- Sky Europe fly Brussels to Krakow.
- Blue1 fly Brussels to Helsinki (not sure if they fit the low cost category though).
- Virgin Express fly to a dozen or so destinations, but will merge with SN Brussels from next March to form "brussels airlines", which cannot however be considered low cost, despite great efforts. They are getting a lot cheaper though, and do offer one way fares which is a good start
- Jet Air Fly can have some very good deals, as can the likes of BMI, BA, SAS.
- Aer Lingus fly Brussels to Dublin.
- Swiss, Lufthansa, Iberia, VLM, Alitalia and TAP are ridiculously expensive anytime I check them out...
Ryanair wouldn't touch BRU with a pole. And even the likes of Easyjet couldn't negotiate successfully with BRU. Easyjet even considered (are considering?) Charleroi!
You see, passenger charges are through roof at BRU!!!!
Example:
Recently I booked BRU - LIS return (brussels airlines)
Price before taxes: €10
Price after taxes: €85
I also booked CRL - SNN return (Ryanair)
Price before taxes: €0.02
Price after taxes: €26