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Chiang Mai

$367+ 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 1/20. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — CNX
Jan 22 — Jan 291
Thu 1/22
Thu 1/29
1 adult, Economy
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Find cheap flights from San Francisco to Chiang Mai with Cheapflights

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Cheapflights Tip: The best prices from San Francisco to Chiang Mai are usually found in April or November, booked 40 days in advance, depart on a Tuesday or Wednesday and return on a Wednesday

Cheap 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 December 23, 2025.

This oojo deal was found by Cheapflights users on 12/21. 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 12/3111:40 pmSFO - CNX
1 stop19h 45mChina Airlines
Thu 1/2911:25 amCNX - SFO
1 stop22h 20mChina Airlines
Deal found 12/21$971
This Gurufare deal was found by Cheapflights users on 12/22. 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.
Mon 12/2912:00 pmSFO - CNX
2 stops36h 25mChina Eastern
Wed 1/1410:05 amCNX - SFO
3 stops37h 55mChina Eastern
Deal found 12/22$1,126
This FlightHub deal was found by Cheapflights users on 12/22. 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.
Wed 12/3111:30 pmSFO - CNX
1 stop20h 05mEVA Air
Thu 1/299:40 pmCNX - SFO
2 stops32h 10mEVA Air
Deal found 12/22$1,137
This FlightHub deal was found by Cheapflights users on 12/22. 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.
Wed 12/3111:40 pmSFO - CNX
1 stop19h 45mChina Airlines
Tue 1/1311:25 amCNX - SFO
1 stop22h 20mChina Airlines
Deal found 12/22$1,153
This KAYAK deal was found by Cheapflights users on 12/21. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/314:42 pmSFO - CNX
2 stops26h 53mMultiple Airlines
Thu 1/2912:10 pmCNX - SFO
2 stops21h 20mMultiple Airlines
Deal found 12/21$1,180
This FlightHub deal was found by Cheapflights users on 12/22. 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.
Tue 12/3011:50 pmSFO - CNX
1 stop19h 45mEVA Air
Thu 1/1510:10 amCNX - SFO
2 stops23h 20mEVA Air
Deal found 12/22$1,189
This FlightHub deal was found by Cheapflights users on 12/22. 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.
Tue 12/3012:00 pmSFO - CNX
2 stops30h 25mEVA Air
Wed 1/149:40 pmCNX - SFO
2 stops23h 50mEVA Air
Deal found 12/22$1,226
This Gurufare deal was found by Cheapflights users on 12/22. 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.
Wed 12/3111:50 pmSFO - CNX
1 stop19h 45mEVA Air
Mon 1/129:40 pmCNX - SFO
2 stops23h 50mEVA Air
Deal found 12/22$1,237
This KAYAK deal was found by Cheapflights users on 12/22. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/3111:50 pmSFO - CNX
1 stop19h 45mEVA Air
Tue 1/139:40 pmCNX - SFO
2 stops23h 50mEVA Air
Deal found 12/22$1,264

Find 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 December 23, 2025.

Most accurate provider

Justfly.com
3 stars

Most trusted provider

Justfly.com
3 stars

Round-trip from

$713
(FlightHub)

One-way from

$367
(Expedia)

Popular in

December

Cheapest in

April

Average price

$1,499
Provider with most accurate pricing for San Francisco-Chiang Mai flight deals.
Search Deals
Provider most trusted by Cheapflights users for San Francisco-Chiang Mai flights.
Search Deals
From San Francisco to Chiang Mai
Search Deals
One-way flight from San Francisco to Chiang Mai
Search Deals
Highest demand for flights based on searches. 5% potential increase in price ($62 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($43 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

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 December 23, 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

