In the Return of Bruce Wayne , there are time travel elements.
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Batman also time-travelled a couple of times in The Brave and the Bold in order to team up with Kamandi in the future, for example in The Brave and the Bold #120 .
But then Brave & Bold was always in its own (lack of) continuity.
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As other answers have pointed out, The Return of Bruce Wayne is probably the "biggest" example of a Batman time travel story, in terms of continuity.
It covers Bruce jumping through various different time periods, slowly returning to the future after having been apparently killed (but actually sent back in time) during the events of Final Crisis .
Since you asked for any serial, I'll also mention "The Once and Future Thing", a two-part episode of the Justice League animated series, which features members of the League (Batman, Green Lantern, and Wonder Woman) tracking down a time-travelling villain.
The first episode features various DC Western-era heroes such as Jonah Hex and the second is set in the future of the Batman Beyond cartoon (albeit with the timeline altered by the villain), which leads to the wonderful team-up between modern Batman and elderly Bruce Wayne .
A recent arc in the Batman '66 comic (starting in digital issue #22) also had King Tut travelling back in time to ancient Egypt, with Batman and Robin following him.
That's a handful of examples
but I've no doubt there are plenty more, even if Batman isn't as involved with time travel as the Flash (who has it as an inherent part of his powers, with the assistance of his Cosmic Treadmill, and who has several time-travelling enemies) or Superman (with his long-standing association with casual time travellers, the Legion of Superheroes).
Time travel stories and the alternate universes they create are a remarkably common occurrence in comics and Batman has been in a lot of comics over the years.
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Batman time travels in both Justice League episode
The Once and Future Thing and the Batman the Brave and the Bold episode Menace of the Madniks!
The sheer volume of Batman fiction in print and video means that it will be difficult to give a complete answer to this question.
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In the "Batman: The Animated Series" Episode "Time Out of Joint" Batman and Robin battle
The Clock King who has a device which can stop time allowing him to move through time quickly as if teleporting.
Later in the episode Batman and Robin meet up with the scientist who created the time device which The Clock King stole from him and have to end up using the same kind of time device to quickly get to their location in time to foil The Clock King's plan to kill Mayor Hamilton Hill with a bomb.
The episode can be seen here: http://www.dailymotion.com/video/x48qyye
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Some of the main DC characters have time-traveled such as the Flash and Superman, has Batman in any serial ever traveled through time?
Has Batman ever time-traveled in any form?
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<time-travel><batman><dc>
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Time travel stories and the alternate universes they create are a common occurrence in comics. Batman time travels in both  Justice League  episodes and in The Brave and the Bold, but  The Return of Bruce Wayne  is probably the biggest example of a Batman time travel story. Batman time-travels a couple of times in the Brave and the Bold.
Batman time-travels a couple of times in the Brave and the Bold.