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Cathay Pacific · Boeing

Cathay Pacific Business Class on the 777-300ER

From $2,450 · save 62% · a350 fleet: lie-flat reverse herringbone, direct aisle access. 777-300er: rolling retrofit to the all-new aria suite (17 aircraft retrofitted as of this writing, full fleet by late 2027) — un-retrofitted 777-300ers still carry the previous seat.

Quick answers

At a glance

Does Cathay Pacific fly the 777-300ER?

Yes — the Boeing 777-300ER is part of Cathay Pacific's fleet. Cathay Pacific Business Class on this aircraft delivers a350 fleet: lie-flat reverse herringbone, direct aisle access. 777-300er: rolling retrofit to the all-new aria suite (17 aircraft retrofitted as of this writing, full fleet by late 2027) — un-retrofitted 777-300ers still carry the previous seat, with seat width 22 inches and length 82 inches.

What is Cathay Pacific business class like on the 777-300ER?

Cathay Pacific Business Class: A350 fleet: lie-flat reverse herringbone, direct aisle access. 777-300ER: rolling retrofit to the all-new Aria Suite (17 aircraft retrofitted as of this writing, full fleet by late 2027) — un-retrofitted 777-300ERs still carry the previous seat. The dominant long-haul widebody for the past two decades. Most carriers operate two cabin generations on this airframe: older 2-3-2 Business (avoid where possible) and newer 1-2-1 sliding-door cabins (Emirates Game Changer, BA Club Suite, Qatar Qsuite, AA Flagship Suite).

How much can I save flying Cathay Pacific on the 777-300ER?

Consolidator fares from $2,450 — about 62% below published retail. You earn full Cathay (unified programme; Asia Miles is the points currency; Marco Polo Club status folded in; further overhaul planned from 2027) miles.

At a glance

Cathay Pacific 777-300ER — quick reference

Cathay Pacific 777-300ER cabin product summary
AircraftBoeing Boeing 777-300ER
Body typeTwin-aisle widebody
Cabin productCathay Pacific Business Class — a350 fleet: lie-flat reverse herringbone, direct aisle access. 777-300er: rolling retrofit to the all-new aria suite (17 aircraft retrofitted as of this writing, full fleet by late 2027) — un-retrofitted 777-300ers still carry the previous seat
Seat dimensionsWidth 22 inches · length 82 inches
Consolidator fare from$2,450 (about 62% below published)
Loyalty programCathay (unified programme; Asia Miles is the points currency; Marco Polo Club status folded in; further overhaul planned from 2027)
Last verified2026-05-03

Cabin product

Cathay Pacific cathay pacific business class on the 777-300ER

Cathay Pacific is a oneworld co-founder flying from its Hong Kong hub to roughly 100 destinations. Business class is mid-transformation: the all-new Aria Suite debuted October 2024 on retrofitted 777-300ERs (17 aircraft so far, full fleet reconfiguration targeted for late 2027) and is now live on select Hong Kong routes to London, San Francisco, Los Angeles, and Vancouver among others. The A350-900/A350-1000 fleet carries its own strong reverse-herringbone product from delivery. The Pier Business Class Lounge at Hong Kong airport — with its signature noodle bar and day suites — remains consistently rated one of the world's best.

About the 777-300ER: The dominant long-haul widebody for the past two decades. Most carriers operate two cabin generations on this airframe: older 2-3-2 Business (avoid where possible) and newer 1-2-1 sliding-door cabins (Emirates Game Changer, BA Club Suite, Qatar Qsuite, AA Flagship Suite).

