Chiang Mai

$391+ Cheap flights from San Francisco (SFO) to Chiang Mai (CNX)

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 10/21. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — CNX
Oct 24 — Oct 311
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Find cheap flights from San Francisco to Chiang Mai with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

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Cheapflights Tip: The best prices from San Francisco to Chiang Mai are usually found in September or October, booked 3 days in advance, depart on a Tuesday or Wednesday and return on a Wednesday

Cheap flight deals from San Francisco to Chiang Mai

Discover tips and strategies to find the most affordable flight options for your journey from San Francisco (SFO) to Chiang Mai (CNX). 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 September 24, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$660
(oojo)

One-way from

$391
(FlightHub)

Popular in

June

Cheapest in

September

Average price

$862
Provider with most accurate pricing for San Francisco-Chiang Mai flight deals.
Provider most trusted by Cheapflights users for San Francisco-Chiang Mai flights.
From San Francisco to Chiang Mai
One-way flight from San Francisco to Chiang Mai
Highest demand for flights based on searches. 16% potential increase in price ($206 potential increase over avg. RT price).
Cheapest flight prices on average. 3% potential price decrease ($38 potential savings vs. average RT price).
Average for round-trip flights in September 2025

Find flight deals from San Francisco to Chiang Mai

Cheapest flights from San Francisco to Chiang Mai
Explore the most affordable flight options available from San Francisco to Chiang Mai. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 24, 2025.

This oojo deal was found by Cheapflights users on 9/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/1912:00 pmSFO - CNX
1 stop42h 50mAir China
Tue 12/211:05 pmCNX - SFO
1 stop25h 25mAir China
Deal found 9/23$660
This FlightHub deal was found by Cheapflights users on 9/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/2712:00 pmSFO - CNX
1 stop35h 20mChina Eastern
Sun 12/710:05 amCNX - SFO
2 stops37h 55mChina Eastern
Deal found 9/24$664
This FlightHub deal was found by Cheapflights users on 9/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/312:00 pmSFO - CNX
2 stops36h 25mChina Eastern
Wed 11/124:25 pmCNX - SFO
2 stops31h 35mChina Eastern
Deal found 9/23$665
This Gotogate deal was found by Cheapflights users on 9/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/1012:00 pmSFO - CNX
1 stop35h 20mChina Eastern
Wed 12/33:35 pmCNX - SFO
1 stop32h 25mChina Eastern
Deal found 9/24$688
This Air China deal was found by Cheapflights users on 9/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air China is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/1212:00 pmSFO - CNX
1 stop42h 50mAir China
Tue 3/311:05 pmCNX - SFO
1 stop25h 25mAir China
Deal found 9/24$708
This FlightHub deal was found by Cheapflights users on 9/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/271:00 pmSFO - CNX
1 stop35h 20mChina Eastern
Wed 11/123:35 pmCNX - SFO
1 stop32h 25mChina Eastern
Deal found 9/24$710
This FlightHub deal was found by Cheapflights users on 9/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/271:00 pmSFO - CNX
1 stop35h 20mChina Eastern
Tue 11/114:25 pmCNX - SFO
3 stops55h 35mChina Eastern
Deal found 9/24$711
This FlightHub deal was found by Cheapflights users on 9/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/312:00 pmSFO - CNX
2 stops30h 05mChina Eastern
Wed 11/194:25 pmCNX - SFO
2 stops31h 35mChina Eastern
Deal found 9/24$712
This Gotogate deal was found by Cheapflights users on 9/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/212:00 pmSFO - CNX
1 stop35h 25mChina Eastern
Tue 10/284:25 pmCNX - SFO
3 stops55h 35mChina Eastern
Deal found 9/23$726
This Gurufare deal was found by Cheapflights users on 9/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/11:00 pmSFO - CNX
2 stops36h 25mChina Eastern
Tue 11/183:35 pmCNX - SFO
2 stops38h 00mChina Eastern
Deal found 9/24$732

Cheapflights Fare Finder

 
Customize your flight search to find flights from San Francisco to Chiang Mai 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 2,558,603 searches. Data last updated September 24, 2025.
Use the filters below to find and compare flights from San Francisco to Chiang Mai that are best for you.

