Spain ATC Strike Day 11 — Monday April 27, 2026: Groundforce Dual Crisis Returns at Lanzarote & Fuerteventura — No Deal Over Weekend — New Mandate Week Begins — Complete UK Passenger Rights Guide

The Feria de Sevilla has closed. Easter is long over. And the SAERCO ATC strike is still running.

Day 11. No deal. No talks. No suspension. The walkout that began at midnight on April 17 has now outlasted Spain’s most famous festival, a Copa del Rey final, a full Easter return week, and an entire Spanish public holiday calendar. The strike was declared indefinite from the first day. SAERCO and the unions have not announced fresh talks, and controllers have indicated the action will continue until a new agreement is reached.

And today — Monday April 27 — brings the week’s first Groundforce risk window back to Lanzarote and Fuerteventura. The dual crisis that has been the defining characteristic of this entire aviation emergency returns with full force this morning. Three separate strike entities are now active simultaneously at overlapping Spanish airports: the SAERCO ATC strike running alongside ongoing handling strikes at both Groundforce and Azul Handling, with these ground staff disputes carrying their own minimum service orders and overlap with the controllers’ walkout increasing the overall risk of flight disruption at affected airports.

If you are flying to or from Lanzarote, Fuerteventura, Sevilla, Vigo or any of the other 14 SAERCO airports today — this is everything you need to know.

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Published: April 27, 2026 — Monday (Day 11)
SAERCO ATC strike: 🔴 LIVE — Day 11 — indefinite — no deal — no end date
Unions: USCA + CCOO
Airports affected: 14 — full list below
Groundforce status today: 🔴 Monday = scheduled strike day — windows active unless suspension confirmed
Groundforce windows (Mon): 05:00–07:00 · 11:00–17:00 · 22:00–midnight
Azul Handling: ⚠️ Also active — Wed/Fri/Sat mandate confirmed through April 29
Dual-crisis airports today: 🔴🔴 Lanzarote (ACE) + Fuerteventura (FUE)
Groundforce deal status: ❌ No deal confirmed over weekend — mandate continues
SAERCO talks: ❌ None scheduled — structural dispute, not financial
Days into first month: Day 11 of projected 20,000 flight movements + 2.6 million passengers disrupted
EU261 / UK261 cash compensation: ❌ NO — ATC strike = extraordinary circumstances
Duty of care (meals/hotel): ✅ YES — always applicable regardless of cause
Refund / rebooking: ✅ YES — unconditional for any cancelled flight
Package holiday rights: ✅ STRONGER — UK Package Travel Regulations apply
Carry-on rule: ✅ Pack essentials in cabin bag every time you fly a SAERCO or Groundforce airport

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Day 11: What Has Changed — and What Has Not

Eleven days of indefinite strike, and this is the honest ledger.

What has changed:

The Feria de Sevilla ended at midnight on Sunday April 26. For six days — April 20 to 26 — Sevilla Airport (SVQ) was operating under maximum festival pressure simultaneously with the SAERCO ATC strike, creating what was arguably the most complex single airport situation of the entire crisis. That specific additional pressure layer is now over. Sevilla returns to normal seasonal volumes today, which means SVQ’s risk level drops from critical-festival to high-normal for a SAERCO airport.

The Groundforce mandate window that ran through April 26 has formally expired. But as your Day 9 article made clear: the end of the current mandate window does NOT mean the strike ends. The mandate window is a legal notification requirement under Spanish labour law — unions must pre-notify action periods. Where no talks are scheduled and no deal has been reached, filing a new notice to continue is standard procedure. Travel Tourister The indefinite Groundforce strike with partial walkouts every Monday, Wednesday and Friday remains active and confirmed.  A new mandate period is now in effect through at least April 29.

What has not changed:

The SAERCO dispute remains structurally unresolved. SAERCO and the unions have not announced fresh talks as of this week, and controllers have indicated the action will continue until a new agreement is reached.  The underlying demands — more controllers hired, rest periods enshrined in contract, scheduling compliance with European fatigue regulations — require operational changes that take months, not days. No financial offer resolves this. No weekend press conference ends it.

Under Spanish law, air traffic control is classed as an essential public service, so MITMA has issued a servicios mínimos order. Reported coverage ranges from around 34% on lower-traffic routes up to full coverage for emergency, medical and Canary Islands inter-island lifeline flights.  That 34% figure has not improved in 11 days. The minimum services order has kept airports open but operating at a fraction of normal throughput — every day, across every affected airport.

The practical consequence today: Lanzarote and Fuerteventura remain on the same reduced ATC capacity they have been on since Day 1, and the Groundforce Monday windows are active from 05:00.

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The New Actor: Azul Handling

A significant detail that has not featured prominently in earlier TravelTourister coverage warrants attention today.

