With just a one-week or more advance notice, enjoy an autumn trip to Paris or to Berlin, Germany, at round-trip rates of $782. This United Airlines exclusive also includes deep discounts of $548 to Dublin or Shannon, Ireland.

To qualify, depart through Oct. 31 or Dec. 13-19 or Dec. 24-Jan. 1, 2013. A minimum stay of one Saturday night is required. Stay up to 30 days.

A ticket-by date of Sept. 6 on these offers is questionable. I suspect that this sale is a today-only offer (8/29).

United serves these destinations with one flight connection in either Charlotte, Newark or Washington DC.

Other airfare deals to Europe that fall beneath the $800 mark include Stockholm, Sweden, at $745; $760 to Copenhagen, Denmark, and $789.50 to Oslo or Goteborg, Norway.

These rates are permitted on eastbound travel Sunday-Thursday and Monday-Thursday returns to Atlanta.

Plan to depart Jan. 9-March 21, 2013. Stay up to one year.

Buy tickets through Sept. 4. Most domestic and international carriers are participating (all service from Atlanta to Scandinavia requires one flight connection).

Sale airfares are always subject to change. Every seat on every flight is not offered at the lowest rate. Since only a limited supply of seats is available, act quickly to make your purchase.

I recommend starting the search for available seats at Kayak.com vs. calling an airline directly. You can also search for the sale at travel websites such as Expedia or Travelocity, etc.

Clara Bosonetto is a retired travel consultant.