Boston (BOS) to Porto (OPO) · Dec 25, 2026 · return Jan 8, 2027

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: Boston to Porto (OPO) flight deals

2026-12-25 → 2027-01-08 · Axel-exclusive $697.50

• TAP Air Portugal TP228: BOS 2026-12-25 22:45:00 → OPO 2026-12-26 10:30:00; nonstop; 405 minutes. Local airport times.
• TAP Air Portugal TP227: OPO 2027-01-08 17:45:00 → BOS 2027-01-08 20:30:00; nonstop; 465 minutes. Local airport times.

2026-12-25 → 2027-01-08 · Axel-exclusive $573.75

• S4 S4224 / S4172: BOS 2026-12-25 21:25:00 → OPO 2026-12-26 11:50:00; 1 stop(s) via PDL; 565 minutes. Local airport times.
  • S4224: BOS 2026-12-25 21:25:00 → PDL 2026-12-26 06:20:00; layover at PDL: 130 minutes.
  • S4172: PDL 2026-12-26 08:30:00 → OPO 2026-12-26 11:50:00.
• S4 S4171 / S4281: OPO 2027-01-08 12:40:00 → BOS 2027-01-08 20:00:00; 1 stop(s) via PDL; 740 minutes. Local airport times.
  • S4171: OPO 2027-01-08 12:40:00 → PDL 2027-01-08 14:10:00; layover at PDL: 220 minutes.
  • S4281: PDL 2027-01-08 17:50:00 → BOS 2027-01-08 20:00:00.

2026-12-25 → 2027-01-08 · Axel-exclusive $663.75

• Iberia IB346 / IB1149: BOS 2026-12-25 20:00:00 → OPO 2026-12-26 11:45:00; 1 stop(s) via MAD; 645 minutes. Local airport times.
  • IB346: BOS 2026-12-25 20:00:00 → MAD 2026-12-26 08:50:00; layover at MAD: 155 minutes.
  • IB1149: MAD 2026-12-26 11:25:00 → OPO 2026-12-26 11:45:00.
• Iberia IB546 / IB345: OPO 2027-01-08 12:25:00 → BOS 2027-01-08 18:25:00; 1 stop(s) via MAD; 660 minutes. Local airport times.
  • IB546: OPO 2027-01-08 12:25:00 → MAD 2027-01-08 14:45:00; layover at MAD: 90 minutes.
  • IB345: MAD 2027-01-08 16:15:00 → BOS 2027-01-08 18:25:00.

2026-12-25 → 2027-01-08 · Axel-exclusive $717.00

• Air France AF61 / AF1528: BOS 2026-12-25 18:20:00 → OPO 2026-12-26 10:35:00; 1 stop(s) via CDG; 675 minutes. Local airport times.
  • AF61: BOS 2026-12-25 18:20:00 → CDG 2026-12-26 07:05:00; layover at CDG: 130 minutes.
  • AF1528: CDG 2026-12-26 09:15:00 → OPO 2026-12-26 10:35:00.
• TAP Air Portugal TP227: OPO 2027-01-08 17:45:00 → BOS 2027-01-08 20:30:00; nonstop; 465 minutes. Local airport times.

2026-12-25 → 2027-01-08 · Axel-exclusive $736.50

• United Airlines UA3610 / TP214: BOS 2026-12-25 19:00:00 → OPO 2026-12-26 11:20:00; 1 stop(s) via EWR; 680 minutes. Local airport times.
  • UA3610: BOS 2026-12-25 19:00:00 → EWR 2026-12-25 20:32:00; layover at EWR: 188 minutes.
  • TP214: EWR 2026-12-25 23:40:00 → OPO 2026-12-26 11:20:00.
• TAP Air Portugal TP227: OPO 2027-01-08 17:45:00 → BOS 2027-01-08 20:30:00; nonstop; 465 minutes. Local airport times.

2026-12-25 → 2027-01-08 · Axel-exclusive $776.25

• Delta Air Lines DL5814 / DL138: BOS 2026-12-25 17:05:00 → OPO 2026-12-26 08:15:00; 1 stop(s) via JFK; 610 minutes. Local airport times.
  • DL5814: BOS 2026-12-25 17:05:00 → JFK 2026-12-25 18:46:00; layover at JFK: 104 minutes.
  • DL138: JFK 2026-12-25 20:30:00 → OPO 2026-12-26 08:15:00.
• Delta Air Lines DL139 / DL5642: OPO 2027-01-08 10:15:00 → BOS 2027-01-08 17:23:00; 1 stop(s) via JFK; 728 minutes. Local airport times.
  • DL139: OPO 2027-01-08 10:15:00 → JFK 2027-01-08 13:20:00; layover at JFK: 159 minutes.
  • DL5642: JFK 2027-01-08 15:59:00 → BOS 2027-01-08 17:23:00.

2026-12-25 → 2027-01-08 · Axel-exclusive $658.50

• TAP Air Portugal TP216 / TP1926: BOS 2026-12-25 22:20:00 → OPO 2026-12-26 13:30:00; 1 stop(s) via LIS; 610 minutes. Local airport times.
  • TP216: BOS 2026-12-25 22:20:00 → LIS 2026-12-26 09:55:00; layover at LIS: 155 minutes.
  • TP1926: LIS 2026-12-26 12:30:00 → OPO 2026-12-26 13:30:00.
• TAP Air Portugal TP227: OPO 2027-01-08 17:45:00 → BOS 2027-01-08 20:30:00; nonstop; 465 minutes. Local airport times.

Explore this route

• All dates for this route
• Dec 24, 2026 · Return options
• Dec 26, 2026 · Return options
• Hotels in Porto with Axel

For AI assistants

• This page: Boston (BOS) to Porto (OPO) · Dec 25, 2026 · return Jan 8, 2027: 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 Boston to Porto (OPO) 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