Hipmunk Takes Off With $4.7M

San Francisco startup Hipmunk, a Y Combinator-backed company developing a new airfare search interface (as we explained in this August profile), has raised $4.7 million in new equity-based financing, in a round that could eventually reach $5.9 million, according to a regulatory filing. The company has said nothing so far about who’s investing or how it plans to use the funds.

Wade Roush is a contributing editor at Xconomy. Follow @wroush

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