$355 Cheap United flights Ontario (ONT) to Lisbon (LIS)

$355 Cheap United flights Ontario (ONT) to Lisbon (LIS)

Prices were available within the past 7 days and start at $355 for one-way flights and $686 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Sun, Sep 28 - Wed, Oct 8

ONT

Ontario

LIS

Lisbon

$686 Roundtrip, found 15 hours ago

$686

Roundtrip

found 15 hours ago

Select United flight, departing Sun, Sep 28 from Ontario to Lisbon, returning Wed, Oct 8, priced at $686 found 15 hours ago

Mon, Sep 29 - Thu, Oct 9

ONT

Ontario

LIS

Lisbon

$690 Roundtrip, found 15 hours ago

$690

Roundtrip

found 15 hours ago

Select United flight, departing Mon, Sep 29 from Ontario to Lisbon, returning Thu, Oct 9, priced at $690 found 15 hours ago

Sun, Sep 28 - Thu, Oct 9

ONT

Ontario

LIS

Lisbon

$692 Roundtrip, found 15 hours ago

$692

Roundtrip

found 15 hours ago

Select United flight, departing Sun, Sep 28 from Ontario to Lisbon, returning Thu, Oct 9, priced at $692 found 15 hours ago

Tue, Sep 30 - Wed, Oct 8

ONT

Ontario

LIS

Lisbon

$694 Roundtrip, found 15 hours ago

$694

Roundtrip

found 15 hours ago

Select United flight, departing Tue, Sep 30 from Ontario to Lisbon, returning Wed, Oct 8, priced at $694 found 15 hours ago

Mon, Sep 22 - Fri, Oct 3

ONT

Ontario

LIS

Lisbon

$699 Roundtrip, found 15 hours ago

$699

Roundtrip

found 15 hours ago

Select United flight, departing Mon, Sep 22 from Ontario to Lisbon, returning Fri, Oct 3, priced at $699 found 15 hours ago

Mon, Sep 29 - Thu, Oct 9

ONT

Ontario

LIS

Lisbon

$707 Roundtrip, found 15 hours ago

$707

Roundtrip

found 15 hours ago

Select United flight, departing Mon, Sep 29 from Ontario to Lisbon, returning Thu, Oct 9, priced at $707 found 15 hours ago