Delta Air Lines flights from SeaTac (SEA) to Washington (IAD)
Find comprehensive Delta Air Lines flight information, schedules, and booking details for direct flights from SeaTac (SEA), US to Washington (IAD), US. Delta Air Lines operates 3-6 flights daily flights on this route.• Flight Duration: 4h 50m - 5h 17m (average flight time)• Distance: 2313 miles (3722 km) (air miles between airports)• Daily Flights: 3-6 flights (scheduled departures per day)
SeaTac (SEA)
US
Washington (IAD)
US
FLIGHT TIME
4h 50m - 5h 17m
FLIGHT DISTANCE
2313 miles (3722 km)
4h 55m - 4h 55m
16:59
16:59
2313 miles (3722 km)
January
1 (Show)
30
Terminal 1 (SEA)
Main Terminal (IAD)
Delta Air Lines Flight Schedule from SeaTac (SEA) to Washington (IAD)
| Flight | Airline | Departure | Arrival | Aircraft |
|---|---|---|---|---|
DL541 |  Delta Air Lines | 16:59 | 00:54:00 | Airbus A220-300 |
Delta Air Lines Monthly Flight Calendar
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Route Insights
Pricing patterns: January typically offers lower prices due to reduced demand outside peak travel seasons.
Best departure times: Peak departure times are 16:00, offering more flight options and potentially better connections.
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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 SeaTac (SEA):
• Delta Air Lines flights from SeaTac (SEA) depart from Terminal Terminal 1
• Terminal Terminal 1: Delta Air Lines operates from this terminal
Arrival Terminal at Washington (IAD):
• Delta Air Lines flights to Washington (IAD) arrive at Terminal Main Terminal
• Terminal Main Terminal: Delta Air Lines operates from this terminal
Frequently Asked Questions about Delta Air Lines Flights
How many Delta Air Lines flights operate from Seattle (SEA) to Washington (IAD)?
Delta Air Lines operates 1 flight from Seattle (SEA) to Washington (IAD).
What city does Washington (IAD) airport serve?
Washington (IAD) airport serves Washington, US.
How long is the Delta Air Lines flight from Seattle (SEA) to Washington (IAD)?
The flight duration is approximately 4h 50m - 5h 17m.
What is the distance from Seattle (SEA) to Washington (IAD)?
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: United Airlines, Alaska Airlines.
Which terminal does Delta Air Lines use at Seattle (SEA)?
Delta Air Lines flights from Seattle (SEA) depart from Terminal Terminal 1.
Which terminal does Delta Air Lines use at Washington (IAD)?
Delta Air Lines flights to Washington (IAD) arrive at Terminal Main Terminal.
What is the cheapest month to fly Delta Air Lines from Seattle (SEA) to Washington (IAD)?
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 Seattle (SEA) to Washington (IAD)?
The average price for a round-trip Delta Air Lines flight on this route is approximately $413. 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 30 flights per week from Seattle (SEA) to Washington (IAD).