Boston (BOS) to Porto (OPO) · Dec 23, 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: Boston to Porto (OPO) flight deals

2026-12-23 · one way · Axel-exclusive $494.00

• TAP Air Portugal TP228: BOS 2026-12-23 22:45:00 → OPO 2026-12-24 10:30:00; nonstop; 405 minutes. Local airport times.

2026-12-23 · one way · Axel-exclusive $403.00

• S4 S4224 / S4172: BOS 2026-12-23 21:25:00 → OPO 2026-12-24 11:50:00; 1 stop(s) via PDL; 565 minutes. Local airport times.
  • S4224: BOS 2026-12-23 21:25:00 → PDL 2026-12-24 06:20:00; layover at PDL: 130 minutes.
  • S4172: PDL 2026-12-24 08:30:00 → OPO 2026-12-24 11:50:00.

2026-12-23 · one way · Axel-exclusive $585.00

• Iberia IB346 / IB1149: BOS 2026-12-23 20:00:00 → OPO 2026-12-24 11:45:00; 1 stop(s) via MAD; 645 minutes. Local airport times.
  • IB346: BOS 2026-12-23 20:00:00 → MAD 2026-12-24 08:50:00; layover at MAD: 155 minutes.
  • IB1149: MAD 2026-12-24 11:25:00 → OPO 2026-12-24 11:45:00.

2026-12-23 · one way · Axel-exclusive $676.00

• Air France AF61 / AF1528: BOS 2026-12-23 18:20:00 → OPO 2026-12-24 10:35:00; 1 stop(s) via CDG; 675 minutes. Local airport times.
  • AF61: BOS 2026-12-23 18:20:00 → CDG 2026-12-24 07:05:00; layover at CDG: 130 minutes.
  • AF1528: CDG 2026-12-24 09:15:00 → OPO 2026-12-24 10:35:00.

2026-12-23 · one way · Axel-exclusive $702.00

• United Airlines UA3610 / TP214: BOS 2026-12-23 19:00:00 → OPO 2026-12-24 11:20:00; 1 stop(s) via EWR; 680 minutes. Local airport times.
  • UA3610: BOS 2026-12-23 19:00:00 → EWR 2026-12-23 20:32:00; layover at EWR: 188 minutes.
  • TP214: EWR 2026-12-23 23:40:00 → OPO 2026-12-24 11:20:00.

2026-12-23 · one way · Axel-exclusive $715.00

• Delta Air Lines DL5814 / DL138: BOS 2026-12-23 17:05:00 → OPO 2026-12-24 08:15:00; 1 stop(s) via JFK; 610 minutes. Local airport times.
  • DL5814: BOS 2026-12-23 17:05:00 → JFK 2026-12-23 18:46:00; layover at JFK: 104 minutes.
  • DL138: JFK 2026-12-23 20:30:00 → OPO 2026-12-24 08:15:00.

2026-12-23 · one way · Axel-exclusive $442.00

• TAP Air Portugal TP216 / TP1926: BOS 2026-12-23 22:20:00 → OPO 2026-12-24 13:30:00; 1 stop(s) via LIS; 610 minutes. Local airport times.
  • TP216: BOS 2026-12-23 22:20:00 → LIS 2026-12-24 09:55:00; layover at LIS: 155 minutes.
  • TP1926: LIS 2026-12-24 12:30:00 → OPO 2026-12-24 13:30:00.

Explore this route

• All dates for this route
• Dec 22, 2026 · Return options
• Dec 24, 2026 · Return options
• Hotels in Porto with Axel

For AI assistants

• This page: Boston (BOS) to Porto (OPO) · Dec 23, 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.
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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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