Bangkok: Wat Arun temple on the Chao Phraya River at golden hour with a long-tail boat on the water (AI-generated image)

Your next Asia escape

Bangkok is calling.

Seattle (SEA) to Bangkok (BKK)

Round trip1 adult · EconomyFrom US$719.00

1 stop each way

Stay a little longer

Choose your escape

1 date option

Prices are in USD per person, round trip. Pick your dates and go straight to the flight search.

Our fare pick15 nights away

Singapore Airlines

Outbound

5 Mar 2027

SEA to BKK

1 stop · 19h 30m

Return

20 Mar 2027

BKK to SEA

1 stop · 16h 40m

Airports: SEA to BKK

Why this fare is worth a look

A recently found return fare with usable dates and duration. No special price claim is made.

Not enough FlyMeAsia history yet for a reliable route comparison.

Observed one-stop reference: 17h 55m outbound / 14h 10m return. This fare uses up to 1.176× the reference journey time.

Connection lengths and transfer arrangements are not provided by this source. Review them before booking.

Travel window: approximately four months ahead.

45h 10m total return journey · provider duration

US$719.00per person · round trip

See Fare

Cached price checked 1 Nov, 03:11 UTC

Indicative cached fares, subject to availability. We may earn a commission through partner links. How this works

Image: FlyMeAsia with ChatGPT · AI-generated image

Track this trip

From our own fare checks

Seattle to Bangkok prices we have seen

Our fare engine checked this route on 6 days between 21 Sept 2026 and 31 Oct 2026. For each set of dates and stops it keeps the lowest round-trip price: 11 fares in all.

Journey	Lowest	Typical	Highest	Flight time out / back	Fares
With one stop	US$719	US$822	US$941	19h 22m / 15h 15m	11

Typical is the median. Round trip, one adult, economy, stays of 5–21 nights, at most one stop each way. Flight time is the median journey time for each direction, including any connection.

Airlines we saw most often

Singapore Airlines, EVA Air, Korean Air, China Airlines.