20 public-use fields

Connecticut Airport Density Altitude

Connecticut has 20 public-use airports, and none of them typically exceed 5,000 ft of density altitude even on a summer afternoon — heat still trims performance, but the climate keeps typical density altitudes low.

Every field, worst typical afternoon first

Field elevation from FAA NASR · worst typical afternoon of each field's hottest month from NOAA 1991–2020 normals at the nearest station · standard pressure, dry air
Airport City Field elev Worst typical afternoon DA Month
KOXC — Waterbury-Oxford Oxford 730 ft 2,564 ft July
N41 — Mount Tobe Waterbury 850 ft 2,512 ft July
C44 — Toutant Putnam 770 ft 2,359 ft July
KSNC — Chester Chester 416 ft 2,168 ft July
KDXR — Danbury Municipal Danbury 457 ft 2,076 ft July
11N — Candlelight Farms New Milford 675 ft 2,062 ft July
9B8 — Salmon River Airfield Marlborough 540 ft 2,059 ft July
7B9 — Ellington Ellington 253 ft 2,001 ft July
4B9 — Simsbury Simsbury 195 ft 1,930 ft July
KBDL — Bradley International Windsor Locks 173 ft 1,903 ft July
4B8 — Robertson Field Plainville 202 ft 1,864 ft July
KIJD — Windham Willimantic 246 ft 1,843 ft July
7B6 — Skylark Airpark Warehouse Point 120 ft 1,838 ft July
KLZD — Danielson Danielson 238 ft 1,777 ft July
KMMK — Meriden Markham Municipal Meriden 103 ft 1,743 ft July
KHFD — Hartford-Brainard Hartford 18 ft 1,676 ft July
42B — Goodspeed East Haddam 9 ft 1,634 ft July
KBDR — Bridgeport/Sikorsky Bridgeport 9 ft 1,591 ft July
KHVN — Tweed/New Haven New Haven 13 ft 1,515 ft July
KGON — Groton-New London Groton (New London) 9 ft 1,366 ft July

▲ above 5,000 ft · ⚠ above 8,000 ft on a typical afternoon of the airport's hottest month. Open any field for its monthly table and a pre-filled calculator.

Frequently asked questions

Which Connecticut airport has the highest density altitude in summer?

Waterbury-Oxford (KOXC) tops the list: from 730 ft of field elevation, a typical summer afternoon reaches about 2,564 ft of density altitude. Each airport's page carries its full monthly table.

What is the highest airport in Connecticut?

Mount Tobe (N41) at 850 ft MSL, per the FAA airport record. Elevation is the biggest single term in density altitude — the summer heat gets added on top of it.