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Cheap flights from San Diego to Seattle

79 nonstop flights a week, 9 of them today. Operated by 3 airlines, about 3h 10m in the air, 1,064 mi (1,712 km). Tickets from $79, nonstop from $95.

Flights from San Diego to Seattle

Pick a departure date to see flights and seller prices

We search agencies and airlines for your day: nonstop and connecting flights, baggage, departure and arrival times.

Prices by day: San Diego to Seattle

Lowest one-way price in dollars from recent searches, cheap days in green. Press a day to see flights and exact prices.

Filters

Best fares from San Diego to Seattle

Lowest one-way prices found by recent searches for the next 120 days; press a card to search that date

Cheapest one-way $79 19 December 2026, with a connection Cheapest nonstop $95 24 December 2026, Alaska Airlines Cheapest in the next 7 days $238 16 November, Mon Cheapest weekend departure $79 Sat, 19 December 2026
Cheapest day of the week Wednesday $147 on average over the next 120 days
Cheapest month December 2026 tickets from $79

San Diego to Seattle at a glance

flight time, from 2h 55m to 5h 25m
3h 10m
straight-line distance
1,064 mi (1,712 km)
flights a week
79
flights today
9
first and last departure
06:15 - 19:45
lowest price, with a connection, 19 December
$79
lowest nonstop price
$95
airlines
3

San Diego to Seattle ticket prices by month

Lowest one-way fare found by recent searches

Cheapest month: December 2026, tickets from $79. Prices come from searches over the last few days; check the search for your exact date.

The most expensive month is November 2026: from $128. The average across months is $103.

San Diego to Seattle flight schedule

79 flights a week, 9 today, 49 seasonal or one-off. Departure and arrival times are local.

FlightDepartsArrivesDurationDaysAircraft
AS 608
Alaska Airlines
06:15 San Diego International, terminal 2
09:27 Seattle-Tacoma International
3h 12m
Mon, Thu, Fri, Sat, Sun
Boeing 737-900
WN 1693
Southwest Airlines
06:45 San Diego International, terminal 1
12:10 Seattle-Tacoma International
5h 25m
Mon, Tue, Wed, Thu
DL 2530
Delta
07:20 San Diego International, terminal 2
10:38 Seattle-Tacoma International
3h 18m
Daily
Airbus A220-300
WN 547
Southwest Airlines
07:20 San Diego International, terminal 1
10:25 Seattle-Tacoma International
3h 5m
Mon, Tue, Wed, Thu
AS 792
Alaska Airlines
07:40 San Diego International, terminal 2
10:53 Seattle-Tacoma International
3h 13m
Tue, Wed
Boeing 737
WN 547
Southwest Airlines
08:50 San Diego International, terminal 1
12:00 Seattle-Tacoma International
3h 10m
Sat
Boeing 737
AS 792
Alaska Airlines
09:15 San Diego International, terminal 2
12:28 Seattle-Tacoma International
3h 13m
Mon, Thu, Fri, Sat, Sun
Boeing 737-900
WN 547
Southwest Airlines
09:40 San Diego International, terminal 1
12:55 Seattle-Tacoma International
3h 15m
Sat
Boeing 737
WN 547
Southwest Airlines
09:45 San Diego International, terminal 1
13:00 Seattle-Tacoma International
3h 15m
Mon, Thu, Fri, Sun
Boeing 737
DL 2508
Delta
11:02 San Diego International, terminal 2
14:13 Seattle-Tacoma International
3h 11m
Daily
Boeing 737-800
AS 1368
Alaska Airlines
11:32 San Diego International, terminal 2
14:45 Seattle-Tacoma International
3h 13m
Daily
Boeing 737
AS 1368
Alaska Airlines
12:13 San Diego International, terminal 2
15:24 Seattle-Tacoma International
3h 11m
Mon, Fri, Sat, Sun
Boeing 737
AS 683
Alaska Airlines
13:36 San Diego International, terminal 2
16:45 Seattle-Tacoma International
3h 9m
Mon, Fri, Sat, Sun
Boeing 737-800
AS 683
Alaska Airlines
13:48 San Diego International, terminal 2
16:56 Seattle-Tacoma International
3h 8m
Daily
Boeing 737-900
DL 2533
Delta
13:49 San Diego International, terminal 2
16:57 Seattle-Tacoma International
3h 8m
Daily
Airbus A220-300
AS 622
Alaska Airlines
14:48 San Diego International, terminal 2
17:55 Seattle-Tacoma International
3h 7m
Daily
Boeing 737-800
AS 622
Alaska Airlines
14:55 San Diego International, terminal 2
18:04 Seattle-Tacoma International
3h 9m
Mon, Sat, Sun
Boeing 737
AS 685
Alaska Airlines
17:20 San Diego International, terminal 2
20:27 Seattle-Tacoma International
3h 7m
Tue, Sun
Boeing 737-800
WN 713
Southwest Airlines
18:00 San Diego International, terminal 1
21:15 Seattle-Tacoma International
3h 15m
Mon, Thu, Fri, Sun
AS 574
Alaska Airlines
18:22 San Diego International, terminal 2
21:29 Seattle-Tacoma International
3h 7m
Daily
Boeing 737-900
AS 1373
Alaska Airlines
19:45 San Diego International, terminal 2
22:57 Seattle-Tacoma International
3h 12m
Sun
Boeing 737-900

