Major carriers operating or offering connections between George Bush Intercontinental Airport (IAH) and Sangster International Airport (MBJ) in March include full-service airlines that provide one-stop routes via hubs and occasionally seasonal nonstop services. When comparing airlines, consider flight duration, baggage allowances, seat selection fees and onboard amenities—full-service carriers often include checked baggage and inflight refreshments, while low-cost or connecting options can be cheaper but add ancillary fees. Read recent reviews, examine March flight schedules, and factor loyalty program benefits when choosing an airline. CTA: Use the airline comparison tool to filter March flights by price, nonstop status, and baggage policy.