CYM · · Chatham Seaplane Base

Chatham Seaplane Base (CYM)

Chatham, United States · seaplane base · 57.515° -134.946° ·
Airport Information
IATA CodeCYM
ICAO Code
Typeseaplane base
NameChatham Seaplane Base
MunicipalityChatham
CountryUnited States
ContinentNA
Latitude57.515° N
Longitude-134.946° W
ElevationN/A
Climate ZoneTemperate
Scheduled ServiceYes
Score25
Local TimeLoading...
Country & Timezone Info
CountryUnited States
ISO Code
RegionChatham
Continent CodeNA
IANA TimezoneAmerica/New_York
UTC Offset (Standard)UTC-5
DST OffsetUTC-4
Current Offset--

🌬 Best Time to Fly

Recommended: May – September
Pleasant temperatures across most regions
Loading season...
Spring: Mar–MaySummer: Jun–AugAutumn: Sep–NovWinter: Dec–Feb

✈ Airlines Serving CYM

AA — American AirlinesDL — Delta Air LinesUA — United AirlinesWN — Southwest AirlinesAS — Alaska AirlinesB6 — JetBlueAC — Air Canada

🌡 Climate — Temperate (57.5°N)

Jan
Feb
10°
Mar
13°
Apr
17°
May
21°
11°
Jun
26°
15°
Jul
28°
17°
Aug
27°
16°
Sep
23°
13°
Oct
18°
Nov
12°
Dec
* Approximate average temperatures by month based on temperate latitude zone

AI-Enhanced Insights

Chatham Seaplane Base (CYM) is a small seaplane facility serving the remote community of Chatham on the northern tip of the Chilkat Peninsula in southeastern Alaska, along Lynn Canal. It provides essential access for residents and visitors traveling to this isolated coastal area, which lacks road connections to larger regional hubs. The base primarily supports float-equipped aircraft connecting Chatham to Juneau, Haines, and other Southeast Alaska communities.

💡 Local Tip
Bring waterproof bags for your gear when flying into Chatham, as you'll transfer directly from the seaplane to a dock in an area known for frequent rain and marine weather.
🚖 Getting There

Since Chatham has no road access, seaplane service is essentially the primary means of reaching the community. Travelers typically fly in from Juneau, which is the nearest major hub with both road and ferry connections to the wider Alaska and Pacific Northwest transportation network. Schedule flights well in advance, as service to such remote locations is limited and weather-dependent.

❓ Frequently Asked Questions
Q: What type of aircraft use Chatham Seaplane Base?
A: Float-equipped seaplanes are the primary aircraft type, as the facility operates on water rather than a conventional runway.

Q: Are there road connections to Chatham?
A: No, Chatham is not connected to the mainland road system, making seaplane service a critical transportation link for the community.

Q: Can visitors walk on from a seaplane flight?
A: Chatham is a very small community with limited services; most travelers use the seaplane base as a transit point or for outdoor recreation access in the surrounding Tongass National Forest.

Q: Is the base open year-round?
A: Operations depend on weather and ice-free water conditions; the facility is generally usable during ice-free months.
AI-generated content · Generated Jun 28, 2026 · MiniMax-M3

🗺 Location Map

🌏 Nearby Airports (Top 5)

IATANameCity / CountryDistance (km)Distance (mi)Link
FAK False Island Seaplane Base False Island, United States 16.1 km 10.0 mi View →
AGN Angoon Seaplane Base Angoon, United States 22.7 km 14.1 mi View →
TKE Tenakee Seaplane Base Tenakee Springs, United States 33.6 km 20.9 mi View →
BNF Baranof Warm Springs Float and Seaplane Base Baranof, United States 47.9 km 29.7 mi View →
SIT Sitka Rocky Gutierrez Airport Sitka, United States 57.7 km 35.9 mi View →

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