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Cheap flights from Portland to Bangkok 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 Bangkok 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.
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0 bags

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Find the cheapest flights from Portland to Bangkok

Cheap round-trip flights

Enter your travel dates to find the best prices.
EVA Air Logo
7:05 am - 11:40 pm
PDX
-
BKK
25h 35m
2 stops
EVA Air Logo
12:45 pm - 8:34 pm
BKK
-
PDX
21h 49m
2 stops
$889EVA Air
Thu, Feb 19 - Wed, Mar 11
Cathay Pacific Logo
5:50 pm - 10:40 am
PDX
-
BKK
25h 50m
2 stops
Cathay Pacific Logo
7:15 pm - 8:42 am
BKK
-
PDX
28h 27m
2 stops
$891Cathay Pacific
Thu, Feb 19 - Sat, Mar 7
Multiple Airlines Logo
1:52 pm - 12:10 pm
PDX
-
BKK
32h 18m
2 stops
Multiple Airlines Logo
8:15 pm - 9:30 am
BKK
-
PDX
27h 15m
2 stops
$892Multiple Airlines
Sun, May 10 - Sat, May 23
Multiple Airlines Logo
2:48 pm - 12:10 pm
PDX
-
BKK
31h 22m
2 stops
Multiple Airlines Logo
5:30 pm - 12:11 am
BKK
-
PDX
20h 41m
2 stops
$894Multiple Airlines
Sun, May 17 - Sat, May 30
ANA Logo
10:10 am - 5:05 am
PDX
-
BKK
28h 55m
1 stop
ANA Logo
7:05 am - 2:45 pm
BKK
-
PDX
21h 40m
1 stop
$901ANA
Wed, May 6 - Wed, May 20
Multiple Airlines Logo
5:49 pm - 9:45 am
PDX
-
BKK
25h 56m
2 stops
Multiple Airlines Logo
5:30 pm - 9:35 am
BKK
-
PDX
30h 05m
2 stops
$902Multiple Airlines
Tue, Mar 31 - Tue, Apr 14
China Airlines Logo
8:30 am - 9:50 am
PDX
-
BKK
34h 20m
2 stops
China Airlines Logo
3:35 am - 8:35 am
BKK
-
PDX
44h 00m
2 stops
$904China Airlines
Sun, Feb 22 - Sat, Mar 7
ANA Logo
7:15 am - 5:05 am
PDX
-
BKK
31h 50m
2 stops
ANA Logo
7:05 am - 7:05 pm
BKK
-
PDX
26h 00m
1 stop
$905ANA
Mon, Apr 20 - Mon, May 11
EVA Air Logo
7:05 am - 11:30 pm
PDX
-
BKK
26h 25m
2 stops
EVA Air Logo
1:35 am - 1:26 pm
BKK
-
PDX
25h 51m
2 stops
$907EVA Air
Tue, Mar 31 - Wed, Apr 29
EVA Air Logo
7:05 am - 11:40 pm
PDX
-
BKK
25h 35m
2 stops
EVA Air Logo
4:45 pm - 11:44 pm
BKK
-
PDX
20h 59m
2 stops
$908EVA Air
Thu, Mar 5 - Thu, Apr 9

Cathay Pacific flights from Portland to Bangkok

Our best Cathay Pacific deals on Portland to Bangkok flight tickets
Cathay Pacific
Feb 19
PDX2:47 pmPortland
28h 53m
2 stops
BKK10:40 amBangkok Suvarnabhumi
Mar 7
BKK3:05 pmBangkok Suvarnabhumi
32h 37m
2 stops
PDX8:42 amPortland
$891
Cathay Pacific
Feb 15
PDX7:05 amPortland
37h 10m
2 stops
BKK11:15 amBangkok Suvarnabhumi
Feb 26
BKK7:15 pmBangkok Suvarnabhumi
36h 35m
2 stops
PDX4:50 pmPortland
$1,090
Cathay Pacific
Feb 10
PDX5:51 pmPortland
26h 24m
2 stops
BKK11:15 amBangkok Suvarnabhumi
Feb 24
BKK1:05 pmBangkok Suvarnabhumi
22h 29m
2 stops
PDX8:34 pmPortland
$1,182

Air Canada flights from Portland to Bangkok

Our best Air Canada deals on Portland to Bangkok flight tickets
Air Canada
Apr 11
PDX3:15 pmPortland
23h 50m
1 stop
BKK5:05 amBangkok Suvarnabhumi
May 27
BKK7:05 amBangkok Suvarnabhumi
16h 25m
1 stop
PDX9:30 amPortland
$913
Air Canada
May 6
PDX7:45 pmPortland
19h 20m
1 stop
BKK5:05 amBangkok Suvarnabhumi
May 18
BKK7:05 amBangkok Suvarnabhumi
21h 40m
1 stop
PDX2:45 pmPortland
$918
Air Canada
May 6
PDX3:25 pmPortland
23h 40m
1 stop
BKK5:05 amBangkok Suvarnabhumi
May 18
BKK7:05 amBangkok Suvarnabhumi
21h 40m
1 stop
PDX2:45 pmPortland
$919

momondo Fare Finder

 
Customize your flight search to find flights from Portland to Bangkok 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 8, 2026.
Use the filters below to find and compare flights from Portland to Bangkok that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Thu 2/19

