This is great news for anyone who has been sitting on a load of Southwest Rapid Rewards Points. From BWI to Montego Bay, for example, we found flights for as low as $189 or 8,000 points one way (plus $49 in international taxes and fees when booking with points). The competition should also help lower the prices of other airlines flying direct from those cities. For the same dates of travel, a quick search revealed that Southwest was about $25 cheaper than U.S. Airways for a roundtrip ticket from BWI to Montego Bay.
If you're planning a Caribbean or Mexican jaunt next winter, head over to Southwest.com and start playing around with some dates.