PDX - BKK

$352 Find Cheap Flights from Portland to Bangkok Suvarnabhumi Airport

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Portland to Bangkok departing on 2/3. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy

KAYAK searches hundreds of travel sites at once for deals on flights to Bangkok Suvarnabhumi Airport

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Portland to Bangkok.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Portland to Bangkok.
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Everything you should know

Cheapest round-trip
$816
Overall average: $1,039
China Airlines
Sun 11/2Sat 11/15
PDX - BKK • 2 stops
Cheapest one-way
$352
Typical prices: $536-$696
Multiple Airlines
Tue 2/3
PDX - BKK • 2 stops
Top airlines
China Airlines
Cheapest • from $816 (round-trip)
STARLUX Airlines
Best reviews • 8.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to book
2 weeks
in advance
Our data shows that travelers who book at least 2 weeks in advance save around 7% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
September
Cheapest • 13% price drop
January
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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We hope you love your trip to Bangkok!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Portland to Suvarnabhumi (PDX-BKK)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Portland to Suvarnabhumi that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Portland to Bangkok

Sun, Nov 2 - Sat, Nov 15
China Airlines Logo
10:30 am - 1:05 pmPDX-BKK
35h 35m2 stops
China Airlines Logo
2:35 am - 9:40 amBKK-PDX
46h 05m2 stops
$816China Airlines
Find Deal
Wed, Nov 19 - Sat, Mar 14
China Airlines Logo
7:20 am - 4:45 pmPDX-BKK
42h 25m2 stops
China Airlines Logo
5:50 pm - 9:35 amBKK-PDX
29h 45m2 stops
$817China Airlines
Find Deal
Sun, Nov 23 - Sat, Dec 6
Multiple Airlines Logo
2:15 pm - 12:35 pmPDX-BKK
31h 20m2 stops
Multiple Airlines Logo
1:45 pm - 9:20 pmBKK-PDX
22h 35m2 stops
$822Multiple Airlines
Find Deal
Tue, Jan 6 - Mon, Jan 19
STARLUX Airlines Logo
8:32 pm - 4:30 pmPDX-BKK
28h 58m2 stops
STARLUX Airlines Logo
1:45 pm - 10:46 pmBKK-PDX
24h 01m2 stops
$827STARLUX Airlines
Find Deal
Sun, Jan 4 - Thu, Jan 22
STARLUX Airlines Logo
3:59 pm - 12:35 pmPDX-BKK
29h 36m2 stops
STARLUX Airlines Logo
1:45 pm - 8:47 pmBKK-PDX
22h 02m2 stops
$838STARLUX Airlines
Find Deal
Tue, Oct 28 - Thu, Nov 13
United Airlines Logo
7:30 am - 11:25 amPDX-BKK
37h 55m3 stops
United Airlines Logo
4:55 pm - 10:53 amBKK-PDX
32h 58m3 stops
$860United Airlines
Find Deal
Wed, Nov 12 - Wed, Nov 19
United Airlines Logo
6:00 am - 11:25 amPDX-BKK
38h 25m3 stops
United Airlines Logo
4:55 pm - 8:38 pmBKK-PDX
42h 43m2 stops
$864United Airlines
Find Deal
Mon, Oct 20 - Sun, Nov 2
EVA Air Logo
5:55 pm - 11:00 amPDX-BKK
27h 05m2 stops
EVA Air Logo
2:15 am - 1:23 pmBKK-PDX
26h 08m2 stops
$915EVA Air
Find Deal
Mon, Dec 1 - Mon, Dec 15
Delta Logo
5:30 am - 12:45 amPDX-BKK
28h 15m2 stops
Delta Logo
12:55 am - 6:50 pmBKK-PDX
32h 55m2 stops
$928Delta
Find Deal
Mon, Nov 24 - Mon, Dec 22
EVA Air Logo
5:41 pm - 11:30 amPDX-BKK
26h 49m2 stops
EVA Air Logo
2:15 am - 6:18 amBKK-PDX
43h 03m2 stops
$929EVA Air
Find Deal
Booking Insights

KAYAK's insights & trends for Portland to Bangkok flights

Get data-powered insights and trends into flights from Portland to Bangkok to help you find the cheapest flights, the best time to fly and much more.

What’s the cheapest day of the week to fly from Portland to Bangkok Suvarnabhumi Airport?

The average price of all round-trip flights from Portland to Bangkok Suvarnabhumi Airport clicked on KAYAK for each day over the last 12 months.

