Airline tickets from ZYR to RVN are available up to a year prior to departure on Expedia. And although you may occasionally score fantastic last-minute deals, it’s never something you can count on. Also, booking your flights well in advance means you’ll have more choices — and you can avoid getting stuck in the dreaded middle seat! We’re constantly updating our fares to bring you the biggest bargains, so check back often for all the latest specials.