Flights from San Francisco to Alvalade

Cheapest flights from San Francisco

These prices were available within the past 7 days. Prices quoted are per person, round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Wed, Jul 30 - Tue, Aug 12

SFO

San Francisco Intl.

LIS

Humberto Delgado

$738 Roundtrip, found 1 day ago

$738

Roundtrip

found 1 day ago

Select Air Canada flight, departing Wed, Jul 30 from San Francisco Intl. to Humberto Delgado, returning Tue, Aug 12, priced at $738 found 1 day ago

Wed, Jul 2 - Wed, Jul 9

SFO

San Francisco Intl.

LIS

Humberto Delgado

$742 Roundtrip, found 6 days ago

$742

Roundtrip

found 6 days ago

Select Air Canada flight, departing Wed, Jul 2 from San Francisco Intl. to Humberto Delgado, returning Wed, Jul 9, priced at $742 found 6 days ago

Mon, Jul 14 - Wed, Jul 23

SFO

San Francisco Intl.

LIS

Humberto Delgado

$742 Roundtrip, found 5 days ago

$742

Roundtrip

found 5 days ago

Select United flight, departing Mon, Jul 14 from San Francisco Intl. to Humberto Delgado, returning Wed, Jul 23, priced at $742 found 5 days ago

Wed, Jul 30 - Thu, Aug 14

SFO

San Francisco Intl.

LIS

Humberto Delgado

$744 Roundtrip, found 1 day ago

$744

Roundtrip

found 1 day ago

Select Air Canada flight, departing Wed, Jul 30 from San Francisco Intl. to Humberto Delgado, returning Thu, Aug 14, priced at $744 found 1 day ago

Wed, Jul 30 - Fri, Aug 15

SFO

San Francisco Intl.

LIS

Humberto Delgado

$752 Roundtrip, found 1 day ago

$752

Roundtrip

found 1 day ago

Select Delta flight, departing Wed, Jul 30 from San Francisco Intl. to Humberto Delgado, returning Fri, Aug 15, priced at $752 found 1 day ago

Mon, Aug 4 - Mon, Aug 11

SFO

San Francisco Intl.

LIS

Humberto Delgado

$797 Roundtrip, found 1 day ago

$797

Roundtrip

found 1 day ago

Select British Airways flight, departing Mon, Aug 4 from San Francisco Intl. to Humberto Delgado, returning Mon, Aug 11, priced at $797 found 1 day ago

Sat, Aug 2 - Wed, Aug 13

SFO

San Francisco Intl.

LIS

Humberto Delgado

$817 Roundtrip, found 18 hours ago

$817

Roundtrip

found 18 hours ago

Select American Airlines flight, departing Sat, Aug 2 from San Francisco Intl. to Humberto Delgado, returning Wed, Aug 13, priced at $817 found 18 hours ago

Sat, Aug 2 - Wed, Aug 13

SFO

San Francisco Intl.

LIS

Humberto Delgado

$828 Roundtrip, found 18 hours ago

$828

Roundtrip

found 18 hours ago

Select Swiss International Air Lines flight, departing Sat, Aug 2 from San Francisco Intl. to Humberto Delgado, returning Wed, Aug 13, priced at $828 found 18 hours ago

Sat, Aug 2 - Wed, Aug 13

SFO

San Francisco Intl.

LIS

Humberto Delgado

$861 Roundtrip, found 18 hours ago

$861

Roundtrip

found 18 hours ago

Select Virgin Atlantic flight, departing Sat, Aug 2 from San Francisco Intl. to Humberto Delgado, returning Wed, Aug 13, priced at $861 found 18 hours ago

Sat, Aug 2 - Wed, Aug 13

SFO

San Francisco Intl.

LIS

Humberto Delgado

$909 Roundtrip, found 18 hours ago

$909

Roundtrip

found 18 hours ago

Select KLM flight, departing Sat, Aug 2 from San Francisco Intl. to Humberto Delgado, returning Wed, Aug 13, priced at $909 found 18 hours ago

Fri, Aug 1 - Thu, Aug 14

SFO

San Francisco Intl.

