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

United Airlines is the most popular carrier 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 45% of people opting to fly with this airline when traveling to Lisbon. Keep in mind that there are 17 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 April 2026, there is 1 operator 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.

$374 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 $839 to $727. The lowest price recently found on this route was $888.

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Find the cheapest flights from Ontario to Lisbon

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

6:00 am - 8:20 am

ONT

LIS

18h 20m

2 stops

10:15 am - 11:06 pm

LIS

ONT

19h 51m

2 stops

$888United Airlines

Sun, Oct 18 - Wed, Oct 28

6:05 am - 9:20 am

ONT

LIS

19h 15m

2 stops

6:10 am - 8:20 pm

LIS

ONT

22h 10m

2 stops

$891United Airlines

Wed, Oct 14 - Tue, Nov 3

6:00 am - 8:20 am

ONT

LIS

18h 20m

2 stops

10:15 am - 8:20 pm

LIS

ONT

18h 05m

2 stops

$893United Airlines

Tue, Oct 20 - Sun, Nov 1

7:00 am - 9:20 am

ONT

LIS

18h 20m

2 stops

1:00 pm - 6:19 pm

LIS

ONT

37h 19m

2 stops

$917United Airlines

Tue, Aug 11 - Thu, Aug 20

5:00 am - 9:20 am

ONT

LIS

20h 20m

2 stops

6:10 am - 8:20 pm

LIS

ONT

21h 10m

2 stops

$921United Airlines

Wed, Oct 7 - Wed, Oct 28

5:45 am - 8:20 am

ONT

LIS

18h 35m

2 stops

6:15 am - 6:19 pm

LIS

ONT

20h 04m

2 stops

$923United Airlines

Wed, Aug 12 - Wed, Sep 2

6:30 am - 10:30 am

ONT

LIS

20h 00m

2 stops

12:20 pm - 12:38 pm

LIS

ONT

32h 18m

2 stops

$933United Airlines

Sun, Aug 9 - Wed, Aug 19

6:00 am - 8:20 am

ONT

LIS

18h 20m

2 stops

10:25 am - 9:58 pm

LIS

ONT

19h 33m

2 stops

$938United Airlines

Sat, Oct 17 - Wed, Oct 21

5:00 am - 10:30 am

ONT

LIS

21h 30m

3 stops

12:20 pm - 6:19 pm

LIS

ONT

37h 59m

2 stops

$946United Airlines

Tue, Aug 11 - Fri, Aug 21

5:00 am - 9:20 am

ONT

LIS

20h 20m

3 stops

1:00 pm - 6:19 pm

LIS

ONT

37h 19m

2 stops

$947United Airlines

Wed, Aug 12 - Fri, Aug 21

Delta flights from Ontario to Lisbon

Our best Delta deals on Ontario to Lisbon flight tickets

Delta

Jul 27

ONT6:20 amOntario

20h 55m

2 stops

LIS11:15 amLisbon Humberto Delgado

Aug 9

LIS5:35 amLisbon Humberto Delgado

26h 09m

2 stops

ONT11:44 pmOntario

$1,055

Delta

Jul 27

ONT7:05 amOntario

20h 10m

2 stops

LIS11:15 amLisbon Humberto Delgado

Aug 9

LIS5:35 amLisbon Humberto Delgado

26h 09m

2 stops

ONT11:44 pmOntario

$1,056

Delta

Jun 9

ONT6:20 amOntario

24h 35m

2 stops

LIS2:55 pmLisbon Humberto Delgado

Jun 23

LIS5:00 amLisbon Humberto Delgado

20h 19m

2 stops

ONT5:19 pmOntario

$1,198

United Airlines flights from Ontario to Lisbon

Our best United Airlines deals on Ontario to Lisbon flight tickets

United Airlines

Oct 18

ONT6:00 amOntario

18h 20m

2 stops

LIS8:20 amLisbon Humberto Delgado

Oct 28

LIS10:15 amLisbon Humberto Delgado

19h 51m

2 stops

ONT11:06 pmOntario

$888

United Airlines

Oct 14

ONT6:05 amOntario

19h 15m

2 stops

LIS9:20 amLisbon Humberto Delgado

Nov 3

LIS6:10 amLisbon Humberto Delgado

22h 10m

2 stops

ONT8:20 pmOntario

$891

United Airlines

Oct 20

ONT6:00 amOntario

18h 20m

2 stops

LIS8:20 amLisbon Humberto Delgado

Nov 1

LIS10:15 amLisbon Humberto Delgado

18h 05m

2 stops

ONT8:20 pmOntario

$893

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

OntarioLisbon

ONT - LIS

ONTLIS

Ontario

Sun 10/18

6:00 am-8:20 am

2 stops18h 20m

Lisbon Humberto Delgado

Wed 10/28

10:15 am-11:06 pm

2 stops19h 51m

$888

OntarioLisbon

ONT - LIS

ONTLIS

Ontario

Wed 10/14

6:05 am-9:20 am

2 stops19h 15m

Lisbon Humberto Delgado

Tue 11/3

6:10 am-8:20 pm

2 stops22h 10m

