How long does it take to fly to Ontario?

Average flight duration from Portugal to Ontario depends on which airport you fly into and out of. Flying from Lisbon to Los Angeles is 12h 30m on average, while flying from Porto to Los Angeles is 15h 15m on average. Los Angeles is the most popular airport in Ontario.

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

Prices for flights from Portugal to Ontario Airport are updated daily.

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

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Portugal to Ontario Airport.

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

The travel and health documents you'll need for your trip to Ontario Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Ontario Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$564 Cheap Flights from Portugal to Ontario in 2026

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Find the cheapest flights from Portugal to Los Angeles

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5:00 am - 5:41 pm

LIS

ONT

20h 41m

2 stops

8:00 am - 8:10 am

ONT

LIS

16h 10m

2 stops

$564United Airlines

Tue, Feb 24 - Tue, Mar 3

5:00 am - 10:37 pm

LIS

ONT

25h 37m

2 stops

2:00 pm - 5:50 pm

ONT

LIS

19h 50m

2 stops

$567Delta

Fri, Mar 6 - Fri, May 29

5:00 am - 9:05 pm

LIS

ONT

24h 05m

2 stops

2:00 pm - 5:50 pm

ONT

LIS

19h 50m

2 stops

$571Delta

Fri, Feb 27 - Sat, May 9

5:00 am - 9:05 pm

LIS

ONT

24h 05m

2 stops

11:55 am - 6:45 pm

ONT

LIS

22h 50m

2 stops

$572Delta

Fri, Mar 6 - Sat, May 30

5:30 am - 4:02 pm

LIS

ONT

18h 32m

2 stops

2:00 pm - 5:50 pm

ONT

LIS

19h 50m

2 stops

$576Delta

Fri, Feb 20 - Sat, May 9

6:10 am - 5:41 pm

LIS

ONT

19h 31m

2 stops

8:00 am - 10:15 am

ONT

LIS

18h 15m

2 stops

$577United Airlines

Wed, Feb 25 - Wed, Mar 4

11:05 am - 10:19 pm

LIS

ONT

19h 14m

2 stops

10:56 am - 2:45 pm

ONT

LIS

19h 49m

2 stops

$581American Airlines

Wed, Feb 25 - Tue, Mar 3

5:00 am - 9:05 pm

LIS

ONT

24h 05m

2 stops

5:05 pm - 6:45 pm

ONT

LIS

17h 40m

2 stops

$680KLM

Fri, Feb 20 - Fri, May 15

3:45 pm - 6:37 pm

FAO

ONT

34h 52m

2 stops

11:59 pm - 2:55 pm

ONT

FAO

30h 56m

2 stops

$967Multiple Airlines

Tue, May 5 - Tue, Jun 30

10:45 am - 11:59 pm

FAO

ONT

21h 14m

2 stops

10:59 am - 1:05 pm

ONT

FAO

18h 06m

2 stops

$5,582Multiple Airlines

Sun, Mar 29 - Thu, Apr 9

United Airlines flights from Portugal to Ontario

Our best United Airlines deals on Portugal to Ontario flight tickets

United Airlines

Feb 24

LIS5:00 amLisbon Humberto Delgado

20h 41m

2 stops

ONT5:41 pmOntario

Mar 3

ONT8:00 amOntario

16h 10m

2 stops

LIS8:10 amLisbon Humberto Delgado

$564

United Airlines

Feb 25

LIS6:10 amLisbon Humberto Delgado

19h 31m

2 stops

ONT5:41 pmOntario

Mar 4

ONT8:00 amOntario

18h 15m

2 stops

LIS10:15 amLisbon Humberto Delgado

$577

United Airlines

Feb 11

LIS6:10 amLisbon Humberto Delgado

38h 33m

2 stops

ONT12:43 pmOntario

Feb 15

ONT5:00 amOntario

19h 10m

2 stops

LIS8:10 amLisbon Humberto Delgado

$578

Delta flights from Portugal to Ontario

Our best Delta deals on Portugal to Ontario flight tickets

Delta

Mar 6

LIS5:00 amLisbon Humberto Delgado

25h 37m

2 stops

ONT10:37 pmOntario

May 29

ONT2:00 pmOntario

19h 50m

2 stops

LIS5:50 pmLisbon Humberto Delgado

$567

Delta

Feb 27

LIS5:00 amLisbon Humberto Delgado

24h 05m

2 stops

ONT9:05 pmOntario

May 9

ONT2:00 pmOntario

19h 50m

2 stops

LIS5:50 pmLisbon Humberto Delgado

$571

Delta

Mar 6

LIS5:00 amLisbon Humberto Delgado

24h 05m

2 stops

ONT9:05 pmOntario

May 30

ONT11:55 amOntario

22h 50m

2 stops

LIS6:45 pmLisbon Humberto Delgado

$572

Fly from

Fly to

Route

Depart

Return

Price

LisbonOntario

LIS - ONT

LISONT

Lisbon Humberto Delgado

