Airports
That would be Southampton Airport...about/under 10 miles.
Good for domestic and some international BA flights (very expensive) and FLYBE.COM for budget flights.
Alternatively Bournemouth airport is about 40 miles away good for RYANAIR.COM budget flights - whom I guess you know about anyway!
FLYBE go Dublin/Belfast to Southampton,
RYANAIR go Dublin / Bournemouth.
I would post pricing info but -
BA are the biggest rip off when it comes to flying to small cities (cost me £400 to go to scotland from Southampton! )
Budget Airlines get more expensive every time someone books on the flight and the closer to date of travel you get!
Let me know if you need more info...