British Airways Flight 1577 Deals & Information (2026/2027)

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British Airways Flight 1577 Route Deals From $513

The cheapest prices found with in the last 7 days for return flights were $674 and $513 for one-way flights to Philadelphia Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Sat, Feb 7 - Wed, Feb 11
LIS
Humberto Delgado
PHL
Philadelphia Intl.
$674 Roundtrip, found 6 days ago
$674
Roundtrip
found 6 days ago
Select British Airways flight, departing Sat, Feb 7 from Humberto Delgado to Philadelphia Intl., returning Wed, Feb 11, priced at $674 found 6 days ago
Sun, Apr 19 - Sun, Apr 26
LIS
Humberto Delgado
PHL
Philadelphia Intl.
$676 Roundtrip, found 6 days ago
$676
Roundtrip
found 6 days ago
Select British Airways flight, departing Sun, Apr 19 from Humberto Delgado to Philadelphia Intl., returning Sun, Apr 26, priced at $676 found 6 days ago
Thu, Feb 5 - Wed, Feb 11
LIS
Humberto Delgado
PHL
Philadelphia Intl.
$676 Roundtrip, found 5 days ago
$676
Roundtrip
found 5 days ago
Select British Airways flight, departing Thu, Feb 5 from Humberto Delgado to Philadelphia Intl., returning Wed, Feb 11, priced at $676 found 5 days ago
Fri, Feb 13 - Tue, Feb 17
LIS
Humberto Delgado
PHL
Philadelphia Intl.
$681 Roundtrip, found 23 hours ago
$681
Roundtrip
found 23 hours ago
Select British Airways flight, departing Fri, Feb 13 from Humberto Delgado to Philadelphia Intl., returning Tue, Feb 17, priced at $681 found 23 hours ago
Thu, Oct 15 - Mon, Oct 19
LIS
Humberto Delgado
PHL
Philadelphia Intl.
$683 Roundtrip, found 6 hours ago
$683
Roundtrip
found 6 hours ago
Select British Airways flight, departing Thu, Oct 15 from Humberto Delgado to Philadelphia Intl., returning Mon, Oct 19, priced at $683 found 6 hours ago
Fri, Feb 13 - Tue, Feb 17
LIS
Humberto Delgado
PHL
Philadelphia Intl.
$690 Roundtrip, found 23 hours ago
$690
Roundtrip
found 23 hours ago
Select British Airways flight, departing Fri, Feb 13 from Humberto Delgado to Philadelphia Intl., returning Tue, Feb 17, priced at $690 found 23 hours ago
Thu, Oct 15 - Mon, Oct 19
LIS
Humberto Delgado
PHL
Philadelphia Intl.
$692 Roundtrip, found 6 hours ago
$692
Roundtrip
found 6 hours ago
Select British Airways flight, departing Thu, Oct 15 from Humberto Delgado to Philadelphia Intl., returning Mon, Oct 19, priced at $692 found 6 hours ago
Wed, Apr 29 - Sun, May 3
LIS
Humberto Delgado
PHL
Philadelphia Intl.
$694 Roundtrip, found 1 day ago
$694
Roundtrip
found 1 day ago
Select British Airways flight, departing Wed, Apr 29 from Humberto Delgado to Philadelphia Intl., returning Sun, May 3, priced at $694 found 1 day ago
Thu, Oct 15 - Mon, Oct 19
LIS
Humberto Delgado
PHL
Philadelphia Intl.
$696 Roundtrip, found 6 hours ago
$696
Roundtrip
found 6 hours ago
Select British Airways flight, departing Thu, Oct 15 from Humberto Delgado to Philadelphia Intl., returning Mon, Oct 19, priced at $696 found 6 hours ago
Sat, Feb 7 - Wed, Feb 11
LIS
Humberto Delgado
PHL
Philadelphia Intl.
$697 Roundtrip, found 6 days ago
$697
Roundtrip
found 6 days ago
Select British Airways flight, departing Sat, Feb 7 from Humberto Delgado to Philadelphia Intl., returning Wed, Feb 11, priced at $697 found 6 days ago
Sat, Feb 7 - Wed, Feb 11
LIS
Humberto Delgado
PHL
Philadelphia Intl.
$705 Roundtrip, found 6 days ago
$705
Roundtrip
found 6 days ago
Select British Airways flight, departing Sat, Feb 7 from Humberto Delgado to Philadelphia Intl., returning Wed, Feb 11, priced at $705 found 6 days ago
Tue, Mar 3 - Sun, Mar 8
LIS
Humberto Delgado
PHL
Philadelphia Intl.
$707 Roundtrip, found 11 hours ago
$707
Roundtrip
found 11 hours ago
Select British Airways flight, departing Tue, Mar 3 from Humberto Delgado to Philadelphia Intl., returning Sun, Mar 8, priced at $707 found 11 hours ago