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Flights from Singapore to Seattle (One-way)

Compare 6 flight options on JAL

* Based on 270 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$1,300.00
Flight Time27h 15m - 36h 11m
StopsUp to 2 stops

Fares by Cabin Class

Economy$1,300 ~ $3,759
Premium Eco$3,181 ~ $4,055
Business$5,558 ~ $9,695
First$13,625 ~ $17,022

Available Route Options

6 different routing options available for this route

Outbound/ReturnFlight TimeStopsEconomyPremium EcoBusinessFirst
OutboundSIN Singapore → LHR London Heathrow → SEA Seattle
27h 15m
1stop
$1,300~$3,181~$5,718~$13,625~
OutboundSIN Singapore → LHR London Heathrow → DFW Dallas → SEA Seattle
32h 24m
2stop
$1,372~-$5,762~-
OutboundSIN Singapore → LHR London Heathrow → SFO San Francisco → SEA Seattle
33h 45m
2stop
$1,375~-$7,588~-
OutboundSIN Singapore → LHR London Heathrow → YVR Vancouver → SEA Seattle
34h 12m
2stop
$1,464~---
OutboundSIN Singapore → LHR London Heathrow → LAX Los Angeles → SEA Seattle
34h 43m
2stop
$1,372~-$5,762~-
OutboundSIN Singapore → LHR London Heathrow → ORD Chicago → SEA Seattle
36h 11m
2stop
$1,338~-$5,558~-
Book on Japan Airlines Official Website→
Search real-time Singapore to Seattle 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$1,300 - $3,7591,282 - 3,21586 - 1045,893 - 17,041453 - 453
Premium Eco$3,181 - $4,0552,953 - 3,61389 - 9314,419 - 18,380453
Business$5,558 - $9,6955,120 - 8,30086 - 9325,193 - 43,950453
First$13,625 - $17,02211,393 - 13,96082 - 8461,763 - 77,161453
Learn more about JAL Mileage Bank →

