The vouchers you mention are only available through the airlines
themselves, to employees or VIPs. Considering the belt-tightening that
carriers have had to undergo in recent months, I'd be very surprised
if anyone other than employees can fly at 75% off face value,
especially if they wish to choose their destination or travel time. If
discount vouchers were available in decent numbers, you would
certainly find them for sale on ebay by employees looking to make a
quick buck. The fact that few such vouchers are not for sale suggests
there are very few issued at all.
Most of the vouchers for sale today are either awards given to
frequent fliers, or compensation given to travelers bumped off
The Ebookers travel vouchers (http://www.ebookers.com/services/vouchers.html
) are gift certificates. The company also offers what appear to be
package vacation deals.
Your best bet as far as vouchers go is to purchase gift certificates
at a discount from to the cost of the flight, and the best place to do
that is through a reseller.
On ebay, search for "voucher" under the travel section
), and you get more than 400 choices. Available products include
vouchers for flights on Southwest and United and a host of hotel,
resort, and car-rental coupons. Search for "asia" and you get fewer
choices, the most appealing being two round-trip tickets to Asia from
the U.S. for $1,800.
You'll probably get more choices if you search for the country or city
where you wish to go.
Click on the Airline link and you'll get more than 200 choices,
including this discount ticket to Osaka:
It takes time to sort through the junk, but you can usually find good
deals on ebay.
Another potential source for discount travel coupons is fatwallet.com
I should warn you that buying and selling travel vouchers is often
illegal. Every airline's voucher policy is different, and many, if not
most, vouchers contain fine print that forbids resale. However, the
market for such vouchers is brisk, and people seem willing to buy at
their own risk.