What route does UA863 fly?

United Airlines flight UA863 operates from SFO (San Francisco International Airport) to SYD (Sydney Kingsford Smith International Airport), connecting San Francisco and Sydney (Mascot).

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.

UA863 Seat Map SFO → SYD

United Airlines Boeing 777 Jan 21, 2026

Filter:

Available Window Aisle Extra Legroom Occupied

View:

100%

Pinch to zoom • Double-tap to zoom in

Main Deck

Economy Class

30D

30E

30F

30G

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

40A

40B

40C

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

44A

44B

44C

44D

44E

44F

44G

44J

44K

44L

45A

45B

45C

45D

45E

45F

45G

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

51D

51E

51F

51G

51K

51L

52A

52B

52D

52E

52F

52G

52K

52L

53D

53E

53F

53G

Get seat alerts

Get Seat Alerts

UA863 Flight Details

Flight Number: UA863

Origin:

(San Francisco International Airport, San Francisco)

Destination:

(Sydney Kingsford Smith International Airport, Sydney (Mascot))

Flight Date: January 21, 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 SYD View United Airlines route map

Aircraft Configuration

Aircraft Details

Seating info & configuration

Airline: United Airlines (UA)
Aircraft: Boeing 777
Seating: Main Deck: 202 seats

Economy: 202

29 51 122

14% Available
Legend: Seat Status

Blocked

Occupied

Standard

Seat Types

Premium

Legroom

Window

Aisle

Features

EXIT Exit Row

LAV Lavatory

GAL Galley

CREW Crew

This Boeing 777 operates United Airlines flight UA863 from San Francisco (SFO) to Sydney (Mascot) (SYD). 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 UA863

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 Window Seats

Seat 52L Economy

Best Aisle Seats

Seat 37D Economy
Seat 37J Economy
Seat 47D Economy

Quietest Seats

Seat 37D Economy
Seat 37J Economy
Seat 37E Economy

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 UA863

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

UA863 United Airlines Seat Map from SFO to SYD - Boeing 777