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Flights from Seattle to Bangkok

Compare 14 flight options on JAL

* Based on 1090 flight price data points (fetched: 2026-02-14 〜 2026-02-22). Not real-time data and may not cover all departure dates. Please check the airline's official website for the latest fares and availability.

Lowest Fare$7,895.00
Flight Time26h 35m - 54h 6m
StopsUp to 2 stops

Fares by Cabin Class

Economy$7,895 ~ $14,156
Business$15,848 ~ $23,951

Available Route Options

14 different routing options available for this route

Outbound/ReturnFlight TimeStopsEconomyBusiness
OutboundSEA Seattle → LHR London Heathrow → DOH Doha → BKK Bangkok
ReturnBKK Bangkok → DOH Doha → LGW London Gatwick → SEA Seattle
26h 35m28h 30m
2stop2stop
$13,897~$23,951~
OutboundSEA Seattle → LHR London Heathrow → DOH Doha → BKK Bangkok
ReturnBKK Bangkok → DOH Doha → LHR London Heathrow → SEA Seattle
26h 35m28h 30m
2stop2stop
$13,870~$23,924~
OutboundSEA Seattle → LHR London Heathrow → BKK Bangkok
ReturnBKK Bangkok → DOH Doha → LGW London Gatwick → SEA Seattle
29h 45m28h 30m
1stop2stop
$7,921~$15,874~
OutboundSEA Seattle → LHR London Heathrow → BKK Bangkok
ReturnBKK Bangkok → DOH Doha → LHR London Heathrow → SEA Seattle
29h 45m28h 30m
1stop2stop
$7,895~$15,848~
OutboundSEA Seattle → YVR Vancouver → LHR London Heathrow → BKK Bangkok
ReturnBKK Bangkok → DOH Doha → LHR London Heathrow → SEA Seattle
32h 29m28h 30m
2stop2stop
$8,138~$17,888~
OutboundSEA Seattle → YVR Vancouver → LHR London Heathrow → BKK Bangkok
ReturnBKK Bangkok → DOH Doha → LGW London Gatwick → SEA Seattle
32h 29m28h 30m
2stop2stop
$8,164~$17,914~
OutboundSEA Seattle → DFW Dallas → LHR London Heathrow → BKK Bangkok
ReturnBKK Bangkok → DOH Doha → LHR London Heathrow → SEA Seattle
34h 25m28h 30m
2stop2stop
$8,087~$15,852~
OutboundSEA Seattle → DFW Dallas → LHR London Heathrow → BKK Bangkok
ReturnBKK Bangkok → DOH Doha → LGW London Gatwick → SEA Seattle
34h 25m28h 30m
2stop2stop
$8,114~$15,879~

+6 more routing options available

Book on Japan Airlines Official Website→
Search real-time Seattle to Bangkok flights on Expedia→

Compare fares with other airlines

Compare fares from different airlines operating on this route. Click on any airline to view detailed flight information and mileage earning potential.

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Miles & Status Points Earning

(when crediting to JAL Mileage Bank)

When crediting this Japan Airlines flight to JAL Mileage Bank, you earn both FLY ON Points (for elite status) and Miles (for award tickets). Here's how they work:

  • FLY ON Points: FLY ON Points are used for elite status qualification. Accumulate enough points within a calendar year to achieve higher status tiers, which unlock benefits like lounge access, priority boarding, bonus miles, and complimentary upgrades. Status points are calculated based on fare price or flight distance depending on the airline.
  • Miles: Miles are your reward currency for free flights. Redeem accumulated miles for award tickets on the airline and its partners. Miles earned depend on flight distance and your booking class. Higher booking classes earn more miles per flight.

The "FLY ON Points/$100" and "Miles/$100" columns show earning efficiency - higher numbers mean better value for your money. Compare different cabin classes to find the best balance between comfort and mileage earning.

