Flights Boston → Lisbon
As of October 2026, economy flights from Boston to Lisbon have a typical range USD 745–1089, median USD 762. Full range across all 236 offers: USD 713–1281. We found 26% of 236 offers from budget carriers (around USD 756) and 74% from full-service carriers (around USD 762).
Preview snapshot — prices change. Search for live results.
Data collected by LetsFG's multi-source price checks — every airline and the major booking sites checked for this route. How we collect data →
Best offers by airline: Boston → Lisbon
Based on 236 offers · October 2026. Prices and availability change — run a live search to confirm.
Bag & seat fees: Boston → Lisbon
Add-on pricing from the cheapest available offer per airline · October 2026 · USD
| Airline | Carry-on | Checked bag | Seat selection |
|---|---|---|---|
| TAP AIR PORTUGAL | Included | USD 104 | — |
| Air Canada | Included | USD 30 | — |
| American Airlines | Included | USD 35 | — |
| Delta | Included | USD 35 | — |
| Air France | Included | USD 35 | — |
| Virgin Atlantic | Included | Included | — |
| KLM | Included | USD 35 | — |
| Iberia | Included | USD 30 | — |
| SWISS | Included | USD 40 | — |
| United | Included | USD 35 | — |
| British Airways | Included | USD 65 | — |
| Austrian Airlines | Included | USD 35 | — |
| Azores Airlines | Included | USD 25 | — |
| Lufthansa | Included | USD 35 | — |
| Aer Lingus | Included | USD 30 | — |
| Finnair | Included | USD 30 | — |
| Turkish Airlines | Included | Included | — |
| JetBlue | Included | — | — |
Fees are estimates from the prices we checked and may not reflect your specific itinerary, booking class, or payment method. Run a live search for exact pricing.
How much do flights from Boston to Lisbon cost?
Based on 236 offers · October 2026
Boston to Lisbon flights ranged from USD 713 to USD 1281 across 236 offers analyzed in October 2026. Two fare clusters detected: budget fares around 741 and premium fares around 1082 The chart below shows how prices distributed across all 236 offers.
These 236 offers (October 2026) span multiple departure dates and booking windows — your travel dates may fall anywhere in this distribution. Only a live search shows where your specific trip lands.
50% of offers priced between USD 755 and USD 769
What hidden fees do Boston to Lisbon flights charge?
Ancillary fees — bags, seat selection, and payment surcharges — can add 10–25% to the base fare on Boston to Lisbon routes. The breakdown below is based on 236 offers analyzed in October 2026.
| Carrier | Avg fee (USD) | % of base fare |
|---|---|---|
| TP | 59 | 6% |
| AC | 51 | 6% |
| AA | 45 | 6% |
| DL | 41 | 5% |
| AF | 65 | 8% |
| VS | 20 | 3% |
| KL | 81 | 10% |
| IB | 42 | 5% |
| LX | 52 | 7% |
| UA | 45 | 6% |
| BA | 80 | 10% |
| OS | 45 | 6% |
| S4 | 33 | 3% |
| LH | 45 | 6% |
| EI | 38 | 4% |
| AY | 40 | 4% |
| TK | 10 | 1% |
| B6 | 10 | 1% |
KLM: base ~USD 681 + fees USD 81 = ~USD 762 total. Turkish Airlines: base ~USD 975 + fees USD 10 = ~USD 985 total.
KLM's USD 81 ancillary fees narrow the gap with Turkish Airlines's lower-fee model — the USD 294 base difference shrinks to USD 223 after fees. Always compare total cost, not just the advertised base fare.
Estimates based on median total minus average ancillary fee. Actual base fares vary by itinerary.Fee levels vary significantly across carriers on this route — some carriers charge 50%+ above the base fare in ancillary fees.
Run your search to see itemized fees for your itineraryWhich airline is cheapest from Boston to Lisbon?
