I've posted this under specific topics, but thought I'd repeat and share here.
After we were just canceled by British Airways, my husband found a site which tracks past airlines' flights. He found Flight Aware, but I'm sure there are others. If the info he found is correct, the flights we were sold haven't flown since March, 2020. In fact, if the info is correct, British Airways hasn't flown any thing into/out of San Diego since then.
Our outbound flights were just canceled [and rebooked with partner American]; waiting for the return flights to be canceled.
The fates are making international trip harder, but like many of you, we are determined to travel.
Good luck to all!