When did momondo last update prices for flights from Glasgow Intl Airport to Ontario Airport?

Prices for flights from Glasgow Intl Airport to Ontario Airport were last updated today.

How old do you have to be to fly from Glasgow Intl Airport to Ontario Airport?

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Glasgow Intl Airport to Ontario Airport.

What documentation or ID do you need to fly to Ontario Airport?

The travel and health documents required for your trip to Ontario Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Ontario Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

£447 Cheap Flights from Glasgow Intl Airport to Ontario in 2026

Find the cheapest flights from Glasgow Intl Airport to Los Angeles

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08:35 - 22:59GLA Glasgow Intl-ONT Ontario

22h 24m2 stops London Heathrow Dallas/Fort Worth

12:59 - 19:40ONT Ontario-GLA Glasgow Intl

22h 41m2 stops Phoenix Sky Harbor Intl London Heathrow

£655British Airways

Thu, 3 Sep - Mon, 7 Sep

08:00 - 18:52GLA Glasgow Intl-ONT Ontario

18h 52m2 stops London Heathrow Dallas/Fort Worth

12:43 - 15:50ONT Ontario-GLA Glasgow Intl

19h 07m2 stops Dallas/Fort Worth London Heathrow

£660British Airways

Fri, 22 Jan - Tue, 26 Jan

11:40 - 22:45GLA Glasgow Intl-ONT Ontario

19h 05m2 stops London Heathrow Dallas/Fort Worth

12:43 - 17:10ONT Ontario-GLA Glasgow Intl

20h 27m2 stops Dallas/Fort Worth London Heathrow

£660British Airways

Fri, 22 Jan - Tue, 26 Jan

11:40 - 22:45GLA Glasgow Intl-ONT Ontario

19h 05m2 stops London Heathrow Dallas/Fort Worth

12:43 - 17:10ONT Ontario-GLA Glasgow Intl

20h 27m2 stops Dallas/Fort Worth London Heathrow

£662British Airways

Fri, 22 Jan - Tue, 26 Jan

05:55 - 18:47GLA Glasgow Intl-ONT Ontario

20h 52m2 stops London Heathrow Dallas/Fort Worth

16:29 - 18:40ONT Ontario-GLA Glasgow Intl

18h 11m2 stops Phoenix Sky Harbor Intl London Heathrow

£665British Airways

Tue, 25 Aug - Tue, 6 Oct

10:00 - 18:15GLA Glasgow Intl-ONT Ontario

40h 15m2 stops London Heathrow Phoenix Sky Harbor Intl

16:29 - 19:35ONT Ontario-GLA Glasgow Intl

19h 06m2 stops Phoenix Sky Harbor Intl London Heathrow

£666British Airways

Mon, 7 Sep - Thu, 15 Oct

19:30 - 18:15GLA Glasgow Intl-ONT Ontario

30h 45m2 stops London Heathrow Phoenix Sky Harbor Intl

16:29 - 19:35ONT Ontario-GLA Glasgow Intl

19h 06m2 stops Phoenix Sky Harbor Intl London Heathrow

£667British Airways

Tue, 1 Sep - Thu, 15 Oct

06:00 - 16:24GLA Glasgow Intl-ONT Ontario

18h 24m2 stops Amsterdam Schiphol Salt Lake City

13:04 - 12:55ONT Ontario-GLA Glasgow Intl

15h 51m2 stops Salt Lake City Amsterdam Schiphol

£984KLM

Sat, 5 Sep - Tue, 15 Sep

14:20 - 22:00GLA Glasgow Intl-ONT Ontario

15h 40m2 stops Reykjavik Keflavik Intl Denver Intl

14:13 - 13:25ONT Ontario-GLA Glasgow Intl

15h 12m2 stops Seattle/Tacoma Intl Reykjavik Keflavik Intl

£987Multiple Airlines

Wed, 2 Sep - Wed, 14 Oct

14:20 - 16:10GLA Glasgow Intl-ONT Ontario

33h 50m2 stops Reykjavik Keflavik Intl Denver Intl

12:25 - 13:25ONT Ontario-GLA Glasgow Intl

17h 00m2 stops Denver Intl Reykjavik Keflavik Intl

£1,194Multiple Airlines

Sat, 5 Sep - Mon, 14 Sep

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British Airways flights from Glasgow Intl Airport to Ontario

Our best British Airways deals on Glasgow Intl Airport to Ontario flight tickets

British Airways

3 Sept

GLA08:35Glasgow Intl

22h 24m

2 stops

ONT22:59Ontario

7 Sept

ONT12:59Ontario

22h 41m

2 stops

GLA19:40Glasgow Intl

£655

British Airways

22 Jan

GLA08:00Glasgow Intl

18h 52m

2 stops

ONT18:52Ontario

26 Jan

ONT12:43Ontario

19h 07m

2 stops

GLA15:50Glasgow Intl

£660

British Airways

22 Jan

GLA11:40Glasgow Intl

19h 05m

2 stops

ONT22:45Ontario

26 Jan

ONT12:43Ontario

20h 12m

2 stops

GLA16:55Glasgow Intl

£660

momondo Fare Finder

Use the filters below to find and compare flights from Glasgow Intl Airport to Ontario that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