Flight Itineraries & Booking Class Details

Browse 6 available flight options from Singapore to Seattle. 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
SINSingapore → LHRLondon Heathrow → SEASeattle(27.3h+)
11,537 mi
Economy (Booking Class V)
$1,300 - $1,449
1,282 - 1,394FLY ON Points96-99 FLY ON Points/$100
5,893 - 6,567Miles453-453 Miles/$100
▼
Economy (Booking Class L)
$1,402 - $1,546
1,359 - 1,468FLY ON Points95-97 FLY ON Points/$100
6,355 - 7,008Miles453 Miles/$100
▼
Premium Eco (Booking Class T)
$3,181 - $3,306
2,953 - 3,047FLY ON Points92-93 FLY ON Points/$100
14,419 - 14,985Miles453 Miles/$100
▼
Premium Eco (Booking Class E)
$3,944 - $4,055
3,529 - 3,613FLY ON Points89-90 FLY ON Points/$100
17,877 - 18,380Miles453 Miles/$100
▼
Business (Booking Class I)
$5,718 - $6,130
5,120 - 5,431FLY ON Points89-90 FLY ON Points/$100
25,920 - 27,787Miles453 Miles/$100
▼
Business (Booking Class R)
$6,655 - $7,043
5,827 - 6,120FLY ON Points87-88 FLY ON Points/$100
30,167 - 31,925Miles453 Miles/$100
▼
First (Booking Class A)
$13,625 - $14,075
11,393 - 11,733FLY ON Points83-84 FLY ON Points/$100
61,763 - 63,802Miles453 Miles/$100
▼
First (Booking Class F)
$16,945 - $17,022
13,902 - 13,960FLY ON Points82 FLY ON Points/$100
76,813 - 77,161Miles453 Miles/$100
▼
SINSingapore → LHRLondon Heathrow → DFWDallas → SEASeattle(32.4h+)
13,158 mi
Economy (Booking Class V)
$1,372 - $1,482
1,411 - 1,494FLY ON Points101-103 FLY ON Points/$100
6,217 - 6,716Miles453-453 Miles/$100
▼
Economy (Booking Class L)
$1,474 - $1,584
1,488 - 1,571FLY ON Points99-101 FLY ON Points/$100
6,680 - 7,178Miles453 Miles/$100
▼
Economy (Booking Class M)
$1,576 - $1,686
1,565 - 1,648FLY ON Points98-99 FLY ON Points/$100
7,142 - 7,641Miles453 Miles/$100
▼
Economy (Booking Class K)
$1,683 - $1,794
1,646 - 1,730FLY ON Points96-98 FLY ON Points/$100
7,631 - 8,134Miles453 Miles/$100
▼
Economy (Booking Class H)
$2,177 - $2,288
2,020 - 2,103FLY ON Points92-93 FLY ON Points/$100
9,870 - 10,373Miles453 Miles/$100
▼
Premium Eco/Economy (Booking Class T)
$3,219 - $3,329
3,056 - 3,139FLY ON Points94-95 FLY ON Points/$100
14,590 - 15,089Miles453-453 Miles/$100
▼
Economy (Booking Class Y)
$3,759
3,215FLY ON Points86 FLY ON Points/$100
17,041Miles453 Miles/$100
▼
Premium Eco/Economy (Booking Class E)
$3,981 - $4,092
3,633 - 3,716FLY ON Points91-91 FLY ON Points/$100
18,048 - 18,551Miles453-453 Miles/$100
▼
Premium Eco/Economy (Booking Class W)
$5,404
4,708FLY ON Points87 FLY ON Points/$100
24,498Miles453 Miles/$100
▼
Business (Booking Class I)
$5,762 - $6,149
5,328 - 5,620FLY ON Points91-93 FLY ON Points/$100
26,118 - 27,872Miles453 Miles/$100
▼
Business (Booking Class R)
$6,671 - $7,086
6,014 - 6,328FLY ON Points89-90 FLY ON Points/$100
30,238 - 32,123Miles453 Miles/$100
▼
Business (Booking Class D)
$7,588 - $8,008
6,707 - 7,025FLY ON Points88-88 FLY ON Points/$100
34,395 - 36,303Miles453 Miles/$100
▼
Business (Booking Class C)
$9,307 - $9,695
8,006 - 8,300FLY ON Points86-86 FLY ON Points/$100
42,191 - 43,950Miles453 Miles/$100
▼
First/Business (Booking Class F)
$16,989 - $17,065
14,110 - 14,168FLY ON Points83-83 FLY ON Points/$100
77,011 - 77,359Miles453 Miles/$100
▼
SINSingapore → LHRLondon Heathrow → SFOSan Francisco → SEASeattle(33.8h+)
12,785 mi
Economy (Booking Class V)
$1,375 - $1,486
1,414 - 1,498FLY ON Points101-103 FLY ON Points/$100
6,234 - 6,738Miles453 Miles/$100
▼
Economy (Booking Class L)
$1,474 - $1,584
1,488 - 1,571FLY ON Points99-101 FLY ON Points/$100
6,680 - 7,178Miles453 Miles/$100
▼
Economy (Booking Class M)
$1,576 - $1,686
1,565 - 1,648FLY ON Points98-99 FLY ON Points/$100
7,142 - 7,641Miles453 Miles/$100
▼
Economy (Booking Class K)
$1,678 - $1,788
1,642 - 1,725FLY ON Points97-98 FLY ON Points/$100
7,604 - 8,103Miles453 Miles/$100
▼
Premium Eco/Economy (Booking Class T)
$3,219 - $3,343
3,056 - 3,151FLY ON Points94-95 FLY ON Points/$100
14,590 - 15,156Miles453-453 Miles/$100
▼
Business/Economy (Booking Class I)
$5,756 - $6,143
5,223 - 5,515FLY ON Points90-91 FLY ON Points/$100
26,090 - 27,845Miles453 Miles/$100
▼
Business/Economy (Booking Class R)
$6,671 - $7,080
5,914 - 6,224FLY ON Points88-89 FLY ON Points/$100
30,238 - 32,096Miles453 Miles/$100
▼
Business (Booking Class D)
$7,588 - $8,008
6,707 - 7,025FLY ON Points88-88 FLY ON Points/$100
34,395 - 36,303Miles453 Miles/$100
▼
First/Business (Booking Class A)
$13,669 - $14,118
11,601 - 11,941FLY ON Points85-85 FLY ON Points/$100
61,961 - 64,000Miles453 Miles/$100
▼
First/Business (Booking Class F)
$16,989 - $17,065
