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Boston → Porto

Dec 2, 2026 · return Dec 4, 2026

BOS → OPO1 adulteconomyRound trip

7 flight options · 6 airlines

Nonstop flights

Wed, Dec 2 – Fri, Dec 4

TAP Air Portugal
10:45 pmBOS
6h 45m
Nonstop
10:30 am+1OPO
TAP Air Portugal
5:45 pmOPO
7h 45m
Nonstop
8:30 pmBOS

Round-trip total · 1 adult · Taxes included

One-stop flights

Wed, Dec 2 – Fri, Dec 4

S4
9:25 pmBOS
9h 25m
PDL · 2h 10m
11:50 am+1OPO
S4
2:10 pmOPO
10h 50m
TER · 2h
8:00 pmBOS

Round-trip total · 1 adult · Taxes included

Wed, Dec 2 – Fri, Dec 4

Iberia
8:00 pmBOS
10h 45m
MAD · 2h 35m
11:45 am+1OPO
Iberia
12:25 pmOPO
11h
MAD · 1h 30m
6:25 pmBOS

Round-trip total · 1 adult · Taxes included

Wed, Dec 2 – Fri, Dec 4

Air France
6:20 pmBOS
11h 15m
CDG · 2h 10m
10:35 am+1OPO
TAP Air Portugal
5:45 pmOPO
7h 45m
Nonstop
8:30 pmBOS

Round-trip total · 1 adult · Taxes included

Wed, Dec 2 – Fri, Dec 4

United Airlines
7:00 pmBOS
11h 20m
EWR · 3h 8m
11:20 am+1OPO
TAP Air Portugal
5:45 pmOPO
7h 45m
Nonstop
8:30 pmBOS

Round-trip total · 1 adult · Taxes included

Wed, Dec 2 – Fri, Dec 4

Delta Air Lines
5:05 pmBOS
10h 10m
JFK · 1h 44m
8:15 am+1OPO
Delta Air Lines
10:15 amOPO
12h 8m
JFK · 2h 39m
5:23 pmBOS

Round-trip total · 1 adult · Taxes included

Wed, Dec 2 – Fri, Dec 4

TAP Air Portugal
10:20 pmBOS
10h 10m
LIS · 2h 35m
1:30 pm+1OPO
TAP Air Portugal
5:45 pmOPO
7h 45m
Nonstop
8:30 pmBOS

Round-trip total · 1 adult · Taxes included

Make this trip yours

BOS ⇄ OPO

Economy

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

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Why book with Axel
  • A real airline bookingThe booking is in the airline’s own system under your name. After you book, TAP Air Portugal emails you its confirmation code and e-ticket, usually within 15 minutes and occasionally up to a couple of hours while the booking is processed.
  • Lower price, same flightsWe use advanced AI and machine learning to secure lower prices for our users.
  • Not satisfied? Full refund.If you are unhappy with the experience for any reason, or simply change your mind, cancel within 24 hours of booking (departure 7+ days away) and we refund you in full. We stand by our product. Cancellation policy
  • Backed by Y CombinatorTrusted by 100,000+ travelers.

Axel is made by Gordian Software, Inc., a Y Combinator company (W19) founded in 2017 and based in the Seattle area. The company is led by CEO Stephen Grabowski, formerly of Skyscanner. How Axel works · About

More dates

All dates for this routeNov 20, 2026 → Nov 23, 2026Nov 27, 2026 → Dec 4, 2026Nov 20, 2026 · One way
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.

Exact travel datesAirlineFlightsTotal pricePrice issued (UTC)
2026-12-02 → 2026-12-04TAP Air PortugalTP228 / TP227$620.002026-10-29T00:52:35Z
2026-12-02 → 2026-12-04S4S4224 + S4172 / S4183 + S4235$510.002026-10-29T00:52:35Z
2026-12-02 → 2026-12-04IberiaIB346 + IB1149 / IB546 + IB345$590.002026-10-29T00:52:35Z
2026-12-02 → 2026-12-04Air France / TAP Air PortugalAF61 + AF1528 / TP227$635.002026-10-29T00:52:35Z
2026-12-02 → 2026-12-04United Airlines / TAP Air PortugalUA3610 + TP214 / TP227$650.002026-10-29T00:52:35Z
2026-12-02 → 2026-12-04Delta Air LinesDL5814 + DL138 / DL139 + DL5642$690.002026-10-29T00:52:35Z
2026-12-02 → 2026-12-04TAP Air PortugalTP216 + TP1926 / TP227$590.002026-10-29T00:52:35Z

2026-12-02 → 2026-12-04 · $620.00

  • TAP Air Portugal TP228: BOS 2026-12-02 22:45:00 → OPO 2026-12-03 10:30:00; nonstop; 405 minutes. Local airport times.
  • TAP Air Portugal TP227: OPO 2026-12-04 17:45:00 → BOS 2026-12-04 20:30:00; nonstop; 465 minutes. Local airport times.