As a oneworld member, Japan Airlines flights can be credited to partner programs. Compare earning potential:Executive Club, AAdvantage

CabinFareFLY ON PointsFLY ON Points/$100MilesMiles/$100
Economy$7,895 - $14,1566,627 - 11,43981 - 8535,266 - 63,236447
Business$15,848 - $23,95113,798 - 20,23184 - 8870,793 - 106,990447
Learn more about JAL Mileage Bank →

Flight Itineraries & Booking Class Details

Browse 14 available flight options from Seattle to Bangkok. Each itinerary shows the route, layover cities, flight duration, and detailed fare information.

📘What are booking classes?

Even within the same Economy cabin, tickets have hidden categories called "booking classes." Cheaper tickets get lower booking classes (Q, V, etc.) while expensive tickets get higher ones (Y, B, etc.). This dramatically affects how many miles you earn. On popular dates, cheaper booking classes sell out first, so closer to departure you may only find expensive fares—which do earn more miles. Click any fare to see the calculation details.

💡Smart booking tips

To maximize miles earned per dollar spent, look for fares with higher "Points/cost" or "Miles/cost" values. However, keep in mind that booking class also affects change/cancellation flexibility—cheaper fares often have stricter policies.

Flight List
SEASeattle → LHRLondon Heathrow → DOHDoha → BKKBangkok(26.6h+)BKKBangkok → DOHDoha → LGWLondon Gatwick → SEASeattle(28.5h+)
22,620 mi
Economy (Booking Class Y)
$13,897 - $14,147
11,246 - 11,432FLY ON Points81-81 FLY ON Points/$100
62,078 - 63,194Miles447 Miles/$100
▼
Premium Eco/Economy (Booking Class W, W, W, Y, Y, Y)
$14,139 - $14,425
11,551 - 11,764FLY ON Points82-82 FLY ON Points/$100
63,159 - 64,436Miles447 Miles/$100
▼
Business (Booking Class J)
$23,951
20,231FLY ON Points85 FLY ON Points/$100
106,990Miles447 Miles/$100
▼
SEASeattle → LHRLondon Heathrow → DOHDoha → BKKBangkok(26.6h+)BKKBangkok → DOHDoha → LHRLondon Heathrow → SEASeattle(28.5h+)
22,620 mi
Economy (Booking Class Y)
$13,870 - $14,156
11,226 - 11,439FLY ON Points81-81 FLY ON Points/$100
61,958 - 63,236Miles447 Miles/$100
▼
Premium Eco/Economy (Booking Class W, W, W, Y, Y, Y)
$14,112 - $14,434
11,531 - 11,771FLY ON Points82-82 FLY ON Points/$100
63,039 - 64,478Miles447 Miles/$100
▼
Business (Booking Class J)
$23,924
20,211FLY ON Points85 FLY ON Points/$100
106,871Miles447 Miles/$100
▼
SEASeattle → LHRLondon Heathrow → BKKBangkok(29.8h+)BKKBangkok → DOHDoha → LGWLondon Gatwick → SEASeattle(28.5h+)
22,027 mi
Economy (Booking Class S, S, Y, Y, Y)
$7,921 - $8,382
6,647 - 6,990FLY ON Points83-84 FLY ON Points/$100
35,385 - 37,445Miles447 Miles/$100
▼
Economy (Booking Class B, B, Y, Y, Y)
$10,486 - $10,736
8,557 - 8,743FLY ON Points81-82 FLY ON Points/$100
46,843 - 47,960Miles447 Miles/$100
▼
Premium Eco/Economy (Booking Class W)
$14,210
11,704FLY ON Points82 FLY ON Points/$100
63,479Miles447 Miles/$100
▼
Business (Booking Class I, I, J, J, J)
