Foreign tourists visit Hoan Kiem Lake in Hanoi.

According to the list, Hanoi is ranked 76th in the world, up 41 places, while the HCM City finds its at 52nd, up 30 places compared to the previous rankings.

Leading the way as the most popular city this summer is Bangkok, far ahead of the second most searched destination, Paris. Other destinations named in the top 10 include this likes of London, Denpasar, Barcelona, New York, Lisbon, Istanbul, Madrid, and Athens.

The top 10 list features highest climbers dominated by Asian and Australasian cities, which were still subject to some of the strictest pandemic travel regulations last summer.

ForwardKeys’ Flight Search data, which is the most comprehensive source available, covers billions of searches annually via an extensive selection of online travel agencies, airlines, and metasearch companies, including Google Flights, Kayak, Kiwi.com, Skyscanner, and Wego.