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Ontario

$681+ Cheap flights from Portugal to Ontario (ONT)

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 1/18. Fares are subject to change and may not be available on all flights or dates of travel.
LIS — ONT
Dec 24 — Dec 311
Tue 12/24
Tue 12/31
1 adult, Economy
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Cheap flight deals from Portugal to Ontario

Discover tips and strategies to find the most affordable flight options for your journey from Portugal (PT0) to Ontario (ONT). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated December 19, 2024.

Round-trip from

$696
(Iberia)

One-way from

$681
(Iberia)
From Portugal to Ontario
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One-way flight from Portugal to Ontario
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Find flight deals from Portugal to Ontario

Cheapest flights from Portugal to Ontario
Explore the most affordable flight options available from Portugal to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 19, 2024.

This Delta deal was found by Cheapflights users on 12/19. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/215:30 amLIS - ONT
2 stops18h 48mDelta
Fri 12/275:30 amONT - LIS
2 stops25h 40mDelta
Deal found 12/19$906
This United Airlines deal was found by Cheapflights users on 12/18. 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 12/2010:15 amLIS - ONT
2 stops20h 45mUnited Airlines
Wed 1/110:39 amONT - LIS
2 stops15h 36mUnited Airlines
Deal found 12/18$1,086

Find flights from Portugal to Ontario within your budget

Customize your flight search to find flights from Portugal to Ontario 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 2,558,603 searches. Data last updated December 19, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

LisbonOntario

LIS - ONT

LISONT

Lisbon Humberto Delgado

Sun 1/19

12:30 pm-11:58 pm

2 stops19h 28m

Ontario

Sat 2/1

3:04 pm-4:05 pm

2 stops17h 01m

$696

LisbonOntario

LIS - ONT

LISONT

Lisbon Humberto Delgado

Sat 2/1

11:00 am-9:51 am

2 stops30h 51m

Ontario

Sat 2/8

6:15 am-8:10 am

2 stops17h 55m

$802

LisbonOntario

LIS - ONT

LISONT

Lisbon Humberto Delgado

Thu 2/6

11:00 am-8:29 pm

3 stops41h 29m

Ontario

Sat 2/15

7:40 pm-9:20 am

2 stops29h 40m

$805

LisbonOntario

LIS - ONT

LISONT

Lisbon Humberto Delgado

Fri 1/24

8:20 am-10:45 pm

2 stops22h 25m

Ontario

Sat 2/1

3:04 pm-4:05 pm

2 stops17h 01m

$3,543

FaroOntario

FAO - ONT

FAOONT

Faro

Tue 3/18

7:45 pm-4:23 pm

2 stops27h 38m

Ontario

Wed 3/26

7:00 am-9:35 am

2 stops19h 35m

$4,287

LisbonOntario

LIS - ONT

LISONT

Lisbon Humberto Delgado

Sat 1/18

8:20 am-10:45 pm

2 stops22h 25m

$681

LisbonOntario

LIS - ONT

LISONT

Lisbon Humberto Delgado

Sun 1/19

11:05 am-11:58 pm

2 stops20h 53m

$682

LisbonOntario

LIS - ONT

LISONT

Lisbon Humberto Delgado

Tue 6/17

5:55 am-10:37 pm

2 stops24h 42m

$890

LisbonOntario

LIS - ONT

LISONT

Lisbon Humberto Delgado

Sat 2/22

10:15 am-9:59 pm

2 stops19h 44m

$903

LisbonOntario

LIS - ONT

LISONT

Lisbon Humberto Delgado

Sat 12/28

9:00 pm-10:29 pm

3 stops33h 29m

$906

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/19

Showing 1-10 of 12 results
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Best time to book a flight from Portugal to Ontario

Have a flexible travel schedule? Discover the best time to fly to Ontario from Portugal 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.

Travel insights for flights from Portugal to Ontario

Get recent, data-driven insights about flights from Portugal to Ontario including ideal travel times, pricing trends, and more.

What is the cheapest month to book a flight from Portugal to Ontario?

Currently, September is the cheapest month in which you can book a flight from Portugal to Ontario (average of $236). Flying from Portugal to Ontario in December is currently the most expensive (average of $298). 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.

Rainfall in Ontario by month

Plan your trip to Ontario by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Ontario ranges from 0.1 - 3.4 inches per month. February is typically the wettest month, when rainfall can reach 3.4 in. June is typically the driest time to visit Ontario when rainfall is around 0.1 in.

Temperature in Ontario by month

Plan your trip to Ontario by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Ontario, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 78.8 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 53.6 F).

Reviews of airlines servicing Ontario

Get insights into the airlines that provide service to Ontario. 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 Ontario. Reviews last updated December 19, 2024.
Delta
8.0
Very good
8,600 reviews

Food

7.3

Overall

8.0

Comfort

8.0

Entertainment

7.9

Crew

8.6

Boarding

8.2

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Delta
8.0
Very good
8,600 reviews
Delta
8.0
Very good
8,600 reviews

Food

7.3

Overall

8.0

Comfort

8.0

Entertainment

7.9

Crew

8.6

Boarding

8.2

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

KLM
7.8
Good
1,349 reviews
Delta
8.0
Very good
8,600 reviews

Food

7.3

Overall

8.0

Comfort

8.0

Entertainment

7.9

Crew

8.6

Boarding

8.2

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Air France
7.4
Good
1,505 reviews
Delta
8.0
Very good
8,600 reviews

Food

7.3

Overall

8.0

Comfort

8.0

Entertainment

7.9

Crew

8.6

Boarding

8.2

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

United Airlines
7.4
Good
9,048 reviews
Delta
8.0
Very good
8,600 reviews

Food

7.3

Overall

8.0

Comfort

8.0

Entertainment

7.9

Crew

8.6

Boarding

8.2

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
8,600 reviews

Food

7.3

Overall

8.0

Comfort

8.0

Entertainment

7.9

Crew

8.6

Boarding

8.2

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Related info for your journey

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

  • What airport do you fly into for flights to Ontario from Portugal?

    If you book a flight to Ontario from Portugal, you will be flying to Ontario, which is the city’s only airport. Ontario (ONT) is located 3.1 mi from the center of Ontario.

  • What are the cheapest airlines to fly from Portugal to Ontario one-way?

    The cheapest airlines for a one-way flight from Portugal to Ontario are Iberia ($681), American Airlines ($682), and United Airlines ($903).

  • What are the most popular routes from Portugal to Ontario?

    The most popular route from Portugal to Ontario is Lisbon Humberto Delgado - Ontario. You may also consider Faro - Ontario or Ponta Delgada Nordela - Ontario.

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

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

  • How can I find direct flights from Portugal to Ontario?

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

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

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

  • What is the cheapest month to book a flight from Portugal to Ontario?

    Currently, September is the cheapest month in which you can book a flight from Portugal to Ontario (average of $236). Flying from Portugal to Ontario in December is currently the most expensive (average of $298). 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 Portugal to Ontario

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