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Glasgow Intl

$510+ 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 5/18. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — GLA
ene. 11 — ene. 181
dom. 1/11
dom. 1/18
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 diciembre 12, 2025.

This KLM deal was found by Cheapflights users on 12/11. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 12/1711:41 amONT - GLA
2 stops17h 04mKLM
lun. 12/226:05 amGLA - ONT
2 stops19h 03mKLM
Deal found 12/11$2,742
This oojo deal was found by Cheapflights users on 12/9. 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.
sáb. 12/2712:56 pmONT - GLA
2 stops17h 59mIberia
vie. 1/29:40 amGLA - ONT
2 stops22h 06mIberia
Deal found 12/9$3,002
This Cheapflightsfares deal was found by Cheapflights users on 12/10. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 12/292:42 pmONT - GLA
2 stops17h 53mBritish Airways
lun. 1/56:35 amGLA - ONT
2 stops22h 23mBritish Airways
Deal found 12/10$5,072
This oojo deal was found by Cheapflights users on 12/10. 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.
mié. 12/1712:46 pmONT - GLA
2 stops17h 29mBritish Airways
dom. 12/286:05 pmGLA - ONT
2 stops35h 47mBritish Airways
Deal found 12/10$5,992
This Icelandair deal was found by Cheapflights users on 12/9. 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 Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 12/1611:15 amONT - GLA
2 stops14h 40mMultiple Airlines
sáb. 12/2712:35 pmGLA - ONT
2 stops19h 30mMultiple Airlines
Deal found 12/9$6,009

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 diciembre 12, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

Ovago
2 stars

Round-trip from

$681
(oojo)

One-way from

$510
(oojo)

Popular in

June

Cheapest in

October

Average price

$1,046
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. 19% potential increase in price ($201 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($38 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
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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 diciembre 12, 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

dom. 3/22

5:02 pm-4:40 pm

2 stops16h 38m

Glasgow Intl

sáb. 3/28

6:50 pm-4:22 pm

2 stops28h 32m

$681

OntarioGlasgow

ONT - GLA

ONTGLA

Ontario

sáb. 2/21

5:06 pm-5:10 pm

2 stops16h 04m

Glasgow Intl

vie. 2/27

8:25 pm-9:29 pm

2 stops33h 04m

$706

OntarioGlasgow

ONT - GLA

ONTGLA

Ontario

mar. 5/12

5:02 pm-6:50 pm

2 stops17h 48m

Glasgow Intl

lun. 8/31

7:30 pm-9:28 pm

2 stops33h 58m

$721

OntarioGlasgow

ONT - GLA

ONTGLA

Ontario

mié. 3/11

5:02 pm-6:15 pm

2 stops18h 13m

Glasgow Intl

mar. 4/7

5:55 am-8:18 pm

2 stops22h 23m

$806

OntarioGlasgow

ONT - GLA

ONTGLA

Ontario

mié. 1/28

3:09 pm-3:50 pm

2 stops16h 41m

Glasgow Intl

dom. 2/1

9:20 am-10:13 pm

2 stops20h 53m

$822

OntarioGlasgow

ONT - GLA

ONTGLA

Ontario

lun. 3/16

5:02 pm-6:15 pm

2 stops18h 13m

Glasgow Intl

dom. 3/22

6:05 pm-6:42 pm

2 stops31h 37m

$915

OntarioGlasgow

ONT - GLA

ONTGLA

Ontario

vie. 5/29

1:33 pm-6:55 pm

2 stops21h 22m

Glasgow Intl

vie. 6/5

7:10 am-4:32 pm

2 stops41h 22m

$1,366

OntarioGlasgow

ONT - GLA

ONTGLA

Ontario

dom. 6/7

5:00 pm-6:45 pm

2 stops17h 45m

Glasgow Intl

sáb. 6/13

5:20 pm-12:14 am

2 stops38h 54m

$1,939

OntarioGlasgow

ONT - GLA

ONTGLA

Ontario

sáb. 12/27

12:56 pm-2:55 pm

2 stops17h 59m

Glasgow Intl

vie. 1/2

9:40 am-11:46 pm

2 stops22h 06m

$3,002

OntarioGlasgow

ONT - GLA

ONTGLA

Ontario

dom. 1/4

12:56 pm-2:35 pm

2 stops17h 39m

Glasgow Intl

vie. 1/9

8:25 pm-10:48 pm

2 stops34h 23m

$3,240

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/11

Showing 1-10 of 22 results
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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 December.
ProviderPrice AccuracyTrust Score*
OvagoPrice Accuracy2 starsTrust Score*2 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star

*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 Ovago the most. Ovago 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 $560). Flying from Ontario to Glasgow Intl Airport in June is currently the most expensive (average of $982). 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 diciembre 12, 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
7,571 reviews

Boarding

6.9

Overall

6.7

Comfort

6.7

Crew

7.6

Food

6.4

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
7,571 reviews
British Airways
6.7
Okay
7,571 reviews

Boarding

6.9

Overall

6.7

Comfort

6.7

Crew

7.6

Food

6.4

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 38m. 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 $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, August is the cheapest month in which you can book a flight from Ontario to Glasgow Intl Airport (average of $560). Flying from Ontario to Glasgow Intl Airport in June is currently the most expensive (average of $982). 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 diciembre 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$660Average$900FlexibilityNo cancel feeOn-time70%

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