American Airlines and British Airways typically operate the most convenient nonstop options between Dallas/Fort Worth International Airport (DFW) and London Heathrow Airport (LHR) in October, offering business class, premium economy (on some services), and economy cabins. British Airways often bundles lounge access and flexible fares for business travelers, while American Airlines can offer competitive award availability and codeshares that extend connectivity. Virgin Atlantic may provide seasonal or partner-operated options with strong onboard service and retailing. Check baggage allowances, seat selection policies, and onboard amenities when comparing fares, as some cheaper economy fares exclude checked bags and seat assignments. CTA: Compare fares and amenities across airlines to choose the best DFW to LHR option for your October trip.