It depends on what class ticket you get. We're were in comfort class and it cost about 260. For both of us one way.
Prices may also vary by season. Best price would be through the website. Advance purchase is suggested because they may sell out.
There's an advance purchase rate and walk up rate. Check the website.
They have different rates at different times of the year. Check there website they also have a phone number you can call they are very helpful. Also you can look at Trip advisor sometimes they have good deals.
Look on the website.
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