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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.
Multiple Airlines Logo
7:05 am - 4:30 pm
PDX
-
BKK
43h 25m
2 stops
Multiple Airlines Logo
1:45 pm - 10:41 pm
BKK
-
PDX
22h 56m
2 stops
$875Multiple Airlines
Sun, Mar 8 - Sun, Mar 15
United Airlines Logo
5:30 am - 9:35 am
PDX
-
BKK
38h 05m
2 stops
United Airlines Logo
9:35 am - 8:54 pm
BKK
-
PDX
25h 19m
2 stops
$877United Airlines
Thu, May 14 - Wed, Jun 3
United Airlines Logo
7:15 am - 9:35 am
PDX
-
BKK
36h 20m
3 stops
United Airlines Logo
3:45 pm - 6:46 pm
BKK
-
PDX
41h 01m
3 stops
$878United Airlines
Wed, Apr 29 - Wed, May 6
Multiple Airlines Logo
7:05 am - 11:30 pm
PDX
-
BKK
26h 25m
2 stops
Multiple Airlines Logo
12:25 pm - 8:32 pm
BKK
-
PDX
22h 07m
2 stops
$879Multiple Airlines
Thu, Apr 9 - Mon, Apr 20
Multiple Airlines Logo
5:45 pm - 12:00 pm
PDX
-
BKK
28h 15m
2 stops
Multiple Airlines Logo
1:10 pm - 9:38 pm
BKK
-
PDX
22h 28m
2 stops
$880Multiple Airlines
Thu, Apr 9 - Tue, Apr 21
China Airlines Logo
2:45 pm - 12:10 pm
PDX
-
BKK
31h 25m
2 stops
China Airlines Logo
10:50 am - 9:32 am
BKK
-
PDX
36h 42m
2 stops
$881China Airlines
Wed, May 13 - Sun, Jun 7
STARLUX Airlines Logo
9:30 pm - 12:00 pm
PDX
-
BKK
24h 30m
2 stops
STARLUX Airlines Logo
5:50 pm - 9:38 pm
BKK
-
PDX
41h 48m
2 stops
$884STARLUX Airlines
Sat, Mar 28 - Mon, Apr 20
United Airlines Logo
7:30 am - 12:20 am
PDX
-
BKK
25h 50m
2 stops
United Airlines Logo
4:55 pm - 6:48 pm
BKK
-
PDX
39h 53m
2 stops
$885United Airlines
Tue, Mar 3 - Sun, Mar 15
United Airlines Logo
1:39 pm - 9:35 am
PDX
-
BKK
29h 56m
3 stops
United Airlines Logo
3:45 pm - 4:47 pm
BKK
-
PDX
39h 02m
2 stops
$886United Airlines
Tue, Apr 28 - Sun, May 31
China Airlines Logo
8:30 am - 1:05 pm
PDX
-
BKK
38h 35m
2 stops
China Airlines Logo
10:55 am - 9:35 am
BKK
-
PDX
36h 40m
2 stops
$887China Airlines
Sun, Mar 15 - Sun, Mar 22

United Airlines flights from Portland to Bangkok

Our best United Airlines deals on Portland to Bangkok flight tickets
United Airlines
May 14
PDX5:30 amPortland
38h 05m
2 stops
BKK9:35 amBangkok Suvarnabhumi
Jun 3
BKK9:35 amBangkok Suvarnabhumi
25h 19m
2 stops
PDX8:54 pmPortland
$877
United Airlines
Apr 29
PDX7:15 amPortland
36h 20m
3 stops
BKK9:35 amBangkok Suvarnabhumi
May 6
BKK3:45 pmBangkok Suvarnabhumi
41h 01m
3 stops
PDX6:46 pmPortland
$878
United Airlines
Mar 3
PDX7:30 amPortland
25h 50m
2 stops
BKK12:20 amBangkok Suvarnabhumi
Mar 17
BKK4:55 pmBangkok Suvarnabhumi
33h 38m
2 stops
PDX12:33 pmPortland
$885

