Connecting Flights: How Delay Is Measured at Your Final Destination

Your first flight leaves an hour late. It does not sound like much, until you land at the transfer airport and watch your connecting flight depart without you. By the time the airline gets you to your destination, you are five hours behind schedule. Yet the delay on the first flight was only an hour, so is that a delay that counts?

It is. Under EU rules, the answer to how is delay calculated for connecting flights is simple: what counts is how late you reach your final destination, not how late any single flight was. A short departure delay early in the journey can therefore lead to full compensation at the end of it.

This guide explains how the delay is measured on a journey with connections, why the first flight's delay alone does not decide, why connections are missed in the first place, which airline is responsible, when a missed connection does not lead to compensation and what to do if it happens to you. The rules referred to are those of EU Regulation 261/2004, and more on this situation is available on our missed connection compensation page.

How Is Delay Calculated for Connecting Flights?

The regulation defines the final destination as the destination on the ticket presented at check-in or, for directly connecting flights, the destination of the last flight. The European Commission's guidelines confirm that for compensation, the delay is assessed against the scheduled arrival time at that final destination.

In case C-11/11, decided in 2013, the EU Court of Justice applied this to connecting flights: a passenger on directly connecting flights is entitled to compensation if they reach the final destination three hours or more late, even if the first flight left with a delay shorter than the limits that trigger the airline's duty of care. The earlier case law had already established that a delay of three hours or more at the final destination gives the same right to compensation as a cancellation.

Arrival also has a precise meaning. In case C-452/13, the Court held that it is the moment at least one aircraft door is opened at the final destination and passengers are allowed to leave, not the moment the wheels touch the runway.

One condition underlies all of this: the flights must be on one booking reference. A single booking reference is what makes two or more flights one journey with one final destination. Separate tickets are treated differently, as explained below.

Why the Delay of the First Flight Alone Does Not Decide

Because only the arrival at the final destination counts, the size of the first delay matters only through its consequences. A one-hour airline delay that makes you miss a connection and puts you on a flight arriving four hours late gives you a right to compensation. A three-hour delay on the first flight that the airline absorbs by rebooking you on a connection arriving two hours late does not.

The same applies to the second flight. If the first flight is on time but the connecting flight arrives at your final destination three hours or more late, the journey as a whole is delayed and compensation can be due. A flight cancellation of the second leg works the same way: what matters is when the replacement gets you to your final destination. General rules on delays are explained on our flight delay compensation page, and cancelled flights are covered on our cancelled flight compensation page.

Why Connections Are Missed: Minimum Connection Time and Delay Propagation

Knowing how connections are built helps you judge the connection risk on your booking. Every airport publishes a Minimum Connection Time, or MCT, for transfers between flights, and airlines across the entire industry use these intervals when they sell connections on one booking reference. Many airlines will not sell a connection shorter than the MCT.

MCTs are shorter for domestic flights than for international ones, because customs and immigration processing increases the connection time needed on international journeys. Terminal changes, a transfer between a partner airline's terminal and the first airline's, and passenger mobility are also considered when MCTs are set, which is why a connection within one Star Alliance hub can be shorter than one across the airport.

Airlines also schedule operational buffers into their timetables to absorb minor delays, and a flight is considered on time in industry statistics if it departs or arrives less than 15 minutes behind schedule. Delays propagate when those buffers are exhausted: airport congestion, weather or air traffic conditions hold a late arriving aircraft on one route, and every later flight it operates inherits the delay.

For that reason, airlines track the status of inbound and outbound flights to assess potential delays and usually know in advance which passengers are likely to miss their next flight. That matters for the rerouting duty discussed later.

How Connecting Flight Delay Is Calculated: A Worked Example

Here is how connecting flight delay is calculated in practice. You are on a business trip, booked on one reservation from Vienna to New York JFK with a change of planes in Frankfurt, scheduled to arrive at 14:00 local time. The flight from Vienna leaves 70 minutes late, you miss the connection in Frankfurt, and the airline rebooks you on a later flight. It lands in New York at 18:15, and the doors open at 18:30.

