There are two airlines offering flights to Bucharest. The most direct route isn’t necessarily the cheapest – being flexible is key to finding the lowest airfare rates. For example, try searching by month to see the best time of the week to fly. The cheapest date is currently 01 / Oct / 2021.
You can use the filters on your search to see more flights and find cheaper rates – Bucharest has more than one airport. So if you don't need to fly into Bucharest Henri Coanda Airport, it's worth checking your other options. The 2482 km flight usually takes about 6 hrs 10 mins.
There are about 17 flights to or via Bucharest every week, so you have plenty of options.
If you're planning on going to Bucharest during this time, you could take a look at other airport options. Or you could try to get a last-minute bargain.