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 Delta 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 49% 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 September 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.

$375 Cheap Flights from Ontario to Lisbon in 2026

Discover deals from 900+ travel sites with momondo.

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.

7:07 am - 9:00 amONT Ontario-LIS Lisbon Humberto Delgado

18h 53m2 stops Atlanta Hartsfield-Jackson Boston Logan Intl

11:15 am - 10:11 pmLIS Lisbon Humberto Delgado-ONT Ontario

18h 56m2 stops Boston Logan Intl Salt Lake City

$620Delta

Tue, Oct 27 - Tue, Nov 3

7:07 am - 9:00 amONT Ontario-LIS Lisbon Humberto Delgado

18h 53m2 stops Atlanta Hartsfield-Jackson Boston Logan Intl

11:15 am - 10:11 pmLIS Lisbon Humberto Delgado-ONT Ontario

18h 56m2 stops Boston Logan Intl Salt Lake City

$620Delta

Tue, Oct 27 - Wed, Nov 4

11:56 am - 5:30 pmONT Ontario-LIS Lisbon Humberto Delgado

22h 34m2 stops Seattle/Tacoma Intl Paris Charles de Gaulle

5:30 am - 10:11 pmLIS Lisbon Humberto Delgado-ONT Ontario

24h 41m2 stops Paris Charles de Gaulle Salt Lake City

$696Delta

Thu, Oct 29 - Thu, Nov 5

7:07 am - 9:00 amONT Ontario-LIS Lisbon Humberto Delgado

18h 53m2 stops Atlanta Hartsfield-Jackson Boston Logan Intl

11:15 am - 10:11 pmLIS Lisbon Humberto Delgado-ONT Ontario

18h 56m2 stops Boston Logan Intl Salt Lake City

$720Delta

Sat, Oct 31 - Sat, Nov 7

7:05 am - 9:00 amONT Ontario-LIS Lisbon Humberto Delgado

17h 55m2 stops Atlanta Hartsfield-Jackson Boston Logan Intl

5:00 am - 5:15 pmLIS Lisbon Humberto Delgado-ONT Ontario

20h 15m2 stops Amsterdam Schiphol Seattle/Tacoma Intl

$720Delta

Mon, Nov 23 - Fri, Dec 4

7:07 am - 9:00 amONT Ontario-LIS Lisbon Humberto Delgado

17h 53m2 stops Atlanta Hartsfield-Jackson Boston Logan Intl

11:15 am - 11:49 pmLIS Lisbon Humberto Delgado-ONT Ontario

20h 34m2 stops Boston Logan Intl Salt Lake City

$720Delta

Sat, Nov 7 - Mon, Nov 16

7:07 am - 9:00 amONT Ontario-LIS Lisbon Humberto Delgado

17h 53m2 stops Atlanta Hartsfield-Jackson Boston Logan Intl

11:15 am - 10:16 pmLIS Lisbon Humberto Delgado-ONT Ontario

19h 01m2 stops Boston Logan Intl Salt Lake City

$720Delta

Sat, Nov 7 - Sat, Nov 14

6:40 pm - 8:10 amONT Ontario-LIS Lisbon Humberto Delgado

29h 30m2 stops San Francisco Newark

10:50 am - 3:23 pmLIS Lisbon Humberto Delgado-ONT Ontario

60h 33m2 stops Toronto Pearson Intl San Francisco

$727United Airlines

Wed, Dec 2 - Sun, Dec 6

6:00 am - 8:10 amONT Ontario-LIS Lisbon Humberto Delgado

18h 10m2 stops Houston George Bush Intcntl Newark

10:15 am - 9:40 pmLIS Lisbon Humberto Delgado-ONT Ontario

19h 25m2 stops Newark Houston George Bush Intcntl

$731United Airlines

Sun, Nov 1 - Wed, Nov 18

12:16 pm - 3:10 pmONT Ontario-LIS Lisbon Humberto Delgado

18h 54m2 stops Atlanta Hartsfield-Jackson Paris Charles de Gaulle

11:15 am - 11:49 pmLIS Lisbon Humberto Delgado-ONT Ontario

20h 34m2 stops Boston Logan Intl Salt Lake City

$740Delta

Fri, Nov 6 - Mon, Nov 16

Cheap last minute flights

Enter your travel dates to find the best prices.

