Telegraph article recommends lightweight travel wheelchair in a bag.
The following article appeared on the Telegraph.co.uk (Published: 11:12AM GMT 20 Nov 2009). The article provided useful advice for disabled travellers and recommended a lightweight travel wheelchair in a bag from Home and Medical weighing only 8.6kg , allowing it to be stored in the hold of any aircraft. 

Advice for disabled travellers 

From useful websites to practical tips, Mark Davidson offers some advice for travellers with a disability. Laws affecting disabled travel can differ when you are abroad. 

There is a legal obligation in Britain for hotels and restaurants to provide full access to those in wheelchairs, although there can be limitations on availability. When going abroad however, laws can differ somewhat.
 
Foreign airports may provide free wheelchairs, but these may need to be booked in advance. When flying, ensure you have room near to accessible lavatories. Always ask questions tailored to your needs.
 
Bear in mind the weather. Sun-baked settings can soon turn into mud in the rainy season and never go onto a beach unless you are confident. Warmer temperatures will sap energy, especially of someone pushing a wheelchair. Make sure you have spare tyres which might be hard to purchase. 

If you have any pre-existing medical conditions bring a list of requirements; translated into the relevant language.
Public transport can be a big headache. Foreign taxis may not have the same facilities to transport wheelchairs as London cabs. 

Choose restaurants wisely. Depending on cultural habits of the country, seek advice about dining out. A wheelchair can't always squeeze between the rows of tables in the restaurant. Ask local tour guides on the facilities in that area. Ensure the exhibits in museums are at eye level and ask whether theatres have spaces. 

Realise your limitations: There were no easy access passageways or wheelchair ramps for the ancient Egyptians; a lift wouldn't look good in the Taj Mahal. Listed buildings need to retain their original architecture.

If you would like to buy the Travel Wheelchair in a Bag please click here

Link to original article
http://www.telegraph.co.uk/travel/6613177/Advice-for-disabled-travellers.html
 
Useful websites
The DirectGov website (www.direct.gov.uk/en/disabledpeople) has excellent information for disabled travellers going abroad. 

Medici Travel (0845 8800168; www.medicitravel.com) offers insurance cover for people with pre-existing medical conditions including those with disabilities. 

Home and Medical (05602 092641, www.homeandmedical.co.uk) sell travel wheelchairs, complete with travel bag, allowing it to be stored in the hold of any aircraft, weighing only 8.6kg. 

Apparelized (www.apparelyzed.com/disabled_holidays) has a good section on UK breaks for disabled travellers.
Disabled Access Holidays (0845 257 0113; www.disabledaccessholidays.com) offer a numerous destinations for those who want to venture further afield.

Disabled and Reduced Mobility Airport Guide www.parkat.co.uk/disabled/ which covers multiple accessibility issues at the Airport. The guide has been created to help relieve some of the stress and worry which is very common among disabled persons when traveling through unfamiliar environments such as an Airport