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

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

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

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Ontario Airport to Porto Airport.

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

The necessary travel and health documents for your Porto Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

$266 Cheap Flights from Ontario to Porto in 2026

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Find the cheapest flights from Ontario to Porto

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8:00 am - 9:30 am

ONT

OPO

17h 30m

2 stops

6:00 am - 8:50 pm

OPO

ONT

21h 50m

2 stops

$493United Airlines

Tue, Mar 3 - Tue, Mar 10

6:00 am - 10:30 am

ONT

OPO

20h 30m

2 stops

5:00 am - 5:12 pm

OPO

ONT

19h 12m

2 stops

$495Delta

Mon, Mar 2 - Fri, Mar 13

6:09 am - 9:30 am

ONT

OPO

19h 21m

2 stops

6:00 am - 10:18 pm

OPO

ONT

23h 18m

2 stops

$591United Airlines

Wed, Mar 4 - Wed, Mar 11

6:00 am - 10:30 am

ONT

OPO

20h 30m

2 stops

4:10 pm - 4:28 pm

OPO

ONT

31h 18m

2 stops

$598Multiple Airlines

Mon, Mar 2 - Mon, Mar 16

7:00 am - 9:45 am

ONT

OPO

18h 45m

2 stops

6:00 am - 8:36 pm

OPO

ONT

22h 36m

2 stops

$620United Airlines

Sat, Apr 25 - Thu, May 14

7:00 am - 9:45 am

ONT

OPO

18h 45m

2 stops

6:00 am - 10:30 pm

OPO

ONT

24h 30m

2 stops

$655United Airlines

Tue, Apr 28 - Thu, May 14

6:05 am - 9:45 am

ONT

OPO

19h 40m

2 stops

6:00 am - 10:59 pm

OPO

ONT

24h 59m

2 stops

$656United Airlines

Tue, Apr 28 - Tue, May 19

10:59 am - 7:30 pm

ONT

OPO

24h 31m

2 stops

9:25 pm - 9:59 pm

OPO

ONT

32h 34m

2 stops

$673British Airways

Tue, Apr 28 - Sun, May 17

6:00 am - 9:30 am

ONT

OPO

19h 30m

2 stops

12:30 pm - 10:57 pm

OPO

ONT

18h 27m

2 stops

$689United Airlines

Sun, Feb 22 - Wed, Mar 4

5:15 am - 9:30 am

ONT

OPO

20h 15m

2 stops

6:00 am - 10:57 pm

OPO

ONT

23h 57m

2 stops

$690United Airlines

Thu, Mar 5 - Sat, Mar 14

British Airways flights from Ontario to Porto

Our best British Airways deals on Ontario to Porto flight tickets

British Airways

Apr 28

ONT10:59 amOntario

24h 31m

2 stops

OPO7:30 pmPorto

May 17

OPO9:25 pmPorto

32h 34m

2 stops

ONT9:59 pmOntario

$673

British Airways

May 4

ONT2:08 pmOntario

21h 42m

2 stops

OPO7:50 pmPorto

May 20

OPO8:20 amPorto

23h 26m

2 stops

ONT11:46 pmOntario

$753

British Airways

Apr 26

ONT2:08 pmOntario

22h 12m

2 stops

OPO8:20 pmPorto

May 15

OPO12:25 pmPorto

19h 21m

2 stops

ONT11:46 pmOntario

$783

Iberia flights from Ontario to Porto

Our best Iberia deals on Ontario to Porto flight tickets

Iberia

Mar 1

ONT6:00 amOntario

17h 40m

2 stops

OPO7:40 amPorto

Mar 9

OPO4:40 pmPorto

24h 26m

2 stops

ONT10:06 amOntario

$697

Iberia

Mar 1

ONT6:00 amOntario

17h 40m

2 stops

OPO7:40 amPorto

Mar 9

OPO8:40 pmPorto

24h 08m

2 stops

ONT1:48 pmOntario

$710

Iberia

May 14

ONT2:08 pmOntario

33h 32m

2 stops

OPO7:40 amPorto

May 23

OPO8:20 amPorto

23h 39m

2 stops

ONT11:59 pmOntario

$853

Fly from

Fly to

Route

Depart

Return

Price

OntarioPorto

ONT - OPO

ONTOPO

Ontario

Tue 3/3

8:00 am-9:30 am

2 stops17h 30m

Porto

Tue 3/10

6:00 am-8:50 pm

2 stops21h 50m

$493

OntarioPorto

ONT - OPO

ONTOPO

Ontario

Mon 3/2

6:00 am-10:30 am

2 stops20h 30m

Porto

Fri 3/13

5:00 am-5:12 pm

2 stops19h 12m

$495

OntarioPorto

ONT - OPO

ONTOPO

Ontario

Wed 3/4

6:09 am-9:30 am

2 stops19h 21m

Porto

Wed 3/11

6:00 am-10:18 pm

2 stops23h 18m

$591

OntarioPorto

ONT - OPO

ONTOPO

Ontario

Mon 3/2

6:00 am-10:30 am

2 stops20h 30m

Porto

Mon 3/16

4:10 pm-4:28 pm

2 stops31h 18m

$598

OntarioPorto

ONT - OPO

ONTOPO

Ontario

Sat 4/25

7:00 am-9:45 am

2 stops18h 45m

Porto

Thu 5/14

6:00 am-8:36 pm

2 stops22h 36m

$620

OntarioPorto

ONT - OPO

ONTOPO

Ontario

Tue 4/28

7:00 am-9:45 am

2 stops18h 45m

Porto

Thu 5/14

6:00 am-10:30 pm

2 stops24h 30m

$655

OntarioPorto

ONT - OPO

ONTOPO

Ontario

Tue 4/28

6:05 am-9:45 am

2 stops19h 40m

Porto

Tue 5/19

6:00 am-10:59 pm

2 stops24h 59m

$656

OntarioPorto

ONT - OPO

ONTOPO

Ontario

Tue 4/28

10:59 am-7:30 pm

2 stops24h 31m

Porto

Sun 5/17

9:25 pm-9:59 pm

2 stops32h 34m

$673

OntarioPorto

ONT - OPO

ONTOPO

Ontario

Sun 2/22

6:00 am-9:30 am

2 stops19h 30m

Porto

Wed 3/4

12:30 pm-10:57 pm

2 stops18h 27m

$689

OntarioPorto

ONT - OPO

ONTOPO

Ontario

Thu 3/5

5:15 am-9:30 am

2 stops20h 15m

Porto

Sat 3/14

6:00 am-10:57 pm

2 stops23h 57m

$690

