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

Cheapflights users have booked flights from Ontario to Lisbon round-trip from $816. Other airlines that can offer you cheap pricing are Delta, from $902, and Iberia, from $1,101. United Airlines is priced at 23% 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?

$544 is the cheapest one-way deal found within the past few days, from Delta. You may also be able to find cheap deals on United Airlines and Iberia, with prices starting from $608 and $621, respectively.

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

Travelers seeking maximum savings on their Ontario to Lisbon flight should consider departing on Tuesday mornings when fares are most often at their lowest. Saturday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

What are the most popular airlines that fly from Ontario to Lisbon?

American Airlines, Air Canada and Delta are the most popular airlines when flying from Ontario to Lisbon.

What is the cheapest day to fly round-trip from Ontario to Lisbon?

Leaving on a Monday is a viable option for saving on travel. Heavily demanded days of the week can typically drive up the prices you see. Booking your travel for a less competitive day can save up to 92% on the overall cost on flights from Ontario to Lisbon.

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

Find a great deal and save up to 32% by booking at least 25 days prior to your desired departure date, rather than waiting until the week of travel. According to our data, there are a number of flights available from Ontario to Lisbon within the next two weeks, with the cheapest ticket starting at $860.

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

Due to multiple factors, expect to potentially pay more when booking in June. For low rates, February can be a great choice for travel to Lisbon. Flights to Lisbon from Ontario in February are about $950 on average during February, but can be found for as low as $470.

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 FlightHub the most. FlightHub 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.

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.

$468+ Flights from Ontario to Lisbon

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1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

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Cheap flight deals from Ontario to Lisbon

Most accurate provider	FlightHub 3 stars
Most trusted provider	FlightHub 3 stars
Round-trip from	$816 (United Airlines)
One-way from	$468 (Mytrip)
Popular in	July
Cheapest in	February
Average price	$1,150

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.

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From Ontario to Lisbon Humberto Delgado

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One-way flight from Ontario to Lisbon Humberto Delgado

Search Deals

Highest demand for flights based on searches. 18% potential increase in price ($248 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 6% potential price decrease ($65 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 3, 2025.

Fri 11/79:55 amONT - LIS

2 stops23h 35mDelta

Fri 11/145:30 amLIS - ONT

2 stops26h 16mDelta

Deal found 4/2

$686

Sun 10/195:45 amONT - LIS

2 stops21h 25mUnited Airlines

Sun 10/2611:00 amLIS - ONT

2 stops40h 17mUnited Airlines

Deal found 4/1

$764

Mon 5/512:45 pmONT - LIS

2 stops19h 20mIberia

Wed 5/1412:30 pmLIS - ONT

2 stops19h 13mIberia

Deal found 4/2

$1,101

Tue 6/105:10 amONT - LIS

2 stops44h 10mAir Canada

Tue 6/1711:25 amLIS - ONT

2 stops38h 00mAir Canada

Deal found 4/1

$1,109

Fri 9/1210:00 amONT - LIS

2 stops17h 10mMultiple Airlines

Sat 9/2012:50 pmLIS - ONT

2 stops18h 03mMultiple Airlines

Deal found 3/31

$1,214

Mon 5/192:44 pmONT - LIS

2 stops19h 11mBritish Airways

Tue 7/87:15 amLIS - ONT

2 stops22h 23mBritish Airways

Deal found 4/1

$1,705

Tue 8/57:00 amONT - LIS

2 stops19h 45mAir France

Mon 8/115:40 amLIS - ONT

2 stops24h 49mAir France

Deal found 4/2

$2,024

Best flights from Ontario to Lisbon
Discover carefully curated flight deals from Ontario to Lisbon that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 3, 2025.

