What airlines fly to Ontario?

British Airways, TAP AIR PORTUGAL and Air France are the top three most popular airlines that fly to Ontario from Portugal according to our data. British Airways is the first choice among our users, with 38% of people opting to fly with this airline when traveling to Ontario. Keep in mind that there are 11 different airlines that fly to Ontario on a routine basis, so you have a few additional options to choose from.

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 25m on average, while flying from Faro to Los Angeles is 15h 50m on average. Los Angeles is the most popular airport in Ontario.

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

Iberia, American Airlines, and British Airways are the most popular carriers operating from Portugal to 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 many operators does momondo search for flights from Portugal to Ontario Airport?

There is 1 operator available for flights from Portugal to Ontario Airport as of September 2025.

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.

$749 Cheap Flights from Portugal to Ontario in 2025

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Find the cheapest flights from Portugal to Los Angeles

Round-trip

One-way

Last minute

Recent round-trip flight deals from Portugal to Los Angeles

11:05 am - 9:40 pmLIS-ONT

18h 35m2 stops

3:05 pm - 9:45 pmONT-LIS

22h 40m2 stops

$749American Airlines

Find Deal

Fri, Feb 13 - Tue, Feb 17

5:00 am - 8:58 pmLIS-ONT

23h 58m2 stops

5:05 am - 8:10 amONT-LIS

19h 05m2 stops

$834United Airlines

Find Deal

Thu, Jan 29 - Mon, Feb 9

5:00 am - 5:43 pmLIS-ONT

20h 43m2 stops

6:00 am - 8:10 amONT-LIS

18h 10m2 stops

$858United Airlines

Find Deal

Mon, Jan 12 - Fri, Jan 30

10:25 am - 12:32 pmLIS-ONT

34h 07m2 stops

5:10 am - 8:20 amONT-LIS

19h 10m2 stops

$860United Airlines

Find Deal

Fri, Sep 19 - Tue, Sep 23

7:05 pm - 4:09 pmFAO-ONT

29h 04m2 stops

6:40 am - 6:55 pmONT-FAO

28h 15m2 stops

$949KLM

Find Deal

Thu, Dec 4 - Mon, Dec 8

7:05 pm - 5:08 pmFAO-ONT

30h 03m2 stops

6:40 am - 9:30 amONT-FAO

42h 50m2 stops

$953KLM

Find Deal

Thu, Dec 4 - Mon, Dec 8

11:20 am - 9:07 pmLIS-ONT

17h 47m2 stops

7:00 am - 9:20 amONT-LIS

18h 20m2 stops

$1,063

Find Deal

Fri, Dec 26 - Tue, Jan 6

6:35 am - 6:54 pmLIS-ONT

20h 19m2 stops

10:53 am - 11:50 amONT-LIS

16h 57m2 stops

$1,458British Airways

Find Deal

Fri, Sep 19 - Tue, Sep 23

9:45 am - 11:59 pmFAO-ONT

22h 14m2 stops

10:55 am - 11:50 amONT-FAO

16h 55m2 stops

$1,884

Find Deal

Sun, Sep 14 - Sun, Sep 21

8:25 am - 6:54 pmLIS-ONT

18h 29m2 stops

2:51 pm - 4:05 pmONT-LIS

17h 14m2 stops

$3,393Iberia

Find Deal

Fri, Oct 3 - Fri, Oct 10

American Airlines flights from Portugal to Ontario

Our best American Airlines deals on Portugal to Ontario flight tickets

American Airlines

Feb 13

LIS11:05 amLisbon Humberto Delgado

18h 35m

2 stops

ONT9:40 pmOntario

Feb 17

ONT3:05 pmOntario

22h 40m

2 stops

LIS9:45 pmLisbon Humberto Delgado

$749

Find similar

American Airlines

Dec 31

LIS8:20 amLisbon Humberto Delgado

21h 54m

2 stops

ONT10:14 pmOntario

Jan 20

ONT6:37 amOntario

18h 38m

2 stops

LIS9:15 amLisbon Humberto Delgado

$935

Find similar

American Airlines

Sep 8

LIS11:05 amLisbon Humberto Delgado

18h 43m

2 stops

ONT9:48 pmOntario

Sep 12

ONT8:15 amOntario

16h 50m

2 stops

LIS9:05 amLisbon Humberto Delgado

$1,075

Find similar

United Airlines flights from Portugal to Ontario

Our best United Airlines deals on Portugal to Ontario flight tickets

United Airlines

Jan 29

LIS5:00 amLisbon Humberto Delgado

23h 58m

2 stops

ONT8:58 pmOntario

Feb 9

ONT5:05 amOntario

19h 05m

2 stops

LIS8:10 amLisbon Humberto Delgado

$834

Find similar

United Airlines

Jan 12

LIS5:00 amLisbon Humberto Delgado

20h 43m

2 stops

ONT5:43 pmOntario

Jan 30

ONT6:00 amOntario

18h 10m

2 stops

LIS8:10 amLisbon Humberto Delgado

$858

Find similar

United Airlines

Sep 19

LIS10:25 amLisbon Humberto Delgado

34h 07m

2 stops

ONT12:32 pmOntario

Sep 23

ONT5:10 amOntario

19h 10m

2 stops

LIS8:20 amLisbon Humberto Delgado

$860

Find similar

Fly from

Fly to

Route

Depart

Return

Price

LisbonOntario

LIS - ONT

LISONT

Lisbon Humberto Delgado

Fri 2/13

11:05 am-9:40 pm

2 stops18h 35m

Ontario

Tue 2/17

3:05 pm-9:45 pm

2 stops22h 40m

$749

LisbonOntario

LIS - ONT

LISONT

Lisbon Humberto Delgado

Thu 1/29

5:00 am-8:58 pm

2 stops23h 58m

Ontario

Mon 2/9

5:05 am-8:10 am

2 stops19h 05m

$834

LisbonOntario

LIS - ONT

LISONT

Lisbon Humberto Delgado

Mon 1/12

