Direct (nonstop) flights from Seattle to Austin

3 airlines fly nonstop from Seattle Tacoma International (SEA) to Austin-Bergstrom International Airport (AUS). It's 1,769 miles (2,847 km), about 4h 13m in the air. Operated by Alaska Airlines, Delta Air Lines, Southwest Airlines.

SEA
Seattle Tacoma International
🇺🇸 Seattle, USA
AUS
Austin-Bergstrom International Airport
🇺🇸 Austin, USA
Flight Time
4h 13m
Distance
1,769 mi
2,847 km
CO₂/pax
299 kg
−45 kg vs. layover
Airlines
3
Alaska Airlines +2
Time Diff
+2h
Operated by Alaska Airlines Alaska Airlines Delta Air Lines Delta Air Lines Southwest Airlines Southwest Airlines

Route data last updated: May 29, 2026

Airlines with non-stop flights

Alaska Airlines AS Alaska Airlines
Route
SEA → AUS
Flight Time
4h 13m
Distance
1,769 mi
Delta Air Lines DL Delta Air Lines
Route
SEA → AUS
Flight Time
4h 13m
Distance
1,769 mi
Southwest Airlines WN Southwest Airlines
Route
SEA → AUS
Flight Time
4h 13m
Distance
1,769 mi

Alternative Routes

Other ways to fly from Seattle to Austin with one stop · direct emits 299 kg CO₂ per passenger

SEA BZN (Bozeman) AUS
Leg 1: 1h 42m (542 mi) Leg 2: 2h 55m (1,298 mi) Total: ~4h 37m 🍃 344 kg CO₂ (+15% vs. direct)
Leg 1
SEA → BZN
1h 42m · 542 mi
View SEA to BZN flights →
Leg 2
BZN → AUS
2h 55m · 1,298 mi
View BZN to AUS flights →
SEA ABQ (Albuquerque) AUS
Leg 1: 3h 4m (1,178 mi) Leg 2: 1h 45m (619 mi) Total: ~4h 49m 🍃 339 kg CO₂ (+13% vs. direct)
Leg 1
SEA → ABQ
3h 4m · 1,178 mi
View SEA to ABQ flights →
Leg 2
ABQ → AUS
1h 45m · 619 mi
View ABQ to AUS flights →
SEA FCA (Kalispell) AUS
Leg 1: 1h 22m (378 mi) Leg 2: 3h 30m (1,526 mi) Total: ~4h 52m 🍃 353 kg CO₂ (+18% vs. direct)
Leg 1
SEA → FCA
1h 22m · 378 mi
View SEA to FCA flights →
Leg 2
FCA → AUS
3h 30m · 1,526 mi
View FCA to AUS flights →
SEA DAL (Dallas) AUS
Leg 1: 3h 55m (1,669 mi) Leg 2: 1h (188 mi) Total: ~4h 55m 🍃 342 kg CO₂ (+14% vs. direct)
Leg 1
SEA → DAL
3h 55m · 1,669 mi
View SEA to DAL flights →
Leg 2
DAL → AUS
1h · 188 mi
View DAL to AUS flights →
SEA SLC (Salt Lake City) AUS
Leg 1: 2h 6m (688 mi) Leg 2: 2h 51m (1,085 mi) Total: ~4h 57m 🍃 335 kg CO₂ (+12% vs. direct)
Leg 1
SEA → SLC
2h 6m · 688 mi
View SEA to SLC flights →
Leg 2
SLC → AUS
2h 51m · 1,085 mi
View SLC to AUS flights →

Looking for the return flight?

AUS → SEA: Flights from Austin to Seattle

Frequently Asked Questions

How long is the direct flight from Seattle to Austin?

A nonstop flight from Seattle (SEA) to Austin (AUS) takes approximately 4 hours and 13 minutes. The distance is 1,769 miles (2,847 km).

Which airlines fly nonstop from Seattle to Austin?

3 airlines: Alaska Airlines, Delta Air Lines, Southwest Airlines.

Is there a nonstop flight from Seattle to Austin?

Yes. 3 airlines: Alaska Airlines, Delta Air Lines, Southwest Airlines.

How far is Seattle from Austin?

The flight distance from Seattle to Austin is 1,769 miles (2,847 km), measured as the great-circle (shortest air) distance.

What type of aircraft flies from Seattle to Austin?

At 4h 13m, this route typically uses narrow-body or mid-range jets — Boeing 737 MAX or Airbus A320neo. Varies by airline.

What is the carbon footprint of a flight from Seattle to Austin?

Roughly 299 kg CO2 per passenger one-way. That's about the same as driving 1,495 km.

Is the return flight from Austin to Seattle also nonstop?

Yes — nonstop flights run both ways. Flight time may differ slightly due to wind patterns.

When is the cheapest time to fly from Seattle to Austin?

Midweek flights (Tue/Wed) outside holiday peaks are usually cheapest. 3-6 weeks ahead is a good window for this route. Use "Check Prices" above to compare.

How early should I arrive at Seattle Tacoma International for this flight?

1.5-2 hours for domestic. Add more time during holidays or busy travel weekends.