Seattle to San Diego (SAN): October 2026 flight deals

Compare trip dates and fares.

Choose travelers and dates

Round-trip fare examples

Observed September 16, 2026 (UTC). Search a trip for current prices and flight details.

Round-trip totals in USD for 1 adult · Economy.

DestinationTrip datesDaysAxel MemberAirline fareStopsSearch
San Diego (SAN)Oct 15–18, 20263$228$2531 stopSearch for 1 adult · Dates · Travelers
San Diego (SAN)Oct 16–18, 20262$184$207NonstopSearch for 1 adult · Dates · Travelers
San Diego (SAN)Oct 16–19, 20263$184$207NonstopSearch for 1 adult · Dates · Travelers
San Diego (SAN)Oct 19–21, 20262$178$1981 stopSearch for 1 adult · Dates · Travelers
San Diego (SAN)Oct 22–25, 20263$209$2321 stopSearch for 1 adult · Dates · Travelers
San Diego (SAN)Oct 23–25, 20262$209$2321 stopSearch for 1 adult · Dates · Travelers
San Diego (SAN)Oct 23–26, 20263$184$207NonstopSearch for 1 adult · Dates · Travelers
San Diego (SAN)Oct 26–28, 20262$178$1981 stopSearch for 1 adult · Dates · Travelers
San Diego (SAN)Oct 27–29, 20262$184$207NonstopSearch for 1 adult · Dates · Travelers
San Diego (SAN)Oct 29–Nov 1, 20263$194$2181 stopSearch for 1 adult · Dates · Travelers
San Diego (SAN)Oct 30–Nov 1, 20262$194$2181 stopSearch for 1 adult · Dates · Travelers
San Diego (SAN)Oct 30–Nov 2, 20263$184$207NonstopSearch for 1 adult · Dates · Travelers

Compare trip dates

Observed September 17, 2026 (UTC). Check current prices.

USD for the listed travelers.

Complete round-trip totals; both flights included.

Trip / travelersDatesFlightsAxel MemberAirline fareNext step
SEA–SAN · 1 adultOct 5–7, 2026 · 2 daysOut: Frontier Airlines · 1 stop (DEN) · 7h 24m; Return: Frontier Airlines · 1 stop (DEN) · 8h 43m$180$200 — round-trip totalSearch for 1 adult · Change dates · Travelers / cabin
SEA–SAN · 1 adultOct 6–8, 2026 · 2 daysOut: Frontier Airlines · 1 stop (LAS) · 6h 2m; Return: Frontier Airlines · 1 stop (LAS) · 13h 14m$180$200 — round-trip totalSearch for 1 adult · Change dates · Travelers / cabin
SEA–SAN · 1 adultOct 6–8, 2026 · 2 daysOut: Frontier Airlines · 1 stop (LAS) · 6h 2m; Return: Frontier Airlines · 1 stop (DEN) · 8h 47m$224$251 — round-trip totalSearch for 1 adult · Change dates · Travelers / cabin
SEA–SAN · 1 adultOct 13–15, 2026 · 2 daysOut: Southwest Airlines · Nonstop · 2h 55m; Return: Southwest Airlines · Nonstop · 3h 5m$219$244 — round-trip totalSearch for 1 adult · Change dates · Travelers / cabin
SEA–SAN · 1 adultOct 15–18, 2026 · 3 daysOut: Frontier Airlines · 1 stop (DEN) · 7h 29m; Return: Frontier Airlines · 1 stop (LAS) · 13h 14m$228$253 — round-trip totalSearch for 1 adult · Change dates · Travelers / cabin
SEA–SAN · 1 adultOct 15–18, 2026 · 3 daysOut: Frontier Airlines · 1 stop (DEN) · 7h 29m; Return: Frontier Airlines · 1 stop (DEN) · 8h 47m$546$610 — round-trip totalSearch for 1 adult · Change dates · Travelers / cabin
SEA–SAN · 1 adultOct 16–19, 2026 · 3 daysOut: Delta Air Lines · Nonstop · 2h 44m; Return: Delta Air Lines · Nonstop · 3h 7m$184$207 — round-trip totalSearch for 1 adult · Change dates · Travelers / cabin
SEA–SAN · 1 adultOct 19–21, 2026 · 2 daysOut: Southwest Airlines · Nonstop · 2h 50m; Return: Southwest Airlines · Nonstop · 3h 5m$184$207 — round-trip totalSearch for 1 adult · Change dates · Travelers / cabin
SEA–SAN · 1 adultOct 22–25, 2026 · 3 daysOut: Southwest Airlines · Nonstop · 2h 50m; Return: Southwest Airlines · 1 stop (SMF) · 8h 20m$252$282 — round-trip totalSearch for 1 adult · Change dates · Travelers / cabin
SEA–SAN · 1 adultOct 22–25, 2026 · 3 daysOut: Southwest Airlines · Nonstop · 2h 50m; Return: Southwest Airlines · Nonstop · 3h 5m$293$329 — round-trip totalSearch for 1 adult · Change dates · Travelers / cabin
SEA–SAN · 1 adultOct 23–26, 2026 · 3 daysOut: Delta Air Lines · Nonstop · 2h 44m; Return: Delta Air Lines · Nonstop · 3h 8m$184$207 — round-trip totalSearch for 1 adult · Change dates · Travelers / cabin
SEA–SAN · 1 adultOct 26–28, 2026 · 2 daysOut: Southwest Airlines · Nonstop · 2h 50m; Return: Southwest Airlines · Nonstop · 3h 5m$184$207 — round-trip totalSearch for 1 adult · Change dates · Travelers / cabin
SEA–SAN · 1 adultOct 27–29, 2026 · 2 daysOut: Southwest Airlines · Nonstop · 2h 55m; Return: Southwest Airlines · Nonstop · 3h 5m$184$207 — round-trip totalSearch for 1 adult · Change dates · Travelers / cabin
SEA–SAN · 1 adultOct 29–Nov 1, 2026 · 3 daysOut: Southwest Airlines · Nonstop · 2h 55m; Return: Southwest Airlines · 1 stop (SJC) · 4h 20m$243$272 — round-trip totalSearch for 1 adult · Change dates · Travelers / cabin
SEA–SAN · 1 adultOct 29–Nov 1, 2026 · 3 daysOut: Southwest Airlines · Nonstop · 2h 55m; Return: Southwest Airlines · Nonstop · 3h 10m$301$338 — round-trip totalSearch for 1 adult · Change dates · Travelers / cabin
SEA–SAN · 1 adultOct 30–Nov 2, 2026 · 3 daysOut: Delta Air Lines · Nonstop · 2h 44m; Return: Delta Air Lines · Nonstop · 3h 16m$184$207 — round-trip totalSearch for 1 adult · Change dates · Travelers / cabin

Non-members can also book and save on airline fares. Live search shows prices with and without Membership. Optional Membership: $15 for the first month, then $10/month. Cancel anytime.

More flight comparisons from Seattle

Destinations and airports

Trips for specific dates

Months and trip ideas

Choose another destination or date

Browse this trip by month

AI assistants can follow these links to compare prices without an account, API key or connector. Flight search guide

Browse flight destinations