Discover the historical beauty of Wat Chedi Luang, a prominent temple in Chiang Mai, Thailand. — flights from San Francisco to Chiang Mai
San FranciscoChiang Mai, Thailand

Flights from San Francisco to Chiang Mai

Flying time from San Francisco (SFO) to Chiang Mai (CNX) is about 16h (12,400 km). Lowest fare seen: $401 one-way, 1 stop (12 Oct 2026).

All flights from San Francisco →All flights to Chiang Mai →

Book from $401 one-way

Photo of Chiang Mai: Guillaume Meurice on Pexels.

When you land in Chiang Mai

The airport transfer and the few things worth sorting before you fly.

Discover the historical beauty of Wat Chedi Luang, a prominent temple in Chiang Mai, Thailand. — arriving in Chiang Mai

Airport transfer

CNX → Chiang Mai, booked before you fly

A private driver meets you in arrivals at a price agreed when you book. Book with Welcome Pickups.

See transfer prices
A United Airlines jet soaring over the iconic San Francisco skyline. — lounges at San Francisco AirportSan Francisco Airport · 5 lounges
Before you flyAirport lounges at San Francisco →
Trains, buses and taxi faresCNX to Chiang Mai: getting into town →Early arrival or late flightLuggage storage in Chiang Mai →1 drop-off point

Things to book in Chiang Mai

All 19 things to do in Chiang Mai →
from €27.69
Day Trips from Chiang Mai 4.4 · 12 Tiqets reviews
from €27.69
Doi Inthanon National Park 3.8 · 6 Tiqets reviews
from €39.57
Wat Rong Khun - White Temple 5.0 · 6 Tiqets reviews
Doi Suthepfrom €22.32
Doi Suthep 4.5 · 2 Tiqets reviews

Find hotels in Chiang Mai

Hotels, hostels & more · Trip.com

Search hotels

Airlines flying San Francisco to Chiang Mai

We have not confirmed which airlines fly SFO–CNX nonstop. Search the route to see every carrier selling it today, including connections.

Best time to fly to Chiang Mai

Based on weather and travel conditions in Thailand

Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Best monthsGoodAvoid if possible

The cool, dry season (November–February) is ideal — sunny skies, low humidity, and comfortable temperatures around 25–30°C. The monsoon (May–October) brings heavy rain especially in the south.

Peak season: November – February

More for this trip

Frequently asked questions — San Francisco to Chiang Mai flights

How long is the flight from San Francisco to Chiang Mai?
San Francisco (SFO) and Chiang Mai (CNX) are 12,400 km apart, about 16h of flying time. We have not seen a nonstop fare on this pair, so expect to connect — the cheapest itinerary seen had 1 stop, which adds to the total journey time.
How far is San Francisco from Chiang Mai by air?
The great-circle distance between San Francisco International Airport and Chiang Mai International Airport is 12,400 km (7,705 miles), a ultra long-haul route.
How much does a flight from San Francisco to Chiang Mai cost?
The lowest one-way fare seen recently on SFO–CNX was $401 USD with Korean Air (1 stop), departing 7 Dec 2026, found in fare searches as of 12 Oct 2026. Fares change constantly and depend on the date, so check the current price before booking.
Do I need a visa to travel from San Francisco to Thailand?
It depends on your passport. Some nationalities can enter Thailand visa-free or get a visa on arrival; others must apply in advance. Use AirConnect's Visa Checker to see the rules for your passport.
What is the best time to visit Chiang Mai?
The cool, dry season (November–February) is ideal — sunny skies, low humidity, and comfortable temperatures around 25–30°C. The monsoon (May–October) brings heavy rain especially in the south.

Sources: fares from Travelpayouts flight-search data, seen 12 Oct 2026; airlines from each carrier's published network and nonstop fares on sale; distance from OurAirports coordinates; flight time estimated from distance. Fares change daily.

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