Cheap Flights from San Diego to Seattle
Browse current best options from San Diego. Become a member to unlock all deals and get alerts when new deals appear.
Deals from
San Diego
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Prices updated 24 days ago
486,190 searches this week
171 airlines compared
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Fares are subject to change and may not be available for all dates. (Data last updated May 29, 2026.)
Today’s best flight deals from San Diego to Seattle
Explore current cheapest deals departing from San Diego to Seattle
Round trip
Sort by: Cheapest
August 19 - August 26
SAN - Seattle
$157
$137
Round trip
August 22 - August 31
SAN - Seattle
$150
$143
Round trip
September 4 - September 14
SAN - Seattle
$122
$143
Round trip
July 7 - July 14
SAN - Seattle
$151
$158
Round trip
July 22 - July 28
SAN - Seattle
$146
$158
Round trip
August 12 - August 18
SAN - Seattle
$156
$158
Round trip
August 4 - August 12
SAN - Seattle
$145
$158
Round trip
September 9 - September 15
SAN - Everett
$190
$158
Round trip
September 1 - September 8
SAN - Seattle
$130
$158
Round trip
August 25 - August 27
SAN - Seattle
$164
$159
Round trip
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Route Intelligence — 486,190 Searches this Week
Insights for flights from San Diego to Seattle
How much is a round trip from San Diego to Seattle
Regular price: $123 - $268
Prices for flights from San Diego to Seattle are currently within the regular range.
Regular prices for flights from San Diego to Seattle typically range from $123 to $268. The current lowest deal is $137 with Alaska Airlines, Inc. for travel from Aug 19-Aug 26.
now $137
Low $123
High $268
The cheapest time to fly from San Diego to Seattle
The cheapest month to fly from San Diego to Seattle is December, with a median price of $92. The most expensive month is March, with a median price of $502. Prices are generally lower from January to December.
December
Flights from $92
March
Flights from $502
Direct flights from San Diego to Seattle
Alaska Airlines, Inc.
Last-minute flights going from San Diego to Seattle
Fri, Jul 3
SAN - Everett
San Diego (SAN) - Everett (PAE)
Alaska Airlines, Inc.
$328
$258
One-way
Tue, Jul 7
SAN - Seattle
San Diego (SAN) - Seattle (SEA)
Alaska Airlines, Inc.
$151
$158
One-way
Tue, Jul 7
SAN - Seattle
San Diego (SAN) - Seattle (SEA)
Alaska Airlines, Inc.
$135
$172
One-way
Tue, Jul 7
SAN - Seattle
San Diego (SAN) - Seattle (SEA)
Deutsche Luft Hansa
$147
$177
One-way
Wed, Jul 8
SAN - Seattle
San Diego (SAN) - Seattle (SEA)
Alaska Airlines, Inc.
$152
$177
One-way
Wed, Jul 8
SAN - Seattle
San Diego (SAN) - Seattle (SEA)
$152
$177
One-way
Biggest price drops on these dates for flights from San Diego to Seattle
Dec 4 - Dec 7
$344 → $189
45%
Aug 20 - Aug 23
$358 → $224
37%
Dec 12 - Dec 14
$352 → $225
36%
Dec 2 - Dec 6
$345 → $226
34%
Popular Airports to fly from San Diego to Seattle
San Diego - Seattle route insights
💸 Price insights
Recent fares are above the typical level
Recent fares for San Diego to Seattle are above the typical level, with a median price of $327.
📅 Best time to fly
Fly in December for the best prices
Historically, December offers the lowest median price at $92, followed by January at $107.
⏱️ Flight duration
Typical flight time is 6h 2m
The median flight duration for this route is 6 hours and 2 minutes.
✈️ Airlines & availability
62.8% of deals are direct flights
Most deals are for direct flights, with connecting flights typically having 1 stopover.
🏆 Airline highlight
Alaska Airlines, Inc. offers direct flights
Alaska Airlines, Inc. has direct flights available for the San Diego to Seattle route.
🎯 Booking tip
Deals are frequent for this route
Deals for flights from San Diego to Seattle are frequent, with over 1 deal per day.
San Diego main airports to depart from
San Diego International (SAN)
San Diego International is a convenient departure airport for flights from San Diego to Seattle.
📍 ~5 km from San Diego city center (reachable by car).
💸 Flights from ~$137
McClellan–Palomar (CLD)
McClellan–Palomar offers an alternative departure option for flights from San Diego to Seattle.
📍 ~40 km from San Diego city center (reachable by car).
💸 Flights from ~$319
Seattle main airports to arrive at
Seattle–Tacoma International (SEA)
Seattle–Tacoma International Airport is a primary arrival option for flights to Seattle.
