Cheap flights from Portland (PDX) to Chiang Mai (CNX)

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The best prices from Portland to Chiang Mai are usually found in May or March, booked 51 days in advance, depart on a Tuesday or Wednesday and return on a Monday

How to find the cheapest flight from
Portland (PDX) to Chiang Mai (CNX)

All the information you need to plan the best PDX to CNX flight in 2021: compare Portland to Chiang Mai flight prices with the expected peak season, weather and rainfall in Chiang Mai.
PDX - CNX
Price
$815 - $1,228
CNX
Temperature
69.8 - 84.2 °F
CNX
Precipitation
0 - 9.8 inches

Popular in

December

High demand for flights, 23% potential price rise

Cheapest in

May

Best time to find cheap flights, 13% potential price drop

Average price

$853

Average for round-trip flights in October 2021

Round-trip from

$815

From Portland to Chiang Mai

Flight route prices based on searches on Cheapflights within the last 3 days, monthly prices based on aggregated historical data.
When is the cheapest time to fly from Portland to Chiang Mai (PDX - CNX)?

It’s typically best to fly out from Portland to Chiang Mai in the afternoon. Doing so could potentially save you 16% on the flight price compared to flying in the morning, which is usually more expensive.

What is the cheapest month to fly from Portland to Chiang Mai?

Flights from Portland to Chiang Mai lean towards being more expensive in December. Prices are generally better when you fly from Portland to Chiang Mai in May, with the cheapest ticket starting at $722.

What is the cheapest day to fly round-trip from Portland to Chiang Mai?

It’s generally more expensive to depart on a Monday, if you have to leave on this day you can still search on Cheapflights to find great options that meet your needs.

How far in advance should I book a flight from Portland to Chiang Mai?

When searching for a good deal, it’s best to be prepared for potential fluctuations in price. We recommend booking at least 48 days in advance, which can save you up to 24% on flights from Portland to Chiang Mai compared to booking the week you need them. Waiting 48 days out may not be for everyone, so we have options available for flights within the next two weeks, with the lowest price starting at $1,070. For sooner than that we have options available in the next 3 days from $1,233.

Cheap flights from Portland to Chiang Mai in October, November 2021

The best prices found for PDX to CNX flights for October, November
9 Nov - 9 Feb
$1,053pp
PDX
Portland
Multiple Airlines
     
3 STOPS
CNX
Chiang Mai
CNX
Chiang Mai
Multiple Airlines
     
3 STOPS
PDX
Portland
9 Nov - 9 Feb
$1,054pp
PDX
Portland
Multiple Airlines
     
3 STOPS
CNX
Chiang Mai
CNX
Chiang Mai
Multiple Airlines
     
3 STOPS
PDX
Portland

Portland to Chiang Mai 2021 flight deals

Cheap flights to Chiang Mai from Portland found for this year
9 Nov - 9 Feb
$1,053pp
PDX
Portland
Multiple Airlines
     
3 STOPS
CNX
Chiang Mai
CNX
Chiang Mai
Multiple Airlines
     
3 STOPS
PDX
Portland
9 Nov - 9 Feb
$1,054pp
PDX
Portland
Multiple Airlines
     
3 STOPS
CNX
Chiang Mai
CNX
Chiang Mai
Multiple Airlines
     
3 STOPS
PDX
Portland
29 Dec - 3 Jan
$1,668pp
PDX
Portland
Multiple Airlines
     
3 STOPS
CNX
Chiang Mai
CNX
Chiang Mai
Multiple Airlines
     
3 STOPS
PDX
Portland

Related info for your journey

Useful info, stats and facts about <span class="emphasized">Portland</span> to <span class="emphasized">Chiang Mai</span> flights.

Flight FAQs

From Portland to Chiang Mai

Which airlines flying from Portland to Chiang Mai have flexible cancellations due to COVID-19?

Some of the carriers operating flights from Portland to Chiang Mai that may be offering flexible cancellation policies are Delta, Korean Air, and Cathay Pacific. Our site will let you filter for all airlines offering greater flexibility due to COVID-19.

Can I find flights from Portland to Chiang Mai for under $1,100 on Cheapflights?

Yes, there are multiple flights from Portland to Chiang Mai for under $1,100. The cheapest flight booked recently is on Multiple Airlines for just $1,053, but on average you can expect to pay $2,404.

What is the cheapest airline to fly from Portland to Chiang Mai round-trip?

Our cheapest airline available from Portland to Chiang Mai is Japan Airlines. Our recent data shows that you can find tickets from as low as $1,210 on this airline.

What are the most popular airlines that fly from Portland to Chiang Mai?

The most popular airlines flying from Portland to Chiang Mai are Cathay Pacific, Delta and Korean Air. Something to consider prior to booking your flight.

What are the cheapest flights from Portland to Chiang Mai?

The cheapest flight price from Portland to Chiang Mai is $446. On average you can expect to pay $1,399. The most popular route, (Portland - Chiang Mai), can usually be booked for $1,053.

COVID Restrictions

View COVID Travel Restrictions for Chiang Mai, Thailand

Do I need a COVID test to fly to Chiang Mai from Portland?

Information is based on travel restrictions from Portland to Chiang Mai

Most visitors from Portland need to provide a negative COVID-19 test result and/or quarantine to enter Chiang Mai.

COVID-19 testing requirements
Visitors from Portland must present a negative RT-PCR (NAAT) test taken 72 hours before departing to Chiang Mai.

Quarantine requirements
Visitors from Portland are not required to quarantine after entering Chiang Mai.

Do I need a test to fly back to Portland from Chiang Mai?

Returning to Portland from Chiang Mai

COVID-19 testing requirements
Visitors from Chiang Mai must present a negative RT-PCR (NAAT) or Antigen (quick-test) test taken 72 hours before departing to Portland.

Quarantine requirements
Visitors from Chiang Mai are not required to quarantine after entering Portland.

Hide COVID Travel Restrictions for Chiang Mai, Thailand

Alternative routes for Portland to Chiang Mai

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

Destination information for Chiang Mai

Things to know before you go - useful duration and weather info for your trip from Portland to Chiang Mai.
Today's exchange rate
$1 = ฿33.35
Average temperature for October in Chiang Mai
87.8 °F
Avg rainfall for October in Chiang Mai
4.5 ″

Airports servicing Portland

Airports servicing Chiang Mai

Top 3 airlines flying from Portland to Chiang Mai

The chart below displays the airlines Cheapflights users traveling from Portland to Chiang Mai choose most often. Cheapest and average prices are based on aggregated data from the past 12 months.
Airline Cheapest Average Flexibility On-time COVID-19 safety
Korean Air
$718 $1,083 No cancel fee 81%
Delta
$828 $1,053 No cancel fee N/A
Cathay Pacific
$908 $1,010 No cancel fee 72%
Home Asia Thailand Chiang Mai Cheap flights from Portland to Chiang Mai