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Cheap flights from Ontario to Lisbon from $264

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 3/9. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from Ontario to Lisbon

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
6:00 am - 8:10 am
ONT
-
LIS
18h 10m2 stops
United Airlines Logo
12:20 pm - 10:53 pm
LIS
-
ONT
18h 33m2 stops
$494United Airlines
Thu, Jan 15 - Sat, Jan 24
United Airlines Logo
5:05 am - 9:20 am
ONT
-
LIS
20h 15m2 stops
United Airlines Logo
12:20 pm - 10:53 pm
LIS
-
ONT
18h 33m2 stops
$497United Airlines
Thu, Jan 15 - Sat, Jan 24
United Airlines Logo
8:00 am - 8:10 am
ONT
-
LIS
16h 10m2 stops
United Airlines Logo
5:00 am - 8:58 pm
LIS
-
ONT
23h 58m2 stops
$498United Airlines
Wed, Jan 7 - Wed, Jan 14
United Airlines Logo
5:05 am - 9:20 am
ONT
-
LIS
20h 15m2 stops
United Airlines Logo
6:10 am - 10:53 pm
LIS
-
ONT
24h 43m2 stops
$499United Airlines
Tue, Jan 13 - Tue, Jan 20
United Airlines Logo
5:05 am - 8:10 am
ONT
-
LIS
19h 05m2 stops
United Airlines Logo
6:10 am - 12:47 pm
LIS
-
ONT
38h 37m2 stops
$500United Airlines
Fri, Jan 23 - Tue, Jan 27
British Airways Logo
5:06 pm - 9:45 pm
ONT
-
LIS
20h 39m2 stops
British Airways Logo
7:05 am - 11:58 pm
LIS
-
ONT
24h 53m2 stops
$507British Airways
Sun, Feb 15 - Fri, Feb 27
United Airlines Logo
5:05 am - 8:10 am
ONT
-
LIS
19h 05m2 stops
United Airlines Logo
10:15 am - 10:53 pm
LIS
-
ONT
20h 38m2 stops
$510United Airlines
Fri, Jan 9 - Tue, Jan 20
United Airlines Logo
5:05 am - 9:20 am
ONT
-
LIS
20h 15m2 stops
United Airlines Logo
11:20 am - 11:18 am
LIS
-
ONT
31h 58m3 stops
$512United Airlines
Thu, Jan 15 - Sat, Jan 24
United Airlines Logo
6:00 am - 9:20 am
ONT
-
LIS
19h 20m2 stops
United Airlines Logo
10:50 am - 9:58 pm
LIS
-
ONT
19h 08m2 stops
$516United Airlines
Thu, Jan 8 - Sun, Jan 18
British Airways Logo
3:05 pm - 5:55 pm
ONT
-
LIS
18h 50m2 stops
British Airways Logo
7:15 am - 9:56 pm
LIS
-
ONT
22h 41m2 stops
$567British Airways
Tue, May 5 - Tue, May 12

Delta flights from Ontario to Lisbon

Our best Delta deals on Ontario to Lisbon flight tickets
Delta
Mar 6
ONT6:00 amOntario
42h 00m
2 stops
LIS8:00 amLisbon Humberto Delgado
Mar 23
LIS10:00 amLisbon Humberto Delgado
32h 35m
2 stops
ONT11:35 amOntario
$608
Find similar
Delta
Mar 8
ONT10:30 pmOntario
27h 30m
2 stops
LIS9:00 amLisbon Humberto Delgado
Mar 24
LIS10:00 amLisbon Humberto Delgado
32h 35m
2 stops
ONT11:35 amOntario
$649
Find similar
Delta
Mar 6
ONT6:00 amOntario
42h 00m
2 stops
LIS8:00 amLisbon Humberto Delgado
Mar 24
LIS10:00 amLisbon Humberto Delgado
32h 35m
2 stops
ONT11:35 amOntario
$655
Find similar

