Brussels Airlines Flight FR3705 Deals & Information (2025/2026)

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Brussels Airlines Flight 3705 Route Deals From $96

The cheapest prices found with in the last 7 days for return flights were $141 and $96 for one-way flights to Barcelona Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Mon, Sep 1 - Wed, Sep 3
BRU
Brussels - National
BCN
Barcelona Intl.
$141 Roundtrip, found 5 days ago
$141
Roundtrip
found 5 days ago
Select Brussels Airlines flight, departing Mon, Sep 1 from Brussels - National to Barcelona Intl., returning Wed, Sep 3, priced at $141 found 5 days ago
Wed, Jan 7 - Tue, Jan 13
BRU
Brussels - National
BCN
Barcelona Intl.
$146 Roundtrip, found 6 days ago
$146
Roundtrip
found 6 days ago
Select Brussels Airlines flight, departing Wed, Jan 7 from Brussels - National to Barcelona Intl., returning Tue, Jan 13, priced at $146 found 6 days ago
Mon, Sep 1 - Wed, Sep 3
BRU
Brussels - National
BCN
Barcelona Intl.
$154 Roundtrip, found 5 days ago
$154
Roundtrip
found 5 days ago
Select Brussels Airlines flight, departing Mon, Sep 1 from Brussels - National to Barcelona Intl., returning Wed, Sep 3, priced at $154 found 5 days ago
Mon, Sep 1 - Wed, Sep 17
BRU
Brussels - National
BCN
Barcelona Intl.
$159 Roundtrip, found 17 hours ago
$159
Roundtrip
found 17 hours ago
Select Brussels Airlines flight, departing Mon, Sep 1 from Brussels - National to Barcelona Intl., returning Wed, Sep 17, priced at $159 found 17 hours ago
Sun, Oct 12 - Tue, Oct 14
BRU
Brussels - National
BCN
Barcelona Intl.
$160 Roundtrip, found 2 days ago
$160
Roundtrip
found 2 days ago
Select Brussels Airlines flight, departing Sun, Oct 12 from Brussels - National to Barcelona Intl., returning Tue, Oct 14, priced at $160 found 2 days ago
Mon, Sep 1 - Wed, Sep 3
BRU
Brussels - National
BCN
Barcelona Intl.
$163 Roundtrip, found 5 days ago
$163
Roundtrip
found 5 days ago
Select Brussels Airlines flight, departing Mon, Sep 1 from Brussels - National to Barcelona Intl., returning Wed, Sep 3, priced at $163 found 5 days ago
Mon, Sep 1 - Wed, Sep 3
BRU
Brussels - National
BCN
Barcelona Intl.
$165 Roundtrip, found 5 days ago
$165
Roundtrip
found 5 days ago
Select Brussels Airlines flight, departing Mon, Sep 1 from Brussels - National to Barcelona Intl., returning Wed, Sep 3, priced at $165 found 5 days ago
Sat, Sep 20 - Wed, Sep 24
BRU
Brussels - National
BCN
Barcelona Intl.
$179 Roundtrip, found 15 hours ago
$179
Roundtrip
found 15 hours ago
Select Brussels Airlines flight, departing Sat, Sep 20 from Brussels - National to Barcelona Intl., returning Wed, Sep 24, priced at $179 found 15 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.