Cheap Flights from Portland to Bangkok from $631

Frequently Asked Questions

• What are the cheapest flights from Portland to Bangkok (PDX-BKK)?

  Based on Trip.com data, United Airlines offers one-way fares as low as $631 on Cheapest nonstop routes (e.g. PDX to BKK on Mon, May 4), while Air Canada offers Cheapest nonstop round-trips from $1,321 departing on Thu, May 28 and returning on Tue, Jun 2.

• Which airlines offer direct flights from Portland to Bangkok?

  At the moment, you can catch a nonstop flight from Portland to Bangkok with the following airlines, including: Delta Air Lines Asiana Airlines Alaska Airlines Selected airlines are based on historical data collected from flight bookings users made on Trip.com within the last 90 days.

• When is the best time to book flights from Portland to Bangkok?

  By analyzing data from all airlines on the Trip.com flight calendar, it looks like the best time to book a flight from Portland to Bangkok is around 40 days (6 weeks) in advance, and the best time to fly is usually on Tuesday, Wednesday, and Saturday. Tuesday typically offers the cheapest flights for departure, while Saturday offers the best return deals.

• How can I find the best deals on flights from Portland to Bangkok?

  To find best deals on flights from Portland to Bangkok, you can use various tools on Trip.com:
  · Be flexible with your travel dates to get the cheapest flight deal. Now the cheapest flight deal is on Mon, May 4, with one-way flights priced at just $631.
  · Compare airlines strategically. Budget carriers often provide the lowest base fares, while we found the most affordable airline currently operating on this route is United Airlines.
  · Set up price alerts to easily monitor ticket prices without having to check every day.
  · Check Trip.com flight deals and promo codes frequently.
  · Avoid peak season unless you book very early. It seems the peak season for Bangkok travel is around July.
  · Get exclusive promo codes for Trip.com app users.

• When are flight tickets from Portland (PDX) to Bangkok (BKK) the cheapest?

  The cheapest months to fly from Portland to Bangkok is September, when demand for travel is lower.

• Which upcoming date is cheapest to fly from Portland to Bangkok on?

  After crunching the numbers on our April flight calendar, it's currently cheapest to fly from Portland to Bangkok on April 23, 2026 with KLM Royal Dutch Airlines, with prices starting at $1,798.

• Which airports can I fly to for Bangkok from Portland?

  You can land at any one of the following hubs in Bangkok, with Portland International Airport to Suvarnabhumi Airport (PDX-BKK) is by far the most common option on this route: Suvarnabhumi Airport (BKK) Don Mueang International Airport (DMK).

• Is there any time difference between Portland and Bangkok?

  The time difference between Bangkok and Portland is 15h.

• How do I change or cancel my ticket from Portland to Bangkok?

  Tickets can only be changed or canceled if permitted by airline policy. To submit a change or cancellation request, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and segment, and submit a request. Please note that additional charges may apply according to the airline ticket policy. However, if the flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For more details about change and cancellation policies, please check the customer support pages.