[WildUtah]

Canada, Ireland, and Abu Dhabi do US immigration at their own airports before you leave. I've never heard of any other pair of countries with any similar arrangements.

Indeed Canada, Ireland, and Abu Dhabi wait until you arrive there from the USA to do their own immigration so it only goes one way.

[ubernostrum]

US preclearance exists in certain airports in Canada, Ireland, Bermuda, the Bahamas, Aruba, and the UAE.

The US-Canada agreement is the oldest one, largely due to the amount of cross-border air travel, and Canada has the right under the agreement to operate preclearance stations for the Canadian border inside US airports, but has never chosen to do so.

[taway_1212]

I've learned that, when coming to the US from Europe, if I can't get a direct flight, I prefer my change to be in Canada. This way, I can pass immigration on the Canadian airport, while I'm idling between flights anyway. Also, the one time I did it, there was almost no queue (in Toronto).

[zx2c4]

France and UK when traveling by train.

[happosai]

Finland to Russia on train, the Russian Border security checks you while the train is still in Finland, speeding 200km/h towards Russia. And vice versa when going in the other direction.

Saves a lot of time and hassle.

[mino]

Same when travelling by ferry across the Channel.

[manarth]

And ferry.

[CaptainZapp]

Not sure if Abu Dhabi still does it. It has, however, been an unmitigated disaster:

http://onemileatatime.boardingarea.com/2014/09/07/etihads-ab...

[mrspeaker]

In case anyone is looking for some alt-anecdata on that: I was surprised to see that article, because I've been through that facility 4 times and every time has been excellent and fast (I'd even say faster than my experience in Dublin, though that was fine too). I much prefer it than having to do it after landing after 30 hours of flying... ymmv i guess

[lewiseason]

Etihad are still advertising it on their flights. The entire airport is a bit of a disaster to be honest.

[jacobush]

Sweden just got a deal for the same arrangement with the US.

[superpope99]

That's crazy dangerous considering the recent terrorist incidents

[dingaling]

And Manchester will be the first UK airport with preclearance.

[dalore]

Driving the Channel tunnel between UK and France, they each have "immigration" on the opposite sides. You drive through the French passport control before you get into the tunnel to leave the UK.

[WildUtah]

Driving????

[antman]

Israel in Greece

[borispavlovic]

And in Geneva airport

[crucialfelix]

Exiting Germany to fly to UK we do get checked. UK does not do an exit check when flying back the other way.

[seanmcdirmid]

Ya, sure it's one way. I'm not sure how my comment was interpreted as meaning anything else.