ONT - LIS

$333 Find Cheap Flights from Ontario to Lisbon

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Ontario to Lisbon departing on 7/29. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy

KAYAK searches hundreds of travel sites at once for deals on flights to Lisbon

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Ontario to Lisbon, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Ontario to Lisbon, as well as popular online travel agencies
Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 20% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Flights Deals
Useful Info
Flights Deals

Cheap Flights from Ontario to Lisbon (ONT-LIS)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Ontario to Lisbon that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Ontario to Lisbon

Mon, Aug 11 - Wed, Aug 27
Iberia Logo
2:57 pm - 4:05 pmONT-LIS
17h 08m2 stops
Iberia Logo
9:00 am - 10:48 pmLIS-ONT
21h 48m2 stops
$578Iberia
Find Deal
Wed, Sep 17 - Wed, Oct 1
British Airways Logo
4:45 pm - 11:10 pmONT-LIS
22h 25m2 stops
British Airways Logo
8:45 pm - 11:59 pmLIS-ONT
35h 14m2 stops
$596British Airways
Find Deal
Tue, Dec 2 - Sat, Dec 13
United Airlines Logo
6:04 am - 8:10 amONT-LIS
18h 06m2 stops
United Airlines Logo
11:00 am - 10:26 pmLIS-ONT
43h 26m2 stops
$604United Airlines
Find Deal
Sun, Nov 23 - Tue, Dec 2
United Airlines Logo
7:00 am - 8:10 amONT-LIS
17h 10m2 stops
United Airlines Logo
11:00 am - 10:26 pmLIS-ONT
19h 26m2 stops
$609United Airlines
Find Deal
Tue, Nov 25 - Tue, Dec 2
Air Canada Logo
5:40 am - 9:20 amONT-LIS
19h 40m2 stops
Air Canada Logo
11:00 am - 12:32 pmLIS-ONT
33h 32m2 stops
$610Air Canada
Find Deal
Thu, Jul 17 - Thu, Jul 24
Delta Logo
2:14 pm - 5:50 pmONT-LIS
19h 36m2 stops
Delta Logo
5:40 am - 11:42 pmLIS-ONT
26h 02m2 stops
$743Delta
Find Deal
Thu, Jul 17 - Thu, Jul 24
Delta Logo
9:44 am - 2:50 pmONT-LIS
21h 06m2 stops
Delta Logo
5:00 am - 10:27 pmLIS-ONT
25h 27m2 stops
$758Delta
Find Deal
Tue, Sep 9 - Sat, Sep 20
Air Canada Logo
5:10 am - 9:20 amONT-LIS
20h 10m2 stops
Air Canada Logo
12:55 pm - 5:29 pmLIS-ONT
36h 34m2 stops
$835Air Canada
Find Deal
Tue, Sep 9 - Fri, Sep 26
American Airlines Logo
12:46 pm - 11:00 pmONT-LIS
26h 14m2 stops
American Airlines Logo
8:25 am - 10:33 pmLIS-ONT
22h 08m2 stops
$880American Airlines
Find Deal
Sat, Sep 13 - Fri, Sep 26
American Airlines Logo
2:54 pm - 9:05 amONT-LIS
34h 11m2 stops
American Airlines Logo
8:25 am - 10:33 pmLIS-ONT
22h 08m2 stops
$896American Airlines
Find Deal
Useful Info

KAYAK's insights & trends for Ontario to Lisbon flights

Get data-powered insights and trends into flights from Ontario to Lisbon to help you find the cheapest flights, the best time to fly and much more.

What’s the cheapest day of the week to fly from Ontario to Lisbon?

The average price of all round-trip flights from Ontario to Lisbon clicked on KAYAK for each day over the last 12 months.

Your flight ticket price will generally be cheaper if you fly to Lisbon on a Tuesday and more expensive on a Saturday. On your return trip to Ontario, you should consider flying back on a Thursday, and avoid Tuesdays for better deals.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Ontario to Lisbon, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Ontario to Lisbon is March, where tickets cost $708 (return) on average. On the other hand, the most expensive months are February and December, where the average cost of round-trip tickets is $2,482 and $1,424 respectively.

Good to know

Low seasonAugust
High seasonApril
Cheapest flight$333
Best time to beat the crowds but there is an average 5% increase in price.
Most popular time to fly and prices are also 0% lower on average.
Flight from Ontario to Lisbon

When to book flights from Ontario to Lisbon

Are your dates flexible? Find out the best times to travel from Ontario to Lisbon based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Ontario to Lisbon

  • What is the cheapest flight from Ontario to Lisbon?

