If you are seeing a Russian woman and are keen on meeting her, it is always wiser for you to go visit them instead of inviting them to visit you.
This way you can avoid losing money through a scam and a traditional Russian woman would probably prefer it if the man made the effort to come visit her.
While most Russian dating websites are genuine, a number of them are fake and their so-called members are not real either.
She will then ask you to send her money for her plane ticket and/or visa.
This ploy also relies on the stereotypical assumption that all Russian and Eastern European women want to move to or visit America, Canada, the UK or Australia which simply isn't the case.
The period from first contact to first cash request could be a few days or a few months but regardless how long you've "known" the person, a request for money is a scam.
Scammers operate from countries with low per capita income and even if a scam takes months to pay out it is worthwhile for them, even for just a few hundred dollars.
After some time, she will tell you she cannot continue communicating with you as she cannot afford to pay for the translation service anymore.
At this point, they either expect you to offer to pay for the service or even ask you if you will be willing to pay for the service so you can continue your relationship.
At this point she will set the victim up as her knight in shining armor, the only one who can help her.
She might just need money to pay her bills but will probably want desperately to come and visit him in his Western nation.
Her monthly salary is only a few hundred dollars, all Russian men are drunks and maybe her family died in a tragic accident or they are ill and in need of surgery.