American Airlines flights from Ontario to Lisbon

Our best American Airlines deals on Ontario to Lisbon flight tickets
American Airlines
Mar 4
ONT10:59 amOntario
19h 51m
2 stops
LIS2:50 pmLisbon Humberto Delgado
Mar 25
LIS7:05 amLisbon Humberto Delgado
23h 54m
2 stops
ONT11:59 pmOntario
$721
Find similar
American Airlines
Mar 4
ONT10:59 amOntario
19h 51m
2 stops
LIS2:50 pmLisbon Humberto Delgado
Mar 24
LIS7:05 amLisbon Humberto Delgado
34h 01m
2 stops
ONT10:06 amOntario
$727
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Ontario to Lisbon that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated December 11, 2025.
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

Thu 1/15

6:00 am-8:10 am

2 stops18h 10m

Lisbon Humberto Delgado

Sat 1/24

12:20 pm-10:53 pm

2 stops18h 33m

$494

OntarioLisbon

ONT - LIS

ONTLIS

Ontario

Thu 1/15

5:05 am-9:20 am

2 stops20h 15m

Lisbon Humberto Delgado

Sat 1/24

12:20 pm-10:53 pm

2 stops18h 33m

$497

OntarioLisbon

ONT - LIS

ONTLIS

Ontario

Wed 1/7

8:00 am-8:10 am

2 stops16h 10m

Lisbon Humberto Delgado

Wed 1/14

5:00 am-8:58 pm

2 stops23h 58m

$498

OntarioLisbon

ONT - LIS

ONTLIS

Ontario

Tue 1/13

5:05 am-9:20 am

2 stops20h 15m

Lisbon Humberto Delgado

Tue 1/20

6:10 am-10:53 pm

2 stops24h 43m

$499

OntarioLisbon

ONT - LIS

ONTLIS

Ontario

Fri 1/23

5:05 am-8:10 am

2 stops19h 05m

Lisbon Humberto Delgado

Tue 1/27

6:10 am-12:47 pm

2 stops38h 37m

$500

OntarioLisbon

ONT - LIS

ONTLIS

Ontario

Sun 2/15

5:06 pm-9:45 pm

2 stops20h 39m

Lisbon Humberto Delgado

Fri 2/27

7:05 am-11:58 pm

2 stops24h 53m

$507

OntarioLisbon

ONT - LIS

ONTLIS

Ontario

Fri 1/9

5:05 am-8:10 am

2 stops19h 05m

Lisbon Humberto Delgado

Tue 1/20

10:15 am-10:53 pm

2 stops20h 38m

$510

OntarioLisbon

ONT - LIS

ONTLIS

Ontario

Thu 1/15

5:05 am-9:20 am

2 stops20h 15m

Lisbon Humberto Delgado

Sat 1/24

11:20 am-11:18 am

3 stops31h 58m

$512

OntarioLisbon

ONT - LIS

ONTLIS

Ontario

Thu 1/8

6:00 am-9:20 am

2 stops19h 20m

Lisbon Humberto Delgado

Sun 1/18

10:50 am-9:58 pm

2 stops19h 08m

$516

OntarioLisbon

ONT - LIS

ONTLIS

Ontario

Tue 5/5

3:05 pm-5:55 pm

2 stops18h 50m

Lisbon Humberto Delgado

Tue 5/12

7:15 am-9:56 pm

2 stops22h 41m

$567

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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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 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 $493. 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 $784.

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 $418. If you have a flexible travel schedule, then try to avoid flying at noon when prices are $1,103 on average. Flights to Lisbon from Ontario at noon 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

16h 10m

Direct flights

None
The fastest flight from Ontario to Lisbon takes 16h 10m
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 16h 10m, 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?

  • 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?

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 AirlinesPriceFrom $515Free CancellationRating
7.4
9,095 reviews
Search United Airlines flights

Traveling to a place near Lisbon?

Book flights to Lisbon if you plan to visit one of these locations
Sintra
Ericeira
Fátima
Nazaré
Oeiras
Setúbal
Peniche
Estoril
Leiria
Sesimbra
Tomar
Almada
Evora
Figueira da Foz
Zambujeira do Mar
Batalha
Comporta
Torres Vedras
Sines
Óbidos

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.

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