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Cheap flights from Ontario to Glasgow Intl Airport from £256

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 6/4. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — GLA
17 Mar — 24 Mar1
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 15 February 2026.

Wed 1/406:00
ONT
-
GLA
2 stops26h 10m
Multiple Airlines
Wed 8/406:00
GLA
-
ONT
2 stops24h 34m
Multiple Airlines
Deal found 15/2£491
Mon 3/814:22
ONT
-
GLA
2 stops20h 18m
British Airways
Tue 25/805:55
GLA
-
ONT
2 stops18h 29m
British Airways
Deal found 13/2£495
Tue 3/307:30
ONT
-
GLA
2 stops21h 15m
Delta
Fri 13/306:05
GLA
-
ONT
2 stops18h 07m
Delta
Deal found 13/2£504
Sun 23/816:54
ONT
-
GLA
2 stops17h 51m
British Airways
Fri 4/907:40
GLA
-
ONT
2 stops22h 34m
British Airways
Deal found 12/2£515
Sun 29/312:22
ONT
-
GLA
2 stops18h 18m
American Airlines
Sun 5/410:10
GLA
-
ONT
2 stops21h 49m
American Airlines
Deal found 13/2£542
Sat 25/414:08
ONT
-
GLA
2 stops20h 22m
American Airlines
Sat 2/513:25
GLA
-
ONT
2 stops18h 21m
American Airlines
Deal found 11/2£543
Sun 1/314:39
ONT
-
GLA
2 stops20h 46m
British Airways
Tue 10/306:25
GLA
-
ONT
2 stops19h 17m
British Airways
Deal found 13/2£546
Sun 19/416:52
ONT
-
GLA
2 stops17h 53m
British Airways
Sun 26/406:00
GLA
-
ONT
2 stops23h 59m
British Airways
Deal found 12/2£551
Tue 1/910:50
ONT
-
GLA
2 stops19h 50m
British Airways
Tue 8/907:00
GLA
-
ONT
2 stops19h 17m
British Airways
Deal found 11/2£563
Mon 2/323:58
ONT
-
GLA
2 stops25h 52m
British Airways
Sun 8/306:35
GLA
-
ONT
2 stops19h 07m
British Airways
Deal found 13/2£575
Sun 30/812:47
ONT
-
GLA
2 stops17h 53m
British Airways
Wed 9/907:55
GLA
-
ONT
2 stops41h 53m
British Airways
Deal found 12/2£584
Sat 28/317:02
ONT
-
GLA
2 stops18h 33m
British Airways
Sat 4/419:45
GLA
-
ONT
2 stops28h 37m
British Airways
Deal found 12/2£600

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 15 February 2026.

Round-trip from

£491

One-way from

£256

Popular in

June

Cheapest in

January

Average price

£621
KLM
  • KLM
  • 1/4-8/4
  • 4 total stops
  • 50h 44m total
  • Ontario to Glasgow
Search Deals
6/4
  • 6/4
  • 2 total stops
  • 23h 05m total
  • Ontario to Glasgow
Search Deals
Highest demand for flights based on searches. 18% potential increase in price (£92 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (£19 potential savings vs. average return price).
Search Deals
Average for round-trip flights in February 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 15 February 2026.
Use the filters below to find and compare flights from Ontario to Glasgow Intl Airport that are best for you.

Fly from

Ontario

Fly to

Glasgow Intl

Route

Depart

Return

Price

OntarioGlasgow

ONT - GLA

ONTGLA

Ontario

Wed 1/4

06:00-16:10

2 stops26h 10m

Glasgow Intl

Wed 8/4

06:00-22:34

2 stops24h 34m

£491

OntarioGlasgow

ONT - GLA

ONTGLA

Ontario

Mon 3/8

14:22-18:40

2 stops20h 18m

Glasgow Intl

Tue 25/8

05:55-16:24

2 stops18h 29m

£495

OntarioGlasgow

ONT - GLA

ONTGLA

Ontario

Tue 3/3

07:30-12:45

2 stops21h 15m

Glasgow Intl

Fri 13/3

06:05-17:12

2 stops18h 07m

£504

OntarioGlasgow

ONT - GLA

ONTGLA

Ontario

Sun 29/3

12:22-14:40

2 stops18h 18m

Glasgow Intl

Sun 5/4

10:10-23:59

2 stops21h 49m

£542

OntarioGlasgow

ONT - GLA

ONTGLA

Ontario

Sat 25/4

14:08-18:30

2 stops20h 22m

Glasgow Intl

Sat 2/5

13:25-23:46

2 stops18h 21m

£543

OntarioGlasgow

ONT - GLA

ONTGLA

Ontario

Sun 19/4

16:52-18:45

2 stops17h 53m

Glasgow Intl

Sun 26/4

06:00-21:59

2 stops23h 59m

£551

OntarioGlasgow

ONT - GLA

ONTGLA

Ontario

Mon 2/3

23:58-09:50

2 stops25h 52m

Glasgow Intl

Sun 8/3

06:35-17:42

2 stops19h 07m

£575

OntarioGlasgow

ONT - GLA

ONTGLA

Ontario

Sun 26/4

12:19-18:45

2 stops22h 26m

Glasgow Intl

Sat 2/5

19:45-21:59

2 stops34h 14m

£630

OntarioGlasgow

ONT - GLA

ONTGLA

Ontario

Sat 25/4

10:59-14:50

2 stops19h 51m

Glasgow Intl

Sat 2/5

19:45-21:59

2 stops34h 14m

£630

OntarioGlasgow

ONT - GLA

ONTGLA

Ontario

Wed 27/5

13:35-16:10

2 stops18h 35m

Glasgow Intl

Tue 9/6

06:00-17:16

2 stops19h 16m

£653

Flights are sorted by cheapest return flights first.

Deals found on 14/2

Showing 1-10 of 22 results
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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.

Cheapflights Insights

Everything you need to know about your flight from Ontario to Glasgow Intl Airport

What is the cheapest month to book a flight from Ontario to Glasgow Intl Airport?

Currently, January is the cheapest month in which you can book a flight from Ontario to Glasgow Intl Airport (average of £399). Flying from Ontario to Glasgow Intl Airport in June is currently the most expensive (average of £688). 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.

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 18h 18m. Fly via British Airways, Delta, or American Airlines 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.

  • What is the cheapest month to book a flight from Ontario to Glasgow Intl Airport?

    Currently, January is the cheapest month in which you can book a flight from Ontario to Glasgow Intl Airport (average of £399). Flying from Ontario to Glasgow Intl Airport in June is currently the most expensive (average of £688). 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

Travelling to a place near Glasgow Intl Airport?

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

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

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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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