Airline Miles & Points: The Beginner's Complete Guide to Flying Free

The airline miles system is, objectively, one of the most generous consumer loyalty programs ever invented. It enables ordinary people to fly business class across the world for the equivalent of €50–€100 in annual credit card fee, once you understand the system. And yet most miles expire unused. Here's how to change that.

What Are Airline Miles, Actually?

Airline miles (also called "points" or "avios" depending on the program) are a currency created and owned by airlines. You earn them by flying, using co-branded credit cards, shopping at partner retailers, and staying at hotels. You redeem them for flights, upgrades, and occasionally other products.

The key insight: miles are worth different amounts depending on how you redeem them. A mile used for a business class long-haul ticket might be worth €0.02–0.05. The same mile used for a magazine subscription in the rewards store might be worth €0.001. Redemption strategy is everything.

The Three Ways to Earn Miles

1. Flying

The most obvious but slowest method. Miles earned per flight depend on: ticket class, distance flown, and airline. Business class earns 100–200% of actual miles flown. Heavily discounted economy might earn only 25–50%.

2. Co-Branded Credit Cards

This is where miles accumulate fastest. Examples:

British Airways Amex: 3 Avios per €1 on BA purchases, 1.5 Avios per €1 elsewhere
Air France/KLM Amex: 3 Flying Blue miles per €1 on Air France/KLM, 1.5 elsewhere
Many cards offer 10,000–50,000 mile sign-up bonuses after a minimum spend

Strategy: put all regular spending (groceries, fuel, utilities) on the card, pay in full each month. Earn miles on spending you'd do anyway.

3. Shopping and Hotel Partners

Every major airline has shopping portals and hotel partnerships. Booking hotels through airline shopping portals earns miles at €1 = 1–3 miles. Over years of hotel stays, this adds up meaningfully.

The Best Programs for European Travelers

British Airways Executive Club (Avios)

Best for: short-haul redemptions (London to Madrid: 9,000 Avios + taxes — often excellent value). Avios are shared with Iberia, Qatar, and Finnair. The "distance-based" award chart rewards shorter flights.

Air France/KLM Flying Blue

Best for: intercontinental redemptions, especially from European cities to the Americas and Africa. Monthly "Promo Rewards" sales can cut the cost of premium redemptions by 25–50%.

Turkish Airlines Miles&Smiles

Best for: partner redemptions. Turkish Airlines is a Star Alliance member, and Miles&Smiles has some of the cheapest redemption rates for Star Alliance metal (Lufthansa, United, ANA). A business class from Frankfurt to Tokyo: ~45,000 miles (versus 65,000+ on other programs).

The Best Redemption Strategies

Long-Haul Business Class

This is where miles deliver peak value. A business class ticket from Paris to Singapore might cost €2,500–€5,000. The same ticket using Flying Blue miles might cost 80,000–100,000 miles — earned in 18 months of normal credit card spending. Value per mile: €0.025–0.05.

Short-Haul Point-to-Point

BA Avios redemptions on short European routes are often extraordinary value: London to Amsterdam can be 4,500 Avios + €20 taxes — versus a €120 paid fare. Value per Avios: €0.022.

Partner Redemptions

Some programs allow you to book flights on partner airlines at better rates than those airlines' own programs charge. Turkish Airlines Miles&Smiles on Lufthansa business class is the most discussed example. Research the "sweet spots" for your specific destination.

Three Mistakes to Avoid

Letting miles expire: Most programs expire miles after 12–36 months of inactivity. A small transaction (buying €1 of partner points, or making a small card purchase) typically resets the clock.
Redeeming for merchandise: The per-mile value for products in the rewards catalog is usually 5–10x worse than flight redemptions. Never do this.
Paying interest to earn miles: Credit card miles programs only make financial sense if you pay the full balance monthly. Carrying a balance at 20% APR to earn 1 mile per euro is spectacularly bad math.

Getting Started

Pick one program that matches your home airport and the destinations you fly most. Join for free. Get the entry-level co-branded card. Put your regular spending on it. Pay it in full monthly. Check the balance annually. You'll be surprised how quickly redemptions become possible.