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Cheap flights from Glasgow Intl Airport to Ontario from £427

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 28/9. Fares are subject to change and may not be available on all flights or dates of travel.
GLA — ONT
10 Jun — 17 Jun1
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 11 May 2026.

Tue 2/608:35
GLA
-
ONT
2 stops22h 03m
British Airways
Tue 23/613:11
ONT
-
GLA
2 stops21h 29m
British Airways
Deal found 8/5£662
Wed 28/1005:55
GLA
-
ONT
2 stops20h 02m
British Airways
Sun 1/1116:47
ONT
-
GLA
2 stops18h 38m
British Airways
Deal found 7/5£686
Thu 3/1208:40
GLA
-
ONT
2 stops23h 15m
British Airways
Mon 7/1214:56
ONT
-
GLA
2 stops19h 19m
British Airways
Deal found 8/5£687
Mon 1/614:00
GLA
-
ONT
2 stops30h 12m
United Airlines
Mon 8/605:00
ONT
-
GLA
2 stops21h 10m
United Airlines
Deal found 9/5£813
Mon 13/710:00
GLA
-
ONT
2 stops17h 59m
British Airways
Wed 22/713:10
ONT
-
GLA
2 stops21h 35m
British Airways
Deal found 10/5£869
Fri 29/509:30
GLA
-
ONT
2 stops18h 26m
British Airways
Sat 6/613:11
ONT
-
GLA
2 stops21h 19m
British Airways
Deal found 8/5£883
Wed 1/714:00
GLA
-
ONT
2 stops39h 55m
United Airlines
Wed 8/713:50
ONT
-
GLA
2 stops36h 20m
United Airlines
Deal found 9/5£886
Sun 7/621:15
GLA
-
ONT
2 stops33h 24m
British Airways
Sun 14/613:11
ONT
-
GLA
2 stops21h 34m
British Airways
Deal found 8/5£953
Sat 16/514:00
GLA
-
ONT
2 stops30h 38m
United Airlines
Sun 31/518:30
ONT
-
GLA
2 stops31h 40m
United Airlines
Deal found 7/5£1,008

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 11 May 2026.

Round-trip from

£662

One-way from

£427

Popular in

August

Cheapest in

September

Average price

£563
British Airways
  • British Airways
  • 2/6-23/6
  • 4 total stops
  • 43h 32m total
  • Glasgow to Ontario
Search Deals
28/9
  • 28/9
  • 2 total stops
  • 31h 04m total
  • Glasgow to Ontario
Search Deals
Highest demand for flights based on searches. 9% potential increase in price (£45 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 May 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 11 May 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

Tue 2/6

08:35-22:38

2 stops22h 03m

Ontario

Tue 23/6

13:11-18:40

2 stops21h 29m

£662

GlasgowOntario

GLA - ONT

GLAONT

Glasgow Intl

Wed 28/10

05:55-18:57

2 stops20h 02m

Ontario

Sun 1/11

16:47-19:25

2 stops18h 38m

£686

GlasgowOntario

GLA - ONT

GLAONT

Glasgow Intl

Mon 1/6

14:00-12:12

2 stops30h 12m

Ontario

Mon 8/6

05:00-10:10

2 stops21h 10m

£813

GlasgowOntario

GLA - ONT

GLAONT

Glasgow Intl

Mon 13/7

10:00-19:59

2 stops17h 59m

Ontario

Wed 22/7

13:10-18:45

2 stops21h 35m

£869

GlasgowOntario

GLA - ONT

GLAONT

Glasgow Intl

Wed 1/7

14:00-21:55

2 stops39h 55m

Ontario

Wed 8/7

13:50-10:10

3 stops36h 20m

£886

GlasgowOntario

GLA - ONT

GLAONT

Glasgow Intl

Sun 7/6

21:15-22:39

2 stops33h 24m

Ontario

Sun 14/6

13:11-18:45

2 stops21h 34m

£953

GlasgowOntario

GLA - ONT

GLAONT

Glasgow Intl

Fri 17/7

14:00-21:55

2 stops39h 55m

Ontario

Sat 25/7

05:45-10:10

2 stops20h 25m

£1,062

GlasgowOntario

GLA - ONT

GLAONT

Glasgow Intl

Fri 3/7

13:25-09:29

2 stops28h 04m

Ontario

Fri 10/7

13:10-20:15

2 stops23h 05m

£1,127

GlasgowOntario

GLA - ONT

GLAONT

Glasgow Intl

Thu 2/7

14:20-23:11

2 stops16h 51m

Ontario

Thu 9/7

14:05-13:25

2 stops15h 20m

£1,919

GlasgowOntario

GLA - ONT

GLAONT

Glasgow Intl

Tue 2/6

16:55-18:00

3 stops33h 05m

Ontario

Tue 23/6

17:21-23:10

2 stops21h 49m

£2,740

Flights are sorted by cheapest return flights first.

Deals found on 6/5

Showing 1-10 of 21 resultsSorted by cheapest first
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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 22h 03m. 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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How does Cheapflights help users find flights from Glasgow Intl to Ontario?

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

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Glasgow Intl to Ontario for you. Better yet — we are completely free to use.

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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