Singapore Airlines Flight 31 Deals & Information (2026/2027)

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Singapore Airlines Flight 31 Route Deals From $398

The cheapest prices found with in the last 7 days for return flights were $602 and $398 for one-way flights to Changi for the period specified. Prices and availability are subject to change. Additional terms apply.

Tue, Sep 1 - Mon, Nov 16
SFO
San Francisco Intl.
SIN
Changi
$602 Roundtrip, found 1 day ago
$602
Roundtrip
found 1 day ago
Select Singapore Airlines flight, departing Tue, Sep 1 from San Francisco Intl. to Changi, returning Mon, Nov 16, priced at $602 found 1 day ago
Thu, Aug 27 - Fri, Sep 11
SFO
San Francisco Intl.
SIN
Changi
$679 Roundtrip, found 9 hours ago
$679
Roundtrip
found 9 hours ago
Select Singapore Airlines flight, departing Thu, Aug 27 from San Francisco Intl. to Changi, returning Fri, Sep 11, priced at $679 found 9 hours ago
Tue, Sep 1 - Sun, Sep 13
SFO
San Francisco Intl.
SIN
Changi
$756 Roundtrip, found 15 hours ago
$756
Roundtrip
found 15 hours ago
Select Singapore Airlines flight, departing Tue, Sep 1 from San Francisco Intl. to Changi, returning Sun, Sep 13, priced at $756 found 15 hours ago
Tue, Jan 12 - Tue, Jan 19
SFO
San Francisco Intl.
SIN
Changi
$818 Roundtrip, found 2 days ago
$818
Roundtrip
found 2 days ago
Select Singapore Airlines flight, departing Tue, Jan 12 from San Francisco Intl. to Changi, returning Tue, Jan 19, priced at $818 found 2 days ago
Tue, Oct 6 - Tue, Oct 20
SFO
San Francisco Intl.
SIN
Changi
$826 Roundtrip, found 6 days ago
$826
Roundtrip
found 6 days ago
Select Singapore Airlines flight, departing Tue, Oct 6 from San Francisco Intl. to Changi, returning Tue, Oct 20, priced at $826 found 6 days ago
Mon, Aug 31 - Wed, Sep 9
SFO
San Francisco Intl.
SIN
Changi
$833 Roundtrip, found 5 days ago
$833
Roundtrip
found 5 days ago
Select Singapore Airlines flight, departing Mon, Aug 31 from San Francisco Intl. to Changi, returning Wed, Sep 9, priced at $833 found 5 days ago
Thu, Oct 29 - Tue, Nov 3
SFO
San Francisco Intl.
SIN
Changi
$836 Roundtrip, found 4 days ago
$836
Roundtrip
found 4 days ago
Select Singapore Airlines flight, departing Thu, Oct 29 from San Francisco Intl. to Changi, returning Tue, Nov 3, priced at $836 found 4 days ago
Mon, Nov 2 - Mon, Nov 9
SFO
San Francisco Intl.
SIN
Changi
$840 Roundtrip, found 3 hours ago
$840
Roundtrip
found 3 hours ago
Select Singapore Airlines flight, departing Mon, Nov 2 from San Francisco Intl. to Changi, returning Mon, Nov 9, priced at $840 found 3 hours ago