@airfarewatchdog has been tweeting all morning about cheap fares they find from the U.S. to Central and Eastern European cities. These appear to be mistakes that are not including the proper fuel surcharges when you attempt to purchase them.
I’m not sure if deals are already be disappearing. I was able to search for a couple of the city pairs AFWD suggested on ITA Matrix and get similar prices for some routes and not others. The ones where I found similar prices often had different connecting flights. But looking at the fare breakdown in ITA, it did show that the fuel surcharge was not included as it should be (look for a line that says YQ or YR).
Furthermore, when I went to book these flights on AA.com, I again found different connecting cities than on ITA Matrix. And prices initially seemed higher when I selected an outbound flight. Then I went to pick a return and saw that it LOWERED the fare by over $200. This is unusual. Usually the return options all list an increase or no change in fare.
This is a great opportunity for fall travel if you had plans to go to Europe. The deals are not from every U.S. city, and they are not to every European city. In some cases it’s still not that cheap because the base fare is high enough, but you should still be saving $300-400 in many cases. Fares from some East Coast airports are under $500.
Remember that you can hold flights on AA.com for up to 24 hours without booking. So consider holding several flights now and making your decision later if you want to proceed and book. Unlike some other carriers, you do not have the chance to cancel your flight within 24 hours after you have paid — carriers are required to offer one option or the other, and AA chooses to offer a 24-hour hold.
One major caveat in my book: As far as I can tell, all of these mistake fares include several codeshare flights sold by American Airlines but operated by partners, including US Airways. That could complicate your ability to use one of AA’s systemwide upgrades if you have Executive Platinum status. I don’t really want to make two or more connections (including positioning flights within the U.S.) and do the whole thing in coach. Others will behave a better opportunity to take advantage if their home airport is included in the mistake.