$286+ Cheap flights from Ontario (ONT) to Lisbon (LIS)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/9. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — LIS
Nov 29 — Dec 61
Round-trip
1 adult, Economy
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Find cheap flights from Ontario to Lisbon with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
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Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Ontario to Lisbon
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Cheapest flights from Ontario to LisbonExplore the most affordable flight options available from Ontario to Lisbon. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 30, 2026.
Explore the most affordable flight options available from Ontario to Lisbon. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 30, 2026.
This United Airlines deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/17:00 am -
2 stops17h 10m
Wed 12/95:00 am -
2 stops23h 38m
Deal found 10/29![United Airlines logo]()
$801
This United Airlines deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/136:00 am -
2 stops20h 05m
Sun 12/2010:50 am -
2 stops43h 21m
Deal found 10/29![United Airlines logo]()
$807
This Mytrip deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/28:00 am -
2 stops19h 30m
Wed 12/910:00 am -
1 stop21h 23m
Deal found 10/28![Multiple Airlines logo]()
$808
This United Airlines deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/135:45 am -
2 stops18h 25m
Wed 12/2311:55 am -
2 stops18h 58m
Deal found 10/29![United Airlines logo]()
$814
This United Airlines deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/25:45 am -
2 stops18h 25m
Sun 12/610:15 am -
2 stops18h 56m
Deal found 10/29![United Airlines logo]()
$823
This United Airlines deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/289:25 am -
2 stops15h 45m
Mon 11/910:15 am -
2 stops19h 25m
Deal found 10/27![United Airlines logo]()
$832
This Air Canada deal was found by Cheapflights users on 10/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/269:25 am -
2 stops15h 55m
Thu 12/1010:55 am -
2 stops18h 16m
Deal found 10/30![Multiple Airlines logo]()
$836
This United Airlines deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/145:45 am -
2 stops18h 25m
Wed 12/2311:55 am -
2 stops18h 58m
Deal found 10/29![United Airlines logo]()
$858
This FlightHub deal was found by Cheapflights users on 10/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/12:09 pm -
2 stops19h 36m
Mon 12/710:40 am -
2 stops21h 08m
Deal found 10/25![British Airways logo]()
$862
This Mytrip deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/912:01 pm -
2 stops20h 09m
Wed 11/184:55 pm -
2 stops34h 35m
Deal found 10/28![Multiple Airlines logo]()
$864
This United Airlines deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/66:00 am -
2 stops18h 10m
Wed 11/1110:15 am -
2 stops19h 25m
Deal found 10/29![United Airlines logo]()
$876
Best flights from Ontario to LisbonDiscover carefully curated flight deals from Ontario to Lisbon that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 30, 2026.
Discover carefully curated flight deals from Ontario to Lisbon that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 30, 2026.
This Delta deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 1/131:07 pm -
2 stops18h 03m
Thu 1/215:00 am -
2 stops25h 34m
Deal found 10/29![Delta logo]()
$799
This United Airlines deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 1/51:42 pm -
2 stops33h 13m
Tue 1/1911:20 am -
2 stops39h 30m
Deal found 10/27![United Airlines logo]()
$803
This Delta deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 1/127:05 am -
2 stops16h 55m
Thu 1/215:00 am -
2 stops25h 34m
Deal found 10/29![Delta logo]()
$800
This United Airlines deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/25:45 am -
2 stops18h 25m
Sun 12/610:15 am -
2 stops18h 56m
Deal found 10/29![United Airlines logo]()
$823
This Delta deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/307:06 am -
2 stops16h 54m
Mon 1/1110:00 am -
2 stops19h 44m
Deal found 10/26![Delta logo]()
$823
This United Airlines deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 1/86:00 am -
2 stops18h 10m
Wed 1/2010:15 am -
2 stops18h 45m
Deal found 10/27![United Airlines logo]()
$828
This United Airlines deal was found by Cheapflights users on 10/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/176:00 am -
2 stops18h 20m
Thu 4/2910:25 am -
2 stops18h 56m
Deal found 10/25![United Airlines logo]()
$837
This United Airlines deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/249:25 am -
2 stops16h 40m
Wed 12/210:15 am -
2 stops19h 44m
Deal found 10/27![United Airlines logo]()
$858
This United Airlines deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/136:00 am -
2 stops18h 20m
Sat 4/2410:25 am -
2 stops18h 56m
Deal found 10/29![United Airlines logo]()
$971
This United Airlines deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/196:00 am -
2 stops18h 20m
Sat 4/2410:25 am -
2 stops18h 56m
Deal found 10/29![United Airlines logo]()
$980
This United Airlines deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/55:45 am -
2 stops18h 25m
Sun 12/2012:20 pm -
2 stops18h 11m
Deal found 10/29![United Airlines logo]()
$1,072
This United Airlines deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/145:45 am -
2 stops18h 25m
Thu 12/2412:20 pm -
2 stops18h 11m
Deal found 10/26![United Airlines logo]()
$1,098
Last-minute flights from Ontario to LisbonDiscover last-minute flight deals from Ontario to Lisbon. Data last updated October 30, 2026 and is based on user searches.
