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Cheap flights Seattle (Tacoma) to Bangkok (Suvarnabhumi)

1 passenger, economy

Cheap flights Seattle to Bangkok

Compare prices, duration and stops

United Airlines
UA 4729
19:05
Seattle, Tacoma (SEA)
Thu, 17 sep
31h 30min
1 stop
02:35
Bangkok, Suvarnabhumi (BKK)
Sat, 19 sep +1
577 S$
Korean Air
KE 042
19:50
Seattle, Tacoma (SEA)
Thu, 17 sep
18h 55min
1 stop
14:45
Bangkok, Suvarnabhumi (BKK)
Fri, 18 sep +1
535 S$
Korean Air
KE 042
19:50
Seattle, Tacoma (SEA)
Fri, 18 sep
34h 45min
1 stop
06:35
Bangkok, Suvarnabhumi (BKK)
Sun, 20 sep +1
535 S$
United Airlines
UA 4796
23:30
Seattle, Tacoma (SEA)
Fri, 18 sep
27h 5min
1 stop
02:35
Bangkok, Suvarnabhumi (BKK)
Sun, 20 sep +1
577 S$
Air Canada
AC 8803
17:50
Seattle, Tacoma (SEA)
Sat, 19 sep
28h 15min
1 stop
22:05
Bangkok, Suvarnabhumi (BKK)
Sun, 20 sep +1
570 S$
Air Canada
AC 8809
02:15
Seattle, Tacoma (SEA)
Mon, 21 sep
38h 20min
2 stops
16:35
Bangkok, Suvarnabhumi (BKK)
Tue, 22 sep +1
571 S$
Air Canada
AC 8801
12:50
Seattle, Tacoma (SEA)
Mon, 21 sep
27h 45min
2 stops
16:35
Bangkok, Suvarnabhumi (BKK)
Tue, 22 sep +1
571 S$
Air Canada
AC 8801
12:50
Seattle, Tacoma (SEA)
Tue, 22 sep
27h 45min
2 stops
16:35
Bangkok, Suvarnabhumi (BKK)
Wed, 23 sep +1
571 S$
Korean Air
KE 42
19:50
Seattle, Tacoma (SEA)
Tue, 29 sep
18h 55min
1 stop
14:45
Bangkok, Suvarnabhumi (BKK)
Wed, 30 sep +1
521 S$
Korean Air
KE 042
19:50
Seattle, Tacoma (SEA)
Sun, 4 oct
18h 55min
1 stop
14:45
Bangkok, Suvarnabhumi (BKK)
Mon, 5 oct +1
499 S$
Korean Air
KE 42
19:50
Seattle, Tacoma (SEA)
Sun, 4 oct
22h 15min
1 stop
18:05
Bangkok, Suvarnabhumi (BKK)
Mon, 5 oct +1
540 S$
Philippine Airlines
PR 125
06:10
Seattle, Tacoma (SEA)
Mon, 5 oct
23h
1 stop
05:10
Bangkok, Suvarnabhumi (BKK)
Tue, 6 oct +1
568 S$
China Airlines
CI 021
08:15
Seattle, Tacoma (SEA)
Mon, 5 oct
18h 30min
1 stop
02:45
Bangkok, Suvarnabhumi (BKK)
Tue, 6 oct +1
476 S$
Korean Air
KE 042
19:50
Seattle, Tacoma (SEA)
Mon, 5 oct
20h 45min
1 stop
16:35
Bangkok, Suvarnabhumi (BKK)
Tue, 6 oct +1
499 S$
Asiana Airlines
OZ 271
07:10
Seattle, Tacoma (SEA)
Tue, 6 oct
20h 30min
1 stop
03:40
Bangkok, Suvarnabhumi (BKK)
Wed, 7 oct +1
550 S$
Korean Air
KE 042
19:50
Seattle, Tacoma (SEA)
Tue, 6 oct
22h 15min
1 stop
18:05
Bangkok, Suvarnabhumi (BKK)
Wed, 7 oct +1
499 S$
