These Are the Most Popular Travel Booking Sites

Skift.com this month published the results of its survey of travel-website traffic, based on estimated site visits during May.

The rankings group visits from all same-brand websites together. So, for example, Expedia’s traffic includes not just Expedia.com but also such country-specific sites as Expedia.co.uk and Expedia.de.

The results, from most- to least-visited travel sites:

1. Booking.com
2. TripAdvisor.com
3. Expedia.com
4. Hotels.com
5. Airbnb.com
6. Agoda.com
7. Priceline.com
8. Skyscanner.com
9. Kayak.com
10. Makemytrip.com
11. Cheapoair.com
12. Trivago.com
13. Hotelurbano.com
14. Orbitz.com
15. Hotwire.com
16. Travelocity.com

The rankings are both surprising and not.

Booking.com is the leader, predictably. But it goes beyond that: the site is also on a growth tear, increasing visits by 27 percent in just the first five months of 2014.

Of course, travel standbys like TripAdvisor, Expedia, and Priceline make the list.

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But Airbnb ranked among the top five travel sites? Apparently so.

Skyscanner? Agoda? Who knew? And who are they anyway?

The takeaway for even the most engaged travelers is that the online travel landscape remains very much in flux. The website you used to research and book your trips last month will probably still do the job next month. But there may be a new website that can do it better.

Reader Reality Check

Any surprises?

This article originally appeared on FrequentFlier.com.