Sat 3/21

1:00 pm-3:25 pm

3 stops60h 25m

Chiang Mai

Sat 3/28

4:25 pm-9:05 am

3 stops54h 40m

$713

San FranciscoChiang Mai

SFO - CNX

SFOCNX

San Francisco

Mon 3/16

12:40 pm-10:55 pm

1 stop20h 15m

Chiang Mai

Wed 3/18

12:15 am-10:30 am

1 stop24h 15m

$724

San FranciscoChiang Mai

SFO - CNX

SFOCNX

San Francisco

Wed 1/21

7:30 am-2:20 pm

2 stops39h 50m

Chiang Mai

Thu 2/5

4:25 pm-9:00 am

2 stops55h 35m

$752

San FranciscoChiang Mai

SFO - CNX

SFOCNX

San Francisco

Thu 2/26

11:40 pm-10:25 am

1 stop19h 45m

Chiang Mai

Sun 3/8

11:25 am-6:45 pm

1 stop22h 20m

$782

San FranciscoChiang Mai

SFO - CNX

SFOCNX

San Francisco

Sun 1/18

5:55 am-2:20 pm

2 stops41h 25m

Chiang Mai

Sat 1/31

4:25 pm-9:00 am

2 stops55h 35m

$794

San FranciscoChiang Mai

SFO - CNX

SFOCNX

San Francisco

Mon 3/9

1:00 pm-2:20 pm

1 stop35h 20m

Chiang Mai

Thu 4/23

2:55 pm-5:50 pm

2 stops40h 55m

$798

San FranciscoChiang Mai

SFO - CNX

SFOCNX

San Francisco

Tue 1/20

8:25 am-2:20 pm

2 stops38h 55m

Chiang Mai

Thu 1/29

3:35 pm-3:08 pm

2 stops38h 33m

$799

San FranciscoChiang Mai

SFO - CNX

SFOCNX

San Francisco

Wed 2/4

11:40 am-10:55 pm

1 stop20h 15m

Chiang Mai

Sat 2/14

12:15 am-9:30 am

1 stop24h 15m

$810

San FranciscoChiang Mai

SFO - CNX

SFOCNX

San Francisco

Wed 1/28

11:00 am-9:00 pm

2 stops43h 00m

$374

San FranciscoChiang Mai

SFO - CNX

SFOCNX

San Francisco

Fri 2/27

2:25 pm-9:50 pm

3 stops40h 25m

$396

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/21

Showing 1-10 of 18 results
1
2

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 December.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
Justfly.comPrice Accuracy3 starsTrust Score*3 stars
CheapfaremartPrice Accuracy-Trust Score*1 star
AranGrantPrice Accuracy2 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
oojoPrice Accuracy3 starsTrust Score*3 stars
OvagoPrice Accuracy2 starsTrust Score*2 stars
JustAirTicketPrice Accuracy-Trust Score*1 star

*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 Justfly.com to be most consistent on Cheapflights vs. Justfly.com Users can find the same prices on San Francisco-Chiang Mai flight deals on Cheapflights vs. Justfly.com >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 Justfly.com the most. Justfly.com 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 December 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 40 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, November is the cheapest month in which you can book a flight from San Francisco to Chiang Mai (average of $668). Flying from San Francisco to Chiang Mai in June is currently the most expensive (average of $1,068). 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.

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 December 23, 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.
EVA Air
8.5
Very good
1,298 reviews

Comfort

8.3

Overall

8.5

Entertainment

8.0

Boarding

8.4

Crew

8.6

Food

8.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Nov 2025

TPE - CRK

All was okay except for the medical emergency that happened before our boarding. I wish that the medical emergency response was more immediate.
EVA Air
8.5
Very good
1,298 reviews
EVA Air
8.5
Very good
1,298 reviews

Comfort

8.3

Overall

8.5

Entertainment

8.0

Boarding

8.4

Crew

8.6

Food

8.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Nov 2025

TPE - CRK

All was okay except for the medical emergency that happened before our boarding. I wish that the medical emergency response was more immediate.
Korean Air
8.4
Very good
1,185 reviews
EVA Air
8.5
Very good
1,298 reviews

Comfort

8.3

Overall

8.5

Entertainment

8.0

Boarding

8.4

Crew

8.6

Food

8.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Nov 2025

TPE - CRK

All was okay except for the medical emergency that happened before our boarding. I wish that the medical emergency response was more immediate.
China Airlines
8.3
Very good
792 reviews
EVA Air
8.5
Very good
1,298 reviews

Comfort

8.3

Overall

8.5

Entertainment

8.0

Boarding

8.4

Crew

8.6

Food

8.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Nov 2025

TPE - CRK

All was okay except for the medical emergency that happened before our boarding. I wish that the medical emergency response was more immediate.
Asiana Airlines
8.2
Very good
496 reviews
EVA Air
8.5
Very good
1,298 reviews

Comfort

8.3

Overall

8.5

Entertainment

8.0

Boarding

8.4

Crew

8.6

Food

8.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Nov 2025

TPE - CRK

All was okay except for the medical emergency that happened before our boarding. I wish that the medical emergency response was more immediate.
Cathay Pacific
7.6
Good
1,103 reviews
EVA Air
8.5
Very good
1,298 reviews

Comfort

8.3

Overall

8.5

Entertainment

8.0

Boarding

8.4

Crew

8.6

Food

8.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Nov 2025

TPE - CRK

All was okay except for the medical emergency that happened before our boarding. I wish that the medical emergency response was more immediate.

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 $658. Other airlines that can offer you cheap pricing are China Airlines, from $688, and Asiana Airlines, from $691. 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 $350. Users have also found prices from $361 and $393 on Cathay Pacific 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, November is the cheapest month in which you can book a flight from San Francisco to Chiang Mai (average of $668). Flying from San Francisco to Chiang Mai in June is currently the most expensive (average of $1,068). 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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Top 7 airlines flying from San Francisco to Chiang Mai

Discover the top 7 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 December 23, 2025.
AirlineCheapestAverageFlexibilityOn-time
Korean AirCheapest$658Average$836FlexibilityNo cancel feeOn-time81%
China AirlinesCheapest$688Average$772FlexibilityNo cancel feeOn-time70%
Asiana AirlinesCheapest$691Average$783FlexibilityNo cancel feeOn-time76%
STARLUX AirlinesCheapest$766Average$781FlexibilityNo cancel feeOn-timeN/A
Cathay PacificCheapest$797Average$1,191FlexibilityNo cancel feeOn-time72%
EVA AirCheapest$832Average$966FlexibilityNo cancel feeOn-time74%
Singapore AirlinesCheapest$855Average$1,117FlexibilityNo cancel feeOn-time81%

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