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Glasgow Intl

$499+ Cheap flights from Ontario (ONT) to Glasgow Intl (GLA)

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 5/3. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — GLA
Feb 25 — Mar 41
Wed 2/25
Wed 3/4
1 adult, Economy
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Cheap 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 January 26, 2026.

This oojo deal was found by Cheapflights users on 1/24. 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.
Sun 4/1212:19 pm
ONT
-
GLA
2 stops22h 26m
British Airways
Sun 4/196:00 am
GLA
-
ONT
2 stops23h 59m
British Airways
Deal found 1/24$674
This oojo deal was found by Cheapflights users on 1/25. 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.
Sun 9/610:50 am
ONT
-
GLA
2 stops22h 00m
British Airways
Wed 9/167:40 pm
GLA
-
ONT
2 stops54h 08m
British Airways
Deal found 1/25$678
This oojo deal was found by Cheapflights users on 1/25. 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 4/312:22 pm
ONT
-
GLA
2 stops23h 53m
British Airways
Sun 4/126:00 am
GLA
-
ONT
2 stops23h 59m
British Airways
Deal found 1/25$724
This oojo deal was found by Cheapflights users on 1/24. 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.
Thu 3/262:39 pm
ONT
-
GLA
2 stops19h 01m
British Airways
Mon 4/2012:15 pm
GLA
-
ONT
2 stops17h 44m
British Airways
Deal found 1/24$736
This oojo deal was found by Cheapflights users on 1/24. 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.
Sun 4/1912:19 pm
ONT
-
GLA
2 stops22h 26m
British Airways
Wed 4/296:25 am
GLA
-
ONT
2 stops17h 57m
British Airways
Deal found 1/24$784
This oojo deal was found by Cheapflights users on 1/25. 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.
Sat 9/54:54 pm
ONT
-
GLA
2 stops17h 36m
British Airways
Mon 9/145:50 am
GLA
-
ONT
2 stops19h 58m
British Airways
Deal found 1/25$816
This FlightHub deal was found by Cheapflights users on 1/26. 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.
Mon 5/117:30 am
ONT
-
GLA
2 stops23h 20m
British Airways
Tue 8/117:30 pm
GLA
-
ONT
2 stops30h 55m
British Airways
Deal found 1/26$839
This oojo deal was found by Cheapflights users on 1/25. 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.
Wed 2/43:09 pm
ONT
-
GLA
2 stops17h 16m
British Airways
Wed 2/1111:40 am
GLA
-
ONT
2 stops19h 08m
British Airways
Deal found 1/25$842
This oojo deal was found by Cheapflights users on 1/25. 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 7/311:10 pm
ONT
-
GLA
2 stops23h 05m
British Airways
Sun 8/167:35 am
GLA
-
ONT
2 stops18h 42m
British Airways
Deal found 1/25$852
This oojo deal was found by Cheapflights users on 1/24. 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.
Wed 1/284:45 pm
ONT
-
GLA
2 stops15h 40m
British Airways
Wed 4/11:20 pm
GLA
-
ONT
2 stops18h 39m
British Airways
Deal found 1/24$943
This United Airlines deal was found by Cheapflights users on 1/26. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/116:59 pm
ONT
-
GLA
3 stops31h 11m
United Airlines
Tue 8/112:00 pm
GLA
-
ONT
2 stops39h 21m
United Airlines
Deal found 1/26$959

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 January 26, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$674
(oojo)

One-way from

$499
(Cheapflightsfares)

Popular in

June

Cheapest in

October

Average price

$656
Provider with most accurate pricing for Ontario-Glasgow Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Ontario-Glasgow Intl flights.
Search Deals
From Ontario to Glasgow Intl
Search Deals
One-way flight from Ontario to Glasgow Intl
Search Deals
Highest demand for flights based on searches. 22% potential increase in price ($225 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease ($46 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

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 January 26, 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

