Prompt details

Tested on

Claude Opus 5.5

Length

547 words · 3 fill-ins

Example input

[Flight details and what happened]: Two passengers, me and my partner, booked together directly with the airline, economy, one booking reference. Airline that sold and operated the flight: Atlantica Air, a Portuguese airline based in Lisbon. Flight: Toronto Pearson (YYZ) to Lisbon (LIS), nonstop. Scheduled: depart 21:40 on Day 1 (Toronto time), arrive 09:55 on Day 2 (Lisbon time). Actual: departed 06:30 on Day 2 (Toronto time), arrived 19:05 on Day 2 (Lisbon time). Delay at arrival: 9 hours 10 minutes. At the gate on Day 1 the agent said the delay was due to the "late arrival of the incoming aircraft from Lisbon". The sky was clear in Toronto all evening and other flights were leaving. We were told about the delay at the gate, about 1 hour before departure. The airline gave each of us one food voucher for CAD 15 at about 23:30. No hotel was offered; we stayed in the terminal overnight.

[Airline replies]: We submitted a compensation claim on the airline's website on Day 5. Reply on Day 19: "Dear Customer, thank you for contacting Atlantica Air. We regret the delay of your flight. This delay was caused by adverse weather conditions, which constitute extraordinary circumstances beyond our control. Therefore, compensation is not due under applicable regulations. As a goodwill gesture we are pleased to offer each passenger a voucher for EUR 75, valid for 12 months on future Atlantica Air flights. Kind regards, Customer Relations"

[Costs and receipts]: - Dinner for two at the airport after the vouchers ran out: CAD 41.80 (receipt). - Prepaid Lisbon walking and food tour for two on Day 2 at 15:00, non-refundable, missed: EUR 118 (booking confirmation and the tour company's no-refund email). - Airport transfer booked for 10:30 on Day 2: no-show fee EUR 35, and a taxi on arrival EUR 29 (receipts). We want the compensation we're owed and our costs back. We have not accepted the vouchers.

Example output

Claim plan: Atlantica Air, YYZ to LIS, two passengers, 9 h 10 min arrival delay

1. Which rules may apply

Please send me the date of Day 1 and the flight number. The rule versions and the letter depend on them, so I've used [add date] and [add flight number] as placeholders.

Version used: EU Regulation (EC) 261/2004 as it stood before the agreed EU changes take effect, read with Court of Justice (CJEU) case law. This assumes your flight date is before those changes apply. Confirm the start date at ANAC or the European Commission's "Your Europe" passenger rights page. For Canada I used the original Air Passenger Protection Regulations (APPR) compensation bands. Canada changed its law in 2023 and the APPR has been under revision since, so confirm the version in force on [add date] at the Canadian Transportation Agency (CTA).

Assumptions (one line each):

You live in Canada.
Atlantica Air is a "large carrier" under APPR, meaning 2 million or more passengers in each of the two previous years.
You paid nothing for a hotel.
The €35 no-show fee is all you paid the transfer company, and the €29 taxi replaced that transfer.

Distance: about 5,740 km great-circle, so it falls in the "over 3,500 km" band.

Rule	Status	Applies because	What it could give	What the airline must show to refuse	Confirm at
EU261	Likely (claim under this)	Flight from a non-EU country into the EU, run by an EU (Portuguese) airline (Art. 3(1)(b))	€600 per passenger. Band: over 3,500 km and 3 h or more late at arrival (Art. 7(1)(c), Sturgeon). The 50% reduction only applies to delays under 4 h. Care regardless of cause: meals, plus a hotel because departure slipped to the next day (Arts. 6, 9). Costs you paid for care that wasn't given can be reimbursed.	That an extraordinary circumstance (Art. 5(3)) directly caused this delay, and that it took all reasonable measures. For a late incoming aircraft it must show the circumstance hit the earlier flight and carried through to yours (CJEU C-74/19, TAP). Care is owed even when circumstances are extraordinary (C-12/11, McDonagh).	ANAC (Portugal)

Claude Opus 5.5

Claim Flight Delay Compensation – Flight compensation prompt for ChatGPT and Claude

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Claude Opus 5.5

This prompt builds a claim for a delayed or cancelled flight or a refused refund. Paste the flight details, the airline's replies and your costs; you get the rules that may apply, the amounts, the letter and an escalation path.

What you get

The passenger rules that may apply to your flight, and what each could give
What to claim per passenger: compensation, refund and costs, each with its basis
A firm reply to the airline's refusal, or a first claim letter
The escalation path if they say no again, with time limits to confirm

How to use it

1
Get the times right
Use the scheduled and actual arrival times at your final destination, from your booking, the airline app or a flight tracker.
2
Check the rules table
Confirm each rule and amount on the regulator's site the table names before you send the letter.
3
Send, wait, escalate
Send the letter with copies of your receipts, wait the 14 days it asks for, then take the next step on the escalation list.

Better results

If the airline blames weather, ask which weather event, at which airport and at what time. A general line is hard to check, and a specific one may not match what you saw.
Hold off on accepting a voucher until you have decided on your claim, and read whether accepting it settles the claim.
Keep costs apart from compensation: your receipts support a cost claim even when compensation is refused.

Questions

How do I claim flight delay compensation?

Check which passenger rules cover your flight, such as EU261, UK261 or Canada's APPR, then claim in writing from the airline that operated it, with your booking, times and receipts. If it refuses, answer its reason, then go to the regulator or an alternative dispute resolution body.

Can ChatGPT write a flight compensation claim?

Yes. ChatGPT, Claude or Gemini can write a clear flight compensation claim from your flight details, the airline's replies and your receipts. Confirm the rule and amount on the regulator's site, because passenger rules change and the airline's size or home country can change what applies.

Is weather an extraordinary circumstance?

Weather can be an extraordinary circumstance that excuses compensation, but the airline generally has to show that the weather caused your delay and could not be avoided. If the reason does not match what you saw, ask the airline for details of the weather event before you escalate.

How much is EU261 compensation?

Under EU261, compensation for arriving 3 hours or more late is 250, 400 or 600 euros per passenger, depending on the flight's distance. It covers flights leaving the EU, and flights into the EU on an EU airline. Confirm the current rules on the EU's Your Europe site.

Updated 8 Nov 2026