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Cheap flights from Glasgow Intl Airport to Ontario from £381

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 30/8. Fares are subject to change and may not be available on all flights or dates of travel.
GLA — ONT
26 Jul — 2 Aug1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Glasgow Intl to Ontario

Enter your travel dates to find the best prices.

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 26 June 2026.

Thu 17/914:00
GLA
-
ONT
2 stops36h 11m
United Airlines
Mon 21/905:00
ONT
-
GLA
2 stops21h 10m
United Airlines
Deal found 24/6£519
Fri 30/1011:40
GLA
-
ONT
2 stops18h 26m
British Airways
Tue 3/1114:59
ONT
-
GLA
2 stops16h 51m
British Airways
Deal found 25/6£529
Sun 6/907:35
GLA
-
ONT
2 stops22h 20m
British Airways
Sat 19/913:05
ONT
-
GLA
2 stops22h 30m
British Airways
Deal found 22/6£531
Mon 5/1012:25
GLA
-
ONT
2 stops29h 04m
British Airways
Mon 12/1013:31
ONT
-
GLA
2 stops21h 09m
British Airways
Deal found 22/6£563
Thu 10/913:20
GLA
-
ONT
2 stops18h 16m
British Airways
Thu 24/913:05
ONT
-
GLA
2 stops21h 45m
British Airways
Deal found 22/6£587
Thu 17/907:00
GLA
-
ONT
2 stops19h 17m
British Airways
Mon 21/910:25
ONT
-
GLA
2 stops21h 45m
British Airways
Deal found 25/6£645
Sun 1/1105:40
GLA
-
ONT
2 stops20h 38m
Air France
Sat 7/1112:00
ONT
-
GLA
2 stops20h 30m
Air France
Deal found 26/6£648
Wed 1/720:50
GLA
-
ONT
2 stops31h 09m
British Airways
Wed 15/713:11
ONT
-
GLA
2 stops21h 34m
British Airways
Deal found 24/6£810
Wed 1/710:00
GLA
-
ONT
2 stops21h 05m
Multiple Airlines
Tue 7/700:55
ONT
-
GLA
2 stops21h 50m
Multiple Airlines
Deal found 21/6£984
Mon 29/610:00
GLA
-
ONT
2 stops17h 56m
British Airways
Sat 11/713:11
ONT
-
GLA
2 stops21h 19m
British Airways
Deal found 21/6£1,071

Find flight deals from Glasgow Intl to Ontario

Discover tips and strategies to find the most affordable flight options for your journey from Glasgow Intl (GLA) 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 26 June 2026.

Round-trip from

£519

One-way from

£381

Popular in

August

Cheapest in

September

Average price

£674
United Airlines
  • United Airlines
  • 17/9-21/9
  • 4 total stops
  • 57h 21m total
  • Glasgow to Ontario
Search Deals
British Airways
  • British Airways
  • 30/8
  • 2 total stops
  • 23h 55m total
  • Glasgow to Ontario
Search Deals
Highest demand for flights based on searches. 8% potential increase in price (£44 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£16 potential savings vs. average return price).
Search Deals
Average for round-trip flights in June 2026
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Glasgow Intl 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 26 June 2026.
Use the filters below to find and compare flights from Glasgow Intl Airport to Ontario that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

GlasgowOntario

GLA - ONT

GLAONT

Glasgow Intl

Thu 17/9

14:00-18:11

2 stops36h 11m

Ontario

Mon 21/9

05:00-10:10

2 stops21h 10m

£519

GlasgowOntario

GLA - ONT

GLAONT

Glasgow Intl

Fri 30/10

11:40-23:06

2 stops18h 26m

Ontario

Tue 3/11

14:59-15:50

2 stops16h 51m

£529

GlasgowOntario

GLA - ONT

GLAONT

Glasgow Intl

Sun 6/9

07:35-21:55

2 stops22h 20m

Ontario

Sat 19/9

13:05-19:35

2 stops22h 30m

£531

GlasgowOntario

GLA - ONT

GLAONT

Glasgow Intl

Thu 17/9

07:00-18:17

2 stops19h 17m

Ontario

Mon 21/9

10:25-16:10

2 stops21h 45m

£645

GlasgowOntario

GLA - ONT

GLAONT

Glasgow Intl

Sun 1/11

05:40-19:18

2 stops20h 38m

Ontario

Sat 7/11

12:00-16:30

2 stops20h 30m

£648
Fastest return journey

GlasgowOntario

GLA - ONT

GLAONT

Glasgow Intl

Wed 9/9

13:30-22:04

2 stops16h 34m

Ontario

Thu 24/9

13:00-12:55

2 stops15h 55m

£5,886

GlasgowOntario

GLA - ONT

GLAONT

Glasgow Intl

Wed 9/9

13:30-22:04

2 stops16h 34m

Ontario

Wed 23/9

13:00-12:55

2 stops15h 55m

£7,193

GlasgowOntario

GLA - ONT

GLAONT

Glasgow Intl

Fri 11/9

13:30-22:04

2 stops16h 34m

Ontario

Wed 23/9

13:00-12:55

2 stops15h 55m

£7,991
Cheapest one-way

GlasgowOntario

GLA - ONT

GLAONT

Glasgow Intl

Sun 30/8

06:00-21:55

2 stops23h 55m

£381

GlasgowOntario

GLA - ONT

GLAONT

Glasgow Intl

Mon 31/8

19:35-22:59

2 stops35h 24m

£381

Flights are sorted by cheapest return flights first.

Deals found on 23/6

Showing 1-10 of 18 resultsSorted by cheapest first
1
2

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.
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

Find useful and relevant information for your journey from Glasgow Intl 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 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 26m. 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.

See more FAQs

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

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

Yes, we can. To see specific flights from Glasgow Intl 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 Intl to Ontario become cheaper?

Of course! You can now track prices for flights from Glasgow Intl to Ontario and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

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