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$499+ Cheap flights from Ontario (ONT) to Porto (OPO)

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 8/12. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — OPO
Jul 31 — Aug 71
From?
To?
Wed 7/31
Wed 8/7
1 adult, Economy
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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 26% on the cost of this flight compared to booking a flight leaving this week. We have found prices from $741 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as $1,049.

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 $1,007 per person but you can even find prices for as low as $467. The most expensive prices can be found in the month of July. Opting for a January flight can save you 23% on your journey compared to booking in July

What is the cheapest time of day to fly from ONT to 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 Ontario to Porto flights in July & August 2024

Find cheap flight options from Ontario to Porto specifically for the months of July and August 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 2,752,877 searches. Prices were last updated on July 26, 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.
This United Airlines deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/245:05 amONT - OPO
2 stops20h 40mUnited Airlines
Sat 8/316:00 amOPO - ONT
2 stops19h 56mUnited Airlines
Deal found 7/25$1,252
This United Airlines deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/106:00 amONT - OPO
2 stops19h 45mUnited Airlines
Wed 8/1412:10 pmOPO - ONT
2 stops37h 43mUnited Airlines
Deal found 7/25$1,309
This United Airlines deal was found by Cheapflights users on 7/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/166:00 amONT - OPO
2 stops16h 55mUnited Airlines
Sat 8/316:00 amOPO - ONT
2 stops19h 56mUnited Airlines
Deal found 7/24$1,346
This Iberia deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/182:38 pmONT - OPO
2 stops17h 17mIberia
Wed 10/238:15 amOPO - ONT
2 stops19h 00mIberia
Deal found 7/25$1,566
This Iberia deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/282:38 pmONT - OPO
2 stops17h 17mIberia
Wed 9/1112:25 pmOPO - ONT
2 stops18h 23mIberia
Deal found 7/25$1,728
This mytrip.com deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure mytrip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/2011:30 pmONT - OPO
3 stops35h 50mMultiple Airlines
Fri 10/257:05 amOPO - ONT
3 stops34h 58mMultiple Airlines
Deal found 7/25$2,386
This Booking.com deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/2610:48 amONT - OPO
2 stops16h 52mBritish Airways
Fri 8/212:25 pmOPO - ONT
2 stops19h 24mBritish Airways
Deal found 7/25$3,957
This British Airways deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/310:48 amONT - OPO
2 stops16h 52mMultiple Airlines
Sat 8/108:15 amOPO - ONT
2 stops18h 33mMultiple Airlines
Deal found 7/25$4,263
This British Airways deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/16:05 amONT - OPO
2 stops21h 40mBritish Airways
Mon 8/128:15 amOPO - ONT
2 stops22h 12mBritish Airways
Deal found 7/25$4,761

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 2,752,877 searches. Data last updated July 26, 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.
This United Airlines deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/310:35 amONT - OPO
2 stops20h 40mUnited Airlines
Sat 11/236:00 amOPO - ONT
2 stops24h 02mUnited Airlines
Deal found 7/25$673
This United deal was found by Cheapflights users on 7/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/206:00 amONT - OPO
2 stops19h 45mUnited Airlines
Sun 11/246:00 amOPO - ONT
2 stops24h 23mUnited Airlines
Deal found 7/26$692
This United Airlines deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/2410:49 amONT - OPO
2 stops20h 51mUnited Airlines
Thu 10/106:00 amOPO - ONT
2 stops24h 56mUnited Airlines
Deal found 7/25$824
This Iberia deal was found by Cheapflights users on 7/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/152:41 pmONT - OPO
2 stops17h 14mIberia
Thu 10/318:20 amOPO - ONT
2 stops22h 47mIberia
Deal found 7/26$903
This British Airways deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/2412:45 pmONT - OPO
2 stops22h 30mBritish Airways
Thu 10/1010:15 amOPO - ONT
2 stops41h 00mBritish Airways
Deal found 7/25$946
This Iberia deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/3111:01 amONT - OPO
2 stops16h 44mIberia
Fri 1/1012:25 pmOPO - ONT
2 stops19h 19mIberia
Deal found 7/25$1,018
This Iberia deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/252:38 pmONT - OPO
2 stops17h 17mIberia
Wed 10/212:25 pmOPO - ONT
2 stops18h 23mIberia
Deal found 7/25$1,178
This Iberia deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/132:41 pmONT - OPO
2 stops17h 14mIberia
Wed 10/2312:25 pmOPO - ONT
2 stops19h 34mIberia
Deal found 7/25$1,202
This United Airlines deal was found by Cheapflights users on 7/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/2510:39 amONT - OPO
2 stops20h 36mUnited Airlines
Tue 12/316:00 amOPO - ONT
2 stops24h 19mUnited Airlines
Deal found 7/26$1,203

Ontario to Porto flights leaving soon

Find last-minute flight options from Ontario to Porto for spontaneous travel. Discover available flights and compare prices based on user searches. Secure great deals and offers for spontaneous trips with quick booking options. Over the last 7 days, Cheapflights users made 2,752,877 searches. Data last updated July 26, 2024.
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.
This British Airways deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/310:48 amONT - OPO
2 stops16h 52mMultiple Airlines
Sat 8/108:15 amOPO - ONT
2 stops18h 33mMultiple Airlines
Deal found 7/25$4,263
This British Airways deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/16:05 amONT - OPO
2 stops21h 40mBritish Airways
Mon 8/128:15 amOPO - ONT
2 stops22h 12mBritish Airways
Deal found 7/25$4,761

