When is the best time to book a flight from Ontario to Porto?

Currently, January is the cheapest month in which you can book a flight from Ontario to Porto (average of $523). Flying from Ontario to Porto in June is currently the most expensive (average of $1,011). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

How recently were the Ontario to Porto flight deals updated?

The Ontario to Porto flight deals you see on this page were last updated on 5/16.

Can I find flights from Ontario to Porto for under $1,000 on Cheapflights?

Yes, there are multiple flights from Ontario to Porto for under $1,000. The cheapest flight booked recently is on United Airlines for just $972, but on average you can expect to pay $1,132.

Are there last-minute flights available from Ontario to Porto for under $13,300?

There are currently 1+ open flights from Ontario to Porto within the next 7 days for less than $13,300.

What does ONT to OPO mean?

Ontario Airport is ONT and Porto Airport is OPO. These codes are created by the International Air Transport Association (IATA) and airlines use them to identify the departing and arrival airports in the flight routes they service.

Can I find deals for flights from Ontario to Porto that include extra baggage allowance?

The amount of baggage you can bring on your Ontario to Porto flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

Can I find deals on flights from Ontario to Porto with specific airlines?

Yes, Cheapflights allows you to browse and filter Ontario to Porto flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

Can I find deals for flights from Ontario to Porto that include hotel bookings?

Yes. In addition to deals on Ontario to Porto flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from Ontario to Porto?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Ontario to Porto.

Can I find deals for business class flights from Ontario to Porto?

Yes. Cheapflights offers flight deals from Ontario to Porto by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

Can I find deals for flights from Ontario to Porto that allow pets onboard?

Many airlines flying from Ontario to Porto offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

Can I find deals on last-minute flights from Ontario to Porto?

Yes, you can often find last-minute deals on Ontario to Porto flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

Flights from Ontario, CA to Porto, Portugal from $782

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How far in advance should I book a flight from Ontario to Porto?

To save on the cost of your flight from Ontario to Porto, book at least 12 days before your planned departure. Booking around this time can save you about 40% on the cost of this flight compared to booking a flight leaving this week. We have found prices from $698 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as $1,357.

What is the cheapest month to fly from Ontario to Porto?

January is one of the best times of the year to fly to Porto from Ontario. Prices for January average $1,049 per person but you can even find prices for as low as $504. The most expensive prices can be found in the month of June. Opting for a January flight can save you 33% on your journey compared to booking in June

When is the cheapest time to fly from Ontario to Porto (ONT - OPO)?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Ontario to Porto as you normally would.

Cheap United Airlines flights from Ontario to Porto

Consider these cheap United Airlines flights we've found departing from Ontario to Porto. Be sure to come back soon if the deals available don't appeal to you at this time.

Wed 6/55:15 amONT - OPO

2 stops17h 40mUnited Airlines

Mon 6/109:00 amOPO - ONT

2 stops19h 48mUnited Airlines

Deal found 5/15$972

Tue 7/165:20 amONT - OPO

2 stops17h 35mUnited Airlines

Thu 7/259:00 amOPO - ONT

2 stops20h 11mUnited Airlines

Deal found 5/15$1,007

Mon 6/105:15 amONT - OPO

2 stops20h 30mUnited Airlines

Sun 6/169:00 amOPO - ONT

2 stops19h 48mUnited Airlines

Deal found 5/16$1,048

Sun 10/136:00 amONT - OPO

2 stops19h 45mUnited Airlines

Wed 10/236:00 amOPO - ONT

2 stops19h 17mUnited Airlines

Deal found 5/15$1,055

Sat 6/155:15 amONT - OPO

2 stops20h 30mUnited Airlines

Sat 6/226:00 amOPO - ONT

2 stops24h 27mUnited Airlines

Deal found 5/16$1,063

Thu 10/105:15 amONT - OPO

2 stops20h 30mUnited Airlines

Thu 10/176:00 amOPO - ONT

2 stops19h 17mUnited Airlines

Deal found 5/15$1,132

Sat 9/285:15 amONT - OPO

2 stops20h 30mUnited Airlines

Sun 10/66:00 amOPO - ONT

2 stops36h 03mUnited Airlines

Deal found 5/15$1,147

Tue 7/165:20 amONT - OPO

2 stops17h 35mUnited Airlines

Thu 7/259:00 amOPO - ONT

2 stops21h 45mUnited Airlines

Deal found 5/16$1,198

Fri 10/45:15 amONT - OPO

2 stops20h 30mUnited Airlines

Fri 10/1812:10 pmOPO - ONT

2 stops18h 46mUnited Airlines

Deal found 5/15$1,207

Cheap Iberia flights from Ontario to Porto

Browse through some of the cheapest Iberia flights traveling from Ontario to Porto. Ensure the flight price, dates, time, and airline match your criteria before you book.

