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Cheap flights from Chiang Mai to Portland from $940

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Chiang Mai to Portland departing on 9/20. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Find the cheapest flights from Chiang Mai to Portland

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
2:35 pm - 7:11 pmCNX  Chiang Mai-PDX Portland
42h 36m2 stops Bangkok Suvarnabhumi Vancouver Intl
Multiple Airlines Logo
3:30 pm - 4:35 pmPDX  Portland-CNX Chiang Mai
35h 05m2 stops Vancouver Intl Singapore Changi
$940Multiple Airlines
Sun, Sep 20 - Sun, Sep 27
Air Canada Logo
5:35 pm - 9:31 amCNX  Chiang Mai-PDX Portland
29h 56m2 stops Singapore Changi Vancouver Intl
Air Canada Logo
7:45 pm - 8:45 amPDX  Portland-CNX Chiang Mai
23h 00m2 stops Vancouver Intl Bangkok Suvarnabhumi
$967Air Canada
Sat, Sep 19 - Sat, Sep 26
Multiple Airlines Logo
11:35 am - 9:07 amCNX  Chiang Mai-PDX Portland
35h 32m2 stops Taipei City Taiwan Taoyuan Intl San Francisco
Multiple Airlines Logo
6:50 pm - 10:25 amPDX  Portland-CNX Chiang Mai
25h 35m2 stops San Francisco Taipei City Taiwan Taoyuan Intl
$1,078Multiple Airlines
Mon, Sep 21 - Mon, Sep 28
Multiple Airlines Logo
11:35 am - 10:09 amCNX  Chiang Mai-PDX Portland
36h 34m2 stops Taipei City Taiwan Taoyuan Intl San Francisco
Multiple Airlines Logo
2:42 pm - 10:25 amPDX  Portland-CNX Chiang Mai
29h 43m2 stops San Francisco Taipei City Taiwan Taoyuan Intl
$1,078Multiple Airlines
Wed, Sep 23 - Wed, Sep 30
Air Canada Logo
9:10 pm - 7:11 pmCNX  Chiang Mai-PDX Portland
36h 01m3 stops Bangkok Suvarnabhumi Incheon Intl Vancouver Intl
Air Canada Logo
7:45 pm - 4:35 pmPDX  Portland-CNX Chiang Mai
30h 50m2 stops Vancouver Intl Singapore Changi
$1,106Air Canada
Sun, Sep 20 - Sun, Sep 27
Multiple Airlines Logo
5:20 pm - 8:54 amCNX  Chiang Mai-PDX Portland
29h 34m2 stops Taipei City Taiwan Taoyuan Intl San Francisco
Multiple Airlines Logo
7:03 am - 7:10 pmPDX  Portland-CNX Chiang Mai
46h 07m3 stops San Francisco Taipei City Taiwan Taoyuan Intl Bangkok Suvarnabhumi
$1,194Multiple Airlines
Sat, Sep 19 - Sat, Sep 26
Multiple Airlines Logo
11:35 am - 10:01 pmCNX  Chiang Mai-PDX Portland
24h 26m2 stops Taipei City Taiwan Taoyuan Intl Seattle/Tacoma Intl
Multiple Airlines Logo
6:50 pm - 7:10 pmPDX  Portland-CNX Chiang Mai
34h 20m3 stops San Francisco Taipei City Taiwan Taoyuan Intl Bangkok Suvarnabhumi
$1,310Multiple Airlines
Wed, Sep 23 - Wed, Sep 30
Multiple Airlines Logo
9:10 pm - 11:55 pmCNX  Chiang Mai-PDX Portland
40h 45m3 stops Bangkok Suvarnabhumi Taipei City Taiwan Taoyuan Intl Seattle/Tacoma Intl
Multiple Airlines Logo
10:30 am - 1:45 pmPDX  Portland-CNX Chiang Mai
37h 15m3 stops Seattle/Tacoma Intl Taipei City Taiwan Taoyuan Intl Bangkok Suvarnabhumi
$1,338Multiple Airlines
Sun, Sep 20 - Sun, Sep 27
Multiple Airlines Logo
1:40 pm - 11:55 pmCNX  Chiang Mai-PDX Portland
24h 15m3 stops Bangkok Suvarnabhumi Taipei City Taiwan Taoyuan Intl Seattle/Tacoma Intl
Multiple Airlines Logo
7:09 am - 10:25 amPDX  Portland-CNX Chiang Mai
37h 16m2 stops Seattle/Tacoma Intl Taipei City Taiwan Taoyuan Intl
$1,342Multiple Airlines
Mon, Sep 21 - Mon, Sep 28
Multiple Airlines Logo
9:25 am - 7:50 pmCNX  Chiang Mai-PDX Portland
24h 25m3 stops Bangkok Suvarnabhumi Taipei City Taiwan Taoyuan Intl Seattle/Tacoma Intl
Multiple Airlines Logo
2:42 pm - 1:45 pmPDX  Portland-CNX Chiang Mai
33h 03m3 stops San Francisco Taipei City Taiwan Taoyuan Intl Bangkok Suvarnabhumi
$1,350Multiple Airlines
Wed, Sep 23 - Wed, Sep 30

