How long is the flight from Glasgow Intl Airport to Ontario?

Departing from Glasgow Intl Airport to Ontario will take you 18h 43m. There are 5088 mi between Glasgow Intl Airport and Ontario. Both multi-stop and direct flights can be found to your destination and back.

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 Intl Airport to Ontario as you normally would.

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

Most people fly into Ontario (ONT) if they book a flight to Ontario from Glasgow Intl. On average, Ontario has 0 inbound flights from Glasgow Intl per day from 0 airlines. Ontario is conveniently located just 3.1 mi from Ontario’s city center.

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

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

How can I find direct flights from Glasgow Intl to Ontario?

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

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

Yes. Cheapflights offers flight deals from Glasgow Intl 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.

£526+ Cheap Flights from Glasgow Intl Airport to Ontario

Cheap flight deals from Glasgow Intl to Ontario

Enter your travel dates to find the best prices.

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Cheapest flights from Glasgow Intl to Ontario
Explore the most affordable flight options available from Glasgow Intl to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 5 November 2026.

Thu 10/1217:15 -

2 stops37h 44m

Fri 25/1207:00 -

2 stops21h 45m

Deal found 31/10£695

Fri 20/1106:35 -

2 stops20h 17m

Fri 4/1213:02 -

2 stops15h 58m

Deal found 3/11£723

Thu 19/1111:30 -

2 stops19h 06m

Mon 23/1106:00 -

2 stops20h 05m

Deal found 3/11£727

Thu 24/1210:20 -

2 stops20h 02m

Mon 4/110:34 -

2 stops19h 56m

Deal found 3/11£750

Wed 16/1210:55 -

2 stops20h 53m

Wed 23/1214:22 -

2 stops18h 18m

Deal found 1/11£825

Tue 10/1111:55 -

2 stops19h 02m

Tue 17/1116:51 -

2 stops16h 19m

Deal found 1/11£827

Fri 18/1206:35 -

2 stops20h 15m

Sat 26/1207:00 -

2 stops19h 50m

Deal found 3/11£839

Tue 10/1120:50 -

3 stops35h 01m

Tue 17/1106:30 -

2 stops19h 25m

Deal found 31/10£857

Thu 5/1106:00 -

2 stops18h 23m

Thu 12/1107:05 -

2 stops17h 25m

Deal found 1/11£860

Thu 5/1106:00 -

2 stops18h 23m

Thu 12/1107:05 -

2 stops17h 25m

Deal found 4/11£865

Thu 19/1112:05 -

3 stops26h 15m

Mon 23/1114:01 -

3 stops33h 54m

Deal found 3/11£875

Thu 10/1211:55 -

2 stops19h 04m

Fri 25/1210:05 -

2 stops15h 50m

Deal found 31/10£883

Find flight deals from Glasgow Intl to Ontario

Round-trip from	£695
One-way from	£526
Popular in	July
Cheapest in	February
Average price	£716

Virgin Atlantic
10/12-25/12
4 total stops
59h 29m total
Glasgow to Ontario

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British Airways
28/3-31/12
2 total stops
17h 58m total
Glasgow to Ontario

Search Deals

Highest demand for flights based on searches. 11% potential increase in price (£70 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 3% potential price decrease (£17 potential savings vs. average return price).

