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Cheap flights from Ontario (ONT) to Lisbon (LIS)

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How to find the cheapest flight from Ontario (ONT) to Lisbon (LIS)

How to find the cheapest flight from Ontario (ONT) to Lisbon (LIS)
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How to find the cheapest flight from Ontario (ONT) to Lisbon (LIS)
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How to find the cheapest flight from Ontario (ONT) to Lisbon (LIS)
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Cheap flights from Ontario to Lisbon in July , August 2026

28 Jul - 19 Aug $ 1,202.00
ONT
Ontario
Alaska Airlines
2 STOPS
LIS
Lisbon
LIS
Lisbon
Alaska Airlines
2 STOPS
ONT
Ontario
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29 Jul - 11 Aug $ 1,207.00
ONT
Ontario
Alaska Airlines
2 STOPS
LIS
Lisbon
LIS
Lisbon
Alaska Airlines
2 STOPS
ONT
Ontario
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29 Jul - 09 Aug $ 3,795.00
ONT
Ontario
Turkish Airlines
2 STOPS
LIS
Lisbon
LIS
Lisbon
Turkish Airlines
2 STOPS
ONT
Ontario
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Last minute flights from Ontario to Lisbon

29 Jul - 01 Aug $ 1,354.00
ONT
Ontario
Alaska Airlines
2 STOPS
LIS
Lisbon
LIS
Lisbon
Alaska Airlines
2 STOPS
ONT
Ontario
Pick dates
27 Jul - 01 Aug $ 1,383.00
ONT
Ontario
Alaska Airlines
2 STOPS
LIS
Lisbon
LIS
Lisbon
Alaska Airlines
2 STOPS
ONT
Ontario
Pick dates
27 Jul - 01 Aug $ 1,455.00
ONT
Ontario
Alaska Airlines
2 STOPS
LIS
Lisbon
LIS
Lisbon
Alaska Airlines
2 STOPS
ONT
Ontario
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One-way flights to Lisbon from Ontario

6:10 AM - 8:25 PM
United Airlines
2 Stops
18h 10m
ONT - LIS
$ 667
Kiwi
Pick dates
6:10 AM - 8:25 PM
United Airlines
2 Stops
18h 10m
ONT - LIS
$ 671
Kiwi
Pick dates
6:10 AM - 8:25 PM
United Airlines
2 Stops
18h 10m
ONT - LIS
$ 671
Kiwi
Pick dates

How to find the cheapest flight from Ontario (ONT) to Lisbon (LIS)

Related info for your journey
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How to find the cheapest flight from Ontario (ONT) to Lisbon (LIS)
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.
How to find the cheapest flight from Ontario (ONT) to Lisbon (LIS)
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.