$447 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 9/8. 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.
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Everything you should know

Cheapest round-trip
$984
Typical prices: $1,096-$868
Multiple Airlines
Tue 9/22Tue 10/6
PDX - BKK • 2 stops
Cheapest one-way
$447
Typical prices: $459-$489
Philippine Airlines
Tue 9/8
PDX - BKK • 2 stops
Top airlines
Cheapest • from $995 (round-trip)
Best reviews • 8.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
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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

Tue, Sep 22 - Tue, Oct 6
Multiple Airlines Logo
7:40 pm - 12:10 pm
PDX
-
BKK
26h 30m
2 stops
Multiple Airlines Logo
7:00 am - 7:06 pm
BKK
-
PDX
26h 06m
2 stops
$984Multiple Airlines
Tue, Sep 8 - Sun, Sep 13
STARLUX Airlines Logo
3:33 pm - 4:40 pm
PDX
-
BKK
35h 07m
2 stops
STARLUX Airlines Logo
5:50 pm - 10:50 am
BKK
-
PDX
31h 00m
2 stops
$995STARLUX Airlines
Thu, Aug 27 - Thu, Sep 10
STARLUX Airlines Logo
5:38 pm - 12:00 pm
PDX
-
BKK
28h 22m
2 stops
STARLUX Airlines Logo
5:50 pm - 9:25 am
BKK
-
PDX
29h 35m
2 stops
$997STARLUX Airlines
Wed, Aug 5 - Tue, Sep 1
ANA Logo
7:00 am - 11:55 pm
PDX
-
BKK
26h 55m
2 stops
ANA Logo
9:35 pm - 2:47 pm
BKK
-
PDX
31h 12m
2 stops
$998ANA
Tue, Dec 1 - Tue, Dec 15
United Airlines Logo
5:35 am - 5:10 am
PDX
-
BKK
32h 35m
2 stops
United Airlines Logo
9:10 am - 12:54 am
BKK
-
PDX
30h 44m
2 stops
$999United Airlines
Tue, Nov 10 - Tue, Feb 23
Multiple Airlines Logo
5:00 pm - 12:35 pm
PDX
-
BKK
28h 35m
2 stops
Multiple Airlines Logo
1:45 pm - 11:54 pm
BKK
-
PDX
25h 09m
2 stops
$1,000Multiple Airlines
Sun, Aug 16 - Sun, Aug 30
STARLUX Airlines Logo
7:00 am - 4:40 pm
PDX
-
BKK
43h 40m
2 stops
STARLUX Airlines Logo
1:10 pm - 9:25 am
BKK
-
PDX
34h 15m
2 stops
$1,001STARLUX Airlines
Sun, Nov 15 - Mon, Jan 25
United Airlines Logo
7:30 am - 12:20 am
PDX
-
BKK
25h 50m
2 stops
United Airlines Logo
9:10 am - 12:54 am
BKK
-
PDX
30h 44m
2 stops
$1,002United Airlines
Fri, Nov 27 - Mon, Dec 7
United Airlines Logo
5:15 am - 12:20 am
PDX
-
BKK
28h 05m
2 stops
United Airlines Logo
7:10 am - 8:33 pm
BKK
-
PDX
28h 23m
2 stops
$1,003United Airlines
Wed, Aug 5 - Mon, Aug 31
United Airlines Logo
1:14 pm - 9:35 am
PDX
-
BKK
30h 21m
3 stops
United Airlines Logo
7:00 am - 10:45 pm
BKK
-
PDX
29h 45m
2 stops
$1,005United 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 September.

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 January, where tickets cost $99 (return) on average. On the other hand, the most expensive months are August and December, where the average cost of round-trip tickets is $794 and $781 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 24 weeks before departure.

Good to know

Cheapest flight$447
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

  • Can I bring liquids in my carry-on baggage on a United Airlines flight to Bangkok?

    You can bring liquids onboard your United Airlines flight to Bangkok, provided they comply with the Transportation Security Administration (TSA) regulations. All liquids must be in containers of 3.4 ounces (100 ml) or less and should be placed in a clear, resealable plastic bag with a maximum capacity of one quart (one liter).

