San Diego (SAN) – Seattle (SEA)

Distance

1,690 km

1,050 mi · 913 nm

Flight time

3 h / 2 h 49 min

Average gate to gate: SAN → SEA / back

Time difference

none

CO2 per passenger

213 kg

One way, economy, incl. RF (126 kg CO2 only)

Passengers / year

1,233,726

Aug 2025 – Jul 2026 · +0.3%

Flights / week

174

Both directions, average

Seats filled

83%

1,490,492 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

Airlines flying SAN–SEA nonstop

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 737-800 · 3,038 flights
• Boeing 737-900ER · 2,464 flights
• Boeing B737 Max 900 · 2,011 flights
• A220-300 BD-500-1A11 · 479 flights
• A200-100 BD-500-1A10 · 477 flights
• Boeing B737 Max 800 · 279 flights
• Boeing 737-700/700LR/Max 7 · 147 flights
• Airbus Industrie A319 · 98 flights

Also carried: 362 tonnes of freight and 90 tonnes of mail a year (passenger and cargo flights).

Punctuality

On time

78.6%

Arrived within 15 min of schedule

Average delay

13 min

Late arrivals count, early ones as 0

Cancelled

1.3%

Flights counted

9,188

Aug 2025 – Jul 2026

Delay minutes by cause: airline 33% · aircraft arriving late 41% · air traffic system 24% · weather 2% · security 0%.

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

$214

One way, all cabins

Average over a year

$213

Q3 2025 – Q1 2026

Largest airline

Alaska Airlines

63% of passengers · $217

Lowest-fare airline

Delta Air Lines

30% of passengers · $207

History, not a price to book: what the average passenger paid per one-way trip in each quarter (Q3 2025 $204 · Q4 2025 $223 · Q1 2026 $214).

U.S. DOT Consumer Airfare Report, Table 1a (airline ticket sample, US domestic airport pairs). Sources

Every airport pair between San Diego and Seattle

Kilometres. Linked numbers have a page of their own. All Seattle airports