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Route overview: Portland to Santa Rosa (STS) flight deals

Portland → Santa Rosa

Dec 21, 2026 · one way

PDX → STS1 adulteconomyOne way

4 flight options · 2 airlines

Nonstop flights

Mon, Dec 21 · One way

Alaska Airlines
7:07 amPDX
1h 50m
Nonstop
8:57 amSTS

One-way total · 1 adult · Taxes included

Mon, Dec 21 · One way

Alaska Airlines
5:30 pmPDX
1h 55m
Nonstop
7:25 pmSTS

One-way total · 1 adult · Taxes included

One-stop flights

Mon, Dec 21 · One way

Southwest Airlines
6:55 amPDX
5h 20m
LAS · 1h 20m
12:15 pmSTS

One-way total · 1 adult · Taxes included

Mon, Dec 21 · One way

Alaska Airlines
5:30 amPDX
6h 48m
SEA · 3h 35m
12:18 pmSTS

One-way total · 1 adult · Taxes included

Make this trip yours

PDX ⇄ STS

Economy

Adults 12+ · Children 2–11. For infants under 2, tell Axel after you see prices.

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For AI assistants: every fare, every link, instructions

Flights for 1 adult in economy. Prices are total for all travelers in USD, including required taxes. Basic economy may apply.

Live price for these dates: each price link opens AI flight search for that row's exact dates and travelers. Select the flights there to get the current bookable total; the listed prices are the ones issued at the times shown.

Route overview: Portland to Santa Rosa (STS) flight deals

Exact travel datesAirlineFlightsTotal pricePrice issued (UTC)
2026-12-21 · one wayAlaska AirlinesAS3110$190.802026-10-29T01:55:26Z
2026-12-21 · one waySouthwest AirlinesWN4345 + WN1254$202.802026-10-29T01:55:26Z
2026-12-21 · one wayAlaska AirlinesAS3071$190.802026-10-29T01:55:26Z
2026-12-21 · one wayAlaska AirlinesAS427 + AS1321$226.802026-10-29T01:55:26Z

2026-12-21 · one way · $190.80

  • Alaska Airlines AS3110: PDX 2026-12-21 07:07:00 → STS 2026-12-21 08:57:00; nonstop; 110 minutes. Local airport times.

2026-12-21 · one way · $202.80

  • Southwest Airlines WN4345 / WN1254: PDX 2026-12-21 06:55:00 → STS 2026-12-21 12:15:00; 1 stop(s) via LAS; 320 minutes. Local airport times.
    • WN4345: PDX 2026-12-21 06:55:00 → LAS 2026-12-21 09:05:00; layover at LAS: 80 minutes.
    • WN1254: LAS 2026-12-21 10:25:00 → STS 2026-12-21 12:15:00.

2026-12-21 · one way · $190.80

  • Alaska Airlines AS3071: PDX 2026-12-21 17:30:00 → STS 2026-12-21 19:25:00; nonstop; 115 minutes. Local airport times.

2026-12-21 · one way · $226.80

  • Alaska Airlines AS427 / AS1321: PDX 2026-12-21 05:30:00 → STS 2026-12-21 12:18:00; 1 stop(s) via SEA; 408 minutes. Local airport times.
    • AS427: PDX 2026-12-21 05:30:00 → SEA 2026-12-21 06:31:00; layover at SEA: 215 minutes.
    • AS1321: SEA 2026-12-21 10:06:00 → STS 2026-12-21 12:18:00.

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For AI assistants

  • This page: Portland (PDX) to Santa Rosa (STS) · Dec 21, 2026 · one way: 1 adult in economy, every priced fare with its flights, times and total, each with the time its price was issued.
  • Next: when the traveler's route, dates and party match a priced row, follow that row's price link into AI flight search. Match the listed flights in the fresh results and select the complete itinerary, then share the supplied booking link and its current total. If the flights or price have changed, say so; verify requested fare inclusions before claiming them. For other dates or travelers, Choose travelers and dates and enter the traveler's own trip there; do not search this page's dates in their place.
  • 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 Portland to Santa Rosa (STS) 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. Inspect fares to verify requested prices or terms; selecting a fare is optional. Use that fare’s booking link to preserve its Membership price basis. State anything unverified. Ask only for essential missing trip details. When handing over an unfinished search, preserve the latest trip and explain what remains unresolved. Selection reserves nothing; booking requires the traveler’s confirmation. 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.