14,110 - 14,168FLY ON Points83-83 FLY ON Points/$100
77,011 - 77,359Miles453 Miles/$100
▼
SINSingapore → LHRLondon Heathrow → YVRVancouver → SEASeattle(34.2h+)
11,588 mi
Economy (Booking Class L)
$1,464 - $1,574
1,480 - 1,563FLY ON Points99-101 FLY ON Points/$100
6,634 - 7,132Miles453 Miles/$100
▼
Economy (Booking Class M)
$1,566 - $1,676
1,557 - 1,640FLY ON Points98-99 FLY ON Points/$100
7,096 - 7,595Miles453-453 Miles/$100
▼
Premium Eco/Economy (Booking Class T)
$3,209 - $3,319
3,049 - 3,132FLY ON Points94-95 FLY ON Points/$100
14,544 - 15,043Miles453 Miles/$100
▼
Business/Economy (Booking Class R)
$6,655 - $7,041
5,902 - 6,194FLY ON Points88-89 FLY ON Points/$100
30,165 - 31,915Miles453 Miles/$100
▼
Business/Economy (Booking Class D)
$7,572 - $7,959
6,595 - 6,887FLY ON Points87-87 FLY ON Points/$100
34,322 - 36,076Miles453 Miles/$100
▼
SINSingapore → LHRLondon Heathrow → LAXLos Angeles → SEASeattle(34.7h+)
13,153 mi
Economy (Booking Class V)
$1,372 - $1,486
1,411 - 1,498FLY ON Points101-103 FLY ON Points/$100
6,217 - 6,738Miles453-453 Miles/$100
▼
Economy (Booking Class L)
$1,474 - $1,589
1,488 - 1,575FLY ON Points99-101 FLY ON Points/$100
6,680 - 7,205Miles453-453 Miles/$100
▼
Economy (Booking Class K)
$1,678 - $1,788
1,642 - 1,725FLY ON Points97-98 FLY ON Points/$100
7,604 - 8,103Miles453 Miles/$100
▼
Premium Eco/Economy (Booking Class T)
$3,219 - $3,343
3,056 - 3,151FLY ON Points94-95 FLY ON Points/$100
14,590 - 15,156Miles453-453 Miles/$100
▼
Premium Eco/Economy (Booking Class E)
$3,965 - $4,092
3,620 - 3,716FLY ON Points91-91 FLY ON Points/$100
17,972 - 18,551Miles453 Miles/$100
▼
Business (Booking Class I)
$5,762 - $6,149
5,328 - 5,620FLY ON Points91-93 FLY ON Points/$100
26,118 - 27,872Miles453 Miles/$100
▼
Business (Booking Class R)
$6,671 - $7,086
6,014 - 6,328FLY ON Points89-90 FLY ON Points/$100
30,238 - 32,123Miles453 Miles/$100
▼
Business (Booking Class D)
$7,588 - $8,008
6,707 - 7,025FLY ON Points88-88 FLY ON Points/$100
34,395 - 36,303Miles453 Miles/$100
▼
Business (Booking Class C)
$9,307 - $9,695
8,006 - 8,300FLY ON Points86-86 FLY ON Points/$100
42,191 - 43,950Miles453 Miles/$100
▼
First/Business (Booking Class A)
$13,669 - $14,118
11,601 - 11,941FLY ON Points85-85 FLY ON Points/$100
61,961 - 64,000Miles453 Miles/$100
▼
First/Business (Booking Class F)
$16,989 - $17,065
14,110 - 14,168FLY ON Points83-83 FLY ON Points/$100
77,011 - 77,359Miles453 Miles/$100
▼
SINSingapore → LHRLondon Heathrow → ORDChicago → SEASeattle(36.2h+)
12,424 mi
Economy (Booking Class V)
$1,338 - $1,452
1,385 - 1,472FLY ON Points101-104 FLY ON Points/$100
6,063 - 6,584Miles453-453 Miles/$100
▼
Economy (Booking Class M)
$1,547 - $1,658
1,544 - 1,627FLY ON Points98-100 FLY ON Points/$100
7,014 - 7,517Miles453 Miles/$100
▼
Premium Eco/Economy (Booking Class T)
$3,170 - $3,294
3,019 - 3,114FLY ON Points95-95 FLY ON Points/$100
14,368 - 14,934Miles453-453 Miles/$100
▼
Premium Eco/Economy (Booking Class E)
$3,932 - $4,043
3,596 - 3,679FLY ON Points91-92 FLY ON Points/$100
17,826 - 18,329Miles453 Miles/$100
▼
Business (Booking Class I)
$5,558 - $5,951
5,173 - 5,470FLY ON Points92-93 FLY ON Points/$100
25,193 - 26,974Miles453 Miles/$100
▼
Business (Booking Class R)
$6,500 - $6,888
5,886 - 6,179FLY ON Points90-91 FLY ON Points/$100
29,467 - 31,226Miles453 Miles/$100
▼
First/Business (Booking Class A)
$13,471 - $13,858
11,452 - 11,744FLY ON Points85-85 FLY ON Points/$100
61,063 - 62,818Miles453 Miles/$100
▼
First/Business (Booking Class F)
$16,867
14,018FLY ON Points83 FLY ON Points/$100
76,461Miles453 Miles/$100
▼

FAQ

You can earn between 1,282 and 14,168 Tier Points depending on booking class. Economy: 1,282–3,215. Premium Economy: 2,953–3,613. Business: 5,120–8,300. First: 11,393–13,960. Business/Economy (Mixed): 5,223–6,887. First/Business (Mixed): 11,452–14,168. Premium Economy/Economy (Mixed): 3,019–4,708.

The lowest fare starts at $1,300. Economy from $1,300. Premium Economy from $3,181. Business from $5,558. First from $13,625. Business/Economy (Mixed) from $5,756. First/Business (Mixed) from $13,471. Premium Economy/Economy (Mixed) from $3,170.

Economy class offers better Tier Points per cost. Economy: up to 103.5, Business: up to 93.1.

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

The shortest flight time is approximately 27.2h.

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OriginSINSingaporeChange
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DestinationSEASeattle
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