$443 Find Cheap Flights from Portland to Bangkok

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 8/20. 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, 0 bags

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

 
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.
Travelers love KAYAK
41.299.237 searches in the past 7 days on KAYAK

Save 23% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Everything you should know

Cheapest round-trip
$913
Typical prices: $1,164-$897
Multiple Airlines
Wed 5/6Mon 5/18
PDX - BKK • 2 stops
Cheapest one-way
$443
Typical prices: $456-$754
Philippine Airlines
Thu 8/20
PDX - BKK • 2 stops
Top airlines
Cheapest • from $914 (round-trip)
Best reviews • 9.0 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Bangkok!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Portland to Bangkok (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 Bangkok 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

Wed, May 6 - Mon, May 18
Multiple Airlines Logo
5:51 pm - 9:45 am
PDX
-
BKK
25h 54m
2 stops
Multiple Airlines Logo
5:30 pm - 9:47 am
BKK
-
PDX
30h 17m
2 stops
$913Multiple Airlines
Wed, May 6 - Mon, May 18
China Airlines Logo
5:51 pm - 4:20 pm
PDX
-
BKK
32h 29m
2 stops
China Airlines Logo
10:50 am - 9:29 am
BKK
-
PDX
36h 39m
2 stops
$914China Airlines
Tue, Apr 21 - Tue, May 19
Multiple Airlines Logo
8:46 pm - 9:45 am
PDX
-
BKK
22h 59m
2 stops
Multiple Airlines Logo
5:30 pm - 9:47 am
BKK
-
PDX
30h 17m
2 stops
$921Multiple Airlines
Thu, Apr 30 - Wed, May 6
Multiple Airlines Logo
5:51 pm - 4:20 pm
PDX
-
BKK
32h 29m
2 stops
Multiple Airlines Logo
2:40 am - 9:38 am
BKK
-
PDX
44h 58m
2 stops
$935Multiple Airlines
Tue, Apr 28 - Sun, May 31
Multiple Airlines Logo
7:00 am - 11:30 pm
PDX
-
BKK
26h 30m
2 stops
Multiple Airlines Logo
4:45 pm - 4:50 pm
BKK
-
PDX
38h 05m
2 stops
$938Multiple Airlines
Tue, Apr 14 - Mon, May 11
Multiple Airlines Logo
7:05 am - 11:30 pm
PDX
-
BKK
26h 25m
2 stops
Multiple Airlines Logo
1:35 am - 1:47 pm
BKK
-
PDX
26h 12m
2 stops
$943Multiple Airlines
Sat, May 9 - Wed, Jun 3
Multiple Airlines Logo
5:51 pm - 9:45 am
PDX
-
BKK
25h 54m
2 stops
Multiple Airlines Logo
5:30 pm - 9:47 am
BKK
-
PDX
30h 17m
2 stops
$947Multiple Airlines
Tue, Apr 21 - Tue, May 19
United Airlines Logo
7:15 am - 9:35 am
PDX
-
BKK
36h 20m
3 stops
United Airlines Logo
9:35 am - 4:33 pm
BKK
-
PDX
44h 58m
2 stops
$951United Airlines
Sat, Apr 11 - Wed, May 27
China Airlines Logo
9:00 am - 9:45 am
PDX
-
BKK
34h 45m
2 stops
China Airlines Logo
1:20 pm - 9:29 am
BKK
-
PDX
34h 09m
2 stops
$956China Airlines
Sun, Apr 19 - Mon, May 11
Multiple Airlines Logo
9:30 pm - 11:30 pm
PDX
-
BKK
36h 00m
2 stops
Multiple Airlines Logo
3:10 pm - 9:30 am
BKK
-
PDX
32h 20m
2 stops
$962Multiple Airlines
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.

How much is a round-trip flight from Portland to Bangkok?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Portland to Bangkok departing in May.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Portland to Bangkok, 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 is September, where tickets cost $904 (return) on average. On the other hand, the most expensive months are December and June, where the average cost of round-trip tickets is $1,672 and $1,385 respectively.

