Brussels Airlines Flight SN3705 Deals & Information (2025/2026)

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Brussels Airlines Flight 3705 Route Deals From $68

The cheapest prices found with in the last 7 days for return flights were $105 and $68 for one-way flights to Barcelona Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Sun, Apr 19 - Tue, Apr 21
BRU
Brussels - National
BCN
Barcelona Intl.
$105 Roundtrip, found 4 hours ago
$105
Roundtrip
found 4 hours ago
Select Brussels Airlines flight, departing Sun, Apr 19 from Brussels - National to Barcelona Intl., returning Tue, Apr 21, priced at $105 found 4 hours ago
Tue, Sep 2 - Thu, Sep 4
BRU
Brussels - National
BCN
Barcelona Intl.
$118 Roundtrip, found 1 day ago
$118
Roundtrip
found 1 day ago
Select Brussels Airlines flight, departing Tue, Sep 2 from Brussels - National to Barcelona Intl., returning Thu, Sep 4, priced at $118 found 1 day ago
Sun, Apr 19 - Tue, Apr 21
BRU
Brussels - National
BCN
Barcelona Intl.
$123 Roundtrip, found 4 hours ago
$123
Roundtrip
found 4 hours ago
Select Brussels Airlines flight, departing Sun, Apr 19 from Brussels - National to Barcelona Intl., returning Tue, Apr 21, priced at $123 found 4 hours ago
Fri, Dec 5 - Sun, Dec 7
BRU
Brussels - National
BCN
Barcelona Intl.
$123 Roundtrip, found 3 days ago
$123
Roundtrip
found 3 days ago
Select Brussels Airlines flight, departing Fri, Dec 5 from Brussels - National to Barcelona Intl., returning Sun, Dec 7, priced at $123 found 3 days ago
Tue, Sep 2 - Thu, Sep 4
BRU
Brussels - National
BCN
Barcelona Intl.
$136 Roundtrip, found 1 day ago
$136
Roundtrip
found 1 day ago
Select Brussels Airlines flight, departing Tue, Sep 2 from Brussels - National to Barcelona Intl., returning Thu, Sep 4, priced at $136 found 1 day ago
Thu, Aug 28 - Sun, Aug 31
BRU
Brussels - National
BCN
Barcelona Intl.
$155 Roundtrip, found 14 hours ago
$155
Roundtrip
found 14 hours ago
Select Brussels Airlines flight, departing Thu, Aug 28 from Brussels - National to Barcelona Intl., returning Sun, Aug 31, priced at $155 found 14 hours ago

Frequently asked questions

What route does flight number SN3705 take?
SN3705 flies non-stop from Brussels Airport to Barcelona Airport (BCN-Barcelona Intl.). During this trip, you can expect to be in the air for around 2 hours. Consider booking ahead to lock in your preferred seat.
What kind of plane is on flight number SN3705?
The Airbus A320 is the aircraft model most often used for flight SN3705. This flight typically jets off from Brussels Airport (BRU-Brussels - National) and arrives at Josep Tarradellas Barcelona--El Prat Airport.
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 SN3705 flight with Travelocity, please visit our Customer Service Portal.