# Thorne Bay Seaplane Base (KTB / KTB)

**Thorne Bay Seaplane Base** (IATA: KTB, FAA: KTB) is a seaplane base in Thorne Bay, Alaska, United States. It opened in Apr 1970. It has one runway, 5,000 ft (1,524 m) long, water. In 2025 it handled 362 passengers.

Web page: https://dromopedia.com/airports/ktb

## At a glance

- IATA / ICAO: KTB / —
- FAA: KTB
- Type: Seaplane base
- Serves: Thorne Bay, Alaska, United States
- Opened: Apr 1970
- Elevation: 0 ft / 0 m
- Coordinates: 55.6828, -132.5329
- Runways: 1
- Longest runway: 5,000 ft / 1,524 m
- Passengers: 362 (2025)
- Time zone: UTC-9/-8 · America/Sitka
- Wikipedia: https://en.wikipedia.org/wiki/Thorne_Bay_Seaplane_Base (5 languages)
- Wikidata: https://www.wikidata.org/wiki/Q4461161
- Weather station: PAKW
- Ident: KTB

## Timeline

- Apr 1970: Thorne Bay Seaplane Base opens.

## Runways

| Ident | Length | Width | Surface | True headings | Lighted |
| --- | --- | --- | --- | --- | --- |
| NW/SE | 5,000 ft / 1,524 m | 2,000 ft / 610 m | Water |  |  |

## Passengers per year

| Year | Passengers | Source |
| --- | --- | --- |
| 2015 | 5,582 | BTS T-100 Segment |
| 2016 | 5,556 | BTS T-100 Segment |
| 2017 | 4,641 | BTS T-100 Segment |
| 2018 | 4,650 | BTS T-100 Segment |
| 2019 | 4,159 | BTS T-100 Segment |
| 2020 | 611 | BTS T-100 Segment |
| 2021 | 808 | BTS T-100 Segment |
| 2022 | 560 | BTS T-100 Segment |
| 2023 | 538 | BTS T-100 Segment |
| 2024 | 544 | BTS T-100 Segment |
| 2025 | 362 | BTS T-100 Segment |

## Routes

1 destination in 1 country. From the airport's Wikipedia article.

### Year-round (1)

- [WFB](https://dromopedia.com/airports/5ke.md) Ketchikan Harbor Seaplane Base · United States · 40 mi / 65 km · Pacific Airways, Inc., Promech Air, Taquan Air

## Airlines

The figure is how many destinations each airline flies from KTB, as the routes above have them. Hubs from Wikidata.

### Passenger (3)

- Pacific Airways, Inc. · 1
- Promech Air · 1
- K3 [Taquan Air](https://dromopedia.com/airlines/taquan-air) · 1

## Nearby airports

- [KLW](https://dromopedia.com/airports/pakw.md) Klawock Airport · 22 mi / 36 km
- [KTN](https://dromopedia.com/airports/pakt.md) Ketchikan International Airport · 39 mi / 63 km
- [WRG](https://dromopedia.com/airports/pawg.md) Wrangell Airport · 56 mi / 90 km
- [ANN](https://dromopedia.com/airports/pant.md) Annette Island Airport · 58 mi / 94 km
- [PSG](https://dromopedia.com/airports/papg.md) Petersburg James A Johnson Airport · 79 mi / 127 km

## In collections

- [Water runways](https://dromopedia.com/collections/water-runways) #75

## Sources

- [BTS T-100 Segment](https://www.transtats.bts.gov/Tables.asp?QO_VQ=EEE&QO_anzr=Nv4%20Pn44vr45): US traffic: Bureau of Transportation Statistics, T-100 Segment (Public Domain (US Government))
- [FAA NASR](https://www.faa.gov/air_traffic/flight_info/aeronav/aero_data/NASR_Subscription/): US airport data: FAA National Airspace System Resources (Public Domain (US Government))
- [NOAA Aviation Weather Center](https://aviationweather.gov/data/api/): Weather data: NOAA Aviation Weather Center (Public Domain (US Government))
- [OurAirports](https://ourairports.com/data/): Airport data from OurAirports (Public Domain)
- [Wikidata](https://www.wikidata.org): Structured data from Wikidata (CC0 1.0)
- [Wikipedia: “Thorne Bay Seaplane Base”](https://en.wikipedia.org/w/index.php?title=Thorne_Bay_Seaplane_Base&oldid=1363082852), revision of 7 Jul 2026 (CC BY-SA 4.0)
- [timezone-boundary-builder](https://github.com/evansiroky/timezone-boundary-builder): Time zone boundaries © OpenStreetMap contributors, timezone-boundary-builder (ODbL 1.0)
- Every figure with its source: https://dromopedia.com/airports/ktb/data