STL - BRU

$434 Find Cheap Flights from St. Louis to Brussels Airport - Compare and Save

1 adult
1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$723
Typical prices: $684-$1,278
Air Canada, Lufthansa
Wed 4/25Mon 4/30
STL - BRU • 2 stops
Cheapest one-way
$434
Typical prices: $453-$717
Aer Lingus
Fri 11/30
STL - BRU • 2 stops
Nonstop flights
Not available
There are currently no direct flights between St. Louis and Brussels Bruxelles-National Airport. You'll need to take a connecting flight to reach the destination.
Insights
Insights
When to travel
February
Cheapest • 51% price drop
March
Most popular
Good to know
+1
Good to know
+1
Top layover airports
Frankfurt am Main (FRA)
Cheapest • Avg $952 (round-trip)
Atlanta Hartsfield-Jackson (ATL)
Shortest trip • 12h 42m (one-way)
Insights
Insights
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We hope you love your trip to Brussels Bruxelles-National Airport!
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Booking Insights
Flight Deals

Cheap Flights from St. Louis to Brussels (STL-BRU)

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from St. Louis to Brussels

Sun, Apr 25 - Fri, Apr 30
Multiple Airlines Logo
4:05 pm - 8:00 pmSTL  Lambert-St Louis-BRU Brussels Bruxelles-National
20h 55m2 stops Toronto Pearson Intl London Heathrow
Multiple Airlines Logo
8:35 am - 1:25 pmBRU  Brussels Bruxelles-National-STL Lambert-St Louis
11h 50m1 stop Frankfurt am Main
$723Multiple Airlines
Wed, Feb 3 - Wed, Feb 10
Multiple Airlines Logo
4:05 pm - 8:10 pmSTL  Lambert-St Louis-BRU Brussels Bruxelles-National
21h 05m2 stops Toronto Pearson Intl London Heathrow
Multiple Airlines Logo
7:00 am - 1:45 pmBRU  Brussels Bruxelles-National-STL Lambert-St Louis
13h 45m1 stop Frankfurt am Main
$724Multiple Airlines
Wed, Feb 24 - Wed, Mar 3
Multiple Airlines Logo
4:05 pm - 8:10 pmSTL  Lambert-St Louis-BRU Brussels Bruxelles-National
21h 05m2 stops Toronto Pearson Intl London Heathrow
Multiple Airlines Logo
7:00 am - 1:45 pmBRU  Brussels Bruxelles-National-STL Lambert-St Louis
13h 45m1 stop Frankfurt am Main
$724Multiple Airlines
Wed, Feb 17 - Wed, Feb 24
Multiple Airlines Logo
4:05 pm - 8:10 pmSTL  Lambert-St Louis-BRU Brussels Bruxelles-National
21h 05m2 stops Toronto Pearson Intl London Heathrow
Multiple Airlines Logo
8:25 am - 1:45 pmBRU  Brussels Bruxelles-National-STL Lambert-St Louis
12h 20m1 stop Frankfurt am Main
$724Multiple Airlines
Sun, Apr 25 - Fri, Apr 30
Multiple Airlines Logo
4:05 pm - 7:50 amSTL  Lambert-St Louis-BRU Brussels Bruxelles-National
32h 45m1 stop Toronto Pearson Intl
Multiple Airlines Logo
7:00 am - 1:25 pmBRU  Brussels Bruxelles-National-STL Lambert-St Louis
13h 25m1 stop Frankfurt am Main
$726Multiple Airlines
Sun, Apr 25 - Fri, Apr 30
Multiple Airlines Logo
4:05 pm - 7:50 amSTL  Lambert-St Louis-BRU Brussels Bruxelles-National
32h 45m1 stop Toronto Pearson Intl
Multiple Airlines Logo
8:35 am - 1:25 pmBRU  Brussels Bruxelles-National-STL Lambert-St Louis
11h 50m1 stop Frankfurt am Main
$726Multiple Airlines
Sun, Feb 14 - Thu, Feb 18
United Airlines Logo
3:30 pm - 8:55 amSTL  Lambert-St Louis-BRU Brussels Bruxelles-National
10h 25m1 stop Chicago O'Hare Intl
United Airlines Logo
10:00 am - 3:58 pmBRU  Brussels Bruxelles-National-STL Lambert-St Louis
36h 58m2 stops Montreal Pierre Elliott Trudeau Intl Newark
$728United Airlines
Wed, Feb 17 - Wed, Feb 24
Multiple Airlines Logo
4:05 pm - 8:10 pmSTL  Lambert-St Louis-BRU Brussels Bruxelles-National
21h 05m2 stops Toronto Pearson Intl London Heathrow
Multiple Airlines Logo
10:00 am - 3:26 pmBRU  Brussels Bruxelles-National-STL Lambert-St Louis
36h 26m2 stops Montreal Pierre Elliott Trudeau Intl Toronto Pearson Intl
$729Multiple Airlines
Wed, Feb 24 - Wed, Mar 3
Multiple Airlines Logo
4:05 pm - 1:15 pmSTL  Lambert-St Louis-BRU Brussels Bruxelles-National
14h 10m2 stops Toronto Pearson Intl London Heathrow
Multiple Airlines Logo
10:00 am - 3:26 pmBRU  Brussels Bruxelles-National-STL Lambert-St Louis
36h 26m2 stops Montreal Pierre Elliott Trudeau Intl Toronto Pearson Intl
$729Multiple Airlines
Mon, Feb 15 - Fri, Feb 26
United Airlines Logo
1:08 pm - 1:15 pmSTL  Lambert-St Louis-BRU Brussels Bruxelles-National
17h 07m2 stops Chicago O'Hare Intl London Heathrow
United Airlines Logo
7:00 am - 1:45 pmBRU  Brussels Bruxelles-National-STL Lambert-St Louis
13h 45m1 stop Frankfurt am Main
$743United Airlines
Booking Insights

Price, demand and travel trends for St. Louis to Brussels Bruxelles-National Airport flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights with more confidence.

