Bulgaria
Bulgaria has 4 airports with published traffic data. Sofia, the busiest airport in Bulgaria, handled 759,710 passengers in June 2026, according to Eurostat.
Domestic aviation emitted 17 thousand tonnes of CO₂ in 2024, according to the national inventory submitted to the UNFCCC.
all traffic at the airport- Passengers 1,372,936 sum of 4 reporting airports · June 2026 ▲ 8.4% vs June 2025
- Flights (arrivals + departures) 10,108 sum of 4 reporting airports · June 2026 ▲ 6.6% vs June 2025
- Tonnes of cargo 1,865 sum of 4 reporting airports · August 2025
- Environment 17 thousand tonnes CO₂, domestic aviation · 2024 ▼ 2.1% vs 2023
Passengers at reporting airports, by month
Sum over the same 4 airports as the ranking below; periods where those airports report less than 98% of their traffic are left out. Domestic trips count at both ends.
Top 5 · passengers, June 2026
Source: Eurostat · all traffic at the airport
Airports ranked
One row per airport, one column per measure. Each column is the most recent period with enough of the country's airports reporting; sort by any column.
- Passengers · June 2026 — the most recent period with enough of the country's airports reporting (4). — all traffic at the airport. Source: Eurostat.
- Flights (arrivals + departures) · June 2026 — the most recent period with enough of the country's airports reporting (4). — all traffic at the airport. Source: EUROCONTROL.
- Tonnes of cargo · August 2025 — the most recent period with enough of the country's airports reporting (4). — all traffic at the airport. Source: Eurostat.
| # | Airport | PassengersJune 2026 | Change vs last yearpassengers | Flights (arrivals + departures)June 2026 | Tonnes of cargoAugust 2025 |
|---|---|---|---|---|---|
| 1 | Sofia Airport | 759,710 | ▲ 7.8% | 6,082 | 1,755 |
| 2 | Burgas Airport | 323,971 | ▼ 0.0% | 2,115 | 60 |
| 3 | Varna Airport | 268,747 | ▲ 20.2% | 1,756 | 4 |
| 4 | Plovdiv International Airport | 20,508 | ▲ 47.4% | 155 | 46 |
Environment
Aviation CO₂ in the national greenhouse gas inventory
Official inventory reported to the UN climate convention (UNFCCC), same IPCC rules for every country: domestic aviation (1.A.3.a) counts in the national total; international aviation (bunker fuel sold for outbound international flights) is a memo item outside it.In 2024, domestic aviation in Bulgaria emitted 17 thousand tonnes of CO₂, and fuel sold for international flights another 704 thousand tonnes, according to the national inventory submitted to the UNFCCC.
| Year | Domestic aviation (kt CO₂) | International aviation (kt CO₂) |
|---|---|---|
| 2024 | 17 | 704 |
| 2023 | 17 | 660 |
| 2022 | 17 | 592 |
| 2021 | 15 | 492 |
| 2020 | 12 | 407 |
| 2019 | 21 | 767 |
| 2018 | 22 | 813 |
| 2017 | 22 | 771 |
Every reported pollutant and fuel use, 2024
| Pollutant | Unit | Domestic aviation | International aviation |
|---|---|---|---|
| CO₂ (Carbon dioxide) | thousand tonnes | 17.1 | 704 |
| NOₓ (Nitrogen oxides) | thousand tonnes | 0.09 | 2.9 |
| SOₓ (Sulphur oxides) | thousand tonnes | 0.00 | 0.19 |
| CO (Carbon monoxide) | thousand tonnes | 0.03 | 0.75 |
| NMVOC (Non-methane volatile organic compounds) | thousand tonnes | 0.00 | 0.08 |
| CH₄ (Methane) | thousand tonnes | 0.00 | 0.01 |
| N₂O (Nitrous oxide) | thousand tonnes | 0.00 | 0.02 |
| Fuel burned | TJ | 234 | 9,638 |
Thousand tonnes as published (energy in terajoules). Inventories are revised every year back to 1990. NOₓ, CO, NMVOC and SOₓ are air pollutants reported alongside the greenhouse gases.
UNFCCC — National Inventory Submissions (Common Reporting Tables)
CO₂ from departing flights
CO₂ of flights departing this country, whole flight to destinationIn July 2026, flights departing Bulgaria emitted 88,427 tonnes of CO₂ over their whole journey (6,085 departures, about 14.5 tonnes per departure), according to EUROCONTROL.
The most recent periods19 periods
| Period | Tonnes of CO₂ 2025 | Tonnes of CO₂ 2026 | Change vs last year |
|---|---|---|---|
| January | 46,530 | 47,803 | ▲ 2.7% |
| February | 43,535 | 44,838 | ▲ 3.0% |
| March | 49,203 | 58,535 | ▲ 19.0% |
| April | 55,817 | 51,233 | ▼ 8.2% |
| May | 61,667 | 62,464 | ▲ 1.3% |
| June | 76,178 | 80,559 | ▲ 5.8% |
| July | 91,632 | 88,427 | ▼ 3.5% |
| August | 89,174 | – | – |
| September | 76,663 | – | – |
| October | 61,251 | – | in progress |
| November | 42,663 | – | – |
| December | 47,487 | – | – |
| Year to date (Jan–Jul) | 424,561 | 433,858 | ▲ 2.2% |
Self-computed: CO₂ ÷ departures, both from EUROCONTROL.
EUROCONTROL — Small Emitters Tool
NOₓ emitted in the national airspace
Emitted inside this country's airspace, overflights includedIn December 2024, aircraft emitted 3,711 tonnes of nitrogen oxides (NOₓ) inside the airspace of Bulgaria, including flights that only crossed it; 6 tonnes of that came from taxiing on the ground, according to EUROCONTROL's Advanced Emissions Model.
The most recent periods24 periods
| Period | Tonnes of NOₓ 2023 | Tonnes of NOₓ 2024 | Change vs last year |
|---|---|---|---|
| January | 3,002 | 3,523 | ▲ 17.4% |
| February | 2,639 | 3,312 | ▲ 25.5% |
| March | 2,916 | 3,616 | ▲ 24.0% |
| April | 3,182 | 3,437 | ▲ 8.0% |
| May | 3,642 | 3,960 | ▲ 8.7% |
| June | 3,924 | 4,289 | ▲ 9.3% |
| July | 4,320 | 4,655 | ▲ 7.7% |
| August | 4,355 | 4,254 | ▼ 2.3% |
| September | 4,093 | 4,402 | ▲ 7.5% |
| October | 4,028 | 3,395 | ▼ 15.7% |
| November | 3,479 | 3,598 | ▲ 3.4% |
| December | 3,553 | 3,711 | ▲ 4.5% |
| Year to date (Jan–Dec) | 43,132 | 46,152 | ▲ 7.0% |
Converted from kilograms as published. The model series currently ends in December 2024.
EUROCONTROL — Advanced Emissions Model
Airports
4- Burgas Airport BOJ
- Plovdiv International Airport PDV
- Sofia Airport SOF
- Varna Airport VAR
Nearby countries
Countries in the same region with published data, for context.