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Chiang Mai

$932+ Cheap flights from Portland (PDX) to Chiang Mai (CNX)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/23. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — CNX
May 4 — May 111
Sun 5/4
Sun 5/11
1 adult, Economy
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Cheap flight deals from Portland to Chiang Mai

Discover tips and strategies to find the most affordable flight options for your journey from Portland (PDX) 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 April 29, 2025.

Most accurate provider

AranGrant
3 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$1,050
(FlightHub)

Popular in

September

Cheapest in

May

Average price

$1,266
Provider with most accurate pricing for Portland-Chiang Mai flight deals.
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Provider most trusted by Cheapflights users for Portland-Chiang Mai flights.
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From Portland to Chiang Mai
Search Deals
Highest demand for flights based on searches. 13% potential increase in price ($232 potential increase over avg. RT price).
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Cheapest flight prices on average. 9% potential price decrease ($130 potential savings vs. average RT price).
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Average for round-trip flights in April 2025
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Find flight deals from Portland to Chiang Mai

Cheapest flights from Portland to Chiang Mai
Explore the most affordable flight options available from Portland to Chiang Mai. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 29, 2025.

This FlightHub deal was found by Cheapflights users on 4/29. 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 9/238:37 pmPDX - CNX
2 stops29h 43mSTARLUX Airlines
Tue 9/305:20 pmCNX - PDX
2 stops39h 50mSTARLUX Airlines
Deal found 4/29$932
This Expedia deal was found by Cheapflights users on 4/28. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/67:00 amPDX - CNX
2 stops26h 40mMultiple Airlines
Tue 8/2612:45 amCNX - PDX
2 stops33h 45mMultiple Airlines
Deal found 4/28$945
This KAYAK deal was found by Cheapflights users on 4/29. 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.
Mon 11/106:00 amPDX - CNX
2 stops26h 05mKorean Air
Tue 12/212:15 amCNX - PDX
2 stops31h 51mKorean Air
Deal found 4/29$960
This oojo deal was found by Cheapflights users on 4/29. 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.
Mon 11/106:00 amPDX - CNX
2 stops37h 25mChina Airlines
Wed 12/311:25 amCNX - PDX
2 stops26h 54mChina Airlines
Deal found 4/29$992
This Fareboom deal was found by Cheapflights users on 4/28. 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 Fareboom is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/65:55 pmPDX - CNX
2 stops26h 30mEVA Air
Wed 8/2711:35 amCNX - PDX
2 stops23h 00mEVA Air
Deal found 4/28$1,021
This FlightHub deal was found by Cheapflights users on 4/29. 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 5/156:11 amPDX - CNX
2 stops41h 14mChina Eastern
Mon 5/192:55 pmCNX - PDX
2 stops39h 13mChina Eastern
Deal found 4/29$1,050
This Qatar Airways deal was found by Cheapflights users on 4/29. 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 Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/231:24 pmPDX - CNX
3 stops34h 21mQatar Airways
Tue 9/308:00 pmCNX - PDX
3 stops40h 44mQatar Airways
Deal found 4/29$1,098
This Delta deal was found by Cheapflights users on 4/29. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/912:40 amPDX - CNX
2 stops31h 25mDelta
Tue 12/212:15 amCNX - PDX
2 stops38h 36mDelta
Deal found 4/29$1,553
This Gurufare deal was found by Cheapflights users on 4/29. 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.
Fri 5/95:50 pmPDX - CNX
3 stops29h 55mCathay Pacific
Sat 5/3110:10 amCNX - PDX
3 stops68h 36mCathay Pacific
Deal found 4/29$1,615
This FlightHub deal was found by Cheapflights users on 4/29. 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.
Sat 10/47:35 pmPDX - CNX
2 stops38h 05mAsiana Airlines
Sun 10/1212:45 amCNX - PDX
2 stops47h 29mAsiana Airlines
Deal found 4/29$1,617

Cheapflights Fare Finder

Customize your flight search to find flights from Portland 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 April 29, 2025.
Use the filters below to find and compare flights from Portland to Chiang Mai that are best for you.