Sun 4/12

12:19 pm-6:45 pm

2 stops22h 26m

Glasgow Intl

Sun 4/19

6:00 am-9:59 pm

2 stops23h 59m

$674

OntarioGlasgow

ONT - GLA

ONTGLA

Ontario

Fri 4/3

12:22 pm-8:15 pm

2 stops23h 53m

Glasgow Intl

Sun 4/12

6:00 am-9:59 pm

2 stops23h 59m

$724

OntarioGlasgow

ONT - GLA

ONTGLA

Ontario

Thu 3/26

2:39 pm-4:40 pm

2 stops19h 01m

Glasgow Intl

Mon 4/20

12:15 pm-9:59 pm

2 stops17h 44m

$736

OntarioGlasgow

ONT - GLA

ONTGLA

Ontario

Sun 4/19

12:19 pm-6:45 pm

2 stops22h 26m

Glasgow Intl

Wed 4/29

6:25 am-4:22 pm

2 stops17h 57m

$784

OntarioGlasgow

ONT - GLA

ONTGLA

Ontario

Mon 5/11

7:30 am-2:50 pm

2 stops23h 20m

Glasgow Intl

Tue 8/11

7:30 pm-6:25 pm

2 stops30h 55m

$839

OntarioGlasgow

ONT - GLA

ONTGLA

Ontario

Mon 5/11

6:59 pm-10:10 am

3 stops31h 11m

Glasgow Intl

Tue 8/11

2:00 pm-9:21 pm

2 stops39h 21m

$959

OntarioGlasgow

ONT - GLA

ONTGLA

Ontario

Fri 5/8

4:52 pm-6:55 pm

2 stops18h 03m

Glasgow Intl

Sat 5/23

7:45 pm-9:51 pm

2 stops34h 06m

$974

OntarioGlasgow

ONT - GLA

ONTGLA

Ontario

Tue 7/14

1:10 pm-6:40 pm

2 stops21h 30m

Glasgow Intl

Tue 7/21

7:00 am-7:52 pm

2 stops20h 52m

$976

OntarioGlasgow

ONT - GLA

ONTGLA

Ontario

Mon 2/23

2:39 pm-4:35 pm

2 stops17h 56m

Glasgow Intl

Thu 2/26

11:30 am-10:07 pm

2 stops18h 37m

$1,002

OntarioGlasgow

ONT - GLA

ONTGLA

Ontario

Tue 7/14

6:02 am-10:10 am

2 stops20h 08m

Glasgow Intl

Tue 7/21

2:00 pm-9:21 pm

3 stops39h 21m

$1,098

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/26

Showing 1-10 of 19 results
1
2

Compare providers for flights from Ontario to Glasgow Intl

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Ontario to Glasgow Intl in January.
ProviderPrice AccuracyTrust Score*
OvagoPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Ontario-Glasgow Intl Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Ontario-Glasgow Intl Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Ontario-Glasgow Intl Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Ontario-Glasgow Intl Airport flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Ontario-Glasgow Intl Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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, August is the cheapest month in which you can book a flight from Ontario to Glasgow Intl Airport (average of $559). Flying from Ontario to Glasgow Intl Airport in June is currently the most expensive (average of $977). 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 January 26, 2026.
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
7,700 reviews

Comfort

6.8

Boarding

6.9

Overall

6.7

Entertainment

6.4

Crew

7.6

Food

6.4

Reviews

1 / 20
8.0
Excellent

Lakshmi,Dec 2025

SFO - LHR

I had a great time on the flight with good entertainment and food. The staff was awesome. The only thing was there was a delay in boarding and takeoff from London. However, I was pleasantly surprised when the airline sent an apology for the few later landing in Mumbai. They did not have WiFi on board on the leg from London to Mumbai but that was okay for me. On the first leg from SF to London, a couple of seats ahead of me had issues with their display so they could not watch anything on their screens although the stewardess gas be them an option to use the WiFi on their devices. This did not affect me, however, so that was cool. I would recommend British Airways. This was my first time flying with them and I had a lovely flight.
British Airways
6.7
Okay
7,700 reviews
British Airways
6.7
Okay
7,700 reviews

Comfort

6.8

Boarding

6.9

Overall

6.7

Entertainment

6.4

Crew

7.6

Food

6.4

Reviews

1 / 20
8.0
Excellent

Lakshmi,Dec 2025

SFO - LHR

I had a great time on the flight with good entertainment and food. The staff was awesome. The only thing was there was a delay in boarding and takeoff from London. However, I was pleasantly surprised when the airline sent an apology for the few later landing in Mumbai. They did not have WiFi on board on the leg from London to Mumbai but that was okay for me. On the first leg from SF to London, a couple of seats ahead of me had issues with their display so they could not watch anything on their screens although the stewardess gas be them an option to use the WiFi on their devices. This did not affect me, however, so that was cool. I would recommend British Airways. This was my first time flying with them and I had a lovely flight.

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 22h 26m. Fly via British Airways to get the fastest option. Airlines will cover a distance of 5088 mi.

  • 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 $664.

  • 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, August is the cheapest month in which you can book a flight from Ontario to Glasgow Intl Airport (average of $559). Flying from Ontario to Glasgow Intl Airport in June is currently the most expensive (average of $977). 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.

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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 January 26, 2026.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$664Average$900FlexibilityNo cancel feeOn-time70%

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