One-way or round-trip: which flight should you book?
Round trips aren't always cheaper. Here's how to decide, and when two one-way tickets make more sense.
September 20, 2026
Baltimore/Washington International Thurgood Marshall Airport (BWI) serves the Baltimore and Washington, D.C. region and is a major base for low-cost carriers, making it a great-value gateway to the Mid-Atlantic.
Southwest, Spirit, American Airlines, Delta, United. Routes and schedules change, so search your dates to see who flies when.
Spring (April to June) and fall (September to October) bring mild weather and lower fares. Summer is warm and busy; winter fares are often cheapest.
Light rail, the BWI Marshall rail station and frequent shuttles connect the airport to downtown Baltimore in about 20-30 minutes; rideshares and taxis are also available.
Round trips aren't always cheaper. Here's how to decide, and when two one-way tickets make more sense.
September 20, 2026
What usually counts as a personal item, a carry-on and a checked bag, and how to avoid surprise fees at the airport.
September 18, 2026
Passports, visas, arrival times and what to pack in your carry-on: the essentials, in order.
September 15, 2026