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Cheap flights from Ontario to Glasgow Intl Airport from £386

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 17/8. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — GLA
5 May — 12 May1
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 30 April 2025.

Round-trip from

£568

One-way from

£386

Popular in

June

Cheapest in

January

Average price

£540
British Airways
  • British Airways
  • 13/8-18/8
  • 4 total stops
  • 45h 02m total
  • Ontario to Glasgow
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Iberia
  • Iberia
  • 17/8
  • 2 total stops
  • 24h 16m total
  • Ontario to Glasgow
Search Deals
Highest demand for flights based on searches. 21% potential increase in price (£124 potential increase over avg. return price).
Search Deals
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 April 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 30 April 2025.

Wed 13/816:54ONT - GLA
2 stops17h 46mBritish Airways
Mon 18/820:50GLA - ONT
2 stops27h 16mBritish Airways
Deal found 29/4£568
Sun 4/506:00ONT - GLA
2 stops26h 10mDelta
Wed 14/506:00GLA - ONT
2 stops20h 20mDelta
Deal found 28/4£628
Mon 5/516:35ONT - GLA
2 stops15h 50mAmerican Airlines
Mon 19/511:35GLA - ONT
2 stops18h 22mAmerican Airlines
Deal found 28/4£803

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 30 April 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

Wed 13/8

16:54-18:40

2 stops17h 46m

Glasgow Intl

Mon 18/8

20:50-16:06

2 stops27h 16m

£568

OntarioGlasgow

ONT - GLA

ONTGLA

Ontario

Sun 17/8

14:59-23:15

2 stops24h 16m

£386

OntarioGlasgow

ONT - GLA

ONTGLA

Ontario

Sun 17/8

10:50-14:40

2 stops19h 50m

£409

OntarioGlasgow

ONT - GLA

ONTGLA

Ontario

Wed 18/6

17:08-16:10

2 stops15h 02m

£609

Flights are sorted by cheapest return flights first.

Deals found on 29/4

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.

Rainfall in Glasgow Intl by month

Plan your trip to Glasgow Intl by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Glasgow Intl Airport ranges from 33.0 - 112.0 inches per month. January is typically the wettest month, when rainfall can reach 112.0 mm. May is typically the driest time to visit Glasgow Intl Airport when rainfall is around 33.0 mm.

Temperature in Glasgow Intl by month

Plan your trip to Glasgow Intl by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Glasgow Intl Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 16.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 4.0 C).

Reviews of airlines servicing Glasgow Intl

Get insights into the airlines that provide service to Glasgow Intl. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Glasgow Intl. Reviews last updated 30 April 2025.
KLM
7.8
Good
1,333 reviews
Check prices

Overall

7.8

Food

7.2

Entertainment

7.1

Crew

8.4

Boarding

7.8

Comfort

7.7

Reviews

1 / 20
8.0
Excellent

Anonymous,Mar 2025

LBA - AMS

Overall, the flight from Leeds Bradford to Amsterdam was at expected. The crew were efficient at boarding and professional on board. The only issue was extremely slow check in at Leeds Bradford which was very frustrating.
KLM
7.8
Good
1,333 reviews
KLM
7.8
Good
1,333 reviews
Check prices

Overall

7.8

Food

7.2

Entertainment

7.1

Crew

8.4

Boarding

7.8

Comfort

7.7

Reviews

1 / 20
8.0
Excellent

Anonymous,Mar 2025

LBA - AMS

Overall, the flight from Leeds Bradford to Amsterdam was at expected. The crew were efficient at boarding and professional on board. The only issue was extremely slow check in at Leeds Bradford which was very frustrating.
Iberia
7.0
Good
2,696 reviews
KLM
7.8
Good
1,333 reviews
Check prices

Overall

7.8

Food

7.2

Entertainment

7.1

Crew

8.4

Boarding

7.8

Comfort

7.7

Reviews

1 / 20
8.0
Excellent

Anonymous,Mar 2025

LBA - AMS

Overall, the flight from Leeds Bradford to Amsterdam was at expected. The crew were efficient at boarding and professional on board. The only issue was extremely slow check in at Leeds Bradford which was very frustrating.
British Airways
6.6
Okay
6,837 reviews
KLM
7.8
Good
1,333 reviews
Check prices

Overall

7.8

Food

7.2

Entertainment

7.1

Crew

8.4

Boarding

7.8

Comfort

7.7

Reviews

1 / 20
8.0
Excellent

Anonymous,Mar 2025

LBA - AMS

Overall, the flight from Leeds Bradford to Amsterdam was at expected. The crew were efficient at boarding and professional on board. The only issue was extremely slow check in at Leeds Bradford which was very frustrating.

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.

  • What is the cheapest airline to fly from Ontario to Glasgow Intl Airport round-trip?

    Currently priced at £568, British Airways will fly you from Ontario to Glasgow Intl Airport and back. In addition to British Airways, many other airlines offer competitively priced options for your trip.

  • What are the cheapest airlines to fly from Ontario to Glasgow Intl Airport one-way?

    For one-way options, check prices for Iberia. According to our data, you can fly for as low as £386. Users have also found prices from £409 and £609 on British Airways and KLM, respectively.

  • 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 Ontario?

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

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