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Cheap flights from Portland to Bangkok from $457

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 8/29. 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.
ANA Logo
9:00 am - 11:55 pm
PDX
-
BKK
24h 55m
2 stops
ANA Logo
7:00 am - 2:46 pm
BKK
-
PDX
21h 46m
2 stops
$941ANA
Tue, Sep 8 - Tue, Sep 15
Multiple Airlines Logo
7:03 am - 9:55 pm
PDX
-
BKK
24h 52m
2 stops
Multiple Airlines Logo
5:05 am - 4:36 pm
BKK
-
PDX
25h 31m
2 stops
$955Multiple Airlines
Thu, Sep 3 - Thu, Sep 17
Multiple Airlines Logo
7:03 am - 9:55 pm
PDX
-
BKK
24h 52m
2 stops
Multiple Airlines Logo
5:05 am - 4:36 pm
BKK
-
PDX
25h 31m
2 stops
$955Multiple Airlines
Thu, Aug 20 - Thu, Aug 27
STARLUX Airlines Logo
2:30 pm - 12:00 pm
PDX
-
BKK
31h 30m
2 stops
STARLUX Airlines Logo
5:50 pm - 10:44 am
BKK
-
PDX
30h 54m
2 stops
$979STARLUX Airlines
Thu, Oct 8 - Sun, Oct 18
STARLUX Airlines Logo
3:33 pm - 12:00 pm
PDX
-
BKK
30h 27m
2 stops
STARLUX Airlines Logo
5:50 pm - 9:25 am
BKK
-
PDX
29h 35m
2 stops
$979STARLUX Airlines
Sat, Sep 19 - Sat, Sep 26
ANA Logo
7:30 am - 5:10 am
PDX
-
BKK
30h 40m
2 stops
ANA Logo
7:10 am - 6:31 pm
BKK
-
PDX
26h 21m
2 stops
$991ANA
Wed, Jan 13 - Wed, Jan 20
United Airlines Logo
5:35 am - 5:10 am
PDX
-
BKK
32h 35m
2 stops
United Airlines Logo
9:10 am - 12:54 am
BKK
-
PDX
30h 44m
2 stops
$1,006United Airlines
Mon, Jan 11 - Tue, Jan 19
United Airlines Logo
5:30 am - 4:35 am
PDX
-
BKK
33h 05m
2 stops
United Airlines Logo
9:35 am - 10:45 pm
BKK
-
PDX
51h 10m
2 stops
$1,006United Airlines
Tue, Sep 8 - Tue, Sep 15
Air Canada Logo
7:45 pm - 9:45 pm
PDX
-
BKK
36h 00m
2 stops
Air Canada Logo
8:25 am - 2:41 pm
BKK
-
PDX
21h 16m
1 stop
$1,008Air Canada
Thu, Sep 17 - Sat, Dec 12
Air Canada Logo
7:45 pm - 5:05 am
PDX
-
BKK
19h 20m
1 stop
Air Canada Logo
8:25 am - 9:26 am
BKK
-
PDX
16h 01m
1 stop
$1,027Air Canada
Wed, Oct 7 - Tue, Nov 17

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ANA flights from Portland to Bangkok

Our best ANA deals on Portland to Bangkok flight tickets
ANA
Sep 8
PDX9:00 amPortland
24h 55m
2 stops
BKK11:55 pmBangkok Suvarnabhumi
Sep 15
BKK7:00 amBangkok Suvarnabhumi
21h 46m
2 stops
PDX2:46 pmPortland
$941
ANA
Jan 13
PDX7:30 amPortland
30h 40m
2 stops
BKK5:10 amBangkok Suvarnabhumi
Jan 20
BKK7:10 amBangkok Suvarnabhumi
26h 21m
2 stops
PDX6:31 pmPortland
$991
ANA
Jan 5
PDX7:30 amPortland
25h 50m
2 stops
BKK12:20 amBangkok Suvarnabhumi
Jan 20
BKK7:10 amBangkok Suvarnabhumi
26h 21m
2 stops
PDX6:31 pmPortland
$1,022

