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

Iberia, American Airlines, and KLM 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 38% of people opting to fly with this airline when traveling to Ontario. Keep in mind that there are 9 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 30m on average, while flying from Porto to Los Angeles is 15h 40m 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.

$394 Cheap Flights from Portugal to Ontario in 2025/26

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Find the cheapest flights from Portugal to Los Angeles

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One-way

Recent round-trip flight deals from Portugal to Los Angeles

Enter your travel dates to find the best prices.

11:05 am - 9:57 pmLIS-ONT

18h 52m2 stops

11:05 am - 9:45 pmONT-LIS

26h 40m2 stops

$881American Airlines

Find Deal

vie., feb. 20 - mar., feb. 24

5:00 am - 8:58 pmLIS-ONT

23h 58m2 stops

5:05 am - 8:10 amONT-LIS

19h 05m2 stops

$891United Airlines

Find Deal

lun., ene. 26 - mar., feb. 10

11:05 am - 10:08 pmLIS-ONT

19h 03m2 stops

11:59 pm - 9:05 amONT-LIS

25h 06m2 stops

$894American Airlines

Find Deal

vie., feb. 20 - mar., feb. 24

6:10 am - 5:43 pmLIS-ONT

19h 33m2 stops

6:00 am - 8:10 amONT-LIS

18h 10m2 stops

$904United Airlines

Find Deal

vie., ene. 30 - vie., feb. 20

7:05 pm - 5:08 pmFAO-ONT

30h 03m2 stops

12:12 pm - 9:30 amONT-FAO

37h 18m2 stops

$947KLM

Find Deal

jue., dic. 4 - lun., dic. 8

7:05 pm - 4:09 pmFAO-ONT

29h 04m2 stops

6:00 am - 9:30 amONT-FAO

43h 30m2 stops

$948KLM

Find Deal

jue., dic. 4 - lun., dic. 8

6:10 am - 5:41 pmLIS-ONT

19h 31m2 stops

5:00 am - 9:20 amONT-LIS

20h 20m3 stops

$950United Airlines

Find Deal

vie., feb. 20 - mar., feb. 24

6:20 pm - 6:18 pmFAO-ONT

31h 58m2 stops

12:45 pm - 5:15 pmONT-FAO

20h 30m2 stops

$2,764British Airways

Find Deal

mié., dic. 24 - dom., ene. 4

10:55 am - 10:31 pmLIS-ONT

19h 36m2 stops

7:00 am - 9:20 amONT-LIS

18h 20m2 stops

$3,561Multiple Airlines

Find Deal

jue., nov. 13 - jue., nov. 27

10:00 am - 10:05 pmLIS-ONT

20h 05m2 stops

10:25 pm - 9:00 amONT-LIS

26h 35m2 stops

$4,187KLM

Find Deal

sáb., dic. 6 - jue., dic. 11

United Airlines flights from Portugal to Ontario

Our best United Airlines deals on Portugal to Ontario flight tickets

United Airlines

Jan 26

LIS5:00 amLisbon Humberto Delgado

23h 58m

2 stops

ONT8:58 pmOntario

Feb 10

ONT5:05 amOntario

19h 05m

2 stops

LIS8:10 amLisbon Humberto Delgado

$891

Find similar

United Airlines

Jan 30

LIS6:10 amLisbon Humberto Delgado

19h 33m

2 stops

ONT5:43 pmOntario

Feb 20

ONT6:00 amOntario

18h 10m

2 stops

LIS8:10 amLisbon Humberto Delgado

$904

Find similar

United Airlines

Feb 20

LIS6:10 amLisbon Humberto Delgado

19h 31m

2 stops

ONT5:41 pmOntario

Feb 24

ONT5:00 amOntario

20h 20m

3 stops

LIS9:20 amLisbon Humberto Delgado

$950

Find similar

KLM flights from Portugal to Ontario

Our best KLM deals on Portugal to Ontario flight tickets

KLM

Dec 4

FAO7:05 pmFaro

30h 03m

2 stops

ONT5:08 pmOntario

Dec 8

ONT12:12 pmOntario

37h 18m

2 stops

FAO9:30 amFaro

$947

Find similar

KLM

Dec 4

FAO7:05 pmFaro

29h 04m

2 stops

ONT4:09 pmOntario

Dec 8

ONT6:00 amOntario

43h 30m

2 stops

FAO9:30 amFaro

$948

Find similar

KLM

Nov 6

FAO7:05 pmFaro

28h 48m

2 stops

ONT3:53 pmOntario

Nov 11

ONT7:05 amOntario

18h 25m

2 stops

FAO9:30 amFaro

$1,267

Find similar

Fly from

Fly to

Route

Depart

Return

Price

LisbonOntario

LIS - ONT

LISONT

Lisbon Humberto Delgado

vie. 2/20

11:05 am-9:57 pm

2 stops18h 52m

Ontario

mar. 2/24

11:05 am-9:45 pm

2 stops26h 40m

$881

LisbonOntario

LIS - ONT

LISONT

Lisbon Humberto Delgado

lun. 1/26

5:00 am-8:58 pm

2 stops23h 58m

Ontario

mar. 2/10

5:05 am-8:10 am

2 stops19h 05m

$891

LisbonOntario

LIS - ONT

LISONT

Lisbon Humberto Delgado

vie. 2/20

11:05 am-10:08 pm

2 stops19h 03m

Ontario

mar. 2/24

11:59 pm-9:05 am

2 stops25h 06m

$894

LisbonOntario

LIS - ONT

LISONT

Lisbon Humberto Delgado

vie. 1/30

6:10 am-5:43 pm

2 stops19h 33m

Ontario

vie. 2/20

6:00 am-8:10 am

2 stops18h 10m

$904

FaroOntario

FAO - ONT

FAOONT

Faro

jue. 12/4

7:05 pm-5:08 pm

2 stops30h 03m

Ontario

lun. 12/8

12:12 pm-9:30 am

2 stops37h 18m

$947

FaroOntario

FAO - ONT

FAOONT

Faro

jue. 12/4

7:05 pm-4:09 pm

2 stops29h 04m

Ontario

lun. 12/8

6:00 am-9:30 am

2 stops43h 30m

$948

LisbonOntario

LIS - ONT

LISONT

Lisbon Humberto Delgado

vie. 2/20

6:10 am-5:41 pm

2 stops19h 31m

Ontario

mar. 2/24

5:00 am-9:20 am

3 stops20h 20m

$950

FaroOntario

FAO - ONT

FAOONT

Faro

mié. 12/24

6:20 pm-6:18 pm

2 stops31h 58m

Ontario

dom. 1/4

12:45 pm-5:15 pm

2 stops20h 30m

$2,764

LisbonOntario

LIS - ONT

LISONT

Lisbon Humberto Delgado

jue. 11/13

10:55 am-10:31 pm

2 stops19h 36m

Ontario

jue. 11/27

7:00 am-9:20 am

2 stops18h 20m

$3,561

LisbonOntario

LIS - ONT

LISONT

Lisbon Humberto Delgado

sáb. 12/6

10:00 am-10:05 pm

2 stops20h 05m

Ontario

jue. 12/11

10:25 pm-9:00 am

2 stops26h 35m

$4,187

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

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 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.