How can I request dietary accommodations with complimentary meal options from United Airlines?

Check your flight itinerary for free meals. The itinerary will state if meals are provided or available for purchase.
Request a special meal when booking your flight or add it to an existing reservation.
When signed in to MileagePlus, you can request special meals for your flight during booking.
You can also add a special meal request to an existing reservation using the United Airlines website or app.
MileagePlus members can set meal preferences for united.com flights. Before confirming the reservation, assign the correct special meal to the traveler.
Website for United Airlines:
• Go to "My Trips."
• Choose your trip or search by confirmation number and last name.
• Under travelers, select "Special Meal."
• Choose the traveler, enter their meal preference, and click "Send request."
The United Airlines app:
• Open "My United" in the app.
• Select your trip or search by confirmation number and last name.
• "Edit traveler information."
• Select "Edit" for travelers requesting special meals.
• Select a meal and click "Save to reservation."

Routes offering these special meals include:
Over 2,000-mile domestic flights to Mexico and the Caribbean, luxury transcontinental flights, air travel between Hawaii and the mainland. International short- and long-haul flights from the U.S. (except Mexico, Canada, and the Caribbean)
Asian Vegetarian (AVML), Child's Meal (CHML), Gluten Intolerant (GFML), Kosher (KSML), and Vegan (VGML) meals are available from United Airlines.