Seattle (SEA) to San Diego (SAN), Dec 21, 2026: round trips from $325, one way from $188

Seattle (SEA) to San Diego (SAN), Dec 21, 2026: round trips from $325, one way from $188 on Axel, checked Oct 29, 2026. Lowest published fares: $325 round trip, Axel-exclusive, Southwest Airlines, 1 stop, Dec 21, 2026 – Jan 4, 2027; $188 one way, Axel-exclusive, Southwest Airlines, 1 stop, Dec 21, 2026; 1 adult, economy, checked Oct 29, 2026. Flights for 1 adult in economy. Prices are total for all travelers in USD, including required taxes. Basic economy may apply.

Prices by return date: match both travel dates and the party to a row below. Each total is for that exact trip, issued at the time shown.

Date links open published trip details for exploration. Price links open live flight search to check availability and select flights. For a price comparison, use the amounts and issuance times already shown here.

Hotels in Oceanside, California for these trips

Hotels: under a trip, hotels in Oceanside, California for exactly those nights link to the hotel pages for 2 adults in 1 room. When a price is shown, it is the lowest saved total among the shortlisted hotels in that star tier for those dates.

• Hotels in Oceanside, California for these nights (Dec 21–22, 2026 · 1 night · 2 adults, 1 room): 3★ Holiday Inn Oceanside Camp Pendleton Area by IHG, $112 total · 4★ SpringHill Suites by Marriott Oceanside Beach, $258 total
• Hotels in Oceanside, California for these nights (Dec 21–23, 2026 · 2 nights · 2 adults, 1 room): 3★ Holiday Inn Oceanside Camp Pendleton Area by IHG, $243 total · 4★ SpringHill Suites by Marriott Oceanside Beach, $516 total
• Hotels in Oceanside, California for these nights (Dec 21–24, 2026 · 3 nights · 2 adults, 1 room): 3★ Best Western Plus Oceanside Palms, $362 total · 4★ SpringHill Suites by Marriott Oceanside Beach, $774 total
• Hotels in Oceanside, California for these nights (Dec 21–25, 2026 · 4 nights · 2 adults, 1 room): 3★ Holiday Inn Oceanside Camp Pendleton Area by IHG, $501 total · 4★ SpringHill Suites by Marriott Oceanside Beach, $1,043 total
• Hotels in Oceanside, California for these nights (Dec 21–26, 2026 · 5 nights · 2 adults, 1 room): 3★ Holiday Inn Oceanside Camp Pendleton Area by IHG, $669 total · 4★ SpringHill Suites by Marriott Oceanside Beach, $1,414 total
• Hotels in Oceanside, California for these nights (Dec 21–27, 2026 · 6 nights · 2 adults, 1 room): 3★ Best Western Plus Oceanside Palms, $819 total · 4★ SpringHill Suites by Marriott Oceanside Beach, $1,796 total
• Hotels in Oceanside, California for these nights (Dec 21–28, 2026 · 7 nights · 2 adults, 1 room): 3★ Best Western Plus Oceanside Palms, $931 total · 4★ SpringHill Suites by Marriott Oceanside Beach, $2,088 total
• Hotels in Oceanside, California for these nights (Dec 21–29, 2026 · 8 nights · 2 adults, 1 room): 3★ Best Western Plus Oceanside Palms, $1,038 total · 4★ SpringHill Suites by Marriott Oceanside Beach, $2,402 total
• Hotels in Oceanside, California for these nights (Dec 21–30, 2026 · 9 nights · 2 adults, 1 room): 3★ Best Western Plus Oceanside Palms, $1,147 total · 4★ SpringHill Suites by Marriott Oceanside Beach, $2,716 total
• Hotels in Oceanside, California for these nights (Dec 21–31, 2026 · 10 nights · 2 adults, 1 room): 3★ Best Western Plus Oceanside Palms, $1,256 total · 4★ SpringHill Suites by Marriott Oceanside Beach, $3,030 total
• Hotels in Oceanside, California for these nights (Dec 21 – Jan 1, 2027 · 11 nights · 2 adults, 1 room): 3★ Best Western Plus Oceanside Palms, $1,380 total · 4★ SpringHill Suites by Marriott Oceanside Beach, $3,412 total
• Hotels in Oceanside, California for these nights (Dec 21 – Jan 2, 2027 · 12 nights · 2 adults, 1 room): 3★ Best Western Plus Oceanside Palms, $1,496 total · 4★ SpringHill Suites by Marriott Oceanside Beach, $3,749 total
• Hotels in Oceanside, California for these nights (Dec 21 – Jan 3, 2027 · 13 nights · 2 adults, 1 room): 3★ Best Western Plus Oceanside Palms, $1,616 total · 4★ SpringHill Suites by Marriott Oceanside Beach, $4,086 total
• Hotels in Oceanside, California for these nights (Dec 21 – Jan 4, 2027 · 14 nights · 2 adults, 1 room): 3★ Best Western Plus Oceanside Palms, $1,718 total · 4★ SpringHill Suites by Marriott Oceanside Beach, $4,310 total

