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Cheap flights from Chiang Mai to San Francisco from ฿20,090

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 30/4. Fares are subject to change and may not be available on all flights or dates of travel.
CNX — SFO
29 Apr — 6 May1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Chiang Mai to San Francisco

Enter your travel dates to find the best prices.

Cheapest flights from Chiang Mai to San Francisco
Explore the most affordable flight options available from Chiang Mai to San Francisco. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 30 March 2026.

Mon 1/611:35
CNX
-
SFO
1 stop33h 10m
EVA Air
Mon 31/801:25
SFO
-
CNX
1 stop19h 00m
EVA Air
Deal found 30/3฿25,046
Sun 31/511:35
CNX
-
SFO
1 stop33h 10m
EVA Air
Mon 31/801:25
SFO
-
CNX
1 stop19h 00m
EVA Air
Deal found 29/3฿25,243
Mon 18/511:35
CNX
-
SFO
1 stop33h 10m
EVA Air
Wed 27/512:30
SFO
-
CNX
1 stop31h 55m
EVA Air
Deal found 29/3฿25,571
Tue 2/617:20
CNX
-
SFO
1 stop17h 10m
STARLUX Airlines
Tue 1/900:50
SFO
-
CNX
1 stop25h 30m
STARLUX Airlines
Deal found 29/3฿28,066
Mon 18/511:35
CNX
-
SFO
1 stop33h 10m
EVA Air
Wed 27/500:50
SFO
-
CNX
2 stops22h 55m
EVA Air
Deal found 29/3฿28,460
Sun 31/520:00
CNX
-
SFO
2 stops24h 45m
EVA Air
Tue 1/901:25
SFO
-
CNX
2 stops22h 20m
EVA Air
Deal found 29/3฿28,591
Tue 2/611:35
CNX
-
SFO
1 stop22h 35m
EVA Air
Mon 31/801:25
SFO
-
CNX
1 stop19h 00m
EVA Air
Deal found 29/3฿28,657
Wed 9/911:20
CNX
-
SFO
1 stop23h 10m
China Airlines
Sat 12/901:05
SFO
-
CNX
1 stop19h 15m
China Airlines
Deal found 28/3฿28,821

Find flight deals from Chiang Mai to San Francisco

Discover tips and strategies to find the most affordable flight options for your journey from Chiang Mai (CNX) to San Francisco (SFO). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 30 March 2026.

Round-trip from

฿25,243

One-way from

฿20,090

Popular in

July

Cheapest in

May

Average price

฿30,298
EVA Air
  • EVA Air
  • 31/5-31/8
  • 2 total stops
  • 52h 10m total
  • Chiang Mai to San Francisco
Search Deals
30/4
  • 30/4
  • 2 total stops
  • 49h 20m total
  • Chiang Mai to San Francisco
Search Deals
Highest demand for flights based on searches. 15% potential increase in price (฿174,898 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (฿24,257 potential savings vs. average return price).
Search Deals
Average for round-trip flights in March 2026
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Chiang Mai to San Francisco that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 17,341 searches. Data last updated 30 March 2026.
Use the filters below to find and compare flights from Chiang Mai to San Francisco that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

Chiang MaiSan Francisco

CNX - SFO

CNXSFO

Chiang Mai

Thu 24/9

17:20-20:30

1 stop17h 10m

San Francisco

Sun 27/9

00:50-16:20

1 stop25h 30m

฿29,609

Chiang MaiSan Francisco

CNX - SFO

CNXSFO

Chiang Mai

Sun 31/5

20:00-06:45

2 stops24h 45m

San Francisco

Mon 31/8

01:00-19:10

2 stops28h 10m

฿30,167

Chiang MaiSan Francisco

CNX - SFO

CNXSFO

Chiang Mai

Thu 24/9

11:55-20:10

2 stops22h 15m

San Francisco

Sun 27/9

01:00-13:45

2 stops22h 45m

฿30,528

Chiang MaiSan Francisco

CNX - SFO

CNXSFO

Chiang Mai

Wed 9/9

11:20-20:30

1 stop23h 10m

San Francisco

Sat 12/9

01:05-10:20

1 stop19h 15m

฿30,594

Chiang MaiSan Francisco

CNX - SFO

CNXSFO

Chiang Mai

Thu 24/9

11:20-19:55

1 stop22h 35m

San Francisco

Sun 27/9

01:05-10:20

1 stop19h 15m

฿31,611
Fastest return journey

Chiang MaiSan Francisco

CNX - SFO

CNXSFO

Chiang Mai

Sat 9/5

11:35-20:10

1 stop22h 35m

San Francisco

Fri 15/5

01:15-10:25

1 stop19h 10m

฿31,973

Chiang MaiSan Francisco

CNX - SFO

CNXSFO

Chiang Mai

Tue 2/6

11:55-20:10

2 stops22h 15m

San Francisco

Mon 31/8

01:25-19:10

2 stops27h 45m

฿33,679

Chiang MaiSan Francisco

CNX - SFO

CNXSFO

Chiang Mai

Tue 9/6

11:35-20:10

1 stop22h 35m

San Francisco

Mon 15/6

01:15-10:25

1 stop19h 10m

฿33,778
Cheapest one-way

Chiang MaiSan Francisco

CNX - SFO

CNXSFO

Chiang Mai

Wed 29/4

11:20-19:55

1 stop22h 35m

฿25,407

Chiang MaiSan Francisco

CNX - SFO

CNXSFO

Chiang Mai

Fri 24/4

14:55-09:05

1 stop32h 10m

฿25,900

Flights are sorted by cheapest return flights first.

