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Cheap flights from Chiang Mai to San Francisco International

Compare Chiang Mai to San Francisco International flight deals

Find the cheapest month or even day of the year to fly to San Francisco International

Book the best San Francisco International fare with no extra fees

Flight deals from Chiang Mai to San Francisco International

Looking for a cheap last-minute deal or the best return flight from Chiang Mai to San Francisco International? Find the lowest prices on one-way and return tickets right here.
San Francisco.P41,488 per passenger.Departing Tue, 2 Sep, returning Thu, 2 Oct.Return flight with Thai AirAsia and Flair Airlines.Outbound indirect flight with Thai AirAsia, departs from Chiang Mai on Tue, 2 Sep, arriving in San Francisco International.Inbound indirect flight with Flair Airlines, departs from San Francisco International on Thu, 2 Oct, arriving in Chiang Mai.Price includes taxes and charges.From P41,488, select.
San Francisco.P44,159 per passenger.Departing Tue, 2 Sep, returning Fri, 26 Sep.Return flight with Thai AirAsia and China Southern.Outbound indirect flight with Thai AirAsia, departs from Chiang Mai on Tue, 2 Sep, arriving in San Francisco International.Inbound indirect flight with China Southern, departs from San Francisco International on Fri, 26 Sep, arriving in Chiang Mai.Price includes taxes and charges.From P44,159, select.
San Francisco.P45,525 per passenger.Departing Fri, 19 Dec, returning Sun, 4 Jan.Return flight with China Airlines.Outbound indirect flight with China Airlines, departs from Chiang Mai on Fri, 19 Dec, arriving in San Francisco International.Inbound indirect flight with China Airlines, departs from San Francisco International on Sun, 4 Jan, arriving in Chiang Mai.Price includes taxes and charges.From P45,525, select.
San Francisco.P45,610 per passenger.Departing Sat, 11 Apr, returning Thu, 30 Apr.Return flight with China Airlines.Outbound indirect flight with China Airlines, departs from Chiang Mai on Sat, 11 Apr, arriving in San Francisco International.Inbound indirect flight with China Airlines, departs from San Francisco International on Thu, 30 Apr, arriving in Chiang Mai.Price includes taxes and charges.From P45,610, select.
San Francisco.P49,746 per passenger.Departing Fri, 28 Nov, returning Sun, 7 Dec.Return flight with Korean Air.Outbound indirect flight with Korean Air, departs from Chiang Mai on Fri, 28 Nov, arriving in San Francisco International.Inbound indirect flight with Korean Air, departs from San Francisco International on Sun, 7 Dec, arriving in Chiang Mai.Price includes taxes and charges.From P49,746, select.
San Francisco.P49,797 per passenger.Departing Mon, 10 Nov, returning Mon, 17 Nov.Return flight with Korean Air.Outbound indirect flight with Korean Air, departs from Chiang Mai on Mon, 10 Nov, arriving in San Francisco International.Inbound indirect flight with Korean Air, departs from San Francisco International on Mon, 17 Nov, arriving in Chiang Mai.Price includes taxes and charges.From P49,797, select.
San Francisco.P56,967 per passenger.Departing Wed, 1 Oct, returning Wed, 8 Oct.Return flight with EVA Air.Outbound indirect flight with EVA Air, departs from Chiang Mai on Wed, 1 Oct, arriving in San Francisco International.Inbound indirect flight with EVA Air, departs from San Francisco International on Wed, 8 Oct, arriving in Chiang Mai.Price includes taxes and charges.From P56,967, select.
San Francisco.P59,777 per passenger.Departing Mon, 8 Dec, returning Mon, 15 Dec.Return flight with China Airlines.Outbound indirect flight with China Airlines, departs from Chiang Mai on Mon, 8 Dec, arriving in San Francisco International.Inbound indirect flight with China Airlines, departs from San Francisco International on Mon, 15 Dec, arriving in Chiang Mai.Price includes taxes and charges.From P59,777, select.

Find the cheapest month to fly from Chiang Mai to San Francisco International

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Chiang Mai to San Francisco International flights are currently cheapest in September.
Aug
from P152,567
Sep
from P44,159
Oct
from P56,967
Nov
from P49,797
Dec
from P59,777
Jan
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Feb
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Mar
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Apr
from P45,610
May
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Jun
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Jul
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Chiang Mai to San Francisco International: Alternative routes

Compare routes from Chiang Mai to San Francisco below. You may find an airport to fly into that's cheaper, faster, or easier than San Francisco International.

