Madrid Proposed £350 Million Second Airport Expansion at Casarrubios

Factual/News Headline: Air City Madrid Sur Proposes £350 Million Casarrubios Airport Expansion for One Million Passengers
Curiosity-Gap Headline: Why Madrid is Pursuing a Second Public-Use Airport at Casarrubios Outside Aena's Core Network
Problem-Solving Headline: How to Book Casarrubios Regional Flights and Navigate EU261 Passenger Rights at Secondary Airports
Standfirst: Air City Madrid Sur has revived a £350 million plan to convert Casarrubios Aerodrome into a public-use commercial gateway near Madrid.

Article

A proposed £350 million project to establish a Madrid second airport has been revived, targeting regional European flights and executive aviation. The plan by Air City Madrid Sur aims to convert the Casarrubios Aerodrome into a commercial gateway outside the national Aena network.

The project involves approximately €400 million in private investment. The proposal seeks public-use status rather than general interest classification. Safety certifications must be approved by the State Agency for Aviation Safety (AESA) before operations begin. The status enables developers to construct and manage the facility outside Spain's state-owned airport framework, pending regulatory approvals.

The Casarrubios proposal outlines multiple infrastructure upgrades:

Runway Layout: Plans include a new 3,200-metre runway to support larger narrow-body commercial jets.
Passenger Target: The airport aims to handle up to one million passengers annually.
Flight Profiles: Operations will focus on European point-to-point services, private charters, and executive flights.
Transit Access: The facility is located close to the A-5 corridor highway connecting Madrid with western Spain.

Adolfo Suárez Madrid–Barajas Airport will remain central Spain's primary international hub. Primary hub activities will continue under the national airport operator Aena at Barajas. Casarrubios will act as a complementary gateway for low-cost carriers and logistics.

Passenger Rights & Advisory (Information Gain)

For passengers traveling on point-to-point airlines at secondary European airports:

EU261 Disruption Rules: Under EU261/2004, if an airline cancels a flight with less than 14 days notice, passengers are eligible for cash compensation between €250 and €600.
Duty of Care: During airport infrastructure delays exceeding two hours, airlines must provide meals, refreshments, and communication access.
Rebooking Rights: If a flight is canceled at a secondary gateway, carriers must offer rebooking to the destination or a nearby alternative hub, covering ground transfers.
Policy Recommendation: Our analysis of the policy suggests that travelers check if their low-cost carrier offers alternative flight routes via Barajas Airport in case of schedule changes.

Industry Analyst View

Our analysis of the route map suggests that Casarrubios will attract low-cost carriers seeking lower landing fees. From a logistical perspective, this means central Spain will see increased regional tourism flow to heritage areas like Toledo. The privately funded gateway will bypass traditional Aena bureaucracy, offering airlines faster turnarounds and greater scheduling flexibility.

Data Table

Madrid Casarrubios Airport Expansion Plan Details (2026)

Parameter / Feature	Casarrubios Aerodrome (Proposed)	Adolfo Suárez Barajas (Primary Hub)
Operational Status	Proposed private public-use airport	Active international aviation hub
Project Funding	€400 Million (£350 Million) private backing	State-financed and managed by Aena
Runway Length	3,200-metre commercial strip	Four runways (ranging from 3,500m to 4,350m)
Passenger Target	One million annual passengers	Over 60 million annual passengers
Core Flight Focus	European point-to-point, cargo, private	Long-haul connections, major alliance networks
Highway Proximity	A-5 corridor highway (Central Spain/Toledo)	M-40 and M-11 highway connections