Compare fares, departure times, stops and baggage details for this route, then open the full search when you are ready to check current availability and complete booking.
SEASANTue, 29 Sep
Fare checked before payment No hidden charges Transparent cancellation policy 24×7 booking support
Lowest fareUS$177Delta Air Lines
Fastest2h 45mgate to gate
Options found133flights on this route
Find your flightSEA → SAN
Seattle to San Diego flights
Compare fares, timings and baggage. Pick the flight that suits your trip.
Prices in USD
133 flight options
Fares are checked again before payment.
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AA
American Airlines
AA-7486
10:13
2026-09-29
SEATTLE (SEA)Seattle/tacoma International
3H :08 M
Non Stop
13:21
2026-09-29
San Diego (SAN)Lindberg Fld S. Diego
Non Refundable 7 Seat Left Economy
Check-in: 0 PiecesCabin: 2 Pieces
Type
Non Refundable
Fare Type
Publish
0 Pieces 2 Pieces
$222
Flight DetailsSEA to SAN - 3H :08 M
Baggage InfoCheck-in 0 Pieces - Cabin 2 Pieces
Fare RulesNon-refundable fare. Final rules are verified before booking.
AA
American Airlines
AA-7523
14:18
2026-09-29
SEATTLE (SEA)Seattle/tacoma International
2H :55 M
Non Stop
17:13
2026-09-29
San Diego (SAN)Lindberg Fld S. Diego
Non Refundable 7 Seat Left Economy
Check-in: 0 PiecesCabin: 2 Pieces
Type
Non Refundable
Fare Type
Publish
0 Pieces 2 Pieces
$222
Flight DetailsSEA to SAN - 2H :55 M
Baggage InfoCheck-in 0 Pieces - Cabin 2 Pieces
Fare RulesNon-refundable fare. Final rules are verified before booking.
United Airlines
UA-1505
08:30
2026-09-29
SEATTLE (SEA)Seattle/tacoma International
6H :20 M
1 Stop
DEN
· 1h 03m Denver (DEN), United States
14:50
2026-09-29
San Diego (SAN)Lindberg Fld S. Diego
Non Refundable 5 Seat Left Economy
Check-in: 0 PiecesCabin: 1 Pieces
Type
Non Refundable
Fare Type
Publish
0 Pieces 1 Pieces
$234
Flight DetailsSEA to SAN - 6H :20 M
Baggage InfoCheck-in 0 Pieces - Cabin 1 Pieces
Fare RulesNon-refundable fare. Final rules are verified before booking.
United Airlines
UA-1505
08:30
2026-09-29
SEATTLE (SEA)Seattle/tacoma International
8H :35 M
1 Stop
DEN
· 3h 18m Denver (DEN), United States
17:05
2026-09-29
San Diego (SAN)Lindberg Fld S. Diego
Non Refundable 5 Seat Left Economy
Check-in: 0 PiecesCabin: 1 Pieces
Type
Non Refundable
Fare Type
Publish
0 Pieces 1 Pieces
$234
Flight DetailsSEA to SAN - 8H :35 M
Baggage InfoCheck-in 0 Pieces - Cabin 1 Pieces
Fare RulesNon-refundable fare. Final rules are verified before booking.
Up to 120 of 133 options on this route. Open the full search to see them all with every filter.
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Seattle to San Diego fare highlights
Selected flight highlights for 29 Sep 2026.
Lowest fare$177Delta Air Lines07:15
Earliest departure$202United Airlines05:00
Shortest duration$177Delta Air Lines15:14
Night
00:00-05:59
$202United Airlines at 05:00Morning
06:00-11:59
$177Delta Air Lines at 07:15Afternoon
12:00-17:59
$177Delta Air Lines at 12:28Evening
18:00-23:59
$177Delta Air Lines at 19:41
Seattle to San Diego route details
Seattle (SEA)
Seattle/tacoma International
United States
GMT -8
Latitude: 47.449001
Longitude: -122.308998
San Diego (SAN)
Lindberg Fld S. Diego
United States
GMT -8
Latitude: 32.7336006165
Longitude: -117.190002441
Distance: Seattle (SEA), United States to San Diego (SAN), United States - 1,692.25 km
Flights shown for 29 Sep 2026. View all flights opens the complete search result.
Fares and hotel rates usually run higher around these dates. Booking earlier — or shifting a day or two — often costs less.
Busiest periods: Summer travel (15 Jun – 31 Aug), Holiday season (18 Dec – 02 Jan).
12OctColumbus DayMonday · in 34 days
12OctColumbus DayMonday · in 34 days
12OctIndigenous Peoples' DayMonday · in 34 days
11NovVeterans DayWednesday · in 64 days
26NovThanksgiving DayThursday · in 79 days
25DecChristmas DayFriday · in 108 days
Fixed-date national holidays. Festivals that follow the lunar calendar shift each year and are not listed here — check the exact date for your travel year.
