List every checkpoint on the day
A bag may pass an airline check-in and still fail a train or venue rule later. Write down departure airport security, airline boarding, rail transfers, and the event gate. For each stop, record the accepted bag categories, dimensions, piece count, storage method and any time-specific condition. The strictest dimension is only one part of the decision.
For example, the 2026 US Open event information prohibits backpacks, while a flight policy can permit a backpack as an under-seat item. A daypack that meets the flight size may still be unsuitable for the event. The right response might be to use a tote or store the bag before the venue, subject to that event’s own rules.
| Checkpoint | Question | Evidence to keep |
|---|---|---|
| Airport | Does security permit the contents? | Airport authority page |
| Airline | Which bag category and fare allowance? | Operating carrier and ticket |
| Train | How many pieces and how must they be labelled? | Operator and service page |
| Event | Is this bag type allowed; where is storage? | Event-specific venue page |
Use a rule matrix instead of one universal size
Record each policy as its own row. A flight might specify one under-seat item and a separate overhead bag; a train might publish per-item maxima and mandatory labels; a venue might prohibit backpacks or require screening. Do not collapse these into one “maximum bag size,” because that erases differences in item type and the consequence of exceeding a limit.
The math is straightforward once the source form is clear: compare side caps side by side, calculate sums only for sum rules, and retain the unit and published boundary. If any source leaves axes unlabeled, keep them unlabeled. A result that passes the arithmetic is still subject to screening, space and staff decisions.
- Keep airline, railway and venue rules in separate rows.
- Record fare, operating carrier, event date and route.
- Mark any unknown storage or exception as unresolved.
Plan for the most constrained handoff
If the event prohibits a backpack, choose a permitted replacement only after checking the event’s exact allowed bag types and limits. If a train has a reserved luggage space, include the seat reservation in your ticket plan. If the airline may gate-check an overhead item, keep essentials in a permitted small item. Each handoff needs a concrete action.
Do not assume that the hotel, station, arena or airport will accept luggage based on another organization’s policy. Check location, operating hours, accepted bag size, fees and retrieval timing directly. The storage option has to work in the itinerary; a bag check closing before the end of an event is not useful for that route.
Recheck on the actual date
Venue rules can be event-specific, and airline tickets may show a fare allowance different from a general marketing page. Rail policies can depend on ticket issuer or train family. Reopen each official source close to travel and check for a dated event notice, route change or operational update. Carry a screenshot, but follow current staff instructions if the policy changes.
This guide offers a comparison method, not an admission or boarding decision. If two official pages conflict, preserve both statements and contact the operator for the exact itinerary. Avoid choosing the more permissive wording without a source that resolves the conflict.
Sources and check dates
- Iberia hand luggage policy ↗Checked 2026-10-15 · Source published: not stated · Source updated: not stated
- SNCF TGV INOUI luggage policy ↗Checked 2026-10-15 · Source published: not stated · Source updated: 2026-09-30
- 2026 US Open event bag policy ↗Checked 2026-10-15 · Source published: 2026-09-04 · Source updated: not stated
- JR West oversized baggage policy ↗Checked 2026-10-15 · Source published: not stated · Source updated: not stated