777-300ER strengths

Why the 777-300ER works for premium cabin

  • Largest commercial twin-engine aircraft — highest seat-count flexibility
  • Newer cabin retrofits (Game Changer, Qsuite, Club Suite) deliver class-leading hardware
  • Strongest range in the 300+ seat category — supports nearly any commercial nonstop route

Caveats

Things to verify before booking 777-300ER

  • Older 2-3-2 Business cabin (still on some routes) is a meaningful step down — center passengers must climb over seatmates
  • Cabin pressurization (8,000 ft equivalent) is higher than newer aircraft — slightly more fatigue on long-haul
  • Always verify cabin generation at booking — same airline, same aircraft type, can have multiple Business products

Cathay Pacific fleet

Other aircraft Cathay Pacific flies

Booking strategy

How to book Cathay Pacific on the 777-300ER

Verify the actual aircraft on your flight

Aircraft type is shown on your booking confirmation but operational substitutions happen — older or newer metal sometimes replaces the scheduled aircraft. Confirm the assigned aircraft 24-48 hours before departure via the airline app or operational status page; if the substitution downgrades cabin product, we can request reseat or recompensation.

Pick the right route for this aircraft

Widebody 777-300ER routes are typically the long-haul flagships — that's where Cathay Pacific concentrates its newest cabin product. The shorter routes within the fleet may use older retrofit configs with smaller seats and fewer amenities.

Time-of-day matters

On overnight long-haul flights, the 777-300ER cabin product directly affects sleep quality. Widebody humidity and noise levels at cruise are notably better than narrow-body equivalents. Departure-time selection (avoiding 4-6am arrivals) compounds the cabin investment.

Loyalty earning

All consolidator fares are regular Cathay Pacific tickets booked under your name — you earn full Cathay (unified programme; Asia Miles is the points currency; Marco Polo Club status folded in; further overhaul planned from 2027) miles, status credits, and elite-tier benefits. Business class typically earns 100-125% of distance flown.

Standard airline page

Or browse the standard Cathay Pacific page

For the full airline guide — cabin details across all fleet types, top routes, lounges, and ratings sources — see the standard Cathay Pacific page. The pricing and consolidator inventory is the same; this page focuses on the 777-300ER-specific cabin context.

Drill deeper

Continue researching this aircraft + airline

FAQ

Frequently asked questions

Common questions about Cathay Pacific cathay pacific business class on the 777-300ER.

Does Cathay Pacific fly the 777-300ER?
Yes — the Boeing 777-300ER is part of Cathay Pacific's fleet. Cathay Pacific Business Class on this aircraft delivers a350 fleet: lie-flat reverse herringbone, direct aisle access. 777-300er: rolling retrofit to the all-new aria suite (17 aircraft retrofitted as of this writing, full fleet by late 2027) — un-retrofitted 777-300ers still carry the previous seat, with seat width 22 inches and length 82 inches.
What is Cathay Pacific business class like on the 777-300ER?
Cathay Pacific Business Class: A350 fleet: lie-flat reverse herringbone, direct aisle access. 777-300ER: rolling retrofit to the all-new Aria Suite (17 aircraft retrofitted as of this writing, full fleet by late 2027) — un-retrofitted 777-300ERs still carry the previous seat. The dominant long-haul widebody for the past two decades. Most carriers operate two cabin generations on this airframe: older 2-3-2 Business (avoid where possible) and newer 1-2-1 sliding-door cabins (Emirates Game Changer, BA Club Suite, Qatar Qsuite, AA Flagship Suite).
How much can I save flying Cathay Pacific on the 777-300ER?
Consolidator fares from $2,450 — about 62% below published retail. You earn full Cathay (unified programme; Asia Miles is the points currency; Marco Polo Club status folded in; further overhaul planned from 2027) miles.
Is the 777-300ER better than other Cathay Pacific aircraft?
The 777-300ER is a widebody with largest commercial twin-engine aircraft — highest seat-count flexibility. Compare with Cathay Pacific's other fleet types if your route offers a choice.
Can I select a specific seat on the 777-300ER?
Yes — most Cathay Pacific fares allow advance seat selection. We pass seat preferences to the airline at booking; certain seats (bulkhead, exit row) may require status or a fee.
Will the 777-300ER be the actual aircraft on my flight?
Aircraft type is shown in the booking confirmation but operational substitutions happen — older or newer metal sometimes replaces the scheduled aircraft. Confirm 24-48 hours before departure; if an undesired substitution downgrades your cabin product, we can request reseat.

Fly Cathay Pacific on the 777-300ER

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