Flying or driving? Even with Air Miles the price is basically a wash

I’m planning to travel to Montreal for a month. The concern was whether to drive or fly. I was going to drive if my partner, who is disabled, was to join me at some point. Otherwise, I thought, I’d fly. But only if I was to use Air Miles. I have more than 7100 Air Miles. To fly to Montreal (return) would cost me 4700-5100 Miles depending on the flight. In addition, there is a “taxes & fees” charge of $192 to $225 so let’s say $200. And checked luggage would likely be at least $25 each way so $50. The departure time from Windsor is inconvenient to take a local bus to the airport so that means Uber which today is $48.56 but can vary and with a tip I’ve paid as much as $65. Meanwhile in Montreal I was planning to take a weekend jaunt to Ottawa to see friends. According to Rome to Rio, the bus fare to Ottawa is $30-$65 and train $30-$120 one way so let’s say $50. Meanwhile driving from Windsor to Montreal is $176-$254 so let’s say $200 as I don’t drive a gas guzzler. Add another $150 for the month including the trip to Ottawa as I otherwise don’t use my car much in Montreal. Parking at my rental is $150......So let’s do the math. Should I fly the cost would be $65 (Uber), $200 (airfare), $50 (luggage), $100 (Ottawa trip) for a total of $415 and with local transit, say $450. Driving is $350 (gas, at the high end) plus $150 (parking) for $500 total. Basically a wash! (By the way, bus and train prices Windsor to Montreal are roughly $100 - $300 each way.) Yes, flying time is less. But the most convenient flight leaves 1.50 pm and arrives, with a change, at 8.20 pm – six and a half hours plus Windsor airport travel and wait time of at least two hours – eight and a half hours total. And then the roughly one-hour transit ride in Montreal. So, nine and a half hours. Driving takes about 10 hours. Negligible! Yes, it’s more straining to drive but I avoid the airport hassle and I have the convenience of a car including the weekend jaunt to Ottawa. And I don’t have to worry about how much luggage I take for a month-long stay. I think I’m driving.