This chart lists the lowest generally available round-trip fares from at least one of the three Washington area airports -- Reagan National, Washington-Dulles International and Baltimore/Washington International -- for departures July 18-24. Flights are nonstop or direct (stopover with no change of planes) except for some international flights. For ticket information, or to purchase tickets, call the individual airlines, not The Washington Post. For recorded information on how best to use this chart, call 202-334-7591.
Bargain of the Week
Southwest Airlines will begin offering nonstop service between BWI and Las Vegas on Aug. 5, and will promote the new service with a special $99 one-way fare. You must purchase tickets by July 9. The fare is valid only for nonstop flights, seats are limited, and you must complete travel by Oct. 29. Information: 1-800-435-9792, www.southwest. com.
Depart Washington July 18-24
Rio de Janeiro
Fares, which were researched Thursday, may change without notice, do not apply to all seats on all flights and are subject to restrictions. Most require advance purchase, are available only on midweek departures and require a Saturday night stay. Certain airport taxes and surcharges are not included. Contact airlines or a travel agent for fare details and airports of arrival and departure.
SOURCES: Internet travel services and airlines.