At a time when leisure travellers are planning summer vacations, 4-star Porter Airlines cut fares by 50% for Canada-wide and U.S. travel through Labour Day.This sale ends Friday.

We found the lowest-priced fares on Mondays-Wednesdays and Saturdays through Sept. 4. Be flexible with travel dates, as these fares have limited availability.

Sample nonstop fares from Toronto (each way, w/tax):

• Montreal ... $75
• Windsor ... $118
• Ottawa ... $123
• Sudbury ... $123
• Sault Ste. Marie ... $130
• Quebec City ... $136
• Thunder Bay ... $141
• Halifax* ... $198
• Washington, D.C. ... $169
• New York City (Newark) ... $179
• Chicago ... $185
• Boston ... $185

Sample nonstop fares from Montreal (each way, w/tax):

• Toronto ... $75
• Sudbury ... $162
• Windsor ... $162
• Thunder Bay ... $174
• Halifax ... $184
• St. John's* ... $198
• New York City (Newark) ... $192
• Washington, D.C. ... $229
• Chicago ... $234
• Boston ... $240

Sample fares from Ottawa (each way, w/tax):

• Toronto ... $112
• Sudbury ... $154
• Windsor* ... $154
• Sault Ste. Marie* ... $159
• Thunder Bay* ... $159
• Halifax ... $175
• Moncton ... $175
• New York City (Newark)* ... $190
• Chicago* ... $223
• Washington, D.C.* ... $228
• Boston* ... $234

Sample nonstop fares from Halifax (each way, w/tax):

• St. John's ... $133
• Montreal ... $178
• Ottawa ... $178
• Toronto* ... $190

Note: Flights marked with and asterisk (*) include one stop.

About the airline: Porter Airlines boasts an official 4-star rating from Skytrax, custom leather upholstery and more legroom than any cabin in its class. In-flight service includes snacks, soft drinks, wine and beer.