How does this translate into English?
旅行なんて今は無理です。行くとしたら、お金を貯めてからです。

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There's no way I can go traveling now. Even if I ever decide to go, I would have to save up first.

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I would say like this. Not 100% confident, though.

I can't afford to travel abroard right now. I would do when/if I saved enough money.

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Hi, 
The word-for-word translation would be:
It's impossible to travel now. If I travel (/ went), it'll be after I save money.

However, I think it sounds unnatural in English and I would do as Kota-san did.

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行くとしたら if I went お金を貯めてからです。 it would be when I had saved money.

Something like this?

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Thank you for your comment.

But why is the としたら attached to 行く and not to 貯める？