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Air Canada flights from Chiang Mai to Portland

Our best Air Canada deals on Chiang Mai to Portland flight tickets
Air Canada
Sep 19
CNX5:35 pmChiang Mai
29h 56m
2 stops
PDX9:31 amPortland
Sep 26
PDX7:45 pmPortland
23h 00m
2 stops
CNX8:45 amChiang Mai
$967
Air Canada
Sep 20
CNX9:10 pmChiang Mai
36h 01m
3 stops
PDX7:11 pmPortland
Sep 27
PDX7:45 pmPortland
30h 50m
2 stops
CNX4:35 pmChiang Mai
$1,106

Qatar Airways flights from Chiang Mai to Portland

Our best Qatar Airways deals on Chiang Mai to Portland flight tickets
Qatar Airways
Sep 21
CNX8:00 pmChiang Mai
38h 36m
3 stops
PDX8:36 pmPortland
Sep 28
PDX11:48 amPortland
33h 27m
3 stops
CNX11:15 amChiang Mai
$1,450
Qatar Airways
Sep 19
CNX8:00 pmChiang Mai
34h 50m
3 stops
PDX4:50 pmPortland
Sep 26
PDX12:39 pmPortland
32h 36m
3 stops
CNX11:15 amChiang Mai
$1,462

momondo Fare Finder

 
Customize your flight search to find flights from Chiang Mai to Portland 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, momondo users made 832,500 searches. Data last updated August 9, 2026.
Use the filters below to find and compare flights from Chiang Mai to Portland that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Chiang MaiPortland