19 airlines flew Boston to Lisbon in this dataset. The route shows a clear split between low-cost and full-service carriers. Knowing the airline isn't enough — the typical fare range below shows how far prices swing on each one. Median and range include all fees we recorded.
Even on the cheapest airline (American), fares ranged USD 739–755 in this snapshot. Your exact price depends on your dates and how far ahead you book — run a live search to see your number →
| Airline | Offers | Typical range (USD) | Median (USD) | Fees (USD) |
|---|---|---|---|---|
 American | 5 | 739–755 | 746 | n/a |
 American Airlines | 23 | 746–768 | 750 | 45 (6%) |
 Air Canada | 20 | 734–796 | 752 | 51 (7%) |
 Virgin Atlantic | 6 | 750–762 | 755 | 20 (3%) |
 Swiss | 8 | 753–770 | 756 | 52 (7%) |
 United Airlines | 38 | 758–766 | 762 | 45 (6%) |
 Air France | 28 | 756–1149 | 762 | 65 (9%) |
 KLM | 22 | 752–1152 | 762 | 81 (11%) |
 Delta Air Lines | 19 | 752–842 | 763 | 41 (5%) |
 British Airways | 11 | 761–770 | 764 | 80 (10%) |
 Austrian | 4 | 778–814 | 793 | 45 (6%) |
 Lufthansa | 1 | — | 804 | 45 (6%) |
 Iberia | 3 | 769–1037 | 845 | 42 (5%) |
 Azores Airlines | 4 | 827–1086 | 966 | 33 (3%) |
 Turkish Airlines | 1 | — | 985 | 10 (1%) |
 TAP Air Portugal | 33 | 715–1089 | 985 | 59 (6%) |
 Aer Lingus | 5 | 908–1133 | 1087 | 38 (3%) |
 Finnair | 4 | 931–1279 | 1105 | 40 (4%) |
 B6 | 1 | — | 1281 | 10 (1%) |
Where do the best Boston → Lisbon prices come from?
We checked direct airlines, travel agencies, and meta-search for this route. On this route the lowest median came from travel agency sources, but the cheapest channel shifts by route and date — which is exactly why a live search across all of them wins.
We compare every airline and the major booking sites but never disclose which — that's our edge. Prices are the ones we observed and aren't official data from any platform. Run a live search and we bring you the cheapest, wherever it is.
Key facts: Boston to Lisbon flights
- Full-service carriers on Boston–Lisbon cost 0.7x more than budget airlines (USD 841 vs USD 1281 median; overall median USD 762).
- KL charges 8.1x more in ancillary fees than B6 — USD 81 vs USD 10 avg per booking.
- The same route priced USD 297 apart depending on where it was booked — the lowest median was USD 746. We search every airline and the major booking sites at once so you always see that lowest price.
Frequently asked questions
- How much does a flight from Boston to Lisbon cost?
- Based on 236 offers analyzed, Boston to Lisbon flights range from USD 713 to USD 1281, with a median price of USD 762. Search for your specific dates →
- What hidden fees should I expect on Boston to Lisbon flights?
- On average, ancillary fees (bags, seat selection) add USD 53 to the base fare on Boston to Lisbon flights. See itemized fees for your itinerary →
- Which airline is cheapest on Boston to Lisbon including all fees?
- American has the lowest median fare on Boston to Lisbon at USD 746 (median across 5 offers in our snapshot). Check which airline wins on your dates →
- Which booking site has the cheapest Boston–Lisbon flights?
- It depends on your dates — no single site is always cheapest. We search every airline and the major booking sites at once (travel agencies and meta-search included) and surface whichever is lowest; the best median in this snapshot was USD 746. Run a live search and we'll find the cheapest for you →
- Why do prices vary so much on Boston to Lisbon routes?
- Boston to Lisbon has 19 airlines competing, creating a price range from USD 713 to USD 1281 across 236 offers. There are two distinct fare clusters on this route: budget options and premium fares. Find where your trip lands in the distribution →
19 airlines, two price clusters — find which fits your budget
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