How to Find Cheap Flights to Belgium (2026)
Quick answer
The cheapest route into Belgium is usually Brussels South Charleroi Airport, home to several budget carriers, though it sits well outside the capital. Compare it against Brussels Airport (Zaventem), which has more routes and airlines but sometimes higher fares. Fly midweek, stay flexible on dates, and book European short-haul 3–8 weeks out for the best pricing.
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Compare all three Belgian airports
Belgium has three main international airports worth checking on a metasearch before booking: Brussels Airport (Zaventem, the main hub with the most airlines and long-haul routes), Brussels South Charleroi Airport (further out but a base for several low-cost carriers), and Antwerp Airport (smaller, with limited routes but useful if you're headed straight there). Searching all three at once, rather than defaulting to Zaventem, is often the single biggest lever on price.
Charleroi vs Zaventem: weigh the whole trip
| Airport | Distance to Brussels center | Typical strength |
|---|---|---|
| Brussels Airport (BRU / Zaventem) | ~14 km | More airlines, direct trains, long-haul options |
| Brussels South Charleroi (CRL) | ~46 km | Lower base fares on budget carriers |
| Antwerp Airport (ANR) | ~City-adjacent for Antwerp | Convenient only if flying direct to Antwerp |
A cheaper Charleroi fare can be offset by a longer, pricier transfer into the city, so add the bus or shuttle cost before deciding which airport actually saves you money.
Fly midweek and off-peak
As with most European short-haul routes, Tuesday, Wednesday and Thursday departures are typically cheaper than weekend ones. Early-morning and late-evening flights also tend to undercut the convenient midday departures.
Time your trip around the calendar
July and August, plus the run-up to Christmas markets in December, are Belgium's busiest and most expensive travel windows. Late January through February (outside the holidays) and October through November tend to be quieter and cheaper, with Brussels' museums and Bruges' canals still very much open.
Watch connecting hubs
If you're flying from outside Europe, routes connecting through major hubs like Frankfurt, Amsterdam, Paris or London can sometimes undercut a "direct to Brussels" search, especially on long-haul legs. Compare both and weigh the extra connection time against the saving.
Other ways to trim the fare
- Set a price alert on your specific route instead of checking fares manually — let it notify you when prices dip.
- Price the all-in cost, not just the headline fare — budget carriers into Charleroi often charge extra for a cabin bag or seat selection.
- Consider an open-jaw itinerary (fly into Brussels, out of Amsterdam or Paris) if you're combining Belgium with a wider European trip.
- Book in the right window: roughly 3–8 weeks ahead for European short-haul, and 2–6 months ahead for long-haul into Belgium.
Frequently asked questions
Which airport is cheapest for flights to Belgium?
Brussels South Charleroi Airport is generally the cheapest, since it's the main base for several budget carriers, though it sits about 46 km south of Brussels city center. Brussels Airport (Zaventem) is closer in but often pricier.
What is the cheapest time of year to fly to Belgium?
Late winter (January–February, excluding the holidays) and parts of autumn (October–November) tend to have lower fares, since they fall outside the summer peak and major holiday windows.
Is Antwerp worth flying into instead of Brussels?
Antwerp Airport has far fewer routes than Brussels' two airports, so it's rarely the cheapest option, but it can be convenient if you're headed straight to Antwerp and a direct route exists on your dates.
How far ahead should I book flights to Belgium?
For short-haul European routes, 3–8 weeks ahead usually gives the best fare range; from outside Europe, 2–6 months ahead is typically better.
The bottom line
Cheap flights to Belgium come down to comparing all three airports, staying flexible on dates, and booking in the right window rather than chasing a single trick. Search live fares on ScanFlyGo and check the popular routes page for current pricing to Brussels, Antwerp and beyond.
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