$891

Quickest round-trip

OntarioLisbon

ONT - LIS

ONTLIS

Ontario

Tue 10/20

6:00 am-8:20 am

2 stops18h 20m

Lisbon Humberto Delgado

Sun 11/1

10:15 am-8:20 pm

2 stops18h 05m

$893

OntarioLisbon

ONT - LIS

ONTLIS

Ontario

Tue 8/11

7:00 am-9:20 am

2 stops18h 20m

Lisbon Humberto Delgado

Thu 8/20

1:00 pm-6:19 pm

2 stops37h 19m

$917

OntarioLisbon

ONT - LIS

ONTLIS

Ontario

Wed 10/7

5:00 am-9:20 am

2 stops20h 20m

Lisbon Humberto Delgado

Wed 10/28

6:10 am-8:20 pm

2 stops21h 10m

$921

OntarioLisbon

ONT - LIS

ONTLIS

Ontario

Wed 8/12

5:45 am-8:20 am

2 stops18h 35m

Lisbon Humberto Delgado

Wed 9/2

6:15 am-6:19 pm

2 stops20h 04m

$923

OntarioLisbon

ONT - LIS

ONTLIS

Ontario

Sun 8/9

6:30 am-10:30 am

2 stops20h 00m

Lisbon Humberto Delgado

Wed 8/19

12:20 pm-12:38 pm

2 stops32h 18m

$933

OntarioLisbon

ONT - LIS

ONTLIS

Ontario

Sat 10/17

6:00 am-8:20 am

2 stops18h 20m

Lisbon Humberto Delgado

Wed 10/21

10:25 am-9:58 pm

2 stops19h 33m

$938

OntarioLisbon

ONT - LIS

ONTLIS

Ontario

Tue 8/11

5:00 am-10:30 am

3 stops21h 30m

Lisbon Humberto Delgado

Fri 8/21

12:20 pm-6:19 pm

2 stops37h 59m

$946

OntarioLisbon

ONT - LIS

ONTLIS

Ontario

Wed 8/12

5:00 am-9:20 am

3 stops20h 20m

Lisbon Humberto Delgado

Fri 8/21

1:00 pm-6:19 pm

2 stops37h 19m

$947

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 month to fly to Lisbon?

In general, December 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 $0. If you are unable to visit Lisbon during the month of December, then departing from Ontario during the month March is also very affordable. Most momondo users find prices during this month for around $638.

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 $551. When flying out on a Sunday, the most expensive travel day of the week, you can expect to see flight prices from Ontario to Lisbon for around $783.

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 afternoon when flights can be purchased for as low as $671. If you have a flexible travel schedule, then try to avoid flying in the evening when prices are $906 on average. Flights to Lisbon from Ontario in the evening 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

Frequently asked questions about flying 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 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 April 2026, there is 1 operator 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 100% of all bookings.

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 9,672 reviews		Search United Airlines flights

Sintra

Ericeira

Fátima

Nazaré

Setúbal

Peniche

Estoril

Evora

Oeiras

Leiria

Sesimbra

Figueira da Foz

Zambujeira do Mar

Óbidos

Batalha

Tomar

Comporta

Torres Vedras

Almada

Sines

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 $374

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 10/25. 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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Delta flights from Ontario to Lisbon

Our best Delta deals on Ontario to Lisbon flight tickets

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Our best United Airlines deals on Ontario to Lisbon flight tickets

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

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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 month to fly to 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

Frequently asked questions about flying from Ontario to Lisbon

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

Airlines are sorted and displayed according to clicks in the past 7 days on momondo

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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