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Cheap flights from Glasgow to Ontario from £592

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/1. Fares are subject to change and may not be available on all flights or dates of travel.
GLA — ONT
10 Sep — 17 Sep1
1 adult

Cheap flight deals from Glasgow to Ontario

Discover tips and strategies to find the most affordable flight options for your journey from Glasgow (GG1) to Ontario (ONT). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 5 September 2025.

Round-trip from

£592

Popular in

August

Cheapest in

March

Average price

£511
British Airways
  • British Airways
  • 9/1-21/1
  • 4 total stops
  • 40h 47m total
  • Glasgow to Ontario
Search Deals
Highest demand for flights based on searches. 14% potential increase in price (£73 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (£18 potential savings vs. average return price).
Search Deals
Average for round-trip flights in September 2025
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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 5 September 2025.

Sat 4/1016:55GLA - ONT
2 stops38h 47mVirgin Atlantic
Sat 25/1013:15ONT - GLA
2 stops25h 55mVirgin Atlantic
Deal found 4/9£645
Sat 18/1007:55GLA - ONT
2 stops22h 47mIberia
Thu 23/1008:15ONT - GLA
2 stops18h 00mIberia
Deal found 4/9£866
Sat 20/906:00GLA - ONT
2 stops19h 00mDelta
Wed 24/913:15ONT - GLA
2 stops15h 45mDelta
Deal found 3/9£1,274
Sat 20/906:00GLA - ONT
2 stops19h 00mDelta
Tue 23/913:15ONT - GLA
2 stops15h 45mDelta
Deal found 3/9£1,860
Sun 14/906:00GLA - ONT
2 stops25h 42mVirgin Atlantic
Wed 17/906:00ONT - GLA
2 stops23h 00mVirgin Atlantic
Deal found 3/9£7,712

Cheapflights Fare Finder

 
Customise your flight search to find flights from Glasgow to Ontario that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 5 September 2025.
Use the filters below to find and compare flights from Glasgow to Ontario that are best for you.

Fly from

Glasgow

Fly to

Ontario

Route

Depart

Return

Price

GlasgowOntario

GLA - ONT

GLAONT

Glasgow Intl

Fri 9/1

10:40-22:37

2 stops19h 57m

Ontario

Wed 21/1

11:00-15:50

2 stops20h 50m

£592

GlasgowOntario

GLA - ONT

GLAONT

Glasgow Intl

Thu 8/1

20:20-22:02

2 stops33h 42m

Ontario

Tue 20/1

08:43-09:50

2 stops17h 07m

£626

GlasgowOntario

GLA - ONT

GLAONT

Glasgow Intl

Thu 8/1

20:20-22:02

2 stops33h 42m

Ontario

Sun 25/1

10:57-14:35

2 stops19h 38m

£626

GlasgowOntario

GLA - ONT

GLAONT

Glasgow Intl

Sat 4/10

16:55-23:42

2 stops38h 47m

Ontario

Sat 25/10

13:15-23:10

2 stops25h 55m

£645

GlasgowOntario

GLA - ONT

GLAONT

Glasgow Intl

Sat 10/1

18:50-22:02

2 stops35h 12m

Ontario

Sun 25/1

10:57-14:35

2 stops19h 38m

£680

GlasgowOntario

GLA - ONT

GLAONT

Glasgow Intl

Sat 18/10

07:55-22:42

2 stops22h 47m

Ontario

Thu 23/10

08:15-10:15

2 stops18h 00m

£866

GlasgowOntario

GLA - ONT

GLAONT

Glasgow Intl

Sat 20/9

06:00-17:00

2 stops19h 00m

Ontario

Wed 24/9

13:15-13:00

2 stops15h 45m

£1,274

GlasgowOntario

GLA - ONT

GLAONT

Glasgow Intl

Sat 20/9

06:00-17:00

2 stops19h 00m

Ontario

Tue 23/9

13:15-13:00

2 stops15h 45m

£1,860

GlasgowOntario

GLA - ONT

GLAONT

Glasgow Intl

Wed 24/12

09:45-23:46

2 stops22h 01m

£1,131

GlasgowOntario

GLA - ONT

GLAONT

Glasgow Intl

Thu 25/12

09:55-21:52

2 stops19h 57m

£1,173

Flights are sorted by cheapest return flights first.

Deals found on 3/9

Showing 1-10 of 20 results
1
2

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

Get insights into the airlines that provide service to Ontario. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Ontario. Reviews last updated 5 September 2025.
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
7,348 reviews
Check prices

Crew

7.6

Boarding

6.9

Overall

6.7

Food

6.3

Comfort

6.7

Entertainment

6.4

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
7,348 reviews
British Airways
6.7
Okay
7,348 reviews
Check prices

Crew

7.6

Boarding

6.9

Overall

6.7

Food

6.3

Comfort

6.7

Entertainment

6.4

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

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?

    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 33h 42m. Iberia provides one of the quickest options available for as low as £626. 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 £436, was found to be the cheapest airline from Glasgow to Ontario..

  • What are the cheapest airlines to fly from Glasgow to Ontario one-way?

    The cheapet airlines for a one-way flight from Glasgow to Ontario are British Airways (£1,131), Iberia (£1,184), and Delta (£1,198).

  • 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

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Alternative routes for Glasgow to Ontario

See prices for flight routes from nearby airports that may be better suited for you.
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Top airline flying from Glasgow to Ontario

Discover the top airline that operate flights from Glasgow to Ontario. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 5 September 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest£436Average£496FlexibilityNo cancel feeOn-time70%
Search British Airways flights

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?

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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