What is the cheapest flight from Ontario to Porto?

In the last 3 days, the lowest price for a flight from Ontario to Porto was $531 for a one-way ticket and $802 for a round-trip. Visit our flight page for the latest deals!>/a>

Do I need a passport to fly between Ontario and Porto?

A passport is required to fly from Ontario to Porto. Visit our flight page for the latest deals!>/a>

Which airports will I be using when flying from Ontario to Porto?

When flying out of Ontario you will be using Ontario. You will be landing at Porto, also known as Porto. Visit our flight page for the latest deals!>/a>

Which aircraft models fly most regularly from Ontario to Porto?

We unfortunately don’t have that data for this specific route.

Which airline alliances offer flights from Ontario to Porto?

oneworld, Star Alliance, and SkyTeam are the airline alliances operating flights between Ontario and Porto, with oneworld being the most commonly used for this route.

How does KAYAK find such low prices on flights from Ontario to Porto?

KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Ontario to Porto. Visit our flight page for the latest deals!>/a>

How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Ontario to Porto?

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Porto from Ontario is likely to change within 7 days, so travelers know whether to wait or book now. Visit our flight page for the latest deals!>/a>

What is the Hacker Fare option on flights from Ontario to Porto?

Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Porto with an airline and back to Ontario with another airline. Booking your flights between Ontario and OPO can sometimes prove cheaper using this method. Visit our flight page for the latest deals!>/a>

What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Ontario to Porto?

Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Porto from Ontario up to 3 days before/after your preferred dates. You can then pick the flights that suit you best. Visit our flight page for the latest deals!>/a>

$531 CHEAP FLIGHTS from Ontario to Porto (ONT - OPO)

ONT - OPO

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Flights Deals

Cheap Flights from Ontario to Porto

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Ontario to Porto that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.

Round-trip

One-way

Last minute

Recent round-trip flight deals from Ontario to Porto

KAYAK's recommended round-trip deals from the most popular airlines that fly from Ontario to Porto.

Discover the best prices for you by selecting your travel dates on KAYAK.

6:10 am - 9:20 amONT-OPO

19h 10m2 stops

12:50 pm - 10:52 pmOPO-ONT

18h 02m2 stops

$802United Airlines

Find Deal

Wed, Jul 30 - Tue, Sep 30

7:00 am - 9:20 amONT-OPO

18h 20m2 stops

6:00 am - 8:33 pmOPO-ONT

22h 33m2 stops

$872United Airlines

Find Deal

Wed, Aug 20 - Sat, Aug 30

3:00 pm - 3:55 pmONT-OPO

16h 55m2 stops

12:20 pm - 11:36 pmOPO-ONT

19h 16m2 stops

$952Iberia

Find Deal

Wed, Sep 3 - Thu, Sep 25

3:00 pm - 3:55 pmONT-OPO

16h 55m2 stops

12:20 pm - 11:36 pmOPO-ONT

19h 16m2 stops

$1,047Iberia

Find Deal

Thu, Sep 11 - Tue, Sep 23

1:10 pm - 7:35 pmONT-OPO

22h 25m2 stops

6:15 am - 11:42 pmOPO-ONT

25h 27m2 stops

$1,095Delta

Find Deal

Wed, May 21 - Tue, May 27

1:10 pm - 10:15 pmONT-OPO

25h 05m2 stops

6:15 am - 4:17 pmOPO-ONT

18h 02m2 stops

$1,375Delta

Find Deal

Thu, May 22 - Tue, May 27

5:09 pm - 8:20 pmONT-OPO

19h 11m2 stops

9:10 pm - 5:45 pmOPO-ONT

28h 35m2 stops

$1,862British Airways

Find Deal

Sun, Sep 28 - Mon, Oct 13

2:34 pm - 7:55 pmONT-OPO

21h 21m2 stops

6:15 am - 9:37 pmOPO-ONT

23h 22m2 stops

$1,934

Find Deal

Tue, Jul 8 - Fri, Jul 11

2:44 pm - 3:55 pmONT-OPO

17h 11m2 stops

12:20 pm - 11:43 pmOPO-ONT

19h 23m2 stops

$3,054

Find Deal

Mon, May 12 - Tue, May 27

2:40 pm - 3:55 pmONT-OPO

17h 15m2 stops

12:20 pm - 11:02 pmOPO-ONT

18h 42m2 stops

$3,147British Airways

Find Deal

Fri, Jun 6 - Mon, Jun 9

Useful Info

KAYAK's insights & trends for Ontario to Porto flights

Get data-powered insights and trends into flights from Ontario to Porto to help you find the cheapest flights, the best time to fly and much more.