📍 ~18 km from Seattle (reachable by car)
💸 Flights from ~$137
Boeing Field (BFI)
Boeing Field offers an alternative arrival point for flights heading to the Seattle area.
📍 ~8 km from Seattle (reachable by car)
💸 Flights from ~$658
Kenmore Air Harbor Seaplane Base (LKE)
Kenmore Air Harbor Seaplane Base serves as a unique arrival option for Seattle-bound travelers.
📍 ~3 km from Seattle (reachable by car)
💸 Flights from ~$837
Airports nearby Seattle used as alternative
Paine Field Everett (PAE)
Paine Field Everett offers a convenient alternative for North Seattle residents with shorter security wait times.
📍 ~35 km from destination city (reachable by car)
💸 Flights from ~$158
Portland International (PDX)
Portland International is a major international hub that can offer competitive fares for long-haul flights.
📍 ~230 km from destination city (reachable by car or train)
💸 Flights from ~$127
Vancouver International (YVR)
Vancouver International is a major international gateway with extensive transpacific and European flight options.
📍 ~230 km from destination city (reachable by car)
💸 Flights from ~$249
Bellingham International (BLI)
Bellingham International is a primary low-cost carrier airport, often featuring budget-friendly fares.
📍 ~145 km from destination city (reachable by car)
💸 Flights from ~$163
Abbotsford International (YXX)
Abbotsford International is an alternative low-cost gateway for Canadian domestic connections.
📍 ~155 km from destination city (reachable by car)
💸 Flights from ~$266
Business & First Class Flight Deals to Seattle
Discover luxury on the budget with premium cabin class on flights from San Diego to Seattle.
Elite
Best Elite deals to Seattle
Exclusive daily First Class, Business Class, and Premium Economy flight deals, refreshed every 24 hours.
From SAN
Elite
Sep 08
Seattle, United States
87% AI deal score
$2,378
$800
Save $1,578
From SAN
Elite
Jul 13
Seattle, United States
85% AI deal score
$1,637
$832
Save $805
From CLD
Elite
Aug 06
Seattle, United States
85% AI deal score
$2,036
$960
Save $1,076
From SAN
Elite
Aug 07
Seattle, United States
85% AI deal score
$2,102
$1,064
Save $1,038
From SAN
Elite
Aug 06
Seattle, United States
85% AI deal score
$2,141
$1,068
Save $1,073
From SAN
Elite
Sep 09
Seattle, United States
84% AI deal score
$939
$552
Save $387
From SAN
Elite
Aug 08
Seattle, United States
84% AI deal score
$2,102
$837
Save $1,265
From CLD
Elite
Jul 07
Seattle, United States
84% AI deal score
$1,624
$840
Save $784
From CLD
Elite
Jul 10
Seattle, United States
84% AI deal score
$1,651
$865
Save $786
From CLD
Elite
Jul 13
Seattle, United States
84% AI deal score
$1,642
$870
Save $772
From CLD
Elite
Jun 30
Seattle, United States
84% AI deal score
$1,708
$899
Save $809
From SAN
Elite
Aug 04
Seattle, United States
84% AI deal score
$2,102
$1,077
Save $1,025
From SAN
Elite
Aug 05
Seattle, United States
84% AI deal score
$2,102
$1,097
Save $1,005
From SAN
Elite
Aug 21
Seattle, United States
83% AI deal score
$2,121
$863
Save $1,258
From CLD
Elite
Jul 18
Seattle, United States
83% AI deal score
$1,617
$865
Save $752
From SAN
Elite
Jun 29
Seattle, United States
83% AI deal score
$1,729
$953
Save $776
From SAN
Elite
Aug 14
Seattle, United States
82% AI deal score
$2,087
$719
Save $1,368
From SAN
Elite
Aug 07
Seattle, United States
82% AI deal score
$2,102
$918
Save $1,184
From SAN
Elite
Aug 04
Seattle, United States
82% AI deal score
$2,141
$945
Save $1,196
From SAN
Elite
Jul 10
Seattle, United States
81% AI deal score
$1,671
$874
Save $797
From SAN
Elite
Jul 10
Seattle, United States
81% AI deal score
$1,671
$874
Save $797
From SAN
Elite
Aug 07
Seattle, United States
81% AI deal score
$2,102
$943
Save $1,159
From SAN
Elite
Aug 05
Seattle, United States
81% AI deal score
$2,102
$968
Save $1,134
From SAN
Elite
Aug 06
Seattle, United States
