Cheap flights from San Diego to Seattle (SAN - SEA)

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The best prices from San Diego to Seattle are usually found in January or February, booked 33 days in advance, depart on a Tuesday or Wednesday and return on a Wednesday

How to find the cheapest flight from
San Diego (SAN) to Seattle (SEA)

All the information you need to plan the best SAN to SEA flight in 2021: compare San Diego to Seattle flight prices with the expected peak season, weather and rainfall in Seattle.
SAN - SEA
Price
$97 - $217
SEA
Temperature
46.4 - 77 °F
SEA
Rainfall
0.7 - 6.5 inches

Popular in

December

High demand for flights, 26% potential price rise

Cheapest in

January

Best time to find cheap flights, 40% potential price drop

Round-trip from

$97

From San Diego to Seattle

One-way from

$84

One-way flight from San Diego to Seattle

Flight route prices based on searches on Cheapflights within the last 3 days, monthly prices based on aggregated historical data.
What is the cheapest day to fly round-trip from San Diego to Seattle?

Flying to your destination on a Saturday can be more expensive, but this shouldn’t discourage you from finding affordable options to get to Seattle. Check prices with Cheapflights to find a great deal for your trip.

How far in advance should I book a flight from San Diego to Seattle?

Users have found that booking a flight from San Diego to Seattle at least 28 days early can save you up to 71% on average compared to booking a flight this week. If booking 28 days before your flight isn’t an option for you, users have found flights from San Diego to Seattle for as little as $123 when booking for a departure date within the next two weeks. You can also check prices now. Some users have found airline tickets as low as $189 for flights departing within the next 3 days.

What is the cheapest month to fly from San Diego to Seattle?

Due to multiple factors, expect to potentially pay more when booking in December. For low rates, April can be a great choice for travel to Seattle. Flights to Seattle from San Diego in April are about $115 on average during April, but can be found for as low as $36.

When is the cheapest time to fly from San Diego to Seattle (SAN - SEA)?

It’s optimal to fly from San Diego to Seattle in the evening. By choosing this option you can save up to 17% on the cost of your flight, compared to a flight at noon.

Cheap flights from San Diego to Seattle in May, June 2021

The best prices found for SAN to SEA flights for May, June
8 Jun - 10 Jun
$92pp
SAN
San Diego
Alaska Airlines
Non-Stop
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
Alaska Airlines
Non-Stop
SAN
San Diego
26 May - 30 May
$108pp
SAN
San Diego
Multiple Airlines
 
1 STOP
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
Alaska Airlines
Non-Stop
SAN
San Diego
12 Jun - 12 Jun
$112pp
SAN
San Diego
Alaska Airlines
Non-Stop
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
Alaska Airlines
Non-Stop
SAN
San Diego

San Diego to Seattle 2021 flight deals

Cheap flights to Seattle from San Diego found for this year
8 Jun - 10 Jun
$92pp
SAN
San Diego
Alaska Airlines
Non-Stop
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
Alaska Airlines
Non-Stop
SAN
San Diego
26 May - 30 May
$108pp
SAN
San Diego
Multiple Airlines
 
1 STOP
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
Alaska Airlines
Non-Stop
SAN
San Diego
12 Jun - 12 Jun
$112pp
SAN
San Diego
Alaska Airlines
Non-Stop
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
Alaska Airlines
Non-Stop
SAN
San Diego

Non-stop flights to Seattle from San Diego

Save time with San Diego to Seattle direct flight deals
8 Jun - 10 Jun
$92pp
SAN
San Diego
Alaska Airlines
Non-Stop
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
Alaska Airlines
Non-Stop
SAN
San Diego
12 Jun - 12 Jun
$112pp
SAN
San Diego
Alaska Airlines
Non-Stop
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
Alaska Airlines
Non-Stop
SAN
San Diego
11 Jun - 13 Jun
$117pp
SAN
San Diego
Alaska Airlines
Non-Stop
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
Alaska Airlines
Non-Stop
SAN
San Diego

Last minute flights from San Diego to Seattle

Late deals on round-trip flights to Seattle from San Diego, departing today and this week
21 May - 26 May
$132pp
SAN
San Diego
Multiple Airlines
 
1 STOP
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
Multiple Airlines
 
1 STOP
SAN
San Diego
21 May - 26 May
$148pp
SAN
San Diego
Multiple Airlines
 
1 STOP
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
Alaska Airlines
Non-Stop
SAN
San Diego
20 May - 24 May
$152pp
SAN
San Diego
Spirit Airlines
 
1 STOP
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
Spirit Airlines
 
1 STOP
SAN
San Diego

One-way flights to Seattle from San Diego

The cheapest one-way flights from San Diego to Seattle
8:42 am - 1:34 pm
Spirit Airlines
1 Stop
4h 52m
SAN - SEA
Spirit Airlines
$84
Gotogate
1:45 pm - 6:15 pm
United Airlines
1 Stop
4h 30m
SAN - SEA
United Airlines
$86
United
3:02 pm - 7:56 pm
Delta
1 Stop
4h 54m
SAN - SEA
Delta
$98
Delta

Related info for your journey

Useful info, stats and facts about <span class="emphasized">San Diego</span> to <span class="emphasized">Seattle</span> flights.

Flight FAQs

From San Diego to Seattle

Are flight prices decreasing from San Diego to Seattle due to COVID-19 (coronavirus)?

At this time, Cheapflights has noticed price decreases for many domestic flights due to COVID-19. Travel is not necessarily recommended at this time, and flights may be prone to cancellation: please check with local authorities in both San Diego and Seattle for travel alerts, and be sure to review the airline's cancellation policy and travel advisories before booking. For more information, please view our post on what to know about COVID-19 (coronavirus) and travel.