The reference point is always the scheduled arrival time shown on your booking for the final destination, not the arrival time of any rebooked flight. Both times are read in the local time of the arrival airport, so the time zone difference plays no part.

• The delay: measured from the scheduled 14:00 arrival to the 18:30 door opening at the final destination, which gives four hours and 30 minutes. The 70-minute delay in Vienna is irrelevant as a number.

• The distance: the great circle distance from Vienna to New York JFK, about 6,820 km, not the two flights added together.

• The amount: €600 per passenger, unless the airline proves extraordinary circumstances. Had the doors opened at 17:30, three and a half hours late, the airline could have reduced the amount to €300, because on flights of more than 3,500 km, arrivals between three and four hours late allow a 50% reduction.

The way distance is measured on connecting journeys is explained in detail in our guide on how flight distance is calculated for compensation.

A Second Example: Arriving Less Than Three Hours Late

You fly from Belgrade to Paris with a change of planes in Vienna. The first flight leaves two hours late, you miss the connection, and the airline rebooks you on the next flight from Vienna, which lands in Paris 2 hours and 50 minutes after your original arrival time.

Despite the missed connecting flight, no compensation is due for the delay, because you reached your final destination less than three hours late. Care while waiting and reimbursement of reasonable costs are separate rights and are assessed on their own.

Which Airline Is Responsible?

Compensation is owed by the operating air carrier. On connecting journeys with different airlines, that raises the question of which one. In case C-502/18, decided in 2019, the EU Court of Justice held that connecting flights on a single reservation form a whole.

Passengers flying from Prague to Bangkok via Abu Dhabi were therefore entitled to compensation from the European airline that operated the first flight, even though the long delay occurred on the second flight, operated by a non-EU partner airline under a code-share agreement. That airline can then seek recourse from its partner.

The same case law confirms that a journey departing from the EU on a single reservation stays within the rules even when the connection takes place outside the EU (cases C-537/17 and C-502/18). What matters is where the journey began and how it was booked.

In practice, you do not need to work out whether the delay was the airline's fault or its partner's. The compensation claim is directed at the airline the rules make responsible, which is part of what FlyPayout checks when you submit your flight.

How Is Delay Measured for Connecting Flights That Start Outside the EU?

The same final destination rule applies, but the scope works differently. Flights arriving in the EU from elsewhere are covered when the airline operating them is licensed in the EU, Iceland, Norway or Switzerland.

According to the European Commission's summary of the case law, where connecting flights are booked as a single unit from a non-EU country to the EU with a stopover in the EU, and the long delay arises on the first flight operated under a code-share agreement by a non-EU airline, the passenger may claim compensation from the EU airline that performed the second flight.

When the Airline Gives Away Your Connecting Seat

Sometimes the first flight is late, and the airline refuses you boarding on the connecting flight because it assumes you will not make it, even though you arrive at the gate in time. The EU Court of Justice has held that an airline cannot justify refusing boarding by assuming that passengers would not arrive on time for their connecting flight (case C-321/11).

In that situation, you were denied boarding, and compensation for denied boarding can be due. See our page on denied boarding.

When a Missed Connection Does Not Give Compensation

Not every missed connection leads to compensation. The main exceptions are:

• You missed it because of your own delay at the transfer airport. The Commission's guidelines state that missed connections caused by long queues at security checks or by passengers not respecting the boarding time do not give a right to compensation.

• The flights were booked separately. The rules described here apply to connections booked together on one booking. On separate tickets, a delayed flight on the first booking does not oblige the second airline to rebook you: it may treat you as a no show, and you may have to buy a new ticket at extra cost, which only travel insurance may cover. Journeys on separate bookings are explained in our guide to separate tickets flight compensation.

• You arrived less than three hours late. If the airline rebooks you on a new flight that brings you to your final destination less than three hours late, no compensation is due for the delay.

• The airline proves extraordinary circumstances. This exemption is narrower than it looks, as the next section shows.

Extraordinary Circumstances on a Connecting Journey

An airline may, in principle, rely on an extraordinary circumstance outside the airline's control that affected an earlier flight if it directly caused the delay of your journey. In case C-74/19, decided in 2020, the EU Court of Justice added a firm condition: to escape compensation, the airline must also show that it deployed all the resources at its disposal to reroute you reasonably and in good time, including looking at direct or indirect flights operated by a different airline.

