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Cheap flights from the United States to Belgium from $170

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from the United States to Belgium departing on 10/14. 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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Find the cheapest flights from the United States to Belgium

Recent round-trip flight deals from the United States to Belgium

Icelandair Logo
3:45 pm - 12:50 pmSEA-BRU
12h 05m1 stop
Icelandair Logo
1:50 pm - 8:40 pmBRU-SEA
15h 50m1 stop
$392Icelandair
Find Deal
Thu, Oct 9 - Thu, Oct 16
Aer Lingus Logo
5:30 pm - 9:40 amBOS-BRU
10h 10m1 stop
Aer Lingus Logo
10:15 am - 7:55 pmBRU-BOS
14h 40m1 stop
$398Aer Lingus
Find Deal
Sat, Oct 18 - Sat, Nov 1
United Airlines Logo
7:08 pm - 8:15 amBOS-BRU
31h 07m1 stop
United Airlines Logo
3:45 pm - 2:05 pmBRU-BOS
28h 20m1 stop
$406United Airlines
Find Deal
Sat, Oct 25 - Mon, Nov 3
Scandinavian Airlines Logo
6:30 pm - 8:55 pmEWR-BRU
20h 25m1 stop
Scandinavian Airlines Logo
7:45 pm - 1:35 pmBRU-EWR
23h 50m1 stop
$408Scandinavian Airlines
Find Deal
Thu, Nov 27 - Sun, Dec 7
United Airlines Logo
10:20 am - 8:05 amBOS-BRU
15h 45m1 stop
United Airlines Logo
10:00 am - 11:07 amBRU-BOS
31h 07m2 stops
$410United Airlines
Find Deal
Wed, Oct 8 - Wed, Oct 15
Scandinavian Airlines Logo
7:00 am - 7:50 pmORD-BRU
29h 50m2 stops
Scandinavian Airlines Logo
10:20 am - 4:45 pmBRU-ORD
13h 25m1 stop
$412Scandinavian Airlines
Find Deal
Tue, Nov 18 - Thu, Nov 27
Brussels Airlines Logo
3:15 pm - 11:00 amBOS-BRU
13h 45m2 stops
Brussels Airlines Logo
4:25 pm - 6:35 pmBRU-BOS
32h 10m1 stop
$425Brussels Airlines
Find Deal
Tue, Oct 21 - Mon, Nov 3
Brussels Airlines Logo
3:15 pm - 3:15 pmBOS-BRU
18h 00m2 stops
Brussels Airlines Logo
12:45 pm - 5:40 pmBRU-BOS
10h 55m1 stop
$434Brussels Airlines
Find Deal
Wed, Oct 15 - Sun, Oct 19
British Airways Logo
6:55 pm - 11:10 amBOS-BRU
10h 15m1 stop
British Airways Logo
8:45 pm - 3:50 pmBRU-BOS
25h 05m2 stops
$438British Airways
Find Deal
Mon, Nov 3 - Mon, Nov 17
British Airways Logo
7:30 am - 10:50 amBOS-BRU
21h 20m1 stop
British Airways Logo
11:50 am - 9:55 pmBRU-BOS
16h 05m1 stop
$458British Airways
Find Deal
Sun, Dec 14 - Wed, Dec 31

Icelandair flights from United States to Belgium

Our best Icelandair deals on United States to Belgium flight tickets
Icelandair
Oct 9
SEA3:45 pmSeattle/Tacoma Intl
12h 05m
1 stop
BRU12:50 pmBrussels Bruxelles-National
Oct 16
BRU1:50 pmBrussels Bruxelles-National
15h 50m
1 stop
SEA8:40 pmSeattle/Tacoma Intl
$392
Find similar
Icelandair
Oct 12
SEA3:45 pmSeattle/Tacoma Intl
12h 05m
1 stop
BRU12:50 pmBrussels Bruxelles-National
Oct 24
BRU1:50 pmBrussels Bruxelles-National
15h 50m
1 stop
SEA8:40 pmSeattle/Tacoma Intl
$400
Find similar
Icelandair
Oct 5
SEA3:45 pmSeattle/Tacoma Intl
12h 05m
1 stop
BRU12:50 pmBrussels Bruxelles-National
Oct 10
BRU1:50 pmBrussels Bruxelles-National
15h 50m
1 stop
SEA8:40 pmSeattle/Tacoma Intl
$407
Find similar

