But to the relief of travelers, United's high fares spawned discount airlines.

High seat sales have some negative implications for vacation travelers who fly on discount airlines.

Nor do the European sites display fares from all of the discount airlines.

Indeed, for many travelers, the best part of the discount airlines is not having to fly them in order to enjoy their benefits.

It is one of the few discount airlines operating in Canada which still offers full meal service.

Remember the old airlines, before the discount airlines came along.

Those discount airlines are not known for their customer service or user-friendly attitudes.

In fact, it makes perfect sense for discount airlines to be less safe than traditional full-price carriers.

It's easy to fly about Europe inexpensively using discount airlines for those longer distances.

But some discount airlines have leapt on the opportunity to give bargain-hunters a higher level of service.