$366 Cheap Delta flights San Diego (SAN) to Porto (OPO)

View $366 flight on Tue, Jun 2, 2026Opens in a new window

$366 Cheap Delta flights San Diego (SAN) to Porto (OPO)

Prices were available within the past 7 days and start at $366 for one-way flights and $768 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Tue, Jun 2 - Thu, Jun 11
SAN
San Diego
OPO
Porto
$768 Roundtrip, found 20 hours ago
$768
Roundtrip
found 20 hours ago
Select Delta flight, departing Tue, Jun 2 from San Diego to Porto, returning Thu, Jun 11, priced at $768 found 20 hours ago
Delta
Sat, May 30 - Tue, Jun 9
SAN
San Diego
OPO
Porto
$776 Roundtrip, found 20 hours ago
$776
Roundtrip
found 20 hours ago
Select Delta flight, departing Sat, May 30 from San Diego to Porto, returning Tue, Jun 9, priced at $776 found 20 hours ago
Delta
Tue, Jun 2 - Thu, Jun 11
SAN
San Diego
OPO
Porto
$785 Roundtrip, found 20 hours ago
$785
Roundtrip
found 20 hours ago
Select Delta flight, departing Tue, Jun 2 from San Diego to Porto, returning Thu, Jun 11, priced at $785 found 20 hours ago
Delta
Tue, Jun 2 - Thu, Jun 11
SAN
San Diego
OPO
Porto
$796 Roundtrip, found 20 hours ago
$796
Roundtrip
found 20 hours ago
Select Delta flight, departing Tue, Jun 2 from San Diego to Porto, returning Thu, Jun 11, priced at $796 found 20 hours ago
Delta
Sat, May 30 - Mon, Jun 8
SAN
San Diego
OPO
Porto
$804 Roundtrip, found 20 hours ago
$804
Roundtrip
found 20 hours ago
Select Delta flight, departing Sat, May 30 from San Diego to Porto, returning Mon, Jun 8, priced at $804 found 20 hours ago
Delta
Tue, Jun 2 - Thu, Jun 11
SAN
San Diego
OPO
Porto
$806 Roundtrip, found 20 hours ago
$806
Roundtrip
found 20 hours ago
Select Delta flight, departing Tue, Jun 2 from San Diego to Porto, returning Thu, Jun 11, priced at $806 found 20 hours ago
Delta
Tue, Jun 2 - Thu, Jun 11
SAN
San Diego
OPO
Porto
$813 Roundtrip, found 20 hours ago
$813
Roundtrip
found 20 hours ago
Select Delta flight, departing Tue, Jun 2 from San Diego to Porto, returning Thu, Jun 11, priced at $813 found 20 hours ago

Find the cheapest month to fly from San Diego (SAN) to Porto (OPO)

January is typically the cheapest month to fly

From $475 - $1,596 per traveler.

Travel information

Origin airport
San Diego Intl.
Destination airport
Dr. Francisco de Sa Carneiro
Airlines serving
Air Canada, Air France, American Airlines, Austrian Airlines, British Airways, Delta, Iberia, KLM, Lufthansa, Scandinavian Airlines, Swiss International Air Lines, United
Popular airline
Air Canada
Distance
8960 km

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