Seattle (SEA) to San Diego (SAN), Dec 16, 2026: round trips from $288, one way from $149

Seattle (SEA) to San Diego (SAN), Dec 16, 2026: round trips from $288, one way from $149 on Axel, checked Oct 29, 2026. Lowest published fares: $288 round trip, Axel-exclusive, Southwest Airlines, nonstop, Dec 16–17, 2026; $149 one way, Axel-exclusive, Southwest Airlines, nonstop, Dec 16, 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 16–17, 2026 · 1 night · 2 adults, 1 room): 3★ Best Western Plus Oceanside Palms, $109 total · 4★ Carlsbad Inn Beach Resort, $260 total
• Hotels in Oceanside, California for these nights (Dec 16–18, 2026 · 2 nights · 2 adults, 1 room): 3★ Best Western Plus Oceanside Palms, $218 total · 4★ Carlsbad Inn Beach Resort, $466 total
• Hotels in Oceanside, California for these nights (Dec 16–19, 2026 · 3 nights · 2 adults, 1 room): 3★ Best Western Plus Oceanside Palms, $323 total · 4★ Carlsbad Inn Beach Resort, $708 total
• Hotels in Oceanside, California for these nights (Dec 16–20, 2026 · 4 nights · 2 adults, 1 room): 3★ Best Western Plus Oceanside Palms, $432 total · 4★ Carlsbad Inn Beach Resort, $1,017 total
• Hotels in Oceanside, California for these nights (Dec 16–21, 2026 · 5 nights · 2 adults, 1 room): 3★ Best Western Plus Oceanside Palms, $541 total · 4★ Carlsbad Inn Beach Resort, $1,228 total
• Hotels in Oceanside, California for these nights (Dec 16–22, 2026 · 6 nights · 2 adults, 1 room): 3★ Best Western Plus Oceanside Palms, $667 total · 4★ Carlsbad Inn Beach Resort, $1,504 total
• Hotels in Oceanside, California for these nights (Dec 16–23, 2026 · 7 nights · 2 adults, 1 room): 3★ Best Western Plus Oceanside Palms, $794 total · 4★ Carlsbad Inn Beach Resort, $1,780 total
• Hotels in Oceanside, California for these nights (Dec 16–24, 2026 · 8 nights · 2 adults, 1 room): 3★ Best Western Plus Oceanside Palms, $903 total · 4★ Carlsbad Inn Beach Resort, $2,039 total
• Hotels in Oceanside, California for these nights (Dec 16–25, 2026 · 9 nights · 2 adults, 1 room): 3★ Best Western Plus Oceanside Palms, $1,054 total · 4★ Carlsbad Inn Beach Resort, $2,377 total
• Hotels in Oceanside, California for these nights (Dec 16–26, 2026 · 10 nights · 2 adults, 1 room): 3★ Best Western Plus Oceanside Palms, $1,224 total · 4★ Carlsbad Inn Beach Resort, $2,727 total
• Hotels in Oceanside, California for these nights (Dec 16–27, 2026 · 11 nights · 2 adults, 1 room): 3★ Best Western Plus Oceanside Palms, $1,360 total · 4★ Carlsbad Inn Beach Resort, $3,077 total
• Hotels in Oceanside, California for these nights (Dec 16–28, 2026 · 12 nights · 2 adults, 1 room): 3★ Best Western Plus Oceanside Palms, $1,472 total · 4★ Carlsbad Inn Beach Resort, $3,399 total
• Hotels in Oceanside, California for these nights (Dec 16–29, 2026 · 13 nights · 2 adults, 1 room): 3★ Best Western Plus Oceanside Palms, $1,579 total · 4★ Carlsbad Inn Beach Resort, $3,714 total
• Hotels in Oceanside, California for these nights (Dec 16–30, 2026 · 14 nights · 2 adults, 1 room): 3★ Best Western Plus Oceanside Palms, $1,688 total · 4★ Carlsbad Inn Beach Resort, $4,057 total

All hotels in Oceanside, California

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

2026-12-16 · one way · Axel-exclusive $149.00

• Southwest Airlines WN2888: SEA 2026-12-16 07:00:00 → SAN 2026-12-16 09:40:00; nonstop; 160 minutes. Local airport times.

