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$485+ Cheap flights from Ontario (ONT) to Lisbon (LIS)

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 7/24. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — LIS
Apr 27 — May 41
Sun 4/27
Sun 5/4
1 adult, Economy
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Cheap flight deals from Ontario to Lisbon

Discover tips and strategies to find the most affordable flight options for your journey from Ontario (ONT) to Lisbon (LIS). 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 April 22, 2025.

Most accurate provider

AranGrant
3 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$827
(United Airlines)

One-way from

$485
(United Airlines)

Popular in

February

Cheapest in

March

Average price

$1,150
Provider with most accurate pricing for Ontario-Lisbon Humberto Delgado flight deals.
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Provider most trusted by Cheapflights users for Ontario-Lisbon Humberto Delgado flights.
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From Ontario to Lisbon Humberto Delgado
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One-way flight from Ontario to Lisbon Humberto Delgado
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Highest demand for flights based on searches. 7% potential increase in price ($103 potential increase over avg. RT price).
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Cheapest flight prices on average. 10% potential price decrease ($115 potential savings vs. average RT price).
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Average for round-trip flights in April 2025
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Find flight deals from Ontario to Lisbon

Cheapest flights from Ontario to Lisbon
Explore the most affordable flight options available from Ontario to Lisbon. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 22, 2025.

This United Airlines deal was found by Cheapflights users on 4/22. 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 10/116:38 pmONT - LIS
2 stops54h 42mUnited Airlines
Fri 11/2110:15 amLIS - ONT
2 stops20h 20mUnited Airlines
Deal found 4/22$654
This Justfly.com deal was found by Cheapflights users on 4/22. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/195:10 amONT - LIS
2 stops46h 00mAir Canada
Sun 10/2611:00 amLIS - ONT
2 stops40h 17mAir Canada
Deal found 4/22$766
This Kiwi.com deal was found by Cheapflights users on 4/21. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/412:39 pmONT - LIS
2 stops37h 16mMultiple Airlines
Mon 6/99:55 amLIS - ONT
1 stop21h 44mMultiple Airlines
Deal found 4/21$1,151
This Iberia deal was found by Cheapflights users on 4/21. 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 5/302:44 pmONT - LIS
2 stops17h 21mIberia
Mon 6/912:30 pmLIS - ONT
2 stops18h 32mIberia
Deal found 4/21$1,935
This British Airways deal was found by Cheapflights users on 4/22. 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.
Fri 6/612:49 pmONT - LIS
2 stops18h 46mBritish Airways
Sun 6/157:20 amLIS - ONT
2 stops22h 54mBritish Airways
Deal found 4/22$16,189

Cheapflights Fare Finder

Customize your flight search to find flights from Ontario to Lisbon 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 April 22, 2025.
Use the filters below to find and compare flights from Ontario to Lisbon that are best for you.

Fly from

Ontario

Fly to

Lisbon

Route

Depart

Return

Price

OntarioLisbon

ONT - LIS

ONTLIS

Ontario

Sat 10/11

6:38 pm-9:20 am

2 stops54h 42m

Lisbon Humberto Delgado

Fri 11/21

10:15 am-10:35 pm

2 stops20h 20m

$654

OntarioLisbon

ONT - LIS

ONTLIS

Ontario

Sun 10/19

5:10 am-11:10 am

2 stops46h 00m

Lisbon Humberto Delgado

Sun 10/26

11:00 am-8:17 pm

2 stops40h 17m

$766

OntarioLisbon

ONT - LIS

ONTLIS

Ontario

Wed 6/4

12:39 pm-9:55 am

2 stops37h 16m

Lisbon Humberto Delgado

Mon 6/9

9:55 am-11:39 pm

1 stop21h 44m

$1,151

OntarioLisbon

ONT - LIS

ONTLIS

Ontario

Fri 5/30

2:44 pm-4:05 pm

2 stops17h 21m

Lisbon Humberto Delgado

Mon 6/9

12:30 pm-11:02 pm

2 stops18h 32m

$1,935

OntarioLisbon

ONT - LIS

ONTLIS

Ontario

Fri 6/6

12:49 pm-3:35 pm

2 stops18h 46m

Lisbon Humberto Delgado

Sun 6/15

7:20 am-10:14 pm

2 stops22h 54m

$16,189

OntarioLisbon

ONT - LIS

ONTLIS

Ontario

Thu 7/24

5:05 am-9:20 am

2 stops20h 15m

$485

OntarioLisbon

ONT - LIS

ONTLIS

Ontario

Sat 5/24

6:34 pm-9:20 am

2 stops30h 46m

$695

OntarioLisbon

ONT - LIS

ONTLIS

Ontario

Thu 5/22

10:40 pm-9:05 am

2 stops26h 25m

$971

OntarioLisbon

ONT - LIS

ONTLIS

Ontario

Fri 5/30

2:44 pm-4:05 pm

2 stops17h 21m

$1,133

OntarioLisbon

ONT - LIS

ONTLIS

Ontario

Mon 6/16

6:58 pm-5:55 am

3 stops50h 57m

$1,568

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/22

Compare providers for flights from Ontario to Lisbon

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Ontario to Lisbon in April.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*2 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Ontario-Lisbon flights, users find the pricing of AranGrant to be most consistent on Cheapflights vs. AranGrant Users can find the same prices on Ontario-Lisbon flight deals on Cheapflights vs. AranGrant >95% of the time. Price accuracy is based on data collected from Ontario-Lisbon flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Ontario-Lisbon flights, Cheapflights users trust AranGrant the most. AranGrant has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Ontario-Lisbon flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Ontario to Lisbon

Have a flexible travel schedule? Discover the best time to fly to Lisbon 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.