Discover last-minute flight deals from Ontario to Lisbon. Data last updated October 30, 2026 and is based on user searches.
This FlightHub deal was found by Cheapflights users on 10/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals ”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/510:30 am -
2 stops20h 20m
Sat 11/147:00 am -
2 stops23h 12m
Deal found 10/30![British Airways logo]()
$897
This United Airlines deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/56:00 am -
2 stops18h 10m
Tue 11/1710:15 am -
2 stops18h 36m
Deal found 10/29![United Airlines logo]()
$898
This United Airlines deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/56:00 am -
2 stops18h 10m
Thu 11/1210:15 am -
2 stops19h 25m
Deal found 10/28![United Airlines logo]()
$942
This United Airlines deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/66:00 am -
2 stops18h 10m
Wed 11/1110:15 am -
2 stops19h 25m
Deal found 10/29![United Airlines logo]()
$876
This United Airlines deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/66:00 am -
2 stops18h 10m
Fri 11/1310:15 am -
2 stops18h 36m
Deal found 10/26![United Airlines logo]()
$878
This Mytrip deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/912:01 pm -
2 stops20h 09m
Wed 11/184:55 pm -
2 stops34h 35m
Deal found 10/28![Multiple Airlines logo]()
$864
This Mytrip deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/146:30 am -
2 stops20h 00m
Sat 11/212:20 pm -
2 stops35h 03m
Deal found 10/26![Multiple Airlines logo]()
$948
This United Airlines deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/249:25 am -
2 stops16h 40m
Wed 12/210:15 am -
2 stops19h 44m
Deal found 10/27![United Airlines logo]()
$858
This Air Canada deal was found by Cheapflights users on 10/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/269:25 am -
2 stops15h 55m
Thu 12/1010:55 am -
2 stops18h 16m
Deal found 10/30![Multiple Airlines logo]()
$836
This Mytrip deal was found by Cheapflights users on 10/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/2910:40 pm -
2 stops29h 00m
Fri 12/1111:15 am -
1 stop20h 08m
Deal found 10/25![Multiple Airlines logo]()
$944
This Mytrip deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/308:15 am -
2 stops19h 25m
Mon 12/79:40 am -
1 stop21h 43m
Deal found 10/28![Multiple Airlines logo]()
$937
One-way flights from Ontario to LisbonSearch for one-way flight options from Ontario to Lisbon. Find affordable one-way fares based on user searches. Data last updated October 30, 2026.
Search for one-way flight options from Ontario to Lisbon. Find affordable one-way fares based on user searches. Data last updated October 30, 2026.
This Kiwi.com deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/912:01 pm -
1 stop15h 39m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/27![Multiple Airlines logo]()
$286
This Mytrip deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/2210:40 pm -
2 stops29h 00m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/26![Multiple Airlines logo]()
$344
This Mytrip deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/266:45 am -
3 stops25h 10m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/28![Multiple Airlines logo]()
$359
This Kiwi.com deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/1110:35 am -
2 stops16h 55m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/27![Multiple Airlines logo]()
$367
This Kiwi.com deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/105:07 pm -
2 stops34h 23m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/27![Multiple Airlines logo]()
$369
This Kiwi.com deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/711:52 am -
2 stops38h 23m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/27![Multiple Airlines logo]()
$371
This United Airlines deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/106:00 am -
2 stops18h 10m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/28![United Airlines logo]()
$389
This Mytrip deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/2410:40 pm -
3 stops30h 20m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/28![Multiple Airlines logo]()
$397
This Mytrip deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/256:45 am -
2 stops22h 05m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/29![Multiple Airlines logo]()
$405
This United Airlines deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/206:00 am -
2 stops18h 20m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/29![United Airlines logo]()
$424
Find flight deals from Ontario to Lisbon
Discover tips and strategies to find the most affordable flight options for your journey from Ontario (ONT) to Lisbon (LIS). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated October 30, 2026.
Most accurate provider | Ovago 3 stars |
|---|---|
Most trusted provider | Ovago 3 stars |
Round-trip from | $799 (Delta) |
One-way from | $286 (Kiwi.com) |
Popular in | June |
Cheapest in | January |
Average price | $876 |
Cheapflights 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, Cheapflights users made 7,457,451 searches. Data last updated October 30, 2026.
