Don't expect a lot of cheap airfares this summer. Analysts said airlines are holding back on deep discounts during the prime summer travel season.
Instead of summer discounts, the airlines appear to be offering some good deals on spring-time travel.
Delta Air Lines offered flights to some European cities for as little as $138 round trip on Tuesday. The offer was gone within a few hours, leading some experts to think it was a pricing error. Delta declined comment.
Consumer groups suggest to keep an eye on the internet, Twitter, and Facebook for good summer deals.
The Associated Press contributed to this report.