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Race Science

The Fastest Route to Your Race Is Usually the Worst One for Your Bike

Transfers cause 39% of all mishandled baggage — and a bike box is the bag you least want mishandled. Fewer legs is not the same as less risk, and the difference is where the legs connect.

Race Science · 6 min read
WHERE BAGS ARE MISHANDLED · SITA, 2025 DATA Transfer 39% the single largest cause — and the one a bike box is most exposed to All other causes 61% loading, ticketing, security, tagging, arrival handling — combined THE ROUTING TRADE 2 legs, foreign plane change One high-risk transfer. Two ground-handling operations. Customs clearance mid-trip. 3 legs, one alliance, one jurisdiction Every transfer routine. One operator accountable end to end. Usually the better bike day.
Transfers are the single largest cause of baggage mishandling, and the risk concentrates where a bag changes customs jurisdiction.

There is a decision every athlete makes when booking a destination race, usually without noticing: the two-flight itinerary with a connection abroad, or the three-flight itinerary that never leaves one airline's system.

Most people take the shorter one. Fewer flights, fewer things to go wrong.

For a bike, that reasoning is backwards.

Where bags actually go missing

Baggage does not mostly get lost in the air. It gets lost in transfer. According to SITA's 2026 industry report, transfers accounted for 39% of all mishandled bags in 2025 — the single largest cause, ahead of loading failures, ticketing and security. The overall mishandling rate was 4.9 bags per 1,000 passengers, an improvement of 23% year on year, but the transfer share barely moved: it was 41% the year before.

Two things follow. Baggage handling as a whole is getting better. And the part of the journey where it goes wrong is stubbornly the same part — the moment a bag has to be taken off one aircraft and put on another.

A note on the source: SITA sells baggage-handling technology to airlines, so it has a commercial interest in mishandling being visible as a problem. That bias runs toward emphasising the issue, not minimising it. The directional finding — that transfers dominate — is consistent across years and matches the US Department of Transportation's separate reporting that mishandled-baggage rates are rising again on US carriers.

Why this hits bikes harder than suitcases

A bike box is oversized, heavy, awkward, and usually handled outside the normal automated belt system. That means more manual touches, and manual touches are where transfer failures happen. It is also, unlike a suitcase, not replaceable at destination. You cannot buy a spare on race morning, and the rental bike you can find at short notice will not have your fit.

The asymmetry matters. A delayed suitcase is an inconvenience. A delayed bike box is a DNS.

The rule that follows

Not all connections carry the same risk, and this is the part most athletes miss. What matters is not the number of stops but whether the bag has to change jurisdiction as well as aircraft.

A connection inside one customs area — one US hub to another, or a Schengen-domestic hop after clearing customs at the first European airport — is a routine transfer. The bag stays in one system, tagged through, handled by one alliance's ground operation.

A connection that requires clearing customs in a third country is a different class of event. The bag may need collecting and re-checking. It moves between two carriers' ground handlers, sometimes between terminals, often on a tighter window than the schedule suggests. This is where a bike box disappears.

So the useful comparison is not two legs versus three. It is two legs with a foreign plane change — fewer flights, one high-risk transfer, two ground-handling operations — against three legs that stay inside one alliance and one customs jurisdiction until the destination, where every transfer is routine and one operator is accountable end to end.

The second is usually the better bike routing, and it is almost always the one that looks worse on a booking site.

How to book it

Route the long-haul leg so it lands in the country the race is in, if such a routing exists at all. If it does not, prefer a domestic connection at home followed by one long-haul leg over a short first leg and a connection abroad.

Keep the whole itinerary on one ticket. A single ticket makes one carrier responsible for through-checking the bag and for rebooking you if a leg fails; two separate tickets make the failure your problem, and a bike box is an expensive problem to own.

Take the longer connection. The tight one is where the transfer fails, and the time saved is worth far less than the bike.

Key takeaways

  • Transfers, not flights, are where bags go missing: 39% of all mishandled baggage in 2025, the single largest cause.
  • Overall mishandling improved 23% year on year to 4.9 bags per 1,000 passengers, but the transfer share barely moved.
  • Bike boxes are hit harder than suitcases — oversized, manually handled, and not replaceable at the destination. A delayed bike is a DNS, not an inconvenience.
  • The risk sits in connections that cross customs jurisdictions, not in the raw number of legs.
  • Three legs inside one alliance and one customs area usually beats two legs with a change abroad — and it almost always looks worse on a booking site.
  • Book it on one ticket, and take the longer connection.

Sources

SITA is a supplier of baggage-handling technology and has a commercial interest in the visibility of mishandling as an industry problem; that bias runs toward emphasising the issue. The transfer-share finding is consistent across multiple reporting years and is corroborated directionally by independent government reporting.

Part three of a three-part series on race travel. Previously: We Checked 330 Race-Travel Routings. 38 Didn't Exist. and Your Home Airport Decides Your Race Calendar More Than Your Fitness Does.