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Flights from Seattle to Boston

Compare 21 flight options on JAL

* Based on 506 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$332.00
Flight Time5h 26m - 9h 50m
StopsNonstop available

Fares by Cabin Class

Economy$332 ~ $2,835
First$502 ~ $2,339

Available Route Options

21 different routing options available for this route

Outbound/ReturnFlight TimeStopsEconomyFirst
OutboundSEA Seattle → BOS Boston
ReturnBOS Boston → SEA Seattle
5h 26m6h 26m
NonstopNonstop
$412~$518~
OutboundSEA Seattle → PHL → BOS Boston
ReturnBOS Boston → SEA Seattle
7h 6m6h 26m
1stopNonstop
$462~-
OutboundSEA Seattle → BOS Boston
ReturnBOS Boston → ORD Chicago → SEA Seattle
5h 26m8h 28m
Nonstop1stop
$453~$502~
OutboundSEA Seattle → ORD Chicago → BOS Boston
ReturnBOS Boston → SEA Seattle
7h 28m6h 26m
1stopNonstop
$453~$1,297~
OutboundSEA Seattle → BOS Boston
ReturnBOS Boston → PHL → SEA Seattle
5h 26m8h 40m
Nonstop1stop
$553~$647~
OutboundSEA Seattle → CLT → BOS Boston
ReturnBOS Boston → SEA Seattle
8h 17m6h 26m
1stopNonstop
$542~-
OutboundSEA Seattle → BOS Boston
ReturnBOS Boston → CLT → SEA Seattle
5h 26m9h 38m
Nonstop1stop
-$1,418~
OutboundSEA Seattle → BOS Boston
ReturnBOS Boston → DFW Dallas → SEA Seattle
5h 26m9h 50m
Nonstop1stop
-$1,418~

+13 more routing options available

Book on Japan Airlines Official Website→
Search real-time Seattle to Boston 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$332 - $2,8351,658 - 14,175499 - 5001,658 - 14,175499 - 500
First$502 - $2,3392,510 - 11,694500 - 5002,510 - 11,694500 - 500
Learn more about JAL Mileage Bank →

