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Glasgow Intl

$325+ 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 7/28. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — GLA
jun 20 — jun 271
sex 6/20
sex 6/27
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 junho 15, 2025.

Round-trip from

$916
(FlightHub)

One-way from

$325
(Trip.com)

Popular in

June

Cheapest in

November

Average price

$1,218
From Ontario to Glasgow Intl
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One-way flight from Ontario to Glasgow Intl
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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 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 junho 15, 2025.

This FlightHub deal was found by Cheapflights users on 6/13. 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.
ter 7/152:37 pmONT - GLA
2 stops18h 08mBritish Airways
qui 7/247:00 amGLA - ONT
2 stops19h 53mBritish Airways
Deal found 6/13$916
This Delta deal was found by Cheapflights users on 6/13. 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.
qua 6/251:15 pmONT - GLA
2 stops18h 55mDelta
ter 7/226:00 amGLA - ONT
2 stops19h 16mDelta
Deal found 6/13$975
This Air France deal was found by Cheapflights users on 6/15. 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.
seg 8/41:15 pmONT - GLA
2 stops15h 45mMultiple Airlines
ter 8/196:15 amGLA - ONT
2 stops17h 53mMultiple Airlines
Deal found 6/15$1,017
This Iberia deal was found by Cheapflights users on 6/13. 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
seg 6/162:40 pmONT - GLA
2 stops23h 00mIberia
ter 7/229:15 amGLA - ONT
2 stops41h 38mIberia
Deal found 6/13$1,540
This American Airlines deal was found by Cheapflights users on 6/13. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ter 6/1712:49 pmONT - GLA
2 stops22h 01mAmerican Airlines
sáb 7/265:50 amGLA - ONT
2 stops26h 04mAmerican Airlines
Deal found 6/13$1,740
This Air France deal was found by Cheapflights users on 6/13. 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.
sáb 6/145:13 pmONT - GLA
2 stops14h 57mKLM
qua 7/21:30 pmGLA - ONT
2 stops17h 15mKLM
Deal found 6/13$2,054

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 junho 15, 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

ter 7/15

2:37 pm-4:45 pm

2 stops18h 08m

Glasgow Intl

qui 7/24

7:00 am-6:53 pm

2 stops19h 53m

$916

OntarioGlasgow

ONT - GLA

ONTGLA

Ontario

qua 6/25

1:15 pm-4:10 pm

2 stops18h 55m

Glasgow Intl

ter 7/22

6:00 am-5:16 pm

2 stops19h 16m

$975

OntarioGlasgow

ONT - GLA

ONTGLA

Ontario

seg 8/4

1:15 pm-1:00 pm

2 stops15h 45m

Glasgow Intl

ter 8/19

6:15 am-4:08 pm

2 stops17h 53m

$1,017

OntarioGlasgow

ONT - GLA

ONTGLA

Ontario

qui 6/26

2:40 pm-7:40 pm

2 stops21h 00m

Glasgow Intl

ter 7/22

9:15 am-10:34 pm

2 stops45h 19m

$1,610

OntarioGlasgow

ONT - GLA

ONTGLA

Ontario

qui 6/26

8:15 am-9:40 am

2 stops17h 25m

Glasgow Intl

qui 7/24

7:00 am-6:53 pm

2 stops19h 53m

$1,810

OntarioGlasgow

ONT - GLA

ONTGLA

Ontario

seg 7/28

12:59 am-1:25 pm

2 stops28h 26m

$325

OntarioGlasgow

ONT - GLA

ONTGLA

Ontario

seg 7/28

4:45 pm-7:40 pm

2 stops18h 55m

$419

OntarioGlasgow

ONT - GLA

ONTGLA

Ontario

dom 7/27

5:09 pm-4:10 pm

2 stops15h 01m

$452

OntarioGlasgow

ONT - GLA

ONTGLA

Ontario

sáb 7/26

1:15 pm-12:55 pm

2 stops15h 40m

$537

OntarioGlasgow

ONT - GLA

ONTGLA

Ontario

qui 7/31

4:45 pm-4:05 pm

2 stops15h 20m

$554

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/14

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 $1,160). 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.

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 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 Intl Airport when rainfall is around 1.3 in.

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 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 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 junho 15, 2025.
To help decide which airline to fly from Ontario to Glasgow, see what other customers have to say about Delta, KLM and American Airlines. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,961 reviews

Comfort

7.9

Crew

8.5

Entertainment

7.9

Food

7.3

Overall

8.0

Boarding

8.2

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
7,961 reviews
Delta
8.0
Very good
7,961 reviews

Comfort

7.9

Crew

8.5

Entertainment

7.9

Food

7.3

Overall

8.0

Boarding

8.2

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
1,361 reviews
Delta
8.0
Very good
7,961 reviews

Comfort

7.9

Crew

8.5

Entertainment

7.9

Food

7.3

Overall

8.0

Boarding

8.2

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
7,961 reviews

Comfort

7.9

Crew

8.5

Entertainment

7.9

Food

7.3

Overall

8.0

Boarding

8.2

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
2,778 reviews
Delta
8.0
Very good
7,961 reviews

Comfort

7.9

Crew

8.5

Entertainment

7.9

Food

7.3

Overall

8.0

Boarding

8.2

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
7,015 reviews
Delta
8.0
Very good
7,961 reviews

Comfort

7.9

Crew

8.5

Entertainment

7.9

Food

7.3

Overall

8.0

Boarding

8.2

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 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.

  • What are the cheapest airlines flying 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 $916. Additional round-trip tickets that might be worth considering are offered by Delta and Iberia, with the lowest prices starting at $975 and $1,610, respectively.

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

    The cheapest airline one-way is British Airways, with whom users have recently found tickets for as low as $419. However, be on the lookout for offers from KLM and Delta, as they are both options that can get you from Ontario to Glasgow Intl Airport for a low price.

  • 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 $1,160). 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

Traveling to a place near Ontario?

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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 junho 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$632Average$1,100FlexibilityNo cancel feeOn-time70%

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