How to get a safe gluten-free meal on a flight

Every full-service airline nominally offers the standard IATA special-meal code GFML (gluten-free meal). In practice it is a gamble: one celiac couple's log of 47 long-haul requests had 28 arrive correctly, 15 arrive unlabelled (4 sent back) and 4 not arrive at all (source). Here is how to stack the odds in your favour.

Before you fly

1. Request GFML when you book. Use the special-meal field. Some airlines (travellers mention Aer Lingus and WestJet) need an email or a phone call.
2. Respect the deadline. Most airlines need 24-48 hours' notice. Rebookings close to departure often lose the meal.
3. Check 48 hours out that the meal is still on the booking; system changes can drop it.
4. Call 24 hours out and note the agent's name.
5. Know who operates the flight. On a codeshare, the operating airline's caterer makes the meal.
6. Consider the departure airport. The caterer at your departure airport matters more than the airline's reputation. Travellers report the same airline being great from its hub and weaker from outstations (Qantas from Sydney vs Los Angeles, for example).
7. Cabin class matters. Several travellers report much better GF meals in business and first than in economy.

At the airport and on board

1. Confirm at check-in and at the gate that the meal shows on the manifest.
2. Introduce yourself to the crew when boarding. Travellers report GF meals given to other passengers, or lost after a seat change.
3. Some travellers order GF for a companion too, so there is a spare.
4. Read every label. Common slip-ups: regular bread rolls, desserts and grain salads (farro) on the GF tray. GF meals are sometimes merged with vegan meals. When in doubt, leave it out.

Pack a backup kit

• Protein bars and GF crackers, plain nuts, a shelf-stable protein (tuna or chicken pouch), hard fruit.
• Hot-water meals (instant oatmeal, soup or noodle cups, dehydrated camping meals): crew will give you hot water.
• Wipes for your tray table, and a dietary card in your destination's language.
• Check customs rules: fresh food and meat often must be eaten or left on the plane.

Tips summarized from GF Getaway and traveller discussions on Reddit (1, 2, 3).

After you land

Tell the next traveller how it went. Submit a flight report