What is the cheapest airline that flies from Ontario to Lisbon Humberto Delgado?

United Airlines and British Airways are the most popular carriers operating from Ontario to Lisbon Humberto Delgado

What airlines fly to Lisbon?

TAP AIR PORTUGAL, United Airlines and British Airways are the top three most popular airlines that fly to Lisbon from Ontario according to our data. TAP AIR PORTUGAL is the first choice among our users, with 41% of people opting to fly with this airline when traveling to Lisbon. Keep in mind that there are 16 different airlines that fly to Lisbon on a routine basis, so you have a few additional options to choose from.

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 March 2026, 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.

$331 Cheap Flights from Ontario to Lisbon in 2026

Q: What is the typical price of a round-trip flight between Ontario and Lisbon?

Prices are currently high for flights on this route. Typical prices usually range from $609 to $666. The lowest price recently found on this route was $711.

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Find the cheapest flights from Ontario to Lisbon

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One-way

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Cheap round-trip flights

Enter your travel dates to find the best prices.

7:00 am - 8:20 am

ONT

LIS

17h 20m

2 stops

11:25 am - 8:52 pm

LIS

ONT

41h 27m

2 stops

$711United Airlines

Sat, Aug 15 - Sat, Aug 22

11:53 am - 5:50 pm

ONT

LIS

21h 57m

2 stops

5:00 am - 5:15 pm

LIS

ONT

20h 15m

2 stops

$727Delta

Tue, Apr 21 - Tue, Apr 28

1:27 pm - 11:05 am

ONT

LIS

37h 38m

2 stops

11:25 am - 10:31 pm

LIS

ONT

43h 06m

2 stops

$728United Airlines

Tue, Apr 7 - Tue, Apr 14

1:34 pm - 11:05 am

ONT

LIS

37h 31m

2 stops

11:25 am - 10:31 pm

LIS

ONT

43h 06m

2 stops

$729United Airlines

Tue, Apr 7 - Tue, Apr 14

10:25 pm - 10:55 am

ONT

LIS

28h 30m

2 stops

5:00 am - 11:44 pm

LIS

ONT

26h 44m

2 stops

$732Delta

Mon, Apr 6 - Wed, Apr 15

10:25 pm - 10:55 am

ONT

LIS

28h 30m

2 stops

11:55 am - 12:14 pm

LIS

ONT

56h 19m

2 stops

$738Delta

Mon, Apr 6 - Tue, Apr 14

5:10 am - 9:20 am

ONT

LIS

44h 10m

3 stops

6:15 am - 10:31 pm

LIS

ONT

24h 16m

2 stops

$740United Airlines

Tue, Apr 21 - Tue, Apr 28

6:05 am - 8:20 am

ONT

LIS

42h 15m

2 stops

10:25 am - 9:58 pm

LIS

ONT

19h 33m

2 stops

$748United Airlines

Sun, Apr 19 - Tue, May 5

10:59 am - 2:30 pm

ONT

LIS

19h 31m

2 stops

4:30 pm - 6:30 pm

LIS

ONT

34h 00m

2 stops

$751British Airways

Tue, Apr 7 - Tue, Apr 14

6:05 am - 8:20 am

ONT

LIS

18h 15m

2 stops

10:25 am - 9:50 pm

LIS

ONT

19h 25m

2 stops

$760United Airlines

Mon, Apr 20 - Wed, Apr 29

United Airlines flights from Ontario to Lisbon

Our best United Airlines deals on Ontario to Lisbon flight tickets

United Airlines

Aug 15

ONT7:00 amOntario

17h 20m

2 stops

LIS8:20 amLisbon Humberto Delgado

Aug 22

LIS11:25 amLisbon Humberto Delgado

41h 27m

2 stops

ONT8:52 pmOntario

$711

United Airlines

Apr 7

ONT1:27 pmOntario

37h 38m

2 stops

LIS11:05 amLisbon Humberto Delgado

Apr 14

LIS11:25 amLisbon Humberto Delgado

43h 06m

2 stops

ONT10:31 pmOntario

$728

United Airlines

Apr 7

ONT1:34 pmOntario

37h 31m

2 stops

LIS11:05 amLisbon Humberto Delgado

Apr 14

LIS11:25 amLisbon Humberto Delgado

43h 06m

2 stops

ONT10:31 pmOntario

$729

Delta flights from Ontario to Lisbon

Our best Delta deals on Ontario to Lisbon flight tickets

Delta

Apr 21

ONT11:53 amOntario

21h 57m

2 stops

LIS5:50 pmLisbon Humberto Delgado

Apr 28

LIS5:00 amLisbon Humberto Delgado

20h 15m

2 stops

ONT5:15 pmOntario

$727

Delta

Apr 6

ONT11:59 amOntario

21h 51m

2 stops

LIS5:50 pmLisbon Humberto Delgado

Apr 15

LIS5:00 amLisbon Humberto Delgado

26h 44m

2 stops

ONT11:44 pmOntario

$779

Delta

Apr 7

ONT6:00 amOntario

24h 55m

2 stops

LIS2:55 pmLisbon Humberto Delgado

Apr 15

LIS5:00 amLisbon Humberto Delgado

26h 44m

2 stops

ONT11:44 pmOntario

$823

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

OntarioLisbon

ONT - LIS

ONTLIS

Ontario

Sat 8/15

7:00 am-8:20 am

2 stops17h 20m

Lisbon Humberto Delgado

Sat 8/22

11:25 am-8:52 pm

2 stops41h 27m

$711

OntarioLisbon

ONT - LIS

ONTLIS

Ontario

Tue 4/21

11:53 am-5:50 pm

2 stops21h 57m

Lisbon Humberto Delgado

Tue 4/28

5:00 am-5:15 pm

2 stops20h 15m

$727

OntarioLisbon

ONT - LIS

ONTLIS

Ontario

Tue 4/7

1:27 pm-11:05 am

2 stops37h 38m

Lisbon Humberto Delgado

Tue 4/14

11:25 am-10:31 pm

2 stops43h 06m

$728

OntarioLisbon

ONT - LIS

ONTLIS

Ontario

Tue 4/7

1:34 pm-11:05 am

2 stops37h 31m

Lisbon Humberto Delgado

