You searched for flights.php - OS Travel Agency | A trusted full service travel agency since 1977. Specializing in all-inclusive vacation packages to all cruises or resorts & hotels. Discover amazing escorted city tours, low price airfare from all airlines and the best rental car deals in every major city. : OS Travel Agency | A trusted full service travel agency since 1977. Specializing in all-inclusive vacation packages to all cruises or resorts & hotels. Discover amazing escorted city tours, low price airfare from all airlines and the best rental car deals in every major city.