plus 45 minutes to 1 hour to get to the airport, 2 hour advance check-in, 45 to minutes to 1 hour to get from airport to Paris. Totals at least 5 1/2 hours of day time as opposed to an overnight train. Make sure you know all extra costs and fees (getting to/from airports, any taxes, baggage fees, ticketing fees. Flight is probably still the best deal, but it may not be that much better. 40 euros seems like a lot for a berth, 25 is the norm. My experience is with Eurail and there may be additional charges with an interrail pass???

Your itinerary seems pretty ambitious for 22 days. You’ll be spending a lot of your time on trains and buses to/from the airport, in airports, on airplanes, betting to/from the train station, in train stations, on trains.

The problem is that to get from irun (between france and spain) to lisbon (home) we have to catch a sud expresso, and is really stupid, but we have to pay more for the bed because we are portuguese..

Since I wrote the first time we changed the plans a little bit, ‘cause Ireland became a big problem. And we put everything by train. So, this is the new plan:

lisbon > paris > salzburg (2 nights) > vienna (1 night) > Prague (3 nights) > oswiecim (auschwitz) > warsaw (2 nights) > copenhagen (3 nights) > amsterdan (1 night) > paris > lisbon

we have to pass through paris to the the night train to lisbon. we werent thinking about stoping in amsterdan, but we cant make copenhagen > paris all at once, its too much. so we need to stop somewhere.. in our research we did this itinerary in 21 days and almost all travels by night.

What you think? Is it doable?

I would not like to take so many overnight trains. My rule of thumb is an average of 1 per week with no more than 2 in any 5 day period. You don’t always get a good night’s sleep and I think it’s disorienting to arrive in a strange city at morning rush hour. Sometimes all you want is a shower and a nap and you can’t check into hotel/hostel until late afternoon. I use the same rule of thumb for flights as I find the hurry-up-and-wait nature tiring and flying in general boring.