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Cheap flights from Ontario to Portugal from $288

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Ontario to Portugal departing on 1/22. 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

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Find the cheapest flights from Ontario to Portugal

Cheap round-trip flights

Enter your travel dates to find the best prices.
Air Canada Logo
5:05 am - 9:20 amONT-LIS
20h 15m2 stops
Air Canada Logo
11:00 am - 9:07 pmLIS-ONT
42h 07m2 stops
$489Air Canada
Find Deal
Tue, Dec 9 - Wed, Dec 24
United Airlines Logo
1:53 pm - 9:20 amONT-LIS
35h 27m2 stops
United Airlines Logo
5:00 am - 12:38 pmLIS-ONT
39h 38m2 stops
$492United Airlines
Find Deal
Mon, Feb 2 - Wed, Feb 11
United Airlines Logo
6:00 am - 9:20 amONT-LIS
19h 20m2 stops
United Airlines Logo
6:10 am - 8:58 pmLIS-ONT
22h 48m2 stops
$495United Airlines
Find Deal
Tue, Jan 13 - Wed, Jan 21
Air Canada Logo
9:35 pm - 9:20 amONT-LIS
27h 45m2 stops
Air Canada Logo
11:00 am - 12:32 pmLIS-ONT
33h 32m2 stops
$496Air Canada
Find Deal
Sat, Nov 29 - Wed, Dec 10
Delta Logo
7:30 am - 3:10 pmONT-LIS
23h 40m2 stops
Delta Logo
5:00 am - 9:07 pmLIS-ONT
24h 07m2 stops
$500Delta
Find Deal
Tue, Jan 6 - Thu, Jan 15
Delta Logo
7:05 am - 8:00 amONT-LIS
16h 55m2 stops
Delta Logo
11:15 am - 10:00 amLIS-ONT
30h 45m2 stops
$510Delta
Find Deal
Wed, Dec 10 - Wed, Dec 24
British Airways Logo
10:57 am - 4:05 pmONT-FAO
21h 08m2 stops
British Airways Logo
11:10 am - 9:56 pmFAO-ONT
42h 46m2 stops
$1,091British Airways
Find Deal
Thu, Apr 2 - Mon, Apr 6
British Airways Logo
3:09 pm - 5:50 pmONT-FAO
42h 41m2 stops
British Airways Logo
11:10 am - 11:40 pmFAO-ONT
44h 30m2 stops
$1,099British Airways
Find Deal
Thu, Apr 2 - Mon, Apr 6
Iberia Logo
10:58 am - 11:45 amONT-OPO
16h 47m2 stops
Iberia Logo
8:20 am - 10:48 pmOPO-ONT
22h 28m2 stops
$4,958Iberia
Find Deal
Fri, Jan 9 - Wed, Jan 21
Iberia Logo
10:58 am - 11:45 amONT-OPO
16h 47m2 stops
Iberia Logo
8:20 am - 10:49 pmOPO-ONT
22h 29m2 stops
$5,883Iberia
Find Deal
Fri, Jan 9 - Tue, Feb 3

Air Canada flights from Ontario to Portugal

Our best Air Canada deals on Ontario to Portugal flight tickets
Air Canada
Dec 9
ONT5:05 amOntario
20h 15m
2 stops
LIS9:20 amLisbon Humberto Delgado
Dec 24
LIS11:00 amLisbon Humberto Delgado
42h 07m
2 stops
ONT9:07 pmOntario
$489
Find similar
Air Canada
Nov 29
ONT9:35 pmOntario
27h 45m
2 stops
LIS9:20 amLisbon Humberto Delgado
Dec 10
LIS11:00 amLisbon Humberto Delgado
33h 32m
2 stops
ONT12:32 pmOntario
$496
Find similar

Delta flights from Ontario to Portugal

Our best Delta deals on Ontario to Portugal flight tickets
Delta
Jan 6
ONT7:30 amOntario
23h 40m
2 stops
LIS3:10 pmLisbon Humberto Delgado
Jan 15
LIS5:00 amLisbon Humberto Delgado
24h 07m
2 stops
ONT9:07 pmOntario
$500
Find similar
Delta
Dec 10
ONT7:05 amOntario
16h 55m
2 stops
LIS8:00 amLisbon Humberto Delgado
Dec 24
LIS11:15 amLisbon Humberto Delgado
30h 45m
2 stops
ONT10:00 amOntario
$510
Find similar
Delta
Dec 10
ONT7:05 amOntario
16h 55m
2 stops
LIS8:00 amLisbon Humberto Delgado
Dec 23
LIS11:15 amLisbon Humberto Delgado
54h 45m
2 stops
ONT10:00 amOntario
$521
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Ontario to Portugal 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 October 28, 2025.
Use the filters below to find and compare flights from Ontario to Portugal that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

