Airports / Alaska / BKF
Lake Brooks Seaplane Base.
Katmai National Park, Alaska · 36 ft elevation. A private-aviation gateway on the Bravo register.
4.8/5
Google rating
312 ratings
0
Operators based
36
Elevation ft
Google rating
Google reviews
Field elevation
Nearest alternate
Field standing
#44 / 225
Alaska airports by Google rating
4.8★ across 312 Google ratings , ranked against 225 rated AK fields.
28 nm
To the nearest alternate
King Salmon Airport (AKN), 3 fields within 50 nm.
Overview
Located in Katmai National Park, Alaska, Lake Brooks Seaplane Base (BKF) operates as a seaplane base. The airport sits 36 feet above sea level. Alongside scheduled airline service, the airport handles a steady flow of private and charter traffic.
No charter operator is headquartered on the field, but operators routinely position aircraft into BKF for departures. When weather or ramp space demands it, nearby options are King Salmon Airport (AKN, 28 nm), South Naknek Number 2 Airport (WSN, 39 nm), and Igiugig Airport (IGG, 46 nm). With a single 5,000-foot unpaved runway, BKF can typically accommodate aircraft as large as turboprops.
Charter pricing from BKF depends on aircraft category, positioning distance, and trip timing. Compare rated operators or run a route through the cost estimator to gauge pricing from Katmai National Park.
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Field capability
ICAO
5Z9
IATA
BKF
FAA / Local
5Z9
Elevation
36 ft
Coordinates
58.5548° N · 155.7770° W
Airspace
G · GolfClass G, GolfUncontrolled field, no tower. Pilots self-announce and sequence themselves on the common traffic advisory frequency.Source: FAA NASR class airspace
Size
Seaplane
Scheduled svc
Yes
Elevation vs AK fields
state range 2–3,318 ft
At 36 ft, BKF sits lower than 74% of the 285 Alaska fields on the register.
Runways & aircraft access
1 runway
longest 5,000 ft
- ALL/WAY5,000 ft × 4000 ftWaterUnlit
Which aircraft can operate here
vs longest runway 5,000 ft
BKF's 5,000 ft runway typically supports charter aircraft up to turboprops.
- Turboprop3,000 ft
- Light Jet3,500 ft
- Midsize Jet4,500 ft
- Super-Midsize Jet5,000 ft
- Heavy Jet5,500 ft
- VIP Airliner6,000 ft
Class minimums are sea-level planning rules of thumb. A specific aircraft's balanced-field length varies with weight, temperature, and field elevation. Confirm performance with the operator.
Access & alternates
Closest alternate fields by great-circle distance, every listing links to its own field brief.
- 28nmAKNKing Salmon AirportKing Salmon
- 39nmWSNSouth Naknek Number 2 AirportSouth Naknek
- 46nmIGGIgiugig AirportIgiugig
- 55nmEGXEgegik AirportEgegik
- 61nmKNKKokhanok AirportKokhanok
- 73nmKYKKarluk AirportKarluk
Location
Open the full map5Z9 · Lake Brooks Seaplane Base · Katmai National Park, AK
Flight times from here
Approximate nonstop block times from BKF on a typical midsize charter jet. Faster classes trim these; add positioning and taxi for the real schedule.
| Destination | Distance | Block time |
|---|---|---|
| Anchorage (ANC) | 235 nm | 57m |
| Seattle (SEA) | 1,361 nm | 3h 34m |
| San Francisco (SFO) | 1,803 nm | 4h 36m |
| Jackson Hole (JAC) | 1,873 nm | 4h 45m |
| Salt Lake City (SLC) | 1,957 nm | 4h 57m |
| Los Angeles (VNY) | 2,079 nm | 5h 14m |
| Las Vegas (LAS) | 2,082 nm | 5h 15m |
| Vail / Eagle (EGE) | 2,164 nm | 5h 26m |
Common questions
- What size private jets can use BKF?
- Lake Brooks Seaplane Base's longest runway is 5,000 ft, which typically supports charter aircraft up to turboprops. Lighter classes (turboprops, light and midsize jets) operate comfortably; confirm exact performance for a specific tail with the operator, since balanced-field length shifts with weight, temperature, and elevation.
- What is the longest runway at BKF?
- Lake Brooks Seaplane Base has one runway; the longest measures 5,000 ft.
- What is the nearest major airport to BKF?
- The closest alternate is King Salmon Airport (AKN), about 28 nm away, followed by South Naknek Number 2 Airport (WSN) at 39 nm. Operators often position aircraft between these fields depending on ramp space and availability.
- How long is a flight from BKF to major cities?
- Typical block times on a midsize jet: Anchorage about 57m (235 nm), Seattle about 3h 34m (1,361 nm), San Francisco about 4h 36m (1,803 nm). Faster classes trim these times; add positioning and taxi for the real schedule.