Singapore Airlines Flight SQ31 Deals & Information (2025/2026)

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Singapore Airlines Flight 31 Route Deals From $341

The cheapest prices found with in the last 7 days for return flights were $601 and $341 for one-way flights to Changi for the period specified. Prices and availability are subject to change. Additional terms apply.

Wed, Feb 4 - Fri, Feb 13
SFO
San Francisco Intl.
SIN
Changi
$601 Roundtrip, found 4 hours ago
$601
Roundtrip
found 4 hours ago
Select Singapore Airlines flight, departing Wed, Feb 4 from San Francisco Intl. to Changi, returning Fri, Feb 13, priced at $601 found 4 hours ago
Wed, Jan 28 - Mon, Feb 9
SFO
San Francisco Intl.
SIN
Changi
$636 Roundtrip, found 17 hours ago
$636
Roundtrip
found 17 hours ago
Select Singapore Airlines flight, departing Wed, Jan 28 from San Francisco Intl. to Changi, returning Mon, Feb 9, priced at $636 found 17 hours ago
Fri, Jan 23 - Wed, Jan 28
SFO
San Francisco Intl.
SIN
Changi
$636 Roundtrip, just found
$636
Roundtrip
just found
Select Singapore Airlines flight, departing Fri, Jan 23 from San Francisco Intl. to Changi, returning Wed, Jan 28, priced at $636 just found
Mon, Feb 2 - Fri, Feb 13
SFO
San Francisco Intl.
SIN
Changi
$643 Roundtrip, found 5 days ago
$643
Roundtrip
found 5 days ago
Select Singapore Airlines flight, departing Mon, Feb 2 from San Francisco Intl. to Changi, returning Fri, Feb 13, priced at $643 found 5 days ago
Mon, Feb 2 - Sun, Feb 8
SFO
San Francisco Intl.
SIN
Changi
$680 Roundtrip, found 15 hours ago
$680
Roundtrip
found 15 hours ago
Select Singapore Airlines flight, departing Mon, Feb 2 from San Francisco Intl. to Changi, returning Sun, Feb 8, priced at $680 found 15 hours ago
Tue, Jan 13 - Tue, Jan 27
SFO
San Francisco Intl.
SIN
Changi
$680 Roundtrip, just found
$680
Roundtrip
just found
Select Singapore Airlines flight, departing Tue, Jan 13 from San Francisco Intl. to Changi, returning Tue, Jan 27, priced at $680 just found