Search Deals

Average for round-trip flights in November 2026

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Cheapflights Fare Finder

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

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Route

Depart

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Price

Cheapest return flight

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GlasgowOntario

GLA Glasgow Intl - ONT Ontario

GLAONT

Glasgow Intl

Sun 28/3

12:15-22:13

2 stops17h 58m

Ontario

Wed 31/12

00:00-09:00

Nonstop0h 00m

£526

GlasgowOntario

GLA Glasgow Intl - ONT Ontario

GLAONT

Glasgow Intl

Sat 27/3

11:40-23:59

2 stops19h 19m

Ontario

Wed 31/12

00:00-09:00

Nonstop0h 00m

£538

GlasgowOntario

GLA Glasgow Intl - ONT Ontario

GLAONT

Glasgow Intl

Sat 27/3

11:40-23:59

2 stops19h 19m

Ontario

Wed 31/12

00:00-09:00

Nonstop0h 00m

£548

GlasgowOntario

GLA Glasgow Intl - ONT Ontario

GLAONT

Glasgow Intl

Thu 10/12

17:15-22:59

2 stops37h 44m

Ontario

Fri 25/12

07:00-12:45

2 stops21h 45m

£695

GlasgowOntario

GLA Glasgow Intl - ONT Ontario

GLAONT

Glasgow Intl

Thu 11/3

11:30-22:13

2 stops18h 43m

Ontario

Sun 14/3

16:25-16:40

2 stops17h 15m

£699

GlasgowOntario

GLA Glasgow Intl - ONT Ontario

GLAONT

Glasgow Intl

Mon 26/4

12:25-21:59

2 stops17h 34m

Ontario

Wed 5/5

16:52-17:50

2 stops16h 58m

£704

GlasgowOntario

GLA Glasgow Intl - ONT Ontario

GLAONT

Glasgow Intl

Fri 20/11

06:35-18:52

2 stops20h 17m

Ontario

Fri 4/12

13:02-13:00

2 stops15h 58m

£723

GlasgowOntario

GLA Glasgow Intl - ONT Ontario

GLAONT

Glasgow Intl

Wed 2/12

11:35-22:20

2 stops18h 45m

Ontario

Wed 31/12

00:00-09:00

Nonstop0h 00m

£724

GlasgowOntario

GLA Glasgow Intl - ONT Ontario

GLAONT

Glasgow Intl

Wed 27/1

10:55-23:13

2 stops20h 18m

Ontario

Sun 31/1

07:00-14:35

2 stops23h 35m

£725

GlasgowOntario

GLA Glasgow Intl - ONT Ontario

GLAONT

Glasgow Intl

Thu 21/1

09:30-23:13

2 stops21h 43m

Ontario

Mon 25/1

10:38-16:25

2 stops21h 47m

£729

Flights are sorted by cheapest return flights first.

Deals found on 31/10

Showing 1-10 of 15 resultsSorted by cheapest first

Best time to book a flight from Glasgow Intl to Ontario

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

GLA-ONT

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.

Related info for your journey

What airport do you fly into for flights to Ontario from Glasgow Intl?
Most people fly into Ontario (ONT) if they book a flight to Ontario from Glasgow Intl. On average, Ontario has 0 inbound flights from Glasgow Intl per day from 0 airlines. Ontario is conveniently located just 3.1 mi from Ontario’s city center.
How long is the flight from Glasgow Intl Airport to Ontario?
Departing from Glasgow Intl Airport to Ontario will take you 18h 43m. There are 5088 mi between Glasgow Intl Airport and Ontario. Both multi-stop and direct flights can be found to your destination and back.
Can I find deals for flights from Glasgow Intl to Ontario that include hotel bookings?
Yes. In addition to deals on Glasgow Intl to Ontario flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from Glasgow Intl to Ontario?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Glasgow Intl to Ontario.
Can I find deals for business class flights from Glasgow Intl to Ontario?
Yes. Cheapflights offers flight deals from Glasgow Intl 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.

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

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Cheap flights from Glasgow Intl Airport to Ontario from £526

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 28/3. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Glasgow Intl to Ontario

Cheapest flights from Glasgow Intl to OntarioExplore the most affordable flight options available from Glasgow Intl to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 5 November 2026.

Explore the most affordable flight options available from Glasgow Intl to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 5 November 2026.

Best flights from Glasgow Intl to OntarioDiscover carefully curated flight deals from Glasgow Intl to Ontario that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 5 November 2026.

Discover carefully curated flight deals from Glasgow Intl to Ontario that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 5 November 2026.

Last-minute flights from Glasgow Intl to OntarioDiscover last-minute flight deals from Glasgow Intl to Ontario. Data last updated 5 November 2026 and is based on user searches.

Discover last-minute flight deals from Glasgow Intl to Ontario. Data last updated 5 November 2026 and is based on user searches.

One-way flights from Glasgow Intl to OntarioSearch for one-way flight options from Glasgow Intl to Ontario. Find affordable one-way fares based on user searches. Data last updated 5 November 2026.

Search for one-way flight options from Glasgow Intl to Ontario. Find affordable one-way fares based on user searches. Data last updated 5 November 2026.

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Best time to book a flight from Glasgow Intl to Ontario

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Related info for your journey

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

How long is the flight from Glasgow Intl Airport to Ontario?

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

How can I find direct flights from Glasgow Intl to Ontario?

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

Browse thousands of different options on Cheapflights for your next trip

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Other flights to Ontario

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

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Cheapest flights from Glasgow Intl to Ontario
Explore the most affordable flight options available from Glasgow Intl to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 5 November 2026.

Best flights from Glasgow Intl to Ontario
Discover carefully curated flight deals from Glasgow Intl to Ontario that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 5 November 2026.

Last-minute flights from Glasgow Intl to Ontario
Discover last-minute flight deals from Glasgow Intl to Ontario. Data last updated 5 November 2026 and is based on user searches.

One-way flights from Glasgow Intl to Ontario
Search for one-way flight options from Glasgow Intl to Ontario. Find affordable one-way fares based on user searches. Data last updated 5 November 2026.