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
Cheapest round-trip
OntarioLisbon
ONT Ontario - LIS Lisbon Humberto Delgado
ONTLIS
Ontario
Tue 4/20
6:00 am-8:20 am
2 stops18h 20m
Lisbon Humberto Delgado
Wed 12/31
12:00 am-3:00 pm
Nonstop0h 00m
$424
OntarioLisbon
ONT Ontario - LIS Lisbon Humberto Delgado
ONTLIS
Ontario
Fri 3/12
4:25 pm-10:30 pm
2 stops22h 05m
Lisbon Humberto Delgado
Wed 12/31
12:00 am-3:00 pm
Nonstop0h 00m
$456
OntarioLisbon
ONT Ontario - LIS Lisbon Humberto Delgado
ONTLIS
Ontario
Mon 11/16
6:30 am-12:45 pm
2 stops22h 15m
Lisbon Humberto Delgado
Wed 12/31
12:00 am-3:00 pm
Nonstop0h 00m
$544
OntarioLisbon
ONT Ontario - LIS Lisbon Humberto Delgado
ONTLIS
Ontario
Tue 11/24
6:00 am-8:10 am
2 stops18h 10m
Lisbon Humberto Delgado
Wed 12/31
12:00 am-3:00 pm
Nonstop0h 00m
$588
Quickest round-trip
OntarioLisbon
ONT Ontario - LIS Lisbon Humberto Delgado
ONTLIS
Ontario
Mon 11/23
7:00 am-8:10 am
2 stops17h 10m
Lisbon Humberto Delgado
Wed 12/31
12:00 am-3:00 pm
Nonstop0h 00m
$588
OntarioLisbon
ONT Ontario - LIS Lisbon Humberto Delgado
ONTLIS
Ontario
Wed 11/11
7:05 am-9:00 am
2 stops17h 55m
Lisbon Humberto Delgado
Wed 12/31
12:00 am-3:00 pm
Nonstop0h 00m
$606
OntarioLisbon
ONT Ontario - LIS Lisbon Humberto Delgado
ONTLIS
Ontario
Tue 11/10
7:05 am-9:00 am
2 stops17h 55m
Lisbon Humberto Delgado
Wed 12/31
12:00 am-3:00 pm
Nonstop0h 00m
$606
OntarioLisbon
ONT Ontario - LIS Lisbon Humberto Delgado
ONTLIS
Ontario
Mon 11/9
7:05 am-9:00 am
2 stops17h 55m
Lisbon Humberto Delgado
Wed 12/31
12:00 am-3:00 pm
Nonstop0h 00m
$606
OntarioLisbon
ONT Ontario - LIS Lisbon Humberto Delgado
ONTLIS
Ontario
Fri 11/13
7:05 am-9:00 am
2 stops17h 55m
Lisbon Humberto Delgado
Wed 12/31
12:00 am-3:00 pm
Nonstop0h 00m
$606
OntarioLisbon
ONT Ontario - LIS Lisbon Humberto Delgado
ONTLIS
Ontario
Fri 1/8
6:00 am-8:00 am
2 stops18h 00m
Lisbon Humberto Delgado
Wed 12/31
12:00 am-3:00 pm
Nonstop0h 00m
$606
Showing 1-10 of 22 resultsSorted by cheapest first
Compare providers for flights from Ontario to Lisbon
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Ontario to Lisbon in October.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Ontario-Lisbon flights, users find the pricing of Ovago to be most consistent on Cheapflights vs. Ovago Users can find the same prices on Ontario-Lisbon flight deals on Cheapflights vs. Ovago >95% of the time. Price accuracy is based on data collected from Ontario-Lisbon flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Ontario-Lisbon flights, Cheapflights users trust Ovago the most. Ovago has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Ontario-Lisbon flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
Best time to book a flight from Ontario to Lisbon
Have a flexible travel schedule? Discover the best time to fly to Lisbon from Ontario with our price prediction graph.
ONT-LIS
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Reviews of airlines servicing Lisbon
Get insights into the airlines that provide service to Lisbon. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Lisbon. Reviews last updated October 30, 2026.
See what other customers who have flown with United Airlines from Ontario to Lisbon have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Comfort
7.3
Overall
7.3
Boarding
7.7
Entertainment
7.1
Food
6.7
Crew
8.1
Reviews
1 / 20
4.0
OkayDynasty,May 2026
LAX - EWR
Comfort
7.3
Overall
7.3
Boarding
7.7
Entertainment
7.1
Food
6.7
Crew
8.1
Reviews
1 / 20
4.0
OkayDynasty,May 2026
LAX - EWR
Related info for your journey
Find useful and relevant information for your journey from Ontario to Lisbon. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near Lisbon?
Book flights to Lisbon if you plan to visit one of these locationsFátima
Ericeira
Oeiras
Torres Vedras
Beja
Nazaré
Colares
Sesimbra
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Ontario and Lisbon flights
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Top airline flying from Ontario to Lisbon
Discover the top airline that operate flights from Ontario to Lisbon. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 7,457,451 searches. Data last updated October 30, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$511 | Average$727 | FlexibilityNo cancel fee | On-time69% |