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Seriously, the Best Way to Find Cheap Flights

August 18, 2025

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If you’ve ever tried to fly on a budget, you know the search can feel like a maze: endless tabs open, prices that change mid-scroll, and deals that seem to vanish just as you click. But the best way to find cheap flights—whether you’re chasing sun in Andalusia or a weekend in Berlin—doesn’t have to feel like a full-time job. It’s not about gimmicks. It’s about timing, tools, and a few mindset shifts that genuinely work.

This guide breaks down the strategies that smart travelers use all the time. Whether you’re planning a trip to Spain or just want a better system for booking international flights, you’ll walk away with useful, tested ideas that make travel more accessible—and a bit more fun.

The best way to find cheap flights to Spain with clever tips and real traveler experience
The best way to find cheap flights to Spain with clever tips and real traveler experience

*Note some of the links feature affiliate links. I only recommend items that I 100% love and think you will too!

Why Spain Is the Focus (But This Works Everywhere)

I write a lot about Spain—its cities, its coastlines, its culture—because I live it and know it well. So, while this guide is full of tips that apply to flights across Europe, Asia, or wherever you’re headed, I’m putting the spotlight on Spain because it’s the kind of place that rewards travelers who know how to find the deals. From Barcelona’s art scene to Galicia’s quiet beaches, it’s not just a destination—it’s a canvas. And getting there affordably? That’s where we start.

These strategies work if you’re booking to Seville or Singapore, but I’ll use Spain as our working example throughout. Think of it as both a travel tip sheet and a love letter to a country that always makes the trip worth it.

Start With Flexibility—Spain Gives You Options

Spain is big and well-connected. That’s your first advantage.

Most travelers look up flights to Madrid or Barcelona and stop there. But Spain has more than a dozen international airports—some of which routinely see cheaper fares due to regional carriers, tourism campaigns, or seasonal dips.

Here’s how to work it:

  • Search multiple Spanish cities at once. Try using Google Flights’ “Explore” feature. You might find Granada or Valencia significantly cheaper than Madrid during the same period.
  • Play with arrival and departure combos. Flying into Barcelona and out of Málaga could shave off hundreds.
  • Check nearby hubs. Lisbon, Porto, or even southern France can be surprisingly close (and often cheaper) to parts of Spain.

Spain’s travel infrastructure is built for this kind of freedom. Between high-speed rail (Renfe), cheap domestic flights, and easy car rentals, you’re not tied to one arrival point. That flexibility makes it easier to snag deals and then work backward to build your trip around the fare, not the other way around.

Use Going.com for Flight Alerts That Actually Matter

Let’s talk about Going.com for a second—because it’s not just another travel app with slick branding.

What Going does better than almost anyone is spot legit airfare drops—often mistake fares, flash sales, or odd route combos that you’d never stumble on during a normal search. These alerts go straight to your inbox, and they’re tailored to your home airport.

What makes it a good fit for Spain travelers?

  • European deals are frequent. Spain is a high-traffic destination, so deals pop up regularly.
  • You’ll catch rare routes. Think Boston to Valencia, or Chicago to Bilbao—routes you wouldn’t normally search.
  • Fast booking is key. The email alerts tell you how long a deal is expected to last, so you can pounce.

Here’s the link again if you want to check it out: Going.com. I’ve personally booked three under-$400 roundtrips to Spain over the last few years thanks to it.

Think of Going like the friend who texts you at 11 p.m. with, “Hey, flights to Madrid just dropped to $312—go now.” Except it’s an algorithm doing it while you sleep, without asking for favors or sharing memes. It works in the background, and when something good pops up, you get the ping. That’s modern travel magic.

Know When to Book—And When to Wait

Timing a flight to Spain isn’t about guessing—it’s about recognizing patterns.

  • Book 2–6 months out for international flights.
  • Avoid mid-summer if possible. July and August are peak travel months in Spain. Prices soar, especially to hotspots like Barcelona or Ibiza.
  • Travel in shoulder seasons. Late April to early June, or mid-September to November, often has better deals—and better weather.

Use Google Flights’ price graph feature to track fare trends over a month. Combine that with Going’s alerts, and you’ve got a smart radar.

There’s also value in knowing when not to book. Avoid holidays like Semana Santa (Holy Week), Spanish summer festivals, and U.S. long weekends—when airlines know they’ve got the upper hand. On the flip side, flying on actual holidays (like New Year’s Eve or Christmas Day) can sometimes be surprisingly affordable. Weird, but true.

Try a One-Way Shuffle—Especially With Budget Carriers

Some of the best savings I’ve found to Spain came from breaking the roundtrip mold.

Budget airlines like Norwegian, LEVEL, and Iberia Express often offer super-low one-way fares. And combining those with a return flight from a different airline can lead to a surprisingly cheap itinerary.

  • Book departure and return separately. You might find two low-cost carriers with cheaper options if you treat each leg independently.
  • Look at different departure cities on your return. It might be cheaper to return from Valencia even if you flew into Madrid.
  • Use trains or short-haul flights within Spain. Spain’s Renfe train system is fast and comfortable—perfect for connecting cities.