The ATC strike is taking place at the same time as separate, ongoing handling strikes at Groundforce and Azul Handling — two ground staff disputes with their own minimum service orders, whose overlap with the SAERCO controllers’ walkout increases the overall risk of flight disruption at the affected airports.

Azul Handling is a separate ground handling company from Groundforce — a smaller operator but one that services key Spanish airports including some that overlap with the SAERCO and Groundforce affected lists. The Azul Handling mandate runs Wednesday, Friday and Saturday through April 29. This means on Wednesday April 30 (Day 13 of the SAERCO strike), passengers at affected airports could be facing:

• SAERCO ATC minimum services (Day 13, indefinite)
• Groundforce Wednesday windows 05:00–07:00, 11:00–17:00, 22:00–midnight
• Azul Handling Wednesday windows (mandate through April 29)

Three simultaneous ground operation impacts at overlapping airports. The complexity of Spain’s aviation disruption picture has, if anything, increased since Day 1.

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Today’s Airport Risk Assessment — Monday April 27

Safe today — AENA-operated, NOT affected by SAERCO: Madrid-Barajas ✅ · Barcelona El Prat ✅ · Palma de Mallorca ✅ · Málaga ✅ · Tenerife Sur ✅ · Tenerife Norte ✅ · Alicante ✅ · Valencia ✅ · Gran Canaria ✅ · Bilbao ✅ · Ibiza ✅

Important Groundforce note for today: The 12 Groundforce airports are NOT identical to the 14 SAERCO airports. Madrid-Barajas, Barcelona El Prat, Palma, Málaga, Alicante, Valencia, Ibiza, Bilbao, Gran Canaria, Tenerife Norte and Sur are on the Groundforce list but NOT on the SAERCO list. Passengers at those airports face Groundforce baggage disruption today but normal ATC operations. Only Lanzarote and Fuerteventura sit on both lists — the dual crisis airports.

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The Groundforce Monday Windows — What Happens at Each

For passengers at Lanzarote and Fuerteventura today, understanding the three Groundforce windows is critical for predicting when your flight is most at risk.

05:00–07:00 — Early morning wave The smallest window but the one most likely to affect early-departure flights before the baggage desk has alternative arrangements in place. Ryanair typically operates its first Lanzarote departures from 07:00–08:00 — flights scheduled to depart at 07:30 will be boarding during this window. If bags haven’t been loaded, they don’t fly. The aircraft departs on time; your luggage follows on the next available service.

11:00–17:00 — Six-hour midday peak The most dangerous window of the day. Six hours covers the entire midday and afternoon scheduling block — every Jet2, TUI, easyJet and Ryanair midday departure sits within it. Aircraft operating tight turnaround schedules are particularly vulnerable. An aircraft that was supposed to land, offload 189 passengers, clean, board 189 new passengers and push back within 45 minutes cannot absorb both an ATC slot delay and a baggage crew absence simultaneously. Either it departs without bags, or it departs late, or it cancels the sector.

22:00–midnight — Late evening Ryanair’s final sector of the day from Lanzarote typically falls in this window. An aircraft crew approaching their legal maximum duty hours — extended by a day of ATC-induced delays — faces cancellation rather than a duty-time violation. Today’s 22:00 window risk depends entirely on how much delay has accumulated through the day. If afternoon and evening ATC slots have been running 90+ minutes behind, the late evening departures become high cancellation risk.

The key check right now: Visit your airline’s app or website and look for a Spain disruption travel advisory. If your flight is to Lanzarote or Fuerteventura today, specifically check whether Groundforce has issued a suspension for today’s Monday windows. If no suspension is confirmed, treat all three windows as live.

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The Summer Holiday Warning — Your Biggest Question Answered

The most common question in every Spain ATC article since Day 1 is now the dominant reader concern: I have a Lanzarote/Fuerteventura/Sevilla booking in May or June. Is my holiday safe?

The answer requires separating two questions.

Will the SAERCO ATC strike still be running in May and June?

The SAERCO dispute is structural. It requires SAERCO to hire additional controllers, which takes months, implement new scheduling systems, and negotiate a full collective agreement. That is not a financial negotiation that concludes over a weekend.

The structural explanation confirmed in previous reporting goes further: Controllers say staffing shortages at SAERCO towers push workloads beyond safe limits, with compulsory on-call shifts and last-minute roster changes breaching their collective agreement — concerns about operational fatigue and aviation safety that cannot be addressed with a pay offer.

In parallel, the unions’ longer-term demand — that the next SAERCO contract tender re-bundle these airports under the state-run ENAIRE — is a political and procurement matter that the Spanish Ministry of Transport cannot resolve in weeks. Summer bookings to Lanzarote, Fuerteventura and Sevilla should be treated as carrying ATC strike risk until a confirmed signed agreement is published by both USCA and SAERCO.

Can I claim if my summer flight is cancelled?