    In the last 3 days, the lowest price for a flight from Ontario to Lisbon was $333 for a one-way ticket and $578 for a round-trip.

  • Do I need a passport to fly between Ontario and Lisbon?

    A passport is required to fly from Ontario to Lisbon.

  • Which aircraft models fly most regularly from Ontario to Lisbon?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Ontario to Lisbon?

    SkyTeam, Star Alliance, and oneworld are the airline alliances operating flights between Ontario and Lisbon, with oneworld being the most commonly used for this route.

  • How does KAYAK find such low prices on flights from Ontario to Lisbon?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Ontario to Lisbon.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Ontario to Lisbon?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Lisbon from Ontario is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Ontario to Lisbon?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Lisbon with an airline and back to Ontario with another airline. Booking your flights between Ontario and LIS can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Ontario to Lisbon?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Lisbon from Ontario up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airline flying from Ontario to Lisbon

 
See real verified KAYAK customer reviews for airlines flying from Ontario to Lisbon. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Ontario to Lisbon? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.4
United AirlinesOverall score based on 8810 reviews
7.3Comfort
7.7Boarding
6.6Food
8.1Crew
7.0Entertainment
Airline reviews

it was so bad. I tried to board my flight from vancouver to saskatoon. And to my surprise they did not board me cause the flight was changed and no email was send to me. and on my boarding pass which i got from seattle says different flight. I did not knew anyone from Vancouver, air canada crew was rude, i asked for today flight but they were rude and i had early morning dental appointment in saskatoon. I was so much in pain and my whole day is wasted today. and i suffered alot. They did provide me hotel but they did not provide me any food. I am really really disappointed first time had so bad experience with air canada. I may think twice to book it again. If i can get any reply or any composition that would be great. Thanks

2.0 MediocreAnonymous, Jun 2025LAX - SEA
Read more United Airlines reviews

it was so bad. I tried to board my flight from vancouver to saskatoon. And to my surprise they did not board me cause the flight was changed and no email was send to me. and on my boarding pass which i got from seattle says different flight. I did not knew anyone from Vancouver, air canada crew was rude, i asked for today flight but they were rude and i had early morning dental appointment in saskatoon. I was so much in pain and my whole day is wasted today. and i suffered alot. They did provide me hotel but they did not provide me any food. I am really really disappointed first time had so bad experience with air canada. I may think twice to book it again. If i can get any reply or any composition that would be great. Thanks

Very comfortable (upgraded to business class). The audio on my screen didn’t work, but I managed to play the audio through my phone while watching the screen.

The food was the worst I’ve had on any flight I’ve ever been on.

I was supposed to be on business class at first class from Denver back to Miami due to weather changes. I missed my connection and it’s put on a flight to Fort Lauderdale. Instead of honoring my business class/1st class ticket, they put me in coach, but there were two first class seats open. I think it’s absolutely disgusting that I paid for first class $1300 ticket and they put me in economy and they had to open seats available and I have still not been refunded the difference. I ended up having to eat a snack box instead of the meal I was supposed to get and did not get home till 2 AM so I think that’s a little pathetic that I had to live off crackers for dinner And my poor dog ate some cheese and salami. Oh yes, apparently when they switched me to the new flight they forgot to mention I had a service dog

Flight was late as pilot crew had to land at different airport in their previous flight. Passengers boarded and had to wait for pilots inside plane. Series of incomplete and unnecessary announcements by an annoying voice, rather than complete, informative announcements.

Breakfast was not loaded at SFO due to catering company change. Seems like a major airline at a major hub would have thought of something else or warned passengers to pick up food before boarding a 3 hour flight.

Boarding seemed to be organized bedlam. For what ever reason, preboarding took longer than 20 minutes. Made the plane 20 minutes late taking off. Luckily we arrived on time. Flight crew seemed very friendly. Only slight turbulence.

They hired a new catering company the same day of my flight. They botched the job by not delivering the right carts and after THREE HOURS waiting, the flight crew timed out (flight was 19 hours long and FAA rules state crew can’t work more than 14 hours long). So they CANCELED OUR FLIGHT!! Worst experience ever. Avoid UAL at all costs.

The personnel were professional and friendly. The Boeing 737 Max 9 is too claustrophobic and was very warm at both airport gates, and still warm in the air.

While the staff was pleasant and helpful, the following observations are for your awareness. There was some delay on the tarmac on take off and landing. The paid lunch/food offerings were limited. Entertainment was only available on WiFi at a cost.

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

Information on your arrival and departure airports

Not what you’re looking for? Find thousands of other hotels, flights, car rentals and package deals with KAYAK.