Sacramento to Seattle (SMF-SEA): nonstop upgrade & award space

Alaska Airlines and Delta Air Lines fly nonstop between Sacramento (SMF) and Seattle (SEA), roughly 67 times a week. The timetable below shows the nonstop scheduled at 1h 59m to 2h 20m for the 606 miles. 2LNR checks confirmed upgrade and award space on Alaska Airlines and Delta Air Lines flights on this route, so you can see which departures have space before you book.

Schedule last confirmed . Departure times come from 2LNR's schedule data; confirm with the airline before you book.

Updated .

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67
Flights a week, 4-week average
1h 59m to 2h 20m
Scheduled flight time
606 mi
Nonstop distance
Free
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Sacramento to Seattle flight schedule

Scheduled nonstop departures for SMF to SEA starting October 23, 2026, last checked against our schedule feed on October 18, 2026. Airlines retime and cancel flights, so confirm with the airline before you book.

Schedule data dated .

Scheduled nonstop departures from Sacramento (SMF) to Seattle (SEA)
Date Flight Airline Departs SMF Arrives SEA Duration Aircraft
AS 1358Alaska Airlines, Inc.06:0208:072h 5mBoeing 737-900
DL 4075Delta Air Lines07:3509:532h 18mEmbraer E175
AS 458Alaska Airlines, Inc.08:2310:292h 6mBoeing 737-800
DL 4439Delta Air Lines11:1013:282h 18mEmbraer E175
DL 3881Delta Air Lines11:2013:402h 20mEmbraer E175
AS 1365Alaska Airlines, Inc.11:2113:232h 2mBoeing 737 MAX 9
DL 4125Delta Air Lines13:0015:112h 11mEmbraer E175
AS 763Alaska Airlines, Inc.13:1015:091h 59mBoeing 737-800
DL 4153Delta Air Lines17:3719:502h 13mEmbraer E175
AS 646Alaska Airlines, Inc.18:5121:002h 9mBoeing 737 MAX 9
DL 4043Delta Air Lines19:5122:022h 11mEmbraer E175
AS 1358Alaska Airlines, Inc.06:0008:082h 8mBoeing 737-900
DL 4075Delta Air Lines07:3509:532h 18mEmbraer E175
AS 458Alaska Airlines, Inc.08:2310:292h 6mBoeing 737 MAX 8
DL 4439Delta Air Lines11:1013:282h 18mEmbraer E175
DL 3881Delta Air Lines11:2013:402h 20mEmbraer E175
AS 1365Alaska Airlines, Inc.11:2113:232h 2mBoeing 737-800
DL 4125Delta Air Lines13:0015:112h 11mEmbraer E175
AS 763Alaska Airlines, Inc.13:1015:091h 59mBoeing 737 MAX 8
DL 4153Delta Air Lines17:3719:502h 13mEmbraer E175
AS 646Alaska Airlines, Inc.19:0921:212h 12mBoeing 737-900
AS 1358Alaska Airlines, Inc.06:0208:072h 5mBoeing 737-900
AS 458Alaska Airlines, Inc.07:3009:362h 6mBoeing 737-800
DL 4075Delta Air Lines07:3509:532h 18mEmbraer E175
DL 4439Delta Air Lines11:1013:282h 18mEmbraer E175
DL 3881Delta Air Lines11:2013:402h 20mEmbraer E175
AS 1365Alaska Airlines, Inc.11:2113:232h 2mBoeing 737-800
DL 4125Delta Air Lines13:0015:112h 11mEmbraer E175
AS 763Alaska Airlines, Inc.13:1015:091h 59mBoeing 737-800
DL 4153Delta Air Lines17:3719:502h 13mEmbraer E175
AS 646Alaska Airlines, Inc.18:5121:002h 9mBoeing 737-900
DL 4043Delta Air Lines19:5922:102h 11mEmbraer E175
AS 1358Alaska Airlines, Inc.06:0208:072h 5mBoeing 737-800
DL 4075Delta Air Lines07:3509:532h 18mEmbraer E175
AS 458Alaska Airlines, Inc.08:2310:292h 6mBoeing 737-800
DL 4439Delta Air Lines11:1013:282h 18mEmbraer E175
DL 3881Delta Air Lines11:2013:402h 20mEmbraer E175
AS 1365Alaska Airlines, Inc.11:2113:232h 2mBoeing 737-800
DL 4125Delta Air Lines13:0015:112h 11mEmbraer E175
AS 763Alaska Airlines, Inc.13:1015:091h 59mBoeing 737-800

Showing the first 40 of 76 scheduled SMF to SEA departures across 7 days with service, starting October 23, 2026. Every remaining date is on the interactive map.

