Ending today, EVA Airlines via DealBase offers EVA Air roundtrip international fares, with price starting from $620.19. That's the lowest price we could find for select routes on comparable 5-star airlines by at least $177. Book this travel deal today for travel through May 15, 2020. Buy Now Tips On the DealBase landing page, click "" in the top line to see this sale. We found this price on flights departing from Chicago, IL (ORD), with arrival in Bangkok (BKK) on February 12, 2020, and return on February 18, 2020.. All prices, dates, and booking details were valid at the time of publication.