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Cheap flights from Portland to Bangkok from $338

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.
1 adult
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.
Multiple Airlines Logo
1:52 pm - 12:00 pm
PDX
-
BKK
32h 08m
2 stops
Multiple Airlines Logo
1:10 pm - 7:34 pm
BKK
-
PDX
20h 24m
2 stops
$843Multiple Airlines
Sun, Apr 26 - Thu, Apr 30
STARLUX Airlines Logo
5:30 pm - 4:40 pm
PDX
-
BKK
33h 10m
2 stops
STARLUX Airlines Logo
1:10 pm - 9:28 pm
BKK
-
PDX
22h 18m
2 stops
$844STARLUX Airlines
Wed, May 6 - Wed, May 20
Multiple Airlines Logo
5:45 pm - 12:00 pm
PDX
-
BKK
28h 15m
2 stops
Multiple Airlines Logo
5:50 pm - 9:38 am
BKK
-
PDX
29h 48m
2 stops
$847Multiple Airlines
Mon, Apr 6 - Wed, Apr 22
STARLUX Airlines Logo
8:27 pm - 12:00 pm
PDX
-
BKK
25h 33m
2 stops
STARLUX Airlines Logo
1:10 pm - 7:34 pm
BKK
-
PDX
20h 24m
2 stops
$849STARLUX Airlines
Tue, Apr 21 - Sun, May 3
Multiple Airlines Logo
5:45 pm - 12:00 pm
PDX
-
BKK
28h 15m
2 stops
Multiple Airlines Logo
5:50 pm - 9:38 am
BKK
-
PDX
29h 48m
2 stops
$850Multiple Airlines
Mon, Apr 6 - Thu, May 7
STARLUX Airlines Logo
5:49 pm - 12:00 pm
PDX
-
BKK
28h 11m
2 stops
STARLUX Airlines Logo
1:10 pm - 9:38 am
BKK
-
PDX
34h 28m
2 stops
$852STARLUX Airlines
Mon, Apr 6 - Thu, May 7
Multiple Airlines Logo
2:42 pm - 4:40 pm
PDX
-
BKK
35h 58m
2 stops
Multiple Airlines Logo
1:10 pm - 10:53 pm
BKK
-
PDX
23h 43m
2 stops
$855Multiple Airlines
Fri, Apr 17 - Sun, Apr 26
STARLUX Airlines Logo
7:27 pm - 4:40 pm
PDX
-
BKK
31h 13m
2 stops
STARLUX Airlines Logo
1:10 pm - 7:34 pm
BKK
-
PDX
20h 24m
2 stops
$856STARLUX Airlines
Mon, Mar 30 - Thu, Apr 30
Multiple Airlines Logo
2:42 pm - 12:00 pm
PDX
-
BKK
31h 18m
2 stops
Multiple Airlines Logo
1:10 pm - 9:38 am
BKK
-
PDX
34h 28m
2 stops
$857Multiple Airlines
Sun, Mar 29 - Thu, Apr 30
STARLUX Airlines Logo
7:27 pm - 4:40 pm
PDX
-
BKK
31h 13m
2 stops
STARLUX Airlines Logo
5:50 pm - 9:38 am
BKK
-
PDX
29h 48m
2 stops
$861STARLUX Airlines
Mon, Mar 30 - Thu, Apr 30

United Airlines flights from Portland to Bangkok

Our best United Airlines deals on Portland to Bangkok flight tickets
United Airlines
Apr 23
PDX7:15 amPortland
26h 40m
2 stops
BKK11:55 pmBangkok Suvarnabhumi
May 3
BKK9:35 amBangkok Suvarnabhumi
43h 28m
2 stops
PDX3:03 pmPortland
$865
United Airlines
May 6
PDX7:15 amPortland
36h 20m
3 stops
BKK9:35 amBangkok Suvarnabhumi
May 18
BKK9:35 amBangkok Suvarnabhumi
44h 58m
2 stops
PDX4:33 pmPortland
$866
United Airlines
May 6
PDX7:15 amPortland
36h 20m
3 stops
BKK9:35 amBangkok Suvarnabhumi
May 19
BKK9:35 amBangkok Suvarnabhumi
44h 58m
2 stops
PDX4:33 pmPortland
$867

