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Lisbon

$292+ 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 4/11. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — LIS
feb. 19 — feb. 261
jue. 2/19
jue. 2/26
1 adult, Economy
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Cheap 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 enero 20, 2026.

This oojo deal was found by Cheapflights users on 1/18. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 2/104:45 pm
ONT
-
LIS
2 stops21h 00m
British Airways
mar. 2/177:40 pm
LIS
-
ONT
2 stops34h 39m
British Airways
Deal found 1/18$457
This British Airways deal was found by Cheapflights users on 1/17. 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.
mar. 2/175:02 pm
ONT
-
LIS
2 stops37h 48m
British Airways
lun. 3/23:50 pm
LIS
-
ONT
2 stops38h 59m
British Airways
Deal found 1/17$474
This oojo deal was found by Cheapflights users on 1/17. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 4/1712:19 pm
ONT
-
LIS
2 stops37h 46m
British Airways
vie. 4/2411:05 am
LIS
-
ONT
2 stops18h 54m
British Airways
Deal found 1/17$482
This oojo deal was found by Cheapflights users on 1/19. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 4/144:52 pm
ONT
-
LIS
2 stops22h 08m
British Airways
mar. 5/126:45 pm
LIS
-
ONT
2 stops29h 37m
British Airways
Deal found 1/19$487
This oojo deal was found by Cheapflights users on 1/18. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 4/214:52 pm
ONT
-
LIS
2 stops22h 08m
British Airways
vie. 8/217:20 am
LIS
-
ONT
2 stops42h 57m
British Airways
Deal found 1/18$493
This United Airlines deal was found by Cheapflights users on 1/17. 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.
vie. 2/206:00 am
ONT
-
LIS
2 stops18h 10m
United Airlines
vie. 2/275:00 am
LIS
-
ONT
2 stops20h 41m
United Airlines
Deal found 1/17$495
This United Airlines deal was found by Cheapflights users on 1/19. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 1/205:05 am
ONT
-
LIS
2 stops20h 15m
United Airlines
mar. 1/275:00 am
LIS
-
ONT
2 stops20h 43m
United Airlines
Deal found 1/19$498
This United Airlines deal was found by Cheapflights users on 1/17. 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.
mié. 1/218:00 am
ONT
-
LIS
2 stops16h 10m
United Airlines
mié. 3/45:00 am
LIS
-
ONT
2 stops23h 50m
United Airlines
Deal found 1/17$499
This United Airlines deal was found by Cheapflights users on 1/18. 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.
jue. 2/196:00 am
ONT
-
LIS
2 stops18h 10m
United Airlines
sáb. 2/286:10 am
LIS
-
ONT
2 stops19h 31m
United Airlines
Deal found 1/18$501
This oojo deal was found by Cheapflights users on 1/18. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 2/285:02 pm
ONT
-
LIS
2 stops16h 53m
British Airways
sáb. 3/77:00 am
LIS
-
ONT
2 stops23h 49m
British Airways
Deal found 1/18$507
This United Airlines deal was found by Cheapflights users on 1/19. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 3/48:00 am
ONT
-
LIS
2 stops18h 15m
United Airlines
dom. 3/810:15 am
LIS
-
ONT
2 stops19h 03m
United Airlines
Deal found 1/19$512
This United Airlines deal was found by Cheapflights users on 1/20. 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.
mar. 4/286:05 am
ONT
-
LIS
2 stops18h 15m
United Airlines
mar. 5/511:25 am
LIS
-
ONT
2 stops19h 05m
United Airlines
Deal found 1/20$515

Find 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 enero 20, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$457
(oojo)

One-way from

$292
(United Airlines)

Popular in

June

Cheapest in

November

Average price

$766
Provider with most accurate pricing for Ontario-Lisbon Humberto Delgado flight deals.
Search Deals
Provider most trusted by Cheapflights users for Ontario-Lisbon Humberto Delgado flights.
Search Deals
From Ontario to Lisbon Humberto Delgado
Search Deals
One-way flight from Ontario to Lisbon Humberto Delgado
Search Deals
Highest demand for flights based on searches. 6% potential increase in price ($55 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($32 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

