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Updated: 28 May 2026

Air France-KLM Flying Blue: The Smartest Routes from Brussels

53,000 miles. That's, on a good day, the price for a round-trip to Bangkok in Economy via Air France or KLM. In euros, you'd easily pay €700 to €900 for the same ticket. The maths is simple: if you can earn those miles without spending a fortune on flights, that's one less problem. It only gets interesting when you know how to accumulate those miles the fastest, and above all: on which Air France-KLM Flying Blue routes from Brussels you get the most value per mile.

Because that's where the difference lies. Not every Flying Blue destination is equally smart. Some award tickets are ridiculously expensive in miles compared to the cash price. Others are outright bargains. And as a Belgian traveller, you're in a unique position: Brussels Airport isn't an Air France or KLM hub, but it sits right between Paris-CDG and Amsterdam-Schiphol. That makes the puzzle more complex, but also more interesting.

Over the past few years, I've made quite a few Flying Blue bookings, to Florida, Thailand, and London alike. Not everything went smoothly, to be honest. But the lessons I took from them are precisely what makes this article so practical.

How does Flying Blue work for Belgian travellers departing from Brussels?

Flying Blue is the joint loyalty programme of Air France and KLM, plus their subsidiaries Transavia and Kenya Airways. As a Belgian traveller, it's one of the most logical programmes to earn in. Not because Air France or KLM flies extensively from Brussels (that's Brussels Airlines), but because the two main hubs, Paris-CDG and Amsterdam-Schiphol, are barely an hour's flight away.

The connections from Brussels Airport to CDG and Schiphol are frequent. Multiple flights per day. That means with one short hop, you have access to the entire SkyTeam network. Bangkok, Ho Chi Minh City, Miami, Sydney: it's all within reach. And here's the crucial point: Flying Blue uses dynamic pricing for award tickets. There's no longer a fixed table with "zone A costs X miles". The price fluctuates, just like cash tickets, based on demand, season, and booking moment.

That sounds disadvantageous, but it also creates opportunities. On less popular dates or outside school holidays, miles prices sometimes dip well below average. I've previously seen a round-trip to Bangkok for 53,000 miles in January, while the same route in July went towards 80,000 miles. Flexibility is therefore your best friend.

What many Belgians don't know: you can also book SkyTeam partner flights with Flying Blue miles. Vietnam Airlines to Hanoi, Korean Air to Seoul, Delta to the US. Availability varies by partner, but it significantly expands your options. Do note, however, that partner awards are often slightly more expensive in miles than flights on Air France or KLM themselves.

The smartest Flying Blue routes from Brussels: where's the value?

Not all routes are created equal in Flying Blue. The value per mile varies enormously, depending on destination, travel class, and booking moment. At TravelLux.be, I track which routes deliver the best deals, and a few patterns keep recurring.

The big lesson: Flying Blue miles are most valuable on long-haul routes, especially in Business Class. Anyone heading to Thailand, Vietnam, or the US will find the best deals there. Short European hops? Better to pay cash and save your miles for the big trips.

An extra tip I only discovered late myself: Flying Blue has monthly "Promo Rewards". These are specific routes where you pay 25% to 50% fewer miles. They're published on the first Tuesday of every month. I once booked a round-trip to Bangkok this way for just over 40,000 miles. That's a saving of nearly 13,000 miles, or roughly €130-180 in value.

From Amex Membership Rewards to Flying Blue miles: the fastest route

This is where the story gets really interesting for Belgian travellers. Earning Flying Blue miles purely by flying is slow, unless you're on a plane every month. Most people (myself included, for that matter) fly 3 to 6 times per year. It then takes years to accumulate enough miles for a Business Class award.

The accelerator: Membership Rewards points from the Amex Platinum card. These transfer 1-to-1 to Flying Blue. No devaluation, no hidden costs on the transfer. 50,000 MR points become 50,000 Flying Blue miles. The transfer usually takes 1 to 2 business days, though I've also seen it happen within a few hours.

Let me do the maths. The Amex Platinum costs €780 per year (€65/month). Via the TravelLux.be referral link, you receive a welcome bonus of up to 250,000 Membership Rewards points. This bonus is one-time and requires a minimum spend of approximately €4,000 to €6,000 in the first 3 months.

Admittedly: those 250,000 points are one-time. After that, you earn 1 MR point per euro spent, or 4 points per euro if you activate the Booster option for €10/month extra. With a monthly spend of, say, €2,000, you then earn 8,000 points per month, or 96,000 per year. Enough for an annual Business Class flight to Thailand or an Economy round-trip to the US. That's nothing to sneeze at.

But a caveat is in order here. If you spend less than €1,000 per month via the Amex and hardly use the other benefits (Priority Pass lounges, Fast Lane at Brussels Airport, Fine Hotels + Resorts, travel insurance), then the card at €780 per year is simply too expensive. The numbers need to add up for your situation. Anyone who only flies once a year for a European city trip is better off with a cheaper solution. I only recommend the Amex Platinum when the equation works out positively for you.

