thanks for your query.
Did you get yourself examined by your obstetrician after the bleeding?
The cause could be a low lying placenta,local cervical cause or a threatened miscarriage
In any case, you should have an ultrasound
If the ultrasound is normal, and your obstetrician examines you and pronounces you fit to travel, you can do so.
With history of bleeding, you might need a medical fitness certificate to travel.
Generally, in uncomplicated cases, airlines allow travel upto 32 weeks.