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 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 52% 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 October 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.

$286 Cheap Flights from Ontario to Lisbon in 2026/27

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.

7:05 am - 11:20 amONT Ontario-LIS Lisbon Humberto Delgado

20h 15m2 stops Atlanta Hartsfield-Jackson Paris Charles de Gaulle

5:00 am - 10:35 pmLIS Lisbon Humberto Delgado-ONT Ontario

25h 35m2 stops Amsterdam Schiphol Seattle/Tacoma Intl

$799Delta

Wed, Jan 13 - Sun, Jan 17

1:07 pm - 3:10 pmONT Ontario-LIS Lisbon Humberto Delgado

18h 03m2 stops Atlanta Hartsfield-Jackson Paris Charles de Gaulle

5:00 am - 10:34 pmLIS Lisbon Humberto Delgado-ONT Ontario

25h 34m2 stops Amsterdam Schiphol Seattle/Tacoma Intl

$799Delta

Wed, Jan 13 - Thu, Jan 21

7:05 am - 11:25 amONT Ontario-LIS Lisbon Humberto Delgado

20h 20m2 stops Atlanta Hartsfield-Jackson Paris Charles de Gaulle

5:00 am - 10:34 pmLIS Lisbon Humberto Delgado-ONT Ontario

25h 34m2 stops Amsterdam Schiphol Seattle/Tacoma Intl

$799Delta

Fri, Jan 15 - Thu, Jan 21

7:05 am - 8:00 amONT Ontario-LIS Lisbon Humberto Delgado

16h 55m2 stops Atlanta Hartsfield-Jackson New York John F Kennedy Intl

5:00 am - 10:34 pmLIS Lisbon Humberto Delgado-ONT Ontario

25h 34m2 stops Amsterdam Schiphol Seattle/Tacoma Intl

$800Delta

Sat, Jan 9 - Thu, Jan 21

7:05 am - 8:00 amONT Ontario-LIS Lisbon Humberto Delgado

16h 55m2 stops Atlanta Hartsfield-Jackson New York John F Kennedy Intl

5:00 am - 10:35 pmLIS Lisbon Humberto Delgado-ONT Ontario

25h 35m2 stops Amsterdam Schiphol Seattle/Tacoma Intl

$800Delta

Sat, Jan 9 - Sat, Jan 16

7:05 am - 8:00 amONT Ontario-LIS Lisbon Humberto Delgado

16h 55m2 stops Atlanta Hartsfield-Jackson New York LaGuardia

5:00 am - 10:35 pmLIS Lisbon Humberto Delgado-ONT Ontario

25h 35m2 stops Amsterdam Schiphol Seattle/Tacoma Intl

$800Delta

Wed, Jan 6 - Sun, Jan 17

7:05 am - 8:00 amONT Ontario-LIS Lisbon Humberto Delgado

16h 55m2 stops Atlanta Hartsfield-Jackson New York LaGuardia

5:00 am - 10:34 pmLIS Lisbon Humberto Delgado-ONT Ontario

25h 34m2 stops Amsterdam Schiphol Seattle/Tacoma Intl

$800Delta

Fri, Jan 8 - Sat, Jan 23

7:05 am - 8:00 amONT Ontario-LIS Lisbon Humberto Delgado

16h 55m2 stops Atlanta Hartsfield-Jackson New York John F Kennedy Intl

5:00 am - 10:34 pmLIS Lisbon Humberto Delgado-ONT Ontario

25h 34m2 stops Amsterdam Schiphol Seattle/Tacoma Intl

$800Delta

Thu, Jan 7 - Sat, Jan 23

7:00 am - 8:10 amONT Ontario-LIS Lisbon Humberto Delgado

17h 10m2 stops Chicago O'Hare Intl Newark

5:00 am - 8:38 pmLIS Lisbon Humberto Delgado-ONT Ontario

23h 38m2 stops Frankfurt am Main San Francisco

$801United Airlines

Tue, Dec 1 - Wed, Dec 9

1:42 pm - 6:55 amONT Ontario-LIS Lisbon Humberto Delgado

33h 13m2 stops Denver Intl Montreal Pierre Elliott Trudeau Intl

11:20 am - 6:50 pmLIS Lisbon Humberto Delgado-ONT Ontario

39h 30m2 stops Montreal Pierre Elliott Trudeau Intl Chicago O'Hare Intl

$803United Airlines

Tue, Jan 5 - Tue, Jan 19

Cheap last minute flights

Enter your travel dates to find the best prices.