Korean Air
KE 042
19:50
Seattle, Tacoma (SEA)
Wed, 7 oct
22h 15min
1 stop
18:05
Bangkok, Suvarnabhumi (BKK)
Thu, 8 oct +1
499 S$
Korean Air
KE 42
19:50
Seattle, Tacoma (SEA)
Tue, 20 oct
34h 45min
1 stop
06:35
Bangkok, Suvarnabhumi (BKK)
Thu, 22 oct +1
550 S$
Korean Air
KE 42
19:50
Seattle, Tacoma (SEA)
Wed, 21 oct
22h 15min
1 stop
18:05
Bangkok, Suvarnabhumi (BKK)
Thu, 22 oct +1
535 S$
Korean Air
KE 42
19:50
Seattle, Tacoma (SEA)
Thu, 22 oct
22h 15min
1 stop
18:05
Bangkok, Suvarnabhumi (BKK)
Fri, 23 oct +1
568 S$
Asiana Airlines
OZ 271
07:10
Seattle, Tacoma (SEA)
Fri, 23 oct
20h 30min
1 stop
03:40
Bangkok, Suvarnabhumi (BKK)
Sat, 24 oct +1
563 S$
Asiana Airlines
OZ 271
07:10
Seattle, Tacoma (SEA)
Sat, 24 oct
21h 5min
1 stop
04:15
Bangkok, Suvarnabhumi (BKK)
Sun, 25 oct +1
566 S$
United Airlines
UA 1027
19:20
Seattle, Tacoma (SEA)
Thu, 29 oct
33h 10min
1 stop
04:30
Bangkok, Suvarnabhumi (BKK)
Sat, 31 oct +1
588 S$
Korean Air
KE 042
19:00
Seattle, Tacoma (SEA)
Sun, 1 nov
22h 45min
1 stop
17:45
Bangkok, Suvarnabhumi (BKK)
Mon, 2 nov +1
522 S$
Korean Air
KE 42
19:00
Seattle, Tacoma (SEA)
Sun, 8 nov
22h 45min
1 stop
17:45
Bangkok, Suvarnabhumi (BKK)
Mon, 9 nov +1
524 S$
Philippine Airlines
PR 125
05:30
Seattle, Tacoma (SEA)
Fri, 13 nov
34h 15min
1 stop
15:45
Bangkok, Suvarnabhumi (BKK)
Sat, 14 nov +1
521 S$
Korean Air
KE 42
19:00
Seattle, Tacoma (SEA)
Sun, 15 nov
22h 45min
1 stop
17:45
Bangkok, Suvarnabhumi (BKK)
Mon, 16 nov +1
535 S$
Philippine Airlines
PR 125
05:30
Seattle, Tacoma (SEA)
Fri, 20 nov
34h 15min
1 stop
15:45
Bangkok, Suvarnabhumi (BKK)
Sat, 21 nov +1
591 S$
Philippine Airlines
PR 125
05:30
Seattle, Tacoma (SEA)
Sat, 21 nov
30h 15min
1 stop
11:45
Bangkok, Suvarnabhumi (BKK)
Sun, 22 nov +1
669 S$
Singapore Airlines
SQ 27
16:40
Seattle, Tacoma (SEA)
Fri, 27 nov
38h 55min
1 stop
07:35
Bangkok, Suvarnabhumi (BKK)
Sun, 29 nov +1
417 S$
Alaska Airlines
AS 123
19:55
Seattle, Tacoma (SEA)
Fri, 11 dec
19h 55min
1 stop
15:50
Bangkok, Suvarnabhumi (BKK)
Sat, 12 dec +1
884 S$
Alaska Airlines
AS 123
19:55
Seattle, Tacoma (SEA)
Tue, 15 dec
20h 40min
1 stop
16:35
Bangkok, Suvarnabhumi (BKK)
Wed, 16 dec +1
776 S$
Korean Air
KE 42
19:00
Seattle, Tacoma (SEA)
Wed, 16 dec
22h 45min
1 stop
17:45
Bangkok, Suvarnabhumi (BKK)
Thu, 17 dec +1
1 232 S$
Alaska Airlines
AS 123
19:55