Mon 4/286:10 amONT - LIS

2 stops18h 10mUnited Airlines

Tue 5/611:25 amLIS - ONT

2 stops17h 28mUnited Airlines

Deal found 4/2

$816

Tue 5/277:05 amONT - LIS

2 stops16h 55mDelta

Tue 6/310:00 amLIS - ONT

2 stops20h 29mDelta

Deal found 4/1

$902

Mon 5/512:45 pmONT - LIS

2 stops19h 20mIberia

Fri 5/168:25 amLIS - ONT

2 stops23h 18mIberia

Deal found 4/2

$1,101

Tue 6/105:10 amONT - LIS

2 stops44h 10mAir Canada

Tue 6/1711:25 amLIS - ONT

2 stops38h 00mAir Canada

Deal found 4/1

$1,109

Fri 9/1210:00 amONT - LIS

2 stops17h 10mMultiple Airlines

Sat 9/2012:50 pmLIS - ONT

2 stops18h 03mMultiple Airlines

Deal found 3/31

$1,214

Mon 5/192:44 pmONT - LIS

2 stops19h 11mBritish Airways

Tue 7/87:15 amLIS - ONT

2 stops22h 23mBritish Airways

Deal found 4/1

$1,705

Tue 8/57:00 amONT - LIS

2 stops19h 45mAir France

Mon 8/115:40 amLIS - ONT

2 stops24h 49mAir France

Deal found 4/2

$2,024

Last-minute flights from Ontario to Lisbon
Discover last-minute flight deals from Ontario to Lisbon. Data last updated April 3, 2025 and is based on user searches.

Tue 4/86:10 amONT - LIS

2 stops18h 10mUnited Airlines

Tue 4/1510:25 amLIS - ONT

2 stops17h 56mUnited Airlines

Deal found 4/1

$941

Tue 4/85:00 amONT - LIS

2 stops20h 20mAir Canada

Tue 4/1511:25 amLIS - ONT

2 stops35h 52mAir Canada

Deal found 4/2

$2,315

Mon 4/286:10 amONT - LIS

2 stops18h 10mUnited Airlines

Tue 5/611:25 amLIS - ONT

2 stops17h 28mUnited Airlines

Deal found 4/2

$816

Mon 5/512:45 pmONT - LIS

2 stops19h 20mIberia

Tue 5/208:25 amLIS - ONT

2 stops23h 18mIberia

Deal found 4/1

$1,101

Fri 5/168:24 amONT - LIS

1 stop23h 06mMultiple Airlines

Mon 5/264:30 pmLIS - ONT

2 stops55h 56mMultiple Airlines

Deal found 4/1

$1,362

Mon 5/192:44 pmONT - LIS

2 stops19h 11mBritish Airways

Tue 7/87:15 amLIS - ONT

2 stops22h 23mBritish Airways

Deal found 4/1

$1,705

Tue 5/277:05 amONT - LIS

2 stops16h 55mDelta

Tue 6/310:00 amLIS - ONT

2 stops20h 29mDelta

Deal found 4/1

$902

One-way flights from Ontario to Lisbon
Search for one-way flight options from Ontario to Lisbon. Find affordable one-way fares based on user searches. Data last updated April 3, 2025.

Tue 5/275:10 amONT - LIS

2 stops16h 45mMultiple Airlines

Deal found 3/31

$468

Mon 4/2110:15 pmONT - LIS

2 stops25h 45mDelta

Deal found 4/2

$544

Mon 8/116:39 pmONT - LIS

3 stops30h 41mUnited Airlines

Deal found 4/2

$608

Mon 6/302:40 pmONT - LIS

2 stops17h 25mIberia

Deal found 4/1

$621

Sat 5/101:20 pmONT - LIS

2 stops37h 45mAir Canada

Deal found 4/2

$629

Wed 4/96:15 amONT - LIS

2 stops18h 50mAmerican Airlines

Deal found 4/1

$891

Tue 7/1512:46 pmONT - LIS

2 stops18h 44mBritish Airways

Deal found 4/1

$3,143

Cheapflights Fare Finder

Use the filters below to find and compare flights from Ontario to Lisbon that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