5:00 am-5:43 pm

2 stops20h 43m

Ontario

Fri 1/30

6:00 am-8:10 am

2 stops18h 10m

$858

LisbonOntario

LIS - ONT

LISONT

Lisbon Humberto Delgado

Fri 9/19

10:25 am-12:32 pm

2 stops34h 07m

Ontario

Tue 9/23

5:10 am-8:20 am

2 stops19h 10m

$860

FaroOntario

FAO - ONT

FAOONT

Faro

Thu 12/4

7:05 pm-4:09 pm

2 stops29h 04m

Ontario

Mon 12/8

6:40 am-6:55 pm

2 stops28h 15m

$949

FaroOntario

FAO - ONT

FAOONT

Faro

Thu 12/4

7:05 pm-5:08 pm

2 stops30h 03m

Ontario

Mon 12/8

6:40 am-9:30 am

2 stops42h 50m

$953

LisbonOntario

LIS - ONT

LISONT

Lisbon Humberto Delgado

Fri 12/26

11:20 am-9:07 pm

2 stops17h 47m

Ontario

Tue 1/6

7:00 am-9:20 am

2 stops18h 20m

$1,063

LisbonOntario

LIS - ONT

LISONT

Lisbon Humberto Delgado

Fri 9/19

6:35 am-6:54 pm

2 stops20h 19m

Ontario

Tue 9/23

10:53 am-11:50 am

2 stops16h 57m

$1,458

FaroOntario

FAO - ONT

FAOONT

Faro

Sun 9/14

9:45 am-11:59 pm

2 stops22h 14m

Ontario

Sun 9/21

10:55 am-11:50 am

2 stops16h 55m

$1,884

LisbonOntario

LIS - ONT

LISONT

Lisbon Humberto Delgado

Fri 10/3

8:25 am-6:54 pm

2 stops18h 29m

Ontario

Fri 10/10

2:51 pm-4:05 pm

2 stops17h 14m

$3,393

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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

Prices

Airlines

Other information

What is the cheapest day to depart on your flight to Ontario?

The cheapest day to depart on your flight to Ontario is on a Thursday when prices can be found for as low as $831. This is often the case because there is less demand to fly during this day of the week. When flying out on a Tuesday, the most expensive travel day of the week, you can expect to see flight prices from Portugal to Ontario for around $848.

Cheap Portugal to Ontario flight deals and tips

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

Direct flights	None

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 many operators does momondo search for flights from Portugal to Ontario Airport?
There is 1 operator available for flights from Portugal to Ontario Airport as of September 2025.
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.

Best airlines flying from Portugal to Ontario

Compare and see reviews for airlines that fly from Portugal to Ontario with momondo

Airline	Rating	Free Cancellation	Price
KLM	PriceFrom $744	Free Cancellation	Rating 7.8 1,383 reviews		Search KLM flights

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.

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Cheap flights from Portugal to Los Angeles from $749

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Portugal to Los Angeles departing on 2/13. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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Find the cheapest flights from Portugal to Los Angeles

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Recent one-way flight deals from Portugal to Los Angeles

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American Airlines flights from Portugal to Ontario

Our best American Airlines deals on Portugal to Ontario flight tickets

United Airlines flights from Portugal to Ontario

Our best United Airlines deals on Portugal to Ontario flight tickets

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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

What is the cheapest day to depart on your flight to Ontario?

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

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

What airlines fly to Ontario?

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 25m on average, while flying from Faro to Los Angeles is 15h 50m on average. Los Angeles is the most popular airport in Ontario.

Cheap Portugal to Ontario flight deals and tips

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

Direct flights

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

How many operators does momondo search for flights from Portugal to Ontario Airport?

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

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

Best airlines flying from Portugal to Ontario

Compare and see reviews for airlines that fly from Portugal to Ontario with momondo

Why use momondo?

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

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

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

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

An easier way to manage your Ontario trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to the United States

Airports servicing California