Seattle, Tacoma (SEA)
Thu, 17 dec
20h 40min
1 stop
16:35
Bangkok, Suvarnabhumi (BKK)
Fri, 18 dec +1
1 207 S$
Alaska Airlines
AS 119
20:40
Seattle, Tacoma (SEA)
Thu, 17 dec
33h 50min
1 stop
06:30
Bangkok, Suvarnabhumi (BKK)
Sat, 19 dec +1
1 428 S$
Air Canada
AC 8803
18:10
Seattle, Tacoma (SEA)
Fri, 18 dec
41h 10min
3 stops
11:20
Bangkok, Suvarnabhumi (BKK)
Sun, 20 dec +1
1 336 S$
Asiana Airlines
OZ 271
08:10
Seattle, Tacoma (SEA)
Mon, 21 dec
51h 10min
3 stops
11:20
Bangkok, Suvarnabhumi (BKK)
Wed, 23 dec +1
1 099 S$
United Airlines
UA 499
14:57
Seattle, Tacoma (SEA)
Tue, 5 jan
24h 53min
2 stops
15:50
Bangkok, Suvarnabhumi (BKK)
Wed, 6 jan +1
561 S$
Singapore Airlines
SQ 27
16:40
Seattle, Tacoma (SEA)
Wed, 6 jan
41h 20min
1 stop
10:00
Bangkok, Suvarnabhumi (BKK)
Fri, 8 jan +1
480 S$
Nice Helicopteres
JX 31
07:45
Seattle, Tacoma (SEA)
Fri, 8 jan
21h 50min
1 stop
05:35
Bangkok, Suvarnabhumi (BKK)
Sat, 9 jan +1
547 S$
Singapore Airlines
SQ 27
16:40
Seattle, Tacoma (SEA)
Fri, 8 jan
41h 20min
1 stop
10:00
Bangkok, Suvarnabhumi (BKK)
Sun, 10 jan +1
483 S$
Singapore Airlines
SQ 27
16:40
Seattle, Tacoma (SEA)
Sat, 9 jan
41h 20min
1 stop
10:00
Bangkok, Suvarnabhumi (BKK)
Mon, 11 jan +1
476 S$
Singapore Airlines
SQ 27
16:40
Seattle, Tacoma (SEA)
Sun, 10 jan
38h 55min
1 stop
07:35
Bangkok, Suvarnabhumi (BKK)
Tue, 12 jan +1
476 S$
China Airlines
CI 21
08:10
Seattle, Tacoma (SEA)
Mon, 11 jan
21h 55min
1 stop
06:05
Bangkok, Suvarnabhumi (BKK)
Tue, 12 jan +1
570 S$
Singapore Airlines
SQ 27
16:40
Seattle, Tacoma (SEA)
Wed, 13 jan
38h 55min
1 stop
07:35
Bangkok, Suvarnabhumi (BKK)
Fri, 15 jan +1
429 S$
Asiana Airlines
OZ 271
08:10
Seattle, Tacoma (SEA)
Thu, 14 jan
20h 5min
1 stop
04:15
Bangkok, Suvarnabhumi (BKK)
Fri, 15 jan +1
549 S$
Philippine Airlines
PR 125
05:30
Seattle, Tacoma (SEA)
Fri, 15 jan
30h 15min
1 stop
11:45
Bangkok, Suvarnabhumi (BKK)
Sat, 16 jan +1
609 S$
Singapore Airlines
SQ 27
16:40
Seattle, Tacoma (SEA)
Fri, 15 jan
38h 55min
1 stop
07:35
Bangkok, Suvarnabhumi (BKK)
Sun, 17 jan +1
459 S$
Singapore Airlines
SQ 27
16:40
Seattle, Tacoma (SEA)
Sat, 16 jan
38h 55min
1 stop
07:35
Bangkok, Suvarnabhumi (BKK)
Mon, 18 jan +1
442 S$
Singapore Airlines
SQ 27 🔥 Hot deal
16:40
Seattle, Tacoma (SEA)
Sun, 17 jan
38h 55min
1 stop
07:35
Bangkok, Suvarnabhumi (BKK)
Tue, 19 jan +1
380 S$