OntarioLisbon

ONT - LIS

ONTLIS

Ontario

Mon 4/28

6:10 am-8:20 am

2 stops18h 10m

Lisbon Humberto Delgado

Tue 5/6

11:25 am-8:53 pm

2 stops17h 28m

$816

OntarioLisbon

ONT - LIS

ONTLIS

Ontario

Tue 5/27

7:05 am-8:00 am

2 stops16h 55m

Lisbon Humberto Delgado

Tue 6/3

10:00 am-10:29 pm

2 stops20h 29m

$902

OntarioLisbon

ONT - LIS

ONTLIS

Ontario

Mon 5/5

12:45 pm-4:05 pm

2 stops19h 20m

Lisbon Humberto Delgado

Tue 5/13

8:25 am-11:43 pm

2 stops23h 18m

$1,101

OntarioLisbon

ONT - LIS

ONTLIS

Ontario

Tue 6/10

5:10 am-9:20 am

2 stops44h 10m

Lisbon Humberto Delgado

Tue 6/17

11:25 am-5:25 pm

2 stops38h 00m

$1,109

OntarioLisbon

ONT - LIS

ONTLIS

Ontario

Fri 9/12

10:00 am-11:10 am

2 stops17h 10m

Lisbon Humberto Delgado

Sat 9/20

12:50 pm-10:53 pm

2 stops18h 03m

$1,214

OntarioLisbon

ONT - LIS

ONTLIS

Ontario

Mon 5/19

2:44 pm-5:55 pm

2 stops19h 11m

Lisbon Humberto Delgado

Tue 7/8

7:15 am-9:38 pm

2 stops22h 23m

$1,705

OntarioLisbon

ONT - LIS

ONTLIS

Ontario

Tue 8/5

7:00 am-10:45 am

2 stops19h 45m

Lisbon Humberto Delgado

Mon 8/11

5:40 am-10:29 pm

2 stops24h 49m

$2,024

OntarioLisbon

ONT - LIS

ONTLIS

Ontario

Tue 5/27

5:10 am-5:55 am

2 stops16h 45m

$468

OntarioLisbon

ONT - LIS

ONTLIS

Ontario

Mon 4/21

10:15 pm-8:00 am

2 stops25h 45m

$544

OntarioLisbon

ONT - LIS

ONTLIS

Ontario

Mon 8/11

7:00 am-9:20 am

2 stops18h 20m

$608

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/31

Showing 1-10 of 14 results

Compare providers for flights from Ontario to Lisbon

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.

Provider	Price Accuracy	Trust Score*
FlightHub	Price Accuracy3 stars	Trust Score*3 stars
eDreams	Price Accuracy3 stars	Trust Score*3 stars
AranGrant	Price Accuracy3 stars	Trust Score*1 star

*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 FlightHub the most. FlightHub 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?

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

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

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

See what other customers who have flown with Delta, Air France and United 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.

Delta

8.0

Very good

7,897 reviews

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

8.0

Very good

7,897 reviews

Delta

8.0

Very good

7,897 reviews

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.

Air France

7.4

Good

1,427 reviews

Delta

8.0

Very good

7,897 reviews

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

8,619 reviews

Delta

8.0

Very good

7,897 reviews

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.

American Airlines

7.2

Good

10,000 reviews

Delta

8.0

Very good

7,897 reviews

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.

Air Canada

7.0

Good

9,028 reviews

Delta

8.0

Very good

7,897 reviews

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

What are the cheapest airlines flying from Ontario to Lisbon round-trip?
Cheapflights users have booked flights from Ontario to Lisbon round-trip from $816. Other airlines that can offer you cheap pricing are Delta, from $902, and Iberia, from $1,101. United Airlines is priced at 23% 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?
$544 is the cheapest one-way deal found within the past few days, from Delta. You may also be able to find cheap deals on United Airlines and Iberia, with prices starting from $608 and $621, 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

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Other flights to Lisbon

Top 4 airlines flying from Ontario to Lisbon

Airline	Cheapest	Average	Flexibility	On-time
Air Canada	Cheapest$691	Average$1,247	FlexibilityNo cancel fee	On-time67%
United Airlines	Cheapest$708	Average$1,175	FlexibilityNo cancel fee	On-time69%
Delta	Cheapest$733	Average$1,242	FlexibilityNo cancel fee	On-timeN/A
American Airlines	Cheapest$782	Average$1,123	FlexibilityNo cancel fee	On-time71%

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$468+ 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 5/27. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Ontario to Lisbon with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Ontario to Lisbon

Most accurate provider

Most trusted provider

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Ontario to Lisbon

Cheapest flights from Ontario to LisbonExplore 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 3, 2025.

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 3, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Ontario to Lisbon that are best for you.

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.

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.

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?

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 3, 2025.

Rainfall in Lisbon by month

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

Temperature in Lisbon by month

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

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 3, 2025.

See what other customers who have flown with Delta, Air France and United 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.

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?

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

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

How can I find direct flights from Ontario to Lisbon?

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

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

Traveling to a place near Ontario?

Browse thousands of different options on Cheapflights for your next trip

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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.

Top 4 airlines flying from Ontario to Lisbon

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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 3, 2025.