After seeing its lead narrow at the top of the most popular airline websites in the US in recent months, Southwest has returned to form and pushed ahead of its rival carriers.
Christmas and New Year advertising campaigns kicking in for Thomson and Thomas Cook as their respective websites leave the likes of Expedia and Lastminute.com trailing behind.
Wotif has a moved into third spot and joined Webjet and Expedia in a group edging away from the chasing pack in the list of leading travel sites in New Zealand.
Market leader Wotif and second placed Webjet have increased their share of traffic in the list of most popular travel websites in Australia.
Decolar is close to securing a third of all web traffic to travel agency sites in Brazil after performing strongly again in December last year.
Less than 0.75% market share separates Orbitz, Travelocity and CheapOAir near the top of the list of most popular travel websites in the US.
Air Canada has regained the top spot in the list of leading travel websites in Canada from WestJet, after a sizeable jump in traffic in December 2012.
New leaders in the airline and agency categories at the end of 2012 as British Airways and Thomson leapfrog their rivals to become the most popular travel websites in the UK.
Autumnal joy at TripAdvisor as it moves into prime position at the top of the list of leading travel websites in New Zealand for November.
Keeping it in the family but a change at the top as Qantas and Jetstar trade places to lead the list of most popular airline websites in Australia.