Dulles (IAD) to San Jose (SJO) · Dec 24, 2026 · one way

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

See flights for these dates: each price link opens AI flight search for that row's exact dates and travelers. Select the complete itinerary there.

Route overview: Washington, DC to San Jose (SJO) flight deals

2026-12-24 · one way · Axel-exclusive $399.00

• United Airlines UA2052: IAD 2026-12-24 08:59:00 → SJO 2026-12-24 13:00:00; nonstop; 301 minutes. Local airport times.

2026-12-24 · one way · Axel-exclusive $217.00

• Frontier Airlines F94707 / F9215: IAD 2026-12-24 07:40:00 → SJO 2026-12-24 14:16:00; 1 stop(s) via ATL; 456 minutes. Local airport times.
  • F94707: IAD 2026-12-24 07:40:00 → ATL 2026-12-24 09:54:00; layover at ATL: 80 minutes.
  • F9215: ATL 2026-12-24 11:14:00 → SJO 2026-12-24 14:16:00.

2026-12-24 · one way · Axel-exclusive $273.00

• Avianca AV591 / AV609: IAD 2026-12-24 03:00:00 → SJO 2026-12-24 11:25:00; 1 stop(s) via SAL; 565 minutes. Local airport times.
  • AV591: IAD 2026-12-24 03:00:00 → SAL 2026-12-24 06:30:00; layover at SAL: 220 minutes.
  • AV609: SAL 2026-12-24 10:10:00 → SJO 2026-12-24 11:25:00.

2026-12-24 · one way · Axel-exclusive $343.00

• American Airlines AA2774 / AA395: IAD 2026-12-24 14:42:00 → SJO 2026-12-24 23:01:00; 1 stop(s) via DFW; 559 minutes. Local airport times.
  • AA2774: IAD 2026-12-24 14:42:00 → DFW 2026-12-24 17:28:00; layover at DFW: 87 minutes.
  • AA395: DFW 2026-12-24 18:55:00 → SJO 2026-12-24 23:01:00.

2026-12-24 · one way · Axel-exclusive $343.00

• United Airlines UA2823 / UA1222: IAD 2026-12-24 12:38:00 → SJO 2026-12-24 19:53:00; 1 stop(s) via EWR; 495 minutes. Local airport times.
  • UA2823: IAD 2026-12-24 12:38:00 → EWR 2026-12-24 13:59:00; layover at EWR: 93 minutes.
  • UA1222: EWR 2026-12-24 15:32:00 → SJO 2026-12-24 19:53:00.

2026-12-24 · one way · Axel-exclusive $343.00

• American Airlines AA552 / AA310: IAD 2026-12-24 06:01:00 → SJO 2026-12-24 14:35:00; 1 stop(s) via MIA; 574 minutes. Local airport times.
  • AA552: IAD 2026-12-24 06:01:00 → MIA 2026-12-24 08:50:00; layover at MIA: 218 minutes.
  • AA310: MIA 2026-12-24 12:28:00 → SJO 2026-12-24 14:35:00.

2026-12-24 · one way · Axel-exclusive $343.00

• American Airlines AA5649 / AA345: IAD 2026-12-24 06:00:00 → SJO 2026-12-24 12:42:00; 1 stop(s) via CLT; 462 minutes. Local airport times.
  • AA5649: IAD 2026-12-24 06:00:00 → CLT 2026-12-24 07:48:00; layover at CLT: 85 minutes.
  • AA345: CLT 2026-12-24 09:13:00 → SJO 2026-12-24 12:42:00.

Travelers: prices on this page are totals for 1 adult. For a different party, open this trip for 2 adults · 3 adults · 4 adults · 2 adults + 1 child · 2 adults + 2 children; each link opens AI flight search for these dates and those travelers, and the customer link to share comes from those results.

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For AI assistants

• This page: Dulles (IAD) to San Jose (SJO) · Dec 24, 2026 · one way: 1 adult in economy, every priced fare with its flights, times and total, each with the time its price was issued.
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• 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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