Your flight ticket price will generally be cheaper if you fly to Bangkok Suvarnabhumi Airport on a Monday and more expensive on a Friday. On your return trip to Portland, you should consider flying back on a Tuesday, and avoid Fridays for better deals.

What is the cheapest month to fly from Portland to Bangkok Suvarnabhumi Airport?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Portland to Bangkok Suvarnabhumi Airport, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Portland to Bangkok Suvarnabhumi Airport is September, where tickets cost $949 (return) on average. On the other hand, the most expensive months are December and June, where the average cost of round-trip tickets is $1,593 and $1,469 respectively.

How far in advance should I book a flight from Portland to Bangkok Suvarnabhumi Airport?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Portland to Bangkok Suvarnabhumi Airport, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Portland to Bangkok Suvarnabhumi Airport, you should book around 2 weeks before departure, which saves you about 7% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 23 weeks before departure.

Good to know

Low seasonMay
Cheapest flight$352
Best time to beat the crowds with an average 10% drop in price.
Most popular time to fly and prices are also 5% lower on average.
Flight from Portland to Bangkok Suvarnabhumi Airport

When to book flights from Portland to Bangkok

Are your dates flexible? Find out the best times to travel from Portland to Bangkok based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking Portland to Bangkok Suvarnabhumi Airport flights

  • What is the cheapest flight from Portland to Bangkok Suvarnabhumi Airport?

    In the last 3 days, the lowest price for a flight from Portland to Bangkok Suvarnabhumi Airport was $352 for a one-way ticket and $816 for a round-trip.

  • Do I need a passport to fly between Portland and Bangkok Suvarnabhumi Airport?

    Yes, you'll most likely have to show a valid passport before boarding the plane in Portland and on arrival in Bangkok Suvarnabhumi Airport.

  • Which aircraft models fly most regularly from Portland to Bangkok Suvarnabhumi Airport?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Portland to Bangkok Suvarnabhumi Airport?

    oneworld, SkyTeam, and Star Alliance are the airline alliances operating flights between Portland and Bangkok Suvarnabhumi Airport, with oneworld being the most commonly used for this route.

  • What is the most popular layover when flying to Bangkok Suvarnabhumi Airport from Portland?

    Seattle is the most popular layover city among KAYAK users traveling from Portland to Bangkok Suvarnabhumi Airport.

  • Which is the best airline for flights from Portland to Bangkok, STARLUX Airlines or Korean Air?

    The two airlines most popular with KAYAK users for flights from Portland to Bangkok are STARLUX Airlines and Korean Air. With an average price for the route of $958 and an overall rating of 8.9, STARLUX Airlines is the most popular choice. Korean Air is also a great choice for the route, with an average price of $1,116 and an overall rating of 8.4.

  • How does KAYAK find such low prices on flights from Portland to Bangkok Suvarnabhumi Airport?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Portland to Bangkok Suvarnabhumi Airport.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Portland to Bangkok Suvarnabhumi Airport?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Bangkok Suvarnabhumi Airport from Portland is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Portland to Bangkok Suvarnabhumi Airport?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Bangkok Suvarnabhumi Airport with an airline and back to Portland with another airline. Booking your flights between Portland and BKK can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Portland to Bangkok Suvarnabhumi Airport?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Bangkok Suvarnabhumi Airport from Portland up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top 5 airlines serving from Portland to Bangkok

 
See real verified KAYAK customer reviews for airlines flying from Portland to Bangkok. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Portland to Bangkok? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.9
STARLUX AirlinesOverall score based on 219 reviews
9.2Crew
8.9Comfort
8.8Entertainment
8.7Food
8.9Boarding
Airline reviews

Loved the boarding process. All airlines should board from the back to the front. Very efficient. Food was excellent, crew were great, seats were spacious and comfortable and the entertainment screen was the best I have seen.

10.0 ExcellentBrian, Oct 2025SIN - TPE
Read more STARLUX Airlines reviews

Loved the boarding process. All airlines should board from the back to the front. Very efficient. Food was excellent, crew were great, seats were spacious and comfortable and the entertainment screen was the best I have seen.

Flight cancelled due to inclement weather yet rival airline EVA Air with the same route departed 2 hours later and landed safely while our flight was cancelled and rescheduled for 36 hours later.

The staff in air and on land went above and beyond! I would definately recommend and we will fly Starlux again!

I need Starlux to respond to my complaint and issues for my flight.

