The cheapest month to fly from Bucharest to Sofia is November, with fares from €23. The most expensive period is August, when prices can reach €46+ — a difference of €23 per ticket. Booking on a Wednesday and travelling off-peak can save you significantly on the 300 km OTP–SOF sector.
Estimated seasonal guide, not live fare data: we do not yet have enough observed fares on this route to show real monthly prices. Use the live fares above for actual pricing.
| Month | From price | vs cheapest | Verdict |
|---|---|---|---|
| January | €24 | +€1 | Best value |
| February | €26 | +€3 | Best value |
| March | €29 | +€6 | Best value |
| April | €33 | +€10 | Best value |
| May | €31 | +€8 | Best value |
| June | €37 | +€14 | Average |
| July | €44 | +€21 | Expensive |
| August | €46 | +€23 | Expensive |
| September | €30 | +€7 | Best value |
| October | €27 | +€4 | Best value |
| November | €23 | Cheapest | Best value |
| December | €36 | +€13 | Average |
On the Bucharest–Sofia route, Wednesdays are typically the cheapest day to fly, while Saturdays are most expensive. Mid-week departures (Tuesday, Wednesday) save an average of 15–25% compared to weekend travel.
