Delta Air Lines flights from Washington (IAD) to SeaTac (SEA)
Find comprehensive Delta Air Lines flight information, schedules, and booking details for direct flights from Washington (IAD), US to SeaTac (SEA), US. Delta Air Lines operates 3-4 flights daily flights on this route.• Flight Duration: 5h 35m - 6h 04m (average flight time)• Distance: 2313 miles (3722 km) (air miles between airports)• Daily Flights: 3-4 flights (scheduled departures per day)
Washington (IAD)
US
SeaTac (SEA)
US
FLIGHT TIME
5h 35m - 6h 04m
FLIGHT DISTANCE
2313 miles (3722 km)
6h 4m - 6h 4m
07:15
07:15
2313 miles (3722 km)
January
1 (Show)
35
Main Terminal (IAD)
Terminal 1 (SEA)
Delta Air Lines Flight Schedule from Washington (IAD) to SeaTac (SEA)
| Flight | Airline | Departure | Arrival | Aircraft |
|---|---|---|---|---|
DL1015 |  Delta Air Lines | 07:15 | 10:19:00 | Airbus A220-300 |
Delta Air Lines Monthly Flight Calendar
Loading calendar...
Route Insights
Pricing patterns: January typically offers lower prices due to reduced demand outside peak travel seasons.
Best departure times: Peak departure times are 7:00, offering more flight options and potentially better connections.
Loading price statistics...
Delta Air Lines Policy Highlights
Baggage Policy
Standard baggage allowance varies depending on the class of travel. Additional charges may apply for excess baggage.
For detailed baggage policies, visit Delta Air Lines airline page or Delta Air Lines official website.
Check-in Information
Online check-in available 24 hours before departure.
Delta Air Lines Terminal Information
Departure Terminal at Washington (IAD):
• Delta Air Lines flights from Washington (IAD) depart from Terminal Main Terminal
• Terminal Main Terminal: Delta Air Lines operates from this terminal
Arrival Terminal at SeaTac (SEA):
• Delta Air Lines flights to SeaTac (SEA) arrive at Terminal Terminal 1
• Terminal Terminal 1: Delta Air Lines operates from this terminal
Frequently Asked Questions about Delta Air Lines Flights
How many Delta Air Lines flights operate from Washington (IAD) to Seattle (SEA)?
Delta Air Lines operates 1 flight from Washington (IAD) to Seattle (SEA).
What city does Seattle (SEA) airport serve?
Seattle (SEA) airport serves SeaTac, US.
How long is the Delta Air Lines flight from Washington (IAD) to Seattle (SEA)?
The flight duration is approximately 5h 35m - 6h 04m.
What is the distance from Washington (IAD) to Seattle (SEA)?
The distance is 2313 miles (3722 km).
What aircraft does Delta Air Lines use on this route?
Delta Air Lines uses Airbus A220-300 on this route.
Which other airlines operate on this route?
2 other airlines operate on this route: Alaska Airlines, United Airlines.
Which terminal does Delta Air Lines use at Washington (IAD)?
Delta Air Lines flights from Washington (IAD) depart from Terminal Main Terminal.
Which terminal does Delta Air Lines use at Seattle (SEA)?
Delta Air Lines flights to Seattle (SEA) arrive at Terminal Terminal 1.
What is the cheapest month to fly Delta Air Lines from Washington (IAD) to Seattle (SEA)?
January is typically the cheapest month to fly Delta Air Lines on this route.
What is the average price for a Delta Air Lines flight from Washington (IAD) to Seattle (SEA)?
The average price for a round-trip Delta Air Lines flight on this route is approximately $419. Prices can vary based on booking time and demand.
How many Delta Air Lines flights operate per week on this route?
Delta Air Lines operates approximately 35 flights per week from Washington (IAD) to Seattle (SEA).