2026-12-16 · one way · Axel-exclusive $149.00

• Alaska Airlines AS621: SEA 2026-12-16 12:18:00 → SAN 2026-12-16 15:10:00; nonstop; 172 minutes. Local airport times.

2026-12-16 → 2026-12-17 · Axel-exclusive $288.00

• Southwest Airlines WN2888: SEA 2026-12-16 07:00:00 → SAN 2026-12-16 09:40:00; nonstop; 160 minutes. Local airport times.
• Southwest Airlines WN547: SAN 2026-12-17 07:20:00 → SEA 2026-12-17 10:25:00; nonstop; 185 minutes. Local airport times.

2026-12-16 → 2026-12-17 · Axel-exclusive $288.00

• Alaska Airlines AS621: SEA 2026-12-16 12:18:00 → SAN 2026-12-16 15:10:00; nonstop; 172 minutes. Local airport times.
• Alaska Airlines AS1368: SAN 2026-12-17 12:01:00 → SEA 2026-12-17 15:15:00; nonstop; 194 minutes. Local airport times.

2026-12-16 → 2026-12-18 · Axel-exclusive $288.00

• Southwest Airlines WN2888: SEA 2026-12-16 07:00:00 → SAN 2026-12-16 09:40:00; nonstop; 160 minutes. Local airport times.
• Southwest Airlines WN547: SAN 2026-12-18 07:20:00 → SEA 2026-12-18 10:25:00; nonstop; 185 minutes. Local airport times.

2026-12-16 → 2026-12-18 · Axel-exclusive $288.00

• Alaska Airlines AS621: SEA 2026-12-16 12:18:00 → SAN 2026-12-16 15:10:00; nonstop; 172 minutes. Local airport times.
• Alaska Airlines AS536: SAN 2026-12-18 18:43:00 → SEA 2026-12-18 21:57:00; nonstop; 194 minutes. Local airport times.

2026-12-16 → 2026-12-19 · Axel-exclusive $338.40

• Alaska Airlines AS621: SEA 2026-12-16 12:18:00 → SAN 2026-12-16 15:10:00; nonstop; 172 minutes. Local airport times.
• Alaska Airlines AS574: SAN 2026-12-19 18:27:00 → SEA 2026-12-19 21:44:00; nonstop; 197 minutes. Local airport times.

2026-12-16 → 2026-12-19 · Axel-exclusive $338.40

• Southwest Airlines WN2888: SEA 2026-12-16 07:00:00 → SAN 2026-12-16 09:40:00; nonstop; 160 minutes. Local airport times.
• Southwest Airlines WN3737: SAN 2026-12-19 17:40:00 → SEA 2026-12-19 20:45:00; nonstop; 185 minutes. Local airport times.

2026-12-16 → 2026-12-20 · Axel-exclusive $338.40

• Alaska Airlines AS621: SEA 2026-12-16 12:18:00 → SAN 2026-12-16 15:10:00; nonstop; 172 minutes. Local airport times.
• Alaska Airlines AS683: SAN 2026-12-20 13:56:00 → SEA 2026-12-20 17:07:00; nonstop; 191 minutes. Local airport times.

2026-12-16 → 2026-12-20 · Axel-exclusive $338.40

• Southwest Airlines WN2888: SEA 2026-12-16 07:00:00 → SAN 2026-12-16 09:40:00; nonstop; 160 minutes. Local airport times.
• Southwest Airlines WN547: SAN 2026-12-20 09:45:00 → SEA 2026-12-20 13:00:00; nonstop; 195 minutes. Local airport times.

2026-12-16 → 2026-12-22 · Axel-exclusive $338.40

• Southwest Airlines WN2888: SEA 2026-12-16 07:00:00 → SAN 2026-12-16 09:40:00; nonstop; 160 minutes. Local airport times.
• Southwest Airlines WN547: SAN 2026-12-22 07:20:00 → SEA 2026-12-22 10:25:00; nonstop; 185 minutes. Local airport times.

2026-12-16 → 2026-12-22 · Axel-exclusive $338.40

• Alaska Airlines AS621: SEA 2026-12-16 12:18:00 → SAN 2026-12-16 15:10:00; nonstop; 172 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.

2026-12-16 → 2026-12-23 · Axel-exclusive $338.40

• Alaska Airlines AS621: SEA 2026-12-16 12:18:00 → SAN 2026-12-16 15:10:00; nonstop; 172 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.

