What aircraft does UA853 use?

United Airlines flight UA853 operates on a Boeing 777-300ER from SFO to TPE.

How long is the UA853 flight?

The estimated flight time for UA853 from SFO to TPE is approximately 13h 29m covering 10,391 km (6,457 miles).

How many seats does this Boeing 777-300ER have?

This United Airlines Boeing 777-300ER has 326 total seats across 2 cabin classes: Business, Economy.

What cabin classes are available on this aircraft?

This Boeing 777-300ER offers 2 cabin classes: Business, Economy. Seat distribution: 60 Business seats, 266 Economy seats.

What route does UA853 fly?

United Airlines flight UA853 operates from SFO (San Francisco International Airport) to TPE (Taiwan Taoyuan International Airport), connecting San Francisco and Taoyuan.

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.

UA853 Seat Map

● On time

United Airlines · Boeing 777 · Wed, 18 Mar 2026

Depart

SFO · San Francisco

13h 29m

6,457 mi

Arrive

TPE · Taoyuan

+ Seat alert

F · First

0/8

J · Business

27/60

Y · Economy

65/266

Filter:

First Business Premium Economy Economy Extra legroom / exit Occupied Blocked

View:

Some cabin classes show aircraft layout only — live seat availability could not be retrieved from the airline for this date.

First · Business · Economy · Rows 1–58

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Get seat alerts

Top picks · Business

Highest-scoring available seats on this aircraft

Score 63 #1

Easy aisle access · Front of cabin (faster service)

Aisle Business

Score 63 #2

Easy aisle access · Front of cabin (faster service)

Aisle Business

Score 63 #3

Easy aisle access · Front of cabin (faster service)

Aisle Business

31F

Score 65 #4

Premium seat · Near wings (smoother ride)

Quiet zone

Get Seat Alerts

UA853 Flight Details

Flight Number: UA853

Origin:

(San Francisco International Airport, San Francisco)

Destination:

(Taiwan Taoyuan International Airport, Taoyuan)

Distance: 10,391 km (6,457 mi)

Est. Duration: 13h 29m

Flight Date: March 18, 2026

Aircraft: Boeing 777

Airline Routes: View United Airlines route map

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Flight Route Map

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Aircraft Configuration

Aircraft Details

Seating info & configuration

Airline: United Airlines (UA)
Aircraft: Boeing 777
Seating: Main Deck: 326 seats

Economy: 266

65 114 87

24% Available

Business: 60

27 33 0

45% 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

This Boeing 777 operates United Airlines flight UA853 from San Francisco (SFO) to Taoyuan (TPE). 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 UA853

Based on legroom, location, and passenger preferences

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Best Aisle Seats

Seat 2G Business
Seat 3D Business
Seat 3G Business

Quietest Seats

Seat 31F Economy
Seat 31E Economy
Seat 31B Economy

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

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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.

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