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Cheap flights from Ontario to Glasgow Intl Airport from £368

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 3/11. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — GLA
1 Nov — 8 Nov1
1 adult
1 adult, Economy

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 2 October 2025.

Round-trip from

£494

One-way from

£368

Popular in

June

Cheapest in

January

Average price

£491
American Airlines
  • American Airlines
  • 16/11-27/11
  • 4 total stops
  • 53h 03m total
  • Ontario to Glasgow
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British Airways
  • British Airways
  • 3/11
  • 2 total stops
  • 15h 48m total
  • Ontario to Glasgow
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Highest demand for flights based on searches. 21% potential increase in price (£125 potential increase over avg. return price).
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Cheapest flight prices on average. 4% potential price decrease (£21 potential savings vs. average return price).
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Average for round-trip flights in October 2025
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Find 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 2 October 2025.

Sun 16/1114:53ONT - GLA
2 stops18h 42mAmerican Airlines
Thu 27/1106:35GLA - ONT
2 stops34h 21mAmerican Airlines
Deal found 30/9£494
Fri 14/1112:46ONT - GLA
2 stops16h 19mAmerican Airlines
Fri 21/1112:45GLA - ONT
2 stops19h 12mAmerican Airlines
Deal found 30/9£527
Wed 22/1016:35ONT - GLA
2 stops15h 35mKLM
Wed 29/1006:05GLA - ONT
2 stops18h 05mKLM
Deal found 30/9£624
Wed 15/1016:35ONT - GLA
2 stops15h 35mKLM
Tue 21/1006:00GLA - ONT
2 stops17h 53mKLM
Deal found 1/10£661
Sun 14/1212:46ONT - GLA
2 stops17h 49mAmerican Airlines
Mon 22/1212:45GLA - ONT
2 stops19h 01mAmerican Airlines
Deal found 1/10£706
Sun 14/1216:47ONT - GLA
2 stops19h 38mBritish Airways
Thu 25/1206:35GLA - ONT
2 stops22h 23mBritish Airways
Deal found 1/10£707
Sun 16/1105:05ONT - GLA
3 stops30h 35mMultiple Airlines
Thu 27/1120:10GLA - ONT
3 stops32h 34mMultiple Airlines
Deal found 30/9£729
Wed 17/1206:00ONT - GLA
2 stops26h 35mDelta
Tue 23/1209:05GLA - ONT
2 stops45h 28mDelta
Deal found 1/10£740
Wed 22/1016:35ONT - GLA
2 stops15h 35mKLM
Tue 28/1006:05GLA - ONT
2 stops18h 05mKLM
Deal found 30/9£750
Wed 17/1216:47ONT - GLA
2 stops18h 38mBritish Airways
Wed 24/1208:40GLA - ONT
2 stops37h 12mBritish Airways
Deal found 1/10£752
Wed 1/1013:15ONT - GLA
2 stops25h 55mKLM
Fri 17/1006:00GLA - ONT
2 stops25h 39mKLM
Deal found 30/9£755
Sun 14/1212:46ONT - GLA
2 stops16h 29mAmerican Airlines
Fri 26/1212:45GLA - ONT
2 stops19h 01mAmerican Airlines
Deal found 1/10£773

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 2 October 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

Sun 16/11

14:53-17:35

2 stops18h 42m

Glasgow Intl

Thu 27/11

06:35-08:56

2 stops34h 21m

£494

OntarioGlasgow

ONT - GLA

ONTGLA

Ontario

Fri 20/2

17:03-18:00

2 stops16h 57m

Glasgow Intl

Sun 1/3

06:35-21:40

2 stops23h 05m

£540

OntarioGlasgow

ONT - GLA

ONTGLA

Ontario

Wed 22/10

16:35-16:10

2 stops15h 35m

Glasgow Intl

Wed 29/10

06:05-17:10

2 stops18h 05m

£624

OntarioGlasgow

ONT - GLA

ONTGLA

Ontario

Sun 14/12

12:46-14:35

2 stops17h 49m

Glasgow Intl

Wed 24/12

12:45-09:38

2 stops28h 53m

£706

OntarioGlasgow

ONT - GLA

ONTGLA

Ontario

Sun 14/12

12:46-14:35

2 stops17h 49m

Glasgow Intl

Sun 21/12

12:50-23:46

2 stops18h 56m

£706

OntarioGlasgow

ONT - GLA

ONTGLA

Ontario

Sun 14/12

16:47-20:25

2 stops19h 38m

Glasgow Intl

Thu 25/12

06:35-20:58

2 stops22h 23m

£707

OntarioGlasgow

ONT - GLA

ONTGLA

Ontario

Fri 27/3

17:02-18:00

2 stops17h 58m

Glasgow Intl

Tue 31/3

08:45-22:02

2 stops21h 17m

£713

OntarioGlasgow

ONT - GLA

ONTGLA

Ontario

Sun 16/11

05:05-19:40

3 stops30h 35m

Glasgow Intl

Thu 27/11

20:10-20:44

3 stops32h 34m

£729

OntarioGlasgow

ONT - GLA

ONTGLA

Ontario

Wed 17/12

06:00-16:35

2 stops26h 35m

Glasgow Intl

Wed 24/12

09:05-22:33

2 stops45h 28m

£740

OntarioGlasgow

ONT - GLA

ONTGLA

Ontario

Wed 17/12

06:00-16:35

2 stops26h 35m

Glasgow Intl

Tue 23/12

09:05-22:33

2 stops45h 28m

£740

Flights are sorted by cheapest return flights first.

Deals found on 30/9

Showing 1-10 of 16 results
1
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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.

  • 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 15h 35m. Fly via American Airlines, British Airways, or KLM 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, 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
Kilmarnock
Dumbarton
Clydebank
East Kilbride
Arrochar
Inveraray
Rothesay
Ballachulish
Alexandria
Tarbert
Balloch

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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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