GlasgowOntario

GLA Glasgow Intl - ONT Ontario

GLAONT

Glasgow Intl

Thu 3/9

08:35-22:59

2 stops22h 24m

Ontario

Mon 7/9

12:59-19:40

2 stops22h 41m

£655

GlasgowOntario

GLA Glasgow Intl - ONT Ontario

GLAONT

Glasgow Intl

Fri 22/1

08:00-18:52

2 stops18h 52m

Ontario

Tue 26/1

12:43-15:50

2 stops19h 07m

£660

GlasgowOntario

GLA Glasgow Intl - ONT Ontario

GLAONT

Glasgow Intl

Fri 22/1

11:40-22:45

2 stops19h 05m

Ontario

Tue 26/1

12:43-17:10

2 stops20h 27m

£660

GlasgowOntario

GLA Glasgow Intl - ONT Ontario

GLAONT

Glasgow Intl

Fri 22/1

11:40-22:45

2 stops19h 05m

Ontario

Tue 26/1

12:43-17:10

2 stops20h 27m

£662

GlasgowOntario

GLA Glasgow Intl - ONT Ontario

GLAONT

Glasgow Intl

Tue 25/8

05:55-18:47

2 stops20h 52m

Ontario

Tue 6/10

16:29-18:40

2 stops18h 11m

£665

GlasgowOntario

GLA Glasgow Intl - ONT Ontario

GLAONT

Glasgow Intl

Mon 7/9

10:00-18:15

2 stops40h 15m

Ontario

Thu 15/10

16:29-19:35

2 stops19h 06m

£666

GlasgowOntario

GLA Glasgow Intl - ONT Ontario

GLAONT

Glasgow Intl

Tue 1/9

19:30-18:15

2 stops30h 45m

Ontario

Thu 15/10

16:29-19:35

2 stops19h 06m

£667

GlasgowOntario

GLA Glasgow Intl - ONT Ontario

GLAONT

Glasgow Intl

Sat 5/9

06:00-16:24

2 stops18h 24m

Ontario

Tue 15/9

13:04-12:55

2 stops15h 51m

£984

Fastest return journey

GlasgowOntario

GLA Glasgow Intl - ONT Ontario

GLAONT

Glasgow Intl

Wed 2/9

14:20-22:00

2 stops15h 40m

Ontario

Wed 14/10

14:13-13:25

2 stops15h 12m

£987

GlasgowOntario

GLA Glasgow Intl - ONT Ontario

GLAONT

Glasgow Intl

Sat 5/9

14:20-16:10

2 stops33h 50m

Ontario

Mon 14/9

12:25-13:25

2 stops17h 00m

£1,194

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Glasgow Intl Airport to Ontario

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest airline that flies from Glasgow Intl to Ontario?

United Airlines is the most popular carrier operating from Glasgow Intl to Ontario

Which airlines fly to Ontario?

British Airways, Aer Lingus and KLM are the top three most popular airlines that fly to Ontario from Glasgow Intl Airport according to our data. British Airways is the first choice among our users, with 54% of people opting to fly with this airline when travelling to Ontario. Keep in mind that there are 7 different airlines that fly to Ontario on a routine basis, so you have a few additional options to choose from.

When to book flights from Glasgow Intl Airport to Ontario

Are you open to changing your travel dates? Check out the ideal times to fly from Glasgow Intl Airport to Ontario according to our flight data. Find out which month and days have the cheapest flights.

Estimated return price

Cheap Glasgow Intl Airport to Ontario (GLA to ONT) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Glasgow Intl Airport to Ontario

Fastest flight time	18h 24m
Direct flights	None

The fastest flight from Glasgow Intl Airport to Ontario takes 18h 24m

There are no direct flights from Glasgow Intl Airport to Ontario. There are no popular flight routes from Glasgow Intl Airport to Ontario.

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Frequently asked questions about flying from Glasgow Intl Airport to Ontario

How far is Glasgow Intl to Ontario by plane?
There are 5089.6 mi between Glasgow Intl and Ontario. Typically, this will take 18h 24m by plane in normal conditions.
When did momondo last update prices for flights from Glasgow Intl Airport to Ontario Airport?
Prices for flights from Glasgow Intl Airport to Ontario Airport were last updated today.
How old do you have to be to fly from Glasgow Intl Airport to Ontario Airport?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Glasgow Intl Airport to Ontario Airport.
What documentation or ID do you need to fly to Ontario Airport?
The travel and health documents required for your trip to Ontario Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Ontario Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Why use momondo?

Why should I use momondo to find a flight deal from Glasgow to Ontario?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Glasgow to Ontario . Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Glasgow to Ontario with flexible booking policies on momondo?

Yes. All flights to Ontario from Glasgow on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from Glasgow to Ontario?

Once all potential Glasgow to Ontario flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from Glasgow to Ontario right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Glasgow to Ontario now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Ontario and let you know when they change.