What aircraft does JL21 use?

Japan Airlines Domestic flight JL21 operates on a Boeing 787-8 from HND to PEK.

How long is the JL21 flight?

The estimated flight time for JL21 from HND to PEK is approximately 3h 7m covering 2,092 km (1,300 miles).

What route does JL21 fly?

Japan Airlines Domestic flight JL21 operates from HND (Tokyo Haneda International Airport) to PEK (Beijing Capital International Airport), connecting Tokyo and Beijing.

How do I choose the best seat?

The best seat depends on your priorities. For extra legroom, choose seats near emergency exits or bulkhead rows. For quick boarding/deplaning, select seats near the front. Avoid seats near lavatories or galleys if you prefer a quieter flight. Window seats offer views and a wall to lean against, while aisle seats provide easier access to move around.

What do the different seat colors mean?

Green seats are typically available for selection, red seats are occupied or blocked, yellow/orange seats may have restrictions or extra fees, and blue seats often indicate premium or preferred seating with additional charges. Hover over any seat to see specific details and pricing.

Can I change my seat after booking?

Yes, most airlines allow seat changes after booking, though fees may apply depending on your fare type and desired seat. You can typically change seats through the airline's website, mobile app, or by calling customer service. Some seats become available closer to departure as the airline releases blocked inventory.

When is the best time to select seats?

The best time varies by strategy. Book immediately after purchasing your ticket for the widest selection, or wait until 24 hours before departure when airlines often release blocked premium seats. For popular routes, early selection is recommended. Our seat alerts can notify you when preferred seats become available.

Are the seat maps updated in real-time?

Our flight seat maps are updated regularly throughout the day to reflect current availability. However, seat availability can change rapidly, especially close to departure. We recommend checking the airline's official website for the most up-to-date information when making your final selection.

What if my preferred seat isn't available?

You can also check back periodically as seats often open up closer to departure when other passengers make changes or when the airline releases additional inventory.

JL21 Seat Map

● On time

Japan Airlines Domestic · Boeing 787-8 · Sat, 28 Feb 2026

Depart

HND · Tokyo

3h 7m

1,300 mi

Arrive

PEK · Beijing

+ Seat alert

J · Business

25/30

Y · Economy

142/156

Filter:

First Business Premium Economy Economy Extra legroom / exit Occupied Blocked

View:

Business · Economy · Rows 1–55

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Get seat alerts

Top picks · Economy

Highest-scoring available seats on this aircraft

45A

Score 60 #1

Quick exit access · Window view

Extra legroom

45C

Score 60 #2

Quick exit access · Easy aisle access

Extra legroom

45H

Score 60 #3

Quick exit access · Easy aisle access

Extra legroom

21C

Score 68 #4

Easy aisle access · Near wings (smoother ride)

Aisle

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JL21 Flight Details

Flight Number: JL21

Origin:

(Tokyo Haneda International Airport, Tokyo)

Destination:

(Beijing Capital International Airport, Beijing)

Distance: 2,092 km (1,300 mi)

Est. Duration: 3h 7m

Flight Date: February 28, 2026

Aircraft: Boeing 787-8

Airline Routes: View Japan Airlines Domestic route map

Award Availability: Check award seats on AwardTravelFinder

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Flight Route Map

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Aircraft Configuration

Aircraft Details

Seating info & configuration

Airline: Japan Airlines Domestic (JL)
Aircraft: Boeing 787-8
Seating: Main Deck: 186 seats

Economy: 156

142 0 14

91% Available

Business: 30

25 0 5

83% Available
Legend: Seat Status

Blocked

Occupied

Standard

Cabin Classes

First

Business

Premium Economy

Economy

Extra legroom / exit

Features

Exit door

WC Lavatory

GALLEY Galley

CREW Crew area

Japan Airlines Domestic Boeing 787-8 seat map layout for flight JL21 from HND to PEK — Reference layout

This Boeing 787-8 operates Japan Airlines Domestic flight JL21 from Tokyo (HND) to Beijing (PEK). Browse the interactive seat map above to find the best seats for your journey, view real passenger reviews, and explore detailed cabin configurations to make an informed decision for your flight.

Best Seats on JL21

Based on legroom, location, and passenger preferences

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Best Window Seats

Seat 24K Economy
Seat 24A Economy
Seat 7A Business

Best Aisle Seats

Seat 21C Economy
Seat 20H Economy
Seat 20G Economy

Best for Legroom

Seat 45A Economy
Seat 45C Economy
Seat 45H Economy

Exit Row Seats

Seat 45A Economy
Seat 45C Economy
Seat 45H Economy

Quietest Seats

Seat 24K Economy
Seat 21K Economy
Seat 21H Economy

Recommendations based on seat characteristics, cabin position, and proximity to facilities. Availability may vary by date.

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Seat Selection Assistance

Seat Alerts Require Payment

Seat alerts are available to users with a paid plan or credits. This feature monitors seat availability and notifies you when your preferred seats become available.

Reviews

Passenger Reviews for JL21

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Boeing 787-8 Seat Map

Full Japan Airlines Domestic Boeing 787-8 seating chart, cabin layout, and seat reviews.

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JL21 Seat Map

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JL21 Flight Details

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Seat Configuration Statistics

Aircraft Configuration

Aircraft Details

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Features

Best Seats on JL21

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Best Window Seats

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Best for Legroom

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Quietest Seats

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Passenger Reviews for JL21

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Boeing 787-8 Seat Map

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