$15,874 - $16,124
13,818 - 14,005FLY ON Points87-87 FLY ON Points/$100
70,913 - 72,030Miles447 Miles/$100
▼
Business (Booking Class D, D, J, J, J)
$17,914 - $18,165
15,337 - 15,524FLY ON Points86-86 FLY ON Points/$100
80,025 - 81,147Miles447 Miles/$100
▼
SEASeattle → LHRLondon Heathrow → BKKBangkok(29.8h+)BKKBangkok → DOHDoha → LHRLondon Heathrow → SEASeattle(28.5h+)
22,027 mi
Economy (Booking Class S, S, Y, Y, Y)
$7,895 - $8,392
6,627 - 6,997FLY ON Points83-84 FLY ON Points/$100
35,266 - 37,486Miles447 Miles/$100
▼
Economy (Booking Class B, B, Y, Y, Y)
$10,460 - $10,746
8,537 - 8,750FLY ON Points81-82 FLY ON Points/$100
46,725 - 48,002Miles447 Miles/$100
▼
Premium Eco/Economy (Booking Class W)
$14,184 - $14,220
11,685 - 11,711FLY ON Points82 FLY ON Points/$100
63,361 - 63,521Miles447 Miles/$100
▼
Business (Booking Class I, I, J, J, J)
$15,848 - $16,098
13,798 - 13,985FLY ON Points87-87 FLY ON Points/$100
70,793 - 71,910Miles447 Miles/$100
▼
Business (Booking Class D, D, J, J, J)
$17,888 - $18,139
15,317 - 15,504FLY ON Points86-86 FLY ON Points/$100
79,907 - 81,028Miles447 Miles/$100
▼
SEASeattle → YVRVancouver → LHRLondon Heathrow → BKKBangkok(32.5h+)BKKBangkok → DOHDoha → LHRLondon Heathrow → SEASeattle(28.5h+)
22,078 mi
Economy (Booking Class L, L, L, Y, Y, Y)
$8,138 - $8,534
6,883 - 7,178FLY ON Points84-85 FLY ON Points/$100
36,352 - 38,121Miles447 Miles/$100
▼
Economy (Booking Class M, M, M, Y, Y, Y)
$8,251 - $8,647
6,967 - 7,262FLY ON Points84-84 FLY ON Points/$100
36,857 - 38,626Miles447 Miles/$100
▼
Premium Eco/Economy (Booking Class E, E, E, Y, Y, Y)
$8,602 - $8,888
7,479 - 7,692FLY ON Points87-87 FLY ON Points/$100
38,424 - 39,702Miles447 Miles/$100
▼
Economy (Booking Class B, B, B, Y, Y, Y)
$10,492 - $10,778
8,636 - 8,849FLY ON Points82-82 FLY ON Points/$100
46,868 - 48,145Miles447 Miles/$100
▼
Premium Eco/Economy (Booking Class W, W, W, Y, Y, Y)
$13,966 - $14,252
11,472 - 11,685FLY ON Points82-82 FLY ON Points/$100
62,387 - 63,664Miles447 Miles/$100
▼
Business (Booking Class D, D, D, J, J, J)
$17,888 - $18,139
15,492 - 15,679FLY ON Points86-87 FLY ON Points/$100
79,907 - 81,028Miles447 Miles/$100
▼
SEASeattle → YVRVancouver → LHRLondon Heathrow → BKKBangkok(32.5h+)BKKBangkok → DOHDoha → LGWLondon Gatwick → SEASeattle(28.5h+)
22,078 mi
Economy (Booking Class L, L, L, Y, Y, Y)
$8,164 - $8,524
6,903 - 7,171FLY ON Points84-85 FLY ON Points/$100
36,471 - 38,079Miles447 Miles/$100
▼
Economy (Booking Class M, M, M, Y, Y, Y)
$8,277 - $8,637
6,987 - 7,255FLY ON Points84-84 FLY ON Points/$100
36,975 - 38,583Miles447 Miles/$100
▼
Premium Eco/Economy (Booking Class E, E, E, Y, Y, Y)
$8,628 - $8,878
7,499 - 7,685FLY ON Points87-87 FLY ON Points/$100
38,544 - 39,660Miles447 Miles/$100
▼
Economy (Booking Class B, B, B, Y, Y, Y)
$10,518 - $10,768
8,656 - 8,842FLY ON Points82-82 FLY ON Points/$100
46,986 - 48,103Miles447 Miles/$100
▼
Premium Eco/Economy (Booking Class W, W, W, Y, Y, Y)