OntarioLisbon

ONT - LIS

ONTLIS

Ontario

Tue 12/9

5:05 am-9:20 am

2 stops20h 15m

Lisbon Humberto Delgado

Wed 12/24

11:00 am-9:07 pm

2 stops42h 07m

$489

OntarioLisbon

ONT - LIS

ONTLIS

Ontario

Mon 2/2

1:53 pm-9:20 am

2 stops35h 27m

Lisbon Humberto Delgado

Wed 2/11

5:00 am-12:38 pm

2 stops39h 38m

$492

OntarioLisbon

ONT - LIS

ONTLIS

Ontario

Tue 1/13

6:00 am-9:20 am

2 stops19h 20m

Lisbon Humberto Delgado

Wed 1/21

6:10 am-8:58 pm

2 stops22h 48m

$495

OntarioLisbon

ONT - LIS

ONTLIS

Ontario

Sat 11/29

9:35 pm-9:20 am

2 stops27h 45m

Lisbon Humberto Delgado

Wed 12/10

11:00 am-12:32 pm

2 stops33h 32m

$496

OntarioLisbon

ONT - LIS

ONTLIS

Ontario

Tue 1/6

7:30 am-3:10 pm

2 stops23h 40m

Lisbon Humberto Delgado

Thu 1/15

5:00 am-9:07 pm

2 stops24h 07m

$500

OntarioLisbon

ONT - LIS

ONTLIS

Ontario

Wed 12/10

7:05 am-8:00 am

2 stops16h 55m

Lisbon Humberto Delgado

Wed 12/24

11:15 am-10:00 am

2 stops30h 45m

$510

OntarioFaro

ONT - FAO

ONTFAO

Ontario

Thu 4/2

10:57 am-4:05 pm

2 stops21h 08m

Faro

Mon 4/6

11:10 am-9:56 pm

2 stops42h 46m

$1,091

OntarioFaro

ONT - FAO

ONTFAO

Ontario

Thu 4/2

3:09 pm-5:50 pm

2 stops42h 41m

Faro

Mon 4/6

11:10 am-11:40 pm

2 stops44h 30m

$1,099

OntarioPorto

ONT - OPO

ONTOPO

Ontario

Fri 1/9

10:58 am-11:45 am

2 stops16h 47m

Porto

Wed 1/21

8:20 am-10:48 pm

2 stops22h 28m

$4,958

OntarioPorto

ONT - OPO

ONTOPO

Ontario

Fri 1/9

10:58 am-11:45 am

2 stops16h 47m

Porto

Tue 2/3

8:20 am-10:49 pm

2 stops22h 29m

$5,883

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Portugal from

How to get the cheapest flight ticket from Ontario to Portugal

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 Portugal?

According to our data, Tuesday is the cheapest day to fly to Portugal from Ontario. The lowest ticket price found for a Tuesday departure recently was $752. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. The most expensive day to fly to Portugal is Saturday, with ticket prices averaging around $1,451.

What is the cheapest time of day to depart on your flight to Portugal?

Our most recent data shows that the best time of day to fly to Portugal is in the afternoon. Flights from Ontario to Portugal during this time can be as low as $1,054. At noon is when there is more demand to fly to Portugal, so prices are often more expensive at around $1,230 per ticket.

Cheap Ontario to Portugal flight deals and tips

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

Direct flights

None
There are no direct flights from Ontario to Portugal. There are no popular flight routes from Ontario to Portugal.
Search flight deals

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

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

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

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

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Ontario Airport to Portugal.

  • What documentation or ID do you need to fly to Portugal?

    The travel and health documents you'll need for your trip to Portugal 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 Portugal. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Best airlines flying from Ontario to Portugal

Compare and see reviews for airlines that fly from Ontario to Portugal with momondo
Airline
Rating
Free Cancellation
Price
United AirlinesPriceFrom $515Free CancellationRating
7.4
9,001 reviews
Search United Airlines flights
DeltaPriceFrom $582Free CancellationRating
7.9
7,994 reviews
Search Delta flights

Why use momondo?

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

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

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

All flight searches from Ontario to Portugal on momondo can be filtered to show those which offer flexible booking policies.

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

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Ontario to Portugal.

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

If you are simply researching potential flights to Portugal, momondo offers a useful price alert feature which will track prices for flights to Portugal from Ontario and alert you when they change.

An easier way to manage your Portugal trip

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Find better results for your trip to Portugal

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Popular flights according to clicks in the last 7 days on momondo
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