Flights operate between Seattle (SEA) and Austin (AUS).
1 airline operates this route with 5-6 flights daily flights.
Average flight time is 3h 59m - 4h 27m.
Route distance is 1779 miles (2862 km).
Route Distance
1779 miles (2862 km)
Average Duration
3h 59m - 4h 27m
Airlines Operating This Route
Delta Air Lines
Flight Frequency
Daily Flights
5-6 flights
Weekly Flights
52
Typical Departure Time Ranges
Earliest Departure
07:20
Latest Departure
17:45
Route Intelligence Dashboard
Overall Connectivity Score
70
GoodRoute Diversity
1
Direct Routes
Delta Air Lines serves 1 destination from SEA
Weekly Frequency
21
Weekly Flights
Trend: Stable
Top 1 Most Frequent Routes - Details
| Route | Weekly Flights | Duration | Distance | Reliability |
|---|---|---|---|---|
| SEA → Austin (AUS) (AUS) | 21/week | 3h 59m - 4h 27m | 1,779 km | Moderate |
Flight Schedule & Filters
Delta Air Lines flights from SeaTac (SEA) to Austin (AUS)
Delta Air Lines operates scheduled nonstop flights between SeaTac (SEA) and Austin (AUS). Delta Air Lines operates 5-6 flights daily flights on this route.• Flight Duration: 3h 59m - 4h 27m (average flight time)• Distance: 1779 miles (2862 km) (air miles between airports)• Daily Flights: 5-6 flights (scheduled departures per day)
SeaTac (SEA)
US
Austin (AUS)
US
FLIGHT TIME
3h 59m - 4h 27m
FLIGHT DISTANCE
1779 miles (2862 km)
4h 12m - 4h 20m
07:20
17:45
1779 miles (2862 km)
January
1 (Show)
52
Delta Air Lines Terminal Information & Contact
Departure Terminal - SeaTac (SEA)
Terminal: 1
Phone: 1-800-123-6645
Location: 1, Seattle, US
Arrival Terminal - Austin (AUS)
Terminal: 1
Phone: 1-800-123-6645
Location: 1, Austin, US
Delta Air Lines Flight Schedule from SeaTac (SEA) to Austin (AUS)
| Flight | Airline | Departure | Arrival | Aircraft |
|---|---|---|---|---|
DL739 |  Delta Air Lines | 07:20 | 13:32:00 | Airbus A320 |
DL831 | Delta Air Lines | 11:35 | 17:55:00 | Airbus A220-300 |
DL848 | Delta Air Lines | 17:45 | 23:57:00 | Airbus A220-100 |
Delta Air Lines Monthly Flight Calendar
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Delta Air Lines Terminal Information
Departure Terminal at SeaTac (SEA):
• Terminal : Delta Air Lines operates from this terminal
Terminal 1:
• Delta Air Lines Terminal Phone: 1-800-123-6645
Arrival Terminal at Austin (AUS):
• Terminal : Delta Air Lines operates from this terminal
Terminal 1:
• Delta Air Lines Terminal Phone: 1-800-123-6645
Weather & Climate at Austin (AUS)
21.7°C
Avg Temperature81mm
Avg Rainfall13.5km/h
Avg Wind Speed65%
Avg HumidityBest Months to Visit
Challenging Months
12-Month Weather Overview
Wind Speed by Month
Humidity by Month
Best Time to Book Flights to Austin (AUS)
Best Booking Window
Book 2-3 months in advance for best prices
Booking Tip
Avoid booking during extreme weather months for better deals
Peak Travel Months
Expect higher prices and more crowds during these months. Book early to secure better rates.
Recommended Months
These months offer the best balance of weather, prices, and availability.
Monthly Booking Recommendations
Flight Price Trends for Austin (AUS)
Cheapest Months to Fly
Book flights during these months for the best deals and lowest prices.
Most Expensive Months
Prices are typically highest during these months. Consider booking well in advance or choosing alternative dates.
Price Trend Analysis
Prices are typically lower during shoulder seasons
Monthly Price Trends
Best Months to Fly Delta Air Lines to Austin (AUS)
Best Months
Optimal conditions for travel with favorable weather, prices, and availability.
Shoulder Season
Transition periods with moderate conditions. Good balance of price and experience.
Challenging Months
These months may have less favorable conditions. Plan accordingly and book early.
Seasonal Insight
Best travel months: 2025-06, 2025-09
Seasonal Travel Calendar
Delta Air Lines Contact Information and Customer Services
Delta Air Lines Address
1030 Delta Boulevard
Atlanta, Georgia 30354-1989, United States
Customer Service Phone
+1 800 221 12 12Official Website
delta.comFrequently Asked Questions
How many Delta Air Lines flights operate from Seattle (SEA) to Austin (AUS)?
Delta Air Lines operates 3 flights from Seattle (SEA) to Austin (AUS).
What city does Austin (AUS) airport serve?
Austin (AUS) airport serves Austin, US.
How long is the Delta Air Lines flight from Seattle (SEA) to Austin (AUS)?
The flight duration is approximately 3h 59m - 4h 27m.
What is the distance from Seattle (SEA) to Austin (AUS)?
The distance is 1779 miles (2862 km).
What aircraft does Delta Air Lines use on this route?
Delta Air Lines uses Airbus A320, Airbus A220-300, Airbus A220-100 on this route.
Which other airlines operate on this route?
1 other airline operates on this route: Alaska Airlines.
What are the earliest and latest Delta Air Lines flight departure times?
The earliest Delta Air Lines flight departs at 07:20 and the latest departs at 17:45.
View all Delta Air Lines flights to Seattle (SEA) →
Popular Delta Air Lines routes from Seattle include multiple destinations.
Route data verified regularly by Triposia Travel Research Team.