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$469+ 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 1/5. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — GLA
Dec 19 — Dec 261
Fri 12/19
Fri 12/26
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 November 19, 2025.

Round-trip from

$626
(FlightHub)

One-way from

$469
(Trip.com)

Popular in

June

Cheapest in

October

Average price

$731
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. 20% potential increase in price ($208 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($37 potential savings vs. average RT price).
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Average for round-trip flights in November 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 November 19, 2025.

This Justfly.com deal was found by Cheapflights users on 11/19. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/196:00 amONT - GLA
2 stops32h 10mMultiple Airlines
Fri 12/266:05 amGLA - ONT
2 stops24h 44mMultiple Airlines
Deal found 11/19$1,950
This FlightHub deal was found by Cheapflights users on 11/18. 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.
Sun 12/286:10 amONT - GLA
2 stops20h 35mBritish Airways
Sun 1/46:35 amGLA - ONT
2 stops19h 41mBritish Airways
Deal found 11/18$2,525
This Icelandair deal was found by Cheapflights users on 11/17. 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.
Thu 11/2010:59 amONT - GLA
2 stops14h 56mMultiple Airlines
Mon 12/112:35 pmGLA - ONT
2 stops19h 20mMultiple Airlines
Deal found 11/17$6,304

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 November 19, 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 1/17

4:45 pm-8:25 pm

2 stops19h 40m

Glasgow Intl

Fri 1/30

11:40 am-10:48 pm

2 stops19h 08m

$626

OntarioGlasgow

ONT - GLA

ONTGLA

Ontario

Mon 4/6

3:09 pm-4:45 pm

2 stops17h 36m

Glasgow Intl

Wed 4/15

8:40 am-9:56 pm

2 stops21h 16m

$692

OntarioGlasgow

ONT - GLA

ONTGLA

Ontario

Thu 3/5

10:59 am-3:10 pm

2 stops20h 11m

Glasgow Intl

Thu 3/19

6:35 am-8:15 pm

2 stops20h 40m

$714

OntarioGlasgow

ONT - GLA

ONTGLA

Ontario

Wed 3/18

3:09 pm-3:50 pm

2 stops17h 41m

Glasgow Intl

Tue 3/24

7:10 pm-8:15 pm

2 stops32h 05m

$722

OntarioGlasgow

ONT - GLA

ONTGLA

Ontario

Thu 3/19

5:02 pm-5:50 pm

2 stops17h 48m

Glasgow Intl

Wed 3/25

8:25 pm-9:40 pm

2 stops32h 15m

$765

OntarioGlasgow

ONT - GLA

ONTGLA

Ontario

Fri 2/13

7:10 am-6:00 pm

2 stops26h 50m

Glasgow Intl

Tue 2/17

11:40 am-10:51 pm

2 stops19h 11m

$815

OntarioGlasgow

ONT - GLA

ONTGLA

Ontario

Fri 3/27

1:00 pm-8:45 am

2 stops36h 45m

Glasgow Intl

Tue 3/31

9:10 am-4:19 pm

2 stops39h 09m

$846

OntarioGlasgow

ONT - GLA

ONTGLA

Ontario

Sun 1/11

10:58 am-2:35 pm

2 stops19h 37m

Glasgow Intl

Fri 1/16

10:40 am-10:13 pm

2 stops19h 33m

$1,017

OntarioGlasgow

ONT - GLA

ONTGLA

Ontario

Mon 3/16

11:17 am-9:55 am

2 stops15h 38m

Glasgow Intl

Fri 3/20

12:35 pm-10:38 pm

2 stops17h 03m

$1,129

OntarioGlasgow

ONT - GLA

ONTGLA

Ontario

Thu 3/26

3:09 pm-4:40 pm

2 stops18h 31m

Glasgow Intl

Sat 4/4

1:00 pm-11:43 pm

2 stops18h 43m

$1,768

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/18

Showing 1-10 of 21 results
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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, October is the cheapest month in which you can book a flight from Ontario to Glasgow (average of $543). Flying from Ontario to Glasgow in June is currently the most expensive (average of $891). 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 November 19, 2025.

A simple way to save on the total cost of your ticket is to fly from Ontario to Glasgow in the afternoon. If you’re flexible enough to do this you can expect to save up to 20% on your trip compared to booking a flight at noon.

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 November 19, 2025.
Read reviews from past customers who have flown British Airways from Ontario to Glasgow. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
British Airways
6.7
Okay
7,534 reviews

Crew

7.6

Food

6.3

Comfort

6.7

Overall

6.7

Boarding

6.9

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
7,534 reviews
British Airways
6.7
Okay
7,534 reviews

Crew

7.6

Food

6.3

Comfort

6.7

Overall

6.7

Boarding

6.9

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. 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 2 different airlines.

  • How long is the flight from Ontario to Glasgow?

    Departing from Ontario to Glasgow will take you 19h 40m. There are 5088 mi between Ontario and Glasgow. Both multi-stop and nonstop flights can be found to your destination and back.

  • What is the cheapest airline to fly 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 $660 on this airline.

  • 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, October is the cheapest month in which you can book a flight from Ontario to Glasgow (average of $543). Flying from Ontario to Glasgow in June is currently the most expensive (average of $891). 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 2 airlines flying from Ontario to Glasgow

Discover the top 2 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 November 19, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$543Average$1,305FlexibilityNo cancel feeOn-timeN/A
British AirwaysCheapest$660Average$900FlexibilityNo cancel feeOn-time70%

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