Cheap flights from St. Louis to Brussels Bruxelles-National Airport from $689
This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from St. Louis to Brussels Bruxelles-National Airport departing on 5/19. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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United Airlines flights from St. Louis to Brussels Bruxelles-National Airport
Our best United Airlines deals on St. Louis to Brussels Bruxelles-National Airport flight tickets
Air Canada flights from St. Louis to Brussels Bruxelles-National Airport
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How to get the cheapest flight ticket from St. Louis to Brussels Bruxelles-National Airport
Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip
What is the typical price of a round-trip flight between St. Louis and Brussels Bruxelles-National Airport?
What is the cheapest month to fly to Brussels Bruxelles-National Airport?
The cheapest month to fly to Brussels Bruxelles-National Airport from St. Louis is in February. Flight prices, which tend to average around $690, are often lower during this time because this is during the off-season. If you aren’t able to travel during the month of February, then book flights to Brussels Bruxelles-National Airport from St. Louis during March instead. Flights to Brussels Bruxelles-National Airport in March, while not as cheap as those in February, still average around $725.
What is the cheapest day to depart on your flight to Brussels Bruxelles-National Airport?
The cheapest day to depart from St. Louis to Brussels Bruxelles-National Airport is on a Friday. Travelers who choose to depart for Brussels Bruxelles-National Airport on a Friday will often find tickets for as low as $1,035. When flying out on a Monday, the most expensive travel day of the week, you can expect to see flight prices from St. Louis to Brussels Bruxelles-National Airport for around $1,431.
When to book flights from St. Louis to Brussels Bruxelles-National Airport
Cheap St. Louis to Brussels Bruxelles-National Airport (STL to BRU) flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from St. Louis to Brussels Bruxelles-National Airport
How far is Lambert-St Louis to Brussels Bruxelles-National by plane?
The straight-line distance from Lambert-St Louis to Brussels Bruxelles-National is 4393.0 mi. Flights usually cover this in 10h 17m, depending on flying conditions and air traffic around both airports.
When did momondo last update prices for flights from Lambert-St Louis Airport to Brussels Bruxelles-National Airport?
Prices for flights from Lambert-St Louis Airport to Brussels Bruxelles-National Airport are refreshed on a daily basis.
How many operators does momondo search for flights from Lambert-St Louis Airport to Brussels Bruxelles-National Airport?
As of April 2025, there is 1 operator available to choose from for flights from Lambert-St Louis Airport to Brussels Bruxelles-National Airport.
How old do you have to be to fly from Lambert-St Louis Airport to Brussels Bruxelles-National Airport?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Lambert-St Louis Airport to Brussels Bruxelles-National Airport.
What documentation or ID do you need to fly to Brussels Bruxelles-National Airport?
The travel and health documents required for your trip to Brussels Bruxelles-National Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Brussels Bruxelles-National Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
What is the most popular airline from St. Louis to Brussels Bruxelles-National Airport?
Based on momondo bookings for flights between St. Louis and Brussels Bruxelles-National Airport, the leading airline is United Airlines, making up 100% of the total bookings.
Best airlines flying from St. Louis to Brussels Bruxelles-National Airport
Compare and see reviews for airlines that fly from St. Louis to Brussels Bruxelles-National Airport with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $578 | Free Cancellation | Rating 7.4 8,616 reviews |
Traveling to a place near Brussels?
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Why should I use momondo to find a flight deal from St. Louis to Brussels?
To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Brussels from St. Louis.
Can I find flights from St. Louis to Brussels with flexible booking policies on momondo?
momondo does allow users to show only those flights to Brussels from St. Louis which offer a flexible booking policy as well as other useful filters and features.
How can momondo help me find flights from St. Louis to Brussels?
Once all potential St. Louis to Brussels flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.
I’m not ready to book a flight from St. Louis to Brussels right now. Can momondo alert me if prices change?
Yes momondo offers price alerts on flights to Brussels from St. Louis. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.