Which airlines fly the Airbus A321 (all variants) from SEA to SFO?

See the operators list on this page — it is compiled from open ADS-B observed-flights data updated nightly. Operators with the most recent observations are listed first.

How often is the Airbus A321 (all variants) used on the SEA to SFO route?

Observed model variants and date ranges are listed below. Aircraft assignments can change seasonally; data refreshes nightly.

What is the typical schedule for Airbus A321 (all variants) flights from Seattle to San Francisco?

Schedules vary by operator. For live schedules and fares, search by aircraft on the FlightFinder home page.

Where does this data come from?

Operator and aircraft observations come from the adsb.lol open ADS-B network under the Open Database License. Data refreshes nightly.

Seattle to San Francisco on the Airbus A321 (all variants)

SEA → SFO · operated by the Airbus A321 (all variants)

Distance: 1,093 km (679 mi)
Est. flight time: ~1h 37m
Operators on Airbus A321 (all variants): 2
Observations (14 days): 2

Airlines operating the Airbus A321 (all variants) on SEA → SFO

Airline	Observations	First seen	Last seen
Alaska Airlines	1	2026-05-20	2026-05-20
Delta Air Lines	1	2026-05-20	2026-05-20

About the Airbus A321 (all variants) on this route

The Airbus A321 (all variants) is used by 2 operators on Seattle → San Francisco.

For specifications, safety record, and global deployment data, see the Airbus A321 (all variants) family page or the Airbus A321 (all variants) safety record.

Other aircraft on the SEA–SFO route

Boeing 737 (all variants) — 5 observations
Airbus A320 (all variants) — 1 observation
Embraer E170/E175 — 1 observation

Airport details

Departure: Seattle Tacoma International Airport (SEA)

City: Seattle
Country: United States
IATA / ICAO: SEA / KSEA

Arrival: San Francisco International Airport (SFO)

City: San Francisco
Country: United States
IATA / ICAO: SFO / KSFO

Frequently asked questions

Which airlines fly the Airbus A321 (all variants) on the SEA-SFO route?

Airlines observed operating the Airbus A321 (all variants) on SEA to SFO include: Alaska Airlines, Delta Air Lines.

How often does the Airbus A321 (all variants) fly SEA-SFO?

The Airbus A321 (all variants) was observed 2 times on the SEA–SFO route in the last 14 days across 2 operators.

What's the distance from Seattle to San Francisco?

The great-circle distance from Seattle (SEA) to San Francisco (SFO) is approximately 1,093 km (679 miles). Estimated flight time is ~1h 37m.

What other aircraft fly the SEA-SFO route?

Other aircraft observed on SEA–SFO include: Boeing 737 (all variants), Airbus A320 (all variants), Embraer E170/E175.

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