Hiya Mike, first of all may I say a warm and friendly welcome to our forum, there are a lot of people on here who have started that wonderful journey you may or may not embark on so I will throw my input into this...
Mike first of all yes there are scammers about and you normally find those that ask for money immediately or within a few weeks or months of getting to know them, just be careful and keep your wits about you, if she is genuine then she would never ask for this not before you have actually met her anyway.
I have been down this road as many others have who can testify to finding a right gem but on hindsight a few others and I mean just the minority who have had a bad experience.
I don't say this to put you off as most filipino woman are absolutely beautiful both inside and out but like I say just take one step at a time and if it feels good then you could take it further.
BTW I met my beautiful lady nearly 2 years ago on a dating site, met her in person 6 months later got married 2 months after that and now she is in the UK with me and our little boy so yes things can work out.
Good Luck Buddy