$462 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 9/15. 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

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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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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, Oct 28 - Thu, Nov 13
Singapore Airlines Logo
6:00 am - 8:00 pmPDX-BKK
24h 00m2 stops
Singapore Airlines Logo
9:10 pm - 10:32 amBKK-PDX
28h 22m2 stops
$806Singapore Airlines
Find Deal
Tue, Oct 28 - Thu, Nov 13
Singapore Airlines Logo
6:00 am - 8:00 pmPDX-BKK
24h 00m2 stops
Singapore Airlines Logo
9:10 pm - 10:32 amBKK-PDX
28h 22m2 stops
$820Singapore Airlines
Find Deal
Wed, Aug 6 - Tue, Sep 9
STARLUX Airlines Logo
8:59 pm - 4:40 pmPDX-BKK
29h 41m2 stops
STARLUX Airlines Logo
1:10 pm - 7:10 pmBKK-PDX
20h 00m2 stops
$831STARLUX Airlines
Find Deal
Tue, Nov 4 - Tue, Nov 18
China Airlines Logo
1:30 pm - 1:05 pmPDX-BKK
32h 35m2 stops
China Airlines Logo
5:50 pm - 6:17 amBKK-PDX
27h 27m2 stops
$838China Airlines
Find Deal
Sun, Nov 23 - Sun, Dec 7
STARLUX Airlines Logo
7:45 pm - 4:30 pmPDX-BKK
29h 45m2 stops
STARLUX Airlines Logo
1:45 pm - 10:26 pmBKK-PDX
23h 41m2 stops
$855STARLUX Airlines
Find Deal
Wed, Aug 20 - Wed, Sep 17
Delta Logo
8:55 am - 11:25 pmPDX-BKK
24h 30m2 stops
Delta Logo
2:35 am - 11:52 pmBKK-PDX
35h 17m2 stops
$929Delta
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Tue, Nov 4 - Tue, Nov 18
United Airlines Logo
6:00 am - 10:50 amPDX-BKK
37h 50m3 stops
United Airlines Logo
7:10 am - 6:36 pmBKK-PDX
26h 26m2 stops
$936United Airlines
Find Deal
Mon, Dec 1 - Thu, Dec 11
United Airlines Logo
1:00 pm - 10:50 amPDX-BKK
30h 50m3 stops
United Airlines Logo
9:25 am - 10:40 pmBKK-PDX
28h 15m2 stops
$937United Airlines
Find Deal
Wed, Nov 12 - Mon, Nov 17
Delta Logo
5:45 pm - 12:45 amPDX-BKK
40h 00m2 stops
Delta Logo
1:00 am - 4:31 pmBKK-PDX
30h 31m2 stops
$962Delta
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Tue, Jul 22 - Wed, Jul 30
ANA Logo
10:05 am - 6:00 amPDX-BKK
29h 55m2 stops
ANA Logo
9:35 pm - 6:46 pmBKK-PDX
35h 11m2 stops
$982ANA
Find Deal
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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.

Find cheap flights to Bangkok
Find cheap flights to Bangkok

Planning a trip from Portland to Bangkok? KAYAK’s data-powered insights will help you find cheap flights. Learn the best time to fly, how early to book your ticket, and other tips to secure great prices.

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

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

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

When flying from Portland to Bangkok, you should consider leaving on a Monday and avoid Fridays if you are looking for the best rates. For your return to Portland, you’ll find the best rates on Tuesdays and the most expensive ones on Fridays.

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 $962 (return) on average. On the other hand, the most expensive months are December and June, where the average cost of round-trip tickets is $1,629 and $1,509 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 4 weeks before departure. For the absolute cheapest price, our data suggests you should book 21 weeks before departure.

Good to know

Cheapest flight$462
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 3 days, the lowest price for a flight from Portland to Bangkok was $462 for a one-way ticket and $806 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, Star Alliance, and SkyTeam are the airline alliances operating flights between Portland and Bangkok, with Star Alliance being the most commonly used for this route.

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

    Vancouver 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.
9.0
STARLUX AirlinesOverall score based on 187 reviews
9.3Crew
9.0Boarding
8.8Food
9.0Entertainment
9.0Comfort
Airline reviews

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.

2.0 MediocreAnonymous, Jun 2025SFO - TPE
Read more STARLUX Airlines reviews

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.

Greetings when you arrive on the plane and good bye when you leave. Very attentive flight attendants.

