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Cheap flights from Portland to Bangkok from $392

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 1/19. 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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Cheap round-trip flights

Enter your travel dates to find the best prices.
China Airlines Logo
5:41 pm - 9:50 amPDX-BKK
25h 09m2 stops
China Airlines Logo
10:55 am - 9:36 amBKK-PDX
37h 41m2 stops
$781China Airlines
Find Deal
Thu, Dec 4 - Tue, Dec 16
Multiple Airlines Logo
5:39 pm - 9:50 amPDX-BKK
25h 11m2 stops
Multiple Airlines Logo
5:30 pm - 9:32 amBKK-PDX
30h 02m2 stops
$792Multiple Airlines
Find Deal
Mon, Mar 2 - Mon, Apr 27
China Airlines Logo
5:35 pm - 1:05 pmPDX-BKK
28h 30m2 stops
China Airlines Logo
2:35 am - 9:35 amBKK-PDX
46h 00m2 stops
$794China Airlines
Find Deal
Mon, Jan 12 - Fri, Jan 30
Singapore Airlines Logo
7:57 pm - 8:00 pmPDX-BKK
34h 03m2 stops
Singapore Airlines Logo
3:50 pm - 9:35 amBKK-PDX
31h 45m2 stops
$796Singapore Airlines
Find Deal
Mon, Mar 9 - Fri, Mar 13
Multiple Airlines Logo
5:40 pm - 9:50 amPDX-BKK
25h 10m2 stops
Multiple Airlines Logo
5:50 pm - 9:35 amBKK-PDX
29h 45m2 stops
$799Multiple Airlines
Find Deal
Tue, Mar 3 - Tue, Mar 17
China Airlines Logo
1:38 pm - 1:05 pmPDX-BKK
32h 27m2 stops
China Airlines Logo
2:05 pm - 11:46 pmBKK-PDX
24h 41m2 stops
$801China Airlines
Find Deal
Tue, Feb 10 - Thu, Feb 26
Singapore Airlines Logo
9:19 pm - 8:00 pmPDX-BKK
31h 41m2 stops
Singapore Airlines Logo
9:10 pm - 4:41 pmBKK-PDX
34h 31m3 stops
$803Singapore Airlines
Find Deal
Wed, Feb 18 - Sun, Mar 1
China Airlines Logo
9:30 pm - 1:05 pmPDX-BKK
48h 35m2 stops
China Airlines Logo
10:55 am - 9:35 amBKK-PDX
37h 40m2 stops
$805China Airlines
Find Deal
Fri, Jan 9 - Wed, Jan 28
China Airlines Logo
5:35 pm - 9:50 amPDX-BKK
25h 15m2 stops
China Airlines Logo
10:55 am - 11:32 pmBKK-PDX
27h 37m2 stops
$806China Airlines
Find Deal
Sun, Jan 18 - Thu, Feb 5
Multiple Airlines Logo
5:40 pm - 9:50 amPDX-BKK
25h 10m2 stops
Multiple Airlines Logo
5:50 pm - 9:35 amBKK-PDX
30h 45m2 stops
$807Multiple Airlines
Find Deal
Mon, Feb 16 - Mon, Mar 2

China Airlines flights from Portland to Bangkok

Our best China Airlines deals on Portland to Bangkok flight tickets
China Airlines
Dec 4
PDX5:41 pmPortland
25h 09m
2 stops
BKK9:50 amBangkok Suvarnabhumi
Dec 16
BKK10:55 amBangkok Suvarnabhumi
37h 41m
2 stops
PDX9:36 amPortland
$781
Find similar
China Airlines
Jan 12
PDX5:35 pmPortland
28h 30m
2 stops
BKK1:05 pmBangkok Suvarnabhumi
Jan 30
BKK2:35 amBangkok Suvarnabhumi
46h 00m
2 stops
PDX9:35 amPortland
$794
Find similar
China Airlines
Feb 10
PDX1:38 pmPortland
32h 27m
2 stops
BKK1:05 pmBangkok Suvarnabhumi
Feb 26
BKK2:05 pmBangkok Suvarnabhumi
24h 41m
2 stops
PDX11:46 pmPortland
$801
Find similar