Rebooking you only on its own flight the next day is not enough if another airline could have got you there sooner. Having the airline rebook you promptly is part of what the exemption requires.

This makes the rerouting offered after a missed connection an important part of the claim. Your options for continuing the journey are explained in our guide to your right to rerouting, and the exemption itself in our overview of extraordinary circumstances.

Care While You Wait at the Transfer Airport

A missed connection often means hours at an airport you never planned to leave the aircraft at, sometimes overnight. Meal vouchers, refreshments and, where needed, hotel accommodation with transfers are separate from compensation, and the airline owes them whatever the cause of the delay.

Hotel costs, meals and transport you paid yourself because the airline did not provide them can be recovered. Our guide to meals and accommodation during a flight delay explains when these rights apply.

What to Do If You Miss a Connection

The claim is decided by what happened at your final destination, so the evidence should cover the whole journey:

• Keep your booking confirmation showing that the flights were booked together on one booking reference.

• Keep the original boarding passes for every flight, including the rebooked flight, note its flight number and record when you actually arrived at the final destination.

• Keep receipts for meals, accommodation or transport you paid for yourself at the transfer airport.

• Do not sign anything describing a voucher as settling your claims before checking; see our guide to claiming compensation after accepting a voucher.

• Check your flight with FlyPayout.

FlyPayout measures the delay at your final destination, applies the distance of the whole journey, identifies the airline responsible and pursues the claim, including your reasonable costs and legal steps where needed. How long this takes depends on the airline.

You do nothing further and pay only if money arrives, which is how no win no fee flight compensation works. Our guide to the most common mistakes that cause passengers to lose compensation covers other decisions to avoid.

Frequently Asked Questions

How is delay calculated for connecting flights on one booking?

By comparing the scheduled arrival time at your final destination with the moment the aircraft doors opened there. If the difference is three hours or more, compensation can be due, whatever the delay of the individual flights.

How is delay measured for connecting flights booked separately?

Separately booked flights are not treated as one journey in the same way. Each booking is assessed on its own, which is why a missed connection on separate tickets may leave you without protection for the onward flight.

How is delay calculated for connecting flights if I was rerouted?

In the same way: the scheduled arrival time at your final destination is compared with the moment the doors opened there on the replacement flight that actually brought you in.

Does the first flight have to be delayed by three hours?

No. The first flight's delay can be short. What matters is whether you reached your final destination three hours or more late (case C-11/11).

The second flight was operated by a partner airline. Who pays?

If you booked one reservation and the journey started in the EU, the European airline that operated your first flight can be liable for the delay at your final destination, even if the partner caused it (case C-502/18).

My connection outside Europe was operated by a non-EU airline. Am I still covered?

Yes, if the journey started at an airport in the EU and all flights were on a single reservation. The connection outside the EU does not take the journey out of the rules (cases C-537/17 and C-502/18).

I missed my connection because of long security queues. Is compensation due?

No. According to the Commission's guidelines, missed connections caused by delays at security checks or by missing the boarding time do not give a right to compensation.

I was rebooked on a flight arriving 2 hours and 50 minutes late. Is compensation due?

No compensation is due for the delay, because the threshold of three hours at the final destination was not reached. Care during the wait and reimbursement of reasonable costs you paid yourself are separate rights and still apply where their conditions are met.

Is the amount based on the distance of the delayed flight?

No. It is based on the great circle distance between your first departure airport and your final destination, even if only one flight was delayed.

The Final Destination Decides

Once you know how is delay calculated for connecting flights, a missed connection looks very different: a short delay at the start can mean full compensation at the end. Check your flight with FlyPayout: it is free, you do nothing further, and you pay only if money arrives.

FlyPayout helps passengers claim compensation, reasonable costs and downgrade refunds for delayed and cancelled flights, denied boarding, downgrades and missed connections under EU Regulation 261/2004, UK261 and related passenger rights rules. No win, no fee: you pay only when your money is paid.