What seat patterns are listed for Economy rows on Air Canada AC856?

Economy’s usual layout is 3-4-3. Rows 30 and 50 are 0-4-0, rows 44-45 are 0-0-3, and rows 61-64 are 2-4-2.

What is the average seat rating on AC856?

The 400 seats on the Air Canada Boeing 777-300ER flying AC856 average 5.6 out of 10 for comfort. By cabin: Signature 5.8, Premium Economy 5.8 and Economy 5.6. 8 seats rate Good or better, and 59 rate below average.

Which seats are marked as exit-row seats on Air Canada AC856?

The exit-row seats are 31A, 31B, 31C, 31H, 31J, 31K, 51A, 51B, 51C, 51H, 51J, and 51K.

What route does AC856 fly?

AC856 is the Air Canada flight from Toronto (YYZ, Toronto Pearson International) to London (LHR, London Heathrow), flown on the Boeing 777-300ER. It takes about 7h 50m for 5,707 km (3,546 miles), estimated from the great-circle distance.

Which Air Canada AC856 seats are listed with misaligned windows?

In Signature, the listed seats are 7A and 7K. In Premium Economy, they are 14A and 14K; in Economy, they are 20A, 20K, 23A, 23K, 31A, 31K, 51A, and 51K.

Can I check real-time seat availability on AC856?

Yes. Open AC856 in the live seat map and choose your travel date to see which seats are still open on that day, each coloured by its comfort score.

How many seats are listed in each cabin on Air Canada AC856?

Signature has 40 seats, Premium Economy has 24 seats, and Economy has 336 seats, for 400 seats total.

AC856 seat map

Air Canada Boeing 777-300ER, 3 classes, from Toronto (YYZ) to London (LHR)

Departs: Toronto (YYZ); Toronto Pearson International, Canada
Arrives: London (LHR); London Heathrow, United Kingdom
Flight time: About 7h 50m; Estimated from 5,707 km (3,546 miles)
Aircraft: Boeing 777-300ER; 3 classes, 1 deck

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AC856 is the Air Canada flight from Toronto (YYZ) to London (LHR), scheduled on a Boeing 777-300ER with 400 seats in 3 classes: 40 in Signature, 24 in Premium Economy and 336 in Economy. The best seats are 2A in Signature, 13A in Premium Economy and 51C in Economy. Avoid row 64 at the back of Economy: limited recline, near the lavatories and the galley.

AC856 interactive seat map

Select a seat for its comfort score and what to watch out for. Colours show comfort, not availability.

Seat scores on AC856

Covers all 400 seats on the aircraft.

Excellent9.0+0 seats
Good7.0 to 8.98 seats
Fair5.0 to 6.9333 seats
Below average3.0 to 4.931 seats
Poorunder 3.028 seats

Scores weigh legroom, recline, window position and distance from galleys, lavatories and exits. Seat-map glossary

Best in Signature
Fair6.0 / 10
Window seat
Best in Premium Economy
Fair6.0 / 10
Window seat
Best in Economy
Good8.8 / 10
Aisle seat, extra legroom, exit row, no floor storage, tray in armrest

Seat data verified November 9, 2026. How we verify seat data

Which plane is AC856 on?

The aircraft and layout our seat map for AC856 comes from.

Date	Tue, Nov 10
Aircraft	Boeing 777-300ER
Layout	40J, 24W, 336Y (400 seats)

Airlines can swap planes close to departure, so confirm the aircraft at check-in.

AC856 airports

Where the flight leaves from and lands.

Departure: Toronto Pearson International YYZ; Toronto, Canada
Arrival: London Heathrow LHR; London, United Kingdom

Seats by cabin on AC856

How the 400 seats on this aircraft split by cabin.

Signature40 seats
Premium Economy24 seats
Economy336 seats

Open seats change daily. Check live availability for your date

Best seats on AC856

The top seats in every cabin, the ones to skip, and the pick for what matters to you.

