Travel guides

Reference material we wrote once, link to from every airline and airport page. Updated yearly or whenever rules change.

All guides

The universal model: when check-in opens, why airlines push it, what data you need, how it varies by carrier.

When airlines reject screenshots, when Wallet beats PDF, and what to do if your battery dies.

APIS rejection, name mismatch, payment hold, partner-airline confusion. The exact errors and how to recover.

Cutoff times for every major airline, and what is still possible if you missed the online window.

Passport number, ESTA / eTA / ETIAS, and how to enter the data so check-in passes first time.

One ticket vs two, through-checked bags, minimum connection times, surviving a missed connection.

The most expensive errors people make: oversize cabin bag, missed visa, wrong codeshare carrier.

Wheelchair, infant, pet, medical equipment — when online check-in does not work and what to bring.

Groups of 9+ passengers: how check-in differs, when it must be at the desk, keeping seats together.

Universal IATA limits, low-cost vs full-service differences, lithium batteries, sports equipment, liquids.

When you're owed compensation, what counts as "extraordinary circumstances", how to claim and from whom.

Saudi visa rules, Ihram and onboard procedures, special-fare flights, and what to expect at Jeddah / Madinah.