Here's a question nobody at BART or SamTrans is asking: what if the best way to get to San Francisco International Airport is on two wheels and zero tax dollars?

The ride from the city to SFO clocks in at roughly 15 miles, cuts through three cities, and — if you do it right — includes a stop at a greasy spoon diner that alone justifies the trip. It's not a commute most people would consider, but it's one that reveals something important about Bay Area transportation: sometimes the infrastructure we already have works just fine, if you're willing to use it.

Let's be honest about what this ride really is. It's flat enough to be manageable, scenic in parts, sketchy in others, and absolutely doable for anyone with moderate fitness and a bike that isn't falling apart. You're rolling through the Mission or SOMA, down through Daly City and South San Francisco, past industrial stretches and taco shops, before landing at the airport's doorstep. Total cost: zero dollars, unless you count the diner stop (and you should).

Now compare that to the alternatives. BART will run you close to $10 each way and treat you to the sensory experience of a moving petri dish. A rideshare from downtown can easily hit $40-50. A taxi? Well, as one SF resident put it, "Every time you give a taxi driver a chance, you're going to learn why Uber is a multi-billion dollar company."

The bigger point here isn't that everyone should start pedaling to their terminal. It's that the Bay Area has spent decades and billions on transit solutions that still leave people frustrated, late, and broke — while a relatively simple bike corridor to the region's major airport gets almost no attention or investment. A few protected lanes, some better signage, maybe a secure bike parking setup at SFO, and suddenly you've got a viable option for thousands of travelers carrying a backpack instead of a checked bag.

Government loves the grand gesture — the billion-dollar rail extension, the flashy new bus rapid transit line that's always five years away. Meanwhile, the humble bicycle sits there, asking for almost nothing and delivering real results.

Sometimes the cheapest solution is the best one. Funny how that works.