STARLUX Airlines flights from Portland to Bangkok

Our best STARLUX Airlines deals on Portland to Bangkok flight tickets
STARLUX Airlines
Mar 28
PDX9:30 pmPortland
24h 30m
2 stops
BKK12:00 pmBangkok Suvarnabhumi
Apr 20
BKK5:50 pmBangkok Suvarnabhumi
41h 48m
2 stops
PDX9:38 pmPortland
$884
STARLUX Airlines
Mar 9
PDX9:19 pmPortland
25h 16m
2 stops
BKK12:35 pmBangkok Suvarnabhumi
Mar 12
BKK5:40 pmBangkok Suvarnabhumi
43h 01m
2 stops
PDX10:41 pmPortland
$889
STARLUX Airlines
Mar 2
PDX5:50 pmPortland
27h 45m
2 stops
BKK12:35 pmBangkok Suvarnabhumi
Apr 1
BKK5:50 pmBangkok Suvarnabhumi
41h 48m
2 stops
PDX9:38 pmPortland
$904

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 17, 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 3/8

7:05 am-4:30 pm

2 stops43h 25m

Bangkok Suvarnabhumi

Sun 3/15

1:45 pm-10:41 pm

2 stops22h 56m

$875

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Thu 5/14

5:30 am-9:35 am

2 stops38h 05m

Bangkok Suvarnabhumi

Wed 6/3

9:35 am-8:54 pm

2 stops25h 19m

$877

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Wed 4/29

7:15 am-9:35 am

3 stops36h 20m

Bangkok Suvarnabhumi

Wed 5/6

3:45 pm-6:46 pm

3 stops41h 01m

$878

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Thu 4/9

7:05 am-11:30 pm

2 stops26h 25m

Bangkok Suvarnabhumi

Mon 4/20

12:25 pm-8:32 pm

2 stops22h 07m

$879

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Thu 4/9

5:45 pm-12:00 pm

2 stops28h 15m

Bangkok Suvarnabhumi

Tue 4/21

1:10 pm-9:38 pm

2 stops22h 28m

$880

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Wed 5/13

2:45 pm-12:10 pm

2 stops31h 25m

Bangkok Suvarnabhumi

Sun 6/7

10:50 am-9:32 am

2 stops36h 42m

$881

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Sat 3/28

9:30 pm-12:00 pm

2 stops24h 30m

Bangkok Suvarnabhumi

Mon 4/20

5:50 pm-9:38 pm

2 stops41h 48m

$884

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Tue 3/3

7:30 am-12:20 am

2 stops25h 50m

Bangkok Suvarnabhumi

Sun 3/15

4:55 pm-6:48 pm

2 stops39h 53m

$885

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Tue 4/28

1:39 pm-9:35 am

3 stops29h 56m

Bangkok Suvarnabhumi

Sun 5/31

3:45 pm-4:47 pm

2 stops39h 02m

$886

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Sun 3/15

8:30 am-1:05 pm

2 stops38h 35m

Bangkok Suvarnabhumi

Sun 3/22

10:55 am-9:35 am

2 stops36h 40m

$887

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 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
8,207 reviews
Search Delta flights
STARLUX AirlinesPriceFrom $757Free CancellationRating
8.9
274 reviews
Search STARLUX Airlines flights
Singapore AirlinesPriceFrom $759Free CancellationRating
8.2
1,457 reviews
Search Singapore Airlines flights
Japan AirlinesPriceFrom $776Free CancellationRating
8.3
1,706 reviews
Search Japan Airlines flights
China AirlinesPriceFrom $781Free CancellationRating
8.3
804 reviews
Search China Airlines flights
ANAPriceFrom $785Free CancellationRating
8.4
1,093 reviews
Search ANA flights
Korean AirPriceFrom $795Free CancellationRating
8.4
1,194 reviews
Search Korean Air flights
United AirlinesPriceFrom $821Free CancellationRating
7.4
9,314 reviews
Search United Airlines flights
Qatar AirwaysPriceFrom $864Free CancellationRating
7.4
3,738 reviews
Search Qatar Airways flights
EVA AirPriceFrom $896Free CancellationRating
8.4
1,355 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