Plan to arrive at SAN at least two hours before your flight to avoid stress from traffic congestion near the airport.
$83+ Cheap flights from San Diego to Seattle (SAN - SEA)
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 7/9. Fares are subject to change and may not be available on all flights or dates of travel.
SAN — SEA
Jun 17 — Jun 241
1 adult, Economy
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Find cheap flights from San Diego to Seattle with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
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Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheapflights Tip: The best prices from San Diego to Seattle/Tacoma Intl are usually found in January or October, booked 63 days in advance, depart on a Friday or Thursday and return on a Tuesday
Cheap flight deals from San Diego to Seattle
Discover tips and strategies to find the most affordable flight options for your journey from San Diego (SAN) to Seattle (SEA). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated June 12, 2025.
Round-trip from | $174 (Mytrip) |
|---|---|
One-way from | $83 (Mytrip) |
Popular in | July |
Cheapest in | January |
Average price | $273 |
Good round-trip deal | $260 or less |
Good one-way deal | $156 or less |
Find flight deals from San Diego to Seattle
Cheapest flights from San Diego to SeattleExplore the most affordable flight options available from San Diego to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 12, 2025.
Explore the most affordable flight options available from San Diego to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 12, 2025.
This Mytrip deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/209:09 amSAN - SEA
1 stop6h 44mSpirit Airlines
Wed 9/244:58 pmSEA - SAN
1 stop21h 13mSpirit Airlines
Deal found 6/10![Spirit Airlines logo]()
$174
This Delta deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/1311:10 amSAN - SEA
Nonstop3h 06mDelta
Tue 8/1910:03 amSEA - SAN
Nonstop2h 59mDelta
Deal found 6/10![Delta logo]()
$177
This Southwest deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/198:30 amSAN - SEA
1 stop6h 40mSouthwest
Tue 8/268:00 amSEA - SAN
1 stop4h 20mSouthwest
Deal found 6/11![Southwest logo]()
$192
This Cheapflightsfares deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/216:15 amSAN - SEA
Nonstop3h 10mHawaiian Airlines
Mon 8/256:59 pmSEA - SAN
Nonstop2h 54mHawaiian Airlines
Deal found 6/10![Hawaiian Airlines logo]()
$194
This Alaska Airlines deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/66:15 amSAN - SEA
1 stop5h 11mAlaska Airlines
Wed 8/1311:41 amSEA - SAN
Nonstop2h 57mAlaska Airlines
Deal found 6/10![Alaska Airlines logo]()
$200
This FlightHub deal was found by Cheapflights users on 6/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/219:34 amSAN - SEA
1 stop7h 52mMultiple Airlines
Mon 8/254:58 pmSEA - SAN
1 stop16h 16mMultiple Airlines
Deal found 6/9![Multiple Airlines logo]()
$205
This Booking.com deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/256:51 pmSAN - SEA
1 stop19h 20mFrontier
Sat 6/2812:13 pmSEA - SAN
1 stop19h 31mFrontier
Deal found 6/10![Frontier logo]()
$241
This United Airlines deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/206:15 amSAN - SEA
1 stop7h 31mUnited Airlines
Sun 7/275:10 amSEA - SAN
1 stop5h 02mUnited Airlines
Deal found 6/11![United Airlines logo]()
$247
Cheapflights Fare Finder
Customize your flight search to find flights from San Diego to Seattle that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated June 12, 2025.
Use the filters below to find and compare flights from San Diego to Seattle that are best for you.
Fly from
San Diego
Fly to
Seattle
Route
Depart
Return
Price
San DiegoSeattle
SAN - SEA
SANSEA
San Diego
Sun 9/7
9:09 am-3:53 pm
1 stop6h 44m
Seattle/Tacoma Intl
Mon 9/15
4:58 pm-8:14 am
1 stop15h 16m
$175
San DiegoSeattle
SAN - SEA
SANSEA
San Diego
Wed 8/13
11:10 am-2:16 pm
Nonstop3h 06m
Seattle/Tacoma Intl
Tue 8/19
10:03 am-1:02 pm
Nonstop2h 59m
$177
San DiegoSeattle
SAN - SEA
SANSEA
San Diego
Tue 8/19
8:30 am-3:10 pm
1 stop6h 40m
Seattle/Tacoma Intl
Tue 8/26
8:00 am-12:20 pm
1 stop4h 20m
$192
San DiegoSeattle
SAN - SEA
SANSEA
San Diego
Thu 8/21
6:15 am-9:25 am
Nonstop3h 10m
Seattle/Tacoma Intl
Mon 8/25
7:59 pm-10:53 pm
Nonstop2h 54m
$194
San DiegoSeattle
SAN - SEA
SANSEA
San Diego
Wed 8/6
6:15 am-11:26 am
1 stop5h 11m
Seattle/Tacoma Intl
Wed 8/13
11:41 am-2:38 pm
Nonstop2h 57m
$200
San DiegoSeattle
SAN - SEA
SANSEA
San Diego
Thu 8/21
9:34 am-5:26 pm
1 stop7h 52m
Seattle/Tacoma Intl
Mon 8/25
4:58 pm-9:14 am
1 stop16h 16m
$205
San DiegoSeattle
SAN - SEA
SANSEA
San Diego
Wed 6/25
6:51 pm-2:11 pm
1 stop19h 20m
Seattle/Tacoma Intl
Sat 6/28
12:13 pm-7:44 am
1 stop19h 31m
$241
San DiegoSeattle
SAN - SEA
SANSEA
San Diego
Wed 7/9
3:57 pm-4:25 pm
1 stop24h 28m
$83
San DiegoSeattle
SAN - SEA
SANSEA
San Diego
Tue 8/12
7:30 am-10:34 am
Nonstop3h 04m
$89
San DiegoSeattle
SAN - SEA
SANSEA
San Diego
Sat 8/16
12:23 pm-5:10 pm
1 stop4h 47m
$92
Showing 1-10 of 14 results
The best insider tips for San Diego to Seattle flights
Snippets provided in this section are AI-generated based on a summarization of Cheapflights-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.