Compare your journey
How to travel Seattle to San Diego
Every option we can actually book for you, compared on price and journey time.
Connecting flight₹19,098Longer — includes a stop116 options
Air distance is about 1,692 km. 4 airlines operate this route.
Road distance and coach duration are approximate estimates from the air distance, not a timetable.
Airlines flying from Seattle to San Diego
Compare fares, stops, baggage and refundability across the airlines flying this route.
AL
Alaska Airlines Seattle to San Diego flights
from $24982 flights
Fares from
$249
Non-stop
8 in these results
Departures
82 — compare timings in the list above
UN
United Airlines Seattle to San Diego flights
from $20222 flights
Fares from
$202
Non-stop
None in these results
Departures
22 — compare timings in the list above
DE
Delta Air Lines Seattle to San Diego flights
from $17719 flights
Fares from
$177
Non-stop
5 in these results
Departures
19 — compare timings in the list above
AM
American Airlines Seattle to San Diego flights
from $20210 flights
Fares from
$202
Non-stop
4 in these results
Departures
10 — compare timings in the list above
Seattle to San Diego flight details
Lowest fare
US$177 · Tue, 29 Sep
Fastest flight duration
2h 45m · Delta Air Lines
First departure of the day
05:00 · United Airlines
Last departure of the day
20:43 · Alaska Airlines
Options in this snapshot
133
Direct / non-stop options
17
Popular airlines on this route
Alaska Airlines, United Airlines, Delta Air Lines, American Airlines
Airport codes
Seattle–SEA, San Diego–SAN
Fares and timings are indicative — the exact price is confirmed with the airline when you search.
Seattle to San Diego flight schedule, timing and fares
Seattle to San Diego flight schedule and timing
Around 133 flights appear in the dated route snapshot, including 17 non-stop options. Departures run through the day — the first flight leaves around 05:00 and the last around 20:43. The fastest flight takes about 2h 45m.
Morning vs evening Seattle–San Diego fares
Lowest fare by departure window: Morning from $177, Afternoon from $177, Evening from $177, Night from $202. These observations do not predict the cheapest departure window on other dates.
What is the cheapest flight from Seattle to San Diego?
The cheapest fare we are showing right now is US$177, on a Tuesday departure. Airfares change through the day, so search your dates for the exact price.
Should I book one-way or round-trip for Seattle to San Diego?
Compare the complete cost and conditions of both options for your dates. A round-trip can have different fare and change rules from two one-way tickets. One booking may contain multiple airline PNRs; confirm baggage transfer and connection protection for separate tickets.
Which airlines should I consider for Seattle to San Diego?
Alaska Airlines (82 flights, from $249), United Airlines (22 flights, from $202), Delta Air Lines (19 flights, from $177), American Airlines (10 flights, from $202). Compare fare type, baggage and refundability — the cheapest airline is not always the best value for your dates.
Web check-in for your Seattle to San Diego flight
Check the operating airline’s opening time and check-in deadline for each sector. Seat charges and availability depend on your fare. Use the airline reference and the links on Web Check-in.
How to book a Seattle to San Diego flight on FlyX
1
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2
Compare search results
Sort or filter the Seattle–San Diego results by price, departure time, stops and airline.
3
Open the fare choices
Check baggage allowance and refundability for each fare type before continuing.
4
Review the final price
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5
Pay securely
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Why book your Seattle to San Diego flight with FlyX?
Compare the available Seattle to San Diego options by total price, stops, baggage and fare conditions. Search your dates for current availability, then review traveller details and the final price before paying.
Payment confirmation and ticket issuance are separate steps. If your booking is awaiting a PNR or ticket, follow its status and contact FlyX support when you need help. Your issued ticket contains the airline reference and itinerary. Change and cancellation charges depend on the purchased fare and any separately disclosed service fee.
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Seattle to San Diego flight offers & coupon codes
Coupon code
Offer
Max saving
FLYX20
Up to 20% Off on Flights
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Frequently asked questions - Seattle to San Diego flights
Is it worth booking Seattle to San Diego flights in advance?
There is no guaranteed cheapest booking window. Compare your planned dates early, check nearby dates and consider baggage, connection time and change conditions as well as price. Across the dates currently loaded for Seattle to San Diego, Tuesday shows the lowest fare at $177. That is an observed snapshot for these dates, not a rule that holds every week.
How far is Seattle from San Diego by air?
The direct air distance between Seattle (SEA) and San Diego (SAN) is about 1,692 km. Actual flight time varies with the routing the airline files and with winds on the day.
Are there non-stop flights from SEA to SAN?
Yes. 17 non-stop flights are showing on Seattle to San Diego for the dates currently loaded. Use the Stops filter to see only those.
