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 SFO → TPE

United Airlines Boeing 777 Mar 18, 2026

Filter:

Available Window Aisle Extra Legroom Occupied

View:

100%

Pinch to zoom • Double-tap to zoom in

Main Deck

Business Class

10A

10D

10G

10L

11A

11D

11G

11L

12A

12D

12G

12L

15A

15D

15G

15L

16A

16D

16G

16L

17A

17D

17G

17L

18A

18D

18G

18L

Economy Class

30A

30B

30C

30D

30E

30F

30G

30J

30K

30L

31A

31B

31C

31D

31E

31F

31G

31J

31K

31L

32A

32B

32C

32D

32E

32F

32G

32J

32K

32L

33A

33B

33C

33D

33E

33F

33G

33J

33K

33L

34A

34B

34C

34D

34E

34F

34G

34J

34K

34L

35A

35B

35C

35D

35E

35F

35G

35J

35K

35L

36A

36B

36C

36D

36E

36F

36G

36J

36K

36L

37A

37B

37C

37D

37E

37F

37G

37J

37K

37L

38A

38B

38C

38D

38E

38F

38G

38J

38K

38L

39A

39B

39C

39D

39E

39F

39G

39J

39K

39L

40A

40B

40C

40D

40E

40F

40G

40J

40K

40L

41A

41B

41C

41D

41E

41F

41G

41J

41K

41L

42A

42B

42C

42D

42E

42F

42G

42J

42K

42L

43A

43B

43C

43D

43E

43F

43G

43J

43K

43L

45A

45B

45C

45J

45K

45L

46A

46B

46C

46D

46E

46F

46G

46J

46K

46L

47A

47B

47C

47D

47E

47F

47G

47J

47K

47L

48A

48B

48C

48D

48E

48F

48G

48J

48K

48L

49A

49B

49C

49D

49E

49F

49G

49J

49K

49L

50A

50B

50C

50D

50E

50F

50G

50J

50K

50L

51A

51B

51C

51D

51E

51F

51G

51J

51K

51L

52A

52B

52C

52D

52E

52F

52G

52J

52K

52L

53A

53B

53C

53D

53E

53F

53G

53J

53K

53L

54A

54B

54C

54D

54E

54F

54G

54J

54K

54L

55A

55B

55C

55D

55E

55F

55G

55J

55K

55L

56A

56B

56D

56E

56F

56G

56K

56L

57A

57B

57D

57E

57F

57G

57K

57L

58D

58E

58F

58G

Get seat alerts

Get Seat Alerts

UA853 Flight Details

Flight Number: UA853

Origin:

(San Francisco International Airport, San Francisco)

Destination:

(Taiwan Taoyuan International Airport, Taoyuan)

Flight Date: March 18, 2026

Aircraft: Boeing 777

Airline Routes: View United Airlines route map

Change Flight Date

Sign Up Free to Unlock

Best seat recommendations
1 free seatmap search per month
Full seat details and legroom info

Already have an account? Sign in

Want Live Seat Availability?

Subscribe for real-time seat availability and pricing

View Plans

Flight Route Map

Explore More Routes:

View flights from SFO View flights to TPE View United Airlines route map

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

Seat Types

Premium

Legroom

Window

Aisle

Features

EXIT Exit Row

LAV Lavatory

GAL Galley

CREW Crew

United Airlines Boeing 777 seat map layout for flight UA853 from SFO to TPE

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

See Best Seat Recommendations

Create a free account to see which seats have the best legroom, views, and quietest locations.

Already have an account? Sign in

Best Aisle Seats

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

Quietest Seats

Seat 15G Business
Seat 16A Business
Seat 16D Business

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

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.

Passenger Reviews for UA853

Share Your Experience

Earn 1-3 Credits

Help fellow travelers by sharing your experience!

Credit Rewards:

• Basic review: 1 credit
• Detailed review (100+ words): +1 credit
• Add photos: +1 credit

Cabin Class

Seat Number

Overall Rating

Your Review

Word count: 0 +1 credit bonus!

Add Photos (+1 credit)

Upload up to 5 photos (JPG, PNG)

No reviews yet. Be the first to share your experience!

Frequently Asked Questions

UA853 United Airlines Seat Map from SFO to TPE - Boeing 777