6:00 am - 8:20 amONT Ontario-LIS Lisbon Humberto Delgado

18h 20m2 stops Houston George Bush Intcntl Newark

12:20 pm - 10:49 pmLIS Lisbon Humberto Delgado-ONT Ontario

18h 29m2 stops Washington, D.C. Dulles Intl Chicago O'Hare Intl

$1,523United Airlines

Sun, Sep 20 - Mon, Sep 28

10:39 pm - 12:55 pmONT Ontario-LIS Lisbon Humberto Delgado

30h 16m2 stops New York John F Kennedy Intl Reykjavik Keflavik Intl

3:00 pm - 11:16 amLIS Lisbon Humberto Delgado-ONT Ontario

28h 16m2 stops Reykjavik Keflavik Intl Seattle/Tacoma Intl

$1,849Multiple Airlines

Sun, Sep 20 - Tue, Sep 29

10:39 pm - 12:55 pmONT Ontario-LIS Lisbon Humberto Delgado

30h 16m2 stops New York John F Kennedy Intl Reykjavik Keflavik Intl

3:00 pm - 11:16 amLIS Lisbon Humberto Delgado-ONT Ontario

28h 16m2 stops Reykjavik Keflavik Intl Seattle/Tacoma Intl

$1,891Multiple Airlines

Sun, Sep 20 - Tue, Sep 29

10:39 pm - 12:55 pmONT Ontario-LIS Lisbon Humberto Delgado

30h 16m2 stops New York John F Kennedy Intl Reykjavik Keflavik Intl

3:00 pm - 11:16 amLIS Lisbon Humberto Delgado-ONT Ontario

28h 16m2 stops Reykjavik Keflavik Intl Seattle/Tacoma Intl

$2,014Multiple Airlines

Sun, Sep 20 - Tue, Sep 29

10:39 pm - 3:35 pmONT Ontario-LIS Lisbon Humberto Delgado

32h 56m2 stops New York John F Kennedy Intl Istanbul

5:55 am - 8:57 pmLIS Lisbon Humberto Delgado-ONT Ontario

47h 02m2 stops Istanbul New York John F Kennedy Intl

$2,113Turkish Airlines

Sun, Sep 20 - Tue, Sep 29

10:39 pm - 9:50 amONT Ontario-LIS Lisbon Humberto Delgado

27h 11m2 stops New York John F Kennedy Intl Istanbul

5:55 am - 8:57 pmLIS Lisbon Humberto Delgado-ONT Ontario

47h 02m2 stops Istanbul New York John F Kennedy Intl

$2,342Turkish Airlines

Fri, Sep 18 - Tue, Sep 22

10:39 pm - 3:35 pmONT Ontario-LIS Lisbon Humberto Delgado

32h 56m2 stops New York John F Kennedy Intl Istanbul

5:55 am - 8:57 pmLIS Lisbon Humberto Delgado-ONT Ontario

47h 02m2 stops Istanbul New York John F Kennedy Intl

$2,598Turkish Airlines

Sun, Sep 20 - Mon, Sep 28

10:39 pm - 9:50 amONT Ontario-LIS Lisbon Humberto Delgado

51h 11m2 stops New York John F Kennedy Intl Istanbul

6:00 am - 10:40 pmLIS Lisbon Humberto Delgado-ONT Ontario

24h 40m2 stops Istanbul Denver Intl

$2,606Multiple Airlines

Tue, Sep 15 - Fri, Dec 11

10:39 pm - 7:10 pmONT Ontario-LIS Lisbon Humberto Delgado

36h 31m2 stops New York John F Kennedy Intl Reykjavik Keflavik Intl

5:00 pm - 10:15 pmLIS Lisbon Humberto Delgado-ONT Ontario

37h 15m2 stops Reykjavik Keflavik Intl Denver Intl

$2,664Multiple Airlines

Tue, Sep 15 - Thu, Oct 1

10:39 pm - 3:35 pmONT Ontario-LIS Lisbon Humberto Delgado

56h 56m2 stops New York John F Kennedy Intl Istanbul

5:55 am - 8:27 pmLIS Lisbon Humberto Delgado-ONT Ontario

46h 32m2 stops Istanbul New York John F Kennedy Intl

$2,758Turkish Airlines

Sat, Sep 19 - Sat, Sep 26

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Delta flights from Ontario to Lisbon