What safety measures are being taken by airlines flying from San Diego to Seattle/Tacoma Intl to control the spread of COVID-19?

Airlines globally have implemented additional safety measures to accommodate you. Alaska Airlines is one of them. Airline carriers are regularly disinfecting and sanitizing their aircraft. Masks are provided and are mandatory while on board. Pre-flight testing for symptoms and antibodies, alongside socially distanced seating (for a limited time) will work towards keeping travelers safer while flying from San Diego to Seattle/Tacoma Intl. Policies will vary by airline.

Which airlines flying from San Diego to Seattle/Tacoma Intl have flexible cancellations due to COVID-19?

Delta, Alaska Airlines, and Spirit Airlines are some of the carriers that may have flexible cancellation policies. You can use our site to filter for other airlines that may also have this kind of flexibility.

What airports do I use to fly from San Diego to Seattle?

If you book a flight from San Diego to Seattle, you will be flying from San Diego to Seattle/Tacoma Intl. Flights to Seattle/Tacoma Intl (SEA) from San Diego (SAN) take 2h 51m for a nonstop flight. There are 14 flights from San Diego to Seattle per day from 9 airlines.

Can I find flights from San Diego to Seattle for under $100 on Cheapflights?

Yes, there are multiple flights from San Diego to Seattle for under $100. The cheapest flight booked recently is on Alaska Airlines for just $92, but on average you can expect to pay $128.

Are there nonstop flights from San Diego to Seattle for under $100 on Cheapflights?

Cheapflights has at least 20 direct flights from San Diego to Seattle under $100. A good price for a nonstop flight from San Diego to Seattle is less than $139.

Are there last-minute flights available from San Diego to Seattle for under $200?

There are currently 20+ open flights from San Diego to Seattle within the next 7 days for less than $200.

What days are nonstop flights available from San Diego to Seattle?

Nonstop flights can be found on the following days: Sunday, Monday, Wednesday, Thursday, Friday, Saturday.

How popular is this flight route?

Flights from San Diego to Seattle/Tacoma Intl have been viewed 337 times in the past calendar month.

How many flights depart from San Diego to Seattle on average per day?

20 flight departures from San Diego to Seattle/Tacoma Intl per day on average.
Early Morning (Midnight to 6am) - 10% of flight departures
Morning (6am - Noon) - 35% of flight departures
Afternoon (Noon - 6pm) - 35% of flight departures
Evening (6pm - Midnight) - 20% of flight departures

Does it rain more in San Diego or Seattle?

When traveling, we recommend packing in preparation to handle common weather conditions. The rainfall in San Diego is typically less than Seattle. We can gather that this will continue over the next 3 days.

Is San Diego weather warmer or cooler than Seattle?

With an average temperature of 81 °F, peak weather can be found in August. As a traveler, expect to see changes in flight prices during that period. The temperatures in Seattle are colder than in San Diego.

How long is the flight from San Diego to Seattle?

Departing from San Diego to Seattle will take you 2h 54m. There are 1057 mi between San Diego and Seattle. This flight may include one or multiple stops.

What are the cheapest airlines flying from San Diego to Seattle round-trip?

Currently priced at $92, Alaska Airlines will fly you from San Diego to Seattle and back. In addition to Alaska Airlines, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Delta and Spirit Airlines - these airlines can fly you to your destination from $137 and $152, respectively. You may be able to fly from San Diego to Seattle for 42% less than the average price by searching for these airlines.

What are the cheapest airlines to fly from San Diego to Seattle one-way?

One-way options have recently been found by users for as low as $41 on Alaska Airlines. Other airlines that offer cheap prices include Frontier from $66 and Spirit Airlines from $69 one-way.

Alternative routes for San Diego to Seattle

See prices for flight routes from nearby airports that may be better suited for you.

Destination information for Seattle

Things to know before you go - useful duration and weather info for your trip from San Diego to Seattle.
Flight duration
2h 53m
Average temperature for May in Seattle
66.2 °F
Avg rainfall for May in Seattle
1.8 ″

Airports servicing San Diego

Airports servicing Seattle

Top 8 airlines flying from San Diego to Seattle

The chart below displays the airlines Cheapflights users traveling from San Diego to Seattle choose most often. Cheapest and average prices are based on aggregated data from the past 12 months.
Airline Cheapest Average Flexibility On-time COVID-19 safety
United Airlines
$67 $153 No cancel fee 69%
Spirit Airlines
$76 $168 No cancel fee 65%
Alaska Airlines
$68 $185 No cancel fee 75%
Delta
$68 $194 No cancel fee N/A
Frontier
$113 $227 No cancel fee 62%
American Airlines
$103 $270 No cancel fee 71%
Endeavor Airlines
$165 $301 No cancel fee N/A

We couldn't confirm the COVID-19 safety measures taken by Endeavor Airlines. Please check directly on their website for additional information.

Southwest
$191 $355 No cancel fee 63%

Hourly flight availability from San Diego to Seattle

See what time of day planes typically take off from San Diego towards Seattle.
Morning 6 AM to noon 51% of SAN to SEA departures
Afternoon Noon to 6 PM 35% of SAN to SEA departures
Early morning Midnight to 6 AM 8% of SAN to SEA departures
Evening 6 PM to midnight 6% of SAN to SEA departures
Midnight
6 AM
Noon
6 PM
Weekly flight availability
from San Diego to Seattle
See how many times per day planes take to the skies headed from San Diego to Seattle.
Sunday
12 daily flights
Monday
17 daily flights
Tuesday
21 daily flights
Wednesday
11 daily flights
Thursday
15 daily flights
Friday
12 daily flights
Saturday
15 daily flights
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