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Cheap flights from Portland to Bangkok from $411

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 10/2. 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

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
2:49 pm - 2:15 pm
PDX
-
BKK
33h 26m
3 stops
Multiple Airlines Logo
10:25 pm - 1:50 pm
BKK
-
PDX
53h 25m
3 stops
$824Multiple Airlines
Tue, Jul 21 - Tue, Jul 28
Multiple Airlines Logo
5:51 pm - 2:15 pm
PDX
-
BKK
54h 24m
3 stops
Multiple Airlines Logo
5:55 pm - 1:50 pm
BKK
-
PDX
33h 55m
3 stops
$855Multiple Airlines
Tue, May 12 - Mon, Jun 8
Multiple Airlines Logo
9:45 pm - 2:15 pm
PDX
-
BKK
50h 30m
3 stops
Multiple Airlines Logo
5:55 pm - 8:31 pm
BKK
-
PDX
40h 36m
3 stops
$857Multiple Airlines
Mon, Jul 20 - Wed, Jul 29
Multiple Airlines Logo
5:51 pm - 6:30 am
PDX
-
BKK
46h 39m
3 stops
Multiple Airlines Logo
10:25 pm - 4:50 pm
BKK
-
PDX
56h 25m
3 stops
$871Multiple Airlines
Tue, May 5 - Sat, Jun 6
Multiple Airlines Logo
5:51 pm - 2:15 pm
PDX
-
BKK
54h 24m
3 stops
Multiple Airlines Logo
10:25 pm - 4:50 pm
BKK
-
PDX
56h 25m
3 stops
$872Multiple Airlines
Tue, May 5 - Sat, Jun 6
Multiple Airlines Logo
5:59 pm - 6:30 am
PDX
-
BKK
46h 31m
3 stops
Multiple Airlines Logo
5:55 pm - 1:50 pm
BKK
-
PDX
33h 55m
3 stops
$888Multiple Airlines
Tue, May 26 - Mon, Jun 8
Multiple Airlines Logo
9:45 pm - 2:15 pm
PDX
-
BKK
50h 30m
3 stops
Multiple Airlines Logo
5:55 pm - 8:31 pm
BKK
-
PDX
40h 36m
3 stops
$893Multiple Airlines
Wed, Jul 8 - Wed, Jul 22
Multiple Airlines Logo
2:49 pm - 4:55 pm
PDX
-
BKK
36h 06m
3 stops
Multiple Airlines Logo
5:55 pm - 1:50 pm
BKK
-
PDX
33h 55m
3 stops
$894Multiple Airlines
Thu, Jul 9 - Wed, Jul 22
Multiple Airlines Logo
2:49 pm - 2:15 pm
PDX
-
BKK
33h 26m
3 stops
Multiple Airlines Logo
5:55 pm - 1:50 pm
BKK
-
PDX
33h 55m
3 stops
$895Multiple Airlines
Thu, Jul 9 - Thu, Jul 16
Multiple Airlines Logo
2:51 pm - 6:30 am
PDX
-
BKK
49h 39m
3 stops
Multiple Airlines Logo
10:25 pm - 1:50 pm
BKK
-
PDX
53h 25m
3 stops
$897Multiple Airlines
Thu, May 21 - Sun, May 31

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Qatar Airways flights from Portland to Bangkok

Our best Qatar Airways deals on Portland to Bangkok flight tickets
Qatar Airways
Aug 27
PDX1:59 pmPortland
26h 21m
2 stops
BKK6:20 amBangkok Suvarnabhumi
Sep 9
BKK2:30 amBangkok Suvarnabhumi
28h 20m
2 stops
PDX4:50 pmPortland
$1,045
Qatar Airways
Sep 2
PDX10:45 amPortland
30h 30m
2 stops
BKK7:15 amBangkok Suvarnabhumi
Sep 22
BKK2:30 amBangkok Suvarnabhumi
33h 31m
2 stops
PDX10:01 pmPortland
$1,053
Qatar Airways
Sep 1
PDX7:10 amPortland
34h 05m
2 stops
BKK7:15 amBangkok Suvarnabhumi
Sep 15
BKK2:30 amBangkok Suvarnabhumi
28h 20m
2 stops
PDX4:50 pmPortland
$1,054

