Start with the calendar, not the destination
You don’t pick where you’re going first. That’s the mistake everyone makes. You open the search I use, set Prague as the origin, and let the price calendar do the talking for the next three months. February is dead cheap out of Václav Havel Airport Prague (PRG) because nobody wants to fly anywhere in February, which means you can get to Rome for forty euros return if you’re willing to sit in a cold city and eat pasta. May is the trap: everyone’s going somewhere, and the algorithms know it.
Instead of “where should I go,” ask “what’s cheap this weekend.” Last month I found Lisbon for 60 euros round trip on a Wednesday departure, which is absurd for a flight that takes a bit under three hours, and I only found it because I checked a Tuesday I had no plans for — Kupi.com — flights from Prague turned up that deal, and I didn’t need another city break, but at that price I took it. That same week, the Friday departure was running 140 euros, just because the weekend crowd had woken up.
The baggage math comes before the fare
Here’s where people lose their minds. Ryanair will show you a nine-euro fare and you’ll book it before realising the carry-on allowance is a personal item that fits exactly nothing. I weigh my backpack at the hostel before I even open the booking page, because the 10 kg limit is a hard limit and the gate agent’s scale doesn’t care that you’re a nice person. The absolute cheapest fares out of Prague are always the ones with zero hold luggage, so the real question is whether you can live out of a small bag for four days.
- Check the personal item dimensions, not just the weight
- Weigh your bag at the place you’re staying, not at the airport
- Pay for the bigger carry-on at booking, it’s cheaper than at the gate
- Look at what the return flight costs with the same bag, not just the outbound
- Factor in the airport bus from the city centre, it’s not free
That last one gets everyone. Getting to PRG costs about 40 crowns on the bus, and if you’re flying Wizz Air you’re probably flying out of the main terminal anyway, but the total transport cost should be part of the fare in your head. A 15-euro flight with a 5-euro bus ride is worse than a 19-euro flight with a 2-euro bus ride, even though the headline number looks better.
The booking moment is its own ritual
I book on a Tuesday night, never a Friday, and always in an incognito window because I don’t trust the cookies to not creep the price up when they see me coming back. The site I book through is the one that lets me see the calendar across the whole month in one screen, which is the thing that actually saves me money. Before I click, I check what the flight costs on the airline’s own site, because sometimes the aggregator adds a booking fee that wipes out the savings. It takes four minutes and it has saved me real money more than once.
For the routings nobody advertises, the connecting flights that bounce through a second city, you have to be patient and a bit forgiving with your schedule. A Prague to Barcelona direct flight is always going to cost more than a Prague to Milan to Barcelona routing where the layover is three hours and you’re tired when you land. I’ve done the Milan thing twice where the second leg was delayed, and both times I was glad I hadn’t paid for the nonstop.
One last thing: when you find a price that looks good, book it that night. The fares out of PRG don’t sit still, and the one you saw at noon is often thirty euros higher by midnight, especially in summer. I’ve watched a fare climb while I deliberated, and it never comes back down. The search I use has a price alert feature I set for routes I want, but honestly the calendar method catches more deals than the alerts ever do. If you want the full month view in one go, the site I book through is the one I default to now, because it shows me the whole grid without making me click through each day like a fool.
The whole system is really just discipline. You check the calendar, you do the baggage math, and you commit fast. When the winter prices drop and you’re sitting on a cheap flight somewhere sunny, the discipline pays for itself in the meal you can afford that the full-fare passenger next to you can’t. If you’re just starting to look, check it out and see what the calendar shows for the next few months before you commit to anything.
