Cheap flights from Portland to Bangkok from $411
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Portland to Bangkok departing on 9/15. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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How to get the cheapest flight ticket from Portland to Bangkok
Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip
What is the cheapest month to fly to Bangkok?
If you aren’t able to travel during the month of September, then book flights to Bangkok from Portland during April instead. Flights to Bangkok in April, while not as cheap as those in September, still average around $988.
What is the cheapest day to depart on your flight to Bangkok?
On average, the least expensive day to fly to Bangkok from Portland is on a Monday. momondo users have found tickets for Monday departures for as low as $1,127. However, this price may fluctuate depending on the airline, the season, and holidays. Flights from Portland to Bangkok on a Friday will generally be more expensive and average around $1,440. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.
What is the cheapest time of day to depart on your flight to Bangkok?
According to our data, the cheapest time of day to fly to Bangkok is in the evening. momondo users have found flights departing from Portland to Bangkok in the evening for as low as $1,137. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Try not to purchase tickets at noon because they tend to be around $1,989. Of course, these prices can vary depending on the time of year and what airport you fly to.
How far in advance should I book a flight to Bangkok?
You are more likely to see cheaper flights to Bangkok from Portland when booking 21 weeks ahead of your departure date. In general, you can expect to find flights to Bangkok for around $1,138 when searching 21 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Bangkok from Portland for as low as $1,050 on momondo.
What is the cheapest airline that flies from Portland to Bangkok?
ANA, United Airlines, and Delta are the most popular carriers operating from Portland to Bangkok
What airlines fly to Bangkok?
Air Canada, STARLUX Airlines and Japan Airlines are the top three most popular airlines that fly to Bangkok from Portland according to our data. Air Canada is the first choice among our users, with 60% of people opting to fly with this airline when traveling to Bangkok. Keep in mind that there are 11 different airlines that fly to Bangkok on a routine basis, so you have a few additional options to choose from.
Cheap Portland to Bangkok flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Portland to Bangkok
How far is Portland to Bangkok by plane?
The distance between Portland and Bangkok is about 7529.0 mi. 20h 30m is a normal flight duration for this route.
When did momondo last update prices for flights from Portland Airport to Bangkok?
Prices for flights from Portland Airport to Bangkok are updated daily.
How many operators does momondo search for flights from Portland Airport to Bangkok?
As of June 2025, there are 11 operators available to choose from for flights from Portland Airport to Bangkok.
How old do you have to be to fly from Portland Airport to Bangkok?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Portland Airport to Bangkok.
What documentation or ID do you need to fly to Bangkok?
The travel and health documents required for your trip to Bangkok can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Bangkok. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
Best airlines flying from Portland to Bangkok
Compare and see reviews for airlines that fly from Portland to Bangkok with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $287 | Free Cancellation | Rating 8.0 7,950 reviews | |||
| PriceFrom $750 | Free Cancellation | Rating 7.2 150 reviews | |||
| PriceFrom $793 | Free Cancellation | Rating 8.3 882 reviews | |||
| PriceFrom $849 | Free Cancellation | Rating 8.4 1,088 reviews | |||
| PriceFrom $864 | Free Cancellation | Rating 7.4 3,584 reviews | |||
| PriceFrom $894 | Free Cancellation | Rating 9.1 177 reviews | |||
| PriceFrom $901 | Free Cancellation | Rating 8.1 1,302 reviews | |||
| PriceFrom $925 | Free Cancellation | Rating 8.3 1,489 reviews | |||
| PriceFrom $928 | Free Cancellation | Rating 7.1 9,531 reviews | |||
| PriceFrom $940 | Free Cancellation | Rating 7.4 8,790 reviews |
Why use momondo?
Why should I use momondo to find a flight deal from Portland to Bangkok?
momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Portland to Bangkok. momondo saves you time and could save you money on your trip.
Can I find flights from Portland to Bangkok with flexible booking policies on momondo?
All flight searches from Portland to Bangkok on momondo can be filtered to show those which offer flexible booking policies.
How can momondo help me find flights from Portland to Bangkok?
Once all potential Portland to Bangkok flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.
I’m not ready to book a flight from Portland to Bangkok right now. Can momondo alert me if prices change?
Of course. momondo tracks the price of Portland to Bangkok flights. All you need is a valid email address and we will do the rest; it is that quick and easy.