Peak-summer delays: why July and August are the worst — and what you can claim

It's the second week of August, and the departures board at Palma de Mallorca hasn't shown a single "on time" in an hour. Somewhere in that queue is a family of four who booked this trip eleven months ago, now recalculating whether they'll make their connecting flight home — or their first night's hotel. Multiply that scene by thousands of airports, on thousands of routes, and you've got European summer air travel in a nutshell.

If any part of that sounds familiar, here's the useful part: not every summer delay pays out, but plenty do — and knowing which is which takes about two minutes.

Applies to delays of 3+ hours on arrival, cancellations with less than 14 days' notice, and denied boarding — under EC 261 — as long as the airline, not extraordinary circumstances, is responsible.

Every factor that causes flight disruption peaks at the same time in July and August across the EU: leisure travel volume is at its highest, air traffic control networks run close to capacity, heat and storms cause more operational limits, and this is historically the season with the most strike activity. EUROCONTROL data shows Air Traffic Control delays across Europe jumped 114% between 2015 and 2024, while flight numbers rose only 6.7% in the same stretch — suggesting capacity hasn't kept pace with demand, and staffing shortages are behind the majority of flight delays. Interestingly however, a technical failure at EUROCONTROL's own Network Manager Operations Centre in Brussels on 27 July 2026 knocked out the system that manages departure slots across the continent, forcing airlines into manual workarounds during one of the busiest weeks of the year — a reminder that even the infrastructure meant to manage the chaos can add to it.

For live tracking of disruption events like the ones below, see the EU summer disruption hub.

Blocks on claiming explained

• Usually blocks a claim (extraordinary circumstances): Severe weather (storms, heat-related operating limits); Air traffic control restrictions and airspace congestion; Security risks and political instability; Strikes by third parties the airline doesn't employ (e.g. ground handlers, airport security).

• Usually does NOT block a claim: Technical or mechanical faults; Crew scheduling and staffing shortages; Airline staff strikes (pilots, cabin crew) — a European Court of Justice ruling confirms these are NOT extraordinary circumstances; Overbooking / denied boarding — always compensable.

For the full breakdown, see our extraordinary circumstances explained.

Real example: two disruptions, one summer, two different outcomes

Barcelona and Palma, 4 August 2026 — ground-handling strike

All 1,179 Groundforce staff at Barcelona–El Prat and around 600 Swissport workers at Palma de Mallorca walked out indefinitely from 4 August 2026, with Spanish officials estimating 11,600 flight movements and around 2 million passengers affected through the end of September.

Verdict: Because the strike involves independent ground handlers rather than the airline's own staff, compensation is usually unlikely — but the airline still owes meals, hotel accommodation, and rebooking or a refund.

Full details: Barcelona and Palma ground-handling strikes

Paris CDG, 5–6 July 2026 — operational disruption

Charles de Gaulle saw 38 cancellations and 42 significant delays across two days as summer traffic built, hitting routes to Dublin, Brussels, Newark, Tunis, Abidjan and Tokyo. Reporting pointed to operational pressure — staffing shortages and heavy aircraft use — rather than a new strike or weather event.

Verdict: Where the airline's own operations are the root cause, a 3+ hour delay is compensable up to €600.

Full details: Paris CDG disruption

Step-by-step: what to do at the airport when your flight’s disrupted

1. Ask a staff member for the specific reason for the delay or cancellation, ideally in writing or email.

2. Hold onto your boarding pass and any other travel documents.

3. Note your exact arrival time at your final destination — compensation is based on arrival, not departure.

4. Ask the airline for meals, drinks, and (if overnight) a hotel and transport — this is separate from compensation and due regardless of the cause.

5. Don't sign anything or accept a voucher as a final settlement before you've checked what cash compensation you might be owed.

6. File your claim with AirHelp — most EU countries give you around 3 years to do so, depending on the country. That will change in Summer 2027, when the claiming window drops from 3+ years to 9 months. So make sure you claim now, while you still can.

How to claim

Claiming with AirHelp is easy. We handle the eligibility check, paperwork, and any airline pushback on a no-win, no-fee basis. For the full legal detail on eligibility, see our flight delay compensation page, or run a free compensation check on your specific flight.

How late does my flight need to be to claim compensation?

You need to arrive at your final destination 3 or more hours later than scheduled. It's the arrival time that counts, not how late you took off.

Does a strike ever qualify for compensation?

It depends who's striking. Airline staff strikes (pilots, cabin crew) are compensable. Strikes by third parties the airline doesn't employ — ground handlers, airport security, air traffic control — usually aren't, though the airline still owes you care.

What if my flight was cancelled instead of delayed?

You may be entitled to the same €250-€600, plus a choice of a refund or a replacement flight, if you were told less than 14 days before departure and the alternative flight doesn't get you there close to on time.

Is compensation changing under the new EC 261 reform?

No — the €250/€400/€600 amounts and the 3-hour threshold are staying exactly as they are. The reform (in force from roughly late 2027) adds new protections like a guaranteed free personal bag, but doesn't touch the compensation you're owed today.