Serve me a meal, I fell asleep during the flight. So they passed me twice.

Seats are not table comfortable. Crew members are pretty good. Can be much better!!

Very pleasant overall, although the movie selection could have been better.

Very pleasant experience overall, while the main course of the meal could have been better and the movies could have been more recent and with more variety.

I usually have ear problems when planes land. But the landing was so smooth I didn’t even notice it landing! The service was excellent!

the aircraft was fine and new. The crews can have better training. Their operations are not as smooth as EVA's. They are VERY stingy with drinking water. Throughout the entire flight, no one offered me any water and snacks. I still prefer EVA after trying out Starlux initially with lots of excitement and expectations.

Everything was smooth and professional. They could improve the raw vegan meal with fresher offerings, but otherwise they are now my favorite way to fly to Asia.

Leg space is small. Need more room for long flight.

ANA gave me an amazing experience. They are very good with customer service.

Everything was good may improve some alcohol drinks and amenities during fly

The crew was amazing, really friendly and efficient. One of the best flights I have ever been on. They made the long flight comfortable and I noticed there were two birthdays on the flight. They gave to customers birthday cards and wished them a happy birthday. That was very nice to see.

Everything was great. Wifi was down,but that didn't matter to me.

Hard to explain because we thought we were booking ANA airlines, not ANA operated via United, so we were disappointed, but for what it’s worth, everything went smooth and loved the movie selections. The food was okay, processed and full of preservatives, so vs what we were expecting with ANA it was different

The best best best flight experience I have ever had. And I fly A LOT. THANK YOU, ANA!!!

My wife and I liked everything except the cold breakfast

The overall experience was ok, though there was certainly room for improvement. My husband was asked to check his carry-on bag at the gate due to claims that the flight was “full.” However, upon boarding, we observed ample overhead space and several empty rows of seats. This made the request appear unnecessary and caused some discomfort, particularly as he was the only passenger singled out for this procedure.

When booking the flight i picked it because it said flying with ana even on our e-ticket as well but I showed up to the airport and I flew with united. I have flew with both airlines before and I prefer ana for the food quality and comfortable. So I was disappointed in that outcome and felt the food gave me minor ibs. The whole thing was missing leading with not getting what I thought I was paying for. Felt a bait and switched. Do not have confidence in using this app in the future trips

This was a large plane with an upper deck. It seems like business was upstairs. If it was a US airline then I would say I sat in economy plus, but I think it was just economy. Though since ANA would not allow me to choose seats for the price it may have been plus. Lots of movies to choose from, and good service.

We booked business class round trip from Delhi to San Diego and back. On our last leg from Bangalore to Delhi we were down graded to economy class which was big disappointment other than that everything was great.

Had an incident with a stewardess who insisted that I take a seat. I informed her that I came to use the restroom and to have some water. After using the restroom, I wanted to stretch my legs out a little cuz my knees were aching from sitting. I understood her concern for my concern and the potential turbulence (she said she knows this route and the turbulence and safety is not to be taken lightly) but I felt that her mood, tone, demeanor, and a lack of compassion for the pain in my knees were not the proper way to address a customer or anyone for that matter. This left a bitter taste in my mouth. It was her lack of professionalism that surprised me.

It was good but need mor amenities for toiletries and entertainment

This portion of the trip from HCMC to Dallas was operated by American Airline. Unfortunately they are 2 steps below JAL in overall quality. Regardless, AAStill got me where I needed to go on time.

First experience with JAL so was okay to pretty good. 10 hour flight in premium select seat. . Seats in that category should be better than pretty good. Seat pan a little short for tall people but plenty of leg room; I think JAL in process of new planes? Also, — they could have offered a bit more water throughout flight and meals not the greatest. That said, certainly 200 percent better than a very recent AK Air International flight in similar cabin class in comfort and meals.

We ordered for non vegetarian Hindu meal but instead they served us vegetarian Hindu meal. That was also not good. It was very annoying and aggravating. Hope our return from Tokyo to jfk on March 27 same is not repeated. Caterar should understand difference between non vegetarian Hindu meal and vegetarian Hindu meal.

Food was great, Entertainment was bad, movies were not current and just did not have good variety. Granted I was tired so cranky might have played into my evaluation. Overall based on cost I definitely would fly them again. I am a million mile flyer on another airline, the service on JAL really beats all airlines.

