Airline Coupons

Airlines are going where other online retailers have boldly gone before: coupons and promotional codes. Within the past six months, most of the major airlines have offered "coupons," or promotional codes, you type into their Webs sites to claim the cheapest fares. To get the codes, sign up for the airlines' frequent flier programs and e-mail newsletters. Or use Google to search on the phrase "promotion code" plus the name of your airline. Be sure to use only the most up-to-date results. Airfarewatchdog's blog is another source.

Air France is snipping $75 off of round-trip fares from the U.S. to several European countries for departures in March if you enter the promo code MARCH442 at airfrance.us. The discount must be redeemed by Feb. 17 and is only valid for March travel.

Airfarewatchdog, which has been tracking the coupon code trend, says this is the first time AirFrance has offered a code. According to the Web site, "researchers tested several routes covered by this coupon code discount to see if, even with the discount, the fares we found were lower than what other airlines were charging without the discount. And in most cases, we discovered that Air France had the best fares when the discount was applied, especially on nonstop routes to Paris, but also to other destinations such as Prague and Zurich."

As a rule, coupons (or "promo codes") can be used once per customer. (You can't keep buying different tickets using the same code. When you book your reservation, you won't see the discounted price until the very end. When you get to the page where you enter your personal information, there will be an option for "do you have a promotional code?" or "do you have a coupon code?" Enter your code then, and the discount will be applied to your transaction.