Cheapflights Insights

Everything you need to know about your flight from Ontario to Lisbon

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

Currently, January is the cheapest month in which you can book a flight from Ontario to Lisbon (average of $612). Flying from Ontario to Lisbon in June is currently the most expensive (average of $1,203). 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.

What is the cheapest time of day to fly from ONT to LIS?

Find hourly flight availability from Ontario to Lisbon. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated April 22, 2025.

It’s optimal to fly from Ontario to Lisbon in the afternoon. By choosing this option you can save up to 15% on the cost of your flight, compared to a flight at noon.

Rainfall in Lisbon by month

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

In terms of precipitation, rainfall in Lisbon ranges from 0.2 - 4.8 inches per month. December is typically the wettest month, when rainfall can reach 4.8 in. July is typically the driest time to visit Lisbon when rainfall is around 0.2 in.

Temperature in Lisbon by month

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

If weather is an important factor for your trip to Lisbon, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 51.8 F).

Reviews of airlines servicing Lisbon

Get insights into the airlines that provide service to Lisbon. 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 Lisbon. Reviews last updated April 22, 2025.
See what other customers who have flown with KLM, United Airlines and American Airlines from Ontario to Lisbon have to say. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
KLM
7.8
Good
1,331 reviews

Overall

7.8

Food

7.3

Crew

8.4

Boarding

7.8

Comfort

7.7

Entertainment

7.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Mar 2025

LBA - AMS

Overall, the flight from Leeds Bradford to Amsterdam was at expected. The crew were efficient at boarding and professional on board. The only issue was extremely slow check in at Leeds Bradford which was very frustrating.
KLM
7.8
Good
1,331 reviews
KLM
7.8
Good
1,331 reviews

Overall

7.8

Food

7.3

Crew

8.4

Boarding

7.8

Comfort

7.7

Entertainment

7.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Mar 2025

LBA - AMS

Overall, the flight from Leeds Bradford to Amsterdam was at expected. The crew were efficient at boarding and professional on board. The only issue was extremely slow check in at Leeds Bradford which was very frustrating.
United Airlines
7.4
Good
8,683 reviews
KLM
7.8
Good
1,331 reviews

Overall

7.8

Food

7.3

Crew

8.4

Boarding

7.8

Comfort

7.7

Entertainment

7.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Mar 2025

LBA - AMS

Overall, the flight from Leeds Bradford to Amsterdam was at expected. The crew were efficient at boarding and professional on board. The only issue was extremely slow check in at Leeds Bradford which was very frustrating.
American Airlines
7.2
Good
10,000 reviews
KLM
7.8
Good
1,331 reviews

Overall

7.8

Food

7.3

Crew

8.4

Boarding

7.8

Comfort

7.7

Entertainment

7.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Mar 2025

LBA - AMS

Overall, the flight from Leeds Bradford to Amsterdam was at expected. The crew were efficient at boarding and professional on board. The only issue was extremely slow check in at Leeds Bradford which was very frustrating.
Air Canada
7.0
Good
9,180 reviews
KLM
7.8
Good
1,331 reviews

Overall

7.8

Food

7.3

Crew

8.4

Boarding

7.8

Comfort

7.7

Entertainment

7.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Mar 2025

LBA - AMS

Overall, the flight from Leeds Bradford to Amsterdam was at expected. The crew were efficient at boarding and professional on board. The only issue was extremely slow check in at Leeds Bradford which was very frustrating.
Iberia
7.0
Good
2,682 reviews
KLM
7.8
Good
1,331 reviews

Overall

7.8

Food

7.3

Crew

8.4

Boarding

7.8

Comfort

7.7

Entertainment

7.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Mar 2025

LBA - AMS

Overall, the flight from Leeds Bradford to Amsterdam was at expected. The crew were efficient at boarding and professional on board. The only issue was extremely slow check in at Leeds Bradford which was very frustrating.

Related info for your journey

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

  • What are the cheapest airlines flying from Ontario to Lisbon round-trip?

    Cheapflights users have booked flights from Ontario to Lisbon round-trip from $827. Other airlines that can offer you cheap pricing are British Airways, from $990, and Air Canada, from $1,153. United Airlines is priced at 32% lower than the current average price of a flight leaving 3 months from now.

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

    $485 is the cheapest one-way deal found within the past few days, from United Airlines. You may also be able to find cheap deals on Air Canada and American Airlines, with prices starting from $695 and $971, respectively.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Ontario to Lisbon 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 Ontario to Lisbon?

    Currently, January is the cheapest month in which you can book a flight from Ontario to Lisbon (average of $612). Flying from Ontario to Lisbon in June is currently the most expensive (average of $1,203). 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

Traveling to a place near Ontario?

Book flights to Ontario if you plan to visit one of these locations
Sintra
Beja
Costa da Caparica
Nazaré
Evora
Torres Vedras
Oeiras
Sesimbra
Fátima

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Top 4 airlines flying from Ontario to Lisbon

Discover the top 4 airlines that operate flights from Ontario to Lisbon. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated April 22, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$568Average$1,023FlexibilityNo cancel feeOn-time69%
Air CanadaCheapest$691Average$1,247FlexibilityNo cancel feeOn-time67%
DeltaCheapest$733Average$1,242FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$782Average$962FlexibilityNo cancel feeOn-time71%

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