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Flights from Singapore to Seattle (One-way)

Compare 3 flight options on JAL

* Based on 62 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$547.00
Flight Time18h 20m - 30h 58m
StopsUp to 2 stops

Fares by Cabin Class

Economy$547 ~ $3,853
Premium Eco$2,304 ~ $3,853
Business$3,139 ~ $5,338

Available Route Options

3 different routing options available for this route

Outbound/ReturnFlight TimeStopsEconomyPremium EcoBusiness
OutboundSIN Singapore → HND Haneda → SEA Seattle
18h 20m
1stop
$547~$2,304~$3,139~
OutboundSIN Singapore → NRT Narita → SEA Seattle
20h
1stop
$3,853~$2,313~$3,149~
OutboundSIN Singapore → HND Haneda → SFO San Francisco → SEA Seattle
30h 58m
2stop
--$5,172~
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$547 - $3,8532,922 - 10,543274 - 5542,425 - 8,087210 - 443
Premium Eco$2,304 - $3,85310,543274 - 4588,087210 - 351
Business$3,139 - $5,3387,619 - 14,670241 - 2845,660 - 11,400179 - 220
Learn more about JAL Mileage Bank →

Flight Itineraries & Booking Class Details

Browse 3 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 → HNDHaneda → SEASeattle(18.3h+)
8,087 mi
Economy (Booking Class K)
$547 - $610
2,922FLY ON Points479-534 FLY ON Points/$100
2,425Miles398-443 Miles/$100
▼
Economy (Booking Class S)
$991 - $1,106
4,871FLY ON Points440-492 FLY ON Points/$100
4,043Miles366-408 Miles/$100
▼
Economy (Booking Class M)
$1,904 - $1,912
10,543FLY ON Points551-554 FLY ON Points/$100
8,087Miles423-425 Miles/$100
▼
Premium Eco (Booking Class E)
$2,304 - $2,370
10,543FLY ON Points445-458 FLY ON Points/$100
8,087Miles341-351 Miles/$100
▼
Business (Booking Class P)
$3,139 - $3,153
7,619FLY ON Points242-243 FLY ON Points/$100
5,660Miles180-180 Miles/$100
▼
Premium Eco (Booking Class G)
$3,732 - $3,843
10,543FLY ON Points274-283 FLY ON Points/$100
8,087Miles210-217 Miles/$100
▼
Business (Booking Class C)
$5,221 - $5,328
12,978FLY ON Points244-249 FLY ON Points/$100
10,108Miles190-194 Miles/$100
▼
SINSingapore → NRTNarita → SEASeattle(20.0h+)
8,087 mi
Premium Eco (Booking Class E)
$2,313 - $2,380
10,543FLY ON Points443-456 FLY ON Points/$100
8,087Miles340-350 Miles/$100
▼
Business (Booking Class P)
$3,149 - $3,162
7,619FLY ON Points241-242 FLY ON Points/$100
5,660Miles179-180 Miles/$100
▼
Premium Eco (Booking Class G)
$3,742 - $3,853
10,543FLY ON Points274-282 FLY ON Points/$100
8,087Miles210-216 Miles/$100
▼
Economy (Booking Class Y)
$3,853
10,543FLY ON Points274 FLY ON Points/$100
8,087Miles210 Miles/$100
▼
Business (Booking Class C)
$5,230 - $5,338
12,978FLY ON Points243-248 FLY ON Points/$100
10,108Miles189-193 Miles/$100
▼
SINSingapore → HNDHaneda → SFOSan Francisco → SEASeattle(31.0h+)
9,121 mi
Business (Booking Class C)
$5,172 - $5,255
14,670FLY ON Points279-284 FLY ON Points/$100
11,400Miles217-220 Miles/$100
▼

FAQ

You can earn between 2,922 and 14,670 Premium Points depending on booking class. Economy: 2,922–10,543. Premium Economy: 10,543–10,543. Business: 7,619–14,670.

The lowest fare starts at $547. Economy from $547. Premium Economy from $2,304. Business from $3,139.

Economy class offers better Premium Points per cost. Economy: up to 553.7, Business: up to 283.6.

Yes. All Nippon Airways flights can also be credited to: Status Miles (TK), PQP (UA), Status Points (LH).

The shortest flight time is approximately 18.3h.

Seattle on other airlines

ANATurkishBritish AirwaysUnitedSingaporeAmericanAlaskaQatarLufthansaCompare All

Other destinations from Singapore

VancouverLos AngelesManilaBostonSan FranciscoBeijing
OriginSINSingaporeChange
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DestinationSEASeattle
Destinations (29)
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