One-way flights to Porto from Ontario

Search for one-way flight options from Ontario to Porto. Find affordable one-way fares based on user searches. Compare prices and availability to plan your one-way journey according to your preferred dates and budget. Over the last 7 days, Cheapflights users made 2,752,877 searches. Data last updated July 26, 2024.
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.
This Iberia deal was found by Cheapflights users on 7/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/1212:41 pmONT - OPO
2 stops19h 14mIberia
Deal found 7/24$499
This United Airlines deal was found by Cheapflights users on 7/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/16:20 pmONT - OPO
2 stops31h 25mUnited Airlines
Deal found 7/26$506
This Iberia deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/242:38 pmONT - OPO
2 stops17h 17mIberia
Deal found 7/25$545
This Iberia deal was found by Cheapflights users on 7/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/102:38 pmONT - OPO
2 stops17h 17mIberia
Deal found 7/24$549
This United Airlines deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/236:25 pmONT - OPO
2 stops31h 20mUnited Airlines
Deal found 7/25$609
This Turkish Airlines deal was found by Cheapflights users on 7/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/1111:45 pmONT - OPO
2 stops26h 30mMultiple Airlines
Deal found 7/24$862
This Turkish Airlines deal was found by Cheapflights users on 7/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/136:00 amONT - OPO
2 stops26h 00mMultiple Airlines
Deal found 7/24$942
This Iberia deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/232:38 pmONT - OPO
2 stops17h 17mIberia
Deal found 7/25$1,136
This Turkish Airlines deal was found by Cheapflights users on 7/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/911:45 pmONT - OPO
2 stops27h 30mMultiple Airlines
Deal found 7/24$1,150

Find flights from Ontario to Porto within your budget

Customize your flight search to find flights from Ontario to Porto 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, Cheapflights users made 2,752,877 searches. Data last updated July 26, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$673 - $2,267

Route

Depart

Return

Price

OntarioPorto

ONT - OPO

ONTOPO

Ontario

Sun 11/3

2 stops20h 40m

Porto

Sat 11/23

2 stops24h 02m

$673

OntarioPorto

ONT - OPO

ONTOPO

Ontario

Sun 10/20

2 stops19h 45m

Porto

Sun 11/24

2 stops24h 23m

$692

OntarioPorto

ONT - OPO

ONTOPO

Ontario

Tue 9/24

2 stops20h 51m

Porto

Thu 10/10

2 stops24h 56m

$824

OntarioPorto

ONT - OPO

ONTOPO

Ontario

Tue 10/15

2 stops17h 14m

Porto

Thu 10/31

2 stops22h 47m

$903

OntarioPorto

ONT - OPO

ONTOPO

Ontario

Tue 9/24

2 stops22h 30m

Porto

Thu 10/10

2 stops41h 00m

$946

OntarioPorto

ONT - OPO

ONTOPO

Ontario

Tue 12/31

2 stops16h 44m

Porto

Fri 1/10

2 stops19h 19m

$1,018

OntarioPorto

ONT - OPO

ONTOPO

Ontario

Wed 9/25

2 stops17h 17m

Porto

Wed 10/2

2 stops18h 23m

$1,178

OntarioPorto

ONT - OPO

ONTOPO

Ontario

Sun 10/13

2 stops17h 14m

Porto

Wed 10/23

2 stops19h 34m

$1,202

OntarioPorto

ONT - OPO

ONTOPO

Ontario

Mon 10/7

2 stops16h 50m

Porto

Thu 10/17

2 stops19h 00m

$2,267

Flights are sorted by cheapest first

Deals found on 7/25

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

Use this chart to determine the cheapest time to fly round-trip from Ontario to Porto. Price data was last updated on July 21, 2024.
Morning
Noon
Afternoon
Evening
All times are departure.
Travelers seeking maximum savings on their Ontario to Porto flight should consider departing on Tuesday mornings when fares are most often at their lowest. Tuesday mornings flights should be avoided if possible as fares are typically the most expensive at this time.
Search Deals

Best time to book a flight from Ontario to Porto

Have a flexible travel schedule? Discover the best time to fly to Porto from Ontario with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

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 July 26, 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.
United Airlines
7.4
Good
10,000 reviews

Entertainment

7.1

Overall

7.4

Food

6.7

Comfort

7.2

Crew

8.1

Boarding

7.7

Reviews

1 / 10

United has consistently been good. Every now and then there is a crew member that should probably retire, but most of them are excellent.

United Airlines
7.4
Good
10,000 reviews
United Airlines
7.4
Good
10,000 reviews

Entertainment

7.1

Overall

7.4

Food

6.7

Comfort

7.2

Crew

8.1

Boarding

7.7

Reviews

1 / 10

United has consistently been good. Every now and then there is a crew member that should probably retire, but most of them are excellent.

Iberia
7.0
Good
2,673 reviews
United Airlines
7.4
Good
10,000 reviews

Entertainment

7.1

Overall

7.4

Food

6.7

Comfort

7.2

Crew

8.1

Boarding

7.7

Reviews

1 / 10

United has consistently been good. Every now and then there is a crew member that should probably retire, but most of them are excellent.

British Airways
6.7
Okay
6,717 reviews
United Airlines
7.4
Good
10,000 reviews

Entertainment

7.1

Overall

7.4

Food

6.7

Comfort

7.2

Crew

8.1

Boarding

7.7

Reviews

1 / 10

United has consistently been good. Every now and then there is a crew member that should probably retire, but most of them are excellent.

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 $700 on Cheapflights?

    Yes, there are multiple flights from Ontario to Porto for under $700. The cheapest flight booked recently is on United Airlines for just $673, but on average you can expect to pay $1,292.

  • Are there last-minute flights available from Ontario to Porto for under $4,300?

    There are currently 2+ open flights from Ontario to Porto within the next 7 days for less than $4,300.

  • 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 7/26.

  • What is the cheapest month 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 $517). Flying from Ontario to Porto in June is currently the most expensive (average of $975). 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.

See more FAQs

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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.

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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.
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