$517 Cheap Delta flights Boston (BOS) to Lisbon (LIS)

View $517 flight on Thu, Jan 1, 2026Opens in a new window

$517 Cheap Delta flights Boston (BOS) to Lisbon (LIS)

Prices were available within the past 7 days and start at $517 for one-way flights and $728 for roundtrip, for the period specified. Prices and availability are subject to change. Additional terms apply.
Delta
Mon, Jul 21 - Sun, Aug 3
BOS
Boston
LIS
Lisbon
$728
Roundtrip
Found 20 hours ago
Select Delta flight, departing Mon, Jul 21 from Boston to Lisbon, returning Sun, Aug 3, priced at $728 Found 20 hours ago
Delta
Thu, Jan 1 - Tue, Feb 3
BOS
Boston
LIS
Lisbon
$755
Roundtrip
Found 5 days ago
Select Delta flight, departing Thu, Jan 1 from Boston to Lisbon, returning Tue, Feb 3, priced at $755 Found 5 days ago
Flights from Boston (BOS) to Lisbon (LIS)
Origin airport
Logan Intl.
Destination airport
Humberto Delgado
Airlines serving
Aer Lingus, Air Canada, Air France, American Airlines, British Airways, Brussels Airlines, Delta, Finnair, Iberia, JetBlue Airways, KLM, Lufthansa, SATA International-Azores Airlines S.A., Swiss International Air Lines, TAP Portugal, United, Virgin Atlantic
Popular airline
TAP Portugal
Distance
5096 km
Average flight time
11 hours 26 mins