Our best Delta deals on Ontario to Lisbon flight tickets

Delta

Oct 27

ONT7:07 amOntario

18h 53m

2 stops

LIS9:00 amLisbon Humberto Delgado

Nov 3

LIS11:15 amLisbon Humberto Delgado

18h 56m

2 stops

ONT10:11 pmOntario

$620

Delta

Oct 29

ONT11:56 amOntario

22h 34m

2 stops

LIS5:30 pmLisbon Humberto Delgado

Nov 5

LIS5:30 amLisbon Humberto Delgado

24h 41m

2 stops

ONT10:11 pmOntario

$696

Delta

Nov 7

ONT7:07 amOntario

17h 53m

2 stops

LIS9:00 amLisbon Humberto Delgado

Nov 14

LIS11:15 amLisbon Humberto Delgado

19h 01m

2 stops

ONT10:16 pmOntario

$720

Air Canada flights from Ontario to Lisbon

Our best Air Canada deals on Ontario to Lisbon flight tickets

Air Canada

Nov 18

ONT5:00 amOntario

19h 55m

2 stops

LIS8:55 amLisbon Humberto Delgado

Nov 26

LIS10:55 amLisbon Humberto Delgado

33h 38m

2 stops

ONT12:33 pmOntario

$789

Air Canada

Dec 2

ONT6:00 amOntario

16h 55m

2 stops

LIS6:55 amLisbon Humberto Delgado

Dec 6

LIS10:50 amLisbon Humberto Delgado

41h 48m

2 stops

ONT8:38 pmOntario

$835

Air Canada

Nov 23

ONT5:00 amOntario

21h 40m

2 stops

LIS10:40 amLisbon Humberto Delgado

Nov 27

LIS11:20 amLisbon Humberto Delgado

41h 31m

2 stops

ONT8:51 pmOntario

$1,242

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

OntarioLisbon

ONT Ontario - LIS Lisbon Humberto Delgado

ONTLIS

Ontario

Tue 10/27

7:07 am-9:00 am

2 stops18h 53m

Lisbon Humberto Delgado

Tue 11/3

11:15 am-10:11 pm

2 stops18h 56m

$620

OntarioLisbon

ONT Ontario - LIS Lisbon Humberto Delgado

ONTLIS

Ontario

Tue 10/27

7:07 am-9:00 am

2 stops18h 53m

Lisbon Humberto Delgado

Wed 11/4

11:15 am-10:11 pm

2 stops18h 56m

$620

OntarioLisbon

ONT Ontario - LIS Lisbon Humberto Delgado

ONTLIS

Ontario

Thu 10/29

11:56 am-5:30 pm

2 stops22h 34m

Lisbon Humberto Delgado

Thu 11/5

5:30 am-10:11 pm

2 stops24h 41m

$696

OntarioLisbon

ONT Ontario - LIS Lisbon Humberto Delgado

ONTLIS

Ontario

Sat 10/31

7:07 am-9:00 am

2 stops18h 53m

Lisbon Humberto Delgado

Sat 11/7

11:15 am-10:11 pm

2 stops18h 56m

$720

OntarioLisbon

ONT Ontario - LIS Lisbon Humberto Delgado

ONTLIS

Ontario

Mon 11/23

7:05 am-9:00 am

2 stops17h 55m

Lisbon Humberto Delgado

Fri 12/4

5:00 am-5:15 pm

2 stops20h 15m

$720

OntarioLisbon

ONT Ontario - LIS Lisbon Humberto Delgado

ONTLIS

Ontario

Sat 11/7

7:07 am-9:00 am

2 stops17h 53m

Lisbon Humberto Delgado

Mon 11/16

11:15 am-11:49 pm

2 stops20h 34m

$720

Quickest round-trip

OntarioLisbon

ONT Ontario - LIS Lisbon Humberto Delgado

ONTLIS

Ontario

Sat 11/7

7:07 am-9:00 am

2 stops17h 53m

Lisbon Humberto Delgado

Sat 11/14

11:15 am-10:16 pm

2 stops19h 01m

$720

OntarioLisbon

ONT Ontario - LIS Lisbon Humberto Delgado

ONTLIS

Ontario

Wed 12/2

6:40 pm-8:10 am

2 stops29h 30m

Lisbon Humberto Delgado

Sun 12/6

10:50 am-3:23 pm

2 stops60h 33m

$727

OntarioLisbon

ONT Ontario - LIS Lisbon Humberto Delgado

ONTLIS

Ontario

Sun 11/1

6:00 am-8:10 am

2 stops18h 10m

Lisbon Humberto Delgado

Wed 11/18

10:15 am-9:40 pm

2 stops19h 25m

$731

OntarioLisbon

ONT Ontario - LIS Lisbon Humberto Delgado

ONTLIS

Ontario

Fri 11/6

12:16 pm-3:10 pm

2 stops18h 54m

Lisbon Humberto Delgado

Mon 11/16

11:15 am-11:49 pm

2 stops20h 34m

$740

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 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 November is also very affordable. Most momondo users find prices during this month for around $676.

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 $609. 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 $881.

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 $767. If you have a flexible travel schedule, then try to avoid flying in the evening when prices are $943 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

Best Price Found	$375
Fastest flight time	16h 30m
Direct flights	None

The best one-way flight to Lisbon from Ontario in the past 72 hours is $375. The best round-trip flight deal from Ontario to Lisbon found on momondo in the last 72 hours is $620.

The fastest flight from Ontario to Lisbon takes 16h 30m

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 16h 30m, 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 September 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 10,213 reviews		Search United Airlines flights

Sintra

Figueira da Foz

Fátima

Nazaré

Setúbal

Estoril

Evora

Óbidos

Ericeira

Batalha

Leiria

Sesimbra

Zambujeira do Mar

Sines

Oeiras

Costa da Caparica

Comporta

Caldas da Rainha

Peniche

Tomar

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 $375

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 10/28. 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

Air Canada flights from Ontario to Lisbon

Our best Air Canada 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.

See travel insights to Lisbon from

How to get the cheapest flight ticket from Ontario to 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

Best Price Found

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.

Popular cities in Portugal

Popular flights according to clicks in the last 7 days on momondo

Fly to other destinations from Ontario

According to popular flight searches on momondo this year

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