It is effectively a thrice daily feeder into the Lufthansa network as you can connect to a lot of international destinations at either FRA or MUC (with the exception of most African and South American destinations which are FRA only). So you could route outbound via FRA and inbound via MUC or vice versa. Timings are of course not exactly tailored to the lufthansa hub waves, but reasonable connections should be possible.
Bristol to Germany
BM1821/LH5301 MTWTFSS BRS 06:40 FRA 09:20
BM1845/LH5309 MTWTFSS BRS 12:05 MUC 15:0
BM1827/LH5307 MTWTFSS BRS 16:30 FRA 19:15
Germany to Bristol
BM1822/LH5302 MTWTFSS FRA 09:50 BRS 10:30
BM1846/LH5310 MTWTFSS MUC 16:10 BRS 17:10
BM1828/LH5308 MTWTFSS FRA 20:05 BRS 20:45
LH longhaul destinations served from both destinations: Bangkok-Suvarnabhumi, Beijing-Capital, Boston, Charlotte, Chicago-O'Hare, Delhi, Dubai-International, Hong Kong, Houston–Intercontinental Johannesburg, Los Angeles, Mexico City, Montréal-Trudeau, Mumbai, New York-JFK, Newark, Riyadh, San Francisco, São Paulo-Guarulhos, Seoul-Incheon, Shanghai-Pudong, Singapore, Tel Aviv-Ben Gurion, Tokyo-Haneda, Toronto-Pearson, Washington-Dulles,
BMI Regional agrees codeshare with Lufthansa - www.travelweekly.co.uk