# What is the correct IATA airplane designator for the Boeing 787-10?

Wikipedia claims 781, most other sources say 78J. I can't find anything authoritative, and IATA has the gall to want US\$578 for the answer. Which one is it?

Update for clarity: Everybody agrees that the four-letter ICAO code is B78X. I'm interested in the three-letter IATA code.

• IATA isn't ICAO. The title and question body says IATA, but the WIkipedia link says ICAO, and it would seem that ICAO is what you're going for. Please Edit appropriately.
– user
May 7 '19 at 11:20
• @aCVn The Wikipedia page actually lists both ICAO and IATA (2nd column) codes. It does indeed say B78X (ICAO) and 781 (IATA) for the Boeing 787-10. The references on the Wikipedia page only list ICAO codes though... May 7 '19 at 12:25
• IATA must make literally thousands of dollars annually from this charge. Sep 9 '19 at 15:30
• Until yesterday we had an answer from someone who actually asked IATA and posted their reply. What happened to that answer? Sep 13 '19 at 9:01
• @Jpe61: One cannot copy and paste a hyperlink into an answer straight away, it has to be done manually (try it), so it was a honest mistake. I'd be more suspicious like you if it was a new user, but rep points matter, and they're a measure of trust. PS To whomever downvoted it, if you're new, it wasn't a good reason to downvote. PPS The author deleted it for another reason(s).
– ymb1
Sep 13 '19 at 14:18

## 2 Answers

I looked it up in the corresponding IATA document and I can confirm it is 781.

Sadly I think I am not allowed to attach any kind of proof from the document but the source of my information is IATA document 8803 - Aicraft Types in version no. 28.

United flies the 787-10 between Newark (EWR) and Frankfurt (FRA) on the 787-10. Knowing this, I did a search on ITA with an extension code to filter for specific aircraft types in the results. With either AIRCRAFT t:787 or t:781, the expected flight was returned. Using t:78J with the rest of the search unchanged yielded no results, so it appears that 781 is at least valid, and possibly the definitive answer since it seems unlikely that multiple codes would be in use.

• Note: Wikipedia has now changed to 78J. The change was done on 1 June with the reason: "Wikipedia is the only source on the internet that claims 781". Sep 6 '19 at 6:20
• This answer unfortunately does not provide certainty into this matter. Yes, 781 would appear to be a valid code for 787-10, but there is no proof it is the official IATA designator. Sep 6 '19 at 6:20