7:05 am-11:40 pm

2 stops25h 35m

Bangkok Suvarnabhumi

Wed 3/11

12:45 pm-8:34 pm

2 stops21h 49m

$889

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Thu 2/19

5:50 pm-10:40 am

2 stops25h 50m

Bangkok Suvarnabhumi

Sat 3/7

7:15 pm-8:42 am

2 stops28h 27m

$891

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Sun 5/10

1:52 pm-12:10 pm

2 stops32h 18m

Bangkok Suvarnabhumi

Sat 5/23

8:15 pm-9:30 am

2 stops27h 15m

$892

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Sun 5/17

2:48 pm-12:10 pm

2 stops31h 22m

Bangkok Suvarnabhumi

Sat 5/30

5:30 pm-12:11 am

2 stops20h 41m

$894

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Wed 5/6

10:10 am-5:05 am

1 stop28h 55m

Bangkok Suvarnabhumi

Wed 5/20

7:05 am-2:45 pm

1 stop21h 40m

$901

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Tue 3/31

5:49 pm-9:45 am

2 stops25h 56m

Bangkok Suvarnabhumi

Tue 4/14

5:30 pm-9:35 am

2 stops30h 05m

$902

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Sun 2/22

8:30 am-9:50 am

2 stops34h 20m

Bangkok Suvarnabhumi

Sat 3/7

3:35 am-8:35 am

2 stops44h 00m

$904

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Mon 4/20

7:15 am-5:05 am

2 stops31h 50m

Bangkok Suvarnabhumi

Mon 5/11

7:05 am-7:05 pm

1 stop26h 00m

$905

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Tue 3/31

7:05 am-11:30 pm

2 stops26h 25m

Bangkok Suvarnabhumi

Wed 4/29

1:35 am-1:26 pm

2 stops25h 51m

$907

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-11:44 pm

2 stops20h 59m

$908

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 Bangkok from

How to get the cheapest flight ticket from Portland to Bangkok

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 Bangkok?

If you aren’t able to travel during the month of August, then book flights to Bangkok from Portland during October instead. Flights to Bangkok in October, while not as cheap as those in August, still average around $958.

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

You are more likely to see cheaper flights to Bangkok from Portland when booking weeks ahead of your departure date. In general, you can expect to find flights to Bangkok 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 Bangkok from Portland for as low as $932 on momondo.

Cheap Portland to Bangkok flight deals and tips

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

Fastest flight time

19h 20m

Direct flights

None
The fastest flight from Portland to Bangkok takes 19h 20m
There are no direct flights from Portland to Bangkok. There are no popular flight routes from Portland to Bangkok.
Search flight deals

  • How far is Portland to Bangkok by plane?

    The distance between Portland and Bangkok is about 7529.0 mi. 19h 20m is a normal flight duration for this route.

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

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

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

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

    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 Bangkok.

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

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

Best airlines flying from Portland to Bangkok

Compare and see reviews for airlines that fly from Portland to Bangkok with momondo
Airline
Rating
Free Cancellation
Price
DeltaPriceFrom $139Free CancellationRating
7.9
8,173 reviews
Search Delta flights
STARLUX AirlinesPriceFrom $757Free CancellationRating
8.9
271 reviews
Search STARLUX Airlines flights
Singapore AirlinesPriceFrom $759Free CancellationRating
8.2
1,451 reviews
Search Singapore Airlines flights
Japan AirlinesPriceFrom $776Free CancellationRating
8.3
1,701 reviews
Search Japan Airlines flights
China AirlinesPriceFrom $781Free CancellationRating
8.3
803 reviews
Search China Airlines flights
ANAPriceFrom $785Free CancellationRating
8.4
1,089 reviews
Search ANA flights
Korean AirPriceFrom $795Free CancellationRating
8.4
1,188 reviews
Search Korean Air flights
United AirlinesPriceFrom $821Free CancellationRating
7.4
9,255 reviews
Search United Airlines flights
Qatar AirwaysPriceFrom $864Free CancellationRating
7.4
3,728 reviews
Search Qatar Airways flights
EVA AirPriceFrom $896Free CancellationRating
8.4
1,347 reviews
Search EVA Air flights

Why use momondo?

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

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

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

All flight searches from Portland to Bangkok on momondo can be filtered to show those which offer flexible booking policies.

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

Once all potential Portland to Bangkok flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

Of course. momondo tracks the price of Portland to Bangkok flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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Find better results for your trip to Thailand

Fly into one of these airports located in Bangkok

Airports listed have a maximum distance of 15.4 mi from Bangkok
Bangkok Suvarnabhumi Airport
Bangkok Don Mueang Intl Airport