Railway · Thailand
What is the approved budget of High-Speed Rail Linking Three Airports?
The High-Speed Rail Linking Three Airports is the planned 220 km, 9-station railway connecting Don Mueang, Suvarnabhumi and U-Tapao airports in Thailand's Eastern Economic Corridor, awarded to a CP Group-led consortium (now Asia Era One) with a PPP contract signed in 2019 but with the notice to proceed still not issued and the contract amendment unresolved in June 2026. The Eastern Economic Corridor Office lists total investment of 271,824 million baht, of which 159,380 million is state investment and 111,994 million private, with full service expected in 2031.
Approved budget
THB 271.824 billion
Approximately $8.27 billion
Cost basis: 2025
Per MeistrupCC BY-SA 4.0
Cost evidence
Basis of the published figure
Approved budget2025
Project metrics
Key dimensions
- Total lengthEastern Economic Corridor Office
- 220 km
Project record
Current completion estimate
Eastern Economic Corridor Office2031