I think you need not worry and you can travel.
levels increase regularly until about 32-33 weeks gestation, and then they level off. In some cases the amniotic fluid may measure too low or too high. Normal fluid levels may vary, but are usually considered an AFI of 5-25 centimeters or a fluid level of about 800-1000 mL.
Even if there is slight excess fluid ,it tapers to normal levels by 35 to 36 weeks.