Departure and arrival times are local at their own airport, so an arrival can fall on a different local date than the departure; the duration column is the true elapsed flying time. A dash means the airline hasn't filed that value in the schedule data we hold. Aircraft are the equipment the airline filed, named where the code pins down one type and shown as the family or the bare code where it doesn't. Swaps can happen up to departure.

See every SMF to SEA date on the interactive map

Aircraft on the Sacramento to Seattle nonstop

In the schedule table on this page, Delta Air Lines flies the Embraer E175, and Alaska Airlines flies the Boeing 737-800, the Boeing 737-900, the Boeing 737 MAX 9, and the Boeing 737 MAX 8. Each linked aircraft page shows where that airline schedules it. Airlines can swap aircraft up to departure.

Confirmed upgrade & award space on SMF to SEA departures

2LNR tracks confirmed upgrade and award space on Alaska Airlines and Delta Air Lines, segment by segment and date by date. Open the calendar for Sacramento to Seattle to see which departures have space, the next 14 days free on every product and the full horizon on Pro.

In the 7 days to October 19, 2026, 2LNR checked award space on Sacramento to Seattle departures from October 19 to November 1. Alaska Airlines had space open on 11 of 14 dates checked and Delta Air Lines on 14 of 14.

See real availability

Confirmed upgrade or award seats by date on the SMF to SEA departures 2LNR tracks, checked against live inventory so you know what's open before you book.

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Premium inventory turns over fast. Watch this route on Pro and 2LNR notifies you when space appears on a date you're tracking.

Plan on the map

See SMF to SEA on the interactive route map, with schedules, connections, and route statistics.

Airlines flying Sacramento to Seattle nonstop

Carriers operating SMF to SEA nonstop in the current schedule. Where 2LNR tracks the carrier, its departures show confirmed upgrade or award space by date.

See SMF to SEA on the interactive map →

Frequently asked questions about SMF to SEA

How long is the flight from Sacramento (SMF) to Seattle (SEA)?
Scheduled flight times from Sacramento (SMF) to Seattle (SEA) run from 1h 59m to 2h 20m across the departures in the schedule table on this page. The nonstop covers about 606 miles, and airlines adjust scheduled times by season, so confirm with the airline before you book.
Which airlines fly nonstop from SMF to SEA?
Alaska Airlines and Delta Air Lines fly SMF to SEA nonstop. 2LNR tracks confirmed upgrade and award space on Alaska Airlines and Delta Air Lines.
How many flights a week are there from SMF to SEA?
About 67 nonstop flights a week run between Sacramento (SMF) and Seattle (SEA) in the current schedule, operated by Alaska Airlines and Delta Air Lines. Frequency shifts by season, and the schedule table on this page shows what is scheduled next.
What time do flights from SMF to SEA depart?
Scheduled SMF to SEA nonstops in the next 7 days with service leave between 06:00 and 19:59, local time at Sacramento. The schedule table on this page lists every departure by date, with its arrival time and aircraft.
Which flights operate SMF to SEA nonstop?
The schedule table on this page lists 11 flight numbers for SMF to SEA nonstops, including DL 3881, DL 4075, DL 4125, and DL 4439 on Delta Air Lines, and AS 458, AS 763, AS 1358, and AS 1365 on Alaska Airlines. The table lists each departure by date with its times and aircraft.
How do I check upgrade or award availability on SMF to SEA?
Open the SMF to SEA route on the interactive map or the matrix to see confirmed upgrade and award space by date on Alaska Airlines and Delta Air Lines, the next 14 days free and the full horizon on Pro. On Pro you can also set an alert on the route and 2LNR notifies you when space opens.

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See what's open by date on this route, the next 14 days free on every product and the full horizon on Pro.

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