On the Airbus you find it on the Data page at LSK5L (just above the Equi-time point key at 6L)
FCOM 4 info cut and pasted.................
The CLOSEST AIRPORTS page displays the four closest airports, from the position of the
aircraft, found in the navigation database (ref. FCOM, 4.03.28 for the page description), and
the 5th airport, as selected by the crew.
For each airport, the FM computes :
– The BRG/DIST/ESTIMATED UTC from the position of the aircraft to the corresponding
airport.
– The EFOB at the airport, assuming an EFFECTIVE WIND (defaulted or entered by the
pilot).
Note: When the CLOSEST AIRPORTS page 2 is selected, the list of airports is
automatically frozen, as indicated on the page.