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

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, 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, you should book around 1 week before departure. For the absolute cheapest price, our data suggests you should book 26 weeks before departure.

Good to know

Cheapest flight$443
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 flights from Portland to Bangkok

  • What is the cheapest flight from Portland to Bangkok?

    In the last 3 days, the lowest price for a flight from Portland to Bangkok was $490 for a one-way ticket and $913 for a round-trip.

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

    Yes, you’ll need a passport to travel to Bangkok from Portland.

  • Which airports will I be using when flying from Portland to Bangkok?

    On your way to Bangkok, you’ll fly out from Portland. You’ll be landing in one of Bangkok’s 2 airports: Bangkok Suvarnabhumi or Bangkok Don Mueang Intl.

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

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

  • Which airline alliances offer flights from Portland to Bangkok?

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

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

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

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

    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.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Bangkok 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?

    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 with an airline and back to Portland with another airline.

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

    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 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.
9.0
STARLUX AirlinesOverall score based on 293 reviews
8.9Comfort
9.2Crew
9.0Boarding
8.7Food
8.8Entertainment
Airline reviews

Everything is smooth. Very good. Except flight arrived SFO 30min late.

8.0 Excellentbryan, Mar 2026
TPE - SFO
Read more STARLUX Airlines reviews

Everything is smooth. Very good. Except flight arrived SFO 30min late.

more new movies and the blockbuster movies that everyone likes

Great airline. Kind staff, before m, during, and after the flight. They Directed you the whole way. Even when I arrived at my transfer destination, flight attendants guided passengers on which direction to go. I would definitely fly STARLUX again.

Got dinner and breakfast! They had mahjong game in entertainment system. Current movies. Loved the slippers, sleeping mask packet. Great experience for a long flight

Leg room was great. Friendly crew. Food is great. Crew always kept the toilet clean.

Excellent. Airline was very clean, staff was excellent, very professional. Economy seats were still large and comfortable. Meals were included and with good options. We were given a blanket and pillow as well as a comfort kit including an eye mask, ear plugs, and tooth brush. Would highly recommend.

Business Class is exceptional, from the lie flat seats to the wide range of food on board. Can’t wait for our next journey with Starlux!

Th tray was dirty when pulled it out. Still oily and food stains can clearly see last trip cleaner did not clean well. The toilet sink water did not drain quickly enough.

Majority of the movie entertainment loaded in the aircraft were quite old.

Crew is very attentive. Another new airbus 350-900 plane. Very modern.

I always preferred EVA air every time I visit Philippines. It’s just this time that I have to be very early to make sure that I don’t miss my flight due to TSA problem. There’s only one choice of food serve which you use to have 2 on our flight from Taiwan to Philippines . Otherwise I will still use EVA air in my future flight.

Service was great. Flight schedule was on time. Staffs are friendly.

Overall was good but it would be good if the airline is providing snack such as sandwich or instant noodle between meals for LA to Taipei

Amazing customer service. BUT!! It would be nice if the flight attendants SMILE a little more, I know they are doing their job, but it is importantly to smile back and be warm to passengers. Nobody is trying to hit on them, it’s just being polite. So, please Taiwanese flight attendants: SMILE MORE WHEN YOU INTERACT WITH PAYING CUSTOMERS

It was easy going check in was easy and pretty fast entertainment was up to date on movies and food was ok

Premium Economy seats were more comfortable than other airlines I have recently been on. Great staff. Food was unremarkable.

From checking at the airport to end of flights, attentive and caring personnel, comfortable seating, great food. I plan on using EVA again. Thank you, all.

Very nice, I feel I got good value for the price.

Amazing one of the best airlines i have ever traveled with. I live with medical issues called psoriatic arthritis and was in pain on the flight. The flight crew made sure I had fresh ice pack ever hour. Going above an beyond with service and care ⭐️⭐️⭐️⭐️⭐️.

Certain flight crew member were rude and short with me when I asked questions.

