⚡ Fare recorded April 25, 2026 · Prices change daily

Seattle to Bangkok flights

Seattle (SEA) to Bangkok (BKK): 7,449 miles (11,988 km) great-circle, about 15h 25m nonstop by our estimate. Cheapest fare observed: $969 round-trip on Cathay Pacific, with 1 stop, departing April 27, 2026.

CXCathay PacificCX853
Depart
SEA
Seattle, USA
11:45
2026-04-27
✈
Arrive
BKK
Bangkok, Thailand
Returns 07:35
2026-05-04
Stops
1 stop
Distance
7,449 mi
Est. nonstop time
15h 25m
Trip type
Round-trip
$969
Round-trip · per person
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About this flight

When did the cheapest Seattle to Bangkok fare fly?

$969 round-trip, Cathay Pacific CX853, departing 2026-04-27 at 11:45, returning 2026-05-04. The recorded itinerary left on a Monday, returning on a Monday 7 nights later; the fare was observed 2 days before departure. "Book this flight" opens Kiwi.com with the same airline and dates.

Route facts

How far is Seattle from Bangkok?

  • Distance: 7,449 miles (11,988 km) great-circle, heading northwest.
  • Estimated nonstop flight time: about 15h 25m.
  • Departure airport: Seattle-Tacoma International Airport (SEA), Seattle, United States, UTC-7 on April 27, 2026.
  • Arrival: Suvarnabhumi Airport (BKK), Thailand, UTC+7 on April 27, 2026.
  • Time difference: Bangkok is 14 hours ahead of Seattle on the recorded date.
  • Route type: international, United States to Thailand.
  • Arrival airport elevation: 5 ft.
  • Recorded itinerary: Cathay Pacific CX853, 1 stop, round-trip, 7 days between departure and return.
Fare comparison

How does the Seattle to Bangkok fare compare with other routes from SEA?

At $969, it ranked 21st of the 30 round-trip fares we recorded from SEA (median $591). That is 13.0 cents per great-circle mile (round-trip price over one-way distance), below the SEA median of 19.2 cents across 30 round-trip routes.

Routes from SEA of similar length: Tashkent (6,267 mi) at $1551 and Banjul (6,249 mi) at $1554.

SEA to BKK is the only one of 30 SEA routes where Cathay Pacific priced cheapest. It is the 2nd longest of the 30 routes we track from SEA.

Other ways in

What did other cities pay to fly to Bangkok?

Of 59 departure airports with a fare to Bangkok, Seattle (SEA) ranked 50th at $969. Lowest: $73 from Phuket (HKT); highest: $1428 from Mexico City (MEX); 14 nonstop. Cheapest-fare airlines (routes): Air India (5), Etihad (5), Thai Vietjet Air (4), Air China (3), Scoot (3) and Thai AirAsia (3), plus 31 more.

Sources

Where do these numbers come from?

Travelpayouts fares (cheapest per route, observed April 25, 2026); OurAirports coordinates and elevations; IANA zones America/Los_Angeles, Asia/Bangkok; flight time is our estimate.

FAQ

Seattle to Bangkok flight questions

How far is Seattle from Bangkok by plane?

+
Seattle is about 7,449 miles (11,988 km) from Bangkok on a great-circle line from Seattle-Tacoma International Airport (SEA) to Suvarnabhumi Airport (BKK), heading northwest. It is the 2nd longest of the 30 routes we track from SEA. The recorded itinerary had 1 stop, so the distance flown was longer.

How long is the flight from Seattle to Bangkok?

+
About 15h 25m nonstop by our estimate for 7,449 miles (500 mph cruise plus 30 minutes, not a timetable). The recorded Cathay Pacific fare was with 1 stop. 59 airports in our feed had a fare to Bangkok; this one ranked 50th, and 14 of the 59 were nonstop.

What is the time difference between Seattle and Bangkok?

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On April 27, 2026, Seattle was on UTC-7 (America/Los_Angeles) and Bangkok on UTC+7 (Asia/Bangkok), so Bangkok was 14 hours ahead of Seattle: noon in Seattle was 02:00 the next day in Bangkok. Daylight saving changes it: in mid-January 2026 the gap is Bangkok 15 hours ahead, in mid-July Bangkok 14 hours ahead.

How much is a flight from Seattle to Bangkok?

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As observed on April 25, 2026: $969 per person round-trip on Cathay Pacific flight CX853, departing April 27, 2026, returning May 4, 2026, with 1 stop. At $969, it ranked 21st of the 30 round-trip fares we recorded from SEA (median $591). That is 13.0 cents per great-circle mile (round-trip price over one-way distance), below the SEA median of 19.2 cents across 30 round-trip routes. Prices change daily, so check the live fare.

Is there a nonstop flight from Seattle to Bangkok?

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The cheapest recorded fare had 1 stop; our feed keeps only the cheapest fare per route, so a pricier nonstop may exist. Into Bangkok, 14 of the 59 recorded fares were nonstop. From SEA, 9 of 30 were. Routes from SEA of similar length: Tashkent (6,267 mi) at $1551 and Banjul (6,249 mi) at $1554.

Which airports serve flights from Seattle to Bangkok?

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It departs Seattle-Tacoma International Airport (SEA) in Seattle, United States, and arrives at Suvarnabhumi Airport (BKK) in Bangkok, Thailand. An international flight, United States to Thailand. SEA to BKK is the only one of 30 SEA routes where Cathay Pacific priced cheapest.

Where else near Bangkok can you fly from Seattle?

Beijing (BJS) $904Seoul (SEL) $1127Tashkent (TAS) $1551Tokyo (TYO) $856Moscow (MOW) $1513Istanbul (IST) $1172All flights from Seattle →

Other cities with flights to Bangkok

From Phuket (HKT) $73From Shanghai (PVG) $161From Hanoi (HAN) $165From Ho Chi Minh City (SGN) $166From Guangzhou (CAN) $167From Kuala Lumpur (KUL) $184

Ready to fly?

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