Tue 8/202:39 pmONT - OPO

2 stops17h 16mIberia

Thu 9/1212:20 pmOPO - ONT

2 stops19h 06mIberia

Deal found 5/16$993

Wed 6/122:44 pmONT - OPO

2 stops17h 11mIberia

Sat 6/228:15 amOPO - ONT

2 stops18h 42mIberia

Deal found 5/15$1,133

Mon 9/302:52 pmONT - OPO

2 stops17h 03mIberia

Thu 10/1012:20 pmOPO - ONT

2 stops19h 06mIberia

Deal found 5/15$1,178

Sat 10/192:52 pmONT - OPO

2 stops17h 03mIberia

Sat 10/2612:20 pmOPO - ONT

2 stops19h 06mIberia

Deal found 5/15$1,182

Sun 10/132:52 pmONT - OPO

2 stops17h 03mIberia

Wed 10/2312:25 pmOPO - ONT

2 stops19h 01mIberia

Deal found 5/15$1,185

Thu 6/202:44 pmONT - OPO

2 stops21h 11mIberia

Thu 7/44:35 pmOPO - ONT

2 stops58h 15mIberia

Deal found 5/15$1,299

Thu 7/48:10 amONT - OPO

2 stops39h 25mIberia

Wed 7/108:35 pmOPO - ONT

2 stops30h 15mIberia

Deal found 5/15$1,370

Thu 8/292:39 pmONT - OPO

2 stops17h 16mIberia

Thu 9/1212:20 pmOPO - ONT

2 stops19h 06mIberia

Deal found 5/14$1,485

Sat 6/156:00 amONT - OPO

2 stops29h 55mIberia

Sun 6/304:35 pmOPO - ONT

2 stops39h 24mIberia

Deal found 5/16$1,496

Cheap Ontario to Porto flights in May & June 2024

Listed are some of the best fares we've found on flights departing from Ontario to Porto in 2024. More deals are always being added, so be sure to check back regularly.

Wed 6/55:15 amONT - OPO

2 stops17h 40mUnited Airlines

Mon 6/109:00 amOPO - ONT

2 stops19h 48mUnited Airlines

Deal found 5/15$972

Mon 6/105:15 amONT - OPO

2 stops20h 30mUnited Airlines

Sun 6/169:00 amOPO - ONT

2 stops19h 48mUnited Airlines

Deal found 5/16$1,048

Sat 6/155:15 amONT - OPO

2 stops20h 30mUnited Airlines

Sat 6/226:00 amOPO - ONT

2 stops24h 27mUnited Airlines

Deal found 5/16$1,063

Wed 6/122:44 pmONT - OPO

2 stops17h 11mIberia

Sat 6/228:15 amOPO - ONT

2 stops18h 42mIberia

Deal found 5/15$1,133

Sun 6/22:13 pmONT - OPO

2 stops24h 02mKLM

Sat 6/84:20 pmOPO - ONT

2 stops33h 30mKLM

Deal found 5/15$1,188

Thu 6/202:44 pmONT - OPO

2 stops21h 11mIberia

Thu 7/44:35 pmOPO - ONT

2 stops58h 15mIberia

Deal found 5/15$1,299

Fri 6/145:15 amONT - OPO

2 stops20h 30mUnited Airlines

Fri 6/219:00 amOPO - ONT

2 stops19h 48mUnited Airlines

Deal found 5/15$1,362

Sat 6/156:00 amONT - OPO

2 stops29h 55mIberia

Sun 6/304:35 pmOPO - ONT

2 stops39h 24mIberia

Deal found 5/16$1,496

Thu 6/202:44 pmONT - OPO

2 stops17h 11mIberia

Tue 7/28:15 amOPO - ONT

2 stops18h 42mIberia

Deal found 5/15$1,558

Ontario to Porto 2024 flight deals

Listed are some of the best fares we've found on flights departing from Ontario to Porto in 2024. More deals are always being added, so be sure to check back regularly.

