Cheap flights from San Diego, CA to Seattle, WA
One search, all the flights
We find you the best flight deals and travel hacks so that you can choose how to book.
Rise above all travel anxieties
With the Kiwi.com Guarantee we have your back with whatever happens.
Trusted by millions
Join over 10 million yearly travellers booking with ease.
How much do flights to Seattle cost?
Key info about flying to Seattle
Great deals from San Diego to Seattle
Prices updated:
Prices updated:
Not happy with the results? Try some of our useful filters
Search by stops
Search by carrier
Search by price
Search by departure date
Weekly direct flights
Discover the top airlines offering direct flights from San Diego to Seattle in the next month. You’ll find the number of daily direct flights per airline in the chart.
| Airline | Mon 16.12 | Tue 17.12 | Wed 18.12 | Thu 19.12 | Fri 20.12 | Sat 21.12 | Sun 22.12 |
|---|---|---|---|---|---|---|---|
| --- | --- | 4 | 7 | 8 | 6 | 8 | |
| Weekly flights: 33 total | Daily flights: 4.71 average | Most flights: Friday 8 flights |
| Airline | Mon 23.12 | Tue 24.12 | Wed 25.12 | Thu 26.12 | Fri 27.12 | Sat 28.12 | Sun 29.12 |
|---|---|---|---|---|---|---|---|
| 8 | 7 | 8 | 8 | 7 | 4 | 8 | |
| Weekly flights: 50 total | Daily flights: 7.14 average | Most flights: Monday 8 flights |
| Airline | Mon 30.12 | Tue 31.12 | Wed 01.01 | Thu 02.01 | Fri 03.01 | Sat 04.01 | Sun 05.01 |
|---|---|---|---|---|---|---|---|
| 8 | 8 | 8 | 8 | 8 | 6 | 8 | |
| Weekly flights: 54 total | Daily flights: 7.71 average | Most flights: Monday 8 flights |
| Airline | Mon 06.01 | Tue 07.01 | Wed 08.01 | Thu 09.01 | Fri 10.01 | Sat 11.01 | Sun 12.01 |
|---|---|---|---|---|---|---|---|
| 7 | 7 | 7 | 7 | 7 | 7 | 7 | |
| Weekly flights: 49 total | Daily flights: 7 average | Most flights: Monday 7 flights |
Check-in for a flight from San Diego to Seattle
| Name | Carrier code | IATA Code | Passport needed during booking |
|---|---|---|---|
| Alaska Airlines | ASA | AS | No |
| United Airlines | UAL | UA | Yes |
Online check-in is not available for these airlines.
Weather in Seattle
Average Weather
| Month | Average monthly max temperature | Average monthly min temperature |
| January | 7°C | 2°C |
| February | 8°C | 1°C |
| March | 10°C | 3°C |
| April | 13°C | 4°C |
| May | 18°C | 8°C |
| June | 21°C | 10°C |
| July | 25°C | 13°C |
| August | 26°C | 14°C |
| September | 22°C | 11°C |
| October | 15°C | 7°C |
| November | 10°C | 4°C |
| December | 6°C | 1°C |
14 day forecast
Seattle travel tips
Seattle hosts the tallest ferris wheel on the whole West Coast. It’s a great chance to observe Elliott Bay at its finest. The wheel is equipped with half a million LED lights and offers a light show every Friday, Saturday, and Sunday from 10 p.m. Private dining with a view is also available, for extra money, sure thing. Make your Seattle Great Wheel experience bright!
Never jaywalk in Seattle. Otherwise, you will get a fine. Moreover, everyone will figure out that you are an alien here. Act as locals do. Cross the street when it’s your turn. Take care!
In Seattle, you won’t encounter any problems whether you want to pay by a card or in cash. Both are accepted. Nowadays, cards are preferable but cash is also in use. Don’t worry about the method of payment.
Frequently asked questions
Planning a trip? Thanks to our Virtual Interlining algorithm, we offer billions of route combinations between any A and any B in the world by plane, train, and bus. Find the cheapest routes and best deals for you, as well as the best dates on which to travel.
Explore alternative trips
Flights from San Diego
Flights to Seattle
Airports near San Diego
Airports near Seattle
Get more out of Kiwi.com with our mobile application
Find out more about the Kiwi.com app on kiwi.com/mobile . With our app you can search for the best plane connections. The Kiwi.com mobile app offers cheap flights, access to hidden features, travel hacks and special offers.
Download boarding passes
One-click booking
Get exclusive offers and prices
Mobile trip notifications