United Airlines flights from Portland to Bangkok

Our best United Airlines deals on Portland to Bangkok flight tickets
United Airlines
Aug 27
PDX7:00 amPortland
31h 35m
2 stops
BKK4:35 amBangkok Suvarnabhumi
Sep 10
BKK9:35 amBangkok Suvarnabhumi
27h 10m
2 stops
PDX10:45 pmPortland
$1,006
United Airlines
Sep 1
PDX7:15 pmPortland
43h 20m
2 stops
BKK4:35 amBangkok Suvarnabhumi
Sep 29
BKK7:00 amBangkok Suvarnabhumi
25h 31m
3 stops
PDX6:31 pmPortland
$1,008
United Airlines
Sep 7
PDX7:00 amPortland
25h 15m
2 stops
BKK10:15 pmBangkok Suvarnabhumi
Sep 21
BKK9:35 amBangkok Suvarnabhumi
29h 02m
2 stops
PDX12:37 amPortland
$1,009

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 28, 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

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Tue 9/8

9:00 am-11:55 pm

2 stops24h 55m

Bangkok Suvarnabhumi

Tue 9/15

7:00 am-2:46 pm

2 stops21h 46m

$941

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Thu 9/3

7:03 am-9:55 pm

2 stops24h 52m

Bangkok Suvarnabhumi

Thu 9/17

5:05 am-4:36 pm

2 stops25h 31m

$955

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Thu 8/20

7:03 am-9:55 pm

2 stops24h 52m

Bangkok Suvarnabhumi

Thu 8/27

5:05 am-4:36 pm

2 stops25h 31m

$955

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Thu 10/8

2:30 pm-12:00 pm

2 stops31h 30m

Bangkok Suvarnabhumi

Sun 10/18

5:50 pm-10:44 am

2 stops30h 54m

$979

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Sat 9/19

3:33 pm-12:00 pm

2 stops30h 27m

Bangkok Suvarnabhumi

Sat 9/26

5:50 pm-9:25 am

2 stops29h 35m

$979

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Wed 1/13

7:30 am-5:10 am

2 stops30h 40m

Bangkok Suvarnabhumi

Wed 1/20

7:10 am-6:31 pm

2 stops26h 21m

$991

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Mon 1/11

5:35 am-5:10 am

2 stops32h 35m

Bangkok Suvarnabhumi

Tue 1/19

9:10 am-12:54 am

2 stops30h 44m

$1,006

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Tue 9/8

5:30 am-4:35 am

2 stops33h 05m

Bangkok Suvarnabhumi

Tue 9/15

9:35 am-10:45 pm

2 stops51h 10m

$1,006

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Thu 9/17

7:45 pm-9:45 pm

2 stops36h 00m

Bangkok Suvarnabhumi

Sat 12/12

8:25 am-2:41 pm

1 stop21h 16m

$1,008
Quickest round-trip

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Wed 10/7

7:45 pm-5:05 am

1 stop19h 20m

Bangkok Suvarnabhumi

Tue 11/17

8:25 am-9:26 am

1 stop16h 01m

$1,027

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?

Prices are currently typical for flights on this route.

Typical prices usually range from $852 to $1,153.
The lowest price recently found on this route was $941.

What is the cheapest month to fly to Bangkok?

If you aren’t able to travel during the month of April, then book flights to Bangkok from Portland during January instead. Flights to Bangkok in January, while not as cheap as those in April, still average around $966.

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 weeks ahead of your departure date. In general, you can expect to find flights to Bangkok for around $1,129 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 $977 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

25h 45m

Direct flights

None
The fastest flight from Portland to Bangkok takes 25h 45m
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. 25h 45m 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 $99Free CancellationRating
7.8
8,483 reviews
Search Delta flights
Cathay PacificPriceFrom $653Free CancellationRating
7.6
1,433 reviews
Search Cathay Pacific flights
STARLUX AirlinesPriceFrom $754Free CancellationRating
8.8
362 reviews
Search STARLUX Airlines flights
Singapore AirlinesPriceFrom $759Free CancellationRating
8.2
1,584 reviews
Search Singapore Airlines flights
China AirlinesPriceFrom $773Free CancellationRating
8.3
838 reviews
Search China Airlines flights
Japan AirlinesPriceFrom $776Free CancellationRating
8.3
1,881 reviews
Search Japan Airlines flights
United AirlinesPriceFrom $822Free CancellationRating
7.4
10,048 reviews
Search United Airlines flights
Korean AirPriceFrom $845Free CancellationRating
8.4
1,221 reviews
Search Korean Air flights
ANAPriceFrom $890Free CancellationRating
8.3
1,284 reviews
Search ANA flights
EVA AirPriceFrom $896Free CancellationRating
8.5
1,506 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