  • Which airline promotes eco-friendliness for flights from Portland to Bangkok?

    United Airlines stands out for its commitment to environmental sustainability. They have invested in fuel-efficient aircraft, supported sustainable aviation fuel development, and collaborated with Carbon Zero to offer carbon offset credits. Through these initiatives, United Airlines actively reduces its carbon footprint, making it an eco-friendly choice for this route.

  • What are the public transportation options from Bangkok Suvarnabhumi Airport (BKK) to downtown Bangkok?

    BKK is well-connected to downtown Bangkok by various means of public transportation. The Airport Rail Link is a fast and convenient way to reach the city center. The train departs from the basement of the airport and connects to the BTS Skytrain, allowing you to access various parts of the city. Alternatively, taxis and ride-hailing services are readily accessible at the airport, providing a convenient and direct transportation option to your downtown destination.

  • Which airlines have lounges at Portland International Airport?

    PDX is home to lounges operated by Alaska Airlines, Delta Air Lines, and United Airlines. Access to these lounges varies based on membership or ticket class. Alaska Lounge welcomes Alaska Airlines and its partner airline passengers, while Delta Sky Club offers access to Delta Air Lines and SkyTeam members. United Club grants entry to United Airlines and Star Alliance members.

  • What is the cheapest flight from Portland to Bangkok?

    In the last 5 days, the lowest price for a flight from Portland to Bangkok was $447 for a one-way ticket and $995 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.

KAYAK’s top tips for finding a cheap flight from Portland to Bangkok

  • When embarking on a one-stop flight from Portland to Bangkok, your layover destination will depend on the airline you choose. If you travel with Delta Air Lines, you'll layover at Seoul (ICN). In contrast, if you journey with United Airlines, your layover will be at Tokyo (NRT).
  • Portland International Airport (PDX) consists of a single terminal building with five concourses: A, B, C, D, and E. The concourse you'll depart from will depend on the airline you choose. For instance, if you opt for Air Canada, your departure will be from Concourse E, while United Airlines departures are typically from Concourse C.
  • If you're driving to PDX and require long-term parking, the airport offers a hassle-free solution. The Economy Parking Lot is an affordable option, providing ample secure parking spaces. The lot is conveniently connected to the terminal complex via a shuttle service, ensuring a convenient transition from your vehicle to the airport.
  • If you're traveling with young children, consider United Airlines for a family-friendly experience. United Airlines provides priority boarding for families with young kids, ensuring a smooth and stress-free embarkation process. Additionally, they boast of an onboard entertainment system, including a diverse selection of kid-friendly content, ensuring an enjoyable journey for your little ones.
  • Suppose you choose to fly with Air Canada. In that case, it's important to familiarize yourself with their carry-on baggage policy. You are allowed to bring one carry-on bag onboard, which should fit in the overhead bin. Ensure it does not exceed the dimensions of 9 x 15.5 x 21.5 inches and weighs no more than 25 lbs. In addition, you may also bring one personal item which should be small enough to fit comfortably under the seat in front of you.

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 337 reviews
8.6Food
8.8Entertainment
8.9Comfort
9.2Crew
8.9Boarding
Airline reviews

Customer service in Hanoi needs work, outside of that, everything was good.

6.0 GoodAnonymous, Jun 2026
HAN - TPE
Read more STARLUX Airlines reviews

Customer service in Hanoi needs work, outside of that, everything was good.

Premium economy seats that I paid extra are not worthed.there was not much difference from the regular economy seats yet I paid alot more for it Disappointed

It did not feel like a luxury airline. We had booked premium economy and opted for AVML meals. This was one of the worst meal in any of the flights and I’m a frequent flyer. No great snack options were available. Drink selection was limited to wine and beer. On a long flight, you need a variety of food which was unfortunately not available. The seats were just OK and the foot rest are not comfortable.. Airline staff for courteous Audio and video section is extremely limited

Hostesses were very nice I am disappointed that I paid extra 900$for premium economy which wasn't much upgraded from regular economy, I have wasted my money on this trip 😫

The food was amazing good especially for evonoply. The seats were comfy more then usually..crew was very nice and helpful.

