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Cheap flights from Portland to Bangkok from $424

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 8/26. 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.
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 - 1:50 pm
BKK
-
PDX
23h 45m
2 stops
$961Multiple Airlines
Thu, Sep 17 - Sat, Dec 12
Multiple Airlines Logo
5:55 pm - 12:00 pm
PDX
-
BKK
28h 05m
2 stops
Multiple Airlines Logo
5:50 pm - 10:50 am
BKK
-
PDX
31h 00m
2 stops
$970Multiple Airlines
Tue, Sep 1 - Tue, Sep 8
Multiple Airlines Logo
1:53 pm - 12:00 pm
PDX
-
BKK
32h 07m
2 stops
Multiple Airlines Logo
5:40 pm - 9:25 am
BKK
-
PDX
29h 45m
2 stops
$975Multiple Airlines
Wed, Sep 30 - Thu, Mar 18
Multiple Airlines Logo
2:53 pm - 12:00 pm
PDX
-
BKK
31h 07m
2 stops
Multiple Airlines Logo
1:10 pm - 10:50 am
BKK
-
PDX
35h 40m
2 stops
$977Multiple Airlines
Tue, Sep 1 - Sat, Sep 12
STARLUX Airlines Logo
8:18 pm - 4:40 pm
PDX
-
BKK
30h 22m
2 stops
STARLUX Airlines Logo
1:10 pm - 10:50 am
BKK
-
PDX
35h 40m
2 stops
$979STARLUX Airlines
Tue, Sep 1 - Tue, Sep 29
Multiple Airlines Logo
7:03 am - 4:40 pm
PDX
-
BKK
43h 37m
2 stops
Multiple Airlines Logo
5:40 pm - 9:25 am
BKK
-
PDX
29h 45m
2 stops
$982Multiple Airlines
Thu, Oct 1 - Tue, Mar 16
Multiple Airlines Logo
5:35 pm - 12:05 pm
PDX
-
BKK
27h 30m
2 stops
Multiple Airlines Logo
8:25 am - 6:31 pm
BKK
-
PDX
25h 06m
1 stop
$986Multiple Airlines
Mon, Jan 11 - Mon, Feb 1
Multiple Airlines Logo
5:41 pm - 12:10 pm
PDX
-
BKK
28h 29m
2 stops
Multiple Airlines Logo
7:25 am - 2:40 pm
BKK
-
PDX
21h 15m
1 stop
$987Multiple Airlines
Thu, Oct 1 - Wed, Mar 17
Multiple Airlines Logo
2:53 pm - 12:00 pm
PDX
-
BKK
31h 07m
2 stops
Multiple Airlines Logo
1:10 pm - 9:25 am
BKK
-
PDX
34h 15m
2 stops
$991Multiple Airlines
Sat, Sep 5 - Sat, Sep 12

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Japan Airlines flights from Portland to Bangkok

Our best Japan Airlines deals on Portland to Bangkok flight tickets
Japan Airlines
Aug 27
PDX7:03 amPortland
25h 57m
2 stops
BKK11:00 pmBangkok Suvarnabhumi
Sep 10
BKK7:55 amBangkok Suvarnabhumi
19h 42m
2 stops
PDX1:37 pmPortland
$1,063
Japan Airlines
Aug 9
PDX5:30 pmPortland
39h 30m
2 stops
BKK11:00 pmBangkok Suvarnabhumi
Sep 9
BKK7:55 amBangkok Suvarnabhumi
22h 55m
2 stops
PDX4:50 pmPortland
$1,068
Japan Airlines
Aug 9
PDX5:30 pmPortland
39h 30m
2 stops
BKK11:00 pmBangkok Suvarnabhumi
Sep 9
BKK7:55 amBangkok Suvarnabhumi
22h 55m
2 stops
PDX4:50 pmPortland
$1,074

Delta flights from Portland to Bangkok

Our best Delta deals on Portland to Bangkok flight tickets
Delta
Aug 5
PDX7:05 amPortland
28h 00m
2 stops
BKK1:05 amBangkok Suvarnabhumi
Aug 25
BKK9:40 pmBangkok Suvarnabhumi
40h 16m
2 stops
PDX11:56 pmPortland
$1,091
Delta
Aug 4
PDX9:29 amPortland
25h 36m
2 stops
BKK1:05 amBangkok Suvarnabhumi
Aug 28
BKK2:35 amBangkok Suvarnabhumi
31h 09m
2 stops
PDX7:44 pmPortland
$1,147
Delta
Aug 3
PDX5:30 amPortland
29h 35m
2 stops
BKK1:05 amBangkok Suvarnabhumi
Aug 19
BKK11:30 pmBangkok Suvarnabhumi
31h 44m
2 stops
PDX5:14 pmPortland
$1,198

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 23, 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

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
Quickest round-trip

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Thu 9/17

7:03 am-9:55 pm

2 stops24h 52m

Bangkok Suvarnabhumi

Sat 12/12

5:05 am-1:50 pm

2 stops23h 45m

$961

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Tue 9/1

5:55 pm-12:00 pm

2 stops28h 05m

Bangkok Suvarnabhumi

Tue 9/8

5:50 pm-10:50 am

2 stops31h 00m

$970

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Wed 9/30

1:53 pm-12:00 pm

2 stops32h 07m

Bangkok Suvarnabhumi

Thu 3/18

5:40 pm-9:25 am

2 stops29h 45m

$975

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Tue 9/1

2:53 pm-12:00 pm

2 stops31h 07m

Bangkok Suvarnabhumi

Sat 9/12

1:10 pm-10:50 am

2 stops35h 40m

$977

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Tue 9/1

8:18 pm-4:40 pm

2 stops30h 22m

Bangkok Suvarnabhumi

Tue 9/29

1:10 pm-10:50 am

2 stops35h 40m

$979

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Thu 10/1

7:03 am-4:40 pm

2 stops43h 37m

Bangkok Suvarnabhumi

Tue 3/16

5:40 pm-9:25 am

2 stops29h 45m

$982

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Mon 1/11

5:35 pm-12:05 pm

2 stops27h 30m

Bangkok Suvarnabhumi

Mon 2/1

8:25 am-6:31 pm

1 stop25h 06m

$986

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Thu 10/1

5:41 pm-12:10 pm

2 stops28h 29m

Bangkok Suvarnabhumi

Wed 3/17

7:25 am-2:40 pm

1 stop21h 15m

$987

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Sat 9/5

2:53 pm-12:00 pm

2 stops31h 07m

Bangkok Suvarnabhumi

Sat 9/12

1:10 pm-9:25 am

2 stops34h 15m

$991

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 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 $1,122 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 $967 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

22h 35m

Direct flights

None
The fastest flight from Portland to Bangkok takes 22h 35m
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. 22h 35m 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
8,479 reviews
Search Delta flights
Cathay PacificPriceFrom $653Free CancellationRating
7.6
1,423 reviews
Search Cathay Pacific flights
STARLUX AirlinesPriceFrom $754Free CancellationRating
8.8
360 reviews
Search STARLUX Airlines flights
Singapore AirlinesPriceFrom $759Free CancellationRating
8.2
1,578 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
Korean AirPriceFrom $806Free CancellationRating
8.4
1,221 reviews
Search Korean Air flights
United AirlinesPriceFrom $822Free CancellationRating
7.4
10,024 reviews
Search United Airlines flights
ANAPriceFrom $890Free CancellationRating
8.3
1,276 reviews
Search ANA flights
EVA AirPriceFrom $896Free CancellationRating
8.5
1,502 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