Practical booking tips: how to get the most out of Flying Blue from Brussels

Right, you have miles. Now it's about using them wisely. A few things I've learned, partly through trial and error.

Book early, but not too early. Flying Blue opens the booking calendar 360 days before departure. At that point, miles prices are often at their lowest, especially for Business Class. But: the flight schedules for the Brussels-CDG or Brussels-Schiphol connection aren't always finalised by then. I usually book the long-haul flight separately from the feeder flight. I prefer to pay cash for the hop to CDG or Schiphol (€60-120 return via Thalys, Eurostar, or a separate flight) and save my miles for the expensive ocean crossing.

Be flexible with dates. The difference between a Tuesday and a Friday can be 20,000 miles on a round-trip to Asia. The Flying Blue website lets you scan an entire month for miles prices. Use that. Those tied to school holidays almost always pay more, but even then there are cheaper days within that same holiday week.

Combine Air France and KLM smartly. A common mistake: people only search on Air France or only on KLM. The Flying Blue search engine shows both, but not always equally prominently. Try searching via CDG and via Schiphol. Sometimes the KLM route via Schiphol is 15,000 miles cheaper than the Air France route via CDG, or vice versa.

Only transfer when you have a concrete booking plan. Don't send your MR points to Flying Blue "in advance". Membership Rewards points are flexible: you can transfer them to dozens of partners (Brussels Airlines, British Airways, Emirates, Singapore Airlines, and so on). Once they're in Flying Blue, they're locked in. First check whether your desired flight is available in miles, and only then transfer. I once moved 60,000 points to Flying Blue for a flight that, by the time the transfer was complete, was no longer available in that miles class. Lesson learned.

Keep an eye on Promo Rewards. Every first Tuesday of the month, Flying Blue publishes a list of discounted routes. Sometimes there are gems: 50% off a round-trip to Martinique, 25% off New York. At TravelLux.be, we list the most interesting Promo Rewards every month.

Flying Blue versus other options for Belgian travellers

The honest question: is Flying Blue always the best choice for your Membership Rewards points? No. It depends on where you want to go and with which airline.

Brussels Airlines (a Star Alliance member) is the home carrier at Brussels Airport. If you frequently fly directly from Brussels without a layover, Miles & More points (also an Amex transfer partner) sometimes offer better value. Especially to African destinations that Brussels Airlines serves directly. But for Asia and the US, the SkyTeam network of Air France-KLM is often stronger from our region.

British Airways Avios (also an Amex transfer partner) are interesting for those who fly to London frequently. BA's off-peak pricing can make short flights cheap in Avios. But for long-haul, Flying Blue usually wins in terms of value per mile.

My own approach: I keep the bulk of my MR points and only transfer when there's a concrete plan. For Thailand and Vietnam, they go to Flying Blue. For a weekend in London, I use BA Avios. That flexibility is precisely why I prefer Membership Rewards over earning directly in a single programme. You don't lock yourself in.

What also matters: the Amex Platinum offers, beyond the points, quite a few other benefits that help offset the annual €780. Priority Pass Prestige (value ±€500/year) gives you access to more than 1,550 lounges, including a free guest. I use that virtually every time we depart from Brussels Airport. The Fast Lane security at Brussels Airport (value €169/year) regularly saves us half an hour of waiting. And the travel insurance is automatically active when paying with the card, including luggage, cancellation, and medical expenses abroad. All of that together makes the card considerably more attractive for frequent travellers than looking purely at the points.

When is this strategy not for you?

I don't believe in one-size-fits-all solutions. The Amex Platinum + Flying Blue combination is powerful, but not for everyone. A few profiles where the numbers don't add up:

• You fly at most once a year, within Europe: a European Economy round-trip costs €50-200 cash. You don't need miles for that. You won't recoup the €780 annual fee.
• You spend less than €1,000/month via credit card: the earning pace is then so slow that you need years for a meaningful award ticket, and you'd really have to use the other Platinum card benefits intensively to break even.
• You always fly with the same budget airline: if Ryanair or Wizz Air is your regular companion, Flying Blue is of little use. Those airlines aren't part of SkyTeam.
• You dislike planning and flexibility: miles bookings require you to sometimes shift dates, compare routes, and monitor transfer timing. If that causes stress rather than enjoyment, paying cash is simply the better option.

For those who do fly 2 to 4 times per year, occasionally long-haul, and actively use the Amex benefits, the value extraction is a different story. Then you're looking at €1,500 to €3,000+ per year in concrete savings. That's quite worthwhile.

Also read: Amex Platinum Belgium: the complete guide and Using Membership Rewards points wisely.

Transparency: I also receive points if you apply via the link above. That's why I stick to one rule: only recommend it when the numbers work out for you. All details can also be found at americanexpress.com/be.