amazing and great food. everything was smooth from start to finished

love this boutique luxury airline. crew was nice and attentive. Lounge is too small , i think they should have more area for relaxing and lounging not just to sit and eat .. feels like a cafeteria more than a lounge. overall i enjoy it. food on the plane LAX to Teipei should inprove a bit. no flavor and more drinks pls

The overall experience with STARLUX was phenomenal. One of the best highlights for me was the smooth landing in LA(smoothest landing I’ve experienced ever) and the attentiveness of all your staff from check-in to boarding. Also, flight left and landed between airports on time. I highly recommend Starlux to my family and friends and I’m excited to fly with you again.

We are scare because almost missing the fligh from Seattle to San Diego ! Starlux not have enough members for servicing with wheel chairs? We almost left behind , so we must walking !?

We are on economy premium but they put us in economy seating? Asking why the fligh supports said : If you not happy you can claim for refund?

Great food on both legs and fast customer service from the stewardesses....

The food was great; the attendants were pleasant. Waiting to onboard felt stressful, as passengers who had connecting flights at SEA had to be verified again for two things before getting a real boarding pass: passport and carry-on luggage weight. The boarding pass issued by another airline (i.e., the first leg of my trip) did not count. The S terminal at SEA was barren, with lots of sensory overloads because every airline was repeatedly broadcasting long lists of names of passengers who had not gone through that verification process. The carry-on luggage weight check seemed futile to me. I saw a woman who opened her over-weight suitcase to move some items into her shoulder bag. She still boarded with two huge bags with her. I assume this check is an endeavor of ensuring fairness of the overhead bin space or optimizing fuel efficiency when gas price is through the roof, but I don't know if either goal is achieved. Nonetheless I respect the crew's dedication to the SOP.

Food tasted like the meat had freezer burn. Another thing all of our 4 check baggage was left somewhere and my oral medication for my diabetes was left in one of the lost luggage..most of the flight attendants did not know how to communicate in English.. the trip was a total nightmare

I put the review all together for the first review

The crew need to be more friendly it seem everything such a rush situation during dinner and breakfast. Smiles to the passenger go such a long way just the service from Seattle to Taipei, service from Taipei to Bangkok were great more pleasant the flight attendant from Thailand she was very nice, as far as entertainment were amazing , wiffi connection was incredible great, I will be able to charged my phone from Seattle to Taipei and from taipei to Bangkok I won’t be able to do so flight attendant told me that because I don’t have the original iPhone charger connection has nothing to do what type of charger I have so she said there is nothing she can do about it. Foods : from Seattle to Taipei were ok no flavor , from Taipei to Bangkok I have chicken teriyaki the rice is overcooked all the flavor stuck on the aluminum wraps , breakfast the congee was on point and delicious. Will I recommend anyone to fly with Eva air go for it so you can experience yourself for myself I won’t fly with them again I’m gonna stick with Singapore airlines instead.

I liked that they gave us a couple of meals and drinks but the meal was not good and not many options especially if we are seated in the back of the plane.

Never went. Got rescheduled with Phillipine Airlines to Bali, which was fine.

I am really satisfied with Eva Air and will definitely fly with them again.

Again on this leg the WiFi wouldn't work. The seats were comfortable with adequate cushion and space between seats for my legs. Very nice 3-hour flight.

The flight from SEA to Taipei was on a Boeing 787-10. Economy seats were unacceptably cramped and the seats themselves were old and lacking cushion. I'm only 5'3" and couldn't cross my legs as my knees were up against the seat in front of me! I could not get WiFi to work most of the time on both flights and crew were invisible except to serve meals. The onboard entertainment also did not work reliably and was very hard to hear through the provided earbuds. The Asian vegetarian meals were interesting. I hope they can provide a fully vegan option though these meals seemed to be already. I appreciate their providing these meals options for vegans. I don't think I'll fly a 787-10 if I can help it. It was the definition of a sardine can in Economy.

We really enjoyed our flight to Seattle. The food was great and service was attentive.

The crew are amazing. Very professional, polite, kind, and accommodating.

Flight attendants. Food, entertainment and most of all, be on time.

