Portland to Bangkok flights

Routavio compares airline fares from several flight booking sites. The lowest one-way fare it found for Portland to Bangkok is €369 with Alaska Airlines (checked on 25 Oct 2026).

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Lowest observed

€369

Average observed

€506

Cheapest month

January 2027

Last checked

1 Nov 2026

Observed fares. Prices may change.

Your next trip, last seen at €369

Lowest observed

16 Jan 2027

Alaska Airlines · 2 stops · One way

Cheapest observed day · Last checked: 25 Oct 2026

Departure

10:59

When to fly

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The lowest fare we observed for each month. Open a month to see its days, then pick your outbound and return. A day with no price is one we will search for you.

One-way fare

One-way fare · No data: click and we will search

Lowest observed: €369, departing 16 Jan 2027 (Last checked: 25 Oct 2026)One-way fareCheck live prices for this route
Round trip: €497, departing 31 Mar 2027, back 14 Apr 2027 (Last checked: 1 Nov 2026)
Airlines seen: Air Canada, Air Premia, Alaska Airlines, ANA, Cathay Pacific, China Eastern, Emirates, Frontier Airlines, KLM, Korean Air, Singapore Airlines (11)
Typical journey time: 20h 20m

Short answer

Routavio has seen Alaska Airlines fares from Portland to Bangkok. The lowest fare Routavio's own searches returned is €369, seen on 25 Oct 2026. The average across the fares we caught is €506. January 2027 is the cheapest month in our observations, at €369. These are prices Routavio's searches returned on the dates shown, not quotes; run a live search for today's fare. Cheapest round trip: €497, departing 31 Mar 2027, back 14 Apr 2027 (checked 1 Nov 2026).

Portland → BangkokSat 16 Jan 2027 · €369Last checked: 25 Oct 2026

About this route

Explore the fares we observed from Portland to Bangkok. Prices move often, so pick your dates to see the latest options.

Route distance: 12,129 km
Typical journey time: 20h 20m
Seen on fares with a connection: Air Canada, Alaska Airlines, Korean Air, Cathay Pacific, Frontier Airlines, KLM, China Eastern, ANA (8)
Alternative airports: DMK

Route-level information; individual journeys vary.
We have not observed non-stop service on this route; the fares shown include at least one stop.

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Observed, not guaranteed

Every price is a fare we actually saw, and it may change at any time.

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How our prices work

Price alert

Price alert for Portland → Bangkok

If the observed fare for this date drops, we will email you. At most one message a day.

Airport to city: straight-line distance

Portland International Airport (PDX) → Portland, city gazetteer reference point (45.5051, -122.6750): ≈ 11 km.
Don Mueang International Airport (DMK) → Bangkok, city gazetteer reference point (13.7563, 100.5018): ≈ 21 km.
Suvarnabhumi Airport (BKK) → Bangkok, city gazetteer reference point (13.7563, 100.5018): ≈ 28 km.

Approximate distances calculated from coordinates, not road distances or travel times. These airports serve the city; they are not confirmed endpoints of an offer.

Lowest one-way fare we saw per airline

Cheapest airline from Portland to Bangkok: Alaska Airlines, from €369 (checked 25 Oct 2026).

Lowest one-way fare we saw per airline
Airline	Lowest fare	Priced days
Alaska Airlines	€369Jan 16, 2027	14
Frontier Airlines	€462Jan 19, 2027	3
Korean Air	€462Jan 12, 2027	4
Air Canada	€874Dec 1, 2026	51
KLM	€1,233Nov 30, 2026	3

One-way fares checked in the last 14 days. An airline listed here had a fare on at least 3 departure days. Each figure is the lowest we saw, not a guaranteed fare. Connecting itineraries are included; the date is the departure day of that fare.

Frequently asked

How much is a flight from Portland to Bangkok?

The lowest fare Routavio has observed is €369, found on 25 Oct 2026. Prices move, so read it as a floor rather than a quote.

When is the cheapest month to fly from Portland to Bangkok?

In our observations January 2027 is the cheapest month so far, at €369.

Are there direct flights from Portland to Bangkok?

Our data holds no non-stop flight from Portland to Bangkok. The fares on this page include at least one stop.

Which airlines fly from Portland to Bangkok?

Routavio has seen these carriers on the route: Air Canada, Air Premia, Alaska Airlines, ANA, Cathay Pacific, China Eastern, Emirates, Frontier Airlines, KLM, Korean Air, Singapore Airlines (11).

How long does the flight from Portland to Bangkok take?

Across the 13 fares Routavio observed, the average journey time is 37h 24m, including any stops. Individual departures vary; the fastest observed flight is listed in the route facts above.

How many of the observed Portland to Bangkok fares were non-stop?

None of the 14 fares we observed was non-stop; every one included at least one stop. That describes our observations, not every flight that operates.

How much is a round trip from Portland to Bangkok?

Cheapest round trip: €497, departing 31 Mar 2027, back 14 Apr 2027 (checked 1 Nov 2026).

Which airline has the lowest fare from Portland to Bangkok?

Cheapest airline from Portland to Bangkok: Alaska Airlines, from €369 (checked 25 Oct 2026).

How observed prices work, what "No data" means and what a fare includes: Read the flight price guide · Price and schedule freshness on Routavio