The boarding process was efficient and quick. The seats were comfortable. The food was good. The service was excellent. We had a lovely flight from Seattle on Korean air

Flight crew was fantastic. The aircraft was meticulously cleaned at all times. The crew was continuously checking to see if the passengers were ok.

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.

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.

I had a cancelled flight because of technical issues going to my destination, and a delayed flight coming home. All told it wasn’t a total bust.

Just a bad day to fly. Flight was delayed from scheduled 6:50 pm departure to 8:50 pm. Combination of factors mostly related to weather at the destination airport (which is where the incoming flight originated) which delayed the inbound flight over an hour. Once on board, we taxied but had to hold again on the taxiway for 10 minutes or so. We did not get wheels up until after 9 pm. The flight was smooth but about 18 minutes from our destination, we had to hold for several minutes more due to weather at ORD. We finally landed at ORD about 11:08 pm (accounting for the time difference, that was about a 3 hour delay from our scheduled departure time). It felt like we were never going to get to our destination. But the flight crew and attendants were very good. The movie selection onboard was also very nice. Got to watch half of a movie just during our taxi from the gate at ATL due to the delay!

Fine. The issues I had were associated with luggage being delayed from Turkey to Tanzania

No meal service to the back of the plane as it started late or was too slow to get it out before it was time to land.

Terrible, if possible won't be flying again anytime soon!

Efficient boarding and early departure. Very smooth flight. Early arrival in ATL. Great flight.

We purchase first class seats for the first time for multiples of standard economy ticket. There was no access to the club lounge and no priority boarding. The meal and the service once on the plane were superior and the seat was nicer, but not worth the price difference. I will be happy to seat in economy and spend the difference on more travel.

The business class seat is exceptional. I wish the food is more palatable.

Wonderful in-seat entertainment with seatback screens and huge selection of quality movies. The ability to bluetooth connect headphones was amazing.

the entire flight felt off. The crew seemed uninterested and disengaged. The food service was really bad - overcooked, bland, weird food service. They actually woke us up to serve chicken wraps in the middle of the night, after dinner and before breakfast. Made no sense. Ultimately, I was glad they did though, because the breakfast had been held for so long it was inedible. Eggs, potatoes, sausage - all disgusting. We were asked to "honor" the lavatories for premium customers and stay in our own cabin: this was also strange. So people in economy didn't pay enough to use the closest toilet to them??? It's a toilet. All in all, not the experience I have come to expect from United Airlines. The return flight from Paris to SFO was better, btw.

I bought a ticket from Kayak. When I got to the airport, the was no ticket. I had to pay 5X to get to my destination. No response received from Kayak. I will NEVER use them again.

My wallet was stolen while I was sleeping on the plane.

Good boarding but extremely cold temperature in both flights (60 F!).

The whole plane smelled and felt old. The seats were very uncomfortable. Multiple delays. Extra fees.

Very rude gate attendants in San Francisco who didn’t let me bring my little carry on (smaller than usual size) and after boarding I realized that there still were a lot of overhead compartment space (like a full section available in some spots). That made me lose 30 minutes at my destination at 1am and it could have broken something fragile that I had in it

The most uncomfortable flight I’ve ever been on. I’m only 5,4” and barely had enough room to exist, couldn’t even fully relax my shoulders. Not sure why they bother with snacks. Half a coke and a single cookie?? Wow. Purchasable food looked gross too. Remember when airlines used to treat you like a human being?

Departed Palm Springs over an hour late because there’s only one gate, and it has always delayed by the arriving and departing flight to Toronto and the arriving flight from Vancouver.

I checked a bag and there was only one agent to assist all customers with any issues.

I want to thank Carlos at the Miami AC desk - he was amazing and went over and above to help us out. Thank you Carlos and all the best to you!!! You made our faith in AC feel great! Sincerely, David Cubitt

Flight was canceled due to mechanical issues. After a considerable wait in the queue, Air Canada customer service was very helpful to get us on another flight. I am disappointed to report our rescheduled flight is for three days from now. Three days of extra expenses and inconvenience is unacceptable.

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

Information on your arrival and departure airports