Baku is about 550 kilometres from Tbilisi by road, and on a map it looks like a long but ordinary day. The map is out of date. For travellers heading east, the road has been closed at the border for years, and a good deal of what is still written about this route describes a bus that cannot carry you across.
This is the current position as we understand it at the time of writing, with the sources, because it is the kind of fact that changes by decree.
The crossing that exists, and the rule that closes it
The road crossing is Red Bridge, Tsiteli Khidi in Georgian and Qırmızı Körpü in Azerbaijani. The S4 runs from Tbilisi through Rustavi to the border over 57 kilometres, about an hour on good road. Beyond it, roughly 490 kilometres through Ganja to Baku.
The road is fine. The border is the problem. Azerbaijan closed its land borders to arriving passengers in March 2020, and the closure has been renewed every few months since, long after the original pandemic rationale had lapsed elsewhere. Successive extensions have been reported, and in September 2026 the special quarantine regime that carries the closure was extended again, to 2 January 2027. Cargo has continued to move. Tourists entering by car, bus or on foot have not.
What still works
Flying. The practical answer for almost everyone. The flight between the two capitals is short, frequent, and turns a two-day overland problem into a morning. From our side, that makes this an airport run rather than a border run, and what a Tbilisi airport transfer actually costs is the relevant number.
The train, with a caveat. Passenger rail between the two countries was reinstated in 2026, but it has been described as a limited exception rather than a reopening. Before relying on it, confirm that it carries your nationality in your direction on your date. Do not assume that a ticket on sale means entry is permitted.
Coming the other way. Reports have indicated that leaving Azerbaijan overland into Georgia has been treated differently from entering it. If you are travelling from Baku to Tbilisi and an overland exit is confirmed for your date, a Georgian car on this side of the crossing is a reasonable way to finish the trip. It is not a standing route of ours, so ask first, as the corporate chauffeur page sets out for any crossing, and the answer comes back in writing.
How to check before you plan
The closure is renewed by government decision, usually for three to six months at a time, and announcements of an imminent reopening have circulated for several years without one arriving. Treat any plan that depends on the land border as provisional until the current decision is published.
Check three things, in this order. Whether the land border is open to arriving passengers on your date. Whether your nationality needs a visa, which for many passports means the electronic visa applied for in advance. And, if the train is the plan, whether it is actually carrying foreign passengers into Azerbaijan, not just running.
Where this leaves a Georgian itinerary
For most trips the answer is a flight, and the useful planning question becomes which Georgian airport the trip should use at each end.
For a longer regional trip, Armenia is the overland neighbour that is open. The run from Tbilisi to Yerevan is roughly a five-hour day with a straightforward crossing at Sadakhlo, and our road manual for the open crossings covers what each crossing involves. A trip that pairs Georgia with Armenia by road and adds Baku by air is a better trip than one that waits on a decree.
Why we wrote this at all
Because it is a common question, and the honest answer is not one we can sell. We would rather a guest learn it here than at Rustavi with a car booked and a hotel in Baku paid for.
A crossing of any kind extends the standard booking brief with nationality and passport details. If Baku is on the itinerary, send the dates and passport countries to booking@soitblack.com, and the answer comes back in writing, including plainly when it is to fly.