Under EU261/UK261: ❌ No cash compensation for ATC strike-caused cancellations. Under UK Package Travel Regulations: ✅ Yes — if your package is significantly affected, your tour operator must offer an alternative or a full cash refund. Under travel insurance (if purchased before the strike became a known event): Varies by policy — check your specific terms.

The practical advice: if you have a Jet2 Holidays or TUI package to a SAERCO airport in May or June, call your tour operator today. Ask whether alternative departure airports are available — for example, flying to Gran Canaria (LPA, AENA-operated) rather than Lanzarote (ACE, SAERCO) and taking a short inter-island ferry or flight removes the SAERCO ATC risk entirely. Gran Canaria to Lanzarote by ferry takes approximately 1 hour 15 minutes via Fred Olsen Express.

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Your Complete Monday Rights Guide

❌ EU261 / UK261 Cash Compensation — Not Available

An air traffic control strike is classed as an extraordinary circumstance under EU261 case law because the airline does not employ the controllers and cannot prevent the disruption. That means the fixed €250–€600 cash compensation for long delays and cancellations is typically not payable during the SAERCO strike.

This classification has not changed and will not change regardless of how long the strike runs. Duration does not convert extraordinary circumstances into ordinary circumstances.

The exception: If your flight was delayed or cancelled during the strike window but the airline’s own records show the real cause was a crew shortage, a technical fault, or another airline-side issue, the extraordinary circumstances defence does not apply and you can still claim. Keep all communications from the airline in writing so you can challenge the reason later if needed.

✅ Full Refund — Unconditional

If your flight is cancelled, you are entitled to a full cash refund to your original payment method within 7 days. Airlines cannot insist on a voucher. Invoke Article 8 directly: “I am invoking my right to a full cash refund under EU Regulation 261/2004 Article 8.” Document every response.

✅ Rerouting

If you wish to travel, the airline must rebook you to your final destination at the earliest opportunity. For indefinite ATC strikes at peak-season destinations, “earliest opportunity” may be days away. Ask whether an alternative routing via a non-SAERCO airport is available.

✅ Duty of Care — Fully Active

Extraordinary circumstances removes cash compensation. It does NOT remove duty of care.

At 2+ hour delay: Go to the check-in or gate desk immediately. Say: “My flight has been delayed over two hours. Under Article 9 of EU Regulation 261/2004, I am requesting meal vouchers.” Keep every receipt.

At overnight cancellation: Ask the airline to arrange hotel accommodation. If they fail and you book independently, keep the receipt and submit with written documentation of why airline-arranged accommodation was unavailable.

✅ Package Holiday Customers — Stronger Rights

If you booked through Jet2 Holidays, TUI, Thomas Cook, On the Beach, Love Holidays or any ATOL-protected operator, your first call is to the tour operator — not the airline. Under the UK Package Travel and Linked Travel Arrangements Regulations 2018, you are owed either an alternative comparable package or a full cash refund if your package is significantly affected.

✅ Bags Not Loaded (Groundforce Monday) — File PIR Immediately

If your flight arrives at a UK airport and your checked bag didn’t travel with you: file a Property Irregularity Report (PIR) at the baggage desk before leaving the airport. You need the PIR reference number for all subsequent compensation claims. Do not leave without it.

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The Week Ahead — Risk Calendar

Bank holiday note: Monday April 28 is not a UK bank holiday — normal Monday traffic volumes. However Friday May 2 falls the day before the UK Early May Bank Holiday weekend — high outbound volumes to Spain, with Saturday May 3 being one of the first major May Lanzarote/Fuerteventura changeover days of the summer season. If SAERCO is still running on May 3, that will be the first peak-summer Saturday disruption day.

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Airline Contacts — Monday April 27

AENA live airport status: aena.es → Flight Information UK CAA passenger rights: caa.co.uk/passengers Package holiday ATOL protection: caa.co.uk/atol-protection EU261 claim support: airhelp.com · flightright.eu

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Related Articles:

• Spain ATC Strike Day 9 — April 25: Feria de Sevilla Closes Tonight — Worst SVQ Return Day of Entire Strike
• Spain ATC Strike Day 6 — April 22: Dual Crisis, Groundforce Wednesday, Feria de Sevilla Peak
• Spain ATC Strike Day 4 — April 20: Lanzarote & Fuerteventura Face Monday Dual Crisis
• Spain ATC Strike LIVE Day 1 — April 17: SAERCO Controllers Walk Out at 14 Airports
• Spain Easter Airport Strike: Groundforce Status Complete Guide
• NZ Anzac Day Flight Chaos April 27: Air NZ Disruptions Live

Posted By : Vinay

As a lead contributor for Travel Tourister, Vinay is dedicated to serving our Tier 1 audience (US, UK, Canada, Australia). His mission is to deliver precise, fact-checked news and actionable, data-driven articles that empower readers to make informed decisions, minimize travel risks, and maximize their adventure without compromising safety or budget.