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Cheap flights from Ontario to Glasgow Intl Airport from £239

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 1/12. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — GLA
29 Jul — 5 Aug1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Ontario to Glasgow Intl

Enter your travel dates to find the best prices.

Cheapest flights from Ontario to Glasgow Intl
Explore the most affordable flight options available from Ontario to Glasgow Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 29 June 2026.

Wed 11/1114:59
ONT
-
GLA
2 stops16h 51m
British Airways
Wed 18/1111:40
GLA
-
ONT
2 stops18h 43m
British Airways
Deal found 27/6£632
Mon 5/1016:29
ONT
-
GLA
2 stops18h 11m
British Airways
Tue 20/1007:00
GLA
-
ONT
2 stops19h 44m
British Airways
Deal found 28/6£682
Sun 6/910:00
ONT
-
GLA
2 stops25h 35m
British Airways
Tue 6/1009:35
GLA
-
ONT
2 stops19h 33m
British Airways
Deal found 24/6£693
Wed 12/812:33
ONT
-
GLA
2 stops19h 02m
British Airways
Mon 24/819:35
GLA
-
ONT
2 stops35h 24m
British Airways
Deal found 25/6£708
Sun 6/906:00
ONT
-
GLA
2 stops20h 10m
United Airlines
Tue 6/1014:00
GLA
-
ONT
2 stops39h 59m
United Airlines
Deal found 24/6£716
Sat 12/1210:47
ONT
-
GLA
2 stops22h 23m
British Airways
Sun 20/1206:35
GLA
-
ONT
2 stops25h 11m
British Airways
Deal found 28/6£732
Tue 11/807:00
ONT
-
GLA
2 stops19h 10m
United Airlines
Tue 18/814:00
GLA
-
ONT
2 stops30h 50m
United Airlines
Deal found 27/6£744
Wed 12/809:01
ONT
-
GLA
2 stops17h 09m
United Airlines
Wed 19/814:00
GLA
-
ONT
2 stops30h 50m
United Airlines
Deal found 28/6£756
Thu 15/1013:31
ONT
-
GLA
2 stops21h 19m
British Airways
Sun 18/1021:20
GLA
-
ONT
2 stops29h 37m
British Airways
Deal found 25/6£757
Sun 16/816:07
ONT
-
GLA
2 stops19h 28m
British Airways
Sun 23/807:35
GLA
-
ONT
2 stops23h 24m
British Airways
Deal found 26/6£759
Mon 21/913:05
ONT
-
GLA
2 stops21h 35m
British Airways
Mon 28/915:35
GLA
-
ONT
2 stops34h 42m
British Airways
Deal found 26/6£760
Mon 17/812:59
ONT
-
GLA
2 stops22h 41m
British Airways
Sun 23/806:00
GLA
-
ONT
2 stops44h 15m
British Airways
Deal found 26/6£764

Find flight deals from Ontario to Glasgow Intl

Discover tips and strategies to find the most affordable flight options for your journey from Ontario (ONT) to Glasgow Intl (GLA). 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 29 June 2026.

Round-trip from

£632

One-way from

£239

Popular in

June

Cheapest in

January

Average price

£1,029
British Airways
  • British Airways
  • 11/11-18/11
  • 4 total stops
  • 35h 34m total
  • Ontario to Glasgow
Search Deals
British Airways
  • British Airways
  • 1/12
  • 2 total stops
  • 21h 51m total
  • Ontario to Glasgow
Search Deals
Highest demand for flights based on searches. 21% potential increase in price (£144 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (£24 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 Ontario to Glasgow Intl 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 29 June 2026.
Use the filters below to find and compare flights from Ontario to Glasgow Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

OntarioGlasgow

ONT - GLA

ONTGLA

Ontario

Sun 6/9

06:00-10:10

2 stops20h 10m

Glasgow Intl

Tue 6/10

14:00-21:59

2 stops39h 59m

£716

OntarioGlasgow

ONT - GLA

ONTGLA

Ontario

Sat 12/12

10:47-17:10

2 stops22h 23m

Glasgow Intl

Sun 20/12

06:35-23:46

2 stops25h 11m

£732

OntarioGlasgow

ONT - GLA

ONTGLA

Ontario

Tue 11/8

07:00-10:10

2 stops19h 10m

Glasgow Intl

Tue 18/8

14:00-12:50

2 stops30h 50m

£744

OntarioGlasgow

ONT - GLA

ONTGLA

Ontario

Thu 15/10

13:31-18:50

2 stops21h 19m

Glasgow Intl

Sun 18/10

21:20-18:57

2 stops29h 37m

£757

OntarioGlasgow

ONT - GLA

ONTGLA

Ontario

Sun 16/8

16:07-19:35

2 stops19h 28m

Glasgow Intl

Sun 23/8

07:35-22:59

2 stops23h 24m

£759

OntarioGlasgow

ONT - GLA

ONTGLA

Ontario

Mon 21/9

13:05-18:40

2 stops21h 35m

Glasgow Intl

Mon 28/9

15:35-18:17

2 stops34h 42m

£760

OntarioGlasgow

ONT - GLA

ONTGLA

Ontario

Mon 17/8

12:59-19:40

2 stops22h 41m

Glasgow Intl

Sun 23/8

07:35-19:15

2 stops19h 40m

£798
Fastest return journey

OntarioGlasgow

ONT - GLA

ONTGLA

Ontario

Mon 10/8

12:25-13:25

2 stops17h 00m

Glasgow Intl

Mon 24/8

14:20-22:10

2 stops15h 50m

£829

OntarioGlasgow

ONT - GLA

ONTGLA

Ontario

Fri 21/8

12:59-22:15

2 stops25h 16m

Glasgow Intl

Sun 13/9

06:00-22:43

2 stops24h 43m

£837

OntarioGlasgow

ONT - GLA

ONTGLA

Ontario

Wed 23/9

12:12-13:25

2 stops17h 13m

Glasgow Intl

Wed 30/9

14:20-22:00

2 stops15h 40m

£894

Flights are sorted by cheapest return flights first.

Deals found on 26/6

Showing 1-10 of 22 resultsSorted by cheapest first
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Best time to book a flight from Ontario to Glasgow Intl

Have a flexible travel schedule? Discover the best time to fly to Glasgow Intl from Ontario 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 Ontario to Glasgow Intl. 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 from for flights from Ontario to Glasgow Intl?

    Ontario (ONT), located 3.1 mi from the city center, is the airport you fly out of when you book flights from Ontario to Glasgow Intl. 0 airlines have flights from Ontario to Glasgow Intl on a regular basis. Booking flights from Ontario to Glasgow Intl should not be difficult; the airport handles an average of 0 outbound flights to Glasgow Intl per day.

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

    There are many flights that can get you from Ontario to Glasgow Intl Airport in 20h 10m. Fly via United Airlines or British Airways to get the fastest option. The distance from Ontario to Glasgow Intl Airport is about 5088 mi. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Ontario to Glasgow Intl 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

Travelling to a place near Glasgow Intl Airport?

Book flights to Glasgow Intl Airport if you plan to visit one of these locations
Paisley
Kilmarnock
Dunoon
Arrochar
Dumbarton
Clydebank
East Kilbride
Helensburgh
Largs
Renfrew
Inveraray
Rothesay
Alexandria
Balloch

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

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

Millions of users choose and trust Cheapflights to book the best flight deals from Ontario to Glasgow Intl for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

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

Need flexible booking options for your flight to Glasgow Intl from Ontario? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

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

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

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