Was in premium economy. It is slightly better than economy, but the way the seat reclines actually makes it harder to sit (the seat slides forward and the foot rest comes up - you can lie fairly well reclined but you’ll have to sit cross legged because there is no place for your legs to stretch out. Food is basic economy. Service was great. All in all good, but may make more sense to pay more for business or save a bit and just sit in economy.

Seats in "Premium Economy" were noticeably more comfortable than those in "Economy" and worth the price. My only reservation is that the foot rest did not go higher up. If it did, it would have made the seat much more comfortable.

Attentiveness by crew was very good. The seats were uncomfortable seemingly too hard with inefficient cushioning. This was verified with my traveling companions. Also the incline button was inoperable.

Although the flight was delayed the crew and the flight itself were very good. Couldn't fault anything and after the disappointment of being abandoned in the US by BA it was a welcome relief to travel with United

Survey sent before we actually left. Delay after delay. Now a crew problem.

I love flying with United. Unfortunately, I flew on an older plane with minimal upgraded technology (no Bluetooth functionality or handy charging ports). Otherwise, the flight was great and even arrived early.

They changed my seats after I checked in and I was stressed from the time I saw that information until just before boarding, when the gate attendant fixed it, but it shouldn't have happened. And if it couldn't be prevented, then the people on the phone I spoke with should have done something to help, which they did not, nor did they offer me compensation, just meaningless apologies.

online check in was not available so i had to get to airport extra early. The flight was delayed and my luggage was lost. I had an argument with the person behind me who wanted to keep her bag on the floor and not allow my seat to recline on a 9hr plus flight. So overall, lots and lots of areas for improvement.

Horrific. They missed my connecting flight to San Diego. I didn’t get there until Monday at 9am when I had a mandatory court settlement conference scheduled at 6am since we had parties on the east coast. This caused many issues. All because United apparently forgot to hold the doors open until my flight landed that only had a 10 minute delay. This was the last flight to Southern California. So I couldn’t even rent a car to finish the trip. United cannot be trusted when traveling on specific days and times since weather didn’t have anything to do with the delays.

My flight was delayed a very short period of time but they did not hold my connecting flight to San Diego, also through United. So they closed the doors before we got off our plane. They would only have to help the door open for another five to ten minutes. So I missed a court deadline for a manditory mediation settlement conference for my client. I had to get an associate to be there in person and be on the phone with him relaying what he needs to do the entire time. The court was very upset with me and so was my client. United cannot be trusted.

Very rough getting into denver. my kid threw up it was so rough.

We were given vouchers we couldn’t use with a 5.5 hour delay

Cramped seat even in economy plus seat 10A. Over booked flight, no space for the bags

Aircraft had technical issues. After 3 hours of trying to resolve, flight was cancelled. Was booked on a flight leaving 12 hours after intended departure. Now on 4 flights instead of 2 and a day late to my destination.

Abandoned me in hallway in a wheelchair… which I asked for because I sprained my back. After waiting in the hallway, I decided to walk the rest of the way since someone respecting me up.. My experience with the united was totally the opposite. Wheelchair access, propped swift and save me a lot of grief. Air Canada totally disorganized.

I am very tall. All airline seats are a bit uncomfortable.

Bad experience boarding and flight got delayed didn’t make it to my next flight

The food on the trip Toronto to Athens could be better: the chicken didn’t taste good.

Terrible confusion btw air Canada and United. Wasn’t able to change ticket because I had purchased on kayak. Rethinking booking tickets on this site, and will try to avoid United and aircanada going forward.

Conflicting information provided about baggage allowance. One screen said I had a carry on and another said I didnt.

The plane is too cramped! Zero leg room and when the person in front of me put their seat back they were basically laying in my lap.

Before final boarding, my husband and I — both seniors — were told that we could not bring our carry-on bags with us due to being in Zone 6. The staff took our bags with little explanation, stating it was policy. While we understand boarding procedures may vary by zone, the way we were spoken to was unnecessarily rude and dismissive. We felt disrespected and singled out, and the interaction left us deeply uncomfortable. As seniors, we expect to be treated with courtesy and dignity, especially during travel when accommodations and communication matter most. We hope you will look into this matter and ensure better training for staff in handling such situations with more empathy and professionalism.

They canceled my flight and then refused to reschedule me on another flight. I had to take a train. No compensation. I won't use Air Canada again.

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