Flight Itineraries & Booking Class Details

Browse 21 available flight options from Seattle to Boston. 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 → BOSBoston(5.4h+)BOSBoston → SEASeattle(6.4h+)
4,978 mi
Economy (Booking Class O, N)
$412 - $502
2,059 - 2,508FLY ON Points500-500 FLY ON Points/$100
2,059 - 2,508Miles500-500 Miles/$100
▼
Economy (Booking Class Q, N)
$447 - $537
2,233 - 2,683FLY ON Points500 FLY ON Points/$100
2,233 - 2,683Miles500 Miles/$100
▼
Economy (Booking Class N, S)
$469 - $568
2,346 - 2,841FLY ON Points500 FLY ON Points/$100
2,346 - 2,841Miles500 Miles/$100
▼
First (Booking Class S, K)
$518 - $1,913
2,591 - 9,567FLY ON Points500-500 FLY ON Points/$100
2,591 - 9,567Miles500-500 Miles/$100
▼
Economy (Booking Class V)
$617 - $727
3,086 - 3,633FLY ON Points500-500 FLY ON Points/$100
3,086 - 3,633Miles500-500 Miles/$100
▼
Economy (Booking Class L, V)
$727 - $787
3,633 - 3,933FLY ON Points500 FLY ON Points/$100
3,633 - 3,933Miles500 Miles/$100
▼
First (Booking Class K)
$1,913 - $2,339
9,567 - 11,694FLY ON Points500-500 FLY ON Points/$100
9,567 - 11,694Miles500-500 Miles/$100
▼
SEASeattle → PHL → BOSBoston(7.1h+)BOSBoston → SEASeattle(6.4h+)
5,141 mi
Economy (Booking Class N)
$462 - $1,786
2,307 - 8,931FLY ON Points499-500 FLY ON Points/$100
2,307 - 8,931Miles499-500 Miles/$100
▼
Economy (Booking Class G, G, N)
$508 - $1,843
2,540 - 9,216FLY ON Points500-500 FLY ON Points/$100
2,540 - 9,216Miles500-500 Miles/$100
▼
Economy (Booking Class L, L, N)
$607 - $1,931
3,032 - 9,656FLY ON Points500-500 FLY ON Points/$100
3,032 - 9,656Miles500-500 Miles/$100
▼
Economy (Booking Class K, K, N)
$712 - $2,463
3,557 - 12,316FLY ON Points500-500 FLY ON Points/$100
3,557 - 12,316Miles500-500 Miles/$100
▼
Economy (Booking Class B, B, V)
$1,042 - $1,102
5,207 - 5,507FLY ON Points500 FLY ON Points/$100
5,207 - 5,507Miles500 Miles/$100
▼
SEASeattle → BOSBoston(5.4h+)BOSBoston → ORDChicago → SEASeattle(8.5h+)
5,074 mi
Economy (Booking Class N, V, V)
$453 - $663
2,265 - 3,316FLY ON Points500-500 FLY ON Points/$100
2,265 - 3,316Miles500-500 Miles/$100
▼
First (Booking Class S, M, M)
$502 - $1,611
2,510 - 8,057FLY ON Points500-500 FLY ON Points/$100
2,510 - 8,057Miles500-500 Miles/$100
▼
Economy (Booking Class O, M, M)
$597 - $637
2,982 - 3,182FLY ON Points500 FLY ON Points/$100
2,982 - 3,182Miles500 Miles/$100
▼
Economy (Booking Class Q, M, M)
$632 - $672
3,157 - 3,357FLY ON Points500-500 FLY ON Points/$100
3,157 - 3,357Miles500-500 Miles/$100
▼
Economy (Booking Class V, H, H)
$652 - $922
3,260 - 4,607FLY ON Points500-500 FLY ON Points/$100
3,260 - 4,607Miles500-500 Miles/$100
▼
Economy (Booking Class L, H, H)
$982
4,907FLY ON Points500 FLY ON Points/$100
4,907Miles500 Miles/$100
▼
First (Booking Class K, M, M)
$1,783 - $2,108
8,915 - 10,541FLY ON Points500 FLY ON Points/$100
8,915 - 10,541Miles500 Miles/$100
▼
SEASeattle → ORDChicago → BOSBoston(7.5h+)BOSBoston → SEASeattle(6.4h+)
5,074 mi
Economy (Booking Class N, N, S)
$453 - $1,788
2,265 - 8,940FLY ON Points500 FLY ON Points/$100
2,265 - 8,940Miles500 Miles/$100
▼
Economy (Booking Class V, V, N)
$542 - $1,891
2,707 - 9,455FLY ON Points499-500 FLY ON Points/$100
2,707 - 9,455Miles499-500 Miles/$100
▼
Economy (Booking Class L, L, N)
$598 - $1,906
2,990 - 9,531FLY ON Points500-500 FLY ON Points/$100
2,990 - 9,531Miles500-500 Miles/$100
▼
Economy (Booking Class M, M, N)
$672 - $1,623
3,357 - 8,115FLY ON Points500-500 FLY ON Points/$100
3,357 - 8,115Miles500-500 Miles/$100
▼
Economy (Booking Class K, K, V)
$802 - $862
4,007 - 4,307FLY ON Points500-500 FLY ON Points/$100
4,007 - 4,307Miles500-500 Miles/$100
▼
First (Booking Class S, N, S)
$1,297 - $1,347
6,486 - 6,736FLY ON Points500 FLY ON Points/$100
6,486 - 6,736Miles500 Miles/$100
▼
First (Booking Class Q, V, K)
