Cheap Flights from Chiang Mai to San Francisco International from $1,421

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Flight deals from Chiang Mai to San Francisco International

Looking for a cheap last-minute deal or the best return flight from Chiang Mai Airport to San Francisco International Airport? If you want to travel next month, return fares start from $1,466. Find the lowest prices on one-way and return tickets right here.

San Francisco.$1,421 per passenger.Departing Mon, 1 Mar, returning Sun, 7 Mar.Return flight with Korean Air.Outbound indirect flight with Korean Air, departs from Chiang Mai on Mon, 1 Mar, arriving in San Francisco International.Inbound indirect flight with Korean Air, departs from San Francisco International on Sun, 7 Mar, arriving in Chiang Mai.Price includes taxes and charges.From $1,421, select.

San Francisco.$1,421 per passenger.Departing Wed, 24 Feb, returning Wed, 10 Mar.Return flight with Korean Air.Outbound indirect flight with Korean Air, departs from Chiang Mai on Wed, 24 Feb, arriving in San Francisco International.Inbound indirect flight with Korean Air, departs from San Francisco International on Wed, 10 Mar, arriving in Chiang Mai.Price includes taxes and charges.From $1,421, select.

San Francisco.$1,464 per passenger.Departing Thu, 8 Oct, returning Mon, 26 Oct.Return flight with STARLUX Airlines.Outbound indirect flight with STARLUX Airlines, departs from Chiang Mai on Thu, 8 Oct, arriving in San Francisco International.Inbound indirect flight with STARLUX Airlines, departs from San Francisco International on Mon, 26 Oct, arriving in Chiang Mai.Price includes taxes and charges.From $1,464, select.

San Francisco.$1,468 per passenger.Departing Sat, 31 Oct, returning Tue, 5 Jan.Return flight with STARLUX Airlines.Outbound indirect flight with STARLUX Airlines, departs from Chiang Mai on Sat, 31 Oct, arriving in San Francisco International.Inbound indirect flight with STARLUX Airlines, departs from San Francisco International on Tue, 5 Jan, arriving in Chiang Mai.Price includes taxes and charges.From $1,468, select.

San Francisco.$1,572 per passenger.Departing Fri, 2 Apr, returning Fri, 16 Apr.Return flight with EVA Air.Outbound indirect flight with EVA Air, departs from Chiang Mai on Fri, 2 Apr, arriving in San Francisco International.Inbound indirect flight with EVA Air, departs from San Francisco International on Fri, 16 Apr, arriving in Chiang Mai.Price includes taxes and charges.From $1,572, select.

San Francisco.$1,579 per passenger.Departing Mon, 19 Apr, returning Sun, 16 May.Return flight with EVA Air.Outbound indirect flight with EVA Air, departs from Chiang Mai on Mon, 19 Apr, arriving in San Francisco International.Inbound indirect flight with EVA Air, departs from San Francisco International on Sun, 16 May, arriving in Chiang Mai.Price includes taxes and charges.From $1,579, select.

San Francisco.$1,675 per passenger.Departing Wed, 16 Dec, returning Wed, 30 Dec.Return flight with EVA Air.Outbound indirect flight with EVA Air, departs from Chiang Mai on Wed, 16 Dec, arriving in San Francisco International.Inbound indirect flight with EVA Air, departs from San Francisco International on Wed, 30 Dec, arriving in Chiang Mai.Price includes taxes and charges.From $1,675, select.

San Francisco.$1,749 per passenger.Departing Fri, 25 Sep, returning Sat, 3 Oct.Return flight with EVA Air.Outbound indirect flight with EVA Air, departs from Chiang Mai on Fri, 25 Sep, arriving in San Francisco International.Inbound indirect flight with EVA Air, departs from San Francisco International on Sat, 3 Oct, arriving in Chiang Mai.Price includes taxes and charges.From $1,749, select.

San Francisco.$1,797 per passenger.Departing Mon, 26 Oct, returning Mon, 2 Nov.Return flight with Korean Air.Outbound indirect flight with Korean Air, departs from Chiang Mai on Mon, 26 Oct, arriving in San Francisco International.Inbound indirect flight with Korean Air, departs from San Francisco International on Mon, 2 Nov, arriving in Chiang Mai.Price includes taxes and charges.From $1,797, select.

San Francisco.$1,932 per passenger.Departing Sat, 31 Oct, returning Thu, 10 Dec.Return flight with Korean Air and Asiana Airlines.Outbound indirect flight with Korean Air, departs from Chiang Mai on Sat, 31 Oct, arriving in San Francisco International.Inbound indirect flight with Asiana Airlines, departs from San Francisco International on Thu, 10 Dec, arriving in Chiang Mai.Price includes taxes and charges.From $1,932, select.

San Francisco.$2,306 per passenger.Departing Wed, 30 Dec, returning Mon, 4 Jan.Return flight with STARLUX Airlines.Outbound indirect flight with STARLUX Airlines, departs from Chiang Mai on Wed, 30 Dec, arriving in San Francisco International.Inbound indirect flight with STARLUX Airlines, departs from San Francisco International on Mon, 4 Jan, arriving in Chiang Mai.Price includes taxes and charges.From $2,306, select.

