PWM - BKK

$1,256 Find Cheap Flights from Portland to Bangkok

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from Portland to Bangkok departing on 3/15. 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, 0 bags

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, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Portland to Bangkok, as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
$1,256
United Airlines
Sun 3/15Sun 3/22
PWM - BKK • 3 stops
Cheapest one-way
Multiple Airlines
Sat 1/31
PWM - BKK • multi-stop
Start a new search
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We hope you love your trip to Bangkok!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Portland to Bangkok (PWM-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

Sun, Mar 15 - Sun, Mar 22
United Airlines Logo
6:00 am - 11:25 am
PWM
-
BKK
42h 25m
3 stops
United Airlines Logo
4:55 pm - 9:11 pm
BKK
-
PWM
39h 16m
3 stops
$1,256United Airlines
Sun, Mar 15 - Sun, Mar 22
United Airlines Logo
6:00 am - 11:25 am
PWM
-
BKK
42h 25m
3 stops
United Airlines Logo
9:10 am - 9:11 pm
BKK
-
PWM
23h 01m
2 stops
$3,960United Airlines
Booking Insights

Good to know

Low seasonNovember
Cheapest flight$1,256
Best time to beat the crowds with an average 19% drop in price.
Most popular time to fly and prices are also 19% lower on average.
Flight from Portland to Bangkok

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 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 $1,256 for a round-trip ticket.

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

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

  • 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?

    Star Alliance is the only airline alliance operating flights between Portland and 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. 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?

    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 airline flying 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.
7.4
United AirlinesOverall score based on 9219 reviews
7.7Boarding
7.3Comfort
8.1Crew
7.1Entertainment
6.6Food
Airline reviews

I was fully checked in the prior night and i was unchecked and then didn’t have a seat when I boarded. Instead of an aisle seat, I was out in the middle seat of the very last row of the plane.

2.0 MediocreJames, Jan 2026
ORD - MSP
Read more United Airlines reviews

I was fully checked in the prior night and i was unchecked and then didn’t have a seat when I boarded. Instead of an aisle seat, I was out in the middle seat of the very last row of the plane.

In overall it was a good experience, the only down point was that the entertainment screen was working properly.

HORRIBLE, my initial flight was cancelled, they made me pay $200 extra dollars and that got cancelled as well! After 6 cancellations I decided to get a refund because I needed to get home to my babies. Out of $1000+ dollars they offered me only $40 in refund! Totally unacceptable! The flight that they cancelled I was able to fly it on another airline. I had to spend $400 on one way tickets just to get home! I’m still getting the runaround.

First class ticket gets you a choice of chips or nuts. . Just like economy Southwest. Also no screen in the seats. This is first class???!

Seated dude next to me even though lots of empty rows. But main thing was we sat on the tarmac after landing for 30 minutes because of, in the words of the dude who sat next to me, “operational incompetence”. We got changing directions about where to pick up gate checked bags. Pilot and flight attendant were awesome though.

The food was terrible this time. Otherwise pleasant, quiet, on-time.

It was a pretty standard flight... until the almost hour and a half spent on the taxi way. I get that the weather has been poor but the delay had nothing to do with the weather and more to do with a plane with several issues tying up the gate. I get that that happens from time to time but this has been EVERY flight I've been on for the past 5 years and I fly 3 to 5 times a year. This isn't just United... it's American, it's Delta. It's an issue with the entire industry. I work for UPS and packages on a cargo plane get better service than people do these days. Anymore I HATE flying.

Flight arrived 30 min early and bag was waiting at the baggage pickup. United Club HNL was one of the nicest in the system

Unfortunately weather delayed our flight waiting for our plane to arrive and due to a little snow time was needed to deice the plane so departure was very delayed and I missed the connecting flight

Very good. Because of the delays with my previous flight, I missed my connection, but I was able to book another flight through the United app easily.

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

Information on your arrival and departure airports