United States · live one-way and roundtrip prices
Bangkok to Seattle flight deals
🏙️City
- Lowest fare
- ฿16,566 Aug 28
- Roundtrip from
- ฿32,342
- Typical roundtrip
- ฿38,954
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. 196 one-way fares from ฿16,566 · 409 roundtrips from ฿32,342.
- One way from
- ฿16,566
- 196 outbound-only options
- Roundtrip from
- ฿32,342
- 409 complete trips
- Typical roundtrip
- ฿38,954
- Half cost less, half cost more
- Flight options
- 409
- Roundtrips available
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Best Deals
Departure monthAugust 2026
Seattle
Weather20°MildTypical one way฿19,496Cheapest one-way fare฿16,566฿19,496−15%Aug 28Save ฿2,930
Departure month
August 2026
Seattle
Weather20°Mild
Typical one way฿19,496
Cheapest one-way fare฿16,566
฿19,496−15%
Aug 28Save ฿2,930
Departure monthNovember 2026
Seattle
Weather7°ColdTypical one way฿19,496Cheapest one-way fare฿16,566฿19,496−15%Nov 6Save ฿2,930
Departure month
November 2026
Seattle
Weather7°Cold
Typical one way฿19,496
Cheapest one-way fare฿16,566
฿19,496−15%
Nov 6Save ฿2,930
Departure monthOctober 2026
Seattle
Weather12°MildTypical one way฿19,496Cheapest one-way fare฿16,566฿19,496−15%Oct 16Save ฿2,930
Departure month
October 2026
Seattle
Weather12°Mild
Typical one way฿19,496
Cheapest one-way fare฿16,566
฿19,496−15%
Oct 16Save ฿2,930
Departure monthSeptember 2026
Seattle
Weather17°MildTypical one way฿19,496Cheapest one-way fare฿16,566฿19,496−15%Sep 21Save ฿2,930
Departure month
September 2026
Seattle
Weather17°Mild
Typical one way฿19,496
Cheapest one-way fare฿16,566
฿19,496−15%
Sep 21Save ฿2,930
Departure monthDecember 2026
Seattle
Weather5°ColdTypical one way฿19,496Cheapest one-way fare฿16,694฿19,496−14%Dec 14Save ฿2,802
Departure month
December 2026
Seattle
Weather5°Cold
Typical one way฿19,496
Cheapest one-way fare฿16,694
฿19,496−14%
Dec 14Save ฿2,802
Departure monthJanuary 2027
Seattle
Weather5°ColdTypical one way฿19,496Cheapest one-way fare฿16,694฿19,496−14%Jan 25Save ฿2,802
Departure month
January 2027
Seattle
Weather5°Cold
Typical one way฿19,496
Cheapest one-way fare฿16,694
฿19,496−14%
Jan 25Save ฿2,802
Departure monthFebruary 2027
Seattle
Weather6°ColdTypical one way฿19,496Cheapest one-way fare฿16,848฿19,496−14%Feb 5Save ฿2,648
Departure month
February 2027
Seattle
Weather6°Cold
Typical one way฿19,496
Cheapest one-way fare฿16,848
฿19,496−14%
Feb 5Save ฿2,648
Departure monthJuly 2026
Seattle
Weather20°MildTypical one way฿19,496Cheapest one-way fare฿31,920Jul 27
Departure month
July 2026
Seattle
Weather20°Mild
Typical one way฿19,496
Cheapest one-way fare฿31,920
Jul 27
Plan with confidence
Find the trip that fits
Compare prices, dates, airlines and travel time. Then choose the deal that feels right.
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฿34,754
Typical฿38,954
Typical high฿40,730
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 | ฿34,754–฿40,730 | 409 | 0% |
| 2Starlux Airlines | ฿32,683 | ฿32,855–฿40,463 | 99 | 0% |
| 3Korean Air | ฿34,754 | ฿34,754–฿36,551 | 15 | — |
| 4Alaska Airlines | ฿34,754 | ฿35,832–฿37,808 | 64 | 0% |
| 5Thai Airways | ฿40,179 | ฿40,179–฿40,359 | 14 | — |
| 6Asiana Airlines | ฿43,320 | ฿43,505–฿43,685 | 46 | 0% |
| 7Air Canada | ฿46,344 | ฿46,523–฿46,523 | 10 | — |
| 8EVA Air | ฿47,048 | ฿47,228–฿47,350 | 16 | — |
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
- 15h 5m
- Typical stay
- 11 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.
More ways to explore Seattle
🇺🇸
More flights to United States
🗺️Explore northern america
✈️China Airlines to SeattleFrom ฿32,342
✈️Starlux Airlines to SeattleFrom ฿32,683
✈️Alaska Airlines to SeattleFrom ฿34,754
✈️Korean Air to SeattleFrom ฿34,754
✈️Thai Airways to SeattleFrom ฿40,179
✈️Asiana Airlines to SeattleFrom ฿43,320
✈️Air Canada to SeattleFrom ฿46,344
✈️EVA Air to SeattleFrom ฿47,048
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 ฿38,954. Many available options sit between ฿34,754 and ฿40,730.
How many choices are available for Seattle?
Choose from 409 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?
Prices vary throughout the year. Use the month filter on this page to find the cheapest time to fly from Bangkok to Seattle.
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.