What's the cheapest day of the week to fly from St. Louis to Brussels Bruxelles-National Airport?

Based on deals KAYAK users found in the last 12 months, Thursday is the cheapest day of the week to fly from St. Louis to Brussels Bruxelles-National Airport. It’s 36% cheaper than the average day, while Saturday is the most expensive, with prices 32% higher.

Find deals

Key details for St. Louis to Brussels Bruxelles-National Airport flights

Low season

May

Cheapest flight

$434
Beat the crowds with an average 56% drop in travelers.
The most popular month to fly with an average 47% increase in travelers.
One-way flight from St. Louis to Brussels Bruxelles-National Airport

When to book flights from St. Louis to Brussels

Are your dates flexible? Find out the best times to travel from St. Louis to Brussels based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price

Your St. Louis to Brussels Bruxelles-National Airport flight questions, answered

Find helpful answers about this route, including flight times, airports, airlines and booking tips.

  • What cabin classes can I book on flights from St. Louis to Brussels Bruxelles-National Airport?

    Three cabin classes are available on flights from St. Louis to Brussels Bruxelles-National Airport:

    • Economy Class
    • Premium Economy Class
    • First Class

  • How long is a flight from St. Louis to Brussels Bruxelles-National Airport?

    A nonstop flight from St. Louis to Brussels Bruxelles-National Airport takes 00m, covering 4,393 miles.

  • Do I need a passport to fly from St. Louis to Brussels Bruxelles-National Airport?

    Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.

  • How much should I expect to pay for a St. Louis to Brussels Bruxelles-National Airport flight?

    Round-trip flights from St. Louis to Brussels Bruxelles-National Airport range from $684 to $1,278, with an average of $1,057 over the past 12 months. Anything below $684 counts as a good deal.

  • How are flight prices from St. Louis to Brussels Bruxelles-National Airport looking right now?

    One-way fares from St. Louis to Brussels Bruxelles-National Airport are currently higher than usual. Average one-way flight prices are about $721, which is 17% above the typical average for this route.

  • What car rental options are available at Brussels Bruxelles-National Airport (BRU)?

    Brussels Bruxelles-National Airport (BRU) hosts 5 major car rental companies, with daily rates averaging $48 for economy cars. Top options include:

    • Alamo
    • Hertz
    • keddy by Europcar
    • Europcar
    • Sixt

  • Which airports can I use when flying from St. Louis to Brussels Bruxelles-National Airport?

    Flights from St. Louis to Brussels Bruxelles-National Airport usually depart from Lambert-St Louis (STL) and arrive at Brussels Bruxelles-National (BRU).

  • Which airports do connecting flights from St. Louis to Brussels Bruxelles-National Airport pass through?

    One-stop flights from St. Louis to Brussels Bruxelles-National Airport most commonly connect through:

    • Chicago O'Hare Intl (ORD) - 53% of one-stop connections
    • Atlanta Hartsfield-Jackson (ATL) - 20% of one-stop connections
    • Frankfurt am Main (FRA) - 20% of one-stop connections
    • Washington, D.C. Dulles Intl (IAD) - 7% of one-stop connections

  • Can I save money by using flexible dates for flights from St. Louis to Brussels Bruxelles-National Airport?

    Yes. Flexible dates can save you up to 52% on flights from St. Louis to Brussels Bruxelles-National Airport. Thursday is the cheapest departure day at $685 round-trip on average, while Saturday is the most expensive at $1,399, a difference of $714.

    KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

  • How much time can I save by choosing a different layover airport from St. Louis to Brussels Bruxelles-National Airport?

    Flying via Frankfurt am Main (FRA) gives the shortest average 1-stop total travel time at 12h 01m, compared with 12h 42m via Atlanta Hartsfield-Jackson (ATL) and 12h 59m via Chicago O'Hare Intl (ORD).

  • What is the time difference between St. Louis and Brussels Bruxelles-National Airport?

    Brussels Bruxelles-National Airport is 7 hours ahead of St. Louis (Central European Time vs Central Time). Plan for the time shift when scheduling connections or first-day activities.

  • What popular places can I visit in Brussels Bruxelles-National Airport?

    Some of the most popular sights in Brussels Bruxelles-National Airport are Grand Place, King Baudouin Stadium and Place Sainte-Catherine. These are among the most viewed places in Brussels Bruxelles-National Airport on KAYAK.

Your guide to booking St. Louis to Brussels Bruxelles-National Airport flights

Get tips on when to book, when to fly and what to know before your trip.
  • If your dates are flexible, aim for a Thursday departure and avoid flying on Saturday. On this route, Thursday flights average $685, about $714 less than Saturday fares (51% savings) based on the last 12 months.
  • If you can choose when to travel, plan your St. Louis to Brussels Bruxelles-National Airport trip for February. Fares historically average $516 round-trip in that month - typically $1,060 less than the most expensive month, which is June (based on the last 12 months).
  • If you're arriving late at night and need somewhere to stay, check out these hotels close to Brussels Bruxelles-National Airport.

    • NH Brussels Airport
    • Crowne Plaza Brussels Airport By IHG

More options for your flight from St. Louis to Brussels

Complete your trip to Brussels with a hotel stay or car rental

Car rentals in Brussels
Hotels in Brussels
Vacations in Brussels