Which airlines fly Seattle to San Diego?
Alaska Airlines, United Airlines, Delta Air Lines and American Airlines are showing on this route for the dates currently loaded. Fares, baggage allowance and refund rules differ by airline and by fare type, so compare the fare conditions and not only the headline price.
How long is the flight from Seattle to San Diego?
The quickest non-stop Seattle to San Diego flight currently loaded takes about 2h 45m. Across the non-stop options showing, block time ranges from 2h 45m to 3h 10m. Journeys with a stop take longer, since the total includes the layover.
What is the cheapest Seattle to San Diego flight fare?
The lowest fare showing on Seattle to San Diego for the dates currently loaded is $177. Fares on the same dates run up to $790, depending on airline, timing and fare type. Airline pricing moves continuously, so treat this as a dated observation rather than a fixed price.
What time do Seattle to San Diego flights depart?
For the dates currently loaded the first departure is around 05:00 and the last is around 20:43, local time at Seattle. Use the departure-time filter on the results above to narrow to a morning, afternoon or evening slot.
Why does the price change after clicking Book Now?
Airline seat inventory and fares change continuously. Selecting Book Now runs a live fare verification with the airline so the price you approve is the price you pay - if it has moved, you see the new figure before any payment.
Before you book this route
Check the airport codes SEA–SAN, local departure and arrival dates, and every connecting airport. Connections can have different document and baggage requirements from your final destination.
Where these fares come from
The fares, durations, stops and baggage shown here come from real airline search results for this route. They are examples for the dates on this page, not a full timetable and not a locked price — run a search to see what is available for your own dates.
Last checked .
Check official travel requirements
Confirm passport, visa and transit rules for your nationality and full itinerary with the relevant government and operating airline. IATA travel-document information explains why requirements vary.
Planning more than the flight? Our United States guide covers the visa process for Indian passport holders, best time to go, how long to plan for, and which places are worth the days you have. Long-haul city breaks and national parks.
Seattle to San Diego - what to expect when booking
The SEA to SAN cards above show selected flight options. Airline prices and seat availability can move quickly, so the final fare is rechecked in the booking flow.
Approx route distance: 1,692.25 km.
Before you book
Compare nearby dates
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Continue to Booking opens the verified fare choices, including baggage and refundability, before review.
Lowest Seattle to San Diego airfare today, in 30 days and in 90 days
Cheapest Fare
Fare
Date
Airline
Departure
Lowest Airfare Today
$177
29/09/2026
Delta Air Lines
07:15
Cheapest Airfare Within 30 Days
$174
08/10/2026
Delta Air Lines
07:15
Cheapest Airfare Within 90 Days
$168
07/12/2026
Delta Air Lines
07:15
Book Seattle to San Diego Flight Tickets on FlyX
Planning to fly from Seattle to San Diego? FlyX lets you compare flight rates, airline timings, layovers, and baggage allowances all in one simple list. From quick non-stop routes to flexible connecting options, finding and booking cheap air tickets has never been easier.
Seattle to San Diego Flight Distance, Duration and Time
The aerial distance between Seattle and San Diego is approximately 1,692 KM. The flight duration ranges from 2H :45 M up to 15H :41 M depending on whether you book a non-stop flight or a connecting schedule with layovers.
Seattle to San Diego Flight Schedule and Timing
Around 133 flights operate on this route, providing plenty of choices for your travel window. The earliest morning flight departs from Seattle at 05:00, while the last night flight leaves at 20:43. Flights depart from Seattle/tacoma International and land at Lindberg Fld S. Diego.
Flight Route Details & Analysis
Flight Details
Information
Route
Seattle to San Diego
Aerial Distance
1,692 KM
Flight Duration
2H :45 M - 15H :41 M
Airport Codes
Seattle - SEA, San Diego - SAN
Total Flights Available
133 flights (17 direct)
First Flight Departure
Departs at 05:00
Last Flight Departure
Departs at 20:43
Early Morning Flights (12 AM - 8 AM)
30 direct/indirect flights
Morning Flights (8 AM - 12 PM)
48 direct/indirect flights
Afternoon Flights (12 PM - 4 PM)
41 direct/indirect flights
Evening Flights (4 PM - 8 PM)
9 direct/indirect flights
Night Flights (8 PM - 12 AM)
5 direct/indirect flights
Airport Information & Terminals
SEA: Seattle-Tacoma International Airport. Sea-Tac connects to downtown by light rail, while cabs are useful for Bellevue, Redmond or late-night arrivals. Rain and freeway traffic should be part of the plan.
SAN: San Diego airport. San Diego airport transfer should be matched to the exact hotel, suburb or meeting area. Rail can work well for light luggage, but late arrivals, winter weather and family baggage often make a direct cab or booked transfer easier.
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Seattle/tacoma International