Chiang Mai to San Francisco: Flight information

The things to know before you go.
Cheapest flight foundP41,488
Cheapest month to flySeptember

Finding cheap flights from Chiang Mai to San Francisco International: Frequently asked questions

The best price we found for a return flight from Chiang Mai to San Francisco International is P41,488. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
Currently, there are no airlines that fly direct from Chiang Mai to San Francisco International. But we found flights with one or more stops from P41,488.
As of August 2025, there are no flights flying from Chiang Mai to San Francisco International.
The cheapest month to fly from Chiang Mai to San Francisco International is usually September.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Chiang Mai Airport to San Francisco International Airport on Tuesday, 2 September 2025.
No airlines currently offer direct flights between Chiang Mai Airport and San Francisco International Airport. Most routes have one or more stops.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to San Francisco International but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to San Francisco is around 40 days in advance, so don’t leave your flight to the last minute.
Currently, Thai AirAsia offers the cheapest flight tickets to San Francisco International.

Flying from Chiang Mai International Airport (CNX) to San Francisco International Airport (SFO): what you need to know

  • The timezone in San Francisco is UTC-7, which is 14 hours behind Chiang Mai.

  • Your CNX to SFO flight won't wait if you're running late, so don't forget to check in on time. Arrive up to one hour in advance for domestic flights and two hours ahead for international travel.

  • Flying during a peak time like August? School holidays and other popular periods can result in longer queues at security. Be extra cautious and arrive up to four hours ahead of an international flight and two hours before domestic departures.

  • Think about adding a stopover when booking your ticket from Chiang Mai International Airport to San Francisco International Airport. Just uncheck 'Direct flights only' to break up your trip, or even explore someplace new along the way. Here are some options between CNX and SFO:

    • Hong Kong International Airport

    • Taiwan Taoyuan International Airport

    • Shanghai Pudong International Airport

How to find the cheapest flights from Chiang Mai International Airport (CNX) to San Francisco International Airport (SFO)

  • Currently, P22,550 is the lowest price we've found for a one-way Chiang Mai International Airport to San Francisco International Airport flight. The best price for a return plane ticket is P41,488. Bear in mind that fares may change due to demand at the time of booking.

  • Don't leave things to the last minute. You're more likely to get cheap tickets from CNX to SFO if you book ahead. Airlines often offer some terrific early bird deals.

  • The 'Whole month' search tool shows you the cheapest flights from Chiang Mai International Airport to San Francisco International Airport across the month. It's a good way to find a bargain if your travel plans are flexible.

  • You won't have to check back in every day to see if fares have gone down when you create a Price Alert. We'll update you the moment there's a change in price on cheap flights from CNX to SFO.

  • Tailor your flights with filters. Select your ideal arrival and departure times, total journey duration and airlines. You can also sort the results by 'Best,' 'Cheapest' or 'Fastest' flights from Chiang Mai International Airport to San Francisco International Airport.

Handy information about Chiang Mai International Airport (CNX)

  • 76.37% of flights leaving from Chiang Mai International Airport touch down at their destination on schedule.

  • To get to Chiang Mai International Airport from central Chiang Mai, it takes about 10 minutes by car. Of course, this depends on traffic. It's approximately 5 kilometres from the airport to the city centre.

  • Planning to catch public transport? Expect a trip time of around 25 minutes.

  • Need a handy hotel near CNX? If you're boarding an early flight from Chiang Mai International Airport to San Francisco International Airport, these stays will put you moments from your departure gate:

Arriving at San Francisco International Airport (SFO)

Getting from San Francisco International Airport (SFO) to central San Francisco

  • San Francisco International Airport to central San Francisco has a drive time of about 20 minutes. It's approximately 21 kilometres away.

  • Getting there by public transport takes around 45 minutes.

When to fly to San Francisco International Airport (SFO)

  • The quietest month for a flight from Chiang Mai International Airport to San Francisco International Airport is February, while August is the most popular. Pick the ideal time to go to San Francisco based on whether you prefer a faster pace or a more relaxed vibe.

  • Book your flight from Chiang Mai International Airport to San Francisco International Airport for September if you want to explore San Francisco during its warmest month. Expect temperatures of between 12ºC (54ºF) and 22ºC (72ºF).

  • Search for cheap tickets from CNX to SFO in January if you'd rather travel during cooler conditions. Temperatures are at their lowest then, ranging between 6ºC (43ºF) and 16ºC (61ºF) on average.

Explore more of United States

  • San Jose is just one of the many places in United States waiting to be discovered once you've seen the sights of San Francisco. Around 64 kilometres away to the south-east, popular attractions include Winchester Mystery House, Rosicrucian Egyptian Museum and San Jose Museum of Art.

  • Around 257 kilometres south-east of San Francisco, Fresno is another favourite stop in United States. Experience the best of this destination with a visit to Forestiere Underground Gardens, Fresno Chaffee Zoo and Shinzen Japanese Garden.

Plan the rest of your trip from Chiang Mai to San Francisco

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.