Facts about flights from Washington to Porto
- The average number of stop(s) between Washington and Porto is 1
- The average cost for 2 stop(s) flight from Washington to Porto is $552.09
- Usually, people stay 9 days when travelling from Washington to Porto
- The average cost for 1 stop(s) flight from Washington to Porto is $539.33
- When flying from Washington to Porto, the most popular gateway is Newark Liberty International (EWR)
- february is the cheapest time to fly between Washington and Porto