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Cheap flights from Portugal to Los Angeles from $595

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Portugal to Los Angeles departing on 9/16. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

Find the cheapest flights from Portugal to Los Angeles

Recent round-trip flight deals from Portugal to Los Angeles

Enter your travel dates to find the best prices.
United Airlines Logo
11:40 am - 10:51 pm
FAO
-
ONT
19h 11m
2 stops
United Airlines Logo
5:45 am - 9:55 am
ONT
-
FAO
20h 10m
2 stops
$1,013United Airlines
Tue, Jun 2 - Sun, Aug 30
United Airlines Logo
6:15 am - 10:51 pm
LIS
-
ONT
24h 36m
2 stops
United Airlines Logo
5:00 am - 8:20 am
ONT
-
LIS
19h 20m
2 stops
$1,014United Airlines
Fri, May 22 - Tue, May 26
Delta Logo
5:35 am - 4:17 pm
LIS
-
ONT
18h 42m
2 stops
Delta Logo
10:00 pm - 10:45 am
ONT
-
LIS
28h 45m
2 stops
$1,042Delta
Tue, May 19 - Sat, May 23
Multiple Airlines Logo
5:35 am - 4:14 pm
LIS
-
ONT
18h 39m
2 stops
Multiple Airlines Logo
5:05 pm - 6:45 pm
ONT
-
LIS
17h 40m
2 stops
$1,091Multiple Airlines
Wed, Sep 23 - Wed, Sep 30
Multiple Airlines Logo
5:55 am - 11:11 pm
LIS
-
ONT
25h 16m
2 stops
Multiple Airlines Logo
11:50 pm - 9:50 am
ONT
-
LIS
50h 00m
2 stops
$1,189Multiple Airlines
Tue, Jul 14 - Tue, Jul 28
British Airways Logo
11:05 am - 7:15 pm
LIS
-
ONT
40h 10m
2 stops
British Airways Logo
2:43 pm - 6:05 pm
ONT
-
LIS
19h 22m
2 stops
$1,207British Airways
Sat, Aug 8 - Sat, Aug 22
United Airlines Logo
3:25 pm - 9:55 pm
FAO
-
ONT
38h 30m
2 stops
United Airlines Logo
6:10 am - 9:20 am
ONT
-
FAO
43h 10m
2 stops
$1,231United Airlines
Sun, Jun 21 - Sun, Jun 28
Air France Logo
5:35 am - 4:30 pm
LIS
-
ONT
18h 55m
2 stops
Air France Logo
11:56 am - 2:55 pm
ONT
-
LIS
18h 59m
2 stops
$1,239Air France
Sat, Jul 25 - Fri, Aug 7
Multiple Airlines Logo
5:55 am - 11:11 pm
LIS
-
ONT
25h 16m
2 stops
Multiple Airlines Logo
11:50 pm - 3:45 pm
ONT
-
LIS
55h 55m
2 stops
$1,248Multiple Airlines
Wed, Aug 5 - Tue, Aug 18
Air France Logo
5:35 am - 9:52 pm
LIS
-
ONT
24h 17m
2 stops
Air France Logo
7:05 am - 11:15 am
ONT
-
LIS
20h 10m
2 stops
$1,255Air France
Thu, Aug 6 - Sat, Aug 15

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British Airways flights from Portugal to Ontario

Our best British Airways deals on Portugal to Ontario flight tickets
British Airways
Aug 8
LIS11:05 amLisbon Humberto Delgado
40h 10m
2 stops
ONT7:15 pmOntario
Aug 22
ONT2:43 pmOntario
19h 22m
2 stops
LIS6:05 pmLisbon Humberto Delgado
$1,207
British Airways
Jun 5
LIS7:20 amLisbon Humberto Delgado
23h 19m
2 stops
ONT10:39 pmOntario
Jun 12
ONT12:41 pmOntario
18h 54m
2 stops
LIS3:35 pmLisbon Humberto Delgado
$1,381