Someon vomit during boarding. My seat was next to the vomit. I asked crew member to switch seat, but they said it was a full flight. I had my baby with me. My baby got sick after the flight. He was in the hospital for 2 days.

The airplane so clean and they have a nice crew

it they come out with resent movie and good food

The crew could have been kinder and less pushy. The premium economy seats don't have enough cushion. The seats are to hard and the flight became painful and uncomfortable after an hour of flying.

Aircraft is new and toilets are spacious, but toilets are quite filthy. They should clean more often. They have a long list of drink offer but are actually not available during meal. They said they’ll come back with them and you don’t get them until after dinner which means you eat your meals without any drinks if you were to get something that they don’t have on the cart. They are strict about removing headphones during take off and landing which is new to us since the movies did not get turned off. Instead, we we’re forced to watch their commercials during that time. We probably would fly with them again but not with the cost we spent. For the record, I work in tourism and travel a lot for inspections.

Our transit in Taipei was disappointing. The ground crew could not tell us where the lounge was located, so we wasted 15 minutes trying to find it. The airline has a great review, but our experience says otherwise.

They were trying to get people to check luggage because the over head compartments were full but when we boarded there were lots of empty places that people could have put the luggage.

I can't believe they put my wife and I in the two middle seats! It is a very long flight and we had single flyers on either side of us blocking the way to the bathroom! There's no reason to not give one of us the isle seat so we could have managed bathroom needs and snacks with convenience. So I think very poorly of Korean air to put us both in the middle, I've never had that happen before and will probably avoid this airline in the future because of this. We tried to have them change it but they didn't so you pretty much lost a customer because of it.

It was good, I liked the self-serve snacks but it was a little difficult to get the alcohol, which is understandable since I wouldn't want kids sneaking it.

Friendly flight attendants and gate agents. Very clean plane and food was good!

I was unable to select decent seats, and so I was stuck in the middle seat because it was selected for me

There was a lot of partial tv shows but not enough to last the flight. The food was incredible! The crew were so helpful and patient. Lots more space than what I usually get on an international flight. Very comfortable!

Stingy on the drinks - 15 hour direct flight and could barely get attention for some water

Not many people, so you can lay down on two seats

They did an excellent job helping me with a wheelchair. I couldn’t have asked for any better help.

The delay in Korea was a pain and set us back a day. I have to give big props to Korean Air for setting up a hotel with dinner and transportation to and from the hotel. I also needed assistance with a wheelchair and they did an outstanding job.

Suite lounge in Honolulu is very exclusive and boarding from the lounge into the plane is unique. First suites were huge and comfortable. Japanese meal is like a high end omakase meal. All the staff were very kind and provided sophisticated service. Fast Track upon landing was appreciated but not needed this time because immigration was so empty and easy.

I like the service very much. The food just okay but maybe different culture who like, who don't like.

Warm the bread. Movies: better choices to include Chinese movies options or some of the older winners of flim festival

Almost 6 hours of delay with over 12 gate changes. Flight was supposed to depart around 6 and instead depart after 12am. No accommodations were offered than some snacks closer to midnight when the crew was planning to throw away some snacks.

Flight was on an ANA flight not air Japan. They did most excellent. Again the flight had excellent legroom for someone that is over 6 foot tall and the staff was very very nice. The only issue you may run into is that the person sitting next to you, may not be able to speak the same language as you.

The crew was very nice and polite. They made sure everybody got their meal and drinks. Even the economy class had a very adequate leg room for someone that is over 6 foot tall.

Purchased WiFi was slow to non functional. Staff was not personable or friendly. Seats were cramped. Boarding took long but I expected that.

Luckily I just tried to sleep. But the entertainment system was awkward to operate. I hate all this stuff with apps and adding it to your phone and all. It is a nuisance. I would prefer a good magazine or newspaper in the pocket in front of me or available.

One of the best 14 hour flights I've ever had. Crew was friendly throughout which can be difficult on longer flights. The crew being kind and respectful is very important for me. Plane felt clean and I was able to get some well needed uninterrupted sleep. I put them slightly above Cathay Pacific as far as cleanliness the only down side was a lack of entertainment selections, but hey I am an American taking a trip on a Japanese airline so I cannot complain. Thank you ANA and the Tokyo airport all very friendly. Will see you soon

Poor. We weren’t able to check in online (for several hours until we gave up) for no apparent reasons although our passports were loaded successfully. When we were at the airport check-in, a rep helped us at the kiosk but she disregarded the KTN provided to her so we had to come back for it after being questioned by the TSA person…

Flight was good but there are way to many announcements for credit cards etc.