Tue 2/24

5:00 am-5:41 pm

2 stops20h 41m

Ontario

Tue 3/3

8:00 am-8:10 am

2 stops16h 10m

$564

LisbonOntario

LIS - ONT

LISONT

Lisbon Humberto Delgado

Fri 3/6

5:00 am-10:37 pm

2 stops25h 37m

Ontario

Fri 5/29

2:00 pm-5:50 pm

2 stops19h 50m

$567

LisbonOntario

LIS - ONT

LISONT

Lisbon Humberto Delgado

Fri 2/27

5:00 am-9:05 pm

2 stops24h 05m

Ontario

Sat 5/9

2:00 pm-5:50 pm

2 stops19h 50m

$571

LisbonOntario

LIS - ONT

LISONT

Lisbon Humberto Delgado

Fri 3/6

5:00 am-9:05 pm

2 stops24h 05m

Ontario

Sat 5/30

11:55 am-6:45 pm

2 stops22h 50m

$572

LisbonOntario

LIS - ONT

LISONT

Lisbon Humberto Delgado

Fri 2/20

5:30 am-4:02 pm

2 stops18h 32m

Ontario

Sat 5/9

2:00 pm-5:50 pm

2 stops19h 50m

$576

LisbonOntario

LIS - ONT

LISONT

Lisbon Humberto Delgado

Wed 2/25

6:10 am-5:41 pm

2 stops19h 31m

Ontario

Wed 3/4

8:00 am-10:15 am

2 stops18h 15m

$577

LisbonOntario

LIS - ONT

LISONT

Lisbon Humberto Delgado

Wed 2/25

11:05 am-10:19 pm

2 stops19h 14m

Ontario

Tue 3/3

10:56 am-2:45 pm

2 stops19h 49m

$581

LisbonOntario

LIS - ONT

LISONT

Lisbon Humberto Delgado

Fri 2/20

5:00 am-9:05 pm

2 stops24h 05m

Ontario

Fri 5/15

5:05 pm-6:45 pm

2 stops17h 40m

$680

FaroOntario

FAO - ONT

FAOONT

Faro

Tue 5/5

3:45 pm-6:37 pm

2 stops34h 52m

Ontario

Tue 6/30

11:59 pm-2:55 pm

2 stops30h 56m

$967

FaroOntario

FAO - ONT

FAOONT

Faro

Sun 3/29

10:45 am-11:59 pm

2 stops21h 14m

Ontario

Thu 4/9

10:59 am-1:05 pm

2 stops18h 06m

$5,582

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Portugal 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

Airlines

Other information

What is the cheapest airline that flies from Portugal to Ontario?

British Airways, Iberia, and American Airlines are the most popular carriers operating from Portugal to Ontario

What airlines fly to Ontario?

TAP AIR PORTUGAL, British Airways and Air France are the top three most popular airlines that fly to Ontario from Portugal according to our data. TAP AIR PORTUGAL is the first choice among our users, with 48% of people opting to fly with this airline when traveling to Ontario. Keep in mind that there are 8 different airlines that fly to Ontario on a routine basis, so you have a few additional options to choose from.

Cheap Portugal to Ontario flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Portugal to Ontario

Fastest flight time	18h 43m
Direct flights	None

The fastest flight from Portugal to Ontario takes 18h 43m

There are no direct flights from Portugal to Ontario. There are no popular flight routes from Portugal to Ontario.

Search flight deals

When did momondo last update prices for flights from Portugal to Ontario Airport?
Prices for flights from Portugal to Ontario Airport are updated daily.
How old do you have to be to fly from Portugal to Ontario Airport?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Portugal to Ontario Airport.
What documentation or ID do you need to fly to Ontario Airport?
The travel and health documents you'll need for your trip to Ontario Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Ontario Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Portugal to Ontario. momondo saves you time and could save you money on your trip.

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

momondo does allow users to show only those flights to Ontario from Portugal which offer a flexible booking policy as well as other useful filters and features.

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

Once all potential Portugal 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 Portugal to Ontario right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Portugal to Ontario flights. All you need is a valid email address and we will do the rest; it is that quick and easy.