Chiang Mai airport noise and flight paths

Chiang Mai's airport is unusually close to town. The official listing puts it 4 km southwest of the city, and planes climb out right over some of the most popular places to live. If you're choosing a condo or a guesthouse, it's worth knowing where the planes actually go, because two streets can sound very different.

This guide covers the runway and the flight paths, which way planes usually fly, the night rules, and which areas hear the most. There's a map and a checker below: type an address, or tap the map, and you'll get a rough idea of how loud a passing plane is there.

The short version

Planes usually take off to the north, over Nimman, Huay Kaew and the Convention Centre area, and land from the south, over Mae Hia. When the wind turns, it flips.

Loudest

Right off the north end of the runway: the Nimman Noradee and Suthep side, Nimman itself and the Huay Kaew road area. And off the south end, around Mae Hia.

Quietest

East of the Ping River, San Sai, San Kamphaeng and anywhere a few kilometres east or west of the runway line.

Night

The airport has run 24 hours since November 2023, but scheduled flights are capped after midnight and only emergency and medical flights are accepted from 2am to 6am.

The runway and the flight paths

There's one runway, called 18/36. Thailand's official aeronautical publication lists it as 3,400 m long and 45 m wide, pointing exactly north and south (180° and 360° true). The landing threshold for planes arriving from the north is set 300 m in from the north end, so landing planes from that side get 3,100 m. Both ends have lights that guide pilots down a 3° slope, and only the south end, runway 36, has a full instrument landing system.

Because the runway points due north, the line it draws carries straight on in both directions. To the north it runs up the west side of town, over the Suthep road end of Nimman, Huay Kaew and on past the Convention Centre. The Old City is roughly 2 to 3 km east of that line, so it isn't under the path, though you'll still hear planes there. To the south, the line crosses the ring road and heads over Mae Hia towards Hang Dong.

Which way planes fly depends on the wind, since they take off and land into it. A flight tracking site, flightpathnoise.com, reported about 69% of departures going north over the 30 days it showed, and describes departures turning right soon after take-off. Approaches to runway 36 come in from the south over the suburbs. I couldn't find an official breakdown by season, so I'd treat north-flow as the normal pattern and south-flow as something you'll get on a fair share of days.

Noise map and address checker

The shaded bands are my estimate of how loud a single passing jet the size of an A320 or 737 is outdoors, at its loudest moment. Terracotta is very loud, orange is loud and yellow is noticeable. Outside the yellow it's faint or quiet. The dark line is the runway and the dashed lines carry it on north and south. Type an address, condo or landmark into the box, or tap anywhere on the map.

This is an estimate, not an official noise contour. I couldn't find a published noise contour map for Chiang Mai airport, so I built these bands from the runway's real position, a 3° approach, an assumed climb after take-off, and published noise readings for similar planes. Real levels change with the plane, its weight, the wind and the exact track it flies, and buildings, trees and your windows make a big difference indoors. Before you sign a lease, visit at a busy time and listen for yourself.

How I made the estimate

I took the runway threshold positions from the official publication and the north end of the paved runway from OurAirports. For landings I put the plane on a 3° slope, the angle the runway lights are set to, which means about 50 m of height for every kilometre out, or roughly 300 ft per nautical mile in pilot terms. For take-offs I assumed the plane is about 120 m up as it passes the far end of the runway and climbs about 10 m for every 100 m after that. That's my assumption, not a published figure, and heavy long-haul jets climb more slowly. I let the tracks spread out the further they get from the runway, more for departures, which turn, than for arrivals, which line up straight.

For loudness I started from real measurements published by NATS, the UK air traffic service: a descending Boeing 737-400 at 1,400 ft measured 70.7 dBA and an A320 at the same height 64.9 dBA, and a climbing 737-800 at 2,800 ft measured 70.9 dBA. I used about 70 dBA at 1,400 ft for landings and 71 dBA at 2,800 ft for take-offs, and let the level drop by 6 dB every time the distance doubles. That ignores things like the ground soaking up sound, so it probably overstates things a little far from the path.

Very loud, 80 dBA and up

Right under the path close to the runway. You'll stop talking while it passes, and windows can rattle.

Loud, 70 to 80

Clearly loud outdoors. The Chiang Mai noise study I cite below notes that noise over 70 dB can cause discomfort and stress.

Noticeable, 60 to 70

You'll notice most planes, a bit like a busy road for half a minute.

