Typical price difference
-16%฿32,855 here compared with ฿38,954
One-way and roundtrip flights from Bangkok17°Mild
Flights to Seattle in September 2026
🏙️City
DepartureTue, Sep 15± 15 days
- Lowest fare
- ฿16,566 Aug 31
- Roundtrip from
- ฿32,342
- Typical roundtrip
- ฿32,855
Top deals
Flights and prices
Seattle: prices, dates and useful details
Planning a trip to Seattle? Compare dates, airlines, flight times and direct options from Bangkok. 30 one-way fares from ฿16,566 · 60 roundtrips from ฿32,342. These results are for september 2026.
- One way from
- ฿16,566
- 30 outbound-only options
- Roundtrip from
- ฿32,342
- 60 complete trips
- Typical roundtrip
- ฿32,855
- Half cost less, half cost more
- Flight options
- 60
- Roundtrips available
Saved searches
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Daily prices to Seattle15 days around September 15, 2026
AvgMinp25–p75
Cheapest
฿16,566
Aug 31
Global average
฿19,496
All travel dates
September avg
฿17,303
Selected month
Sort bySort by
Best Deals
Trip datesFlight itineraryTotal fareView
mon · Aug 31One way
Departuremon · Aug 31
One way2026
13:10BKK → SEA16:3515h 15m · 1 stop
2h 10m layover Taipei
Outbound13:10BKK16:35SEA15h 15m1 stop · via Taipei
Operated by
Starlux Airlines
Starlux Airlines฿16,566
฿19,496-15%
฿2,930 below average
Starlux AirlinesOne-way fare฿16,566฿19,496−15%Save ฿2,930View deal
Cheapest in the next 365 days
mon · Sep 21One way
Departuremon · Sep 21
One way2026
13:10BKK → SEA16:1014h 50m · 1 stop
2h 10m layover Taipei
Outbound13:10BKK16:10SEA14h 50m1 stop · via Taipei
Operated byStarlux Airlines
Starlux Airlines฿16,566
฿19,496-15%
฿2,930 below average
Starlux AirlinesOne-way fare฿16,566฿19,496−15%Save ฿2,930View deal
Cheapest in the next 365 days
mon · Sep 7One way
Departuremon · Sep 7
One way2026
13:10BKK → SEA16:1014h 50m · 1 stop
2h 10m layover Taipei
Outbound13:10BKK16:10SEA14h 50m1 stop · via Taipei
Operated byStarlux Airlines
Starlux Airlines฿16,566
฿19,496-15%
฿2,930 below average
Starlux AirlinesOne-way fare฿16,566฿19,496−15%Save ฿2,930View deal
Cheapest in the next 365 days
sat · Sep 12One way
Departuresat · Sep 12
One way2026
13:10BKK → SEA16:1014h 50m · 1 stop
2h 10m layover Taipei
Outbound13:10BKK16:10SEA14h 50m1 stop · via Taipei
Operated byStarlux Airlines
Starlux Airlines฿16,566
฿19,496-15%
฿2,930 below average
Starlux AirlinesOne-way fare฿16,566฿19,496−15%Save ฿2,930View deal
Cheapest in the next 365 days
sun · Sep 13One way
Departuresun · Sep 13
One way2026
13:10BKK → SEA16:1014h 50m · 1 stop
2h 10m layover Taipei
Outbound13:10BKK16:10SEA14h 50m1 stop · via Taipei
Operated byStarlux Airlines
Starlux Airlines฿16,566
฿19,496-15%
฿2,930 below average
Starlux AirlinesOne-way fare฿16,566฿19,496−15%Save ฿2,930View deal
Cheapest in the next 365 days
tue · Sep 15One way
Departuretue · Sep 15
One way2026
13:10BKK → SEA16:1014h 50m · 1 stop
2h 10m layover Taipei
Outbound13:10BKK16:10SEA14h 50m1 stop · via Taipei
Operated byStarlux Airlines
Starlux Airlines฿16,566
฿19,496-15%
฿2,930 below average
Starlux AirlinesOne-way fare฿16,566฿19,496−15%Save ฿2,930View deal
Cheapest in the next 365 days
wed · Sep 9One way
Departurewed · Sep 9
One way2026
13:10BKK → SEA16:1014h 50m · 1 stop
2h 10m layover Taipei
Outbound13:10BKK16:10SEA14h 50m1 stop · via Taipei
Operated byStarlux Airlines
Starlux Airlines฿16,566
฿19,496-15%
฿2,930 below average
Starlux AirlinesOne-way fare฿16,566฿19,496−15%Save ฿2,930View deal
Cheapest in the next 365 days
mon · Sep 14One way
Departuremon · Sep 14
One way2026
17:30BKK → SEA19:4514h 50m · 1 stop
1h 25m layover Taipei
Outbound17:30BKK19:45SEA14h 50m1 stop · via Taipei
Operated by
China Airlines
China Airlines฿16,694
฿19,496-14%
฿2,802 below average
