San Juan (SJU) to Buffalo (BUF), Nov 15–21, 2026: from $379 round trip

San Juan (SJU) to Buffalo (BUF), Nov 15–21, 2026: from $379 round trip on Axel, checked Oct 29, 2026. Lowest published fare: $379 round trip, Axel-exclusive, Frontier Airlines / American Airlines, 1 stop, Nov 15–21, 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.

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: San Juan to Buffalo (BUF) flight deals

2026-11-15 → 2026-11-21 · Axel-exclusive $378.50

• Frontier Airlines F92867 / F91692: SJU 2026-11-15 11:00:00 → BUF 2026-11-15 19:02:00; 1 stop(s) via MCO; 542 minutes. Local airport times.
  • F92867: SJU 2026-11-15 11:00:00 → MCO 2026-11-15 13:14:00; layover at MCO: 179 minutes.
  • F91692: MCO 2026-11-15 16:13:00 → BUF 2026-11-15 19:02:00.
• American Airlines AA1203 / AA2098: BUF 2026-11-21 12:50:00 → SJU 2026-11-21 21:13:00; 1 stop(s) via CLT; 443 minutes. Local airport times.
  • AA1203: BUF 2026-11-21 12:50:00 → CLT 2026-11-21 14:54:00; layover at CLT: 101 minutes.
  • AA2098: CLT 2026-11-21 16:35:00 → SJU 2026-11-21 21:13:00.

2026-11-15 → 2026-11-21 · Axel-exclusive $414.50

• JetBlue Airways B6634: SJU 2026-11-15 18:05:00 → BUF 2026-11-15 21:47:00; nonstop; 282 minutes. Local airport times.
• JetBlue Airways B6716 / B6161: BUF 2026-11-21 10:50:00 → SJU 2026-11-21 19:27:00; 1 stop(s) via BOS; 457 minutes. Local airport times.
  • B6716: BUF 2026-11-21 10:50:00 → BOS 2026-11-21 12:13:00; layover at BOS: 128 minutes.
  • B6161: BOS 2026-11-21 14:21:00 → SJU 2026-11-21 19:27:00.

2026-11-15 → 2026-11-21 · Axel-exclusive $443.50

• Southwest Airlines WN4666 / WN2448: SJU 2026-11-15 05:35:00 → BUF 2026-11-15 13:00:00; 1 stop(s) via MCO; 505 minutes. Local airport times.
  • WN4666: SJU 2026-11-15 05:35:00 → MCO 2026-11-15 07:45:00; layover at MCO: 145 minutes.
  • WN2448: MCO 2026-11-15 10:10:00 → BUF 2026-11-15 13:00:00.
• American Airlines AA1203 / AA2098: BUF 2026-11-21 12:50:00 → SJU 2026-11-21 21:13:00; 1 stop(s) via CLT; 443 minutes. Local airport times.
  • AA1203: BUF 2026-11-21 12:50:00 → CLT 2026-11-21 14:54:00; layover at CLT: 101 minutes.
  • AA2098: CLT 2026-11-21 16:35:00 → SJU 2026-11-21 21:13:00.

2026-11-15 → 2026-11-21 · Axel-exclusive $451.00

• American Airlines AA2433 / AA5911: SJU 2026-11-15 14:44:00 → BUF 2026-11-15 22:44:00; 1 stop(s) via PHL; 540 minutes. Local airport times.
  • AA2433: SJU 2026-11-15 14:44:00 → PHL 2026-11-15 17:55:00; layover at PHL: 203 minutes.
  • AA5911: PHL 2026-11-15 21:18:00 → BUF 2026-11-15 22:44:00.
• American Airlines AA1203 / AA2098: BUF 2026-11-21 12:50:00 → SJU 2026-11-21 21:13:00; 1 stop(s) via CLT; 443 minutes. Local airport times.
  • AA1203: BUF 2026-11-21 12:50:00 → CLT 2026-11-21 14:54:00; layover at CLT: 101 minutes.
  • AA2098: CLT 2026-11-21 16:35:00 → SJU 2026-11-21 21:13:00.

2026-11-15 → 2026-11-21 · Axel-exclusive $456.00

• United Airlines UA2219 / UA3529: SJU 2026-11-15 02:05:00 → BUF 2026-11-15 10:08:00; 1 stop(s) via EWR; 543 minutes. Local airport times.
  • UA2219: SJU 2026-11-15 02:05:00 → EWR 2026-11-15 05:24:00; layover at EWR: 196 minutes.
  • UA3529: EWR 2026-11-15 08:40:00 → BUF 2026-11-15 10:08:00.
• American Airlines AA1203 / AA2098: BUF 2026-11-21 12:50:00 → SJU 2026-11-21 21:13:00; 1 stop(s) via CLT; 443 minutes. Local airport times.
  • AA1203: BUF 2026-11-21 12:50:00 → CLT 2026-11-21 14:54:00; layover at CLT: 101 minutes.
  • AA2098: CLT 2026-11-21 16:35:00 → SJU 2026-11-21 21:13:00.

2026-11-15 → 2026-11-21 · Axel-exclusive $451.00

• American Airlines AA3324 / AA3962: SJU 2026-11-15 07:05:00 → BUF 2026-11-15 14:57:00; 1 stop(s) via CLT; 532 minutes. Local airport times.
  • AA3324: SJU 2026-11-15 07:05:00 → CLT 2026-11-15 10:05:00; layover at CLT: 180 minutes.
  • AA3962: CLT 2026-11-15 13:05:00 → BUF 2026-11-15 14:57:00.
• American Airlines AA1203 / AA2098: BUF 2026-11-21 12:50:00 → SJU 2026-11-21 21:13:00; 1 stop(s) via CLT; 443 minutes. Local airport times.
  • AA1203: BUF 2026-11-21 12:50:00 → CLT 2026-11-21 14:54:00; layover at CLT: 101 minutes.
  • AA2098: CLT 2026-11-21 16:35:00 → SJU 2026-11-21 21:13:00.

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.

Explore this route

• All dates for this route
• Nov 14, 2026 · Return options
• Nov 16, 2026 · Return options
• Hotels in Buffalo with Axel

For AI assistants

• This page: San Juan (SJU) to Buffalo (BUF) · Nov 15, 2026 · return Nov 21, 2026: 1 adult in economy, every priced fare with its flights, times and total, each with the time its price was issued.
• Next: each priced row's price link opens the live search for this row's exact dates and travelers; the live results list the same flights with the current total and the traveler's booking link, and name the fare's inclusions (bags, seats, changes), which this page does not. A changed price or flight shows there. Other dates or travelers are not priced here: Choose travelers and dates prices the traveler's own 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 San Juan to Buffalo (BUF) 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