All hotels in Oceanside, California

Route overview: Seattle area (Sea-Tac and Paine Field) to San Diego (SAN) flight deals

2026-12-21 · one way · Axel-exclusive $187.65

• Southwest Airlines WN2179 / WN429: SEA 2026-12-21 12:35:00 → SAN 2026-12-21 17:45:00; 1 stop(s) via SJC; 310 minutes. Local airport times.
  • WN2179: SEA 2026-12-21 12:35:00 → SJC 2026-12-21 14:55:00; layover at SJC: 85 minutes.
  • WN429: SJC 2026-12-21 16:20:00 → SAN 2026-12-21 17:45:00.

2026-12-21 · one way · Axel-exclusive $201.15

• Alaska Airlines AS791: SEA 2026-12-21 17:51:00 → SAN 2026-12-21 20:41:00; nonstop; 170 minutes. Local airport times.

2026-12-21 → 2026-12-22 · Axel-exclusive $375.30

• Southwest Airlines WN2179 / WN429: SEA 2026-12-21 12:35:00 → SAN 2026-12-21 17:45:00; 1 stop(s) via SJC; 310 minutes. Local airport times.
  • WN2179: SEA 2026-12-21 12:35:00 → SJC 2026-12-21 14:55:00; layover at SJC: 85 minutes.
  • WN429: SJC 2026-12-21 16:20:00 → SAN 2026-12-21 17:45:00.
• Southwest Airlines WN547: SAN 2026-12-22 07:20:00 → SEA 2026-12-22 10:25:00; nonstop; 185 minutes. Local airport times.

2026-12-21 → 2026-12-22 · Axel-exclusive $388.80

• Alaska Airlines AS791: SEA 2026-12-21 17:51:00 → SAN 2026-12-21 20:41:00; nonstop; 170 minutes. Local airport times.
• Alaska Airlines AS608: SAN 2026-12-22 06:15:00 → SEA 2026-12-22 09:33:00; nonstop; 198 minutes. Local airport times.

2026-12-21 → 2026-12-23 · Axel-exclusive $375.30

• Southwest Airlines WN2179 / WN429: SEA 2026-12-21 12:35:00 → SAN 2026-12-21 17:45:00; 1 stop(s) via SJC; 310 minutes. Local airport times.
  • WN2179: SEA 2026-12-21 12:35:00 → SJC 2026-12-21 14:55:00; layover at SJC: 85 minutes.
  • WN429: SJC 2026-12-21 16:20:00 → SAN 2026-12-21 17:45:00.
• Southwest Airlines WN547: SAN 2026-12-23 07:20:00 → SEA 2026-12-23 10:25:00; nonstop; 185 minutes. Local airport times.

2026-12-21 → 2026-12-23 · Axel-exclusive $388.80

• Alaska Airlines AS791: SEA 2026-12-21 17:51:00 → SAN 2026-12-21 20:41:00; nonstop; 170 minutes. Local airport times.
• Alaska Airlines AS792: SAN 2026-12-23 07:15:00 → SEA 2026-12-23 10:27:00; nonstop; 192 minutes. Local airport times.

