What aircraft does UA7921 use?

United Airlines flight UA7921 operates on a Boeing 787-9 from HAN to NRT.

How long is the UA7921 flight?

The estimated flight time for UA7921 from HAN to NRT is approximately 5h 9m covering 3,720 km (2,311 miles).

How many seats does this Boeing 787-9 have?

This United Airlines Boeing 787-9 has 215 total seats across 2 cabin classes: Economy, Business.

What cabin classes are available on this aircraft?

This Boeing 787-9 offers 2 cabin classes: Economy, Business. Seat distribution: 167 Economy seats, 48 Business seats.

What route does UA7921 fly?

United Airlines flight UA7921 operates from HAN (Noi Bai International Airport) to NRT (Narita International Airport), connecting Hanoi (Soc Son) and Narita.

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.

UA7921 Seat Map

● On time

United Airlines · Boeing 787-9 · Fri, 24 Oct 2025

Depart

HAN · Hanoi (Soc Son)

5h 9m

2,311 mi

Arrive

NRT · Narita

+ Seat alert

J · Business

43/48

Y · Economy

61/167

Filter:

Available Window Aisle Extra legroom Occupied

View:

Economy · Business · Rows 1–36

100%

Pinch to zoom • Double-tap to zoom in

Main Deck

Business Class

1A

1H

2C

2E

2G

2K

3A

3D

3F

3H

4C

4E

4G

4K

5A

5D

5F

5H

6C

6E

6G

6K

7A

7D

7F

7H

8A

8H

9C

9E

9G

9K

10A

10D

10F

10H

11C

11E

11G

11K

12A

12D

12F

12H

13C

13E

13G

13K

Economy Class

15A

15C

15D

15F

15G

15H

15K

16A

16C

16D

16F

16G

16H

16K

17A

17C

17D

17F

17G

17H

17K

20A

20B

20C

20D

20F

20G

20H

20J

20K

21A

21B

21C

21D

21F

21G

21H

21J

21K

22A

22B

22C

22D

22F

22G

22H

22J

22K

23A

23B

23C

23H

23J

23K

24A

24B

24C

24D

24F

24G

24H

24J

24K

25A

25B

25C

25D

25F

25G

25H

25J

25K

26A

26B

26C

26D

26F

26G

26H

26J

26K

27A

27B

27C

27D

27F

27G

27H

27J

27K

28A

28B

28C

28D

28F

28G

28H

28J

28K

29A

29B

29C

29D

29F

29G

29H

29J

29K

30A

30B

30C

30D

30F

30G

30H

30J

30K

31A

31B

31C

31D

31F

31G

31H

31J

31K

32A

32B

32C

32D

32F

32G

32H

32J

32K

33A

33B

33C

33D

33F

33G

33H

33J

33K

34A

34B

34C

34D

34F

34G

34H

34J

34K

35A

35B

35C

35D

35F

35G

35H

35J

35K

36A

36C

36D

36F

36G

Get seat alerts

Top picks · Business

Highest-scoring available seats on this aircraft

Score 68 #1

Easy aisle access · Near wings (smoother ride)

Aisle Business

Score 68 #2

Easy aisle access · Near wings (smoother ride)

Aisle Business

Score 68 #3

Easy aisle access · Near wings (smoother ride)

Aisle Business

15K

Score 68 #4

Window view · Near wings (smoother ride)

Window

Get Seat Alerts

UA7921 Flight Details

Flight Number: UA7921

Origin:

(Noi Bai International Airport, Hanoi (Soc Son))

Destination:

(Narita International Airport, Narita)

Distance: 3,720 km (2,311 mi)

Est. Duration: 5h 9m

Flight Date: October 24, 2025

Aircraft: Boeing 787-9

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 HAN View flights to NRT View United Airlines route map

Aircraft Configuration

Aircraft Details

Seating info & configuration

Airline: United Airlines (UA)
Aircraft: Boeing 787-9
Seating: Main Deck: 215 seats

Economy: 167

61 22 84

37% Available

Business: 48

43 4 1

90% 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 787-9 seat map layout for flight UA7921 from HAN to NRT — Reference layout

This Boeing 787-9 operates United Airlines flight UA7921 from Hanoi (Soc Son) (HAN) to Narita (NRT). 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 UA7921

Based on legroom, location, and passenger preferences

Members only

See Best Seat Recommendations

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

Already a member? Sign in

Best Window Seats

Seat 15K Economy
Seat 16A Economy
Seat 16K Economy

Best Aisle Seats

Seat 4G Business
Seat 4E Business
Seat 4C Business

Quietest Seats

Seat 4G Business
Seat 4E Business
Seat 4C Business

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

Compare

Long-press seats to add them for comparison

Compare seats

Click and hold on seats to add them for comparison

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.

Reviews

Passenger Reviews for UA7921

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.

Boeing 787-9 Seat Map

Full United Airlines Boeing 787-9 seating chart, cabin layout, and seat reviews.

View seat map

More United Airlines Flights

UA143-2025-04-23-2025-06-05

DEN → NRT

UA2486-2025-05-19-2025-08-04

IAH → ORD

SYD → LAX

SFO → SIN

EWR → DUB

FRA → PHL

View all United Airlines flights →

Questions

Frequently Asked Questions

Upgrade

UA7921 Seat Map

Main Deck

Business Class

Economy Class

Get Seat Alerts

UA7921 Flight Details

Sign Up Free to Unlock

Live Flight Status

Flight Route Map

Explore More Routes:

Seat Configuration Statistics

Aircraft Configuration

Aircraft Details

Seat Status

Seat Types

Features

Best Seats on UA7921

See Best Seat Recommendations

Best Window Seats

Best Aisle Seats

Quietest Seats

Seat Selection Assistance

Seat Alerts Require Payment

Passenger Reviews for UA7921

Share Your Experience

Boeing 787-9 Seat Map

More United Airlines Flights

Frequently Asked Questions

Get live seat data for this route