If you're a Marlboro smoker in UK
I know smoking is bad, but a lot of us can't kick the habit so here it goes:
A pack of Marlboro costs £17-20 in UK
A pack of Marlboro costs around 5 euros(~£4.5) in spain
Ryanair flights from UK to Spain are average £50-150£ pounds both ways (depends on the time of year)
You're allowed to bring back 200 cigarettes, i.e 10x packs
10 pack in spain would cost you £45 pounds. (what used to be an extortionate rate you'd get in WHS 15 years ago)
10 pack in UK now would cost you £170-£200
If you manage to snag a cheap return flight for £50, you get your cigarettes, get to spend a day free in Spain and you've saved £75-£105
You get a free flight to Spain if your plane tickets cost you below £125
If your flight cost you between £125-170, you're getting a 'discount' on the flight from 0% to 73% (if you buy cigarettes in spain ofc), or you can think about it as a discount on the cigarettes either or)
it's only when flight costs you £170 or more that you start paying a full price for the cigarettes again