Seattle (SEA) – Sacramento (SMF)
- Distance
- 974 km
- 605 mi · 526 nm
- Flight time
- 1 h 52 min / 2 h
- Average gate to gate: SEA → SMF / back
- Time difference
- none
- CO2 per passenger
- 123 kg
- One way, economy, incl. RF (72 kg CO2 only)
- Passengers / year
- 865,737
- Aug 2025 – Jul 2026 · +0.7%
- Flights / week
- 175
- Both directions, average
- Seats filled
- 78%
- 1,115,664 seats a year
- Airlines nonstop
- 4
- AS, WN, OO
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 SEA
- 176°
- Heading from SMF
- 357°
- Halfway point
- 43.07, -121.93
- Great-circle km
- 975 km (sphere, for EU261)
- In the air SEA → SMF
- 1 h 24 min
- In the air SMF → SEA
- 1 h 31 min
- Clocks
- Same time in both
The estimate for a route without real times is 1 h 55 min; how it is worked out is on Sources.
Show as a table
| Month | Passengers |
|---|---|
| Aug 2025 | 87,291 |
| Sep 2025 | 75,231 |
| Oct 2025 | 70,976 |
| Nov 2025 | 62,898 |
| Dec 2025 | 65,112 |
| Jan 2026 | 54,975 |
| Feb 2026 | 56,402 |
| Mar 2026 | 66,933 |
| Apr 2026 | 67,958 |
| May 2026 | 76,604 |
| Jun 2026 | 87,495 |
| Jul 2026 | 93,862 |
Show as a table
| Month | Flights |
|---|---|
| Aug 2025 | 850 |
| Sep 2025 | 796 |
| Oct 2025 | 798 |
| Nov 2025 | 749 |
| Dec 2025 | 684 |
| Jan 2026 | 631 |
| Feb 2026 | 606 |
| Mar 2026 | 726 |
| Apr 2026 | 738 |
| May 2026 | 793 |
| Jun 2026 | 835 |
| Jul 2026 | 875 |
Airlines flying SEA–SMF nonstop
| Airline | Flights / week | Share of passengers |
|---|---|---|
| ASAlaska Airlines | 52 | 42% |
| WNSouthwest Airlines | 44 | 29% |
| OOSkyWest Airlines | 73 | 26% |
| QXHorizon Air | 6.6 | 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
- Embraer ERJ-175 · 4,112 flights
- Boeing 737-700/700LR/Max 7 · 1,358 flights
- Boeing 737-800 · 1,087 flights
- Boeing 737-900ER · 958 flights
- Boeing B737 Max 900 · 833 flights
- Boeing B737 Max 800 · 731 flights
- Boeing 737-900 · 2 flights
Also carried: 344 tonnes of freight and 57 tonnes of mail a year (passenger and cargo flights).
Punctuality
- On time
- 82.4%
- Arrived within 15 min of schedule
- Average delay
- 10 min
- Late arrivals count, early ones as 0
- Cancelled
- 0.3%
- Flights counted
- 8,771
- Aug 2025 – Jul 2026
| Airline | On time | Average delay |
|---|---|---|
| OOSkyWest Airlines | 88.1% | 8 min |
| ASAlaska Airlines | 80.1% | 10 min |
| WNSouthwest Airlines | 75.4% | 12 min |
Delay minutes by cause: airline 40% · aircraft arriving late 35% · air traffic system 16% · weather 9% · 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
- $179
- One way, all cabins
- Average over a year
- $183
- Q3 2025 – Q1 2026
- Largest airline
- Alaska Airlines
- 52% of passengers · $178
- Lowest-fare airline
- Southwest Airlines
- 26% of passengers · $163
History, not a price to book: what the average passenger paid per one-way trip in each quarter (Q3 2025 $185 · Q4 2025 $185 · Q1 2026 $179).
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: 975 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 Seattle and Sacramento
Kilometres. Linked numbers have a page of their own. All Seattle airports
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 |