Cheapflights partnered with top experts to bring you the best recommendations for your San Diego to Seattle trip
Best time to book a flight from San Diego to Seattle
Have a flexible travel schedule? Discover the best time to fly to Seattle from San Diego with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from San Diego to Seattle
How far ahead should I book a flight from San Diego to Seattle?
Use this chart to determine the optimal time to book a round-trip flight from San Diego to Seattle. Price data was last updated on June 9, 2025.
The price you pay for your flight from San Diego to Seattle may vary depending on when you book. For the best chance of a lower fare, look to book 63 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.
What is the cheapest month to book a flight from San Diego to Seattle?
Currently, January is the cheapest month in which you can book a flight from San Diego to Seattle (average of $238). Flying from San Diego to Seattle in July is currently the most expensive (average of $391). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
What is the cheapest time of day to fly from SAN to SEA?
Find hourly flight availability from San Diego to Seattle. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated June 12, 2025.
It’s typically best to fly out from San Diego to Seattle in the evening. Doing so could potentially save you 25% on the flight price compared to flying in the morning, which is usually more expensive.
What is the cheapest day to fly from San Diego to Seattle?
Use this chart to determine the cheapest time to fly round-trip from San Diego to Seattle. Price data was last updated on June 8, 2025.
Travelers seeking maximum savings on their San Diego to Seattle flight should consider departing on Thursday evenings when fares are most often at their lowest. Monday evenings flights should be avoided if possible as fares are typically the most expensive at this time.
Weekly flight availability from San Diego to Seattle
Explore weekly flight availability from San Diego to Seattle. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated June 12, 2025.
The most flights from SAN to SEA are scheduled on a Thursday (62 on average). You will have fewer flight options on Friday, which is when the least amount of flights are scheduled (25 on average).
Rainfall in Seattle by month
Plan your trip to Seattle by taking into account the average rainfall totals by month.
In terms of precipitation, rainfall in Seattle ranges from 0.7 - 6.6 inches per month. November is typically the wettest month, when rainfall can reach 6.6 in. July is typically the driest time to visit Seattle when rainfall is around 0.7 in.
Temperature in Seattle by month
Plan your trip to Seattle by taking into account the average temperature totals by month.
If weather is an important factor for your trip to Seattle, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 66.2 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 41.0 F).
Reviews of airlines servicing Seattle
Get insights into the airlines that provide service to Seattle. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Seattle. Reviews last updated June 12, 2025.
Read through reviews of airlines operating flights from San Diego to Seattle, such as Alaska Airlines, Southwest and Delta. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Entertainment
7.1
Crew
8.5
Overall
8.0
Comfort
7.8
Boarding
8.1
Food
7.1
Reviews
1 / 20
10.0
ExcellentCheri,Jan 2025
FAT - SEA
Entertainment
7.1
Crew
8.5
Overall
8.0
Comfort
7.8
Boarding
8.1
Food
7.1
Reviews
1 / 20
10.0
ExcellentCheri,Jan 2025
FAT - SEA
Entertainment
7.1
Crew
8.5
Overall
8.0
Comfort
7.8
Boarding
8.1
Food
7.1
Reviews
1 / 20
10.0
ExcellentCheri,Jan 2025
FAT - SEA
Entertainment
7.1
Crew
8.5
Overall
8.0
Comfort
7.8
Boarding
8.1
Food
7.1
Reviews
1 / 20
10.0
ExcellentCheri,Jan 2025
FAT - SEA
Entertainment
7.1
Crew
8.5
Overall
8.0
Comfort
7.8
Boarding
8.1
Food
7.1
Reviews
1 / 20
10.0
ExcellentCheri,Jan 2025
FAT - SEA
Entertainment
7.1
Crew
8.5
Overall
8.0
Comfort
7.8
Boarding
8.1
Food
7.1
Reviews
1 / 20
10.0
ExcellentCheri,Jan 2025
FAT - SEA
Related info for your journey
Find useful and relevant information for your journey from San Diego to Seattle. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near San Diego?
Book flights to San Diego if you plan to visit one of these locationsSeaTac
Tukwila
Tacoma
Lakewood
Ocean Shores
Lacey
Leavenworth
Federal Way
Lynnwood
Olympia
Shoreline
Kent
Cle Elum
Centralia
Kirkland
Aberdeen
Renton
Shelton
Silverdale
Issaquah
Browse thousands of different options on Cheapflights for your next trip
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Alternative routes for San Diego to Seattle
See prices for flight routes from nearby airports that may be better suited for you.
Top 8 airlines flying from San Diego to Seattle
Discover the top 8 airlines that operate flights from San Diego to Seattle. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated June 12, 2025.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$77 | Average$161 | FlexibilityNo cancel fee | On-time65% | |
| Cheapest$100 | Average$168 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$113 | Average$417 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$117 | Average$233 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$135 | Average$274 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$154 | Average$291 | FlexibilityNo cancel fee | On-time85% | |
| Cheapest$176 | Average$356 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$196 | Average$306 | FlexibilityNo cancel fee | On-time63% |