Cheap flights from Ontario to Lisbon from $336
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Ontario to Lisbon departing on 10/27. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
Discover deals from 900+ travel sites with momondo.
Save money when you book flights with momondo
Big names and deals
Big names and deals
Search 100s of travel sites to compare prices.Filter for what you want
Filter for what you want
Free Wi-Fi? Stopover? Instantly customize your results.Trusted and free
Trusted and free
We’re completely free to use - no hidden charges or fees.Price Alerts
Price Alerts
Not ready to book? to track prices.Find the cheapest flights from Ontario to Lisbon
Cheap round-trip flights
Cheap one-way flights
Cheap last minute flights
British Airways flights from Ontario to Lisbon
Our best British Airways deals on Ontario to Lisbon flight tickets
Delta flights from Ontario to Lisbon
Our best Delta deals on Ontario to Lisbon flight tickets
See travel insights to Lisbon from
How to get the cheapest flight ticket from Ontario to Lisbon
Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip
What is the cheapest month to fly to Lisbon?
In general, March is the cheapest month to fly from Ontario to Lisbon. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $708. If you are unable to visit Lisbon during the month of March, then departing from Ontario during the month November is also very affordable. Most momondo users find prices during this month for around $749.
What is the cheapest day to depart on your flight to Lisbon?
Our data shows that Wednesday is the least expensive day to fly to Lisbon. Tickets to fly out on this day can be as low as $704. When flying out on a Saturday, the most expensive travel day of the week, you can expect to see flight prices from Ontario to Lisbon for around $847.
What is the cheapest airline that flies from Ontario to Lisbon Humberto Delgado?
United Airlines, Delta, and Air Canada are the most popular carriers operating from Ontario to Lisbon Humberto Delgado
What airlines fly to Lisbon?
United Airlines, British Airways and Air Canada are the top three most popular airlines that fly to Lisbon from Ontario according to our data. United Airlines is the first choice among our users, with 31% of people opting to fly with this airline when traveling to Lisbon. Keep in mind that there are 19 different airlines that fly to Lisbon on a routine basis, so you have a few additional options to choose from.
When to book flights from Ontario to Lisbon
Cheap Ontario to Lisbon (ONT to LIS) flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Ontario to Lisbon
How far is Ontario to Lisbon Humberto Delgado by plane?
Lisbon Humberto Delgado is 5638.1 mi away from Ontario. Flights usually cover this in 16h 56m, depending on flying conditions and air traffic around both airports.
When did momondo last update prices for flights from Ontario Airport to Lisbon Humberto Delgado Airport?
Prices for flights from Ontario Airport to Lisbon Humberto Delgado Airport are updated daily.
How many operators does momondo search for flights from Ontario Airport to Lisbon Humberto Delgado Airport?
As of June 2025, there are 2 operators available to choose from for flights from Ontario Airport to Lisbon Humberto Delgado Airport.
How old do you have to be to fly from Ontario Airport to Lisbon Humberto Delgado Airport?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Ontario Airport to Lisbon Humberto Delgado Airport.
What documentation or ID do you need to fly to Lisbon Humberto Delgado Airport?
The necessary travel and health documents for your Lisbon Humberto Delgado Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.
What is the most popular airline from Ontario to Lisbon?
momondo data reveals that the most frequently booked airline on the route from Ontario to Lisbon is United Airlines, representing 53% of all bookings. The subsequent popular airline is Delta at 47%.
Best airlines flying from Ontario to Lisbon
Compare and see reviews for airlines that fly from Ontario to Lisbon with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $568 | Free Cancellation | Rating 7.4 8,790 reviews | |||
| PriceFrom $733 | Free Cancellation | Rating 8.0 7,950 reviews |
Traveling to a place near Lisbon?
Book flights to Lisbon if you plan to visit one of these locationsWhy use momondo?
Why should I use momondo to find a flight deal from Ontario to Lisbon?
To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Lisbon from Ontario.
Can I find flights from Ontario to Lisbon with flexible booking policies on momondo?
Flights from Ontario to Lisbon with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.
How can momondo help me find flights from Ontario to Lisbon?
momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Ontario to Lisbon.
I’m not ready to book a flight from Ontario to Lisbon right now. Can momondo alert me if prices change?
If you are simply researching potential flights to Lisbon, momondo offers a useful price alert feature which will track prices for flights to Lisbon from Ontario and alert you when they change.