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 Ontario to Porto

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 Ontario to Porto?

United Airlines is the most popular carrier operating from Ontario to Porto

What airlines fly to Porto?

TAP AIR PORTUGAL, United Airlines and Delta are the top three most popular airlines that fly to Porto from Ontario according to our data. TAP AIR PORTUGAL is the first choice among our users, with 33% of people opting to fly with this airline when traveling to Porto. Keep in mind that there are 12 different airlines that fly to Porto on a routine basis, so you have a few additional options to choose from.

When to book flights from Ontario to Porto

Are you open to changing your travel dates? Check out the ideal times to fly from Ontario to Porto according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Ontario to Porto (ONT to OPO) flight deals and tips

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

Fastest flight time	16h 24m
Direct flights	None

The fastest flight from Ontario to Porto takes 16h 24m

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

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How far is Ontario to Porto by plane?
The distance between Ontario and Porto is about 5556.9 mi. By plane, this route typically takes 16h 24m.
When did momondo last update prices for flights from Ontario Airport to Porto Airport?
Prices for flights from Ontario Airport to Porto Airport are updated daily.
How old do you have to be to fly from Ontario Airport to Porto Airport?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Ontario Airport to Porto Airport.
What documentation or ID do you need to fly to Porto Airport?
The necessary travel and health documents for your Porto Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Vila Nova de Gaia

Coimbra

Braga

Aveiro

Matosinhos

Esposende

Lamego

Guimarães

Espinho

Chaves

Pinhao

Arcos de Valdevez

Viseu

Ponte de Lima

Curia

Penafiel

Mesao Frio

Mira

Baiao

Why use momondo?

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

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Porto from Ontario.

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

Flights from Ontario to Porto with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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

Once you have performed a search for Ontario to Porto flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

If you are not ready to book a flight from Ontario to Porto now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Porto and let you know when they change.

An easier way to manage your Porto 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.

Start using Trips

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Cheap flights from Ontario to Porto from $266

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 Porto departing on 8/2. 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 Ontario to Porto

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How to get the cheapest flight ticket from Ontario to Porto

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

United Airlines is the most popular carrier operating from Ontario to Porto

What airlines fly to Porto?

When to book flights from Ontario to Porto

Cheap Ontario to Porto (ONT to OPO) flight deals and tips

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

Fastest flight time

Direct flights

How far is Ontario to Porto by plane?

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

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

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

Traveling to a place near Porto?

Why use momondo?

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

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

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

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

An easier way to manage your Porto 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 Portugal

Airports servicing Portugal

Fly your favorite airline to Porto

Airlines are sorted and displayed according to clicks in the past 7 days on momondo

Cabin classes currently available on flights to Porto

List of cabin classes available on flights landing in Porto. Availability may vary depending on flight origin and airline.

Popular cities in Portugal

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

Fly to other destinations from Ontario

According to popular flight searches on momondo this year

Complete your trip to Porto

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