How to Find Cheap Flights in Europe (Exact Method I Use)

A few years ago I booked a flight from Amsterdam to Lisbon for €11. Not €11 each way — €11 total, including taxes. I screenshot it and sent it to three people immediately because I genuinely didn’t believe it was real until the confirmation email arrived.

That’s not a flex. That’s just what’s possible in Europe when you know how the system works and you’re willing to be slightly flexible about when and where you fly. The continent has one of the most competitive short-haul aviation markets in the world, and that competition — mostly between Ryanair, easyJet, Wizz Air, and Vueling — pushes prices to levels that still feel illegal to me sometimes.

But here’s the thing: most people are still overpaying. Not because cheap flights don’t exist, but because they’re searching wrong. They go to Google Flights or Skyscanner, type in their dates, look at the results, grimace, and book. That’s it. No flexibility, no strategy, no understanding of how airline pricing actually works.

I’ve been doing this a different way for years. It’s not complicated. It just requires shifting how you think about the search.

First, Understand Why Prices Move the Way They Do

Before the tactics, a quick bit of context that actually changes how you search.

Airline pricing is dynamic, which means the same seat can cost €19 on a Tuesday and €140 the following Friday. The algorithm adjusts based on demand, how far out you’re booking, how many seats are left on the plane, and a hundred other variables nobody outside the airline fully understands. What matters practically is this: prices are not fixed, they’re not always predictable, and they reward people who are either very early or very flexible.

The sweet spot for European budget flights is generally six to ten weeks out. Earlier than that and you’re sometimes paying a premium because airlines know they have time to sell. Closer than two weeks and prices spike unless the flight is genuinely struggling to fill. Within that six-to-ten week window, Tuesday and Wednesday departures are usually cheapest. Fridays and Sundays are the most expensive days to fly, almost universally.

I don’t always fly on a Wednesday. But knowing this shapes when I search and when I’m willing to adjust plans slightly to save real money.

The Actual Method I Use

Step One: Start With Google Flights, Not a Booking Site

Google Flights is a search tool, not a booking site. That distinction matters. I use it to understand the landscape of prices — to find out which routes are cheap, which dates have availability, and which airports I should be considering. I don’t book through it.

The feature I use most is the price calendar view. If you put in your origin and destination but leave the dates flexible, Google Flights shows you a calendar where each date is colour-coded by price. Cheap dates are green. Expensive dates go orange and red. For a trip I’m considering, this is always my first move — not picking a date and searching, but opening the calendar and letting the calendar tell me which dates are worth exploring.

The other feature worth knowing: the “Explore” map. If you’re open about where you’re going — which, more on that in a moment — you can enter just your departure city and see a map of Europe with approximate prices to different destinations. This is how I’ve ended up in cities I wouldn’t have thought to search for. I’ve had great weekends in Bratislava, Porto, and Tallinn partly because the flight was €25 and curiosity did the rest.

Step Two: Check the Airline Directly

Once Google Flights has shown me a good option, I go directly to the airline’s website to book. Almost always. The reason is straightforward: budget airlines in Europe often have their cheapest fares available only on their own sites. They pay commission to comparison sites and sometimes offset that by pricing slightly higher there. Not always, and not by huge amounts, but often enough that checking directly is worth the 90 seconds it takes.

Ryanair especially pushes people towards their own site — their prices on third-party platforms can include a markup that disappears when you book direct. Same with Wizz Air. easyJet is a bit more consistent across platforms, but I still check direct as a habit.

One thing I always do on budget airline sites: go through the booking process all the way to the payment page before committing, because the base fare is almost never the final price. Seat selection, checked luggage, priority boarding — they add these step by step and if you’re not paying attention, a €25 flight becomes €65. I’ll come back to this.

Step Three: Set Price Alerts and Wait (When You Can)

If my travel dates are flexible and I’m not in a hurry to confirm, I set a Google Flights price alert for the route I want. This sends me an email when prices drop significantly. I’ve used this to catch sales that I’d never have spotted on my own — Ryanair and Wizz Air in particular run flash sales that last 24–48 hours and then disappear.

The catch is obvious: this only works if you’re not locked into specific dates and you’re comfortable with the trip being unplanned until the alert fires. For long weekends and solo travel, I do this a lot. For trips with other people, hotels already booked, or fixed time off work, it’s less useful.

Skyscanner has a similar alert feature and it’s worth setting up on both platforms for important routes, since they don’t always catch the same sales.

The Flexible Destination Approach (My Favourite Method)

This is the thing that has probably saved me more money than anything else, and it requires a small mindset shift.

Instead of deciding where I want to go and then finding cheap flights, I sometimes decide I want to travel — roughly when, roughly for how long — and then let prices tell me where. It sounds like it would produce random, unsatisfying trips. In practice, it’s produced some of my best ones.

Here’s how it works. I open the Skyscanner “Everywhere” search: departure city set to Amsterdam (or wherever I’m based), destination set to “Everywhere,” dates set to a weekend or week I know I’m free. The results come back sorted by price. I scroll through and look for something under €30 each way to somewhere I’ve never been or want to go back to.

Wizz Air’s route network makes this particularly productive. They fly from Amsterdam to a huge number of Eastern and Central European cities — Bucharest, Sofia, Warsaw, Cluj, Vilnius, Lviv — and the prices are often startlingly low. These aren’t routes with much competition so you might wonder why, but Wizz Air seems to use low prices as a way of building demand on newer routes, which is fine by me.

The version of me that always had a destination in mind first missed a lot of these. The version that starts with price has a much better collection of stamps in the passport.