Deals found on 27/3

Showing 1-10 of 15 resultsSorted by cheapest first
1
2

Best time to book a flight from Chiang Mai to San Francisco

Have a flexible travel schedule? Discover the best time to fly to San Francisco from Chiang Mai with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Chiang Mai to San Francisco

What is the cheapest month to book a flight from Chiang Mai to San Francisco?

Currently, May is the cheapest month in which you can book a flight from Chiang Mai to San Francisco (average of ฿25,506). Flying from Chiang Mai to San Francisco in August is currently the most expensive (average of ฿36,732). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

How much does it cost for a return flight from Chiang Mai to San Francisco?

Reviews of airlines servicing San Francisco

Get insights into the airlines that provide service to San Francisco. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to San Francisco. Reviews last updated 30 March 2026.
Get a feel of what it's like to fly with EVA Air from Chiang Mai to San Francisco by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
EVA Air
8.5
Very Good
1,394 reviews
Check prices

Entertainment

8.0

Overall

8.5

Boarding

8.4

Food

8.1

Comfort

8.3

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Anonymous,Mar 2026

TPE - SFO

Why when we’re about to board they suddenly announced the letters ABC to board first .. so what is the use us waiting at the door (with wheelchairs) ended up almost at the end to board and I can see people walking boarding first? Is this something new? You go by letters now?
EVA Air
8.5
Very Good
1,394 reviews
EVA Air
8.5
Very Good
1,394 reviews
Check prices

Entertainment

8.0

Overall

8.5

Boarding

8.4

Food

8.1

Comfort

8.3

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Anonymous,Mar 2026

TPE - SFO

Why when we’re about to board they suddenly announced the letters ABC to board first .. so what is the use us waiting at the door (with wheelchairs) ended up almost at the end to board and I can see people walking boarding first? Is this something new? You go by letters now?

Related info for your journey

Find useful and relevant information for your journey from Chiang Mai to San Francisco. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Chiang Mai to San Francisco?

    Airlines like STARLUX Airlines, EVA Air, and China Airlines fly from Chiang Mai to San Francisco in about 17h 10m. The time it takes to get you to your destination can typically vary by up to 7h 35m. The distance from Chiang Mai to San Francisco is about 12390 km. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

  • What is the cheapest airline to fly from Chiang Mai to San Francisco round-trip?

    EVA Air, at ฿25,975, was found to be the cheapest airline from Chiang Mai to San Francisco.. You may be able to fly from Chiang Mai to San Francisco for 13% less than the average price by searching for this airline.

  • Can I find deals for flights from Chiang Mai to San Francisco that include hotel bookings?

    Yes. In addition to deals on Chiang Mai to San Francisco flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Chiang Mai to San Francisco?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Chiang Mai to San Francisco.

  • Can I find deals for business class flights from Chiang Mai to San Francisco?

    Yes. Cheapflights offers flight deals from Chiang Mai to San Francisco by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Chiang Mai to San Francisco?

    Currently, May is the cheapest month in which you can book a flight from Chiang Mai to San Francisco (average of ฿25,506). Flying from Chiang Mai to San Francisco in August is currently the most expensive (average of ฿36,732). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Travelling to a place near San Francisco?

Book flights to San Francisco if you plan to visit one of these locations
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Fly from Chiang Mai to San Francisco on these airlines

Choose from the following airlines for your flight from Chiang Mai to San Francisco. Flights are based on user searches made on Cheapflights and were last updated on 30 March 2026.
EVA Air flights from Chiang Mai to San Francisco

Top airline flying from Chiang Mai to San Francisco

Discover the top airline that operate flights from Chiang Mai to San Francisco. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 17,341 searches. Data last updated 30 March 2026.
AirlineCheapestAverageFlexibilityOn-time
EVA AirCheapest฿25,975Average฿26,267FlexibilityNo cancel feeOn-time74%
Search EVA Air flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Chiang Mai to San Francisco?

Deals for Chiang Mai to San Francisco flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

Why should you use Cheapflights to find cheap flight tickets from Chiang Mai to San Francisco?

Millions of users choose and trust Cheapflights to book the best flight deals from Chiang Mai to San Francisco for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

Can Cheapflights find flights from Chiang Mai to San Francisco with no change fees?

Yes, we can. To see specific flights from Chiang Mai to San Francisco with no change fees, users can toggle flexible booking options after using the search form above to find flights.

Can Cheapflights notify me if prices for flights from Chiang Mai to San Francisco become cheaper?

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to San Francisco from Chiang Mai today and book when prices fit your budget.

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