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

18h 10m2 stops Houston George Bush Intcntl Newark

10:15 am - 8:51 pmLIS Lisbon Humberto Delgado-ONT Ontario

18h 36m2 stops Newark Denver Intl

$898United Airlines

Thu, Nov 5 - Tue, Nov 17

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

$898United Airlines

Thu, Nov 5 - Thu, Nov 12

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

$942United Airlines

Thu, Nov 5 - Thu, Nov 12

12:01 pm - 4:10 pmONT Ontario-LIS Lisbon Humberto Delgado

20h 09m2 stops San Francisco Kastrup Copenhagen

4:55 pm - 7:30 pmLIS Lisbon Humberto Delgado-ONT Ontario

34h 35m2 stops Kastrup Copenhagen San Francisco

$961Multiple Airlines

Mon, Nov 2 - Wed, Nov 11

12:01 pm - 3:55 pmONT Ontario-LIS Lisbon Humberto Delgado

19h 54m2 stops San Francisco Kastrup Copenhagen

6:45 pm - 7:30 pmLIS Lisbon Humberto Delgado-ONT Ontario

32h 45m2 stops Kastrup Copenhagen San Francisco

$973Multiple Airlines

Thu, Nov 5 - Sun, Nov 8

8:35 pm - 4:10 pmONT Ontario-LIS Lisbon Humberto Delgado

35h 35m3 stops Las Vegas Harry Reid Intl San Francisco Kastrup Copenhagen

6:45 pm - 7:30 pmLIS Lisbon Humberto Delgado-ONT Ontario

32h 45m2 stops Kastrup Copenhagen San Francisco

$994Multiple Airlines

Thu, Nov 5 - Sun, Nov 8

8:35 pm - 4:10 pmONT Ontario-LIS Lisbon Humberto Delgado

35h 35m3 stops Las Vegas Harry Reid Intl San Francisco Kastrup Copenhagen

6:45 pm - 7:30 pmLIS Lisbon Humberto Delgado-ONT Ontario

32h 45m2 stops Kastrup Copenhagen San Francisco

$1,069Multiple Airlines

Sun, Nov 1 - Sun, Nov 8

8:35 pm - 9:20 amONT Ontario-LIS Lisbon Humberto Delgado

28h 45m3 stops Las Vegas Harry Reid Intl San Francisco Toronto Pearson Intl

5:00 am - 7:30 pmLIS Lisbon Humberto Delgado-ONT Ontario

22h 30m2 stops Frankfurt am Main San Francisco

$1,111Multiple Airlines

Mon, Nov 2 - Thu, Nov 12

9:25 am - 10:20 amONT Ontario-LIS Lisbon Humberto Delgado

16h 55m2 stops San Francisco Washington, D.C. Dulles Intl

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

19h 25m2 stops Newark Houston George Bush Intcntl

$1,116United Airlines

Wed, Nov 4 - Sat, Nov 21

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

$1,252United Airlines

Mon, Nov 2 - Tue, Nov 10

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United Airlines flights from Ontario to Lisbon