Thu 12/56:00 amONT - OPO

2 stops44h 30mKLM

Mon 12/911:15 amOPO - ONT

2 stops36h 57mKLM

Deal found 5/15$928

Wed 6/55:15 amONT - OPO

2 stops17h 40mUnited Airlines

Mon 6/109:00 amOPO - ONT

2 stops19h 48mUnited Airlines

Deal found 5/15$972

Tue 8/202:39 pmONT - OPO

2 stops17h 16mIberia

Thu 9/1212:20 pmOPO - ONT

2 stops19h 06mIberia

Deal found 5/16$993

Tue 7/165:20 amONT - OPO

2 stops17h 35mUnited Airlines

Thu 7/259:00 amOPO - ONT

2 stops20h 11mUnited Airlines

Deal found 5/15$1,007

Mon 6/105:15 amONT - OPO

2 stops20h 30mUnited Airlines

Sun 6/169:00 amOPO - ONT

2 stops19h 48mUnited Airlines

Deal found 5/16$1,048

Sun 10/136:00 amONT - OPO

2 stops19h 45mUnited Airlines

Wed 10/236:00 amOPO - ONT

2 stops19h 17mUnited Airlines

Deal found 5/15$1,055

Sat 6/155:15 amONT - OPO

2 stops20h 30mUnited Airlines

Sat 6/226:00 amOPO - ONT

2 stops24h 27mUnited Airlines

Deal found 5/16$1,063

Thu 8/2910:46 amONT - OPO

2 stops38h 49mBritish Airways

Wed 9/1112:25 pmOPO - ONT

2 stops19h 01mBritish Airways

Deal found 5/15$1,115

Thu 12/510:58 amONT - OPO

2 stops21h 02mIberia

Mon 12/98:40 pmOPO - ONT

2 stops35h 28mIberia

Deal found 5/14$1,119

Ontario to Porto flights leaving soon

Users seeking a last-minute flight from Ontario to Porto should consider booking one of these fares. Users should double check the flight they book to ensure it matches the day, time, and destination they're looking for.

Sat 5/252:50 pmONT - OPO

2 stops17h 05mIberia

Fri 5/3112:25 pmOPO - ONT

2 stops19h 31mIberia

Deal found 5/14$13,283

One-way flights to Porto from Ontario

Take a look at some of the best available options we've come across on one-way flights from Ontario to Porto. Those seeking round-trip flights from Ontario to Porto should utilize the search form at the the top of the page.