Tue 4/14

11:25 am-10:31 pm

2 stops43h 06m

$729

OntarioLisbon

ONT - LIS

ONTLIS

Ontario

Mon 4/6

10:25 pm-10:55 am

2 stops28h 30m

Lisbon Humberto Delgado

Wed 4/15

5:00 am-11:44 pm

2 stops26h 44m

$732

OntarioLisbon

ONT - LIS

ONTLIS

Ontario

Mon 4/6

10:25 pm-10:55 am

2 stops28h 30m

Lisbon Humberto Delgado

Tue 4/14

11:55 am-12:14 pm

2 stops56h 19m

$738

OntarioLisbon

ONT - LIS

ONTLIS

Ontario

Tue 4/21

5:10 am-9:20 am

3 stops44h 10m

Lisbon Humberto Delgado

Tue 4/28

6:15 am-10:31 pm

2 stops24h 16m

$740

OntarioLisbon

ONT - LIS

ONTLIS

Ontario

Sun 4/19

6:05 am-8:20 am

2 stops42h 15m

Lisbon Humberto Delgado

Tue 5/5

10:25 am-9:58 pm

2 stops19h 33m

$748

OntarioLisbon

ONT - LIS

ONTLIS

Ontario

Tue 4/7

10:59 am-2:30 pm

2 stops19h 31m

Lisbon Humberto Delgado

Tue 4/14

4:30 pm-6:30 pm

2 stops34h 00m

$751

Quickest round-trip

OntarioLisbon

ONT - LIS

ONTLIS

Ontario

Mon 4/20

6:05 am-8:20 am

2 stops18h 15m

Lisbon Humberto Delgado

Wed 4/29

10:25 am-9:50 pm

2 stops19h 25m

$760

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

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

Prices

Airlines

What is the typical price of a round-trip flight between Ontario and Lisbon?

What is the cheapest day to depart on your flight to Lisbon?

Our data shows that Thursday is the least expensive day to fly to Lisbon. Tickets to fly out on this day can be as low as $521. When flying out on a Friday, the most expensive travel day of the week, you can expect to see flight prices from Ontario to Lisbon for around $750.

What is the cheapest time of day to depart on your flight to Lisbon?

The cheapest time of day to fly to Lisbon is in the evening when flights can be purchased for as low as $565. If you have a flexible travel schedule, then try to avoid flying in the afternoon when prices are $648 on average. Flights to Lisbon from Ontario in the afternoon are generally more expensive because this time of day is more convenient for travelers’ schedules.

When to book flights from Ontario to Lisbon

Are you open to changing your travel dates? Check out the ideal times to fly from Ontario to Lisbon according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

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

Fastest flight time	18h 20m
Direct flights	None

The fastest flight from Ontario to Lisbon takes 18h 20m

There are no direct flights from Ontario to Lisbon. There are no popular flight routes from Ontario to Lisbon.

Search flight deals

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 18h 20m, 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 March 2026, 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 66% of all bookings. The subsequent popular airline is Delta at 34%.

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
United Airlines	PriceFrom $515	Free Cancellation	Rating 7.4 9,414 reviews		Search United Airlines flights
Delta	PriceFrom $582	Free Cancellation	Rating 7.9 8,278 reviews		Search Delta flights

Sintra

Fátima

Ericeira

Nazaré

Setúbal

Peniche

Estoril

Evora

Oeiras

Sesimbra

Leiria

Figueira da Foz

Tomar

Zambujeira do Mar

Óbidos

Batalha

Sines

Torres Vedras

Comporta

Almada

Why 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.

An easier way to manage your Lisbon trip

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Cheap flights from Ontario to Lisbon from $331

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 7/16. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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How to get the cheapest flight ticket from Ontario to Lisbon

What is the typical price of a round-trip flight between Ontario and Lisbon?

What is the cheapest day to depart on your flight to Lisbon?

What is the cheapest time of day to depart on your flight to Lisbon?

What is the cheapest airline that flies from Ontario to Lisbon Humberto Delgado?

What airlines fly to Lisbon?

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

Fastest flight time

Direct flights

Best airlines flying from Ontario to Lisbon

Compare and see reviews for airlines that fly from Ontario to Lisbon with momondo

Traveling to a place near Lisbon?

Why use momondo?

An easier way to manage your Lisbon trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Portugal

Airports servicing Portugal

Fly your favorite airline to Lisbon

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Cabin classes currently available on flights to Lisbon

List of cabin classes available on flights landing in Lisbon. Availability may vary depending on flight origin and airline.

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