STARLUX Airlines flights from Portland to Bangkok

Our best STARLUX Airlines deals on Portland to Bangkok flight tickets
STARLUX Airlines
Mar 4
PDX2:47 pmPortland
34h 43m
2 stops
BKK4:30 pmBangkok Suvarnabhumi
Mar 16
BKK5:40 pmBangkok Suvarnabhumi
30h 02m
2 stops
PDX9:42 amPortland
$842
STARLUX Airlines
May 6
PDX5:30 pmPortland
33h 10m
2 stops
BKK4:40 pmBangkok Suvarnabhumi
May 20
BKK1:10 pmBangkok Suvarnabhumi
22h 18m
2 stops
PDX9:28 pmPortland
$844
STARLUX Airlines
Mar 1
PDX9:48 pmPortland
51h 42m
2 stops
BKK4:30 pmBangkok Suvarnabhumi
Mar 12
BKK5:40 pmBangkok Suvarnabhumi
30h 02m
2 stops
PDX9:42 amPortland
$848

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 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

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Sun 4/26

1:52 pm-12:00 pm

2 stops32h 08m

Bangkok Suvarnabhumi

Thu 4/30

1:10 pm-7:34 pm

2 stops20h 24m

$843

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Wed 5/6

5:30 pm-4:40 pm

2 stops33h 10m

Bangkok Suvarnabhumi

Wed 5/20

1:10 pm-9:28 pm

2 stops22h 18m

$844

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Mon 4/6

5:45 pm-12:00 pm

2 stops28h 15m

Bangkok Suvarnabhumi

Wed 4/22

5:50 pm-9:38 am

2 stops29h 48m

$847

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Tue 4/21

8:27 pm-12:00 pm

2 stops25h 33m

Bangkok Suvarnabhumi

Sun 5/3

1:10 pm-7:34 pm

2 stops20h 24m

$849

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Mon 4/6

5:45 pm-12:00 pm

2 stops28h 15m

Bangkok Suvarnabhumi

Thu 5/7

5:50 pm-9:38 am

2 stops29h 48m

$850

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Mon 4/6

5:49 pm-12:00 pm

2 stops28h 11m

Bangkok Suvarnabhumi

Thu 5/7

1:10 pm-9:38 am

2 stops34h 28m

$852

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Fri 4/17

2:42 pm-4:40 pm

2 stops35h 58m

Bangkok Suvarnabhumi

Sun 4/26

1:10 pm-10:53 pm

2 stops23h 43m

$855

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Mon 3/30

7:27 pm-4:40 pm

2 stops31h 13m

Bangkok Suvarnabhumi

Thu 4/30

1:10 pm-7:34 pm

2 stops20h 24m

$856

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Sun 3/29

2:42 pm-12:00 pm

2 stops31h 18m

Bangkok Suvarnabhumi

Thu 4/30

1:10 pm-9:38 am

2 stops34h 28m

$857

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Mon 3/30

7:27 pm-4:40 pm

2 stops31h 13m

Bangkok Suvarnabhumi

Thu 4/30

5:50 pm-9:38 am

2 stops29h 48m

$861

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
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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 September, then book flights to Bangkok from Portland during August instead. Flights to Bangkok in August, while not as cheap as those in September, still average around $945.

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 $1,071 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

21h 15m

Direct flights

None
The fastest flight from Portland to Bangkok takes 21h 15m
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. 21h 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
7.9
8,241 reviews
Search Delta flights
Cathay PacificPriceFrom $653Free CancellationRating
7.6
1,180 reviews
Search Cathay Pacific flights
STARLUX AirlinesPriceFrom $757Free CancellationRating
8.9
275 reviews
Search STARLUX Airlines flights
Singapore AirlinesPriceFrom $759Free CancellationRating
8.2
1,465 reviews
Search Singapore Airlines flights
Japan AirlinesPriceFrom $776Free CancellationRating
8.3
1,716 reviews
Search Japan Airlines flights
China AirlinesPriceFrom $781Free CancellationRating
8.3
808 reviews
Search China Airlines flights
ANAPriceFrom $785Free CancellationRating
8.4
1,103 reviews
Search ANA flights
Korean AirPriceFrom $795Free CancellationRating
8.4
1,195 reviews
Search Korean Air flights
United AirlinesPriceFrom $821Free CancellationRating
7.4
9,358 reviews
Search United Airlines flights
EVA AirPriceFrom $896Free CancellationRating
8.4
1,359 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