China AirlinesOne-way fare฿16,694฿19,496−14%Save ฿2,802View deal
Cheapest in the next 365 days
9 seats leftsat · Sep 19One way
Departuresat · Sep 19
One way2026
17:30BKK → SEA19:1514h 20m · 1 stop
1h 25m layover Taipei
Outbound17:30BKK19:15SEA14h 20m1 stop · via Taipei
Operated byChina Airlines
China Airlines฿16,694
฿19,496-14%
฿2,802 below average
China AirlinesOne-way fare฿16,694฿19,496−14%Save ฿2,802View deal
Cheapest in the next 365 days
7 seats leftsat · Sep 26One way
Departuresat · Sep 26
One way2026
17:30BKK → SEA19:1514h 20m · 1 stop
1h 25m layover Taipei
Outbound17:30BKK19:15SEA14h 20m1 stop · via Taipei
Operated byChina Airlines
China Airlines฿16,694
฿19,496-14%
฿2,802 below average
China AirlinesOne-way fare฿16,694฿19,496−14%Save ฿2,802View deal
Cheapest in the next 365 days
9 seats leftsat · Sep 5One way
Departuresat · Sep 5
One way2026
17:30BKK → SEA19:4514h 50m · 1 stop
1h 25m layover Taipei
Outbound17:30BKK19:45SEA14h 50m1 stop · via Taipei
Operated byChina Airlines
China Airlines฿16,694
฿19,496-14%
฿2,802 below average
China AirlinesOne-way fare฿16,694฿19,496−14%Save ฿2,802View deal
Cheapest in the next 365 days
9 seats leftsun · Sep 27One way
Departuresun · Sep 27
One way2026
17:30BKK → SEA19:1514h 20m · 1 stop
1h 25m layover Taipei
Outbound17:30BKK19:15SEA14h 20m1 stop · via Taipei
Operated byChina Airlines
China Airlines฿16,694
฿19,496-14%
฿2,802 below average
China AirlinesOne-way fare฿16,694฿19,496−14%Save ฿2,802View deal
Cheapest in the next 365 days
9 seats leftsun · Sep 6One way
Departuresun · Sep 6
One way2026
17:30BKK → SEA19:4514h 50m · 1 stop
1h 25m layover Taipei
Outbound17:30BKK19:45SEA14h 50m1 stop · via Taipei
Operated byChina Airlines
China Airlines฿16,694
฿19,496-14%
฿2,802 below average
China AirlinesOne-way fare฿16,694฿19,496−14%Save ฿2,802View deal
Cheapest in the next 365 days
1 seat leftthu · Sep 10One way
Departurethu · Sep 10
One way2026
17:30BKK → SEA19:4514h 50m · 1 stop
1h 25m layover Taipei
Outbound17:30BKK19:45SEA14h 50m1 stop · via Taipei
Operated byChina Airlines
China Airlines฿16,694
฿19,496-14%
฿2,802 below average
China AirlinesOne-way fare฿16,694฿19,496−14%Save ฿2,802View deal
Cheapest in the next 365 days
7 seats leftthu · Sep 17One way
Departurethu · Sep 17
One way2026
17:30BKK → SEA19:1514h 20m · 1 stop
1h 25m layover Taipei
Outbound17:30BKK19:15SEA14h 20m1 stop · via Taipei
Operated byChina Airlines
China Airlines฿16,694
฿19,496-14%
฿2,802 below average
China AirlinesOne-way fare฿16,694฿19,496−14%Save ฿2,802View deal
Cheapest in the next 365 days
9 seats leftthu · Sep 24One way
Departurethu · Sep 24
One way2026
17:30BKK → SEA19:1514h 20m · 1 stop
1h 25m layover Taipei
Outbound17:30BKK19:15SEA14h 20m1 stop · via Taipei
Operated byChina Airlines
China Airlines฿16,694
฿19,496-14%
฿2,802 below average
China AirlinesOne-way fare฿16,694฿19,496−14%Save ฿2,802View deal
Cheapest in the next 365 days
7 seats lefttue · Sep 22One way
Departuretue · Sep 22
One way2026
17:30BKK → SEA19:1514h 20m · 1 stop
1h 25m layover Taipei
Outbound17:30BKK19:15SEA14h 20m1 stop · via Taipei
Operated byChina Airlines
China Airlines฿16,694
฿19,496-14%
฿2,802 below average
China AirlinesOne-way fare฿16,694฿19,496−14%Save ฿2,802View deal
Cheapest in the next 365 days
9 seats lefttue · Sep 29One way
Departuretue · Sep 29
One way2026
17:30BKK → SEA19:1514h 20m · 1 stop
1h 25m layover Taipei
Outbound17:30BKK19:15SEA14h 20m1 stop · via Taipei
Operated byChina Airlines
China Airlines฿16,694
฿19,496-14%
฿2,802 below average
China AirlinesOne-way fare฿16,694฿19,496−14%Save ฿2,802View deal
Cheapest in the next 365 days
8 seats lefttue · Sep 8One way
Departuretue · Sep 8
One way2026
17:30BKK → SEA19:4514h 50m · 1 stop
