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Cheap flights from Portland to Thailand from $344

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Portland to Thailand departing on 3/5. 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
0 bags

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Find the cheapest flights from Portland to Thailand

Cheap round-trip flights

Enter your travel dates to find the best prices.
Singapore Airlines Logo
5:00 am - 7:15 pm
PDX
-
HKT
24h 15m
2 stops
Singapore Airlines Logo
8:10 pm - 4:50 pm
HKT
-
PDX
34h 40m
2 stops
$814Singapore Airlines
Tue, May 26 - Wed, Jun 3
Cathay Pacific Logo
9:30 pm - 11:20 am
PDX
-
HKT
46h 50m
2 stops
Cathay Pacific Logo
12:20 pm - 9:42 am
HKT
-
PDX
35h 22m
2 stops
$816Cathay Pacific
Sun, Mar 1 - Mon, Mar 9
Cathay Pacific Logo
9:30 pm - 11:20 am
PDX
-
HKT
46h 50m
2 stops
Cathay Pacific Logo
6:35 pm - 9:42 am
HKT
-
PDX
29h 07m
2 stops
$821Cathay Pacific
Sun, Mar 1 - Mon, Mar 9
Cathay Pacific Logo
9:48 pm - 11:20 am
PDX
-
HKT
46h 32m
2 stops
Cathay Pacific Logo
12:20 pm - 9:50 am
HKT
-
PDX
35h 30m
2 stops
$833Cathay Pacific
Sat, Mar 7 - Tue, Mar 17
STARLUX Airlines Logo
3:52 pm - 3:55 pm
PDX
-
CNX
33h 03m
2 stops
STARLUX Airlines Logo
4:55 pm - 10:41 pm
CNX
-
PDX
43h 46m
2 stops
$841STARLUX Airlines
Thu, Mar 5 - Thu, Mar 12
EVA Air Logo
7:05 am - 11:40 pm
PDX
-
BKK
25h 35m
2 stops
EVA Air Logo
2:15 am - 10:56 am
BKK
-
PDX
22h 41m
2 stops
$889EVA Air
Thu, Feb 19 - Tue, Mar 10
Air Canada Logo
9:50 am - 5:05 am
PDX
-
BKK
29h 15m
1 stop
Air Canada Logo
8:15 pm - 9:30 am
BKK
-
PDX
27h 15m
2 stops
$896Air Canada
Wed, Apr 22 - Wed, May 6
China Airlines Logo
9:48 pm - 9:50 am
PDX
-
BKK
45h 02m
2 stops
China Airlines Logo
10:55 am - 9:35 am
BKK
-
PDX
36h 40m
2 stops
$897China Airlines
Sat, Feb 28 - Sat, Mar 14
EVA Air Logo
7:05 am - 11:40 pm
PDX
-
BKK
25h 35m
2 stops
EVA Air Logo
4:45 pm - 9:38 pm
BKK
-
PDX
18h 53m
2 stops
$908EVA Air
Thu, Mar 5 - Thu, Apr 9
China Airlines Logo
1:36 pm - 9:50 am
PDX
-
BKK
29h 14m
2 stops
China Airlines Logo
10:55 am - 10:56 am
BKK
-
PDX
39h 01m
2 stops
$912China Airlines
Sun, Feb 15 - Fri, Feb 27

Air Canada flights from Portland to Thailand

Our best Air Canada deals on Portland to Thailand flight tickets
Air Canada
Apr 22
PDX9:50 amPortland
29h 15m
1 stop
BKK5:05 amBangkok Suvarnabhumi
May 6
BKK8:15 pmBangkok Suvarnabhumi
27h 15m
2 stops
PDX9:30 amPortland
$896
Air Canada
Apr 11
PDX9:50 amPortland
29h 15m
1 stop
BKK5:05 amBangkok Suvarnabhumi
May 27
BKK7:05 amBangkok Suvarnabhumi
26h 00m
1 stop
PDX7:05 pmPortland
$913
Air Canada
Apr 11
PDX9:50 amPortland
29h 15m
1 stop
BKK5:05 amBangkok Suvarnabhumi
May 27
BKK7:05 amBangkok Suvarnabhumi
16h 25m
1 stop
PDX9:30 amPortland
$920

United Airlines flights from Portland to Thailand

Our best United Airlines deals on Portland to Thailand flight tickets
United Airlines
Mar 2
PDX3:50 pmPortland
28h 35m
3 stops
BKK11:25 amBangkok Suvarnabhumi
Mar 9
BKK4:55 pmBangkok Suvarnabhumi
33h 38m
2 stops
PDX12:33 pmPortland
$959
United Airlines
Feb 22
PDX7:57 pmPortland
42h 13m
2 stops
BKK5:10 amBangkok Suvarnabhumi
Mar 8
BKK4:55 pmBangkok Suvarnabhumi
33h 38m
2 stops
PDX11:33 amPortland
$961
United Airlines
Mar 5
PDX7:30 amPortland
36h 55m
2 stops
BKK11:25 amBangkok Suvarnabhumi
Apr 22
BKK3:45 pmBangkok Suvarnabhumi
40h 22m
3 stops
PDX6:07 pmPortland
$971

momondo Fare Finder

 
Customize your flight search to find flights from Portland to Thailand 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 February 4, 2026.
Use the filters below to find and compare flights from Portland to Thailand that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