$13,992 - $14,242
11,492 - 11,678FLY ON Points82-82 FLY ON Points/$100
62,505 - 63,622Miles447 Miles/$100
▼
Business (Booking Class D, D, D, J, J, J)
$17,914 - $18,165
15,512 - 15,699FLY ON Points86-87 FLY ON Points/$100
80,025 - 81,147Miles447 Miles/$100
▼
SEASeattle → DFWDallas → LHRLondon Heathrow → BKKBangkok(34.4h+)BKKBangkok → DOHDoha → LHRLondon Heathrow → SEASeattle(28.5h+)
23,648 mi
Economy (Booking Class V, V, V, Y, Y, Y)
$8,087 - $8,483
6,846 - 7,140FLY ON Points84-85 FLY ON Points/$100
36,126 - 37,895Miles447 Miles/$100
▼
Premium Eco/Economy (Booking Class T, T, T, Y, Y, Y)
$8,360 - $8,646
7,299 - 7,512FLY ON Points87-87 FLY ON Points/$100
37,346 - 38,623Miles447 Miles/$100
▼
Economy (Booking Class B, B, B, Y, Y, Y)
$10,496 - $10,782
8,639 - 8,852FLY ON Points82-82 FLY ON Points/$100
46,888 - 48,165Miles447 Miles/$100
▼
Premium Eco/Economy (Booking Class W, W, W, Y, Y, Y)
$13,970 - $14,256
11,476 - 11,689FLY ON Points82-82 FLY ON Points/$100
62,407 - 63,684Miles447 Miles/$100
▼
Business (Booking Class I, I, I, J, J, J)
$15,852 - $16,102
13,977 - 14,163FLY ON Points88-88 FLY ON Points/$100
70,814 - 71,930Miles447 Miles/$100
▼
Business (Booking Class R, R, R, J, J, J)
$16,151 - $17,501
14,200 - 15,205FLY ON Points87-88 FLY ON Points/$100
72,150 - 78,180Miles447 Miles/$100
▼
SEASeattle → DFWDallas → LHRLondon Heathrow → BKKBangkok(34.4h+)BKKBangkok → DOHDoha → LGWLondon Gatwick → SEASeattle(28.5h+)
23,648 mi
Economy (Booking Class V, V, V, Y, Y, Y)
$8,114 - $8,474
6,865 - 7,133FLY ON Points84-85 FLY ON Points/$100
36,245 - 37,853Miles447 Miles/$100
▼
Premium Eco/Economy (Booking Class T, T, T, Y, Y, Y)
$8,387 - $8,637
7,319 - 7,505FLY ON Points87-87 FLY ON Points/$100
37,465 - 38,582Miles447 Miles/$100
▼
Economy (Booking Class B, B, B, Y, Y, Y)
$10,523 - $10,773
8,659 - 8,845FLY ON Points82-82 FLY ON Points/$100
47,006 - 48,123Miles447 Miles/$100
▼
Premium Eco/Economy (Booking Class W, W, W, Y, Y, Y)
$13,997 - $14,247
11,495 - 11,682FLY ON Points82-82 FLY ON Points/$100
62,525 - 63,642Miles447 Miles/$100
▼
Business (Booking Class I, I, I, J, J, J)
$15,879 - $16,129
13,997 - 14,183FLY ON Points88-88 FLY ON Points/$100
70,933 - 72,050Miles447 Miles/$100
▼
Business (Booking Class R, R, R, J, J, J)
$16,178 - $17,528
14,219 - 15,224FLY ON Points87-88 FLY ON Points/$100
72,268 - 78,299Miles447 Miles/$100
▼
SEASeattle → ORDChicago → LHRLondon Heathrow → BKKBangkok(34.9h+)BKKBangkok → DOHDoha → LHRLondon Heathrow → SEASeattle(28.5h+)
22,914 mi
Economy (Booking Class N, N, N, Y, Y, Y)
$7,927 - $8,561
6,726 - 7,198FLY ON Points84-85 FLY ON Points/$100
35,411 - 38,243Miles447 Miles/$100
▼
Economy (Booking Class S, S, S, Y, Y, Y)
$7,982 - $8,379
6,767 - 7,063FLY ON Points84-85 FLY ON Points/$100
35,657 - 37,430Miles447 Miles/$100
▼
Economy (Booking Class V, V, V, Y, Y, Y)
$8,038 - $8,434
6,809 - 7,104FLY ON Points84-85 FLY ON Points/$100
35,907 - 37,676Miles447 Miles/$100
▼
