Seattle online travel upstart Yapta has sealed a deal with Kayak by which the online travel search company will provide flight results on Yapta’s Web site. Meanwhile, as part of the agreement Yapta plans to add its airfare tracking service to the Web sites of Kayak and SideSeattle online travel upstart Yapta has sealed a deal with Kayak by which the online travel search company will provide flight results on Yapta’s Web site. Meanwhile, as part of the agreement Yapta plans to add its airfare tracking service to the Web sites of Kayak and SideStep.com in the… More»