Fly from

San Francisco

Fly to

Chiang Mai

Route

Depart

Return

Price

San FranciscoChiang Mai

SFO - CNX

SFOCNX

San Francisco

Wed 10/22

6:00 am-9:55 pm

2 stops25h 55m

Chiang Mai

Tue 10/28

12:15 am-10:30 am

1 stop24h 15m

$821

San FranciscoChiang Mai

SFO - CNX

SFOCNX

San Francisco

Thu 11/27

11:40 am-10:55 pm

1 stop20h 15m

Chiang Mai

Sun 12/7

12:15 am-3:57 pm

2 stops30h 42m

$823

San FranciscoChiang Mai

SFO - CNX

SFOCNX

San Francisco

Tue 10/21

1:10 am-7:10 pm

2 stops28h 00m

Chiang Mai

Wed 10/29

11:50 am-6:40 am

1 stop32h 50m

$847

San FranciscoChiang Mai

SFO - CNX

SFOCNX

San Francisco

Mon 11/24

11:30 pm-10:35 am

1 stop20h 05m

Chiang Mai

Thu 11/27

11:50 am-3:00 pm

1 stop18h 10m

$855

San FranciscoChiang Mai

SFO - CNX

SFOCNX

San Francisco

Thu 11/13

12:00 pm-10:35 am

1 stop31h 35m

Chiang Mai

Thu 2/26

11:50 am-6:30 pm

1 stop21h 40m

$855

San FranciscoChiang Mai

SFO - CNX

SFOCNX

San Francisco

Wed 11/19

12:00 pm-10:35 am

1 stop31h 35m

Chiang Mai

Wed 3/4

11:50 am-6:30 pm

1 stop21h 40m

$855

San FranciscoChiang Mai

SFO - CNX

SFOCNX

San Francisco

Fri 11/28

11:30 pm-10:35 am

1 stop20h 05m

Chiang Mai

Mon 12/1

11:50 am-6:30 am

1 stop33h 40m

$895

San FranciscoChiang Mai

SFO - CNX

SFOCNX

San Francisco

Sun 11/23

12:00 pm-10:35 am

1 stop31h 35m

Chiang Mai

Mon 3/2

11:50 am-2:50 pm

1 stop18h 00m

$895

San FranciscoChiang Mai

SFO - CNX

SFOCNX

San Francisco

Sun 11/23

11:50 pm-10:35 am

1 stop19h 45m

Chiang Mai

Sun 3/1

11:50 am-6:30 am

1 stop33h 40m

$895

San FranciscoChiang Mai

SFO - CNX

SFOCNX

San Francisco

Mon 11/17

11:30 pm-10:35 am

1 stop20h 05m

Chiang Mai

Sat 2/28

11:50 am-6:30 am

1 stop33h 40m

$895

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/24

Showing 1-10 of 22 results
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Compare providers for flights from San Francisco to Chiang Mai

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from San Francisco to Chiang Mai in September.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*3 stars
OvagoPrice Accuracy2 starsTrust Score*2 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on San Francisco-Chiang Mai flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on San Francisco-Chiang Mai flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from San Francisco-Chiang Mai flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on San Francisco-Chiang Mai flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for San Francisco-Chiang Mai flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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

Have a flexible travel schedule? Discover the best time to fly to Chiang Mai from San Francisco with our price prediction graph.
Estimated round-trip 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 San Francisco to Chiang Mai

How far ahead should I book a flight from San Francisco to Chiang Mai?

Use this chart to determine the optimal time to book a round-trip flight from San Francisco to Chiang Mai. Price data was last updated on September 19, 2025.