This strategy gives you the freedom to fly into one city—say, Barcelona—spend a few days exploring, then head south via high-speed rail to Granada or Seville, and fly home from there. Instead of a rigid loop, you get a more dynamic trip and a better deal.

Play With Currencies and Languages

It sounds sneaky—but airlines sometimes price flights differently based on your location or browser settings.

Here’s what to try:

  • Switch your airline site region to Spain or another EU country. Sometimes, fares in euros are cheaper than the USD equivalent.
  • Use a VPN if needed. It’s not mandatory, but occasionally it unlocks regional deals.
  • Double-check taxes and fees. Some international sites show prices without baggage or VAT—so make sure you’re comparing apples to apples.

This isn’t about hacking the system—it’s just understanding how global pricing works. The same seat might cost less when booked from Spain’s version of the airline’s site. Even if you save just €30 or €50, that’s enough for tapas and cava on your first night out.

Know Your Airports and How to Use Them

Madrid and Barcelona are the big ones—but Spain’s secondary airports shouldn’t be overlooked.

  • Madrid-Barajas (MAD): The main hub with the most international flights.
  • Barcelona El Prat (BCN): Often has great deals, especially from major U.S. cities.
  • Málaga (AGP): A sleeper hit for coastal destinations—especially from London, Dublin, and some U.S. hubs.
  • Valencia (VLC), Seville (SVQ), Bilbao (BIO): Smaller, but occasionally catch amazing deals from European cities and can serve as return points.

Regional airports can be key to pulling off a flexible, affordable itinerary. They also tend to have shorter lines, smoother immigration, and better access to charming towns that bigger cities often overshadow. Want to start your trip in a sun-washed plaza instead of a concrete terminal? Land somewhere smaller.

Avoid Peak Airport Times and Fly Light

Booking a cheap flight is one thing. Navigating it is another.

If you’re flying into Spain on a budget carrier or connecting through a major hub:

  • Avoid peak arrival times—early mornings at Madrid and late evenings at Barcelona can mean 90-minute immigration lines.
  • Travel light. Budget airlines are strict. Save yourself the fee and hassle by packing carry-on only. Especially true with Vueling, Ryanair, and easyJet.

This might be the most underrated strategy of all: don’t let cheap become stressful. Know what you’re signing up for with your fare. If you’re flying Ryanair, don’t expect champagne service—but do expect to pay for a window seat or that extra bag. Plan ahead, travel light, and skip the line.

Book Your Flight First, Then Use My Custom Map to Find Your Stay

Here’s a strategy shift that saves more than you’d expect: lock in your flight before booking any hotels. Why? Because flights are usually the most volatile cost—especially to Spain, where prices can change daily depending on the season, departure city, or even the time of day you book.

By booking flights first, you give yourself a fixed anchor. Then, using that arrival and departure info, you can explore hotel or apartment options based on location, length of stay, and budget flexibility. It also gives you room to explore smaller towns or under-the-radar neighborhoods you might have missed if you locked into lodging too soon.

To make that next step easier, I created a custom Spain stays map that highlights my favorite cities, neighborhoods, and booking zones—from beachy corners in Cádiz to boutique hotel clusters in the heart of Madrid.

📍 Use the map below to plan your overnight stops once your flights are booked.

It’s interactive, updated, and made with the kind of on-the-ground know-how that comes from actually sleeping in these spots—not just bookmarking them.

Final Thoughts: Finding Cheap Flights to Spain Isn’t Magic—It’s Strategy

You don’t need a dozen apps, a PhD in airline pricing, or a backpack full of loyalty points. The best way to find cheap flights to Spain is about combining common sense with a few clever tools—and being just curious enough to check one more city, or wait one more week.

If you’re serious about scoring deals, sign up for Going.com. It’ll do the hard part while you daydream about paella and plazas.

After all, Spain isn’t just a destination—it’s a mood, a rhythm, a long lunch in the sun. And getting there doesn’t have to drain your travel budget.

So go ahead. Book the trip. Let the fare lead the way. Your next siesta is just one smart search away.

FAQs: The Best Way to Find Cheap Flights to Spain

How do you find the lowest flight prices?

To find the lowest flight prices, use flight deal alert services like Going.com, compare fares on Google Flights, and be flexible with your travel dates and airports. Booking in incognito mode and checking nearby departure cities can also reveal hidden savings.

How can I get 50% off on a flight?

You can get 50% off on a flight by booking flash sales, catching mistake fares, and traveling during off-peak seasons. Sign up for alert tools like Going.com and be ready to book quickly when a low fare appears.

How do you get flight tickets at the cheapest rate?

To get the cheapest flight tickets, book early (1–3 months for domestic, 3–6 months for international), fly midweek, avoid holidays, and travel light. Use price comparison tools and mix airlines or airports to lower your total cost.

What is your most effective method for getting a cheap flight?

The most effective method is combining airfare alerts with flexible travel plans. Sign up for Going.com, check flexible date calendars, and book as soon as you see a great price—especially for international travel.

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Disclaimer: The content on Must See Spain is provided “as is” with no guarantees of accuracy, reliability, or suitability. Travel involves risks, including injury, illness, theft, or unexpected events. Must See Spain is not responsible for any issues encountered during your travels. Always verify information independently and check local sources before making plans.

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