Fly from

Portland

Fly to

Chiang Mai

Route

Depart

Return

Price

PortlandChiang Mai

PDX - CNX

PDXCNX

Portland

Tue 9/23

8:37 pm-4:20 pm

2 stops29h 43m

Chiang Mai

Tue 9/30

5:20 pm-7:10 pm

2 stops39h 50m

$932

PortlandChiang Mai

PDX - CNX

PDXCNX

Portland

Wed 8/6

7:00 am-11:40 pm

2 stops26h 40m

Chiang Mai

Tue 8/26

12:45 am-8:30 pm

2 stops33h 45m

$945

PortlandChiang Mai

PDX - CNX

PDXCNX

Portland

Sat 9/13

5:10 pm-9:55 pm

2 stops38h 45m

Chiang Mai

Sun 9/21

11:15 pm-5:06 pm

2 stops31h 51m

$996

PortlandChiang Mai

PDX - CNX

PDXCNX

Portland

Wed 8/6

5:55 pm-10:25 am

2 stops26h 30m

Chiang Mai

Wed 8/27

11:35 am-8:35 pm

2 stops23h 00m

$1,021

PortlandChiang Mai

PDX - CNX

PDXCNX

Portland

Thu 5/15

6:11 am-1:25 pm

2 stops41h 14m

Chiang Mai

Mon 5/19

2:55 pm-4:08 pm

2 stops39h 13m

$1,050

PortlandChiang Mai

PDX - CNX

PDXCNX

Portland

Tue 9/23

1:24 pm-1:45 pm

3 stops34h 21m

Chiang Mai

Tue 9/30

8:00 pm-10:44 pm

3 stops40h 44m

$1,098

PortlandChiang Mai

PDX - CNX

PDXCNX

Portland

Fri 9/12

12:40 am-9:55 pm

2 stops31h 15m

Chiang Mai

Sun 9/21

11:15 pm-5:06 pm

2 stops31h 51m

$1,554

PortlandChiang Mai

PDX - CNX

PDXCNX

Portland

Fri 5/9

5:50 pm-1:45 pm

3 stops29h 55m

Chiang Mai

Sat 5/31

10:10 am-4:46 pm

3 stops68h 36m

$1,615

PortlandChiang Mai

PDX - CNX

PDXCNX

Portland

Sat 10/4

7:35 pm-11:40 pm

2 stops38h 05m

Chiang Mai

Sun 10/12

12:45 am-10:14 am

2 stops47h 29m

$1,617

PortlandChiang Mai

PDX - CNX

PDXCNX

Portland

Sat 5/31

5:33 pm-1:15 pm

3 stops53h 42m

$2,936

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/29

Showing 1-10 of 12 results
1
2

Compare providers for flights from Portland 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 Portland to Chiang Mai in April.
ProviderPrice AccuracyTrust Score*
AranGrantPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*2 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
ScholarTripPrice Accuracy3 starsTrust Score*3 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 Portland-Chiang Mai flights, users find the pricing of AranGrant to be most consistent on Cheapflights vs. AranGrant Users can find the same prices on Portland-Chiang Mai flight deals on Cheapflights vs. AranGrant >95% of the time. Price accuracy is based on data collected from Portland-Chiang Mai flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Portland-Chiang Mai flights, Cheapflights users trust AranGrant the most. AranGrant 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 Portland-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 Portland to Chiang Mai

Have a flexible travel schedule? Discover the best time to fly to Chiang Mai from Portland 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 Portland to Chiang Mai

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

Currently, April is the cheapest month in which you can book a flight from Portland to Chiang Mai (average of $1,011). Flying from Portland to Chiang Mai in December is currently the most expensive (average of $1,678). 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 PDX to CNX?

Find hourly flight availability from Portland 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 April 29, 2025.