Singapore Airlines flights from Portland to Bangkok

Our best Singapore Airlines deals on Portland to Bangkok flight tickets
Singapore Airlines
Mar 9
PDX7:57 pmPortland
34h 03m
2 stops
BKK8:00 pmBangkok Suvarnabhumi
Mar 13
BKK3:50 pmBangkok Suvarnabhumi
31h 45m
2 stops
PDX9:35 amPortland
$796
Find similar
Singapore Airlines
Feb 18
PDX9:19 pmPortland
31h 41m
2 stops
BKK8:00 pmBangkok Suvarnabhumi
Mar 1
BKK9:10 pmBangkok Suvarnabhumi
34h 31m
3 stops
PDX4:41 pmPortland
$803
Find similar
Singapore Airlines
Feb 18
PDX9:19 pmPortland
31h 41m
2 stops
BKK8:00 pmBangkok Suvarnabhumi
Mar 1
BKK9:35 amBangkok Suvarnabhumi
29h 07m
2 stops
PDX11:42 pmPortland
$811
Find similar

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 November 13, 2025.
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

Thu 12/4

5:41 pm-9:50 am

2 stops25h 09m

Bangkok Suvarnabhumi

Tue 12/16

10:55 am-9:36 am

2 stops37h 41m

$781

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Mon 3/2

5:39 pm-9:50 am

2 stops25h 11m

Bangkok Suvarnabhumi

Mon 4/27

5:30 pm-9:32 am

2 stops30h 02m

$792

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Mon 1/12

5:35 pm-1:05 pm

2 stops28h 30m

Bangkok Suvarnabhumi

Fri 1/30

2:35 am-9:35 am

2 stops46h 00m

$794

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Mon 3/9

7:57 pm-8:00 pm

2 stops34h 03m

Bangkok Suvarnabhumi

Fri 3/13

3:50 pm-9:35 am

2 stops31h 45m

$796

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Tue 3/3

5:40 pm-9:50 am

2 stops25h 10m

Bangkok Suvarnabhumi

Tue 3/17

5:50 pm-9:35 am

2 stops29h 45m

$799

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Tue 2/10

1:38 pm-1:05 pm

2 stops32h 27m

Bangkok Suvarnabhumi

Thu 2/26

2:05 pm-11:46 pm

2 stops24h 41m

$801

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Wed 2/18

9:19 pm-8:00 pm

2 stops31h 41m

Bangkok Suvarnabhumi

Sun 3/1

9:10 pm-4:41 pm

3 stops34h 31m

$803

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Fri 1/9

9:30 pm-1:05 pm

2 stops48h 35m

Bangkok Suvarnabhumi

Wed 1/28

10:55 am-9:35 am

2 stops37h 40m

$805

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Sun 1/18

5:35 pm-9:50 am

2 stops25h 15m

Bangkok Suvarnabhumi

Thu 2/5

10:55 am-11:32 pm

2 stops27h 37m

$806

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Mon 2/16

5:40 pm-9:50 am

2 stops25h 10m

Bangkok Suvarnabhumi

Mon 3/2

5:50 pm-9:35 am

2 stops30h 45m

$807

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 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 October instead. Flights to Bangkok in October, while not as cheap as those in September, still average around $956.

What is the cheapest day to depart on your flight to Bangkok?

On average, the least expensive day to fly to Bangkok from Portland is on a Monday. momondo users have found tickets for Monday departures for as low as $1,127. However, this price may fluctuate depending on the airline, the season, and holidays. Flights from Portland to Bangkok on a Friday will generally be more expensive and average around $1,440. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

What is the cheapest time of day to depart on your flight to Bangkok?

According to our data, the cheapest time of day to fly to Bangkok is in the evening. momondo users have found flights departing from Portland to Bangkok in the evening for as low as $1,137. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Try not to purchase tickets at noon because they tend to be around $1,989. Of course, these prices can vary depending on the time of year and what airport you fly to.

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 $1,093 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 $925 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

Direct flights

None
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 $227Free CancellationRating
7.9
8,007 reviews
Search Delta flights
Japan AirlinesPriceFrom $776Free CancellationRating
8.3
1,610 reviews
Search Japan Airlines flights
STARLUX AirlinesPriceFrom $777Free CancellationRating
8.9
227 reviews
Search STARLUX Airlines flights
ANAPriceFrom $793Free CancellationRating
8.4
1,003 reviews
Search ANA flights
Korean AirPriceFrom $795Free CancellationRating
8.4
1,163 reviews
Search Korean Air flights
United AirlinesPriceFrom $817Free CancellationRating
7.4
9,015 reviews
Search United Airlines flights
Singapore AirlinesPriceFrom $820Free CancellationRating
8.1
1,400 reviews
Search Singapore Airlines flights
China AirlinesPriceFrom $835Free CancellationRating
8.3
778 reviews
Search China Airlines flights
Qatar AirwaysPriceFrom $864Free CancellationRating
7.4
3,661 reviews
Search Qatar Airways flights
Air CanadaPriceFrom $928Free CancellationRating
7.1
10,444 reviews
Search Air Canada 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