Montpellier's provincial charm—its tramlines, its Place de la Comédie, its proximity to the Camargue—makes the last leg of any journey there feel like a reward, but getting there in comfort from New England requires strategy, since there's no nonstop option. Booking business class from Boston to Montpellier means routing through a major European hub, and after dozens of these itineraries I can say definitively: there is no nonstop service between BOS and MPL, so your routing choice determines your entire experience. Delta flies its excellent A330 or A350 business class nonstop from Boston to Paris-CDG, where a short Air France connection on an A220 or A319 gets you into Montpellier. Air France itself offers the same CDG routing with its own metal throughout, while Lufthansa routes you via Frankfurt or Munich, putting you aboard its 747-8 or A350 business class—and increasingly, the new Allegris cabin on select long-haul aircraft—before a connection down to the south of France.
My strongest recommendation, tested repeatedly: fly the transatlantic segment on Delta or Air France into CDG rather than through Frankfurt or Munich, because CDG's connections to Montpellier run more frequently and with better recovery options if your inbound flight is delayed. If you connect through Paris, budget extra time for the walk between terminals 2E and 2F, and use Air France's Salon lounges to reset before the shorter regional hop. An insider tip few travelers know: Montpellier's small airport clears passengers quickly, so even tight 90-minute connections on arrival day work fine—it's the outbound connection in Paris you need to buffer, not the Montpellier landing.
Seasonality matters enormously here. January, February, March, October, and November consistently offer the strongest business class value, since Provençal tourist season peaks in summer and airlines price accordingly. Given the volatility in fares across these three carriers and their shifting hub strategies, setting up fare alerts for this specific city pair is the smartest move—prices swing quickly, and the best business class fares on this route rarely last more than a few days once they appear.