What aircraft does FI631 use?

Icelandair flight FI631 operates on a 76W from KEF to BOS.

How long is the FI631 flight?

The estimated flight time for FI631 from KEF to BOS is approximately 5h 21m covering 3,875 km (2,408 miles).

How many seats does this 76W have?

This Icelandair 76W has 262 total seats across 2 cabin classes: Business, Economy.

What cabin classes are available on this aircraft?

This 76W offers 2 cabin classes: Business, Economy. Seat distribution: 25 Business seats, 237 Economy seats.

What route does FI631 fly?

Icelandair flight FI631 operates from KEF (Keflavik International Airport) to BOS (Logan International Airport), connecting Reykjavík and Boston.

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.

FI631 Seat Map

● On time

Icelandair · Boeing 767-300 Winglets · Wed, 21 Jan 2026

Depart

KEF · Reykjavík

5h 21m

2,408 mi

Arrive

BOS · Boston

+ Seat alert

J · Business

25/25

Y · Economy

220/237

Filter:

First Business Premium Economy Economy Extra legroom / exit Occupied Blocked

View:

Business · Economy · Rows 1–41

100%

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Get seat alerts

Top picks · Economy

Highest-scoring available seats on this aircraft

Score 83 #1

Extra legroom · Window view

Extra legroom

Score 83 #2

Extra legroom · Easy aisle access

Extra legroom

Score 83 #3

Extra legroom · Easy aisle access

Extra legroom

19A

Score 70 #4

Quick exit access · Window view

Exit row

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FI631 Flight Details

Flight Number: FI631

Origin:

(Keflavik International Airport, Reykjavík)

Destination:

(Logan International Airport, Boston)

Distance: 3,875 km (2,408 mi)

Est. Duration: 5h 21m

Flight Date: January 21, 2026

Aircraft: Boeing 767-300 Winglets

Airline Routes: View Icelandair 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: Icelandair (FI)
Aircraft: Boeing 767-300 Winglets
Seating: Main Deck: 262 seats

Economy: 237

220 17 0

93% Available

Business: 25

25 0 0

100% 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

Icelandair Boeing 767-300 Winglets seat map layout for flight FI631 from KEF to BOS — Reference layout

This Boeing 767-300 Winglets operates Icelandair flight FI631 from Reykjavík (KEF) to Boston (BOS). 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 FI631

Based on legroom, location, and passenger preferences

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Best Window Seats

Seat 6A Economy
Seat 6G Economy
Seat 19A Economy

Best Aisle Seats

Seat 7E Economy
Seat 7C Economy
Seat 6F Economy

Best for Legroom

Seat 6A Economy
Seat 6B Economy
Seat 6C Economy

Exit Row Seats

Seat 19A Economy
Seat 19B Economy
Seat 19F Economy

Quietest Seats

Seat 6A Economy
Seat 6B Economy
Seat 6C 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 FI631

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76W Seat Map

Full Icelandair 76W seating chart, cabin layout, and seat reviews.

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More Icelandair Flights

EWR → KEF

KEF → EWR

BOS → KEF

KEF → SEA

YVR → KEF

KEF → SEA

View all Icelandair flights →

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FI631 Seat Map

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FI631 Flight Details

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Seat Configuration Statistics

Aircraft Configuration

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Features

Best Seats on FI631

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Best Window Seats

Best Aisle Seats

Best for Legroom

Exit Row Seats

Quietest Seats

Seat Selection Assistance

Seat Alerts Require Payment

Passenger Reviews for FI631

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76W Seat Map

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