United Polaris offers lie-flat seats with Saks Fifth Avenue bedding on long-haul routes.
United Premium Plus includes extra legroom and upgraded meals on international routes.

Round-trip from | $381 (CrystalTravel) |
|---|---|
One-way from | $174 (Kiwi.com) |
Popular in | December |
Cheapest in | January |
Average price | $616 |
Fly from
Fly to
Route
Depart
Return
Price
BostonBrussels
BOS - BRU
BOSBRU
Boston Logan Intl
di 1/13
12:08 pm-7:50 am
2 stops13h 42m
Brussels Bruxelles-National
di 1/20
10:00 am-6:32 pm
2 stops14h 32m
BaltimoreBrussels
BWI - BRU
BWIBRU
Baltimore/Washington
wo 1/21
7:40 pm-11:55 am
1 stop10h 15m
Brussels Bruxelles-National
vr 1/30
12:50 pm-6:40 pm
1 stop11h 50m
BostonBrussels
BOS - BRU
BOSBRU
Boston Logan Intl
wo 1/7
2:20 pm-11:10 am
2 stops14h 50m
Brussels Bruxelles-National
wo 1/14
10:00 am-2:52 pm
1 stop10h 52m
BostonBrussels
BOS - BRU
BOSBRU
Boston Logan Intl
ma 12/1
3:40 pm-1:15 pm
2 stops15h 35m
Brussels Bruxelles-National
di 12/16
10:00 am-10:37 pm
2 stops18h 37m
BostonBrussels
BOS - BRU
BOSBRU
Boston Logan Intl
ma 1/26
10:10 pm-10:00 am
1 stop29h 50m
Brussels Bruxelles-National
ma 2/2
8:10 pm-8:20 pm
1 stop30h 10m
BaltimoreBrussels
BWI - BRU
BWIBRU
Baltimore/Washington
zo 4/5
8:30 pm-12:50 pm
1 stop10h 20m
Brussels Bruxelles-National
ma 4/13
1:50 pm-7:25 pm
1 stop11h 35m
BaltimoreBrussels
BWI - BRU
BWIBRU
Baltimore/Washington
do 1/29
7:40 pm-11:55 am
1 stop10h 15m
Brussels Bruxelles-National
vr 2/6
12:50 pm-6:40 pm
1 stop11h 50m
BaltimoreBrussels
BWI - BRU
BWIBRU
Baltimore/Washington
wo 1/28
7:40 pm-11:55 am
1 stop10h 15m
Brussels Bruxelles-National
vr 2/6
12:50 pm-6:40 pm
1 stop11h 50m
BaltimoreBrussels
BWI - BRU
BWIBRU
Baltimore/Washington
wo 4/8
8:30 pm-12:50 pm
1 stop10h 20m
Brussels Bruxelles-National
vr 4/17
1:50 pm-7:25 pm
1 stop11h 35m
BostonBrussels
BOS - BRU
BOSBRU
Boston Logan Intl
do 1/15
6:15 am-7:50 am
2 stops19h 35m
Brussels Bruxelles-National
ma 1/19
8:10 pm-8:20 pm
1 stop30h 10m
Currently, February is the cheapest month in which you can book a flight from USA to Brussels (average of $316). Flying from USA to Brussels in June is currently the most expensive (average of $437). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
When flying from USA to Brussels, the time of day you fly usually plays a role in the price. Save by searching for a flight at noon, which can drop the price by up to 9% versus a flight in the afternoon.
Travelers seeking maximum savings on their USA to Brussels flight should consider departing on Friday afternoons when fares are most often at their lowest. Thursday at noon flights should be avoided if possible as fares are typically the most expensive at this time.
About 42% of weekly flights between $[0, place:'genitive'] and $[1, place:'genitive'] have experienced delays in the past year, with the average delay time being 201 minutes.
Historically, flights departing in the morning are less likely to be delayed, whereas flights leaving in the early afternoon tend to experience delays more often.
Over the last year, Air Europa have had the lowest number of delays on this route, with just 18% of flights being delayed.
Boarding
Comfort
Crew
Food
Entertainment
Overall
Reviews
Anonymous,Jul 2025
OSL - CPH
Boarding
Comfort
Crew
Food
Entertainment
Overall
Reviews
Anonymous,Jul 2025
OSL - CPH
Boarding
Comfort
Crew
Food
Entertainment
Overall
Reviews
Anonymous,Jul 2025
OSL - CPH
Boarding
Comfort
Crew
Food
Entertainment
Overall
Reviews
Anonymous,Jul 2025
OSL - CPH
Boarding
Comfort
Crew
Food
Entertainment
Overall
Reviews
Anonymous,Jul 2025
OSL - CPH
Boarding
Comfort
Crew
Food
Entertainment
Overall
Reviews
Anonymous,Jul 2025
OSL - CPH
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$206 | Average$789 | FlexibilityNo cancel fee | On-time79% | |
| Cheapest$256 | Average$582 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$322 | Average$583 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$352 | Average$587 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$355 | Average$865 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$397 | Average$697 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$397 | Average$893 | FlexibilityNo cancel fee | On-time67% | |
| Cheapest$406 | Average$842 | FlexibilityNo cancel fee | On-time70% | |
| Cheapest$410 | Average$752 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$431 | Average$886 | FlexibilityNo cancel fee | On-timeN/A |