The long-awaited BART extension to Milpitas and North San Jose is supposedly just around the corner from opening up to commuters.

Whether you're a Silicon Valley commuter, or maybe just looking for another way to get closer to the San Jose International Airport, here's what we know so far about the two new BART stations.

When will the Milpitas and Berryessa stations open?

Ah, the perennial question when it comes to any and all BART projects. Currently, both stations are slated to open in "late 2019," according to VTA spokesperson Bernice Alaniz. Despite past reports indicating the date had been set to November 2019, Alaniz insists no firm date has been set.

But it's important to note that even this vaguer date is tentative, pending a whole host of complicated issues. Read more about that from The Chronicle.

By the way, when construction on the extension began back in April 2012, transit leaders thought it would open for service in 2016. A lot has changed since then.

ALSO: This is what BART would look like if we built the system as designed in 1956

How much will it cost to get there?

Fares to the two new stations will work like the rest of the transit system, calculated based on the length of the trip (not a flat rate). A trip from Embarcadero station in San Francisco to either Milpitas or Berryessa would cost $7.75 one-way and $15.50 roundtrip, reported the San Jose Mercury News.

Where are the two new stations?

The new stations are a 10-mile extension of the Fremont/Warm Springs line down the East Bay. The Milpitas Station is near the Great Mall, at Montague Expressway and Capitol Avenue. The Berryessa/North San Jose station is just off I-680, near Berryessa Road and North Capitol Avenue.

The Milpitas Station will have VTA Light Rail connections, while Berryessa/North San Jose will have VTA bus connections.

Is this the new end of the line?

For now, yes. But BART is hoping to extend even further into San Jose with the second phase of the Silicon Valley extension. Phase II includes six more miles of track and four more stations, at Alum Rock/28th Street, Downtown San Jose, Diridon and Santa Clara.

But if you've learned anything by now, it's to not hold your breath. There's a lot of tunneling to be done and funding to be raised, but right now the target date of opening the next round of stations is 2026.

Alix Martichoux is an SFGate supervising producer. Read her latest stories and send her news tips at alix.martichoux@sfgate.com.