Fly from Philly to Portland for $180 round-trip, including all taxes. The only thing? Some itineraries may include a train segment aboard Amtrak between Philadelphia and Newark, and the flight that follows is nonstop. OR the other option involves a connection in Houston. But how can you say no to a little rail and a nonstop? Seems the way to go considering what a grab-bag of blunders air travel can be these days. This fare is valid for travel 7 days a week, with a 330 day travel period. Tickets require a 14-day advance purchase. No minimum stay.