Easyjet between CPH and TXL
 

Thinking of visiting Berlin and Copenhagen.

Only direct flights between these two cities are on Easyjet. Google Flights identifies them as U2 planes?

What are they?

I see the Flexi fares get you checked luggage, a carryon and a personal item. They seem to be about 3X the base fares.

I can pay the Flexi fares but I don't know the aircraft so I wonder about overhead bin space.

The direct flights are like 75 minutes. *A and other carriers only have one-stop routes between these cities so the travel time is about 4 hours.

Price and time are tempting but I would be used to *A baggage allowance, especially what I would take on TATL flights.

So is Easyjet viable for such a flier or better to stick with bigger carriers instead of LCCs?

Not true. SK has a daily CPH-TXL flight.

Easyjet mostly flies A320s with a few A319s and even fewer 321s. The bin space is the "standard" one and the only thing one has to kepp in mind is that they're very strict with what they allow for free (dimensions, weight).

It's all explained here
Cabin bags and hold luggage | easyJet

They make you pay the fee for a hold bag and you have to check it in.

Easyjet are fine, just read the rules before you fly.

Also be aware that the *A carriers are far stricter in Europe than they are in the US with carry on bags. There is usually an 8kg limit and it is enforced.

In addition to the SK flight TXL-CPH, mentioned above, there is also a service with Norwegian from Berlin's other airport, Schönefeld (SXF-CPH).

Is it permitted to transport the batteries in your hand luggage and the rest of the electronics in the hold luggage?

It takes about eight hours by train, and trains are suspended and replaced by buses between Copenhagen and Rødby, but it's an option if you have too much luggage to bring on a flight.

Well I got some flack on a flight earlier this week, a LH flight from NAP to MUC.

But otherwise, I had no hassles boarding planes with a carryon full of lithium. Probably over the 8 KG limit by at least 5 KG.

But size wise, it's not taking up a lot of space on the overhead bins of A320s.

There is no weight limit for carry-on bags when flying with easyJet. The maximum size is (generous at) 56 x 45 x 25 cm. If you pay a supplement for an 'upfront' or an 'extra legroom' seat, or if you choose a 'flexi' fare, you are entitled to bring one additional carry-on bag (maximum size 45 x 36 x 20 cm), which also has no weight limit, but must be placed under the seat in front of you (unless, of course, you're in an emergency or bulkhead seat).

I was on this Easyjet flight earlier this month. Super cheap fare.
A320 and A319 with normal overhead bins. It didn't seem that carry-on size policy was strictly enforced.

Just choose a fare that will allow 1 bag in the hold or add 1 checked bag before payment. Easy. No need to pay the expensive flexi fare to get check-in luggage included.

Anything else than a direct flight for this short distance would be crazy. Then rather take the train.

The train seems to be like 6-7 hours when I did a quick search.

The 1-stop routes are like 3.5 hours on LH or other *A.

Anyways, not sure I'll go this time after all, but good intelligence for the future.

Yeah, but once you add travel time to airport, check-in time, waiting for boarding, possible delays etc it will add up to about the same amount of time as by train. By train you go from Copenhagen central to Berlin hbf (city center to city center)

But note that the trains currently aren't running on the Danish side of the border due to construction works. You would end up on a bus to Rødby Færge, the last station before the train ferry between Denmark and Germany, and only get on the train once you get there.