Take round-trip flights with rates from $127 during this sale at Virgin America. The lowest prices we found were from Portland to San Francisco. Flights from Dallas to new York start at $137, and flights from Los Angeles to Boston start at $313. Some of these prices require at least 21 days advanced bookings and travel on specific dates. Enter your own travel dates and destinations to see what's available on Airfarewatchdog, then click "See All Details" next to your preferred flights. Prefer to book directly? You can check prices to destinations directly on the Virgin America site. Travel by 4/11. Taxes, fees, and restrictions may apply.