Airport information
- FAA LID
- CT21
- Coordinates
- 41.4606, -71.8300
- Elevation
- 213 ft MSL
- Sectional chart
- NEW YORK
- Airport use
- Private
- Control tower
- No
- ARTCC
- BOSTON (ZBW)
- Flight service (FSS)
- BRIDGEPORT
- Segmented circle
- No
- Activated
- 2025/04
- Distance from city
- 3 ENE
Weather
METAR observed
Loading current weather…
TAF forecast
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Sun & FAA night 2026-06-21
| Event | Local (EDT) | UTC |
|---|---|---|
| Morning civil twilight Loggable night ends | 04:40 AM | 08:40Z |
| Sunrise | 05:14 AM | 09:14Z |
| Sunset | 08:24 PM | 00:24Z |
| Evening civil twilight Loggable night begins | 08:58 PM | 00:58Z |
Plan a flight from CT21
Traffic pattern
- Landing
- Rwy 1
- Pattern
- left (turns left)
- TPA
- 1,200 ft MSL (≈1,000 AGL)
Enter the left downwind for Rwy 1 at 1,200 ft MSL (≈1,000 AGL) on a 45°. TPA estimated at 1,000 ft AGL (not charted for this field).
Runway 1/19
2,004 ft × 50 ft · Dirt- Heading
- n/a
- Heading
- n/a
Headings shown are true (magnetic variation unavailable).
| Runway | Length | Your margin |
|---|---|---|
| 1/19 | 2,004 ft |
Nearby navigation aids
| NavAid | Type | Freq | Radial / Dist magnetic |
|---|---|---|---|
| ORW · Norwich | VOR-DME | 110.00 | r141° / 9.5 NM |
| GON · Groton | VOR-DME | 110.85 | r066° / 12.7 NM |
| SEY · Sandy Point | VOR-DME | 117.80 | r342° / 21 NM |
| PVD · Providence | VORTAC | 115.60 | r243° / 24 NM |
| PUT · Putnam | VOR-DME | 117.40 | r193° / 29.7 NM |
| HFD · Hartford | VOR-DME | 114.90 | r121° / 34 NM |
| HTO · Hampton | VORTAC | 113.60 | r047° / 39.3 NM |
VFR sectional
No published instrument procedures or Chart Supplement for CT21. VFR sectional link above.
Ownership & management
Remarks FAA
- DAY VFR ONLY.
Nearby airports
Weather is live from the Aviation Weather Center; airport facility data is from the FAA NASR (28-day cycle). For planning and education only; always verify against official sources. Open CT21 in a full tool: METAR/TAF decoder, crosswind calculator, sun & night times, or the density altitude calculator. Planning from here? Find the nearest airport with fuel or an approach, or check whether an IFR alternate is required.
About CT21
Sunnyvale Field (CT21) is an airport in North Stonington, CT, at 213 ft MSL. It has 1 runway, the longest 2,004 ft, with no control tower (pilot-controlled). This page shows live METAR/TAF weather, runway crosswinds, frequencies, navaids, and FAA charts for CT21, refreshed from the Aviation Weather Center and FAA NASR.
Does CT21 have a control tower?
No. Sunnyvale Field is a non-towered (pilot-controlled) airport; use the published CTAF/UNICOM on the Comms & NavAids tab.
What is the longest runway at CT21?
Sunnyvale Field has 1 runway; the longest is 2,004 ft. See the Runways tab for headings, surface, and lighting.
Where is CT21?
Sunnyvale Field is in North Stonington, CT, at an elevation of 213 ft MSL. Coordinates: 41.4606, -71.8300.
Fly out of CT21 often?
Save CT21 as your home base in the SkyReady app for a one-tap Go/No-Go readiness brief, weather alerts, and automatic FAA currency — free to log.