Boston (BOS) to Casablanca (CMN): 3,434 miles (5,527 km) great-circle, about 7h 20m nonstop by our estimate. Cheapest fare observed: $931 round-trip on Lufthansa, with 1 stop, departing July 17, 2026.
$931 round-trip, Lufthansa LH421, departing 2026-07-17 at 22:00, returning 2026-08-28. The recorded itinerary left on a Friday, returning on a Friday 42 nights later; the fare was observed 83 days before departure. "Book this flight" opens Kiwi.com with the same airline and dates.
At $931, it ranked 23rd of the 30 round-trip fares we recorded from BOS (median $623). That is 27.1 cents per great-circle mile (round-trip price over one-way distance), above the BOS median of 19.1 cents across 30 round-trip routes.
Routes from BOS of similar length: Paris (3,439 mi) at $613 and Praia (3,387 mi) at $916.
BOS to CMN is the only one of 30 BOS routes where Lufthansa priced cheapest. It is the 11th longest of the 30 routes we track from BOS.
Of 12 departure airports with a fare to Casablanca, Boston (BOS) ranked 9th at $931. Lowest: $205 from Paris (ORY); highest: $1580 from Perth (PER); 3 nonstop. Cheapest-fare airlines (routes): Qatar (2), Royal Air Maroc (2), Air Canada (1), airline TB (1), Egyptair (1) and Etihad (1), plus 4 more.
Travelpayouts fares (cheapest per route, observed April 25, 2026); OurAirports coordinates and elevations; IANA zones America/New_York, Africa/Casablanca; flight time is our estimate.