Her first star vehicle, "Identity Thief, " is not likely to be remembered as anyone's triumph (it's scoring in the 20-something percentile on the critics' aggregator site Rotten Tomatoes), but at least it does enough to show that McCarthy has what it takes.

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For now, the boom is a boon for 8coupons, which, as an aggregator, gains relevancy each time a new deal site is launched.

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If a third party aggregator does not include the aircraft type, it can be found on the airline's site.

BBC: Decoding airline sizes

Companies such as Facebook-based job search company Branchout, daily deals aggregator Yipit and car-sharing company Getaround are among those that have raised funding through the site.

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