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Glasgow Intl

$581+ Cheap flights from Ontario (ONT) to Glasgow Intl (GLA)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 3/3. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — GLA
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
1 adult, Economy
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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 September 11, 2025.

Round-trip from

$581
(oojo)

Popular in

June

Cheapest in

January

Average price

$749
From Ontario to Glasgow Intl
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Highest demand for flights based on searches. 20% potential increase in price ($217 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($36 potential savings vs. average RT price).
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Average for round-trip flights in September 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 September 11, 2025.

This oojo deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/308:15 amONT - GLA
2 stops17h 25mBritish Airways
Mon 10/65:50 amGLA - ONT
2 stops21h 09mBritish Airways
Deal found 9/10$849
This oojo deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/62:51 pmONT - GLA
2 stops17h 34mBritish Airways
Thu 10/167:00 amGLA - ONT
2 stops22h 49mBritish Airways
Deal found 9/10$980
This Icelandair deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/810:45 amONT - GLA
2 stops15h 10mMultiple Airlines
Wed 11/1212:35 pmGLA - ONT
2 stops17h 30mMultiple Airlines
Deal found 9/11$1,009
This FlightHub deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/146:10 amONT - GLA
2 stops19h 10mBritish Airways
Tue 9/167:00 amGLA - ONT
2 stops19h 54mBritish Airways
Deal found 9/10$1,012
This Icelandair deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/1010:59 amONT - GLA
2 stops14h 56mMultiple Airlines
Fri 11/1412:35 pmGLA - ONT
2 stops19h 21mMultiple Airlines
Deal found 9/11$1,146
This oojo deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/264:45 pmONT - GLA
2 stops18h 10mBritish Airways
Tue 9/309:20 pmGLA - ONT
2 stops28h 56mBritish Airways
Deal found 9/9$1,285
This Icelandair deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/3110:44 amONT - GLA
2 stops15h 11mMultiple Airlines
Fri 1/912:35 pmGLA - ONT
2 stops18h 02mMultiple Airlines
Deal found 9/11$1,291
This Icelandair deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/203:06 pmONT - GLA
2 stops14h 19mMultiple Airlines
Tue 9/302:20 pmGLA - ONT
2 stops15h 45mMultiple Airlines
Deal found 9/11$4,863

Cheapflights Fare Finder

 
Customize 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 2,558,603 searches. Data last updated September 11, 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

Tue 3/3

3:05 pm-3:50 pm

2 stops16h 45m

Glasgow Intl

Thu 3/12

9:55 am-9:40 pm

2 stops18h 45m

$581

OntarioGlasgow

ONT - GLA

ONTGLA

Ontario

Fri 2/27

6:00 am-10:10 pm

2 stops32h 10m

Glasgow Intl

Tue 3/3

5:20 pm-4:19 pm

2 stops30h 59m

$679

OntarioGlasgow

ONT - GLA

ONTGLA

Ontario

Tue 9/30

8:15 am-9:40 am

2 stops17h 25m

Glasgow Intl

Mon 10/6

5:50 am-6:59 pm

2 stops21h 09m

$849

OntarioGlasgow

ONT - GLA

ONTGLA

Ontario

Mon 10/6

2:51 pm-4:25 pm

2 stops17h 34m

Glasgow Intl

Thu 10/16

7:00 am-9:49 pm

2 stops22h 49m

$980

OntarioGlasgow

ONT - GLA

ONTGLA

Ontario

Sat 11/8

10:45 am-9:55 am

2 stops15h 10m

Glasgow Intl

Wed 11/12

12:35 pm-10:05 pm

2 stops17h 30m

$1,009

OntarioGlasgow

ONT - GLA

ONTGLA

Ontario

Sat 2/21

10:05 am-9:55 am

2 stops15h 50m

Glasgow Intl

Sun 3/1

12:35 pm-10:37 pm

2 stops18h 02m

$1,094

OntarioGlasgow

ONT - GLA

ONTGLA

Ontario

Sat 2/21

10:05 am-9:55 am

2 stops15h 50m

Glasgow Intl

Sat 2/28

12:35 pm-10:37 pm

2 stops18h 02m

$1,095

OntarioGlasgow

ONT - GLA

ONTGLA

Ontario

Fri 2/20

10:05 am-9:55 am

2 stops15h 50m

Glasgow Intl

Sat 2/28

12:35 pm-10:37 pm

2 stops18h 02m

$1,095

OntarioGlasgow

ONT - GLA

ONTGLA

Ontario

Mon 11/10

10:59 am-9:55 am

2 stops14h 56m

Glasgow Intl

Fri 11/14

12:35 pm-11:56 pm

2 stops19h 21m

$1,146

OntarioGlasgow

ONT - GLA

ONTGLA

Ontario

Fri 9/26

4:45 pm-6:55 pm

2 stops18h 10m

Glasgow Intl

Tue 9/30

9:20 pm-6:16 pm

2 stops28h 56m

$1,285

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/11

Showing 1-10 of 16 results
1
2

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 round-trip 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, November is the cheapest month in which you can book a flight from Ontario to Glasgow Intl Airport (average of $664). Flying from Ontario to Glasgow Intl Airport in June is currently the most expensive (average of $1,150). 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.

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 September 11, 2025.
See what other customers who have flown with British Airways from Ontario to Glasgow Intl Airport have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
British Airways
6.7
Okay
7,361 reviews

Overall

6.7

Comfort

6.7

Boarding

6.9

Crew

7.6

Food

6.3

Entertainment

6.4

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2025

IAD - LHR

The plane had to load and unload passengers not through a jet way but out on the tarmac at Heathrow. The steps were steep. We weren't expecting to have to carry our luggage up and down stairs.
British Airways
6.7
Okay
7,361 reviews
British Airways
6.7
Okay
7,361 reviews

Overall

6.7

Comfort

6.7

Boarding

6.9

Crew

7.6

Food

6.3

Entertainment

6.4

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2025

IAD - LHR

The plane had to load and unload passengers not through a jet way but out on the tarmac at Heathrow. The steps were steep. We weren't expecting to have to carry our luggage up and down stairs.

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. 1 airline 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 16h 45m. Fly via British Airways or Virgin Atlantic to get the fastest option. Airlines will cover a distance of 5088 mi. Both multi-stop and nonstop flights can be found to your destination and back.

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

    Flying on British Airways is currently your cheapest option to Glasgow Intl Airport, with prices starting at $660.

  • 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 vacation 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, November is the cheapest month in which you can book a flight from Ontario to Glasgow Intl Airport (average of $664). Flying from Ontario to Glasgow Intl Airport in June is currently the most expensive (average of $1,150). 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

Traveling to a place near Glasgow Intl Airport?

Book flights to Glasgow Intl Airport if you plan to visit one of these locations
Paisley

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Top airline flying from Ontario to Glasgow Intl

Discover the top airline that operate flights from Ontario to Glasgow Intl. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated September 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$660Average$900FlexibilityNo cancel feeOn-time70%

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