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Cheap flights from Portland to Bangkok from $427

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 9/2. 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

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Portland to Bangkok

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
7:35 pm - 12:05 pm
PDX
-
BKK
25h 30m
2 stops
Multiple Airlines Logo
8:25 am - 9:26 am
BKK
-
PDX
16h 01m
1 stop
$949Multiple Airlines
Mon, Nov 16 - Tue, Jan 19
Multiple Airlines Logo
7:35 pm - 12:05 pm
PDX
-
BKK
25h 30m
2 stops
Multiple Airlines Logo
9:40 am - 2:41 pm
BKK
-
PDX
20h 01m
2 stops
$955Multiple Airlines
Mon, Nov 16 - Tue, Jan 19
Multiple Airlines Logo
5:41 pm - 12:10 pm
PDX
-
BKK
28h 29m
2 stops
Multiple Airlines Logo
2:35 am - 2:51 pm
BKK
-
PDX
26h 16m
2 stops
$956Multiple Airlines
Thu, Oct 1 - Wed, Oct 14
Multiple Airlines Logo
7:37 pm - 12:05 pm
PDX
-
BKK
26h 28m
2 stops
Multiple Airlines Logo
8:25 am - 2:41 pm
BKK
-
PDX
21h 16m
1 stop
$976Multiple Airlines
Thu, Oct 29 - Fri, Nov 13
Multiple Airlines Logo
7:37 pm - 12:05 pm
PDX
-
BKK
26h 28m
2 stops
Multiple Airlines Logo
8:25 am - 2:41 pm
BKK
-
PDX
21h 16m
1 stop
$977Multiple Airlines
Thu, Oct 29 - Fri, Nov 13
Multiple Airlines Logo
7:37 pm - 12:05 pm
PDX
-
BKK
26h 28m
2 stops
Multiple Airlines Logo
9:40 am - 6:31 pm
BKK
-
PDX
23h 51m
2 stops
$982Multiple Airlines
Thu, Oct 29 - Fri, Nov 13
Multiple Airlines Logo
7:37 pm - 12:05 pm
PDX
-
BKK
26h 28m
2 stops
Multiple Airlines Logo
9:40 am - 6:31 pm
BKK
-
PDX
23h 51m
2 stops
$984Multiple Airlines
Thu, Oct 29 - Fri, Nov 13
Multiple Airlines Logo
7:35 pm - 12:05 pm
PDX
-
BKK
25h 30m
2 stops
Multiple Airlines Logo
8:00 pm - 9:26 am
BKK
-
PDX
28h 26m
2 stops
$988Multiple Airlines
Mon, Nov 16 - Fri, Jan 15
Multiple Airlines Logo
5:30 pm - 8:55 am
PDX
-
BKK
25h 25m
2 stops
Multiple Airlines Logo
1:25 pm - 8:28 am
BKK
-
PDX
33h 03m
2 stops
$1,007Multiple Airlines
Tue, Jul 21 - Tue, Oct 20
Multiple Airlines Logo
9:46 pm - 12:10 pm
PDX
-
BKK
24h 24m
2 stops
Multiple Airlines Logo
7:05 am - 2:46 pm
BKK
-
PDX
21h 41m
1 stop
$1,011Multiple Airlines
Tue, Sep 8 - Wed, Sep 23

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Qatar Airways flights from Portland to Bangkok

Our best Qatar Airways deals on Portland to Bangkok flight tickets
Qatar Airways
Aug 27
PDX5:07 amPortland
36h 28m
2 stops
BKK7:35 amBangkok Suvarnabhumi
Sep 9
BKK2:30 amBangkok Suvarnabhumi
28h 20m
2 stops
PDX4:50 pmPortland
$1,041
Qatar Airways
Sep 8
PDX7:09 amPortland
34h 26m
2 stops
BKK7:35 amBangkok Suvarnabhumi
Sep 22
BKK2:30 amBangkok Suvarnabhumi
28h 20m
2 stops
PDX4:50 pmPortland
$1,043
Qatar Airways
Sep 8
PDX1:59 pmPortland
26h 21m
2 stops
BKK6:20 amBangkok Suvarnabhumi
Sep 22
BKK8:00 pmBangkok Suvarnabhumi
40h 01m
2 stops
PDX10:01 pmPortland
$1,046