2026-12-21 → 2026-12-24 · Axel-exclusive $375.30

• Southwest Airlines WN2179 / WN429: SEA 2026-12-21 12:35:00 → SAN 2026-12-21 17:45:00; 1 stop(s) via SJC; 310 minutes. Local airport times.
  • WN2179: SEA 2026-12-21 12:35:00 → SJC 2026-12-21 14:55:00; layover at SJC: 85 minutes.
  • WN429: SJC 2026-12-21 16:20:00 → SAN 2026-12-21 17:45:00.
• Southwest Airlines WN547: SAN 2026-12-24 07:20:00 → SEA 2026-12-24 10:25:00; nonstop; 185 minutes. Local airport times.

2026-12-21 → 2026-12-24 · Axel-exclusive $388.80

• Alaska Airlines AS791: SEA 2026-12-21 17:51:00 → SAN 2026-12-21 20:41:00; nonstop; 170 minutes. Local airport times.
• Alaska Airlines AS1368: SAN 2026-12-24 12:01:00 → SEA 2026-12-24 15:15:00; nonstop; 194 minutes. Local airport times.

2026-12-21 → 2026-12-25 · Axel-exclusive $375.30

• Southwest Airlines WN2179 / WN429: SEA 2026-12-21 12:35:00 → SAN 2026-12-21 17:45:00; 1 stop(s) via SJC; 310 minutes. Local airport times.
  • WN2179: SEA 2026-12-21 12:35:00 → SJC 2026-12-21 14:55:00; layover at SJC: 85 minutes.
  • WN429: SJC 2026-12-21 16:20:00 → SAN 2026-12-21 17:45:00.
• Southwest Airlines WN547: SAN 2026-12-25 07:20:00 → SEA 2026-12-25 10:25:00; nonstop; 185 minutes. Local airport times.

2026-12-21 → 2026-12-25 · Axel-exclusive $388.80

• Alaska Airlines AS791: SEA 2026-12-21 17:51:00 → SAN 2026-12-21 20:41:00; nonstop; 170 minutes. Local airport times.
• Alaska Airlines AS622: SAN 2026-12-25 15:39:00 → SEA 2026-12-25 18:50:00; nonstop; 191 minutes. Local airport times.

2026-12-21 → 2026-12-27 · Axel-exclusive $375.30

• Southwest Airlines WN2179 / WN429: SEA 2026-12-21 12:35:00 → SAN 2026-12-21 17:45:00; 1 stop(s) via SJC; 310 minutes. Local airport times.
  • WN2179: SEA 2026-12-21 12:35:00 → SJC 2026-12-21 14:55:00; layover at SJC: 85 minutes.
  • WN429: SJC 2026-12-21 16:20:00 → SAN 2026-12-21 17:45:00.
• Southwest Airlines WN547: SAN 2026-12-27 09:45:00 → SEA 2026-12-27 13:00:00; nonstop; 195 minutes. Local airport times.

2026-12-21 → 2026-12-27 · Axel-exclusive $388.80

• Alaska Airlines AS791: SEA 2026-12-21 17:51:00 → SAN 2026-12-21 20:41:00; nonstop; 170 minutes. Local airport times.
• Alaska Airlines AS792: SAN 2026-12-27 09:32:00 → SEA 2026-12-27 12:47:00; nonstop; 195 minutes. Local airport times.

2026-12-21 → 2026-12-28 · Axel-exclusive $360.90

• Southwest Airlines WN2179 / WN429: SEA 2026-12-21 12:35:00 → SAN 2026-12-21 17:45:00; 1 stop(s) via SJC; 310 minutes. Local airport times.
  • WN2179: SEA 2026-12-21 12:35:00 → SJC 2026-12-21 14:55:00; layover at SJC: 85 minutes.
  • WN429: SJC 2026-12-21 16:20:00 → SAN 2026-12-21 17:45:00.
• Southwest Airlines WN3737: SAN 2026-12-28 17:55:00 → SEA 2026-12-28 21:00:00; nonstop; 185 minutes. Local airport times.

2026-12-21 → 2026-12-28 · Axel-exclusive $374.40

• Alaska Airlines AS791: SEA 2026-12-21 17:51:00 → SAN 2026-12-21 20:41:00; nonstop; 170 minutes. Local airport times.
• Alaska Airlines AS1660: SAN 2026-12-28 15:39:00 → SEA 2026-12-28 18:50:00; nonstop; 191 minutes. Local airport times.

