12

08:15-22:14

2 stops21h 59m

Ontario

Thu 1/1

05:05-16:00

3 stops26h 55m

£1,479

GlasgowOntario

GLA - ONT

GLAONT

Glasgow Intl

Fri 31/10

08:15-21:33

3 stops20h 18m

Ontario

Fri 7/11

12:46-15:10

2 stops18h 24m

£4,452

GlasgowOntario

GLA - ONT

GLAONT

Glasgow Intl

Tue 4/11

11:40-22:29

2 stops18h 49m

£448

GlasgowOntario

GLA - ONT

GLAONT

Glasgow Intl

Mon 17/11

11:35-22:29

2 stops18h 54m

£448

GlasgowOntario

GLA - ONT

GLAONT

Glasgow Intl

Tue 21/10

08:35-18:52

2 stops18h 17m

£529

Flights are sorted by cheapest return flights first.

Deals found on 16/9

Showing 1-10 of 12 results

Best time to book a flight from Glasgow to Ontario

Have a flexible travel schedule? Discover the best time to fly to Ontario from Glasgow with our price prediction graph.

Estimated return 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.

Cheapflights Insights

Everything you need to know about your flight from Glasgow to Ontario

What is the cheapest month to book a flight from Glasgow to Ontario?

Currently, March is the cheapest month in which you can book a flight from Glasgow to Ontario (average of £516). Flying from Glasgow to Ontario in August is currently the most expensive (average of £827). 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.

Reviews of airlines servicing Ontario

See what other customers who have flown with British Airways from Glasgow to Ontario have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

British Airways

6.7

Okay

7,367 reviews

Check prices

Reviews

1 / 20

6.0

Good

Anonymous,May 2025

LHR - LAX

We needed assistance (wheelchair, golf cart, whatever ) to get to next gate. We requested it. None was provided.

British Airways

6.7

Okay

7,367 reviews

British Airways

6.7

Okay

7,367 reviews

Check prices

Reviews

1 / 20

6.0

Good

Anonymous,May 2025

LHR - LAX

We needed assistance (wheelchair, golf cart, whatever ) to get to next gate. We requested it. None was provided.

Related info for your journey

What airport do you fly into for flights to Ontario from Glasgow?
Located just 3.1 mi from the city center, Ontario is the airport most travelers will use when flying to Ontario from Glasgow. Booking flights from Glasgow to Ontario (ONT) should be relatively easy as there are 0 daily inbound flights from Glasgow from 1 airline.
How long is the flight from Glasgow to Ontario?
A quick flight from Glasgow to Ontario can take about 20h 14m. Delta provides one of the quickest options available for as low as £452. Glasgow and Ontario are separated by a distance of 5088 mi. Both multi-stop and direct flights can be found to your destination and back.
What is the cheapest airline to fly from Glasgow to Ontario round-trip?
British Airways, at £429, was found to be the cheapest airline from Glasgow to Ontario..
Can I find deals for flights from Glasgow to Ontario that include hotel bookings?
Yes. In addition to deals on Glasgow to Ontario flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from Glasgow to Ontario?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Glasgow to Ontario.
Can I find deals for business class flights from Glasgow to Ontario?
Yes. Cheapflights offers flight deals from Glasgow to Ontario by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from Glasgow to Ontario?
Currently, March is the cheapest month in which you can book a flight from Glasgow to Ontario (average of £516). Flying from Glasgow to Ontario in August is currently the most expensive (average of £827). 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.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

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Top airline flying from Glasgow to Ontario

Airline	Cheapest	Average	Flexibility	On-time
British Airways	Cheapest£429	Average£488	FlexibilityNo cancel fee	On-time70%	Search British Airways flights

Fly with Cheapflights

How does Cheapflights help users find flights from Glasgow to Ontario?

Cheapflights makes it easy to find Glasgow to Ontario flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

Why should you use Cheapflights to find cheap flight tickets from Glasgow to Ontario?

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Glasgow to Ontario.

Can Cheapflights find flights from Glasgow to Ontario with no change fees?

Yes, we can. To see specific flights from Glasgow to Ontario with no change fees, users can toggle flexible booking options after using the search form above to find flights.

Can Cheapflights notify me if prices for flights from Glasgow to Ontario become cheaper?

Not ready to book yet? You can track prices for flights from Glasgow to Ontario on Cheapflights with our Price Alert feature and get notified when better prices are available.

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Cheap flights from Glasgow to Ontario from £448

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 4/11. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Glasgow to Ontario

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Glasgow to Ontario

Cheapest flights from Glasgow to OntarioExplore the most affordable flight options available from Glasgow to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 18 September 2025.

Explore the most affordable flight options available from Glasgow to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 18 September 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Glasgow to Ontario that are best for you.

Best time to book a flight from Glasgow to Ontario

Have a flexible travel schedule? Discover the best time to fly to Ontario from Glasgow with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from Glasgow to Ontario

What is the cheapest month to book a flight from Glasgow to Ontario?

Reviews of airlines servicing Ontario

See what other customers who have flown with British Airways from Glasgow to Ontario have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from Glasgow to Ontario. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

What airport do you fly into for flights to Ontario from Glasgow?

How long is the flight from Glasgow to Ontario?

What is the cheapest airline to fly from Glasgow to Ontario round-trip?

Can I find deals for flights from Glasgow to Ontario that include hotel bookings?

How can I find direct flights from Glasgow to Ontario?

Can I find deals for business class flights from Glasgow to Ontario?

What is the cheapest month to book a flight from Glasgow to Ontario?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Glasgow to Ontario

See prices for flight routes from nearby airports that may be better suited for you.

Top airline flying from Glasgow to Ontario

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Glasgow to Ontario?

Why should you use Cheapflights to find cheap flight tickets from Glasgow to Ontario?

Can Cheapflights find flights from Glasgow to Ontario with no change fees?

Can Cheapflights notify me if prices for flights from Glasgow to Ontario become cheaper?

100% Free

Book with Flexibility

Travel Smart

Cheapest flights from Glasgow to Ontario
Explore the most affordable flight options available from Glasgow to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 18 September 2025.