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$419+ Cheap flights from Ontario (ONT) to Glasgow

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 7/27. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — GLA
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
1 adult, Economy
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Cheap flight deals from Ontario to Glasgow

Discover tips and strategies to find the most affordable flight options for your journey from Ontario (ONT) to Glasgow (GG1). 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 June 12, 2025.

Round-trip from

$737
(FlightHub)

One-way from

$419
(FlightHub)

Popular in

June

Cheapest in

November

Average price

$1,218
From Ontario to Glasgow
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One-way flight from Ontario to Glasgow
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Highest demand for flights based on searches. 21% potential increase in price ($233 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 June 2025
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Find flight deals from Ontario to Glasgow

Cheapest flights from Ontario to Glasgow
Explore the most affordable flight options available from Ontario to Glasgow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 12, 2025.

This FlightHub deal was found by Cheapflights users on 6/11. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/168:14 amONT - GLA
2 stops17h 06mBritish Airways
Thu 8/2810:00 amGLA - ONT
2 stops20h 14mBritish Airways
Deal found 6/11$737
This Delta deal was found by Cheapflights users on 6/12. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/1612:00 pmONT - GLA
2 stops20h 10mDelta
Tue 10/146:00 amGLA - ONT
2 stops18h 14mDelta
Deal found 6/12$745
This Air France deal was found by Cheapflights users on 6/11. 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 Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/154:50 pmONT - GLA
2 stops15h 20mKLM
Wed 8/271:30 pmGLA - ONT
2 stops17h 10mKLM
Deal found 6/11$891
This Air France deal was found by Cheapflights users on 6/11. 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 Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/51:15 pmONT - GLA
2 stops15h 45mMultiple Airlines
Sat 8/96:00 amGLA - ONT
2 stops17h 44mMultiple Airlines
Deal found 6/11$2,266

Cheapflights Fare Finder

Customize your flight search to find flights from Ontario to Glasgow 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 June 12, 2025.
Use the filters below to find and compare flights from Ontario to Glasgow that are best for you.

Fly from

Ontario

Fly to

Glasgow

Route

Depart

Return

Price

OntarioGlasgow

ONT - GLA

ONTGLA

Ontario

Sat 8/16

8:14 am-9:20 am

2 stops17h 06m

Glasgow Intl

Thu 8/28

10:00 am-10:14 pm

2 stops20h 14m

$737

OntarioGlasgow

ONT - GLA

ONTGLA

Ontario

Tue 9/16

12:00 pm-4:10 pm

2 stops20h 10m

Glasgow Intl

Tue 10/14

6:00 am-4:14 pm

2 stops18h 14m

$745

OntarioGlasgow

ONT - GLA

ONTGLA

Ontario

Fri 8/15

4:50 pm-4:10 pm

2 stops15h 20m

Glasgow Intl

Wed 8/27

1:30 pm-10:40 pm

2 stops17h 10m

$891

OntarioGlasgow

ONT - GLA

ONTGLA

Ontario

Tue 8/5

1:15 pm-1:00 pm

2 stops15h 45m

Glasgow Intl

Sat 8/9

6:00 am-3:44 pm

2 stops17h 44m

$2,266

OntarioGlasgow

ONT - GLA

ONTGLA

Ontario

Sun 7/27

4:45 pm-6:45 pm

2 stops18h 00m

$419

OntarioGlasgow

ONT - GLA

ONTGLA

Ontario

Wed 7/23

5:09 pm-4:10 pm

2 stops15h 01m

$452

OntarioGlasgow

ONT - GLA

ONTGLA

Ontario

Tue 7/29

2:37 pm-4:45 pm

2 stops18h 08m

$492

OntarioGlasgow

ONT - GLA

ONTGLA

Ontario

Thu 7/24

1:15 pm-1:00 pm

2 stops15h 45m

$502

OntarioGlasgow

ONT - GLA

ONTGLA

Ontario

Tue 7/29

4:45 pm-4:45 pm

2 stops16h 00m

$504

OntarioGlasgow

ONT - GLA

ONTGLA

Ontario

Sat 6/28

7:00 am-12:20 pm

2 stops21h 20m

$1,029

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/11

Best time to book a flight from Ontario to Glasgow

Have a flexible travel schedule? Discover the best time to fly to Glasgow 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

What is the cheapest month to book a flight from Ontario to Glasgow?