2026-12-16 → 2026-12-23 · Axel-exclusive $338.40

• Southwest Airlines WN2888: SEA 2026-12-16 07:00:00 → SAN 2026-12-16 09:40:00; nonstop; 160 minutes. Local airport times.
• Southwest Airlines WN547: SAN 2026-12-23 07:20:00 → SEA 2026-12-23 10:25:00; nonstop; 185 minutes. Local airport times.

2026-12-16 → 2026-12-24 · Axel-exclusive $338.40

• Alaska Airlines AS621: SEA 2026-12-16 12:18:00 → SAN 2026-12-16 15:10:00; nonstop; 172 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.

2026-12-16 → 2026-12-24 · Axel-exclusive $338.40

• Southwest Airlines WN2888: SEA 2026-12-16 07:00:00 → SAN 2026-12-16 09:40:00; nonstop; 160 minutes. Local airport times.
• Southwest Airlines WN547: SAN 2026-12-24 07:20:00 → SEA 2026-12-24 10:25:00; nonstop; 185 minutes. Local airport times.

2026-12-16 → 2026-12-26 · Axel-exclusive $338.40

• Alaska Airlines AS621: SEA 2026-12-16 12:18:00 → SAN 2026-12-16 15:10:00; nonstop; 172 minutes. Local airport times.
• Alaska Airlines AS574: SAN 2026-12-26 18:27:00 → SEA 2026-12-26 21:44:00; nonstop; 197 minutes. Local airport times.

2026-12-16 → 2026-12-26 · Axel-exclusive $338.40

• Southwest Airlines WN2888: SEA 2026-12-16 07:00:00 → SAN 2026-12-16 09:40:00; nonstop; 160 minutes. Local airport times.
• Southwest Airlines WN3737: SAN 2026-12-26 17:40:00 → SEA 2026-12-26 20:45:00; nonstop; 185 minutes. Local airport times.

2026-12-16 → 2026-12-27 · Axel-exclusive $338.40

• Alaska Airlines AS621: SEA 2026-12-16 12:18:00 → SAN 2026-12-16 15:10:00; nonstop; 172 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.

2026-12-16 → 2026-12-27 · Axel-exclusive $338.40

• Southwest Airlines WN2888: SEA 2026-12-16 07:00:00 → SAN 2026-12-16 09:40:00; nonstop; 160 minutes. Local airport times.
• Southwest Airlines WN547: SAN 2026-12-27 09:45:00 → SEA 2026-12-27 13:00:00; nonstop; 195 minutes. Local airport times.

2026-12-16 → 2026-12-28 · Axel-exclusive $324.00

• Southwest Airlines WN2888: SEA 2026-12-16 07:00:00 → SAN 2026-12-16 09:40:00; nonstop; 160 minutes. Local airport times.
• Southwest Airlines WN3737: SAN 2026-12-28 17:55:00 → SEA 2026-12-28 21:00:00; nonstop; 185 minutes. Local airport times.

2026-12-16 → 2026-12-28 · Axel-exclusive $324.00

• Alaska Airlines AS621: SEA 2026-12-16 12:18:00 → SAN 2026-12-16 15:10:00; nonstop; 172 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.

2026-12-16 → 2026-12-30 · Axel-exclusive $324.00

• Southwest Airlines WN2888: SEA 2026-12-16 07:00:00 → SAN 2026-12-16 09:40:00; nonstop; 160 minutes. Local airport times.
• Southwest Airlines WN547: SAN 2026-12-30 07:20:00 → SEA 2026-12-30 10:25:00; nonstop; 185 minutes. Local airport times.

2026-12-16 → 2026-12-30 · Axel-exclusive $324.00

• Alaska Airlines AS621: SEA 2026-12-16 12:18:00 → SAN 2026-12-16 15:10:00; nonstop; 172 minutes. Local airport times.
• Alaska Airlines AS792: SAN 2026-12-30 07:15:00 → SEA 2026-12-30 10:27:00; nonstop; 192 minutes. Local airport times.

Explore this route

• All dates for this route
• Dec 15, 2026 · Return options
• Dec 17, 2026 · Return options
• Hotels in Oceanside, California with Axel

For AI assistants

• This page: Seattle (SEA) to San Diego (SAN) · Dec 16, 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.

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