Wed 5/295:15 amONT - OPO

2 stops17h 40mUnited Airlines

Deal found 5/14$782

Wed 7/36:00 amONT - OPO

2 stops19h 45mUnited Airlines

Deal found 5/15$875

Sun 10/206:15 amONT - OPO

3 stops19h 30mUnited Airlines

Deal found 5/15$881

Thu 7/46:00 amONT - OPO

2 stops19h 45mUnited Airlines

Deal found 5/15$882

Tue 6/258:10 amONT - OPO

2 stops23h 45mAmerican Airlines

Deal found 5/15$888

Fri 9/1311:36 pmONT - OPO

2 stops27h 39mMultiple Airlines

Deal found 5/14$932

Fri 7/56:10 amONT - OPO

2 stops25h 45mAmerican Airlines

Deal found 5/15$988

Wed 6/2611:59 pmONT - OPO

2 stops31h 56mAmerican Airlines

Deal found 5/15$1,008

Wed 5/295:15 amONT - OPO

3 stops20h 30mUnited Airlines

Deal found 5/14$4,712

Find flights from Ontario to Porto within your budget

Fly from

Fly to

Budget

$972 - $1,506

Route

Depart

Return

Price

OntarioPorto

ONT - OPO

ONTOPO

Ontario

Wed 6/5

2 stops17h 40m

Porto

Mon 6/10

2 stops19h 48m

$972

OntarioPorto

ONT - OPO

ONTOPO

Ontario

Tue 8/20

2 stops17h 16m

Porto

Thu 9/12

2 stops19h 06m

$993

OntarioPorto

ONT - OPO

ONTOPO

Ontario

Tue 7/16

2 stops17h 35m

Porto

Thu 7/25

2 stops20h 11m

$1,007

OntarioPorto

ONT - OPO

ONTOPO

Ontario

Mon 6/10

2 stops20h 30m

Porto

Sun 6/16

2 stops19h 48m

$1,048

OntarioPorto

ONT - OPO

ONTOPO

Ontario

Thu 8/29

2 stops38h 49m

Porto

Wed 9/11

2 stops19h 01m

$1,115

OntarioPorto

ONT - OPO

ONTOPO

Ontario

Wed 6/12

2 stops17h 11m

Porto

Sat 6/22

2 stops18h 42m

$1,133

OntarioPorto

ONT - OPO

ONTOPO

Ontario

Tue 7/16

2 stops20h 10m

Porto

Thu 7/25

2 stops21h 42m

$1,171

OntarioPorto

ONT - OPO

ONTOPO

Ontario

Sun 6/2

2 stops24h 02m

Porto

Sat 6/8

2 stops33h 30m

$1,188

OntarioPorto

ONT - OPO

ONTOPO

Ontario

Mon 10/7

2 stops21h 03m

Porto

Wed 10/23

2 stops21h 45m

$1,506

Flights are sorted by cheapest first

Deals found on 5/15

No data available for this route at this time. Please check back soon.

Reviews of airlines servicing Porto

Read reviews from past customers who have flown United Airlines, Iberia and British Airways from Ontario to Porto. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

Delta

8.0

Very good

10,673 reviews

Check prices

Reviews

1 / 10

Not sufficient leg room and three seats are very tigh.t on 737 in economy main cabin

Delta

8.0

Very good

10,673 reviews

Delta

8.0

Very good

10,673 reviews

Check prices

Reviews

1 / 10

Not sufficient leg room and three seats are very tigh.t on 737 in economy main cabin

KLM

7.9

Good

1,568 reviews

Delta

8.0

Very good

10,673 reviews

Check prices

Reviews

1 / 10

Not sufficient leg room and three seats are very tigh.t on 737 in economy main cabin

United Airlines

7.4

Good

10,924 reviews

Delta

8.0

Very good

10,673 reviews

Check prices

Reviews

1 / 10

Not sufficient leg room and three seats are very tigh.t on 737 in economy main cabin

American Airlines

7.3

Good

14,514 reviews

Delta

8.0

Very good

10,673 reviews

Check prices

Reviews

1 / 10

Not sufficient leg room and three seats are very tigh.t on 737 in economy main cabin

Iberia

7.1

Good

2,748 reviews

Delta

8.0

Very good

10,673 reviews

Check prices

Reviews

1 / 10

Not sufficient leg room and three seats are very tigh.t on 737 in economy main cabin

Related info for your journey

Can I find flights from Ontario to Porto for under $1,000 on Cheapflights?
Yes, there are multiple flights from Ontario to Porto for under $1,000. The cheapest flight booked recently is on United Airlines for just $972, but on average you can expect to pay $1,132.
Are there last-minute flights available from Ontario to Porto for under $13,300?
There are currently 1+ open flights from Ontario to Porto within the next 7 days for less than $13,300.
What does ONT to OPO mean?
Ontario Airport is ONT and Porto Airport is OPO. These codes are created by the International Air Transport Association (IATA) and airlines use them to identify the departing and arrival airports in the flight routes they service.
Can I find deals for flights from Ontario to Porto that include extra baggage allowance?
The amount of baggage you can bring on your Ontario to Porto flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.
Can I find deals on flights from Ontario to Porto with specific airlines?
Yes, Cheapflights allows you to browse and filter Ontario to Porto flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.
Can I find deals for flights from Ontario to Porto that include hotel bookings?
Yes. In addition to deals on Ontario to Porto flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Ontario to Porto?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Ontario to Porto.
Can I find deals for business class flights from Ontario to Porto?
Yes. Cheapflights offers flight deals from Ontario to Porto by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
Can I find deals for flights from Ontario to Porto that allow pets onboard?
Many airlines flying from Ontario to Porto offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.
Can I find deals on last-minute flights from Ontario to Porto?
Yes, you can often find last-minute deals on Ontario to Porto flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.
How recently were the Ontario to Porto flight deals updated?
The Ontario to Porto flight deals you see on this page were last updated on 5/16.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Alternative routes for Ontario to Porto
See prices for flight routes from nearby airports that may be better suited for you.