San Francisco.$6,772 per passenger.Departing Tue, 10 Nov, returning Tue, 17 Nov.Return flight with Cathay Pacific.Outbound indirect flight with Cathay Pacific, departs from Chiang Mai on Tue, 10 Nov, arriving in San Francisco International.Inbound indirect flight with Cathay Pacific, departs from San Francisco International on Tue, 17 Nov, arriving in Chiang Mai.Price includes taxes and charges.From $6,772, 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 March.

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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 found	$1,422
Cheapest month to fly	February

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

How much are return flights from Chiang Mai to San Francisco International?

The best price we found for a return flight from Chiang Mai to San Francisco International is $1,421. 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.

Which airlines fly direct from Chiang Mai to San Francisco International?

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 $1,421.

How many flights are there a week from Chiang Mai to San Francisco International?

As of September 2026, there are no flights flying from Chiang Mai to San Francisco International.

When is the cheapest time to fly from Chiang Mai to San Francisco International?

The cheapest month to fly from Chiang Mai to San Francisco International is usually February.

Which upcoming date is cheapest to fly from Chiang Mai Airport to San Francisco International Airport on?

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 Wednesday, 24 February 2027.

Can I get a direct flight from Chiang Mai Airport to San Francisco International Airport?

No airlines currently offer direct flights between Chiang Mai Airport and San Francisco International Airport. Most routes have one or more stops.

How can I find the best flight deal to San Francisco International?

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.

When is the best time to book flights to San Francisco?

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.

Which is the cheapest airline to fly from Chiang Mai Airport to San Francisco International with?

Currently, Korean Air offers the cheapest flight tickets to San Francisco International.

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

San Francisco is 15 hours behind Chiang Mai and observes the UTC-8 timezone.
Arriving two hours before an international flight and one hour ahead of a domestic departure are tried-and-true travel tips. Be at the airport with enough time to board your CNX to SFO flight.
Be prepared for bigger queues in popular months like January. Arriving up to four hours ahead of international flights and two hours for a domestic departure is a smart move.
Consider adding a stopover when booking your ticket from Chiang Mai Airport to San Francisco International Airport. Simply uncheck 'Direct flights only' to break up your journey, or enjoy a detour to a new and interesting place. Check out these options between CNX and SFO:
- Shanghai Pudong Airport
- Hong Kong Intl Airport
- Taipei Taiwan Taoyuan Airport

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

The cheapest price we've found for a one-way Chiang Mai Airport to San Francisco International Airport flight is $830. A return plane ticket is currently $1,421. Depending on the availability and when you book, these fares could change.
To get your hands on cheap tickets from CNX to SFO, book in advance. Airlines typically offer the most competitive fares when flights are first released.
Finding cheap flights from Chiang Mai Airport to San Francisco International Airport is more likely if you can be flexible with your trip dates. Use the 'Whole month' search function to see the best prices across each month and score a great deal.
Save time looking for cheap flights from CNX to SFO by setting up a Price Alert. You'll get an email or push notification on the app when a lower fare becomes available.
Secure the ideal flight for you with the help of the filters. To see the 'Fastest,' 'Best' or 'Cheapest' flights from Chiang Mai Airport to San Francisco International Airport, use the 'Sort by' function. You can also filter results by arrival and departure times, airline, and journey duration.

Handy information about Chiang Mai Airport (CNX)

Of all flights departing from Chiang Mai Airport, 73% land on time at their destination.
To get to Chiang Mai Airport from central Chiang Mai, it'll take about 15 minutes if you're going by car. This depends on traffic though. It's approximately 3 kilometres from the airport to the city centre.
Taking public transport? Expect a trip time of around 25 minutes.
Looking for a handy hotel near CNX? If you've booked an early flight from Chiang Mai Airport to San Francisco International Airport, these stays will put you moments from your departure gate:

Arriving at San Francisco International Airport (SFO)

If you're getting in on a late Chiang Mai Airport to San Francisco International Airport flight, nothing beats the convenience of being near the terminal. Grab your luggage from the carousel and then be showered and snoozing not long after at one of these accommodation options near SFO:
Fast-track your adventure by picking up a San Francisco International Airport rental car. Grab your wheels from Dollar, Thrifty or Hertz and experience the lesser-explored corners of San Francisco and beyond.
Lock in the lowest price by reserving your ride from San Francisco International Airport around one week ahead of your trip.

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 25 minutes. It's approximately 21 kilometres away.
It'll take around 35 minutes if you're travelling on public transport.

When to fly to San Francisco International Airport (SFO)

The quietest month for a flight from Chiang Mai Airport to San Francisco International Airport is March, while July is the busiest. Pick the ideal time to visit San Francisco based on whether you prefer a more fast-paced or easygoing experience.
Lock in your flight from Chiang Mai Airport to San Francisco International Airport for September if you'd like to visit San Francisco during its warmest month. You can expect temperatures of between 12ºC and 24ºC.
January has average temperatures of between 5ºC and 16ºC. Look for cheap tickets from CNX to SFO sometime then if you'd rather travel in cooler conditions.

Explore more of the United States

San Francisco has plenty going for it, but there are so many other parts of the United States just waiting to be discovered. About 64 kilometres south-east of San Francisco, a trip to San Jose will keep your itinerary busy. Start with attractions like Winchester Mystery House, The Tech Interactive and Santa Clara Valley.
Around 257 kilometres south-east of San Francisco, Fresno is another favourite stop in the United States. Experience the best of this destination with a visit to Forestiere Underground Gardens, Shinzen Japanese Garden and Fresno Chaffee Zoo.