What aircraft does DL8402 use?

Delta Air Lines flight DL8402 operates on a Airbus A350-900 from SEA to CDG.

How long is the DL8402 flight?

The estimated flight time for DL8402 from SEA to CDG is approximately 10h 34m covering 8,049 km (5,002 miles).

Does DL8402 have WiFi?

Yes, Delta Air Lines flight DL8402 offers WiFi onboard provided by Viasat.

How many seats does this Airbus A350-900 have?

This Delta Air Lines Airbus A350-900 has 292 total seats across 3 cabin classes: Business, Premium Economy, Economy.

What cabin classes are available on this aircraft?

This Airbus A350-900 offers 3 cabin classes: Business, Premium Economy, Economy. Seat distribution: 48 Business seats, 32 Premium Economy seats, 212 Economy seats.

What route does DL8402 fly?

Delta Air Lines flight DL8402 operates from SEA (Seattle–Tacoma International Airport) to CDG (Charles de Gaulle International Airport), connecting Seattle and Paris (Roissy-en-France, Val-d'Oise).

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.

DL8402 Seat Map

● On time

Delta Air Lines · Airbus A350-900 · Sat, 25 Oct 2025

Depart

SEA · Seattle

10h 34m

5,002 mi

Arrive

CDG · Paris (Roissy-en-France, Val-d'Oise)

+ Seat alert

F · First

0/40

J · Business

13/48

W · Premium Economy

5/32

Y · Economy

59/212

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 · Premium · Economy · Rows 1–45

100%

Pinch to zoom • Double-tap to zoom in

Business

Premium Economy

First

Economy

Business

Premium Economy

First

Economy

A

D

H

L

A

D

H

L

A

D

H

L

A

D

H

L

A

D

H

L

A

D

H

L

A

D

H

L

A

D

H

L

A

D

H

L

A

D

H

L

A

D

H

L

A

D

H

L

A

B

D

E

G

H

K

L

A

B

D

E

G

H

K

L

A

B

D

E

G

H

K

L

A

B

D

E

G

H

K

L

A

B

D

E

F

G

H

J

A

B

D

E

F

G

H

J

A

B

D

E

F

G

H

J

A

B

D

E

F

G

H

J

A

B

D

E

F

G

H

J

A

B

C

D

E

H

J

K

L

A

B

C

D

E

H

J

K

L

A

B

C

D

E

H

J

K

L

A

B

C

D

E

H

J

K

L

A

B

C

D

E

H

J

K

L

A

B

C

D

E

H

J

K

L

A

B

C

D

E

H

J

K

L

A

B

C

D

E

H

J

K

L

A

B

C

D

E

H

J

K

L

A

B

C

D

E

H

J

K

L

A

B

C

D

E

H

J

K

L

A

B

C

D

E

H

J

K

L

A

B

C

D

E

H

J

K

L

A

B

C

D

E

H

J

K

L

A

B

C

D

E

H

J

K

L

A

B

C

D

E

H

J

K

L

A

B

C

D

E

H

J

K

L

A

B

C

D

E

H

J

K

L

A

B

C

D

E

H

J

K

L

A

B

C

D

E

H

J

K

L

A

B

C

D

E

H

J

K

L

A

B

C

D

E

H

J

K

L

A

B

C

D

E

H

J

K

L

A

B

D

E

H

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

10D

Score 68 #2

Easy aisle access · Near wings (smoother ride)

Aisle Business

10H

Score 68 #3

Easy aisle access · Near wings (smoother ride)

Aisle Business

15A

Score 65 #4

Window view · Near wings (smoother ride)

Window Premium Economy

Get Seat Alerts

DL8402 Flight Details

Flight Number: DL8402

Origin:

(Seattle–Tacoma International Airport, Seattle)

Destination:

(Charles de Gaulle International Airport, Paris (Roissy-en-France, Val-d'Oise))

Distance: 8,049 km (5,002 mi)

Est. Duration: 10h 34m

Flight Date: October 25, 2025

Aircraft: Airbus A350-900

In-Flight WiFi: Viasat (verified)

Airline Routes: View Delta Air Lines 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 SEA View flights to CDG View Delta Air Lines route map

Aircraft Configuration

Aircraft Details

Seating info & configuration

Airline: Delta Air Lines (DL)
Aircraft: Airbus A350-900
Seating: Main Deck: 292 seats

Economy: 212

59 135 18

28% Available

Premium Economy: 32

5 27 0

16% Available

Business: 48

13 35 0

27% 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 Airbus A350-900 operates Delta Air Lines flight DL8402 from Seattle (SEA) to Paris (Roissy-en-France, Val-d'Oise) (CDG). 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 DL8402

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 15A Premium Economy
Seat 36L Economy
Seat 40A Economy

Best Aisle Seats

Seat 7H Business
Seat 10D Business
Seat 10H Business

Quietest Seats

Seat 7H Business
Seat 25H Economy
Seat 10D 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