LIS

Humberto Delgado

$947 Roundtrip, found 1 day ago

$947

Roundtrip

found 1 day ago

Select Lufthansa flight, departing Fri, Aug 1 from San Francisco Intl. to Humberto Delgado, returning Thu, Aug 14, priced at $947 found 1 day ago

Tue, Aug 5 - Sat, Aug 16

SFO

San Francisco Intl.

LIS

Humberto Delgado

$1,056 Roundtrip, found 1 day ago

$1,056

Roundtrip

found 1 day ago

Select TAP Portugal flight, departing Tue, Aug 5 from San Francisco Intl. to Humberto Delgado, returning Sat, Aug 16, priced at $1,056 found 1 day ago

Wed, Jul 16 - Mon, Jul 21

SFO

San Francisco Intl.

LIS

Humberto Delgado

$1,117 Roundtrip, found 5 days ago

$1,117

Roundtrip

found 5 days ago

Select Scandinavian Airlines flight, departing Wed, Jul 16 from San Francisco Intl. to Humberto Delgado, returning Mon, Jul 21, priced at $1,117 found 5 days ago

Sat, Aug 2 - Wed, Aug 13

SFO

San Francisco Intl.

LIS

Humberto Delgado

$1,138 Roundtrip, found 18 hours ago

$1,138

Roundtrip

found 18 hours ago

Select Turkish Airlines flight, departing Sat, Aug 2 from San Francisco Intl. to Humberto Delgado, returning Wed, Aug 13, priced at $1,138 found 18 hours ago

Sat, Aug 2 - Wed, Aug 13

SFO

San Francisco Intl.

LIS

Humberto Delgado

$1,196 Roundtrip, found 18 hours ago

$1,196

Roundtrip

found 18 hours ago

Select Iberia flight, departing Sat, Aug 2 from San Francisco Intl. to Humberto Delgado, returning Wed, Aug 13, priced at $1,196 found 18 hours ago

Sat, Aug 2 - Wed, Aug 13

SFO

San Francisco Intl.

LIS

Humberto Delgado

$1,205 Roundtrip, found 18 hours ago

$1,205

Roundtrip

found 18 hours ago

Select Aer Lingus flight, departing Sat, Aug 2 from San Francisco Intl. to Humberto Delgado, returning Wed, Aug 13, priced at $1,205 found 18 hours ago

Tue, Jul 22 - Tue, Jul 29

SFO

San Francisco Intl.

LIS

Humberto Delgado

$1,320 Roundtrip, found 5 days ago

$1,320

Roundtrip

found 5 days ago

Select Brussels Airlines flight, departing Tue, Jul 22 from San Francisco Intl. to Humberto Delgado, returning Tue, Jul 29, priced at $1,320 found 5 days ago

Sat, Aug 2 - Wed, Aug 13

SFO

San Francisco Intl.

LIS

Humberto Delgado

$1,387 Roundtrip, found 18 hours ago

$1,387

Roundtrip

found 18 hours ago

Select JetBlue Airways flight, departing Sat, Aug 2 from San Francisco Intl. to Humberto Delgado, returning Wed, Aug 13, priced at $1,387 found 18 hours ago

Sat, Aug 2 - Wed, Aug 13

SFO

San Francisco Intl.

LIS

Humberto Delgado

$1,507 Roundtrip, found 18 hours ago

$1,507

Roundtrip

found 18 hours ago

Select Air France flight, departing Sat, Aug 2 from San Francisco Intl. to Humberto Delgado, returning Wed, Aug 13, priced at $1,507 found 18 hours ago

Sat, Aug 2 - Wed, Aug 13

SFO

San Francisco Intl.

LIS

Humberto Delgado

$1,736 Roundtrip, found 18 hours ago

$1,736

Roundtrip

found 18 hours ago

Select Finnair flight, departing Sat, Aug 2 from San Francisco Intl. to Humberto Delgado, returning Wed, Aug 13, priced at $1,736 found 18 hours ago