United Airlines flights from Portland to Bangkok

Our best United Airlines deals on Portland to Bangkok flight tickets
United Airlines
May 4
PDX5:30 amPortland
33h 05m
3 stops
BKK4:35 amBangkok Suvarnabhumi
May 20
BKK3:45 pmBangkok Suvarnabhumi
22h 48m
2 stops
PDX12:33 amPortland
$1,267
United Airlines
May 5
PDX1:37 pmPortland
29h 58m
3 stops
BKK9:35 amBangkok Suvarnabhumi
Jun 6
BKK3:45 pmBangkok Suvarnabhumi
32h 35m
2 stops
PDX10:20 amPortland
$1,311
United Airlines
May 3
PDX5:30 amPortland
38h 05m
3 stops
BKK9:35 amBangkok Suvarnabhumi
May 18
BKK3:45 pmBangkok Suvarnabhumi
41h 01m
2 stops
PDX6:46 pmPortland
$1,315

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 April 21, 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

Tue 7/21

2:49 pm-2:15 pm

3 stops33h 26m

Bangkok Suvarnabhumi

Tue 7/28

10:25 pm-1:50 pm

3 stops53h 25m

$824

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Tue 5/12

5:51 pm-2:15 pm

3 stops54h 24m

Bangkok Suvarnabhumi

Mon 6/8

5:55 pm-1:50 pm

3 stops33h 55m

$855

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Mon 7/20

9:45 pm-2:15 pm

3 stops50h 30m

Bangkok Suvarnabhumi

Wed 7/29

5:55 pm-8:31 pm

3 stops40h 36m

$857

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Tue 5/5

5:51 pm-6:30 am

3 stops46h 39m

Bangkok Suvarnabhumi

Sat 6/6

10:25 pm-4:50 pm

3 stops56h 25m

$871

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Tue 5/5

5:51 pm-2:15 pm

3 stops54h 24m

Bangkok Suvarnabhumi

Sat 6/6

10:25 pm-4:50 pm

3 stops56h 25m

$872

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Tue 5/26

5:59 pm-6:30 am

3 stops46h 31m

Bangkok Suvarnabhumi

Mon 6/8

5:55 pm-1:50 pm

3 stops33h 55m

$888

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Wed 7/8

9:45 pm-2:15 pm

3 stops50h 30m

Bangkok Suvarnabhumi

Wed 7/22

5:55 pm-8:31 pm

3 stops40h 36m

$893

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Thu 7/9

2:49 pm-4:55 pm

3 stops36h 06m

Bangkok Suvarnabhumi

Wed 7/22

5:55 pm-1:50 pm

3 stops33h 55m

$894
Quickest round-trip

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Thu 7/9

2:49 pm-2:15 pm

3 stops33h 26m

Bangkok Suvarnabhumi

Thu 7/16

5:55 pm-1:50 pm

3 stops33h 55m

$895

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Thu 5/21

2:51 pm-6:30 am

3 stops49h 39m

Bangkok Suvarnabhumi

Sun 5/31

10:25 pm-1:50 pm

3 stops53h 25m

$897

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 March instead. Flights to Bangkok in March, while not as cheap as those in April, still average around $927.

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 $1,057 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 $961 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

23h 53m

Direct flights

None
The fastest flight from Portland to Bangkok takes 23h 53m
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. 23h 53m 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
8,433 reviews
Search Delta flights
Cathay PacificPriceFrom $653Free CancellationRating
7.6
1,283 reviews
Search Cathay Pacific flights
STARLUX AirlinesPriceFrom $754Free CancellationRating
8.9
299 reviews
Search STARLUX Airlines flights
Singapore AirlinesPriceFrom $759Free CancellationRating
8.2
1,501 reviews
Search Singapore Airlines flights
Japan AirlinesPriceFrom $776Free CancellationRating
8.3
1,786 reviews
Search Japan Airlines flights
China AirlinesPriceFrom $781Free CancellationRating
8.3
818 reviews
Search China Airlines flights
ANAPriceFrom $785Free CancellationRating
8.4
1,185 reviews
Search ANA flights
Korean AirPriceFrom $795Free CancellationRating
8.4
1,212 reviews
Search Korean Air flights
United AirlinesPriceFrom $821Free CancellationRating
7.4
9,614 reviews
Search United Airlines flights
EVA AirPriceFrom $896Free CancellationRating
8.5
1,422 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