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Other flights to Porto
Explore flights to Porto departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on May 16, 2024.

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How does Cheapflights help users find flights from Ontario to Porto?

Cheapflights helps you search for flights from Ontario to Porto via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

Why should you use Cheapflights to find cheap flight tickets from Ontario to Porto?

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Ontario to Porto.

Can Cheapflights find flights from Ontario to Porto with no change fees?

Certainly. Search results for flights to Porto from Ontario shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

Can Cheapflights notify me if prices for flights from Ontario to Porto become cheaper?

Of course! You can now track prices for flights from Ontario to Porto and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

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Cheap flights from Ontario (ONT) to Porto (OPO) from $782

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 5/29. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.

How far in advance should I book a flight from Ontario to Porto?

What is the cheapest month to fly from Ontario to Porto?

When is the cheapest time to fly from Ontario to Porto (ONT - OPO)?

Cheap United Airlines flights from Ontario to Porto

Consider these cheap United Airlines flights we've found departing from Ontario to Porto. Be sure to come back soon if the deals available don't appeal to you at this time.

Cheap Iberia flights from Ontario to Porto

Browse through some of the cheapest Iberia flights traveling from Ontario to Porto. Ensure the flight price, dates, time, and airline match your criteria before you book.

Cheap Ontario to Porto flights in May & June 2024

Find cheap flight options from Ontario to Porto specifically for the months of May and June 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 2,637,452 searches. Prices were last updated on May 16, 2024.

Listed are some of the best fares we've found on flights departing from Ontario to Porto in 2024. More deals are always being added, so be sure to check back regularly.

Ontario to Porto 2024 flight deals

Discover exclusive flight deals for travel between Ontario and Porto in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 2,637,452 searches. Data last updated May 16, 2024.

Listed are some of the best fares we've found on flights departing from Ontario to Porto in 2024. More deals are always being added, so be sure to check back regularly.

Ontario to Porto flights leaving soon

Users seeking a last-minute flight from Ontario to Porto should consider booking one of these fares. Users should double check the flight they book to ensure it matches the day, time, and destination they're looking for.

One-way flights to Porto from Ontario

Take a look at some of the best available options we've come across on one-way flights from Ontario to Porto. Those seeking round-trip flights from Ontario to Porto should utilize the search form at the the top of the page.

Find flights from Ontario to Porto within your budget

Reviews of airlines servicing Porto

Get insights into the airlines that provide service to Porto. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Porto. Reviews last updated May 16, 2024.

Read reviews from past customers who have flown United Airlines, Iberia and British Airways from Ontario to Porto. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from Ontario to Porto. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

Can I find flights from Ontario to Porto for under $1,000 on Cheapflights?

Are there last-minute flights available from Ontario to Porto for under $13,300?

What does ONT to OPO mean?

Can I find deals for flights from Ontario to Porto that include extra baggage allowance?

Can I find deals on flights from Ontario to Porto with specific airlines?

Can I find deals for flights from Ontario to Porto that include hotel bookings?

How can I find direct flights from Ontario to Porto?

Can I find deals for business class flights from Ontario to Porto?

Can I find deals for flights from Ontario to Porto that allow pets onboard?

Can I find deals on last-minute flights from Ontario to Porto?

How recently were the Ontario to Porto flight deals updated?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Ontario to PortoSee prices for flight routes from nearby airports that may be better suited for you.

See prices for flight routes from nearby airports that may be better suited for you.

Popular flight searches

Check out other popular destinations found by fellow travelers in 2024

Search flights from Ontario to Porto by cabin class

Find flights from Ontario to Porto, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Book a flight to one of these trending destinations

User searches for flights to these destinations increased 20% or more in the past 90 days compared to other destinations

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Ontario to Porto?

Why should you use Cheapflights to find cheap flight tickets from Ontario to Porto?

Can Cheapflights find flights from Ontario to Porto with no change fees?

Can Cheapflights notify me if prices for flights from Ontario to Porto become cheaper?

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Alternative routes for Ontario to Porto
See prices for flight routes from nearby airports that may be better suited for you.