Aer Lingus flights from United States to Belgium

Our best Aer Lingus deals on United States to Belgium flight tickets
Aer Lingus
Oct 18
BOS5:30 pmBoston Logan Intl
10h 10m
1 stop
BRU9:40 amBrussels Bruxelles-National
Nov 1
BRU10:15 amBrussels Bruxelles-National
14h 40m
1 stop
BOS7:55 pmBoston Logan Intl
$398
Find similar
Aer Lingus
Jan 16
EWR5:45 pmNewark
9h 50m
1 stop
BRU9:35 amBrussels Bruxelles-National
Jan 19
BRU10:15 amBrussels Bruxelles-National
12h 00m
1 stop
EWR4:15 pmNewark
$399
Find similar
Aer Lingus
Nov 11
EWR5:45 pmNewark
9h 50m
1 stop
BRU9:35 amBrussels Bruxelles-National
Nov 16
BRU10:15 amBrussels Bruxelles-National
12h 00m
1 stop
EWR4:15 pmNewark
$400
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from United States to Belgium that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated September 16, 2025.
Use the filters below to find and compare flights from the United States to Belgium that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

SeattleBrussels

SEA - BRU

SEABRU

Seattle/Tacoma Intl

Thu 10/9

3:45 pm-12:50 pm

1 stop12h 05m

Brussels Bruxelles-National

Thu 10/16

1:50 pm-8:40 pm

1 stop15h 50m

$392

BostonBrussels

BOS - BRU

BOSBRU

Boston Logan Intl

Sat 10/18

5:30 pm-9:40 am

1 stop10h 10m

Brussels Bruxelles-National

Sat 11/1

10:15 am-7:55 pm

1 stop14h 40m

$398

BostonBrussels

BOS - BRU

BOSBRU

Boston Logan Intl

Sat 10/25

7:08 pm-8:15 am

1 stop31h 07m

Brussels Bruxelles-National

Mon 11/3

3:45 pm-2:05 pm

1 stop28h 20m

$406

NewarkBrussels

EWR - BRU

EWRBRU

Newark

Thu 11/27

6:30 pm-8:55 pm

1 stop20h 25m

Brussels Bruxelles-National

Sun 12/7

7:45 pm-1:35 pm

1 stop23h 50m

$408

BostonBrussels

BOS - BRU

BOSBRU

Boston Logan Intl

Wed 10/8

10:20 am-8:05 am

1 stop15h 45m

Brussels Bruxelles-National

Wed 10/15

10:00 am-11:07 am

2 stops31h 07m

$410

ChicagoBrussels

ORD - BRU

ORDBRU

Chicago O'Hare Intl

Tue 11/18

7:00 am-7:50 pm

2 stops29h 50m

Brussels Bruxelles-National

Thu 11/27

10:20 am-4:45 pm

1 stop13h 25m

$412

BostonBrussels

BOS - BRU

BOSBRU

Boston Logan Intl

Tue 10/21

3:15 pm-11:00 am

2 stops13h 45m

Brussels Bruxelles-National

Mon 11/3

4:25 pm-6:35 pm

1 stop32h 10m

$425

BostonBrussels

BOS - BRU

BOSBRU

Boston Logan Intl

Wed 10/15

3:15 pm-3:15 pm

2 stops18h 00m

Brussels Bruxelles-National

Sun 10/19

12:45 pm-5:40 pm

1 stop10h 55m

$434

BostonBrussels

BOS - BRU

BOSBRU

Boston Logan Intl

Mon 11/3

6:55 pm-11:10 am

1 stop10h 15m

Brussels Bruxelles-National

Mon 11/17

8:45 pm-3:50 pm

2 stops25h 05m

$438

BostonBrussels

BOS - BRU

BOSBRU

Boston Logan Intl

Sun 12/14

7:30 am-10:50 am

1 stop21h 20m

Brussels Bruxelles-National

Wed 12/31

11:50 am-9:55 pm

1 stop16h 05m

$458

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Belgium from

How to get the cheapest flight ticket from United States to Belgium

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 cheapest month to fly to Belgium?