Currently, November is the cheapest month in which you can book a flight from Ontario to Glasgow (average of $664). Flying from Ontario to Glasgow in June is currently the most expensive (average of $1,160). 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.

What is the cheapest time of day to fly from ONT to GLA?

Find hourly flight availability from Ontario to Glasgow. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated June 12, 2025.

When flying from Ontario to Glasgow, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Rainfall in Glasgow by month

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

In terms of precipitation, rainfall in Glasgow ranges from 1.3 - 4.4 inches per month. January is typically the wettest month, when rainfall can reach 4.4 in. May is typically the driest time to visit Glasgow when rainfall is around 1.3 in.

Temperature in Glasgow by month

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

If weather is an important factor for your trip to Glasgow, 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 60.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 39.2 F).

Reviews of airlines servicing Glasgow

Get insights into the airlines that provide service to Glasgow. 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. Reviews last updated June 12, 2025.
Delta
8.0
Very good
7,950 reviews

Food

7.3

Overall

8.0

Comfort

7.9

Entertainment

7.9

Boarding

8.2

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Delta
8.0
Very good
7,950 reviews
Delta
8.0
Very good
7,950 reviews

Food

7.3

Overall

8.0

Comfort

7.9

Entertainment

7.9

Boarding

8.2

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
KLM
7.8
Good
1,358 reviews
Delta
8.0
Very good
7,950 reviews

Food

7.3

Overall

8.0

Comfort

7.9

Entertainment

7.9

Boarding

8.2

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,950 reviews

Food

7.3

Overall

8.0

Comfort

7.9

Entertainment

7.9

Boarding

8.2

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Iberia
7.0
Good
2,776 reviews
Delta
8.0
Very good
7,950 reviews

Food

7.3

Overall

8.0

Comfort

7.9

Entertainment

7.9

Boarding

8.2

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
British Airways
6.6
Okay
7,008 reviews
Delta
8.0
Very good
7,950 reviews

Food

7.3

Overall

8.0

Comfort

7.9

Entertainment

7.9

Boarding

8.2

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Related info for your journey

Find useful and relevant information for your journey from Ontario to Glasgow. 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?

    If you book a flight to Glasgow from Ontario, you will be flying from Ontario, which is the city’s only airport. Ontario (ONT) is located 3.1 mi from the center of Ontario. There are 0 flights from Ontario to Glasgow per day from 3 different airlines.

  • What are the cheapest airlines flying from Ontario to Glasgow round-trip?

    Our cheapest airline available from Ontario to Glasgow is British Airways. Our recent data shows that you can find tickets from as low as $737 on this airline. Additional options worth looking into are Delta and KLM, starting at $745 and $891 round-trip.

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

    The cheapest airlines for a one-way flight from Ontario to Glasgow are British Airways ($419), Delta ($452), and Iberia ($492).

  • Can I find deals for flights from Ontario to Glasgow that include hotel bookings?

    Yes. In addition to deals on Ontario to Glasgow flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Ontario to Glasgow?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Ontario to Glasgow.

  • Can I find deals for business class flights from Ontario to Glasgow?

    Yes. Cheapflights offers flight deals from Ontario to Glasgow 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?

    Currently, November is the cheapest month in which you can book a flight from Ontario to Glasgow (average of $664). Flying from Ontario to Glasgow in June is currently the most expensive (average of $1,160). 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

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Top 3 airlines flying from Ontario to Glasgow

Discover the top 3 airlines that operate flights from Ontario to Glasgow. 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 June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$611Average$966FlexibilityNo cancel feeOn-time70%
American AirlinesCheapest$636Average$864FlexibilityNo cancel feeOn-time71%
DeltaCheapest$829Average$1,550FlexibilityNo cancel feeOn-timeN/A

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