Austin (AUS) – Seattle (SEA)
- Distance
- 2,849 km
- 1,770 mi · 1,539 nm
- Flight time
- 4 h 28 min / 4 h 6 min
- Average gate to gate: AUS → SEA / back
- Time difference
- 2 h
- CO2 per passenger
- 358 kg
- One way, economy, incl. RF (212 kg CO2 only)
- Passengers / year
- 540,168
- Aug 2025 – Jul 2026 · +3.0%
- Flights / week
- 79
- Both directions, average
- Seats filled
- 85%
- 638,325 seats a year
- Airlines nonstop
- 3
- AS, DL, WN
Traffic: U.S. DOT, Bureau of Transportation Statistics, T-100 Segment (all carriers, scheduled service), Aug 2025 – Jul 2026. Distance: WGS-84 ellipsoid. CO2: UK DESNZ 2026 factors. Sources
The way there
- Heading from AUS
- 319°
- Heading from SEA
- 123°
- Halfway point
- 39.48, -108.46
- Great-circle km
- 2,848 km (sphere, for EU261)
- In the air AUS → SEA
- 3 h 59 min
- In the air SEA → AUS
- 3 h 31 min
- Clocks
- Seattle is 2 h behind Austin
The estimate for a route without real times is 4 h 10 min; how it is worked out is on Sources.
Show as a table
| Month | Passengers |
|---|---|
| Aug 2025 | 51,123 |
| Sep 2025 | 42,928 |
| Oct 2025 | 43,720 |
| Nov 2025 | 40,494 |
| Dec 2025 | 40,743 |
| Jan 2026 | 29,546 |
| Feb 2026 | 32,841 |
| Mar 2026 | 43,610 |
| Apr 2026 | 41,462 |
| May 2026 | 48,585 |
| Jun 2026 | 61,006 |
| Jul 2026 | 64,110 |
Show as a table
| Month | Flights |
|---|---|
| Aug 2025 | 389 |
| Sep 2025 | 334 |
| Oct 2025 | 340 |
| Nov 2025 | 339 |
| Dec 2025 | 336 |
| Jan 2026 | 224 |
| Feb 2026 | 250 |
| Mar 2026 | 336 |
| Apr 2026 | 339 |
| May 2026 | 370 |
| Jun 2026 | 416 |
| Jul 2026 | 434 |
Airlines flying AUS–SEA nonstop
| Airline | Flights / week | Share of passengers |
|---|---|---|
| ASAlaska Airlines | 41 | 58% |
| DLDelta Air Lines | 36 | 38% |
| WNSouthwest Airlines | 2.2 | 3% |
Both directions, Aug 2025 – Jul 2026. Airlines with at least one flight a month. U.S. DOT, Bureau of Transportation Statistics, T-100 Segment (all carriers, scheduled service). Sources
Aircraft on this route
- Boeing 737-900ER · 978 flights
- A220-300 BD-500-1A11 · 942 flights
- Boeing B737 Max 900 · 855 flights
- Boeing 737-800 · 519 flights
- A200-100 BD-500-1A10 · 402 flights
- Airbus Industrie A320-100/200 · 141 flights
- Airbus Industrie A319 · 135 flights
- Boeing B737 Max 800 · 107 flights
Also carried: 99 tonnes of freight and 0 tonnes of mail a year (passenger and cargo flights).
Punctuality
- On time
- 80.8%
- Arrived within 15 min of schedule
- Average delay
- 13 min
- Late arrivals count, early ones as 0
- Cancelled
- 0.9%
- Flights counted
- 4,135
- Aug 2025 – Jul 2026
| Airline | On time | Average delay |
|---|---|---|
| ASAlaska Airlines | 81.1% | 10 min |
| DLDelta Air Lines | 82.3% | 14 min |
| WNSouthwest Airlines | 48.7% | 25 min |
Delay minutes by cause: airline 39% · aircraft arriving late 35% · air traffic system 21% · weather 4% · security 1%.
Both directions, Aug 2025 – Jul 2026. BTS Reporting Carrier On-Time Performance (US domestic flights of the larger US airlines). Sources
What passengers paid
- Average fare, Q1 2026
- $263
- One way, all cabins
- Average over a year
- $263
- Q3 2025 – Q1 2026
- Largest airline
- Alaska Airlines
- 61% of passengers · $248
- Lowest-fare airline
- Alaska Airlines
- 61% of passengers · $248
History, not a price to book: what the average passenger paid per one-way trip in each quarter (Q3 2025 $261 · Q4 2025 $265 · Q1 2026 $263).
U.S. DOT Consumer Airfare Report, Table 1a (airline ticket sample, US domestic airport pairs). Sources
Delay compensation (EU261 / UK261)
Measured by great-circle distance: 2,848 km.
Neither EU261 nor UK261 covers this route: it neither starts nor ends in the EU, EEA, Switzerland or the UK. Other countries have their own rules (for example Canada's APPR or Brazil's ANAC rules).
Also owed for a cancellation with less than 14 days' notice or denied boarding. Not owed for extraordinary circumstances. On a connection, the distance to the final destination counts. From 23 October 2027 the EU's Regulation 2026/2202 applies; it keeps these amounts (what changes in 2027). Information, not legal advice.
Every airport pair between Austin and Seattle
Kilometres. Linked numbers have a page of their own. All Seattle airports
More routes from AUS
More routes from SEA
| Route | Distance | Passengers / year |
|---|---|---|
| SEA → DEN | 1,648 km | 1,819,437 |
| SEA → PHX | 1,781 km | 1,813,338 |
| SEA → LAX | 1,535 km | 1,810,795 |
| SEA → ANC | 2,331 km | 1,694,688 |
| SEA → SFO | 1,092 km | 1,628,228 |
| SEA → ORD | 2,769 km | 1,622,991 |
| SEA → LAS | 1,394 km | 1,596,435 |
| SEA → DFW | 2,671 km | 1,577,921 |
| SEA → SAN | 1,690 km | 1,233,726 |
| SEA → SLC | 1,108 km | 1,106,553 |