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Flights from Seattle to Singapore

Compare 2 flight options on JAL

* Based on 33 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$1,394.00
Flight Time17h 45m - 23h 55m
Stops1 stop

Fares by Cabin Class

Economy$1,394 ~ $4,675
Business$5,067 ~ $9,075

Available Route Options

2 different routing options available for this route

Outbound/ReturnFlight TimeStopsEconomyBusiness
OutboundSEA Seattle → NRT Narita → SIN Singapore
ReturnSIN Singapore → NRT Narita → SEA Seattle
19h 55m17h 45m
1stop1stop
$1,543~$5,067~
OutboundSEA Seattle → NRT Narita → SIN Singapore
ReturnSIN Singapore → HND Haneda → SEA Seattle
19h 55m23h 55m
1stop1stop
$1,394~$5,075~
Book on Japan Airlines Official Website→
Search real-time Seattle to Singapore flights on Expedia→

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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$1,394 - $4,6755,844 - 21,086288 - 5674,850 - 16,174239 - 405
Business$5,067 - $9,07515,238 - 25,956215 - 37011,320 - 20,216160 - 286
Learn more about JAL Mileage Bank →

Flight Itineraries & Booking Class Details

Browse 2 available flight options from Seattle to Singapore. 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 → NRTNarita → SINSingapore(19.9h+)SINSingapore → NRTNarita → SEASeattle(17.8h+)
16,174 mi
Economy (Booking Class Q, Q, N, N)
$1,543 - $1,703
5,844FLY ON Points343-379 FLY ON Points/$100
4,850Miles285-314 Miles/$100
▼
Economy (Booking Class N, N, O, O)
$1,867 - $2,027
5,844FLY ON Points288-313 FLY ON Points/$100
4,850Miles239-260 Miles/$100
▼
Economy (Booking Class S, S, O, O)
$1,991 - $2,507
8,593FLY ON Points343-432 FLY ON Points/$100
6,468Miles258-325 Miles/$100
▼
Economy (Booking Class Y)
$4,667
21,086FLY ON Points452 FLY ON Points/$100
16,174Miles347 Miles/$100
▼
Business (Booking Class X)
$5,067
15,238FLY ON Points301 FLY ON Points/$100
11,320Miles223 Miles/$100
▼
Business (Booking Class I, I, X, X)
$5,567 - $7,567
20,597FLY ON Points272-370 FLY ON Points/$100
15,768Miles208-283 Miles/$100
▼
SEASeattle → NRTNarita → SINSingapore(19.9h+)SINSingapore → HNDHaneda → SEASeattle(23.9h+)
16,174 mi
Economy (Booking Class O, O, Q, Q)
$1,394 - $1,654
5,844FLY ON Points353-419 FLY ON Points/$100
4,850Miles293-348 Miles/$100
▼
Economy (Booking Class S)
$1,999 - $2,159
11,342FLY ON Points525-567 FLY ON Points/$100
8,086Miles375-405 Miles/$100
▼
Economy (Booking Class Y)
$4,675
21,086FLY ON Points451 FLY ON Points/$100
16,174Miles346 Miles/$100
▼
Business (Booking Class X)
$5,075 - $7,075
15,238FLY ON Points215-300 FLY ON Points/$100
11,320Miles160-223 Miles/$100
▼
Business (Booking Class I)
$7,075 - $9,075
25,956FLY ON Points286-367 FLY ON Points/$100
20,216Miles223-286 Miles/$100
▼

FAQ

You can earn between 5,844 and 25,956 FLY ON Points depending on booking class. Economy: 5,844–21,086. Business: 15,238–25,956.

The lowest fare starts at $1,394. Economy from $1,394. Business from $5,067.

Economy class offers better FLY ON Points per cost. Economy: up to 567.4, Business: up to 370.0.

Yes. Japan Airlines flights can also be credited to: Tier Points (BA), Loyalty Points (AA).

The shortest flight time is approximately 19.9h.

Singapore on other airlines

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Other destinations from Seattle

ManilaDelhiBangkokMelbourneTaipeiJakarta
OriginSEASeattleChange
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DestinationSINSingapore
Destinations (14)
Airline