Premium Eco/Economy (Booking Class T, T, T, Y, Y, Y)
$8,275 - $8,561
7,236 - 7,448FLY ON Points87-87 FLY ON Points/$100
36,966 - 38,243Miles447 Miles/$100
▼
Economy (Booking Class B, B, B, Y, Y, Y)
$10,447 - $10,733
8,603 - 8,816FLY ON Points82-82 FLY ON Points/$100
46,669 - 47,947Miles447 Miles/$100
▼
Premium Eco/Economy (Booking Class W, W, W, Y, Y, Y)
$13,885 - $14,171
11,412 - 11,625FLY ON Points82-82 FLY ON Points/$100
62,027 - 63,305Miles447 Miles/$100
▼
Business (Booking Class R, R, R, J, J, J)
$16,151 - $17,501
14,200 - 15,205FLY ON Points87-88 FLY ON Points/$100
72,150 - 78,180Miles447 Miles/$100
▼
Business (Booking Class D, D, D, J, J, J)
$17,892 - $18,143
15,496 - 15,683FLY ON Points86-87 FLY ON Points/$100
79,927 - 81,048Miles447 Miles/$100
▼
SEASeattle → ORDChicago → LHRLondon Heathrow → BKKBangkok(34.9h+)BKKBangkok → DOHDoha → LGWLondon Gatwick → SEASeattle(28.5h+)
22,914 mi
Economy (Booking Class N, N, N, Y, Y, Y)
$7,954 - $8,552
6,746 - 7,192FLY ON Points84-85 FLY ON Points/$100
35,531 - 38,202Miles447 Miles/$100
▼
Economy (Booking Class S, S, S, Y, Y, Y)
$8,009 - $8,370
6,787 - 7,056FLY ON Points84-85 FLY ON Points/$100
35,776 - 37,389Miles447 Miles/$100
▼
Economy (Booking Class V, V, V, Y, Y, Y)
$8,065 - $8,425
6,829 - 7,097FLY ON Points84-85 FLY ON Points/$100
36,026 - 37,635Miles447 Miles/$100
▼
Premium Eco/Economy (Booking Class T, T, T, Y, Y, Y)
$8,302 - $8,552
7,255 - 7,442FLY ON Points87-87 FLY ON Points/$100
37,085 - 38,202Miles447 Miles/$100
▼
Economy (Booking Class B, B, B, Y, Y, Y)
$10,474 - $10,724
8,622 - 8,809FLY ON Points82-82 FLY ON Points/$100
46,787 - 47,904Miles447 Miles/$100
▼
Premium Eco/Economy (Booking Class W, W, W, Y, Y, Y)
$13,912 - $14,162
11,432 - 11,618FLY ON Points82-82 FLY ON Points/$100
62,145 - 63,262Miles447 Miles/$100
▼
Business (Booking Class R, R, R, J, J, J)
$16,178 - $17,528
14,219 - 15,224FLY ON Points87-88 FLY ON Points/$100
72,268 - 78,299Miles447 Miles/$100
▼
Business (Booking Class D, D, D, J, J, J)
$17,919 - $18,170
15,515 - 15,702FLY ON Points86-87 FLY ON Points/$100
80,045 - 81,167Miles447 Miles/$100
▼

FAQ

You can earn between 6,627 and 20,231 Tier Points depending on booking class. Economy: 6,627–11,439. Business: 13,798–20,231. Premium Economy/Economy (Mixed): 7,236–11,771.

The lowest fare starts at $7,895. Economy from $7,895. Business from $15,848. Premium Economy/Economy (Mixed) from $8,275.

Business class offers better Tier Points per cost. Economy: up to 84.8, Business: up to 88.2.

Yes. British Airways flights can also be credited to: FLY ON Points (JAL).

The shortest flight time is approximately 26.6h.

Bangkok on other airlines

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Other destinations from Seattle

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OriginSEASeattleChange
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DestinationBKKBangkok
Destinations (22)
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