Budget Airline Traps and How to Avoid Them

I’ve paid for lessons here, so you don’t have to.

The luggage trap. Every budget airline in Europe operates on a base fare that includes only a small personal item — typically something that fits under the seat in front. A cabin bag that goes in the overhead locker is an extra. A checked suitcase is considerably more. If you’re comparing a €29 Ryanair flight to a €79 KLM flight, you need to price in your luggage before you decide the budget airline is cheaper. With one checked bag on Ryanair, that €29 flight is often €65–80, which narrows the gap significantly.

I travel with a 40-litre backpack specifically so I can almost always avoid the overhead bin fee and fit within the personal item allowance. It took some adjustment but it’s saved me a genuinely embarrassing amount of money over the years.

The airport bait-and-switch. Budget airlines are famous for this and it still catches people out. “Frankfurt” might actually mean Frankfurt Hahn, which is 120km from Frankfurt. “Paris” might be Beauvais, which is 85km from the city. “Brussels” on Ryanair is often Charleroi, 60km south. Always check which airport you’re actually flying into, and then Google the transfer to wherever you’re actually staying. That €30 flight to “Milan” that lands at Bergamo Orio al Serio is fine — BGY is about an hour from central Milan on the Orio Shuttle for around €5–8 — but it’s something you need to account for.

The seat selection upsell. Budget airlines will tell you that if you don’t pay for a seat, you’ll be randomly assigned one and might be separated from your travel companions. This is technically true. What they don’t say is that if you’re travelling alone, this doesn’t matter at all. And if you’re travelling as a couple or small group, you can often sort this out at the gate by simply asking a fellow passenger to swap. I’ve never paid for seat selection on a short-haul European flight and I’ve never had a genuinely bad outcome.

Dynamic pricing on the booking page. If you search for a flight, close the tab, and come back later, the price will sometimes have gone up. This is partly because the airline tracks your search interest and partly because seats genuinely sell while you deliberate. When I find a fare I want, I book it within the same session. Waiting to think about it is how you lose the €29 fare and pay €59.

A Few Routes That Are Almost Always Cheap

Without wanting to be too specific — prices change constantly and what’s cheap today might not be cheap next month — there are some route corridors in Europe where competition keeps fares persistently low.

Amsterdam to London (Stansted or Gatwick) is one of the most competed routes in Europe. You can almost always find something under €50 return if you’re not flying on Friday or Sunday. Amsterdam to Barcelona, Lisbon, Rome, and Dublin similarly tend to offer good value because multiple carriers compete.

Eastern Europe is almost always cheap from Western European hubs. Warsaw, Budapest, Prague, Bucharest, Riga — these cities are connected by budget carriers at prices that make weekend trips financially trivial. €40 return to Budapest isn’t unusual. €25 to Warsaw happens more than you’d expect.

The Mediterranean in shoulder season — April to May, September to October — offers great fares because airlines are filling seats that would otherwise go empty before and after peak summer. I’ve flown to Palermo, Bari, and Catania in October for under €30 each way. Same flights in August would be triple that.

What I’d Do Differently

Honestly? I’d have started being flexible about destinations much earlier. I spent years searching only for specific cities I’d already decided I wanted to visit, and I left a lot of cheap flights — and presumably good trips — on the table.

I’d also have learned earlier to treat the base fare as a starting point rather than the price. The first few times I booked budget airline flights, I got to the airport expecting to pay what I’d paid online and then watched the total climb at bag drop. Now I calculate the full cost before I click anything.

And I’d be more willing to fly at inconvenient hours. The 6am Ryanair departure that requires a 4am taxi is genuinely unpleasant. But it’s often €40 cheaper than the 10am flight. Some trips are worth the 4am alarm. Some aren’t. Knowing which is which is its own kind of travel wisdom.

FAQ

What is the cheapest way to find flights within Europe? The most reliable method is combining Google Flights’ flexible date search with direct booking on the airline’s own website. Set price alerts for routes you’re watching, fly mid-week when possible, and always factor in baggage fees before comparing budget fares to full-service carriers.

How far in advance should I book European flights to get the best price? For most routes, six to ten weeks out tends to offer the best balance of availability and price. Booking earlier than that isn’t always cheaper, and within two weeks of departure, prices typically spike unless a flight is struggling to fill.

Are budget airlines like Ryanair and Wizz Air actually cheaper than traditional carriers? Often yes, especially on the base fare — but only if you travel light. Once you add checked baggage, the gap closes significantly. For carry-on-only travellers, budget carriers offer genuinely better value on short European routes.

Does using incognito mode when searching for flights actually help? The evidence on this is mixed. Dynamic pricing is real, but it’s driven more by seat availability and overall demand than by individual search tracking. I use incognito out of habit but I wouldn’t call it a guaranteed money-saver. Booking promptly when you find a good fare matters more.

Which days are cheapest to fly in Europe? Tuesdays and Wednesdays consistently come out cheapest on most routes. Fridays and Sundays — predictably, when business travellers and holidaymakers all want to move — are the most expensive. Even shifting a departure by one day can save €20–40 on popular routes.

The €11 Lisbon flight I mentioned at the start — I’ve been asked if that kind of thing still exists. It does, occasionally. But even if the floor has moved up a bit since the early days of European low-cost aviation, the fundamentals haven’t changed. Cheap flights across Europe exist. They require flexibility, a bit of patience, and knowing where to look.

The search itself takes maybe twenty minutes once you know what you’re doing. The hard part, if there is one, is being willing to let price shape the destination sometimes instead of the other way around. For me, that turned out not to be a compromise at all.