Philippine Airlines Flight SQ509 Deals & Information (2025/2026)

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Philippine Airlines Flight 509 Route Deals From $75

The cheapest prices found with in the last 7 days for return flights were $161 and $75 for one-way flights to Changi for the period specified. Prices and availability are subject to change. Additional terms apply.

Wed, Nov 5 - Sat, Nov 8
MNL
Ninoy Aquino Intl.
SIN
Changi
$161 Roundtrip, found 4 days ago
$161
Roundtrip
found 4 days ago
Select Philippine Airlines flight, departing Wed, Nov 5 from Ninoy Aquino Intl. to Changi, returning Sat, Nov 8, priced at $161 found 4 days ago
Wed, Sep 3 - Sun, Sep 7
MNL
Ninoy Aquino Intl.
SIN
Changi
$161 Roundtrip, found 10 hours ago
$161
Roundtrip
found 10 hours ago
Select Philippine Airlines flight, departing Wed, Sep 3 from Ninoy Aquino Intl. to Changi, returning Sun, Sep 7, priced at $161 found 10 hours ago
Thu, Mar 12 - Mon, Mar 16
MNL
Ninoy Aquino Intl.
SIN
Changi
$173 Roundtrip, found 3 days ago
$173
Roundtrip
found 3 days ago
Select Philippine Airlines flight, departing Thu, Mar 12 from Ninoy Aquino Intl. to Changi, returning Mon, Mar 16, priced at $173 found 3 days ago