Cheapest Time to Fly to Belgium (and the Most Expensive)

Flights to Belgium can shift a lot by season—especially for US travelers, since most routes funnel into one main hub and prices jump fast during summer and holiday weeks.

Most travelers fly into Brussels (BRU). If you’re flexible, it’s also worth checking nearby gateway cities in Europe and comparing total trip cost—but this guide stays focused on airfare timing.

Quick Take

• Cheapest time to fly to Belgium: mid-January–February, November, and early December
• Most expensive time to fly to Belgium: June–August, late December–early January, and certain festival/event weeks

Cheapest Time to Fly to Belgium

The cheapest time to fly to Belgium is usually when demand dips—meaning more open seats and better odds of a real price drop.

Mid-January to February (post-holiday low)

This is often the most reliable low-demand stretch after New Year travel wraps up. For many US routes, it’s when you’ll see the most “normal” pricing.

Money-saving tip: Midweek departures: Tuesday–Thursday often price better than weekend-heavy trips.
Heads-up: Short-notice weekends: quick weekend getaways can still run pricey even in a cheaper season.

November (pre-holiday value window)

November is one of the best months to find cheaper fares to Belgium. It’s after fall travel and before the holiday rush.

Money-saving tip: Be flexible by 2–3 days: shifting dates slightly can move you into a cheaper fare bucket.
Heads-up: Late November: prices can rise as Thanksgiving travel kicks in from the US.

Early December (before the year-end surge)

Early December can be a strong deal window—then prices often climb quickly as you get closer to Christmas and New Year.

Money-saving tip: Return before the holiday crush: early-to-mid December returns often price better than late-month returns.
Heads-up: Market weekends: some December weekends price higher if they line up with popular winter market travel.

Most Expensive Time to Fly to Belgium

The most expensive time to fly to Belgium is when weather is best and travel dates are less flexible—so the cheaper seats disappear early.

June to August (summer peak)

Summer is typically the priciest stretch for flights to Belgium. You’ll often see higher fares across the board, especially for nonstop routings and weekend travel.

Peak within peak: Late June through early August: many families and long-trip travelers lock in these weeks.

Late December to early January (holiday surge)

This is usually the toughest time for true bargains. Late-December departures and early-January returns often carry premium pricing.

Peak within peak: The week after Christmas through the first week of January.

Late July event weeks (festival pricing spikes)

Belgium can see sharp price jumps around major summer event weeks.

Heads-up: Big festival dates: if your trip overlaps a major event week, book earlier than you normally would.

Want Great Timing Without Peak Flight Prices?

If you want Belgium when it still feels like a great time to go—without paying summer-level airfare—these windows often land well:

• Late March: Better odds than April/May for pricing, while spring travel starts warming up
• September: After summer crowds but before holiday season
• Early December: Good timing before late-month holiday pricing takes off

Money-saving tip: Build the trip around the cheaper flight week first—then lock hotels and plans after the airfare is set.

Best Window for Cheap Flights to Belgium

Belgium pricing usually rewards early price tracking—especially for summer and holiday weeks.

• Lower-demand periods: Start tracking: 2–4 months ahead
• Peak periods (summer + holidays): Start watching: 4–7+ months ahead
• Event weeks: Book earlier: if your dates are fixed, earlier usually wins

Money-saving tip: If you’ve got a major international airport within a reasonable drive, you can often save a lot compared to flying out of smaller regional airports.

Seasonal Flight Demand Chart for Belgium

Use this chart as a quick guide to the cheapest vs. priciest months to fly.