The price you pay for your flight from San Francisco to Chiang Mai may vary depending on when you book. For the best chance of a lower fare, look to book 3 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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

Currently, September is the cheapest month in which you can book a flight from San Francisco to Chiang Mai (average of $976). Flying from San Francisco to Chiang Mai in June is currently the most expensive (average of $1,562). 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.

What is the cheapest time of day to fly from SFO to CNX?

Find hourly flight availability from San Francisco to Chiang Mai. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 24, 2025.

When flying from San Francisco to Chiang Mai, the time of day you fly usually plays a role in the price. Save by searching for a flight at noon, which can drop the price by up to 5% versus a flight in the morning.

Reviews of airlines servicing Chiang Mai

Get insights into the airlines that provide service to Chiang Mai. 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 Chiang Mai. Reviews last updated September 24, 2025.
Read reviews from past customers who have flown EVA Air, Korean Air, and China Airlines from San Francisco to Chiang Mai. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

Overall

8.4

Boarding

8.4

Crew

8.6

Comfort

8.3

Entertainment

8.0

Food

8.1

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount

Overall

8.4

Boarding

8.4

Crew

8.6

Comfort

8.3

Entertainment

8.0

Food

8.1

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount

Overall

8.4

Boarding

8.4

Crew

8.6

Comfort

8.3

Entertainment

8.0

Food

8.1

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount

Overall

8.4

Boarding

8.4

Crew

8.6

Comfort

8.3

Entertainment

8.0

Food

8.1

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount

Overall

8.4

Boarding

8.4

Crew

8.6

Comfort

8.3

Entertainment

8.0

Food

8.1

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount

Overall

8.4

Boarding

8.4

Crew

8.6

Comfort

8.3

Entertainment

8.0

Food

8.1

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount

Related info for your journey

Find useful and relevant information for your journey from San Francisco to Chiang Mai. 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 San Francisco to Chiang Mai?

    Departing from San Francisco to Chiang Mai will take you 20h 15m. San Francisco and Chiang Mai are separated by a distance of 7699 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines flying from San Francisco to Chiang Mai round-trip?

    Cheapflights users have booked flights from San Francisco to Chiang Mai round-trip from $668. Other airlines that can offer you cheap pricing are Asiana Airlines, from $691, and China Eastern, from $696. You may be able to fly from San Francisco to Chiang Mai for 36% less than the average price by searching for these airlines.

  • What are the cheapest airlines to fly from San Francisco to Chiang Mai one-way?

    For one-way options, check prices for Asiana Airlines. According to our data, you can fly for as low as $391. Users have also found prices from $441 and $456 on Delta and Korean Air, respectively.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from San Francisco to Chiang Mai 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 San Francisco to Chiang Mai?

    Currently, September is the cheapest month in which you can book a flight from San Francisco to Chiang Mai (average of $976). Flying from San Francisco to Chiang Mai in June is currently the most expensive (average of $1,562). 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

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for San Francisco to Chiang Mai

See prices for flight routes from nearby airports that may be better suited for you.

Top 8 airlines flying from San Francisco to Chiang Mai

Discover the top 8 airlines that operate flights from San Francisco to Chiang Mai. 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 2,558,603 searches. Data last updated September 24, 2025.
AirlineCheapestAverageFlexibilityOn-time
Korean AirCheapest$668Average$842FlexibilityNo cancel feeOn-time81%
Asiana AirlinesCheapest$691Average$808FlexibilityNo cancel feeOn-time76%
China EasternCheapest$696Average$852FlexibilityNo cancel feeOn-time62%
China AirlinesCheapest$759Average$886FlexibilityNo cancel feeOn-time70%
STARLUX AirlinesCheapest$770Average$861FlexibilityNo cancel feeOn-timeN/A
Cathay PacificCheapest$795Average$1,133FlexibilityNo cancel feeOn-time72%
Singapore AirlinesCheapest$855Average$1,109FlexibilityNo cancel feeOn-time81%
EVA AirCheapest$863Average$1,026FlexibilityNo cancel feeOn-time74%

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