81% AI deal score
$2,102
$968
Save $1,134
From SAN
Elite
Aug 06
Seattle, United States
81% AI deal score
$2,102
$977
Save $1,125
From SAN
Elite
Jun 26
Seattle, United States
80% AI deal score
$1,322
$675
Save $647
From SAN
Elite
Jul 07
Seattle, United States
80% AI deal score
$1,644
$791
Save $853
From SAN
Elite
Aug 20
Seattle, United States
80% AI deal score
$2,077
$807
Save $1,270
From SAN
Elite
Jun 30
Seattle, United States
80% AI deal score
$1,727
$933
Save $794
From SAN
Elite
Aug 13
Seattle, United States
78% AI deal score
$865
$597
Save $268
From SAN
Elite
Aug 06
Seattle, United States
78% AI deal score
$872
$597
Save $275
From SAN
Elite
Aug 11
Seattle, United States
78% AI deal score
$883
$607
Save $276
From SAN
Elite
Jul 02
Seattle, United States
78% AI deal score
$1,653
$1,006
Save $647
From SAN
Elite
Jul 11
Seattle, United States
77% AI deal score
$1,235
$732
Save $503
From SAN
Elite
Aug 08
Seattle, United States
76% AI deal score
$1,124
$707
Save $417
From SAN
Elite
Aug 20
Seattle, United States
76% AI deal score
$840
$557
Save $283
From SAN
Elite
Jul 07
Seattle, United States
75% AI deal score
$1,139
$751
Save $388
From SAN
Elite
Aug 21
Seattle, United States
75% AI deal score
$858
$587
Save $271
From SAN
Elite
Aug 23
Seattle, United States
73% AI deal score
$716
$547
Save $169
From SAN
Elite
Aug 14
Seattle, United States
73% AI deal score
$776
$577
Save $199
From SAN
Elite
Aug 11
Seattle, United States
72% AI deal score
$710
$547
Save $163
From SAN
Elite
Aug 05
Seattle, United States
72% AI deal score
$713
$547
Save $166
From SAN
Elite
Jul 07
Seattle, United States
72% AI deal score
$694
$547
Save $147
From SAN
Elite
Jul 15
Seattle, United States
72% AI deal score
$689
$547
Save $142
From SAN
Elite
Aug 18
Seattle, United States
72% AI deal score
$706
$547
Save $159
From SAN
Elite
Sep 09
Seattle, United States
72% AI deal score
$731
$547
Save $184
From SAN
Elite
Aug 25
Seattle, United States
72% AI deal score
$712
$547
Save $165
From SAN
Elite
Aug 25
Seattle, United States
72% AI deal score
$707
$547
Save $160
From SAN
Elite
Sep 01
Seattle, United States
72% AI deal score
$695
$547
Save $148
From SAN
Elite
Aug 11
Seattle, United States
72% AI deal score
$694
$547
Save $147
From SAN
Elite
Jul 22
Seattle, United States
72% AI deal score
$759
$592
Save $167
From SAN
Elite
Nov 11
Seattle, United States
72% AI deal score
$765
$597
Save $168
From SAN
Elite
Oct 01
Seattle, United States
70% AI deal score
$712
$597
Save $115
From SAN
Elite
Jul 07
Seattle, United States
68% AI deal score
$705
$552
Save $153
From SAN
Elite
Jul 11
Seattle, United States
68% AI deal score
$783
$597
Save $186
From SAN
Elite
Aug 08
Seattle, United States
68% AI deal score
$777
$617
Save $160
From SAN
Elite
Sep 19
Seattle, United States
66% AI deal score
$654
$572
Save $82
From SAN
Elite
Jul 10
Seattle, United States
66% AI deal score
$674
$597
Save $77
From SAN
Elite
Sep 08
Seattle, United States
66% AI deal score
$696
$607
Save $89
From SAN
Elite
Sep 27
Seattle, United States
66% AI deal score
$715
$607
Save $108
From SAN
Elite
Sep 18
Seattle, United States
65% AI deal score
$653
$587
Save $66
From SAN
Elite
Jun 17
Seattle, United States
48% AI deal score
$1,257
From SAN
Elite
Jul 10
Seattle, United States
47% AI deal score
$680
$660
Save $20
From SAN
Elite
Jul 02
Seattle, United States
47% AI deal score
$722
$704
Save $18
From SAN
Elite
Jun 25
Seattle, United States
47% AI deal score
$987
$947
Save $40
From SAN
Elite
Jun 30
Seattle, United States
46% AI deal score
$823
$811
Save $12
From SAN
Elite
Jun 29
Seattle, United States
46% AI deal score
$871
From SAN
Elite
Jun 26
Seattle, United States
46% AI deal score
$950
$947
Save $3
From SAN
Elite
Jun 17
Seattle, United States
43% AI deal score
$1,256
From SAN
Elite
Jun 17
Seattle, United States
43% AI deal score
$1,256