In general, January is the cheapest month to fly from United States to Belgium. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $560. If you are unable to visit Belgium during the month of January, then departing from United States during the month March is also very affordable. Most momondo users find prices during this month for around $578.

What is the cheapest day to depart on your flight to Belgium?

Our data shows that Tuesday is the least expensive day to fly to Belgium. Tickets to fly out on this day can be as low as $786. If your travel schedule is flexible, try to avoid departing on a Saturday because tickets tend to average around $956. These prices are subject to change though, so be sure to set up a Price Alert for flights to Belgium.

What is the cheapest time of day to depart on your flight to Belgium?

Our most recent data shows that the best time of day to fly to Belgium is in the evening. Flights from United States to Belgium during this time can be as low as $787. Flights to Belgium are more costly in the morning, with an average ticket price of $999. Departure times in the morning fall within the peak daily travel times, which is why tickets can be more expensive.

What is the cheapest United States to Belgium flight route?

Fly from Newark to Brussels Bruxelles-National for the best United States - Belgium flight prices

How far in advance should I book a flight to Belgium?

You are more likely to see cheaper flights to Belgium from United States when booking weeks ahead of your departure date. In general, you can expect to find flights to Belgium for around $737 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Belgium from United States for as low as $570 on momondo.

What cabin class options are available on United States to Belgium flights?

There are 3 cabin classes available to choose from on United States to Belgium flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on United States to Belgium flights?

You could potentially save up to 38% on your flight if you consider stops on a United States to Belgium flight.

Cheap United States to Belgium flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from United States to Belgium

Best Price Found

$488

Fastest flight time

7h 05m

Direct flights

Every day

Airports in Belgium

1 airport
The best one-way flight to Belgium from United States in the past 72 hours is $488. The best round-trip flight deal from United States to Belgium found on momondo in the last 72 hours is $612.
The fastest flight from United States to Belgium takes 7h 05m
Direct flights go from United States to Belgium every day.
There is 1 airport near Belgium: Brussels Bruxelles-National (BRU)
Search flight deals

  • When did momondo last update prices for flights from United States to Belgium?

    Prices for flights from United States to Belgium refresh daily.

  • How many operators does momondo search for flights from United States to Belgium?

  • How old do you have to be to fly from United States to Belgium?

    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 United States to Belgium.

  • What documentation or ID do you need to fly to Belgium?

    The required travel and health documents for your Belgium trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Belgium. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular plane model from United States to Belgium?

Best airlines flying from United States to Belgium

Compare and see reviews for airlines that fly from United States to Belgium with momondo
Airline
Rating
Free Cancellation
Price
SWISSPriceFrom $206Free CancellationRating
7.6
1,737 reviews
Search SWISS flights
IcelandairPriceFrom $256Free CancellationRating
7.0
544 reviews
Search Icelandair flights
Scandinavian AirlinesPriceFrom $322Free CancellationRating
7.4
1,486 reviews
Search Scandinavian Airlines flights
PLAYPriceFrom $352Free CancellationRating
7.0
103 reviews
Search PLAY flights
Brussels AirlinesPriceFrom $366Free CancellationRating
7.2
359 reviews
Search Brussels Airlines flights
IberiaPriceFrom $397Free CancellationRating
7.0
2,924 reviews
Search Iberia flights
Air CanadaPriceFrom $397Free CancellationRating
7.1
10,000 reviews
Search Air Canada flights
TAP AIR PORTUGALPriceFrom $424Free CancellationRating
7.1
1,975 reviews
Search TAP AIR PORTUGAL flights
DeltaPriceFrom $431Free CancellationRating
7.9
7,957 reviews
Search Delta flights
Aer LingusPriceFrom $449Free CancellationRating
7.2
1,274 reviews
Search Aer Lingus flights

Why use momondo?

Why should I use momondo to find a flight deal from United States to Belgium?

Finding the right flight to Belgium from United States is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Belgium quick and easy, saving you time and money.

Can I find flights from United States to Belgium with flexible booking policies on momondo?

Yes. All flights to Belgium from United States on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from United States to Belgium?

Once you have performed a search for United States to Belgium flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from United States to Belgium right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of United States to Belgium flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

An easier way to manage your Belgium trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
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