One of TAP Portugal cheapest prices for a Belfast to Lisbon flight we have right now is £ {var.lowestRoutePrice}.The price for TAP Portugal flight between Belfast to Lisbon will vary according to some factors, like seasonality and anticipation.On average though, flights with TAP Portugal cost £ {var.averageRoutePrice} for the route Belfast to Lisbon, though it depends a lot on the season and how far in advance you book your tickets.By launching a search at Opodo you can easily check Belfast - Lisbon chepeast TAP Portugal offers, as well as subscribe to get price drop alerts and be informed about best deals for this route.