Seasonal and one-off flights

Not operating in the next two weeks. The first of them is on 24 November.

FlightDepartsArrivesDurationDaysAircraft
WN 547
Southwest Airlines
09:05 San Diego International, terminal 1
12:10 Seattle-Tacoma International
3h 5m
Seasonal
WN 1655
Southwest Airlines
09:05 San Diego International, terminal 1
12:15 Seattle-Tacoma International
3h 10m
Seasonal
AS 792
Alaska Airlines
07:15 San Diego International, terminal 2
10:27 Seattle-Tacoma International
3h 12m
Seasonal
Boeing 737-800
AS 1368
Alaska Airlines
11:00 San Diego International, terminal 2
14:13 Seattle-Tacoma International
3h 13m
Seasonal
Boeing 737-800
DL 2508
Delta
11:06 San Diego International, terminal 2
14:21 Seattle-Tacoma International
3h 15m
Seasonal
Boeing 737-800
AS 683
Alaska Airlines
13:24 San Diego International, terminal 2
16:37 Seattle-Tacoma International
3h 13m
Seasonal
Boeing 737
DL 2533
Delta
13:51 San Diego International, terminal 2
17:03 Seattle-Tacoma International
3h 12m
Seasonal
Airbus A220-300
WN 547
Southwest Airlines
09:10 San Diego International, terminal 1
12:20 Seattle-Tacoma International
3h 10m
Seasonal
Boeing 737
AS 792
Alaska Airlines
09:35 San Diego International, terminal 2
12:50 Seattle-Tacoma International
3h 15m
Seasonal
Boeing 737-900
AS 1368
Alaska Airlines
11:57 San Diego International, terminal 2
15:14 Seattle-Tacoma International
3h 17m
Seasonal
Boeing 737-900
AS 683
Alaska Airlines
13:56 San Diego International, terminal 2
17:07 Seattle-Tacoma International
3h 11m
Seasonal
Boeing 737-900
DL 2508
Delta
11:13 San Diego International, terminal 2
14:35 Seattle-Tacoma International
3h 22m
Seasonal
Airbus A220-300
DL 2530
Delta
07:25 San Diego International, terminal 2
10:43 Seattle-Tacoma International
3h 18m
Seasonal
Airbus A220-300
AS 792
Alaska Airlines
09:21 San Diego International, terminal 2
12:36 Seattle-Tacoma International
3h 15m
Seasonal
Boeing 737-900
DL 2508
Delta
11:21 San Diego International, terminal 2
14:40 Seattle-Tacoma International
3h 19m
Seasonal
Airbus A320
DL 2533
Delta
13:45 San Diego International, terminal 2
16:57 Seattle-Tacoma International
3h 12m
Seasonal
Airbus A220-300
DL 2530
Delta
06:50 San Diego International, terminal 2
10:05 Seattle-Tacoma International
3h 15m
Seasonal
Airbus A220-300
DL 2508
Delta
11:05 San Diego International, terminal 2
14:22 Seattle-Tacoma International
3h 17m
Seasonal
Boeing 737-800
DL 2533
Delta
13:35 San Diego International, terminal 2
16:44 Seattle-Tacoma International
3h 9m
Seasonal
Airbus A220-100 Passenger
AS 608
Alaska Airlines
06:16 San Diego International, terminal 2
09:26 Seattle-Tacoma International
3h 10m
Seasonal
Boeing 737-900
AS 792
Alaska Airlines
08:36 San Diego International, terminal 2
11:48 Seattle-Tacoma International
3h 12m
Seasonal
Boeing 737-900
AS 1368
Alaska Airlines
11:04 San Diego International, terminal 2
14:13 Seattle-Tacoma International
3h 9m
Seasonal
Boeing 737-900
AS 683
Alaska Airlines
12:39 San Diego International, terminal 2
15:48 Seattle-Tacoma International
3h 9m
Seasonal
Boeing 737-900
WN 4642
Southwest Airlines
10:00 San Diego International, terminal 1
13:05 Seattle-Tacoma International
3h 5m