Low price calendar

September 2026
Price chart (September 2026)
min: 521 S$ · max: 577 S$
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577 S$
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19
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570 S$
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571 S$
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571 S$
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Good deal
521 S$
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Cheap flights Seattle to Bangkok

Cathay Pacific
Cathay Pacific
Thu
Price from
S$320
Singapore Airlines
Singapore Airlines
Wed, Fri, Sat, Sun
Price from
S$380
China Airlines
China Airlines
Mon
Price from
S$476
Korean Air
Korean Air
Mon, Tue, Wed, Thu, Fri, Sun
Price from
S$540
Nice Helicopteres
Nice Helicopteres
Fri
Price from
S$547
Asiana Airlines
Asiana Airlines
Mon, Tue, Thu, Fri, Sat
Price from
S$550
Philippine Airlines
Philippine Airlines
Mon, Fri, Sat
Price from
S$568
Air Canada
Air Canada
Mon, Tue, Fri, Sat
Price from
S$570
United Airlines
United Airlines
Tue, Thu, Fri
Price from
S$577
Alaska Airlines
Alaska Airlines
Tue, Thu, Fri
Price from
S$776

Popular destinations from Seattle

All →
SEA
Seattle — Las Vegas
United States → United States
LAS
from
S$27
SEA
Seattle — Los Angeles
United States → United States
LAX
from
S$29
SEA
Seattle — Denver
United States → United States
DEN
from
S$31
SEA
Seattle — Ontario
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ONT
from
S$50
SEA
Seattle — San Jose
United States → United States
SJC
from
S$55
SEA
Seattle — San Francisco
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SFO
from
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SEA
Seattle — Oakland
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OAK
from
S$59
SEA
Seattle — Sacramento
United States → United States
SAC
from
S$61
SEA
Seattle — Sacramento
United States → United States
SMF
from
S$61

Popular destinations to Bangkok

All →
URT
Surat Thani — Bangkok
Thailand → Thailand
BKK
from
S$12
HKT
Phuket — Bangkok
Thailand → Thailand
BKK
from
S$14
PQC
Phu Quoc — Bangkok
Vietnam → Thailand
BKK
from
S$14
KBV
Krabi — Bangkok
Thailand → Thailand
BKK
from
S$16
CNX
Chiang Mai — Bangkok
Thailand → Thailand
BKK
from
S$22
HRB
Harbin — Bangkok
China → Thailand
BKK
from
S$33
NHA
Nha Trang — Bangkok
Vietnam → Thailand
BKK
from
S$60
DAD
Da Nang — Bangkok
Vietnam → Thailand
BKK
from
S$64
KKC
Khon Kaen — Bangkok
Thailand → Thailand
BKK
from
S$65

Cheap flights Seattle to Bangkok

Interesting facts about the route

Flight time

22h 55min

Distance

11 986 km

Average price

S$544

Most frequent flight

KE 042

Passenger reviews

No reviews for this route yet

Internet abroad

eSIM · Thailand

All plans

maew

10 GB

data

30

days

S$14

Buy

maew

20 GB

data

30

days

S$23

Buy

dtac

data

15

days

S$23

Buy

dtac

data

30

days

S$42

Buy

maew

data

10

days

S$45

Buy

Frequently Asked Questions

The average ticket price Seattle Bangkok is S$544. The cheapest ticket costs S$535, operated by Korean Air, flight 042, departing Seattle on 17 September at 19:50, arriving Bangkok on 18 September at 14:45.
The average flight time is 28 hours 15 minutes. The fastest flight takes 18 hours 55 minutes, flight 042 operated by Korean Air, departing Seattle on 17 September at 19:50, arriving Bangkok on 18 September at 14:45.
Flights on the Seattle - Bangkok route are operated by the following airlines: Air Canada, Alaska Airlines, China Airlines, Cathay Pacific, Nice Helicopteres, Korean Air, Asiana Airlines, Philippine Airlines, Singapore Airlines, United Airlines.
The distance from Seattle to Bangkok is 11986 km.