Lisbon, Portugal is on sale from Los Angeles $510 with KLM/SkyTeam for travel departures from January to March 2019. There are itineraries with Air France, Delta, and KLM allowing you to fly via Paris or Amsterdam or all Delta flights as shown below.
Delta Airlines Los Angeles LAX – New York JFK – Lisbon LIS – JFK – LAX
KLM ticket $507.76 round trip Sun March 10 – Tue March 19, 2019