PortlandPhuket City

PDX - HKT

PDXHKT

Portland

Tue 5/26

5:00 am-7:15 pm

2 stops24h 15m

Phuket City

Wed 6/3

8:10 pm-4:50 pm

2 stops34h 40m

$814

PortlandPhuket City

PDX - HKT

PDXHKT

Portland

Sun 3/1

9:30 pm-11:20 am

2 stops46h 50m

Phuket City

Mon 3/9

12:20 pm-9:42 am

2 stops35h 22m

$816

PortlandPhuket City

PDX - HKT

PDXHKT

Portland

Sun 3/1

9:30 pm-11:20 am

2 stops46h 50m

Phuket City

Mon 3/9

6:35 pm-9:42 am

2 stops29h 07m

$821

PortlandPhuket City

PDX - HKT

PDXHKT

Portland

Sat 3/7

9:48 pm-11:20 am

2 stops46h 32m

Phuket City

Tue 3/17

12:20 pm-9:50 am

2 stops35h 30m

$833

PortlandChiang Mai

PDX - CNX

PDXCNX

Portland

Thu 3/5

3:52 pm-3:55 pm

2 stops33h 03m

Chiang Mai

Thu 3/12

4:55 pm-10:41 pm

2 stops43h 46m

$841

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Thu 2/19

7:05 am-11:40 pm

2 stops25h 35m

Bangkok Suvarnabhumi

Tue 3/10

2:15 am-10:56 am

2 stops22h 41m

$889

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Wed 4/22

9:50 am-5:05 am

1 stop29h 15m

Bangkok Suvarnabhumi

Wed 5/6

8:15 pm-9:30 am

2 stops27h 15m

$896

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Sat 2/28

9:48 pm-9:50 am

2 stops45h 02m

Bangkok Suvarnabhumi

Sat 3/14

10:55 am-9:35 am

2 stops36h 40m

$897

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Thu 3/5

7:05 am-11:40 pm

2 stops25h 35m

Bangkok Suvarnabhumi

Thu 4/9

4:45 pm-9:38 pm

2 stops18h 53m

$908

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Sun 2/15

1:36 pm-9:50 am

2 stops29h 14m

Bangkok Suvarnabhumi

Fri 2/27

10:55 am-10:56 am

2 stops39h 01m

$912

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Thailand from

How to get the cheapest flight ticket from Portland to Thailand

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Thailand?

The month of August is, on average, the cheapest month to fly to Thailand from Portland, with most prices found around $947. If you are unable to visit Thailand during the month of August, then departing from Portland during the month October is also very affordable. Most momondo users find prices during this month for around $958.

How far in advance should I book a flight to Thailand?

You are more likely to see cheaper flights to Thailand from Portland when booking weeks ahead of your departure date. In general, you can expect to find flights to Thailand for around $1,086 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Thailand from Portland for as low as $932 on momondo.

Cheap Portland to Thailand flight deals and tips

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

Fastest flight time

21h 15m

Direct flights

None
The fastest flight from Portland to Thailand takes 21h 15m
There are no direct flights from Portland to Thailand. There are no popular flight routes from Portland to Thailand.
Search flight deals

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

    Prices for flights from Portland Airport to Thailand are updated daily.

  • How many operators does momondo search for flights from Portland Airport to Thailand?

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

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Portland Airport to Thailand.

  • What documentation or ID do you need to fly to Thailand?

    The travel and health documents required for your trip to Thailand 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 Thailand. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Best airlines flying from Portland to Thailand

Compare and see reviews for airlines that fly from Portland to Thailand with momondo
Airline
Rating
Free Cancellation
Price
DeltaPriceFrom $139Free CancellationRating
7.9
8,144 reviews
Search Delta flights
STARLUX AirlinesPriceFrom $757Free CancellationRating
8.9
269 reviews
Search STARLUX Airlines flights
Singapore AirlinesPriceFrom $759Free CancellationRating
8.2
1,448 reviews
Search Singapore Airlines flights
Japan AirlinesPriceFrom $776Free CancellationRating
8.3
1,697 reviews
Search Japan Airlines flights
China AirlinesPriceFrom $781Free CancellationRating
8.3
803 reviews
Search China Airlines flights
ANAPriceFrom $785Free CancellationRating
8.4
1,085 reviews
Search ANA flights
Korean AirPriceFrom $795Free CancellationRating
8.4
1,188 reviews
Search Korean Air flights
United AirlinesPriceFrom $821Free CancellationRating
7.4
9,235 reviews
Search United Airlines flights
Qatar AirwaysPriceFrom $864Free CancellationRating
7.4
3,730 reviews
Search Qatar Airways flights
EVA AirPriceFrom $896Free CancellationRating
8.4
1,344 reviews
Search EVA Air flights

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Portland to Thailand. momondo saves you time and could save you money on your trip.

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

Flights from Portland to Thailand with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Portland to Thailand?

Once you have performed a search for Portland to Thailand flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

If you are simply researching potential flights to Thailand, momondo offers a useful price alert feature which will track prices for flights to Thailand from Portland and alert you when they change.

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