How much can you save by booking directly on Air Canada's site compared to, say, Orbitz? A lot. We checked Washington to Toronto leaving Feb 9 and returning Feb 16, to cite one example, nonstop on Air Canada using Orbitz. Total fare with taxes and fees: $489 RT(US).

On Aircanada.com? $262.72 RT (US).

New York to Toronto same dates: $271 on AC vs. $483 on Travelocity (see, were not picking on Orbitz, it's just that airlines are increasingly selling their best deals on their own sites).

That's mind boggling. Airlines big and small continue to make an end run around online travel agencies, and these fares will not be listed on other fare comparison or fare forecasting or fare alert sites.

Here are today's AC WebSavers which must be booked by today for travel through February 29.

One-way fares: Today's fare*:
Boston - Montreal $147
Boston - Ottawa $108
Boston - Quebec City $152
Boston - Toronto $108
Baltimore - Montreal $108
Baltimore - Ottawa $108
Baltimore - Quebec City $152
Baltimore - Quebec City $162
Baltimore - Quebec City $172
Baltimore - Quebec City $212
Baltimore - Quebec City $234
Baltimore - Toronto $108
New York - Montreal $98
New York - Ottawa $108
New York - Quebec City $160
New York - Toronto $108
Philadelphia - Montreal $108
Philadelphia - Ottawa $108
Philadelphia - Quebec City $169
Philadelphia - Toronto $108
Pittsburgh - Montreal $108
Pittsburgh - Ottawa $108
Pittsburgh - Quebec City $134
Pittsburgh - Toronto $108
Washington - Montreal $108
Washington - Ottawa $108
Washington - Quebec City $152
Washington - Toronto $108
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