If you are planning to travel to Northern Luzon, the most convenient gateway is Clark Airport. Here is the latest flight information as of March, 2014.
Format= [Place : frequency : days : duration : Carrier]
1) Bangkok, Thailand : 4x/wk : M TU F S : 3h 15m : TigerAir
2) Cebu City, Philippines : 3x/wk : M W F : 1h 20m : Cebu Pacific
3) Davao City, Philippines : 1x/wk : SAT : 1h 45m : TigerAir
4) Doha, Qatar : everyday : daily : 8h 50m : Qatar Airways
5) Dubai, UAE : everyday : daily : 8h 15m : Emirates
6) HongKong : 2x/ day : daily : 1h 55m : Cebu Pacific, Tigerair, Dragonair
7) Kalibo (Boracay) : 4x/wk : S T W F : 1h 15m : Tigerair
8) Macau : 4x/wk : M W F S : 1h 50m : Cebu Pacific
9) Seoul, Korea : everyday : daily : 3h 55m : Asiana, JinAir
10) Singapore : everyday : daily : 3h 30m : Cebu Pacific, Tigerair
You can check the status of flights at Clark Airport with this link
Format= [Place : frequency : days : duration : Carrier]
1) Bangkok, Thailand : 4x/wk : M TU F S : 3h 15m : TigerAir
2) Cebu City, Philippines : 3x/wk : M W F : 1h 20m : Cebu Pacific
3) Davao City, Philippines : 1x/wk : SAT : 1h 45m : TigerAir
4) Doha, Qatar : everyday : daily : 8h 50m : Qatar Airways
5) Dubai, UAE : everyday : daily : 8h 15m : Emirates
6) HongKong : 2x/ day : daily : 1h 55m : Cebu Pacific, Tigerair, Dragonair
7) Kalibo (Boracay) : 4x/wk : S T W F : 1h 15m : Tigerair
8) Macau : 4x/wk : M W F S : 1h 50m : Cebu Pacific
9) Seoul, Korea : everyday : daily : 3h 55m : Asiana, JinAir
10) Singapore : everyday : daily : 3h 30m : Cebu Pacific, Tigerair
You can check the status of flights at Clark Airport with this link