United Airlines flights from Portland to Bangkok

Our best United Airlines deals on Portland to Bangkok flight tickets
United Airlines
Jul 13
PDX7:00 amPortland
25h 15m
2 stops
BKK10:15 pmBangkok Suvarnabhumi
Jul 28
BKK7:00 amBangkok Suvarnabhumi
23h 47m
2 stops
PDX4:47 pmPortland
$1,151
United Airlines
Jul 13
PDX7:00 amPortland
25h 15m
2 stops
BKK10:15 pmBangkok Suvarnabhumi
Jul 28
BKK7:00 amBangkok Suvarnabhumi
23h 47m
2 stops
PDX4:47 pmPortland
$1,152
United Airlines
Jul 13
PDX11:16 amPortland
32h 19m
3 stops
BKK9:35 amBangkok Suvarnabhumi
Jul 28
BKK7:00 amBangkok Suvarnabhumi
23h 47m
2 stops
PDX4:47 pmPortland
$1,153

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 July 2, 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

Cheapest round-trip
Quickest round-trip

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Mon 11/16

7:35 pm-12:05 pm

2 stops25h 30m

Bangkok Suvarnabhumi

Tue 1/19

8:25 am-9:26 am

1 stop16h 01m

$949

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Mon 11/16

7:35 pm-12:05 pm

2 stops25h 30m

Bangkok Suvarnabhumi

Tue 1/19

9:40 am-2:41 pm

2 stops20h 01m

$955

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Thu 10/1

5:41 pm-12:10 pm

2 stops28h 29m

Bangkok Suvarnabhumi

Wed 10/14

2:35 am-2:51 pm

2 stops26h 16m

$956

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Thu 10/29

7:37 pm-12:05 pm

2 stops26h 28m

Bangkok Suvarnabhumi

Fri 11/13

8:25 am-2:41 pm

1 stop21h 16m

$976

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Thu 10/29

7:37 pm-12:05 pm

2 stops26h 28m

Bangkok Suvarnabhumi

Fri 11/13

8:25 am-2:41 pm

1 stop21h 16m

$977

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Thu 10/29

7:37 pm-12:05 pm

2 stops26h 28m

Bangkok Suvarnabhumi

Fri 11/13

9:40 am-6:31 pm

2 stops23h 51m

$982

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Thu 10/29

7:37 pm-12:05 pm

2 stops26h 28m

Bangkok Suvarnabhumi

Fri 11/13

9:40 am-6:31 pm

2 stops23h 51m

$984

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Mon 11/16

7:35 pm-12:05 pm

2 stops25h 30m

Bangkok Suvarnabhumi

Fri 1/15

8:00 pm-9:26 am

2 stops28h 26m

$988

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Tue 7/21

5:30 pm-8:55 am

2 stops25h 25m

Bangkok Suvarnabhumi

Tue 10/20

1:25 pm-8:28 am

2 stops33h 03m

$1,007

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Tue 9/8

9:46 pm-12:10 pm

2 stops24h 24m

Bangkok Suvarnabhumi

Wed 9/23

7:05 am-2:46 pm

1 stop21h 41m

$1,011

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

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 typical price of a round-trip flight between Portland and Bangkok?

What is the cheapest month to fly to Bangkok?

If you aren’t able to travel during the month of January, then book flights to Bangkok from Portland during April instead. Flights to Bangkok in April, while not as cheap as those in January, still average around $139.

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

You are more likely to see cheaper flights to Bangkok from Portland when booking week ahead of your departure date. In general, you can expect to find flights to Bangkok for around $1,093 when searching week 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 $968 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

23h 15m

Direct flights

None
The fastest flight from Portland to Bangkok takes 23h 15m
There are no direct flights from Portland to Bangkok. There are no popular flight routes from Portland to Bangkok.
Search flight deals

Frequently asked questions about flying from Portland to Bangkok

  • How far is Portland to Bangkok by plane?

    The distance between Portland and Bangkok is about 7529.0 mi. 23h 15m 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
7.8
8,454 reviews
Search Delta flights
Cathay PacificPriceFrom $653Free CancellationRating
7.6
1,402 reviews
Search Cathay Pacific flights
STARLUX AirlinesPriceFrom $754Free CancellationRating
8.9
352 reviews
Search STARLUX Airlines flights
Singapore AirlinesPriceFrom $759Free CancellationRating
8.2
1,557 reviews
Search Singapore Airlines flights
Japan AirlinesPriceFrom $776Free CancellationRating
8.3
1,858 reviews
Search Japan Airlines flights
China AirlinesPriceFrom $781Free CancellationRating
8.3
831 reviews
Search China Airlines flights
United AirlinesPriceFrom $822Free CancellationRating
7.4
9,927 reviews
Search United Airlines flights
Korean AirPriceFrom $845Free CancellationRating
8.4
1,220 reviews
Search Korean Air flights
ANAPriceFrom $890Free CancellationRating
8.3
1,260 reviews
Search ANA flights
EVA AirPriceFrom $896Free CancellationRating
8.5
1,484 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