$1,151 Cheap Flights from Chiang Mai (CNX) to Portland (PWM)

View $1,151 flight on Tue, Feb 10, 2026Opens in a new window

Popular airlines from Chiang Mai Intl. Airport (CNX) to Portland Intl. Jetport Airport (PWM)

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Cheap Flights from Chiang Mai to Portland (CNX-PWM)

Prices were available within the past 7 days and start at $1,151 for one-way flights and for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Flights from Chiang Mai (CNX) to Portland (PWM)
Origin airport
Chiang Mai Intl.
Destination airport
Portland Intl. Jetport
Distance
8070 mi

Chiang Mai to Portland Flights

The cheapest times to fly from Chiang Mai to Portland

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Chiang Mai to Portland are during the month of . You can find some of the cheapest flights from Chiang Mai to Portland with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Chiang Mai to Portland

Sunday is one of the best days to book for cheap flights from Chiang Mai to Portland: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Chiang Mai to Portland

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Chiang Mai to Portland in 2025. You can also book with separate airlines for your outbound and return journeys, from $1,151 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Chiang Mai to Portland flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Chiang Mai to Portland airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much is a flight from CNX to PWM?
The lowest price advertised for a round-trip journey between Chiang Mai Intl. Airport (CNX) and Portland Intl. Jetport Airport (PWM) is . But you better act soon. This figure is taken from fares offered within the last 7 days on Expedia for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from Chiang Mai Intl. Airport (CNX) to PWM?
Most flights can be canceled online, but whether or not you are charged a fee depends on your airline. If you do need to cancel your getaway, follow the easy instructions in the Customer Service Portal.
How do I find cheap flights from Chiang Mai Airport to Portland Intl. Jetport that have flexible change policies?
Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you're searching for Chiang Mai Airport to PWM flights, you'll see a "no change fees" filter for you to select.
How far is the flight from Chiang Mai Intl. Airport (CNX) to Portland Intl. Jetport?
The distance is around 8080 mi, so pack your carry-on luggage with everything you need to make the long journey comfortable. Not sure what to take on board your Chiang Mai to Portland flight? A sleep mask, earplugs and a travel pillow are among the essentials.
Which airlines fly direct from Chiang Mai Airport to Portland Intl. Jetport Airport (PWM)?
Flying nonstop between Chiang Mai Airport and Portland Intl. Jetport isn't possible at present. However, you'll still be able to find a flight to Portland with at least one stop.
Are Chiang Mai Intl. Airport (CNX) to Portland Intl. Jetport flight tickets cheaper when they're purchased at the last minute?
Tickets from Chiang Mai Airport to Portland Intl. Jetport are available up to a year before departure on Expedia. And although you may score a great last-minute deal, it's not something you should bank on. Also, booking your flights ahead of time means you'll have more choices --- and you can avoid ending up with the dreaded middle seat! We're constantly updating our fares to bring you the best bargains, so check back often for all the latest specials.

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