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Glasgow Intl

$469+ 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 8/22. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — GLA
Jun 2 — Jun 91
Mon 6/2
Mon 6/9
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 May 28, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$786
(FlightHub)

One-way from

$469
(FlightHub)

Popular in

June

Cheapest in

January

Average price

$849
Provider with most accurate pricing for Ontario-Glasgow Intl flight deals.
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Provider most trusted by Cheapflights users for Ontario-Glasgow Intl flights.
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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. 22% potential increase in price ($237 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($35 potential savings vs. average RT price).
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Average for round-trip flights in May 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 May 28, 2025.

This FlightHub deal was found by Cheapflights users on 5/27. 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 8/162:57 pmONT - GLA
2 stops17h 58mBritish Airways
Sun 8/3112:05 pmGLA - ONT
2 stops17h 34mBritish Airways
Deal found 5/27$786
This KLM deal was found by Cheapflights users on 5/27. 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.
Fri 7/115:09 pmONT - GLA
2 stops15h 01mKLM
Fri 7/186:00 amGLA - ONT
2 stops19h 16mKLM
Deal found 5/27$1,003
This Icelandair deal was found by Cheapflights users on 5/27. 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 10/13:04 pmONT - GLA
2 stops14h 21mMultiple Airlines
Wed 10/82:20 pmGLA - ONT
2 stops16h 25mMultiple Airlines
Deal found 5/27$1,029
This Delta deal was found by Cheapflights users on 5/27. 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.
Mon 6/2311:49 amONT - GLA
2 stops20h 21mDelta
Mon 6/301:30 pmGLA - ONT
2 stops17h 15mDelta
Deal found 5/27$1,232

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 May 28, 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

Sat 8/16

2:57 pm-4:55 pm

2 stops17h 58m

Glasgow Intl

Sun 8/31

12:05 pm-9:39 pm

2 stops17h 34m

$786

OntarioGlasgow

ONT - GLA

ONTGLA

Ontario

Fri 7/11

5:09 pm-4:10 pm

2 stops15h 01m

Glasgow Intl

Fri 7/18

6:00 am-5:16 pm

2 stops19h 16m

$1,003

OntarioGlasgow

ONT - GLA

ONTGLA

Ontario

Wed 10/1

3:04 pm-1:25 pm

2 stops14h 21m

Glasgow Intl

Wed 10/8

2:20 pm-10:45 pm

2 stops16h 25m

$1,029

OntarioGlasgow

ONT - GLA

ONTGLA

Ontario

Mon 6/23

11:49 am-4:10 pm

2 stops20h 21m

Glasgow Intl

Mon 6/30

1:30 pm-10:45 pm

2 stops17h 15m

$1,232

OntarioGlasgow

ONT - GLA

ONTGLA

Ontario

Fri 8/22

8:14 am-9:35 am

2 stops17h 21m

$469

OntarioGlasgow

ONT - GLA

ONTGLA

Ontario

Thu 7/17

2:14 pm-4:10 pm

2 stops17h 56m

$606

OntarioGlasgow

ONT - GLA

ONTGLA

Ontario

Fri 6/20

2:40 pm-6:55 pm

2 stops20h 15m

$999

OntarioGlasgow

ONT - GLA

ONTGLA

Ontario

Wed 6/18

6:00 am-12:25 pm

2 stops22h 25m

$1,258

OntarioGlasgow

ONT - GLA

ONTGLA

Ontario

Tue 6/17

2:40 pm-4:45 pm

2 stops18h 05m

$1,460

OntarioGlasgow

ONT - GLA

ONTGLA

Ontario

Fri 8/22

3:04 pm-1:25 pm

2 stops14h 21m

$3,064

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/28

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 May.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*2 stars
eDreamsPrice 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 eDreams the most. eDreams 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, 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 $1,170). 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 May 28, 2025.
Delta
8.0
Very good
7,957 reviews

Overall

8.0

Boarding

8.2

Entertainment

7.9

Comfort

7.9

Crew

8.5

Food

7.3

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
7,957 reviews
Delta
8.0
Very good
7,957 reviews

Overall

8.0

Boarding

8.2

Entertainment

7.9

Comfort

7.9

Crew

8.5

Food

7.3

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
1,351 reviews
Delta
8.0
Very good
7,957 reviews

Overall

8.0

Boarding

8.2

Entertainment

7.9

Comfort

7.9

Crew

8.5

Food

7.3

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
7,957 reviews

Overall

8.0

Boarding

8.2

Entertainment

7.9

Comfort

7.9

Crew

8.5

Food

7.3

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.
Icelandair
7.0
Good
492 reviews
Delta
8.0
Very good
7,957 reviews

Overall

8.0

Boarding

8.2

Entertainment

7.9

Comfort

7.9

Crew

8.5

Food

7.3

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
2,754 reviews
Delta
8.0
Very good
7,957 reviews

Overall

8.0

Boarding

8.2

Entertainment

7.9

Comfort

7.9

Crew

8.5

Food

7.3

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 $786. Additional round-trip tickets that might be worth considering are offered by KLM and Delta, with the lowest prices starting at $1,003 and $1,232, 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 $469. However, be on the lookout for offers from Delta and American Airlines, 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 $1,170). 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 May 28, 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$632Average$1,100FlexibilityNo cancel feeOn-time70%

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