$1,786
8,931FLY ON Points500 FLY ON Points/$100
8,931Miles500 Miles/$100
▼
SEASeattle → BOSBoston(5.4h+)BOSBoston → PHL → SEASeattle(8.7h+)
5,141 mi
Economy (Booking Class N, V, V)
$553 - $703
2,765 - 3,516FLY ON Points500-500 FLY ON Points/$100
2,765 - 3,516Miles500-500 Miles/$100
▼
First (Booking Class S, V, V)
$647 - $1,508
3,236 - 7,539FLY ON Points500-500 FLY ON Points/$100
3,236 - 7,539Miles500-500 Miles/$100
▼
Economy (Booking Class V, B, B)
$652 - $1,042
3,260 - 5,207FLY ON Points500-500 FLY ON Points/$100
3,260 - 5,207Miles500-500 Miles/$100
▼
Economy (Booking Class O, H, H)
$757
3,782FLY ON Points500 FLY ON Points/$100
3,782Miles500 Miles/$100
▼
Economy (Booking Class Q, H, H)
$792
3,957FLY ON Points500 FLY ON Points/$100
3,957Miles500 Miles/$100
▼
Economy (Booking Class L, B, B)
$1,102
5,507FLY ON Points500 FLY ON Points/$100
5,507Miles500 Miles/$100
▼
First (Booking Class K, V, V)
$1,883 - $1,933
9,413 - 9,666FLY ON Points500-500 FLY ON Points/$100
9,413 - 9,666Miles500-500 Miles/$100
▼
SEASeattle → CLT → BOSBoston(8.3h+)BOSBoston → SEASeattle(6.4h+)
5,492 mi
Economy (Booking Class V, V, N)
$542 - $632
2,707 - 3,157FLY ON Points499-500 FLY ON Points/$100
2,707 - 3,157Miles499-500 Miles/$100
▼
Economy (Booking Class K, K, V)
$802 - $2,036
4,007 - 10,181FLY ON Points500-500 FLY ON Points/$100
4,007 - 10,181Miles500-500 Miles/$100
▼
Economy (Booking Class B, B, V)
$1,042 - $1,102
5,207 - 5,507FLY ON Points500 FLY ON Points/$100
5,207 - 5,507Miles500 Miles/$100
▼
SEASeattle → BOSBoston(5.4h+)BOSBoston → CLT → SEASeattle(9.6h+)
5,492 mi
First (Booking Class S, G, G)
$1,418
7,089FLY ON Points500 FLY ON Points/$100
7,089Miles500 Miles/$100
▼
First (Booking Class K, G, G)
$1,843
9,215FLY ON Points500 FLY ON Points/$100
9,215Miles500 Miles/$100
▼
SEASeattle → BOSBoston(5.4h+)BOSBoston → DFWDallas → SEASeattle(9.8h+)
5,708 mi
First (Booking Class S, L, L)
$1,418 - $1,508
7,089 - 7,539FLY ON Points500 FLY ON Points/$100
7,089 - 7,539Miles500 Miles/$100
▼
First (Booking Class K, L, L)
$1,843 - $1,933
9,215 - 9,666FLY ON Points500-500 FLY ON Points/$100
9,215 - 9,666Miles500-500 Miles/$100
▼
SEASeattle → DFWDallas → BOSBoston(8.9h+)BOSBoston → SEASeattle(6.4h+)
5,708 mi
Economy (Booking Class V, V, N)
$542 - $632
2,707 - 3,157FLY ON Points499-500 FLY ON Points/$100
2,707 - 3,157Miles499-500 Miles/$100
▼
SEASeattle → PHL → BOSBoston(7.1h+)BOSBoston → ORDChicago → SEASeattle(8.5h+)
5,237 mi
Economy (Booking Class G, G, N, N)
$387 - $1,938
1,933 - 9,690FLY ON Points500-500 FLY ON Points/$100
1,933 - 9,690Miles500-500 Miles/$100
▼
Economy (Booking Class N, N, M, M)
$546 - $2,048
2,731 - 10,241FLY ON Points500-500 FLY ON Points/$100
2,731 - 10,241Miles500-500 Miles/$100
▼
Economy (Booking Class L, L, M, M)
$691 - $2,193
3,456 - 10,965FLY ON Points500-500 FLY ON Points/$100
3,456 - 10,965Miles500-500 Miles/$100
▼
Economy (Booking Class K, K, M, M)
$896 - $2,835
4,481 - 14,175FLY ON Points500-500 FLY ON Points/$100
4,481 - 14,175Miles500-500 Miles/$100
▼
Economy (Booking Class B, B, H, H)
$1,296 - $1,476
6,481 - 7,381FLY ON Points500 FLY ON Points/$100
6,481 - 7,381Miles500 Miles/$100
▼

FAQ

You can earn between 1,658 and 14,175 Loyalty Points depending on booking class. Economy: 1,658–14,175. First: 2,510–11,694.

The lowest fare starts at $332. Economy from $332. First from $502.

Yes. American Airlines flights can also be credited to: FLY ON Points (JAL), Tier Points (BA).

The shortest flight time is approximately 5.4h.

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Other destinations from Seattle

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OriginSEASeattleChange
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DestinationBOSBoston
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