Seasonal
WN 1209
Southwest Airlines
09:20 San Diego International, terminal 1
12:25 Seattle-Tacoma International
3h 5m
Seasonal
Boeing 737
WN 4642
Southwest Airlines
07:00 San Diego International, terminal 1
10:05 Seattle-Tacoma International
3h 5m
Seasonal
AS 753
Alaska Airlines
07:00 San Diego International, terminal 2
10:05 Seattle-Tacoma International
3h 5m
Seasonal
Boeing 737-900
AS 1477
Alaska Airlines
09:00 San Diego International, terminal 2
12:03 Seattle-Tacoma International
3h 3m
Seasonal
Boeing 737-900
WN 4642
Southwest Airlines
09:45 San Diego International, terminal 1
12:50 Seattle-Tacoma International
3h 5m
Seasonal
AS 1383
Alaska Airlines
11:52 San Diego International, terminal 2
14:54 Seattle-Tacoma International
3h 2m
Seasonal
Boeing 737-900
AS 1347
Alaska Airlines
13:45 San Diego International, terminal 2
16:47 Seattle-Tacoma International
3h 2m
Seasonal
Boeing 737-900
WN 4642
Southwest Airlines
08:35 San Diego International, terminal 1
11:40 Seattle-Tacoma International
3h 5m
Seasonal
Boeing 737
WN 3139
Southwest Airlines
14:30 San Diego International, terminal 1
17:35 Seattle-Tacoma International
3h 5m
Seasonal
WN 4992
Southwest Airlines
08:30 San Diego International, terminal 1
11:40 Seattle-Tacoma International
3h 10m
Seasonal
WN 4278
Southwest Airlines
09:10 San Diego International, terminal 1
12:20 Seattle-Tacoma International
3h 10m
Seasonal
WN 4992
Southwest Airlines
10:00 San Diego International, terminal 1
13:05 Seattle-Tacoma International
3h 5m
Seasonal
Boeing 737-800
AS 1744
Alaska Airlines
06:15 San Diego International, terminal 2
09:17 Seattle-Tacoma International
3h 2m
Seasonal
Boeing 737-900
WN 4992
Southwest Airlines
09:45 San Diego International, terminal 1
12:55 Seattle-Tacoma International
3h 10m
Seasonal
Boeing 737
WN 408
Southwest Airlines
09:35 San Diego International, terminal 1
12:35 Seattle-Tacoma International
3h
Seasonal
Boeing 737-800
WN 408
Southwest Airlines
08:10 San Diego International, terminal 1
11:10 Seattle-Tacoma International
3h
Seasonal
Boeing 737
WN 408
Southwest Airlines
09:40 San Diego International, terminal 1
12:40 Seattle-Tacoma International
3h
Seasonal
Boeing 737
WN 408
Southwest Airlines
10:00 San Diego International, terminal 1
13:00 Seattle-Tacoma International
3h
Seasonal
Boeing 737
WN 3482
Southwest Airlines
08:20 San Diego International, terminal 1
11:20 Seattle-Tacoma International
3h
Seasonal
Boeing 737
WN 4339
Southwest Airlines
14:00 San Diego International, terminal 1
16:55 Seattle-Tacoma International
2h 55m
Seasonal
Boeing 737
WN 3482
Southwest Airlines
07:50 San Diego International, terminal 1
10:50 Seattle-Tacoma International
3h
Seasonal
Boeing 737
WN 3482
Southwest Airlines
10:00 San Diego International, terminal 1
13:00 Seattle-Tacoma International
3h
Seasonal
WN 3482
Southwest Airlines
08:35 San Diego International, terminal 1
11:45 Seattle-Tacoma International
3h 10m
Seasonal
WN 4339
Southwest Airlines
14:05 San Diego International, terminal 1
17:00 Seattle-Tacoma International
2h 55m
Seasonal
Boeing 737
AS 1604
Alaska Airlines
10:09 San Diego International, terminal 2
13:12 Seattle-Tacoma International
3h 3m
Seasonal
Boeing 737-900

