Brussels Airlines Flight 3704 Deals & Information (2025/2026)

Wander Wisely with exceptional service, 24/7 supportOpens in a new window

Feel at ease with free flight cancellations within 24 hours of booking

Change your flight without a fee on select flights

Brussels Airlines Flight 3704 Route Deals From $51

The cheapest prices found with in the last 7 days for return flights were $132 and $51 for one-way flights to Brussels - National for the period specified. Prices and availability are subject to change. Additional terms apply.

Sun, Dec 7 - Fri, Dec 12
BCN
Barcelona Intl.
BRU
Brussels - National
$132 Roundtrip, found 2 days ago
$132
Roundtrip
found 2 days ago
Select Brussels Airlines flight, departing Sun, Dec 7 from Barcelona Intl. to Brussels - National, returning Fri, Dec 12, priced at $132 found 2 days ago
Sun, Dec 7 - Fri, Dec 12
BCN
Barcelona Intl.
BRU
Brussels - National
$138 Roundtrip, found 2 days ago
$138
Roundtrip
found 2 days ago
Select Brussels Airlines flight, departing Sun, Dec 7 from Barcelona Intl. to Brussels - National, returning Fri, Dec 12, priced at $138 found 2 days ago
Fri, Sep 5 - Mon, Sep 8
BCN
Barcelona Intl.
BRU
Brussels - National
$140 Roundtrip, found 3 days ago
$140
Roundtrip
found 3 days ago
Select Brussels Airlines flight, departing Fri, Sep 5 from Barcelona Intl. to Brussels - National, returning Mon, Sep 8, priced at $140 found 3 days ago
Fri, Sep 12 - Tue, Sep 16
BCN
Barcelona Intl.
BRU
Brussels - National
$144 Roundtrip, found 12 hours ago
$144
Roundtrip
found 12 hours ago
Select Brussels Airlines flight, departing Fri, Sep 12 from Barcelona Intl. to Brussels - National, returning Tue, Sep 16, priced at $144 found 12 hours ago
Thu, Sep 18 - Sun, Sep 21
BCN
Barcelona Intl.
BRU
Brussels - National
$146 Roundtrip, found 4 days ago
$146
Roundtrip
found 4 days ago
Select Brussels Airlines flight, departing Thu, Sep 18 from Barcelona Intl. to Brussels - National, returning Sun, Sep 21, priced at $146 found 4 days ago
Thu, Oct 2 - Wed, Oct 8
BCN
Barcelona Intl.
BRU
Brussels - National
$149 Roundtrip, found 2 days ago
$149
Roundtrip
found 2 days ago
Select Brussels Airlines flight, departing Thu, Oct 2 from Barcelona Intl. to Brussels - National, returning Wed, Oct 8, priced at $149 found 2 days ago
Tue, Sep 2 - Sat, Sep 6
BCN
Barcelona Intl.
BRU
Brussels - National
$154 Roundtrip, found 16 hours ago
$154
Roundtrip
found 16 hours ago
Select Brussels Airlines flight, departing Tue, Sep 2 from Barcelona Intl. to Brussels - National, returning Sat, Sep 6, priced at $154 found 16 hours ago

Frequently asked questions

What route does flight number SN3704 take?
You'll be landing at BRU from Barcelona Intl. Airport (BCN) if you've booked a ticket on flight number SN3704. You'll be in the sky for 2 hours and 5 minutes during this trip. It's also worthwhile noting that the service conveniently operates non-stop.
What terminal does SN3704 fly out of?
SN3704 runs between Barcelona Airport (BCN-Barcelona Intl.) and Brussels Airport (BRU-Brussels - National), and travelers taking this flight usually board the aircraft from Terminal 1.
What kind of plane is on flight number SN3704?
Expect to cruise aboard an Airbus A319 if you've booked a seat on flight SN3704. Most services from BCN to Brussels Airport (BRU-Brussels - National) use this model of aircraft.
If I am not able to travel due to COVID-19, can I change my flight to a later date?
For more info about changing your SN3704 flight with Travelocity, please visit our Customer Service Portal.