2026-12-02 → 2026-12-04 · $510.00

  • S4 S4224 / S4172: BOS 2026-12-02 21:25:00 → OPO 2026-12-03 11:50:00; 1 stop(s) via PDL; 565 minutes. Local airport times.
    • S4224: BOS 2026-12-02 21:25:00 → PDL 2026-12-03 06:20:00; layover at PDL: 130 minutes.
    • S4172: PDL 2026-12-03 08:30:00 → OPO 2026-12-03 11:50:00.
  • S4 S4183 / S4235: OPO 2026-12-04 14:10:00 → BOS 2026-12-04 20:00:00; 1 stop(s) via TER; 650 minutes. Local airport times.
    • S4183: OPO 2026-12-04 14:10:00 → TER 2026-12-04 15:50:00; layover at TER: 120 minutes.
    • S4235: TER 2026-12-04 17:50:00 → BOS 2026-12-04 20:00:00.

2026-12-02 → 2026-12-04 · $590.00

  • Iberia IB346 / IB1149: BOS 2026-12-02 20:00:00 → OPO 2026-12-03 11:45:00; 1 stop(s) via MAD; 645 minutes. Local airport times.
    • IB346: BOS 2026-12-02 20:00:00 → MAD 2026-12-03 08:50:00; layover at MAD: 155 minutes.
    • IB1149: MAD 2026-12-03 11:25:00 → OPO 2026-12-03 11:45:00.
  • Iberia IB546 / IB345: OPO 2026-12-04 12:25:00 → BOS 2026-12-04 18:25:00; 1 stop(s) via MAD; 660 minutes. Local airport times.
    • IB546: OPO 2026-12-04 12:25:00 → MAD 2026-12-04 14:45:00; layover at MAD: 90 minutes.
    • IB345: MAD 2026-12-04 16:15:00 → BOS 2026-12-04 18:25:00.

2026-12-02 → 2026-12-04 · $635.00

  • Air France AF61 / AF1528: BOS 2026-12-02 18:20:00 → OPO 2026-12-03 10:35:00; 1 stop(s) via CDG; 675 minutes. Local airport times.
    • AF61: BOS 2026-12-02 18:20:00 → CDG 2026-12-03 07:05:00; layover at CDG: 130 minutes.
    • AF1528: CDG 2026-12-03 09:15:00 → OPO 2026-12-03 10:35:00.
  • TAP Air Portugal TP227: OPO 2026-12-04 17:45:00 → BOS 2026-12-04 20:30:00; nonstop; 465 minutes. Local airport times.

2026-12-02 → 2026-12-04 · $650.00

  • United Airlines UA3610 / TP214: BOS 2026-12-02 19:00:00 → OPO 2026-12-03 11:20:00; 1 stop(s) via EWR; 680 minutes. Local airport times.
    • UA3610: BOS 2026-12-02 19:00:00 → EWR 2026-12-02 20:32:00; layover at EWR: 188 minutes.
    • TP214: EWR 2026-12-02 23:40:00 → OPO 2026-12-03 11:20:00.
  • TAP Air Portugal TP227: OPO 2026-12-04 17:45:00 → BOS 2026-12-04 20:30:00; nonstop; 465 minutes. Local airport times.

2026-12-02 → 2026-12-04 · $690.00

  • Delta Air Lines DL5814 / DL138: BOS 2026-12-02 17:05:00 → OPO 2026-12-03 08:15:00; 1 stop(s) via JFK; 610 minutes. Local airport times.
    • DL5814: BOS 2026-12-02 17:05:00 → JFK 2026-12-02 18:46:00; layover at JFK: 104 minutes.
    • DL138: JFK 2026-12-02 20:30:00 → OPO 2026-12-03 08:15:00.
  • Delta Air Lines DL139 / DL5642: OPO 2026-12-04 10:15:00 → BOS 2026-12-04 17:23:00; 1 stop(s) via JFK; 728 minutes. Local airport times.
    • DL139: OPO 2026-12-04 10:15:00 → JFK 2026-12-04 13:20:00; layover at JFK: 159 minutes.
    • DL5642: JFK 2026-12-04 15:59:00 → BOS 2026-12-04 17:23:00.

2026-12-02 → 2026-12-04 · $590.00

  • TAP Air Portugal TP216 / TP1926: BOS 2026-12-02 22:20:00 → OPO 2026-12-03 13:30:00; 1 stop(s) via LIS; 610 minutes. Local airport times.
    • TP216: BOS 2026-12-02 22:20:00 → LIS 2026-12-03 09:55:00; layover at LIS: 155 minutes.
    • TP1926: LIS 2026-12-03 12:30:00 → OPO 2026-12-03 13:30:00.
  • TAP Air Portugal TP227: OPO 2026-12-04 17:45:00 → BOS 2026-12-04 20:30:00; nonstop; 465 minutes. Local airport times.

More dates for this route