Days of the week are taken from the schedule for the next 14 days; schedules change by season. The search shows seat availability and the price for your date.

Airlines flying San Diego to Seattle

Flights a week by schedule and the cheapest nonstop fare of each airline found by recent searches

Alaska Airlines43 a week Delta21 a week Southwest Airlines15 a week

Airports

Where flights from San Diego to Seattle depart and land

Departure from San Diego

San Diego International SAN

79 flights a week, terminals 1, 2, 2 mi (4 km) from the city centre

About the airport

Arrival in Seattle

Seattle-Tacoma International SEA

79 flights a week, 11 mi (18 km) from the city centre

About the airport

When to visit Seattle

Weather by month

Best time to visit: May, June, July, August and September, +17° to +25° by day. In November it is +10° by day and +5° at night, with 17 rainy days.

Jan
+8° +2° 16 days
Feb
+8° +2° 14 days
Mar
+11° +4° 15 days
Apr
+13° +6° 14 days
May
+17° +9° 11 days
Jun
+21° +12° 7 days
Jul
+25° +15° 1 days
Aug
+25° +15° 6 days
Sep
+21° +13° 7 days
Oct
+15° +9° 14 days
Nov
+10° +5° 17 days
Dec
+8° +4° 20 days

Daytime and night temperatures in °C, rainy days. Months with the most comfortable weather are in green. Long-term averages.

Frequently asked questions

How long is the flight from San Diego to Seattle?
A nonstop flight takes 3 hours 10 minutes on average, from 2h 55m to 5h 25m depending on the flight.
How far is Seattle from San Diego?
1,064 mi (1,712 km) in a straight line between the cities.
Which airlines fly nonstop from San Diego to Seattle?
Alaska Airlines (43 a week), Delta (21 a week) and Southwest Airlines (15 a week).
How many flights a day are there from San Diego to Seattle?
9 flights today and 79 a week, about 11.3 a day on average.
When are the first and last flights from San Diego to Seattle?
The first departure is at 06:15 (AS608), the last at 19:45 (AS1373). Local time.
What is the cheapest month to fly from San Diego to Seattle?
December 2026: tickets from $79. The most expensive is November 2026, from $128.
What is the cheapest upcoming date to fly from San Diego to Seattle?
19 December 2026 (Saturday): from $79 one way, with a connection, by recent searches. The search shows the price for your dates.
Which airline is the cheapest from San Diego to Seattle?
Alaska Airlines: nonstop tickets from $95 on 24 December by recent searches. Prices change daily, so compare the sellers in the search.
Which San Diego airport do flights to Seattle leave from?
San Diego International (79 a week).