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Cheap flights from Portland to Bangkok from $448

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 11/15. 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
7:00 am - 4:35 am
PDX
-
BKK
31h 35m
2 stops
ANA Logo
9:35 am - 2:27 pm
BKK
-
PDX
42h 52m
2 stops
$995ANA
Wed, Sep 2 - Wed, Sep 30
STARLUX Airlines Logo
5:38 pm - 12:00 pm
PDX
-
BKK
28h 22m
2 stops
STARLUX Airlines Logo
5:50 pm - 9:25 am
BKK
-
PDX
29h 35m
2 stops
$997STARLUX Airlines
Thu, Aug 27 - Thu, Sep 10
ANA Logo
9:00 am - 11:55 pm
PDX
-
BKK
24h 55m
2 stops
ANA Logo
9:35 pm - 2:47 pm
BKK
-
PDX
31h 12m
2 stops
$998ANA
Tue, Aug 25 - Tue, Sep 1
United Airlines Logo
7:15 pm - 4:35 am
PDX
-
BKK
43h 20m
2 stops
United Airlines Logo
9:35 am - 10:57 pm
BKK
-
PDX
27h 22m
2 stops
$999United Airlines
Tue, Sep 1 - Tue, Sep 29
Multiple Airlines Logo
6:00 pm - 12:35 pm
PDX
-
BKK
28h 35m
2 stops
Multiple Airlines Logo
1:45 pm - 9:31 am
BKK
-
PDX
34h 46m
2 stops
$1,000Multiple Airlines
Thu, Oct 29 - Mon, Nov 9
Multiple Airlines Logo
5:00 pm - 4:30 pm
PDX
-
BKK
32h 30m
2 stops
Multiple Airlines Logo
1:45 pm - 9:25 am
BKK
-
PDX
34h 40m
2 stops
$1,001Multiple Airlines
Thu, Nov 12 - Thu, Dec 10
United Airlines Logo
3:43 pm - 11:55 pm
PDX
-
BKK
42h 12m
3 stops
United Airlines Logo
9:35 am - 9:00 pm
BKK
-
PDX
25h 25m
2 stops
$1,002United Airlines
Wed, Sep 2 - Wed, Sep 30
United Airlines Logo
9:00 am - 9:35 am
PDX
-
BKK
34h 35m
3 stops
United Airlines Logo
9:35 am - 9:00 pm
BKK
-
PDX
25h 25m
2 stops
$1,003United Airlines
Tue, Sep 1 - Tue, Sep 29
United Airlines Logo
7:00 am - 11:55 pm
PDX
-
BKK
26h 55m
2 stops
United Airlines Logo
7:00 am - 2:27 pm
BKK
-
PDX
21h 27m
2 stops
$1,004United Airlines
Sun, Sep 6 - Mon, Sep 28
United Airlines Logo
1:03 pm - 9:35 am
PDX
-
BKK
30h 32m
3 stops
United Airlines Logo
7:00 am - 2:36 pm
BKK
-
PDX
21h 36m
2 stops
$1,005United Airlines
Thu, Aug 27 - Thu, Sep 10

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ANA flights from Portland to Bangkok

Our best ANA deals on Portland to Bangkok flight tickets
ANA
Sep 2
PDX7:00 amPortland
31h 35m
2 stops
BKK4:35 amBangkok Suvarnabhumi
Sep 30
BKK9:35 amBangkok Suvarnabhumi
42h 52m
2 stops
PDX2:27 pmPortland
$995
ANA
Aug 25
PDX9:00 amPortland
24h 55m
2 stops
BKK11:55 pmBangkok Suvarnabhumi
Sep 1
BKK9:35 pmBangkok Suvarnabhumi
31h 12m
2 stops
PDX2:47 pmPortland
$998
ANA
Sep 8
PDX7:00 amPortland
32h 55m
2 stops
BKK5:55 amBangkok Suvarnabhumi
Sep 26
BKK7:00 amBangkok Suvarnabhumi
25h 31m
2 stops
PDX6:31 pmPortland
$1,037