Delayed. Not a full flight and whole rows left open with the paid seating. Food was ok. My beef meal only had one cube of beef the rest carrot cubes. Entertainment on personal device but didn’t know about it until the flight was almost done.

We are glad to have used China Airlines for our trip. Continue the good service! Thank you!

The flat bed full lying position is not comfortable at all, this could be improved, it is at an awkward position which i dont have the same issues with other airlines business class.

The flight was uneventful and the crew was kind and professional. Really appreciate the option to order a vegan meal for the flight!

I love my Delta crew, they were so welcoming and helpful.

I absolutely loved my flight from Taipei to LAX. I was originally assigned to a different seat, however one of the stewardess noticed I was uncomfortable in my seat. She offered to move me to a more comfortable setting. Although she didn’t have to do what she did, I am more than grateful and thankful for her doing so. My longer flight felt much more comfortable, just by her taking notice. I really appreciate her.

Overall was a lovely experience. The crew were kind and courteous throughout the entire flight.

The entertainment they offer could use some games, and maybe they could add some cookies to the snack menu. And the automated messages are a bit repetitive. But it was comfortable temperature wise and the seats were comfortable. The crew is very polite and helpful

The entertainment is a bit limited, it would be better if they added some games to play besides the movies and tv shows. But the seats are comfortable and the crew is polite

This planes staff was top tier. Everything went great and had a great flight home.

Food was great. Staff was phenomenal. Seats were a bit hard and could use a lot more entertainment options as far as movies to choose from. WiFi was good. Overall great trip.

This was an overnight flight, and in the morning they did know coffee service. How you can throw passengers in a San Francisco airport at 5:40 a.m. in the morning and not giving them Coffee is a crime.

I was promised by United Airline (operated by ANA) that I will be seated together with my kids as I am the only adult flying with two minors. We did not get seats together in our 11 hours flight from LA to Tokyo. When asked at the gate, ANA representative said United Airline should have informed them that there is a parent flying with two minors. He said they can’t do anything in the system as the flight is full. He ask me to ask passengers next to me and the kids if they are willing to change seats. This is ridiculous! However, I went in the flight and asked other passages but no one willing to change seats. 11 hours and we were seating separately. I was very disappointed with this. It made things super inconvenient for me.

Our flight was delayed several Times due to mechanical issues. Although I understand this may happen at times, it was very inconvenient and we had to book a hotel for an overnight stay. We were traveling with my 3-yo grandson and waiting at the airport from noon until 6:30pm with no reassurance that our next rescheduled flight would depart, we had to decide what’s best for him. A day later, I found out that I may be able to demand compensation if my flight is delayed more than 4 hours. I will hav to read the fine print next time.

Flight cancelled instead of leaving Friday am now, maybe, leaving Sunday

The pilot had to extend the flight time from san antonio to Houston to burn off fuel. This caused a lot of unnecessary stress since we had a tight connection to Aruba. And with no other flights going to Aruba we were worried about spending a night in Houston. We had to to run to our connection because of the flight crews mistake. Not happy.

Service was professional and quick. Premium economy seat was comfortable given the class

Flight was overbooked and seats assigned to multiple passengers. Delay 1 hour to sort out.

Good but I don’t received my bags yet is been 5days still no update

It was pretty straight forward, no glitches or hidden costs

It was a short flight so, everything went smoothly and we got to where we needed to be safely.

Didn’t make it on the flight. Delayed then had to be rebooked, which in turn had me waiting at the airport for another 8 hours before next flight

No TV on the flight. The charging outlet was not working. No food, even a sandwich. The served orange was poor quality.

Selected seats 5 months prior to date. Had email confirmation and seats were not honoured. Family did not sit together

Loved and was pleasantly surprised by the food!! Request Lufthansa to help transiting passengers at Munich (confusion whether to go thru passport control or not).

The flight was comfortable and the staff were helpful and friendly. However, we did not know we were flying PAL until we arrived in Canada, so it was a bit disconcerting. In addition, which port we were leaving from was confusing.

They did not let us board because one member needed a transit visa, which was not evident at the time of ticket purchase.

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

Information on your arrival and departure airports