1h 25m layover Taipei
Outbound17:30BKK19:45SEA14h 50m1 stop · via Taipei
Operated byChina Airlines
China Airlines฿16,694
฿19,496-14%
฿2,802 below average
China AirlinesOne-way fare฿16,694฿19,496−14%Save ฿2,802View deal
Cheapest in the next 365 days
9 seats leftthu · Sep 3One way
Departurethu · Sep 3
One way2026
13:10BKK → SEA16:1014h 50m · 1 stop
2h 10m layover Taipei
Outbound13:10BKK16:10SEA14h 50m1 stop · via Taipei
Operated byStarlux Airlines
Starlux Airlines฿16,736
฿19,496-14%
฿2,760 below average
Starlux AirlinesOne-way fare฿16,736฿19,496−14%Save ฿2,760View deal
Lowest 10% in next 365 days
Plan with confidence
Find the trip that fits
Compare prices, dates, airlines and travel time. Then choose the deal that feels right.
See the difference
September 2026 at a glance
Compare price, non-stop choice and travel time with other Seattle options.
Non-stop options
0%+0 points compared with other flights
Typical flight time
14h 50m0h 15m shorter than the comparison
Roundtrip options
60Trips ready to compare
Typical prices
What do Seattle roundtrips usually cost?
This distribution uses roundtrip prices only; one-way prices remain in their own labeled summary.
Lowest฿32,342
Typical low฿32,342
Typical฿32,855
Typical high฿35,447
Flexible timing
Compare Seattle by travel month
Open a month to compare its dates, prices and available flights.
Airline comparison
Which airlines show the lowest Seattle fares?
Some trips combine airlines, so check both flights before you book.
| Comparison | Lowest | Typical range | Results | Non-stop |
|---|---|---|---|---|
| 1China Airlines | ฿32,342 | ฿32,342–฿35,447 | 60 | 0% |
| 2Starlux Airlines | ฿32,683 | ฿32,855–฿32,855 | 13 | — |
| 3Alaska Airlines | ฿34,754 | ฿34,754–฿36,551 | 15 | — |
| 4Korean Air | ฿34,754 | ฿34,754–฿36,551 | 15 | — |
Weather through the year
Typical temperatures in Seattle
Usual monthly temperatures can help you choose when to go. They are not a live forecast.
5°Jan
6°Feb
8°Mar
11°Apr
14°May
17°Jun
20°Jul
20°Aug
17°Sep
12°Oct
7°Nov
5°Dec
Useful trip facts
What to know about Seattle
- Country
- United States
- Arrival code
- SEA
- Typical annual temperature
- 11°C
- Trip styles
- City
- Typical outbound from Bangkok
- 14h 50m
- Typical stay
- 6 nights
Usual temperature, not a forecast
Why go
Why travelers consider Seattle
Emerald City of the Pacific Northwest. Coffee culture, tech innovation, and stunning natural beauty between Puget Sound and the Cascade Mountains.
Explore related searches
Common questions about Seattle
What is the lowest available one-way fare for Seattle?
The lowest available one-way fare is ฿16,566. It is compared only with other one-way fares.
What is the lowest available roundtrip fare for Seattle?
The lowest available roundtrip fare is ฿32,342. Check the dates, baggage and final total before booking.
What is a typical fare for Seattle?
A typical fare is ฿32,855. Many available options sit between ฿32,342 and ฿35,447.
How many choices are available for Seattle?
Choose from 60 roundtrip flights across 1 destination in 1 country.
Are direct flights available for Seattle?
0 roundtrip flights are non-stop both ways. That is 0% of the current choices.
Which month has the lowest fares for Seattle?
Sep 2026 has the lowest available roundtrip fare, from ฿32,342.
When is the best time to fly from Bangkok to Seattle?
Based on current prices, September 2026 offers some of the best deals from Bangkok to Seattle. Check the month-by-month breakdown on this page for the cheapest times to fly.
Are there direct flights from Bangkok to Seattle?
Availability of direct flights depends on the season and airline. Use the "Direct" filter on our search page to find non-stop flights from Bangkok to Seattle.