CNX Chiang Mai - PDX Portland

CNXPDX

Chiang Mai

Sun 9/20

2:35 pm-7:11 pm

2 stops42h 36m

Portland

Sun 9/27

3:30 pm-4:35 pm

2 stops35h 05m

$940
Quickest round-trip

Chiang MaiPortland

CNX Chiang Mai - PDX Portland

CNXPDX

Chiang Mai

Sat 9/19

5:35 pm-9:31 am

2 stops29h 56m

Portland

Sat 9/26

7:45 pm-8:45 am

2 stops23h 00m

$967

Chiang MaiPortland

CNX Chiang Mai - PDX Portland

CNXPDX

Chiang Mai

Mon 9/21

11:35 am-9:07 am

2 stops35h 32m

Portland

Mon 9/28

6:50 pm-10:25 am

2 stops25h 35m

$1,078

Chiang MaiPortland

CNX Chiang Mai - PDX Portland

CNXPDX

Chiang Mai

Wed 9/23

11:35 am-10:09 am

2 stops36h 34m

Portland

Wed 9/30

2:42 pm-10:25 am

2 stops29h 43m

$1,078

Chiang MaiPortland

CNX Chiang Mai - PDX Portland

CNXPDX

Chiang Mai

Sun 9/20

9:10 pm-7:11 pm

3 stops36h 01m

Portland

Sun 9/27

7:45 pm-4:35 pm

2 stops30h 50m

$1,106

Chiang MaiPortland

CNX Chiang Mai - PDX Portland

CNXPDX

Chiang Mai

Sat 9/19

5:20 pm-8:54 am

2 stops29h 34m

Portland

Sat 9/26

7:03 am-7:10 pm

3 stops46h 07m

$1,194

Chiang MaiPortland

CNX Chiang Mai - PDX Portland

CNXPDX

Chiang Mai

Wed 9/23

11:35 am-10:01 pm

2 stops24h 26m

Portland

Wed 9/30

6:50 pm-7:10 pm

3 stops34h 20m

$1,310

Chiang MaiPortland

CNX Chiang Mai - PDX Portland

CNXPDX

Chiang Mai

Sun 9/20

9:10 pm-11:55 pm

3 stops40h 45m

Portland

Sun 9/27

10:30 am-1:45 pm

3 stops37h 15m

$1,338

Chiang MaiPortland

CNX Chiang Mai - PDX Portland

CNXPDX

Chiang Mai

Mon 9/21

1:40 pm-11:55 pm

3 stops24h 15m

Portland

Mon 9/28

7:09 am-10:25 am

2 stops37h 16m

$1,342

Chiang MaiPortland

CNX Chiang Mai - PDX Portland

CNXPDX

Chiang Mai

Wed 9/23

9:25 am-7:50 pm

3 stops24h 25m

Portland

Wed 9/30

2:42 pm-1:45 pm

3 stops33h 03m

$1,350

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

When to book flights from Chiang Mai to Portland

Are you open to changing your travel dates? Check out the ideal times to fly from Chiang Mai to Portland according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Chiang Mai to Portland (CNX to PDX) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Chiang Mai to Portland

Fastest flight time

35h 32m

Direct flights

None
The fastest flight from Chiang Mai to Portland takes 35h 32m
There are no direct flights from Chiang Mai to Portland. There are no popular flight routes from Chiang Mai to Portland.
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Frequently asked questions about flying from Chiang Mai to Portland

  • How far is Chiang Mai to Portland by plane?

    There are 7278.1 mi between Chiang Mai and Portland. A reasonable flight in good conditions will take 35h 32m.

  • When did momondo last update prices for flights from Chiang Mai Airport to Portland Airport?

    Prices for flights from Chiang Mai Airport to Portland Airport were last updated today.

  • How old do you have to be to fly from Chiang Mai Airport to Portland Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Chiang Mai Airport to Portland Airport.

  • What documentation or ID do you need to fly to Portland Airport?

    The travel and health documents required for your trip to Portland Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Portland Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Frequently asked questions about flying from Chiang Mai to Portland

  • How do I get Price Alerts for flights from Chiang Mai to Portland?

    Price Alerts will notify you by email when the price for flights to Portland from Chiang Mai decreases. To activate this, select your desired travel dates and search for offers. While browsing through offers you’ll see the Price Alert widget toggle. Click it to turn on notifications.

  • How can I save money on flights from Chiang Mai to Portland with momondo?

    By using tools like our “Price Calendar”, you can see the best day to fly round-trip for your travels. Our “Price Forecast” tool uses AI to predict whether you should purchase or hold off on booking for potentially cheaper prices. Explore shows you all flight options from a city or airport to build your own unique adventure. The Discover blog also provides valuable insights for saving money while booking your experience. After searching you can toggle on “Price Alerts” to track prices for your desired flight and book at the ideal moment.

  • How does momondo find its flight prices?

    We aggregate our prices from over 700+ competitors from airlines to OTAs. We operate in over 30 markets worldwide to show you a wide range of travel options.

Traveling to a place near Portland?

Book flights to Portland if you plan to visit one of these locations
Lincoln City
Seaside
Vancouver
Cannon Beach
Salem
Astoria
Long Beach
Beaverton
Rockaway Beach
Hillsboro
Tigard
Depoe Bay
Longview
Hood River
Newberg
Clackamas
Troutdale
Gresham
Kelso
Wilsonville

Why use momondo?

Why should I use momondo to find a flight deal from Chiang Mai to Portland?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Portland from Chiang Mai.

Can I find flights from Chiang Mai to Portland with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Portland from Chiang Mai with this policy.

How can momondo help me find flights from Chiang Mai to Portland?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Portland from Chiang Mai.

I’m not ready to book a flight from Chiang Mai to Portland right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Portland from Chiang Mai. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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