Our best United Airlines deals on Ontario to Lisbon flight tickets

United Airlines

Dec 1

ONT7:00 amOntario

17h 10m

2 stops

LIS8:10 amLisbon Humberto Delgado

Dec 9

LIS5:00 amLisbon Humberto Delgado

23h 38m

2 stops

ONT8:38 pmOntario

$801

United Airlines

Jan 5

ONT1:42 pmOntario

33h 13m

2 stops

LIS6:55 amLisbon Humberto Delgado

Jan 19

LIS11:20 amLisbon Humberto Delgado

39h 30m

2 stops

ONT6:50 pmOntario

$803

United Airlines

Dec 13

ONT5:45 amOntario

18h 25m

2 stops

LIS8:10 amLisbon Humberto Delgado

Dec 23

LIS11:55 amLisbon Humberto Delgado

18h 58m

2 stops

ONT10:53 pmOntario

$814

Delta flights from Ontario to Lisbon

Our best Delta deals on Ontario to Lisbon flight tickets

Delta

Jan 13

ONT1:07 pmOntario

18h 03m

2 stops

LIS3:10 pmLisbon Humberto Delgado

Jan 21

LIS5:00 amLisbon Humberto Delgado

25h 34m

2 stops

ONT10:34 pmOntario

$799

Delta

Jan 5

ONT7:05 amOntario

16h 55m

2 stops

LIS8:00 amLisbon Humberto Delgado

Jan 17

LIS5:00 amLisbon Humberto Delgado

25h 35m

2 stops

ONT10:35 pmOntario

$800

Delta

Jan 13

ONT1:07 pmOntario

18h 03m

2 stops

LIS3:10 pmLisbon Humberto Delgado

Jan 19

LIS5:30 amLisbon Humberto Delgado

18h 57m

2 stops

ONT4:27 pmOntario

$807

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

OntarioLisbon

ONT Ontario - LIS Lisbon Humberto Delgado

ONTLIS

Ontario

Wed 1/13

7:05 am-11:20 am

2 stops20h 15m

Lisbon Humberto Delgado

Sun 1/17

5:00 am-10:35 pm

2 stops25h 35m

$799

OntarioLisbon

ONT Ontario - LIS Lisbon Humberto Delgado

ONTLIS

Ontario

Wed 1/13

1:07 pm-3:10 pm

2 stops18h 03m

Lisbon Humberto Delgado

Thu 1/21

5:00 am-10:34 pm

2 stops25h 34m

$799

OntarioLisbon

ONT Ontario - LIS Lisbon Humberto Delgado

ONTLIS

Ontario

Fri 1/15

7:05 am-11:25 am

2 stops20h 20m

Lisbon Humberto Delgado

Thu 1/21

5:00 am-10:34 pm

2 stops25h 34m

$799

OntarioLisbon

ONT Ontario - LIS Lisbon Humberto Delgado

ONTLIS

Ontario

Sat 1/9

7:05 am-8:00 am

2 stops16h 55m

Lisbon Humberto Delgado

Thu 1/21

5:00 am-10:34 pm

2 stops25h 34m

$800

OntarioLisbon

ONT Ontario - LIS Lisbon Humberto Delgado

ONTLIS

Ontario

Sat 1/9

7:05 am-8:00 am

2 stops16h 55m

Lisbon Humberto Delgado

Sat 1/16

5:00 am-10:35 pm

2 stops25h 35m

$800

OntarioLisbon

ONT Ontario - LIS Lisbon Humberto Delgado

ONTLIS

Ontario

Wed 1/6

7:05 am-8:00 am

2 stops16h 55m

Lisbon Humberto Delgado

Sun 1/17

5:00 am-10:35 pm

2 stops25h 35m

$800

OntarioLisbon

ONT Ontario - LIS Lisbon Humberto Delgado

ONTLIS

Ontario

Fri 1/8

7:05 am-8:00 am

2 stops16h 55m

Lisbon Humberto Delgado

Sat 1/23

5:00 am-10:34 pm

2 stops25h 34m

$800

OntarioLisbon

ONT Ontario - LIS Lisbon Humberto Delgado

ONTLIS

Ontario

Thu 1/7

7:05 am-8:00 am

2 stops16h 55m

Lisbon Humberto Delgado

Sat 1/23

5:00 am-10:34 pm

2 stops25h 34m

$800

Quickest round-trip

OntarioLisbon

ONT Ontario - LIS Lisbon Humberto Delgado

ONTLIS

Ontario

Tue 12/1

7:00 am-8:10 am

2 stops17h 10m

Lisbon Humberto Delgado

Wed 12/9

5:00 am-8:38 pm

2 stops23h 38m

$801

OntarioLisbon

ONT Ontario - LIS Lisbon Humberto Delgado

ONTLIS

Ontario

Tue 1/5

1:42 pm-6:55 am

2 stops33h 13m

Lisbon Humberto Delgado

Tue 1/19

11:20 am-6:50 pm

2 stops39h 30m

$803

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 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 $687. 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 $914.

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 $800. If you have a flexible travel schedule, then try to avoid flying in the evening when prices are $962 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	$286
Fastest flight time	16h 55m
Direct flights	None

The best one-way flight to Lisbon from Ontario in the past 72 hours is $286. The best round-trip flight deal from Ontario to Lisbon found on momondo in the last 72 hours is $799.

The fastest flight from Ontario to Lisbon takes 16h 55m

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 55m, 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 October 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 $511	Free Cancellation	Rating 7.3 10,451 reviews		Search United Airlines flights

Sintra

Setúbal

Figueira da Foz

Nazaré

Evora

Estoril

Fátima

Óbidos

Ericeira

Sesimbra

Leiria

Batalha

Sines

Caldas da Rainha

Costa da Caparica

Comporta

Oeiras

Tomar

Torres Vedras

Peniche

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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Cheap flights from Ontario to Lisbon from $286

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 11/9. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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United Airlines flights from Ontario to Lisbon

Our best United Airlines deals on Ontario to Lisbon flight tickets

Delta flights from Ontario to Lisbon

Our best Delta deals on Ontario to Lisbon flight tickets

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How to get the cheapest flight ticket from Ontario 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

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