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Cheap flights from Ontario to Glasgow Intl Airport from £302

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 15/10. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — GLA
20 Aug — 27 Aug1
1 adult

Cheap 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 August 2025.

Round-trip from

£653

One-way from

£302

Popular in

June

Cheapest in

November

Average price

£563
British Airways
  • British Airways
  • 22/9-10/10
  • 4 total stops
  • 48h 01m total
  • Ontario to Glasgow
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British Airways
  • British Airways
  • 15/10
  • 2 total stops
  • 19h 10m total
  • Ontario to Glasgow
Search Deals
Highest demand for flights based on searches. 20% potential increase in price (£115 potential increase over avg. return price).
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Cheapest flight prices on average. 4% potential price decrease (£20 potential savings vs. average return price).
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Average for round-trip flights in August 2025
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Find flight deals from Ontario to Glasgow Intl

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 August 2025.

Mon 22/914:54ONT - GLA
2 stops17h 51mBritish Airways
Fri 10/1020:25GLA - ONT
2 stops30h 10mBritish Airways
Deal found 14/8£653
Sat 13/914:54ONT - GLA
2 stops20h 46mBritish Airways
Tue 7/1021:20GLA - ONT
2 stops29h 15mBritish Airways
Deal found 14/8£667
Thu 28/810:50ONT - GLA
2 stops18h 45mBritish Airways
Sun 7/910:05GLA - ONT
2 stops19h 43mBritish Airways
Deal found 12/8£914
Fri 21/1112:53ONT - GLA
2 stops21h 07mMultiple Airlines
Fri 28/1106:35GLA - ONT
2 stops17h 07mMultiple Airlines
Deal found 12/8£1,079
Fri 21/1110:50ONT - GLA
2 stops15h 05mMultiple Airlines
Sat 29/1112:35GLA - ONT
2 stops18h 20mMultiple Airlines
Deal found 14/8£1,509
Mon 18/812:22ONT - GLA
2 stops20h 23mBritish Airways
Mon 25/820:50GLA - ONT
2 stops29h 34mBritish Airways
Deal found 14/8£6,527

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 August 2025.
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

Mon 22/9

14:54-16:45

2 stops17h 51m

Glasgow Intl

Fri 10/10

20:25-18:35

2 stops30h 10m

£653

OntarioGlasgow

ONT - GLA

ONTGLA

Ontario

Sat 13/9

14:54-19:40

2 stops20h 46m

Glasgow Intl

Tue 7/10

21:20-18:35

2 stops29h 15m

£667

OntarioGlasgow

ONT - GLA

ONTGLA

Ontario

Tue 27/1

08:43-09:50

2 stops17h 07m

Glasgow Intl

Fri 6/2

11:40-22:02

2 stops18h 22m

£670

OntarioGlasgow

ONT - GLA

ONTGLA

Ontario

Thu 28/8

10:50-13:35

2 stops18h 45m

Glasgow Intl

Sun 7/9

10:05-21:48

2 stops19h 43m

£914

OntarioGlasgow

ONT - GLA

ONTGLA

Ontario

Fri 21/11

12:53-18:00

2 stops21h 07m

Glasgow Intl

Fri 28/11

06:35-15:42

2 stops17h 07m

£1,079

OntarioGlasgow

ONT - GLA

ONTGLA

Ontario

Fri 21/11

10:50-09:55

2 stops15h 05m

Glasgow Intl

Sat 29/11

12:35-22:55

2 stops18h 20m

£1,509

OntarioGlasgow

ONT - GLA

ONTGLA

Ontario

Wed 15/10

08:15-11:25

2 stops19h 10m

£302

OntarioGlasgow

ONT - GLA

ONTGLA

Ontario

Sat 13/9

06:10-09:20

2 stops19h 10m

£365

OntarioGlasgow

ONT - GLA

ONTGLA

Ontario

Sun 14/9

08:15-09:20

2 stops17h 05m

£401

OntarioGlasgow

ONT - GLA

ONTGLA

Ontario

Sun 31/8

10:50-13:15

2 stops18h 25m

£412

Flights are sorted by cheapest return flights first.

Deals found on 13/8

Showing 1-10 of 16 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, April is the cheapest month in which you can book a flight from Ontario to Glasgow Intl Airport (average of £97). Flying from Ontario to Glasgow Intl Airport in July is currently the most expensive (average of £119). 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.

  • 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, April is the cheapest month in which you can book a flight from Ontario to Glasgow Intl Airport (average of £97). Flying from Ontario to Glasgow Intl Airport in July is currently the most expensive (average of £119). 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
Largs
Renfrew
East Kilbride
Kilmarnock
Dumbarton
Clydebank
Arrochar
Inveraray
Rothesay
Ballachulish
Alexandria
Tarbert
Balloch

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Cheapflights makes it easy to find Ontario to Glasgow Intl 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 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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