During booking, I kept trying submitting my payment from the Mexican website and it didn't work. After I had the idea to change it to the Canadian website, it worked but I had to be charged the equivalent of 50 CAD more. I received the clear instruction that I would only be able to check-in at the airport and that it was impossible to select a seat 24 hours before departure, that I had to pay 144 CAD to do so, although not only was I able to check-in 24 hours before departure, but I could have selected my seats for free then. All in all, I almost threw $200 out the window due to misleading information. Besides, the app kept crashing, the information to get to the gate on the app was inaccurate, my gate was switched and I was only informed once in the air (luckily I had noticed the departure pannel), I was not addressed in my language beforehand and even if I tried I was immediately answered in English (which meant the crew understood but didn't want to answer accordingly), there was only one snack & beverage service on my medium haul flight and no beverage service on my short haul flight. To be fair, the planes were comfortable, the crew apart from the language issue was helpful, dynamic and engaging, the plane was clean and the directions were clear and direct. United has a lot of potential to be one of my favourite airlines, but the devil is in the details and a lot of them missed the target.

Flight was timely, relatively comfortable, with decent entertainment and food served. Only problem encountered was with the free messaging which I highly appreciate, but it did not work from iphone to non-iphones.

Better WiFi. I cannot understand that in 2025, United is so behind on a technology that is now a necessity and still painfully unreliable, slow and keeps disconnecting.

The entertainment available didn’t work for anyone on the flight. Long 6 hr flight with no entertainment option and the staff didn’t know until an hour into the flight when we made sure they knew about it. They had no way to fix it.

Crew seemed a bit cranky. No seatback screens. But boarding was efficient and on time and we arrived early.

The worst landing I have ever had on a domestic flight. Thought we would lose the landing gear on landing in Newark. Then we spent 40 minutes trying to position the plane in the right place to be able to get the jet way to the plane. The plane arrived stopped. The announcer was that we were there. Everybody got up, then we were told to sit back down because they had to have us towed to a different position. We got towed and then everyone stood up and they told us we were in the wrong position to sit back down again, and then we got towed to a different position This did not happen immediately. It was 30 minutes while we wandered around a small section of the tarmac in Newark close to the gate, but apparently not close enough. Horrifying experience The CAB should be investigating that flight

Food was poorly timed and not good.. Hand held snacks, really. I kept asking for water and never got any. Service was rushed for a 7-hour flight.

Boarding was organized. Old plane. Seat fairly comfortable. Business Class much too large so you don’t receive as much attention as you should considering what you pay for the seat.

Boarding was organized. Plane seats comfortable and service was attentive. Food options were good.

Plane left an hour late, I missed my connection and my bow case was never even loaded on the plane in VA. I deal with this type of nonsense everytime I fly air canada.

For goodness sake, board from the back of the plane to the front and assign overhead space. It would fix everything. Seriously.

Elderly female flight attendant was not customer friendly. There were only about 12 people on a regional jet that had about 60 seats. There were 8 exit row seats and none of them were taken. We attempted to sit in those seats and the flight attendant gave the standard " you didn't pay for those" so she would not allow us to move. What harm would that have caused ? They assigned seats to 5 of the 12 people in 2 rows, row 20 and 21. A simple friendly customer experience gesture of allowing us to sit in exit rows would have gone a long way in me having a very favorable impression on Air Canada. After that I have very poor impression of Air Canada and will not fly with them when I can avoid it.

It was a smooth flight both in the sky and landing!

Pearson Airport could not properly handle all the passengers who they needed to process in order to properly get them on board. As a result, I missed the departure of my flight from Toronto. The only saving grace is that Air Canada found a flight that only delayed me by one hour. However, this was no thanks to Pearson Airport!

Almost everything it was a “cool” ambiance but we arrived to Toronto so that it’s ok for me

The crew was really nice. The plane seats were kinda small even for a 5’6” / 158 lbs person.

Fare was great, seat comfort the opposite as cushion was worn out. Ok for 2 hour flight, not for 4.5 hour flight..

Check in agent was very helpful and polite. He helped me board the earlier flight back home instead of waiting 2 hours at the airport for the next flight

Fair. What's the point of partnering with United if we cannot use the lounge. My wife is a frequent flier with United but we were refused access to Air Canada lounge

Everything you need to know for your flight from Portland to Bangkok

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