Which airlines provide the cheapest flights from Ontario to Porto?

In the past 3 days, the cheapest round-trip tickets from Ontario to Porto were found on United Airlines ($802) and Iberia ($952).

Find deals

Cheapest flight	$531

Flight from Ontario to Porto

When to book flights from Ontario to Porto

Are your dates flexible? Find out the best times to travel from Ontario to Porto based on our flight data from the last year. Discover the cheapest month and even day to fly.

Estimated round-trip price

KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

What is the cheapest flight from Ontario to Porto?
In the last 3 days, the lowest price for a flight from Ontario to Porto was $531 for a one-way ticket and $802 for a round-trip.
Do I need a passport to fly between Ontario and Porto?
A passport is required to fly from Ontario to Porto.
Which airports will I be using when flying from Ontario to Porto?
When flying out of Ontario you will be using Ontario. You will be landing at Porto, also known as Porto.
Which aircraft models fly most regularly from Ontario to Porto?
We unfortunately don’t have that data for this specific route.
Which airline alliances offer flights from Ontario to Porto?
oneworld, Star Alliance, and SkyTeam are the airline alliances operating flights between Ontario and Porto, with oneworld being the most commonly used for this route.
How does KAYAK find such low prices on flights from Ontario to Porto?
KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Ontario to Porto.
How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Ontario to Porto?
KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Porto from Ontario is likely to change within 7 days, so travelers know whether to wait or book now.
What is the Hacker Fare option on flights from Ontario to Porto?
Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Porto with an airline and back to Ontario with another airline. Booking your flights between Ontario and OPO can sometimes prove cheaper using this method.
What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Ontario to Porto?
Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Porto from Ontario up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Everything you need to know for your flight from Ontario to Porto

Airports

Cabin class

Complete your trip

Direct Flights

Flights to other cities

Origins

Other airports

Information on your arrival and departure airports

Porto (OPO)

Ontario (ONT)

ONT - OPO

$531 Find Cheap Flights from Ontario to Porto

KAYAK searches hundreds of travel sites at once for deals on flights to Porto

Cheap Flights from Ontario to Porto

Recent round-trip flight deals from Ontario to Porto

Recent one-way flight deals from Ontario to Porto

Recent last minute flight deals from Ontario to Porto

KAYAK's insights & trends for Ontario to Porto flights

Get data-powered insights and trends into flights from Ontario to Porto to help you find the cheapest flights, the best time to fly and much more.

Which airlines provide the cheapest flights from Ontario to Porto?

In the past 3 days, the cheapest round-trip tickets from Ontario to Porto were found on United Airlines ($802) and Iberia ($952).

Good to know

When to book flights from Ontario to Porto

FAQs for booking flights from Ontario to Porto

What is the cheapest flight from Ontario to Porto?

In the last 3 days, the lowest price for a flight from Ontario to Porto was $531 for a one-way ticket and $802 for a round-trip.

Do I need a passport to fly between Ontario and Porto?

A passport is required to fly from Ontario to Porto.

Which airports will I be using when flying from Ontario to Porto?

When flying out of Ontario you will be using Ontario. You will be landing at Porto, also known as Porto.

Which aircraft models fly most regularly from Ontario to Porto?

We unfortunately don’t have that data for this specific route.

Which airline alliances offer flights from Ontario to Porto?

oneworld, Star Alliance, and SkyTeam are the airline alliances operating flights between Ontario and Porto, with oneworld being the most commonly used for this route.

How does KAYAK find such low prices on flights from Ontario to Porto?

KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Ontario to Porto.

How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Ontario to Porto?

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Porto from Ontario is likely to change within 7 days, so travelers know whether to wait or book now.

What is the Hacker Fare option on flights from Ontario to Porto?

Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Porto with an airline and back to Ontario with another airline. Booking your flights between Ontario and OPO can sometimes prove cheaper using this method.

What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Ontario to Porto?

Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Porto from Ontario up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Everything you need to know for your flight from Ontario to Porto

Information on your arrival and departure airports

Cabin class types available on flights from Ontario to Porto

Complete your trip to Porto with a hotel stay or car rental

Find direct flights to and from Ontario and Porto

Flights to other popular destinations

Flights from domestic origins to Porto

Choose which airport to fly into in Porto