https://lowcostroutes.com:443/sv Read the news about low cost flights from Portsmouth, published by the low cost airlines. 2014-05-01 sv hourly 1 https://lowcostroutes.com:443 https://lowcostroutes.com:443/sv/news_9719_Allegiant_Airways_updated_the_flight_schedule 2014-05-01 https://lowcostroutes.com:443/sv/news_9405_Allegiant_Airways_updated_the_flight_schedule 2014-03-31