The actual cost of the South Korean KF-21 fighter jet: A potential alternative to the F-35.
With an estimated price of $83 to $112 million, South Korea's KF-21 Boramae fighter jet is becoming the optimal solution for countries that cannot afford to buy the F-35.
South Korea is accelerating its plans for mass production and export of the KF-21 Boramae fighter jet, a collaborative product between Korea Aerospace Industries (KAI) and Hanwha Aerospace. Given that the South Korean defense industry considers cost a critical factor, information regarding the actual price of this fighter jet is attracting significant attention from international observers.
Price analysis by KF-21 variant
Based on the latest reports, the cost of the KF-21 varies significantly between versions depending on their intended use. The Block 1 version, positioned as a dedicated air superiority aircraft, costs approximately $83 million. Meanwhile, the Block 2 version, with its multi-role configuration, can cost up to $112 million.
Notably, the $29 million difference between the two versions doesn't come from changes in airframe design. Instead, the increased cost is primarily focused on integrating advanced weapon systems and modern attack equipment into the multi-purpose version.
Operating costs and associated components
Although the listed price for the Block 1 version is $83 million, the actual cost of bringing an aircraft to combat readiness is often higher. According to contracts signed with the South Korean military, the price fluctuates significantly from year to year:
- Contract Phase 1 (Summer 2024):Each unit costs approximately $70.41 million, including logistical support and training, but without the engine and weapons.
- Second installment contract (2025):The price has increased to $87.5 million, similarly excluding the engine.
If you add the cost of the F141 engine (approximately $11.25 million) and accompanying weapon systems, the actual cost of a fully operational KF-21 could exceed $105 million.
Competitive advantages over the F-35 and Western rivals.
Despite the fact that actual costs may be higher than the "ceiling" list price, the KF-21 still maintains a huge competitive advantage in the export market. When compared to other 4.5th and 5th generation fighter jets, the South Korean price is far more attractive:
| Aircraft | Estimated export price (million USD) |
|---|---|
| KF-21 (South Korea) | 105 - 130 |
| F-35 (USA) | 208 - 225 |
| Eurofighter / Rafale | 220 - 230 |
| Gripen E (Sweden) | 162 - 243 |
South Korea is positioning the KF-21 as a top choice for countries seeking a modern combat platform but lacking the budget for the US F-35. For example, in 2023-2024, the price of the F-35 for the Czech Republic and Romania ranged from $208 to $225 million per aircraft, double the estimated price of the KF-21.
