BCal Gatwick 707 operations from the 1979 UK & Ireland Airport Schedules. I've re-checked what's in the book and don't think it can be 100% correct unless there are some routings which took aircraft out and back via some weird and wonderful means that I can't work out - which is quite possible!
Mon BR 358 Arrive 05:35 Freetown
BR 667 Depart 09:45 Rio de Janeiro
BR 333 Depart 10:00 Tripoli
BR 334 Arrive 18:30 Tripoli
BR 332 Arrive 18:35 Monrovia
BR 212 Arrive 19:15 Lusaka via Tunis
BR 355 Depart 23:15 Abidjan
Tue BR 557F Depart 03:00 Lagos
BR 333 Depart 10:00 Tripoli
BR 668 Arrive 13:25 Rio de Janeiro
BR 354 Arrive 18:10 Monrovia
BR 356 Arrive 18:15 Abidjan
BR 334 Arrive 18:30 Tripoli
BR 558F Arrive 18:55 Lagos
BR 665 Depart 21:30 Santiago
BR 353 Depart 23:15 Monrovia
Wed BR 366 Arrive 05:40 Lagos
BR 246 Arrive 09:10 Houston
BR 313 Depart 10:00 Benghazi
BR 245 Depart 11:40 Houston
BR 314 Arrive 19:10 Benghazi
BR 213 Depart 22:45 Lusaka
BR 554F Arrive 22:55 Tripoli
Thu BR 561F Depart 08:45 Houston
BR 333 Depart 10:00 Tripoli
BR 675 Depart 11:00 Lima
BR 666 Arrive 15:35 Santiago
BR 334 Arrive 18:30 Tripoli
BR 375 Depart 23:15 Lagos
Fri BR 216 Arrive 06:40 Lusaka
BR 333 Depart 10:00 Tripoli
BR 323 Depart 10:45 Accra via Monrovia
BR 562F Arrive 16:45 Houston
BR 376 Arrive 16:45 Lagos
BR 334 Arrive 18:30 Tripoli
BR 215 Depart 20:45 Lusaka via Tunis
BR 351 Depart 23:15 Freetown
Sat BR 557F Depart 03:00 Lagos
BR 324 Arrive 07:00 Accra via Monrovia
BR 676 Arrive 09:00 Lima
BR 333 Depart 10:00 Tripoli
BR 681 Depart 13:30 Las Palmas
BR 352 Arrive 18:10 Freetown
BR 334 Arrive 18:30 Tripoli
BR 682 Arrive 22:30 Las Palmas
BR 371 Depart 23:15 Kano
Sun BR 216 Arrive 06:10 Lusaka
BR 317 Depart 08:50 Benghazi
BR 333 Depart 10:00 Tripoli
BR 357 Depart 11:00 Freetown
BR 556F Arrive 17:30 Lagos
BR 318 Arrive 18:00 Benghazi
BR 372 Arrive 18:10 Kano
BR 334 Arrive 18:30 Tripoli
BR 211 Depart 19:45 Lusaka
BR 552F Arrive 22:55 Tripoli
BR 321 Depart 23:15 Monrovia
DC10s were operating to Accra, Lagos, Lima, Houston (707 did one day per week, DC10 did the other six days), Santiago, Buenos Aires in that year.