KLM flights from Portugal to Ontario

Our best KLM deals on Portugal to Ontario flight tickets
KLM
Jun 21
FAO8:00 pmFaro
29h 19m
3 stops
ONT5:19 pmOntario
Jun 28
ONT6:20 amOntario
29h 10m
3 stops
FAO7:30 pmFaro
$1,463
KLM
May 10
FAO9:20 amFaro
21h 14m
2 stops
ONT10:34 pmOntario
May 15
ONT4:57 pmOntario
20h 08m
2 stops
FAO9:05 pmFaro
$1,771

momondo Fare Finder

 
Customize your flight search to find flights from Portugal to Ontario 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, momondo users made 832,500 searches. Data last updated May 7, 2026.
Use the filters below to find and compare flights from Portugal to Ontario that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

FaroOntario

FAO - ONT

FAOONT

Faro

Tue 6/2

11:40 am-10:51 pm

2 stops19h 11m

Ontario

Sun 8/30

5:45 am-9:55 am

2 stops20h 10m

$1,013

LisbonOntario

LIS - ONT

LISONT

Lisbon Humberto Delgado

Fri 5/22

6:15 am-10:51 pm

2 stops24h 36m

Ontario

Tue 5/26

5:00 am-8:20 am

2 stops19h 20m

$1,014

LisbonOntario

LIS - ONT

LISONT

Lisbon Humberto Delgado

Tue 5/19

5:35 am-4:17 pm

2 stops18h 42m

Ontario

Sat 5/23

10:00 pm-10:45 am

2 stops28h 45m

$1,042
Quickest round-trip

LisbonOntario

LIS - ONT

LISONT

Lisbon Humberto Delgado

Wed 9/23

5:35 am-4:14 pm

2 stops18h 39m

Ontario

Wed 9/30

5:05 pm-6:45 pm

2 stops17h 40m

$1,091

LisbonOntario

LIS - ONT

LISONT

Lisbon Humberto Delgado

Tue 7/14

5:55 am-11:11 pm

2 stops25h 16m

Ontario

Tue 7/28

11:50 pm-9:50 am

2 stops50h 00m

$1,189

LisbonOntario

LIS - ONT

LISONT

Lisbon Humberto Delgado

Sat 8/8

11:05 am-7:15 pm

2 stops40h 10m

Ontario

Sat 8/22

2:43 pm-6:05 pm

2 stops19h 22m

$1,207

FaroOntario

FAO - ONT

FAOONT

Faro

Sun 6/21

3:25 pm-9:55 pm

2 stops38h 30m

Ontario

Sun 6/28

6:10 am-9:20 am

2 stops43h 10m

$1,231

LisbonOntario

LIS - ONT

LISONT

Lisbon Humberto Delgado

Sat 7/25

5:35 am-4:30 pm

2 stops18h 55m

Ontario

Fri 8/7

11:56 am-2:55 pm

2 stops18h 59m

$1,239

LisbonOntario

LIS - ONT

LISONT

Lisbon Humberto Delgado

Wed 8/5

5:55 am-11:11 pm

2 stops25h 16m

Ontario

Tue 8/18

11:50 pm-3:45 pm

2 stops55h 55m

$1,248

LisbonOntario

LIS - ONT

LISONT

Lisbon Humberto Delgado

Thu 8/6

5:35 am-9:52 pm

2 stops24h 17m

Ontario

Sat 8/15

7:05 am-11:15 am

2 stops20h 10m

$1,255

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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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 airline that flies from Portugal to Ontario?

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

What airlines fly to Ontario?

TAP AIR PORTUGAL, British Airways and Iberia 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 55% of people opting to fly with this airline when traveling 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.

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

19h 26m

Direct flights

None
The fastest flight from Portugal to Ontario takes 19h 26m
There are no direct flights from Portugal to Ontario. There are no popular flight routes from Portugal to Ontario.
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Frequently asked questions about flying 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 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.

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