Brussels Airlines Flight 3815 Information - Cheap flights from $129

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Brussels Airlines Flight 3815 Route Deals From $129

The cheapest prices found with in the last 7 days for return flights were $180 and $129 for one-way flights to Humberto Delgado for the period specified. Prices and availability are subject to change. Additional terms apply.

Sat, Feb 28 - Sat, Mar 7

BRU

Brussels - National

LIS

Humberto Delgado

$180

Roundtrip

found 3 hours ago

Sat, Feb 7 - Sun, Feb 8

BRU

Brussels - National

LIS

Humberto Delgado

$194

Roundtrip

found 4 hours ago

Thu, Feb 12 - Mon, Feb 16

BRU

Brussels - National

LIS

Humberto Delgado

$226

Roundtrip

found 2 days ago

Frequently asked questions

What route does flight number SN3815 take?

SN3815 flies straight from Brussels Airport (BRU-Brussels - National) to Humberto Delgado Airport (LIS). During this trip, you'll be in the air for approximately 2 hours and 50 minutes. It pays to book ahead to lock in your preferred seat.

What kind of plane is on flight number SN3815?

The route for flight number SN3815 is almost always Brussels - National Airport (BRU) to Lisbon Airport, and the Airbus A320 is the aircraft model you'll probably be traveling on.

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 SN3815 flight with Travelocity, please visit our Customer Service Portal.

Brussels Airlines Flight 3815 Deals & Information (2025/2026)

Travelers

Brussels Airlines Flight 3815 Route Deals From $129

Frequently asked questions

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