The distance from Toronto (YYZ) to London (LHR) is about 5,707 km. Canada and United Kingdom are treated differently by the rules, so the two directions can give different answers.

Both directions, four carrier cases

Each row is a flight that lands 4 hours late with no extraordinary circumstances. The carriers are examples of how the airline changes the result. They are not a statement about which airlines fly this route.

Computed results for YYZ and LHR
DirectionOperating airlineResult
YYZ to LHRAir CanadaCanada APPR CAD 400
YYZ to LHRBritish AirwaysUK261 GBP 520 and Canada APPR CAD 125 (up to CAD 400)
YYZ to LHRDeltaCanada APPR CAD 125 (up to CAD 400)
YYZ to LHRKLMUK261 GBP 520 and Canada APPR CAD 125 (up to CAD 400)
LHR to YYZAir CanadaUK261 GBP 520 and Canada APPR CAD 400
LHR to YYZBritish AirwaysUK261 GBP 520 and Canada APPR CAD 125 (up to CAD 400)
LHR to YYZDeltaUK261 GBP 520 and Canada APPR CAD 125 (up to CAD 400)
LHR to YYZKLMUK261 GBP 520 and Canada APPR CAD 125 (up to CAD 400)

By length of delay, YYZ to LHR

Delay length and result on Air Canada
Arrival delayResult
2.5 hoursNothing owed under these rules
3 hoursCanada APPR CAD 400
3.5 hoursCanada APPR CAD 400
4 hoursCanada APPR CAD 400
6 hoursCanada APPR CAD 700

Check your flight

Where the trip started. For one booking with connections, the first airport.

Where the trip ended: the final destination.

The operating airline, not the one on the ticket. A boarding pass or the flight status page names it.

What happened

At the final destination, when the aircraft door opened.

We read this to explain the result. We never decide whether it counts as extraordinary.

Carried into the claim letter. It does not change the amount.

Results

Enter both airports and the airline to see a result.

Loading the airport list

Choose where the trip started, where it ended, the airline and what happened. The result updates as you type.

See also the rules, the claim guide and the guide on flights from the Netherlands to the Caribbean.

Questions about this route

Which rule covers a delayed flight from Toronto to London?
It depends on the airline. The table shows four carrier cases. The rule follows the departure airport and the license of the operating airline.
How is the distance measured?
As the great circle distance between the two airports, about 5,707 km here. The figure is approximate.

Information, not advice

Hours Late is not a law firm and not a claims company. It does not file claims for you. The results are estimates from published rules and the details you enter. They are not legal advice. Airlines and courts decide each case.

Sources