United Airlines flights from Portland to Bangkok

Our best United Airlines deals on Portland to Bangkok flight tickets
United Airlines
Sep 1
PDX7:15 pmPortland
43h 20m
2 stops
BKK4:35 amBangkok Suvarnabhumi
Sep 29
BKK9:35 amBangkok Suvarnabhumi
27h 22m
2 stops
PDX10:57 pmPortland
$999
United Airlines
Sep 2
PDX3:43 pmPortland
42h 12m
3 stops
BKK11:55 pmBangkok Suvarnabhumi
Sep 30
BKK9:35 amBangkok Suvarnabhumi
25h 25m
2 stops
PDX9:00 pmPortland
$1,002
United Airlines
Sep 1
PDX9:00 amPortland
34h 35m
3 stops
BKK9:35 amBangkok Suvarnabhumi
Sep 29
BKK9:35 amBangkok Suvarnabhumi
25h 25m
2 stops
PDX9:00 pmPortland
$1,003

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 June 20, 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

Wed 9/2

7:00 am-4:35 am

2 stops31h 35m

Bangkok Suvarnabhumi

Wed 9/30

9:35 am-2:27 pm

2 stops42h 52m

$995

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Thu 8/27

5:38 pm-12:00 pm

2 stops28h 22m

Bangkok Suvarnabhumi

Thu 9/10

5:50 pm-9:25 am

2 stops29h 35m

$997

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Tue 8/25

9:00 am-11:55 pm

2 stops24h 55m

Bangkok Suvarnabhumi

Tue 9/1

9:35 pm-2:47 pm

2 stops31h 12m

$998

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Tue 9/1

7:15 pm-4:35 am

2 stops43h 20m

Bangkok Suvarnabhumi

Tue 9/29

9:35 am-10:57 pm

2 stops27h 22m

$999

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Thu 10/29

6:00 pm-12:35 pm

2 stops28h 35m

Bangkok Suvarnabhumi

Mon 11/9

1:45 pm-9:31 am

2 stops34h 46m

$1,000

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Thu 11/12

5:00 pm-4:30 pm

2 stops32h 30m

Bangkok Suvarnabhumi

Thu 12/10

1:45 pm-9:25 am

2 stops34h 40m

$1,001

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Wed 9/2

3:43 pm-11:55 pm

3 stops42h 12m

Bangkok Suvarnabhumi

Wed 9/30

9:35 am-9:00 pm

2 stops25h 25m

$1,002

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Tue 9/1

9:00 am-9:35 am

3 stops34h 35m

Bangkok Suvarnabhumi

Tue 9/29

9:35 am-9:00 pm

2 stops25h 25m

$1,003
Quickest round-trip

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Sun 9/6

7:00 am-11:55 pm

2 stops26h 55m

Bangkok Suvarnabhumi

Mon 9/28

7:00 am-2:27 pm

2 stops21h 27m

$1,004

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Thu 8/27

1:03 pm-9:35 am

3 stops30h 32m

Bangkok Suvarnabhumi

Thu 9/10

7:00 am-2:36 pm

2 stops21h 36m

$1,005

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 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 $1,084 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

24h 05m

Direct flights

None
The fastest flight from Portland to Bangkok takes 24h 05m
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. 24h 05m 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
8,419 reviews
Search Delta flights
Cathay PacificPriceFrom $653Free CancellationRating
7.6
1,384 reviews
Search Cathay Pacific flights
STARLUX AirlinesPriceFrom $754Free CancellationRating
8.9
341 reviews
Search STARLUX Airlines flights
Singapore AirlinesPriceFrom $759Free CancellationRating
8.2
1,546 reviews
Search Singapore Airlines flights
Japan AirlinesPriceFrom $776Free CancellationRating
8.3
1,841 reviews
Search Japan Airlines flights
China AirlinesPriceFrom $781Free CancellationRating
8.3
829 reviews
Search China Airlines flights
United AirlinesPriceFrom $822Free CancellationRating
7.4
9,867 reviews
Search United Airlines flights
ANAPriceFrom $836Free CancellationRating
8.3
1,247 reviews
Search ANA flights
Korean AirPriceFrom $845Free CancellationRating
8.4
1,218 reviews
Search Korean Air flights
EVA AirPriceFrom $896Free CancellationRating
8.5
1,478 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