2026-12-21 → 2026-12-29 · Axel-exclusive $360.90

• Southwest Airlines WN2179 / WN429: SEA 2026-12-21 12:35:00 → SAN 2026-12-21 17:45:00; 1 stop(s) via SJC; 310 minutes. Local airport times.
  • WN2179: SEA 2026-12-21 12:35:00 → SJC 2026-12-21 14:55:00; layover at SJC: 85 minutes.
  • WN429: SJC 2026-12-21 16:20:00 → SAN 2026-12-21 17:45:00.
• Southwest Airlines WN547: SAN 2026-12-29 07:20:00 → SEA 2026-12-29 10:25:00; nonstop; 185 minutes. Local airport times.

2026-12-21 → 2026-12-29 · Axel-exclusive $374.40

• Alaska Airlines AS791: SEA 2026-12-21 17:51:00 → SAN 2026-12-21 20:41:00; nonstop; 170 minutes. Local airport times.
• Alaska Airlines AS622: SAN 2026-12-29 15:39:00 → SEA 2026-12-29 18:50:00; nonstop; 191 minutes. Local airport times.

2026-12-21 → 2026-12-31 · Axel-exclusive $360.90

• Southwest Airlines WN2179 / WN429: SEA 2026-12-21 12:35:00 → SAN 2026-12-21 17:45:00; 1 stop(s) via SJC; 310 minutes. Local airport times.
  • WN2179: SEA 2026-12-21 12:35:00 → SJC 2026-12-21 14:55:00; layover at SJC: 85 minutes.
  • WN429: SJC 2026-12-21 16:20:00 → SAN 2026-12-21 17:45:00.
• Southwest Airlines WN547: SAN 2026-12-31 07:20:00 → SEA 2026-12-31 10:25:00; nonstop; 185 minutes. Local airport times.

2026-12-21 → 2026-12-31 · Axel-exclusive $374.40

• Alaska Airlines AS791: SEA 2026-12-21 17:51:00 → SAN 2026-12-21 20:41:00; nonstop; 170 minutes. Local airport times.
• Alaska Airlines AS1368: SAN 2026-12-31 12:01:00 → SEA 2026-12-31 15:15:00; nonstop; 194 minutes. Local airport times.

2026-12-21 → 2027-01-01 · Axel-exclusive $360.90

• Southwest Airlines WN2179 / WN429: SEA 2026-12-21 12:35:00 → SAN 2026-12-21 17:45:00; 1 stop(s) via SJC; 310 minutes. Local airport times.
  • WN2179: SEA 2026-12-21 12:35:00 → SJC 2026-12-21 14:55:00; layover at SJC: 85 minutes.
  • WN429: SJC 2026-12-21 16:20:00 → SAN 2026-12-21 17:45:00.
• Southwest Airlines WN547: SAN 2027-01-01 07:20:00 → SEA 2027-01-01 10:25:00; nonstop; 185 minutes. Local airport times.

2026-12-21 → 2027-01-01 · Axel-exclusive $374.40

• Alaska Airlines AS791: SEA 2026-12-21 17:51:00 → SAN 2026-12-21 20:41:00; nonstop; 170 minutes. Local airport times.
• Alaska Airlines AS792: SAN 2027-01-01 09:32:00 → SEA 2027-01-01 12:47:00; nonstop; 195 minutes. Local airport times.

2026-12-21 → 2027-01-02 · Axel-exclusive $360.90

• Southwest Airlines WN2179 / WN429: SEA 2026-12-21 12:35:00 → SAN 2026-12-21 17:45:00; 1 stop(s) via SJC; 310 minutes. Local airport times.
  • WN2179: SEA 2026-12-21 12:35:00 → SJC 2026-12-21 14:55:00; layover at SJC: 85 minutes.
  • WN429: SJC 2026-12-21 16:20:00 → SAN 2026-12-21 17:45:00.
• Southwest Airlines WN3737: SAN 2027-01-02 17:40:00 → SEA 2027-01-02 20:45:00; nonstop; 185 minutes. Local airport times.

