$334 Cheap Delta flights Ontario (ONT) to Lisbon (LIS)

View $334 flight on Tue, Sep 23, 2025Opens in a new window

$334 Cheap Delta flights Ontario (ONT) to Lisbon (LIS)

Prices were available within the past 7 days and start at $334 for one-way flights and $854 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Sun, Sep 28 - Wed, Oct 8
ONT
Ontario
LIS
Lisbon
$854 Roundtrip, found 23 hours ago
$854
Roundtrip
found 23 hours ago
Select Delta flight, departing Sun, Sep 28 from Ontario to Lisbon, returning Wed, Oct 8, priced at $854 found 23 hours ago
Flights from Ontario (ONT) to Lisbon (LIS)
Origin airport
Los Angeles - Ontario Intl.
Destination airport
Humberto Delgado
Airlines serving
Air Canada, American Airlines, British Airways, Delta, Iberia, JetBlue Airways, KLM, United, Virgin Atlantic
Popular airline
United
Distance
9019 km