The cheapest Riga to Melbourne return flight on the radar right now is €1,002, flying with Finnair via one or more connections. It covers departures in May 2027, and every dated link below opens that exact RIX–MEL search on Skyscanner. That is roughly 18% below the €1,221 this route usually costs. Across 110 recorded checks it has ranged between €774 and €4,740. Our sampling points to May 2027 as the cheapest month to fly Riga to Melbourne.
Prices are re-checked against Skyscanner automatically, and every one shows when it was last confirmed, so nothing here is older than it looks. Not flying from Riga? We track 61 other departure cities for Melbourne, listed at the foot of this page.
Prices like this tend to vanish fast. If it has gone when you look, try the days either side of the dates above, since Riga to Melbourne is often still worth booking within a day or two of the fare we found.