It’s typically best to fly out from Portland to Chiang Mai in the morning. Doing so could potentially save you 42% on the flight price compared to flying at noon, which is usually more expensive.

Rainfall in Chiang Mai by month

Plan your trip to Chiang Mai by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Chiang Mai ranges from 0.0 - 9.8 inches per month. September is typically the wettest month, when rainfall can reach 9.8 in. January is typically the driest time to visit Chiang Mai when rainfall is around 0.0 in.

Temperature in Chiang Mai by month

Plan your trip to Chiang Mai by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Chiang Mai, use this chart to help with planning. For those seeking warmer temperatures, April is the ideal time of year to visit, when temperatures reach an average of 84.2 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 69.8 F).

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 April 29, 2025.
Read reviews from past customers who have flown EVA Air, Delta and Cathay Pacific from Portland to Chiang Mai. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
EVA Air
8.4
Very good
1,186 reviews

Boarding

8.4

Comfort

8.3

Food

8.1

Entertainment

8.0

Crew

8.6

Overall

8.4

Reviews

1 / 20
10.0
Excellent

Dale,Apr 2025

SFO - TPE

Great experience. Check in process was excellent - both online and bag drop
EVA Air
8.4
Very good
1,186 reviews
EVA Air
8.4
Very good
1,186 reviews

Boarding

8.4

Comfort

8.3

Food

8.1

Entertainment

8.0

Crew

8.6

Overall

8.4

Reviews

1 / 20
10.0
Excellent

Dale,Apr 2025

SFO - TPE

Great experience. Check in process was excellent - both online and bag drop
Delta
8.0
Very good
7,929 reviews
EVA Air
8.4
Very good
1,186 reviews

Boarding

8.4

Comfort

8.3

Food

8.1

Entertainment

8.0

Crew

8.6

Overall

8.4

Reviews

1 / 20
10.0
Excellent

Dale,Apr 2025

SFO - TPE

Great experience. Check in process was excellent - both online and bag drop
Cathay Pacific
7.5
Good
852 reviews
EVA Air
8.4
Very good
1,186 reviews

Boarding

8.4

Comfort

8.3

Food

8.1

Entertainment

8.0

Crew

8.6

Overall

8.4

Reviews

1 / 20
10.0
Excellent

Dale,Apr 2025

SFO - TPE

Great experience. Check in process was excellent - both online and bag drop
Qatar Airways
7.4
Good
3,563 reviews
EVA Air
8.4
Very good
1,186 reviews

Boarding

8.4

Comfort

8.3

Food

8.1

Entertainment

8.0

Crew

8.6

Overall

8.4

Reviews

1 / 20
10.0
Excellent

Dale,Apr 2025

SFO - TPE

Great experience. Check in process was excellent - both online and bag drop
China Eastern
7.1
Good
148 reviews
EVA Air
8.4
Very good
1,186 reviews

Boarding

8.4

Comfort

8.3

Food

8.1

Entertainment

8.0

Crew

8.6

Overall

8.4

Reviews

1 / 20
10.0
Excellent

Dale,Apr 2025

SFO - TPE

Great experience. Check in process was excellent - both online and bag drop

Related info for your journey

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

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

    Our cheapest airline available from Portland to Chiang Mai is China Eastern. Our recent data shows that you can find tickets from as low as $1,050 on this airline. Additional options worth looking into are EVA Air and Qatar Airways, starting at $1,320 and $1,670 round-trip. Users have found that China Eastern is 27% cheaper than the other options available to this destination.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Portland 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 Portland to Chiang Mai?

    Currently, April is the cheapest month in which you can book a flight from Portland to Chiang Mai (average of $1,011). Flying from Portland to Chiang Mai in December is currently the most expensive (average of $1,678). 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 2 airlines flying from Portland to Chiang Mai

Discover the top 2 airlines that operate flights from Portland 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 April 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$1,062Average$1,300FlexibilityNo cancel feeOn-timeN/A
Korean AirCheapest$1,104Average$1,489FlexibilityNo cancel feeOn-time81%

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