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>Does anyone know of any other airlines that provide the same service?

Delta Airlines has GF meals but they are not very GF, especially when
prepared in an airport like Lisbon where the preparers have no idea what
gluten-free is.

Continental Airlines representatives in England said that they could prepare
me a GF meal when leaving Gatwick.  However, there is no way to make this
request when the reservations are made in the U.S.!

It had once been suggested to me to order the Seafood meal.  You get a half
dozen cold shrimp with a packet of sauce on the side.  It worked on my way
to London, but coming out of London Continental provides a warm seafood meal
with a tomato sauce already on it.

The reservation systems do have a place where the agent can enter notes in
an "other" field.  While it probably won't get you a GF meal you should ask
the agent to enter something there.  Maybe we can get the others to wake up.

Actually there are many choices of meals.  Others are: fresh fruit,
diabetic, low calorie, low chol./low fat/low sodium, kosher, non-lactose,
ovo-lacto vegetarian, strict vegetarion, and Hindu and Moslem on
international flights.