$43 Cheap Flights to Brussels, IL

December is the cheapest month to travel to Brussels. Demand is lower then, so fares are usually more affordable. Planning your trip outside of public and school holidays could also help you save.

Score cheap flights to Brussels from New York, Washington and Dallas. These cities generally offer the best fares to this unique destination. But keep in mind that seasonality, demand and stopovers also influence rates, so stay flexible and book when you see a bargain.

Take your pick of 150 US cities that have direct flights to Brussels. When booking on Expedia, select the "Direct flights only" box to compare nonstop itineraries. Fly to Brussels from any of these leading cities:

• New York
• Washington
• Dallas
• Boston
• Phoenix

If you're searching for cheap flights to Brussels, consider traveling outside of peak season. Booking as early as possible is also likely to save you money. Or, fly on a different day — flights on a Thursday are on average 16% cheaper than Sunday options.* Opt to receive flight price alerts on the Expedia app and you'll be notified as soon as fares drop.

*Best day of the week to book, depart and ideal booking window recommendations based on average round-trip ticket prices for January through August 2023, sourced from Airline Reporting Corporation's (ARC) global airline sales database. Percentages noted are averages.

Although booking in advance is typically the easiest way to save money, don't worry if your Brussels getaway is last minute. You can still find cheap flights to Brussels, especially if your plans have some flexibility. Try changing your trip dates, exploring different ticket types or flying out of an alternative hub.

For the biggest savings on domestic journeys, book your flight to Brussels 28 days ahead of your travel dates. For international flights, search for your ticket between two and four months in advance. This boosts your chances of getting the departure dates and times you want.*

*Best day of the week to book, depart and ideal booking window recommendations based on average round-trip ticket prices for January through August 2023, sourced from Airline Reporting Corporation's (ARC) global airline sales database. Percentages noted are averages.

Sundays are usually the best day to book a cheap flight to Brussels, where you can save 8% on average compared to a Friday. If you choose to purchase on a Friday, expect to spend more as this is typically the most expensive day.*

*Best day of the week to book, depart and ideal booking window recommendations based on average round-trip ticket prices for January through August 2023, sourced from Airline Reporting Corporation's (ARC) global airline sales database. Percentages noted are averages.

A total of 10 carriers connect 33 airports around the world to Brussels. Here are a few of the top airlines to Brussels, where Lambert-St. Louis Intl. Airport (STL) is the chief entry point:

• Delta Air Lines
• American Airlines
• United Airlines
• Southern Airways Express

Brussels's main gateway is Lambert-St. Louis Intl. Airport (STL). If you'd like more nearby choices when flying to Brussels, consider Spirit of St. Louis Airport (SUS), St. Louis Downtown Airport (CPS) or MidAmerica-St. Louis Airport (BLV). You can also fly to Brussels through Jacksonville Municipal Airport (IJX).

Landing at Lambert-St. Louis Intl. Airport (STL) puts you roughly 19 mi southeast of central Brussels.

Book a Brussels flight and hotel package deal on Expedia, and you could make significant savings. It's simple to bundle your flight and hotel, and you can also add car rentals and tours to create your own personalized Brussels trip. Plus, there's nothing like the convenience of booking everything in the same place.

You can typically cancel or change your flight to Brussels within 24 hours of booking. However, keep in mind that some fares are non-refundable. In those cases, you may receive a credit toward future travel in place of a direct refund. Make sure you check the airline's terms of service in your itinerary for exact details. You can use Expedia's "Changes included" or "No cancel fee" filters during your search to find cheap flights to Brussels with flexible change policies. For additional information, head to our Customer Service Portal.