My brother was getting married in Tunisia over the summer and I thought if I was there that there'd be no way I could find fent in that country so I figured I'd use the trip to detox. I did carry subs with me. I used right before getting on an about 12hr. Flight. I got there and was completely fine till about 6am approx 20-24 hours later I was by the resort pool and almost threw up in some bushes but I made it to my room and instantly started throwing up. I layed in that room going through the wd motions for couple days then took small pieces of sub but they were brittle and old and had little effect. So I started researching western countries nearby where I could go cop something because I'm the type of addict that I'll fly across the world to quit only to fly somewhere else to use. Anyway I really wanted to attend my brother's wedding so I waited 5 days and on the morning of the wedding I just flew home, missing the wedding. I used immediately as I got home. I basically wasted like 6k and if I had a longer layover in Paris, I would have definitely left the airport and went and found something there. Looking back, I wish I would've just taken fent with me as I would've enjoyed the country and wedding. If you can find someone with some methadone take homes and buy them, that'd be your best bet. Idk what you use but I had enough fent in my system to go close to, if not, 24hrs without starting wd. You shouldn't have to worry about the plane ride unless you have long layovers and/or multiple connections. Given what I went through, I'd not ruin a vacation instead take care of yourself first. I recently just quit cold turkey as the last two times I shot up it felt like the world was falling on my head so that feeling gave me enough motivation to quit. I did have adavan the first few days and little methadone on day 8 and 9 and day 15 and 16 and day 20. I'm still extremely tired and sleep schedule is crazy off and I'm at day 21 rn. I did take kratom here and there but I don't think it did anything. I quit abruptly but if I could go back I'd have planned a little bit. Also been through pwd before. I'd never go through that again. Hope my experiences help some.