Reference data only — not for flight planning or navigation. Verify with official sources (AIP, NOTAMs, ATC). Full disclaimer
Boisvert & Fils Seaplane Base (CSA4) — Montréal, Canada
Boisvert & Fils Seaplane Base (CSA4) serves Montréal, Canada.
This information may contain errors or be outdated. Create a free account to suggest corrections and earn points.
40%
Data Complete
21 of 52 points
Missing: Runways, Operations, Fuel, Contacts
Section Breakdown
Basic Info
6/7
Runways
0/4
Frequencies
1/4
Operations
0/2
Fuel
0/1
Contacts
0/2
Additional Info
2/10
Data last updated:
Help keep this data accurate!
See a next to a field? Click it to confirm the info is still correct. Recently verified Outdated — please verify
See a next to a field? Click it to confirm the info is still correct. Recently verified Outdated — please verify
Basic Airport Information
- ICAO: CSA4
- Name: Boisvert & Fils Seaplane Base
- Type: seaplane_base
- Category: Private
- Latitude: 45.645599
- Longitude: -73.596901
- Elevation: N/A ft
- Country: Canada
- Municipality: Montréal
- IATA Code: N/A
- FAA Code: N/A
- FIR: N/A
- Timezone: America/Toronto
- Distance from City: N/A km
- VFR: Yes
- IFR: No
Runways
No data available
Frequencies
- Tower: N/A
- Ground: N/A
- Operations: 123.200 MHz
- Traffic/Approach: N/A
- ATIS: N/A
Operation Hours
Monday
N/A
Tuesday
N/A
Wednesday
N/A
Thursday
N/A
Friday
N/A
Saturday
N/A
Sunday
N/A
- Extra Hours On Request: Not recorded
- Remarks: N/A
Contacts
- AIS Tel: N/A
- ARO Tel: N/A
- MET Tel: N/A
- Admin Tel: N/A
- Health Tel: N/A
- Police Tel: N/A
- Authorities Tel: N/A
- Website: N/A
- Remarks: N/A
Slots / PPR
- Slot Required: Not recorded
- PPR Required: Not recorded
- PPR Contact: N/A
- Remarks: N/A
Immigration
- Port of Entry: Not recorded
- APIS Required: Not recorded
- GAR Required: Not recorded
- Remarks: N/A
Airport Services
No services listed for this airport yet.
Are you a service provider? Register here to appear in this airport's listing.
Canada Permit Requirements
Fast
Landing: 1d
- Overflight Permit: No
- Landing Permit: Conditional
- Overflight Lead Time: N/A
- Landing Lead Time: 2-4 weeks (Non-Scheduled International Licence for charter); 2-48 hours advance for CANPASS reporting
Private / GA Operations:
No permits for private flights. CANPASS or eDeclaration required for customs clearance.
Active NOTAMs
K3104/26
warning
Aerodrome restriction
CSA4 MONTREAL/BOISVERT AND FILS (WATER)
AMEND PUBLICATIONS: OPR: TEL TO READ: 514-820-2089
2026-09-03 18:33 UTC
No end time given (PERM)
Received 2026-09-03 23:50 UTC
V1396/26
info
CSA4 MONTREAL/BOISVERT AND FILS (WATER)
OBST LGT U/S TOWER 453900N 0734252W (APRX 4.9NM WNW AD) 420FT
AGL, 580FT AMSL.
2026-10-23 05:50 UTC
2026-12-23 13:00 UTC
V1188/26
info
CSA4 MONTREAL/BOISVERT AND FILS (WATER)
OBST LGT U/S TOWER 454041N 0734143W (APRX 4.6NM NW AD) 164FT AGL,
236FT AMSL.
2026-09-16 17:35 UTC
2026-12-15 23:59 UTC
Checked with NAV CANADA at 2026-10-28 07:15 UTC.
View all NOTAMs on Map
Nearby Airports
Airport History
No milestones recorded for Boisvert & Fils Seaplane Base yet. Know when it opened, who built it or a notable event? Add it with a source.
Add a historical factFrequently Asked Questions
- Does CSA4 require landing permits?
- It depends on the flight. No permits for private flights. CANPASS or eDeclaration required for customs clearance. Permit details for Canada
- Where is CSA4 located?
- Boisvert & Fils Seaplane Base (CSA4) is located in Montréal, Canada.