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 enero 20, 2026.
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

mar. 2/17

6:00 am-9:55 am

2 stops43h 55m

Lisbon Humberto Delgado

mié. 2/25

6:35 pm-10:07 pm

2 stops35h 32m

$474

OntarioLisbon

ONT - LIS

ONTLIS

Ontario

mar. 2/17

5:02 pm-2:50 pm

2 stops37h 48m

Lisbon Humberto Delgado

mar. 2/24

7:40 pm-10:49 pm

2 stops35h 09m

$474

OntarioLisbon

ONT - LIS

ONTLIS

Ontario

mié. 2/18

5:02 pm-9:50 pm

2 stops20h 48m

Lisbon Humberto Delgado

lun. 3/2

6:35 pm-10:49 pm

2 stops36h 14m

$474

OntarioLisbon

ONT - LIS

ONTLIS

Ontario

mié. 2/18

5:02 pm-9:50 pm

2 stops20h 48m

Lisbon Humberto Delgado

vie. 2/27

7:05 am-11:59 pm

2 stops24h 54m

$474

OntarioLisbon

ONT - LIS

ONTLIS

Ontario

mar. 2/17

5:02 pm-2:50 pm

2 stops37h 48m

Lisbon Humberto Delgado

jue. 2/26

6:35 pm-11:59 pm

2 stops37h 24m

$474

OntarioLisbon

ONT - LIS

ONTLIS

Ontario

mar. 2/17

6:00 am-9:55 am

2 stops43h 55m

Lisbon Humberto Delgado

vie. 2/27

7:05 am-10:29 pm

2 stops23h 24m

$474

OntarioLisbon

ONT - LIS

ONTLIS

Ontario

lun. 2/23

2:39 pm-9:55 pm

2 stops23h 16m

Lisbon Humberto Delgado

lun. 3/2

6:35 pm-10:49 pm

2 stops36h 14m

$474

OntarioLisbon

ONT - LIS

ONTLIS

Ontario

mié. 2/18

5:02 pm-9:50 pm

2 stops20h 48m

Lisbon Humberto Delgado

mar. 2/24

7:05 am-10:49 pm

2 stops23h 44m

$474

OntarioLisbon

ONT - LIS

ONTLIS

Ontario

vie. 4/17

12:19 pm-11:10 pm

2 stops26h 51m

Lisbon Humberto Delgado

vie. 5/1

7:20 am-9:59 pm

2 stops22h 39m

$482

OntarioLisbon

ONT - LIS

ONTLIS

Ontario

mar. 2/17

6:10 am-8:10 am

2 stops18h 00m

Lisbon Humberto Delgado

mié. 3/11

5:00 am-8:50 pm

2 stops22h 50m

$499

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/19

Showing 1-10 of 22 results
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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 January.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*1 star
AranGrantPrice Accuracy2 starsTrust Score*3 stars
OvagoPrice Accuracy2 starsTrust Score*2 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 FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Ontario-Lisbon flight deals on Cheapflights vs. FlightHub >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 $435). Flying from Ontario to Lisbon in June is currently the most expensive (average of $712). 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.

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 enero 20, 2026.
See what other customers who have flown with Delta and United Airlines from Ontario to Lisbon have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
8,080 reviews

Crew

8.5

Boarding

8.1

Overall

7.9

Entertainment

7.8

Food

7.2

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Delta
7.9
Good
8,080 reviews
Delta
7.9
Good
8,080 reviews

Crew

8.5

Boarding

8.1

Overall

7.9

Entertainment

7.8

Food

7.2

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
United Airlines
7.4
Good
9,183 reviews
Delta
7.9
Good
8,080 reviews

Crew

8.5

Boarding

8.1

Overall

7.9

Entertainment

7.8

Food

7.2

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

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.

  • How long is the flight from Ontario to Lisbon?

    A quick flight from Ontario to Lisbon can take about 43h 55m. British Airways provides one of the quickest options available for as low as $474. Airlines will cover a distance of 5634 mi.

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

    Cheapflights users have booked flights from Ontario to Lisbon round-trip from $568. Another airline that can offer you cheap pricing is Delta. United Airlines is priced at 31% lower than the current average price of a flight leaving 3 months from now.

  • 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 $435). Flying from Ontario to Lisbon in June is currently the most expensive (average of $712). 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 Lisbon?

Book flights to Lisbon if you plan to visit one of these locations
Fátima
Oeiras
Ericeira
Beja
Costa da Caparica
Torres Vedras
Nazaré
Sesimbra
Colares

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Alternative routes for Ontario to Lisbon

See prices for flight routes from nearby airports that may be better suited for you.
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Top 2 airlines flying from Ontario to Lisbon

Discover the top 2 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 enero 20, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$568Average$727FlexibilityNo cancel feeOn-time69%
DeltaCheapest$582Average$844FlexibilityNo cancel feeOn-timeN/A

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