BOAC
| Date | Clue |
|---|---|
| 2011-07-31 | U.K. carrier, once |
| 2011-02-23 | Old U.K. carrier |
| 2009-08-16 | Airline mentioned in "Back in the U.S.S.R." |
| 1997-11-19 | Onetime airline |
| 1997-07-06 | Former Eur. carrier |
| 1997-05-18 | Former Eur. airline |
| 1997-02-14 | U.K. carrier of old |
| 1995-04-01 | Defunct airline |
| 1995-01-04 | Bygone airline |
| 1994-07-01 | Whilom airline inits. |