Best seats on every aircraft

Comfort score out of 10Excellent9.0+Good7.0 to 8.9Fair5.0 to 6.9Below average3.0 to 4.9Poorunder 3.0

Signature

Rows 1 to 11, 40 seats

Top picks

Window seatFair6.0 / 10
Window seatFair6.0 / 10
Window seatFair6.0 / 10

Seats to avoid

Window seat, near galley, misaligned windowBelow average4.2 / 10
Window seat, near galley, misaligned windowBelow average4.2 / 10
Aisle seat, near lavatory, near galleyBelow average4.2 / 10

Best for

Window
Aisle
Sleep
Couples

Premium Economy

Rows 12 to 14, 24 seats

Top picks

Window seatFair6.0 / 10
Window seatFair6.0 / 10
Aisle seatFair6.0 / 10

Seats to avoid

Window seat, misaligned windowBelow average3.4 / 10
Window seat, misaligned windowBelow average3.4 / 10

Best for

Window
Aisle
Sleep
Couples

Economy

Rows 18 to 64, 336 seats

Top picks

Aisle seat, extra legroom, exit row, no floor storage, tray in armrestGood8.8 / 10
Aisle seat, extra legroom, exit row, no floor storage, tray in armrestGood8.8 / 10
Middle seat, extra legroom, exit row, no floor storage, tray in armrestGood8.8 / 10

Seats to avoid

Window seat, limited recline, near lavatoryPoor2.5 / 10
Window seat, limited recline, near lavatoryPoor2.5 / 10
Middle seat, limited recline, near lavatoryPoor2.5 / 10

Best for

Window
Aisle
Extra legroom
Sleep
Couples

Row-by-row notes for AC856

The rows worth knowing about before you choose, from the Boeing 777-300ER cabin layout. New to terms like bulkhead or pitch? See the seat-map glossary.

Row 1Signature. First row of the cabin: near the galley.
Row 11Signature. Last row of the cabin.
Row 12Premium Economy. First row of the cabin: no floor storage.
Row 14Premium Economy. Last row of the cabin.
Row 18Economy. First row of the cabin: extra legroom; no floor storage and tray table in the armrest.
Row 23Economy. Limited recline, near the lavatories.
Row 30Economy. Extra legroom; near the lavatories, no floor storage and tray table in the armrest.
Row 31Economy. Exit row: extra legroom; near the lavatories, no floor storage and tray table in the armrest.
Row 43Economy. Limited recline, near the lavatories and the galley.
Row 45Economy. Limited recline, near the galley.
Row 51Economy. Exit row: extra legroom; no floor storage and tray table in the armrest.
Row 64Economy. Last row of the cabin: limited recline, near the lavatories and the galley.

Cabins on AC856

Layout, legroom and amenities in each class on the Air Canada Boeing 777-300ER.

Compare Wi-Fi and entertainment across airlines

Signature

Rows 1 to 11, 40 seats

Layout: 1-2-1
Pitch: 78"
Width: 21"
Recline: 180°

Lie-flat seat.

Wi-Fi enabled
AC/USB power
Free on demand entertainment

Premium Economy

Rows 12 to 14, 24 seats

Layout: 2-4-2
Pitch: 37"
Width: 20"
Recline: 8"

Standard seat with 8" of recline.

Wi-Fi enabled
AC/USB power
Free on demand entertainment

Economy

Rows 18 to 64, 336 seats

Layout: 3-4-3
Pitch: 31"
Width: 17"
Recline: 6"

Standard seat with 6" of recline. Sold as Economy Preferred and Economy.

Wi-Fi enabled
AC/USB power
Free on demand entertainment

AC856 questions

Questions about AC856

The aircraft, the cabins and the seats on this flight, answered from its seat map data.

The highest-rated seat on AC856 is 51C in Economy, with a comfort score of 8.8 out of 10: aisle seat, extra legroom, exit row, no floor storage, tray in armrest. In the other cabins, the best seats are 2A in Signature (6.0) and 13A in Premium Economy (6.0).

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