Our data shows that Monday is the least expensive day to fly to Brussels. Tickets to fly out on this day can be as low as $599. When flying out on a Saturday, the most expensive travel day of the week, you can expect to see flight prices from United States to Brussels for around $698.
At noon is the cheapest time of day to fly from United States to Brussels when you can find flight prices for as low as $588. Flying to Brussels at noon is an ideal time because this is during off-peak travel hours. In the afternoon is when there is more demand to fly to Brussels, so prices are often more expensive at around $649 per ticket.