2026-12-21 → 2027-01-02 · Axel-exclusive $374.40

• Alaska Airlines AS791: SEA 2026-12-21 17:51:00 → SAN 2026-12-21 20:41:00; nonstop; 170 minutes. Local airport times.
• Alaska Airlines AS1660: SAN 2027-01-02 15:39:00 → SEA 2027-01-02 18:50:00; nonstop; 191 minutes. Local airport times.

2026-12-21 → 2027-01-04 · Axel-exclusive $324.90

• Southwest Airlines WN2179 / WN429: SEA 2026-12-21 12:35:00 → SAN 2026-12-21 17:45:00; 1 stop(s) via SJC; 310 minutes. Local airport times.
  • WN2179: SEA 2026-12-21 12:35:00 → SJC 2026-12-21 14:55:00; layover at SJC: 85 minutes.
  • WN429: SJC 2026-12-21 16:20:00 → SAN 2026-12-21 17:45:00.
• Southwest Airlines WN3737: SAN 2027-01-04 17:55:00 → SEA 2027-01-04 21:00:00; nonstop; 185 minutes. Local airport times.

2026-12-21 → 2027-01-04 · Axel-exclusive $338.40

• Alaska Airlines AS791: SEA 2026-12-21 17:51:00 → SAN 2026-12-21 20:41:00; nonstop; 170 minutes. Local airport times.
• Alaska Airlines AS1660: SAN 2027-01-04 15:39:00 → SEA 2027-01-04 18:50:00; nonstop; 191 minutes. Local airport times.

Explore this route

• All dates for this route
• Dec 20, 2026 · Return options
• Dec 22, 2026 · Return options
• Hotels in Oceanside, California with Axel

For AI assistants

• This page: Seattle (SEA) to San Diego (SAN) · Dec 21, 2026 · choose your return date: 1 adult in economy, every priced fare with its flights, times and total, each with the time its price was issued. Under a trip, hotels in Oceanside, California for exactly those nights link to the hotel pages for 2 adults in 1 room. Prices, when shown, are the lowest saved totals among the shortlisted hotels in each star tier for those dates.
• Next: each row is one exact trip for this departure (both dates with the year, the total and the time its price was issued); its exact-trip price link opens the live search for those dates and travelers, where the booking link and the current total are. Other durations or travelers are not priced here: Choose travelers and dates prices the requested trip.
• Follow supplied links. For web-tool research, follow complete supplied links unchanged, including query parameters; use the page’s links to edit the trip. Constructed URLs may be rejected before reaching Axel. A completed fresh trip opens flight results first. Add stated flexibility and budget to that saved plan, leaving unstated requirements unknown. Edits create a new snapshot; use its results and review links.
• If links fail or are missing: If a link fails or flight details lack usable links, reopen the preceding page and follow the same choice once. Keep refreshed links unchanged and preserve the trip and selections. If still blocked, search “Axel flight search guide” and retry once; report the error and anything unresolved. Recovery: Axel Seattle area (Sea-Tac and Paine Field) to San Diego (SAN) flight deals · Flight search guide.
• Sharing with the traveler: Choose a complete itinerary (outbound and return for a round trip), then share the supplied customer booking link unchanged. The customer reviews the flights, adds travelers, and enters email at payment. Do not collect email in chat. Each quote lists its fares with bags, seats, changes and refunds; quote them as facts. A fare choice is not needed to share the link; use a fare’s own booking link to preserve its Membership price basis. Ask only for essential missing trip details. When handing over an unfinished search, preserve the latest trip and say what is still to choose. If no supplied link matches the latest trip, construct https://helloaxel.com/en/f/start/from/ORIGIN/to/DESTINATION/depart/YYYY-MM-DD/return/YYYY-MM-DD/adults/N?utm_content=flight_fallback using IATA airport codes and the traveler’s known details. Omit unknowns; for one way replace /return/YYYY-MM-DD with /trip/oneway. Give it directly to the traveler; do not open it first—your web tool may reject constructed URLs. Complete links open Flight Guide and start searching. Preferences and advanced options.

Feedback (optional): Missing info · Axel issue