Faint, 50 to 60

You'll hear them outside, but they won't stop a conversation.

Quiet, under 50

Mostly lost in the normal sounds of the city.

Which areas hear it most

These are what my model gives for the middle of each area. Streets on the side nearest the runway line will be louder, and the far side quieter.

Loudest. Nimman comes out loud, around the mid 70s on a normal day, with departures passing roughly 900 to 1,100 ft overhead by my estimate. The Suthep road end, nearest the runway, is the worst. Huay Kaew and the Convention Centre end of the Superhighway are loud too. South of the runway, the villages of Mae Hia right under the approach get landing planes at a few hundred feet. It's no coincidence that most of the complaints I found came from there. See Mae Hia.

Noticeable. Suthep and CMU, Airport and Nong Hoi, Santitham, Wualai and Chang Khlan and the western half of the Old City all land in the low to mid 60s. You'll hear the planes, especially in the morning and evening peaks, but they're not on top of you.

Faint or quiet. Chang Phueak is right at the edge of noticeable. Further east it drops off: Tha Phae and the Night Bazaar, Riverside and Wat Ket, San Kamphaeng Road and San Sai are mostly faint to quiet. Central Hang Dong sits west of the approach line and comes out faint. Planes are high and spread out by the time they reach Mae Rim to the north.

Night flights

Chiang Mai airport used to close from midnight to 6am. Since 1 November 2023 it has been open 24 hours, which the government said was to allow flights that leave after midnight. The airport's official listing now shows air traffic services around the clock.

There are limits, though. The airport's slot rules for winter 2026/27, published by Thailand's Civil Aviation Authority, say that to reduce noise for the community, only 4 flights are allowed between midnight and 1am, 2 flights between 1am and 2am, and between 2am and 6am only emergency and medical flights are accepted (the document gives these in UTC, which is 7 hours behind Chiang Mai). So the deep night is mostly quiet, but a late departure around midnight is normal.

One more local quirk: around Yi Peng and Loy Krathong the schedule bunches up. In 2026 airlines were asked not to fly from 7pm to 1am on 24 and 25 November because of the lanterns, which squeezes the day's flights into fewer hours.

Complaints and measurements

People near the airport have complained for years. In 2008 residents of the Nimman Noradee village in Mae Hia, beside the runway, told a meeting with the airport that Chiang Mai University engineers had measured 24-hour averages of 73.5, 77.5 and 67.8 dBA at three points in the village, against a standard of 70. The Pollution Control Department's own readings came out lower, at 63.1 to 64.2. Residents also said vibration had cracked roof tiles, MGR Online reported.

When the airport went 24 hours in 2023, Thai PBS reported that the headman of a Mae Hia village said some roofs had cracked from low-flying aircraft, a resident worried older people would sleep worse, and someone from the Nimman Noradee community worried about emissions. The Pollution Control Department said it had asked its Chiang Mai office to monitor noise and air around the airport.

A 2025 study of noise around the airport measured at six points and found most of the surrounding area within standard limits, except near the northern end of the runway, which slightly exceeded the standard. Airports of Thailand says it uses noise abatement procedures and land-use planning at its airports, and requires aircraft at Chiang Mai to meet international noise standards. The official publication lists no specific noise abatement procedures for Chiang Mai.

Will a second airport change this?

Maybe one day, but don't count on it soon. Airports of Thailand has studied a second airport, called Lanna Airport, at Ban Thi in Lamphun, for about 24 million passengers a year at a cost of about 70 billion baht. In 2025 business reports said it was still at the pre-feasibility stage, hadn't gone to the Cabinet, and was held up by land, much of it privately owned. Meanwhile AOT's own November 2025 report describes a plan to build a new international terminal at the current airport and lift it from 8 million to 20 million passengers a year, with completion expected in 2034, still awaiting approval. More passengers at the existing airport most likely means more flights over the same paths.

Tips if noise matters to you

Check the line

Use the checker above. Being a kilometre or two east or west of the runway line matters far more than distance from the airport itself.

Visit at a busy time

Go back in the morning or evening when flights stack up, and listen from the actual room, not the lobby.

Face away

A unit on the side away from the flight path, with good windows, makes a big difference.

Ask about both directions

Ask neighbours how it is when planes take off the other way. Some spots are fine most days and loud on the days the wind flips.

Look up the live traffic

Free flight trackers show where planes are flying right now, which is a good reality check for a specific building.