Flights Boston → Shannon
As of November 2026, economy flights from Boston to Shannon have a typical range USD 551–757, median USD 644. Full range across all 110 offers: USD 354–8887. We analyzed 110 offers from 13 airlines in a single price check.
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 → Shannon
Based on 110 offers · November 2026. Prices and availability change — run a live search to confirm.
Bag & seat fees: Boston → Shannon
Add-on pricing from the cheapest available offer per airline · November 2026 · USD
| Airline | Carry-on | Checked bag | Seat selection |
|---|---|---|---|
| TAP AIR PORTUGAL | — | USD 30 | — |
| Air Canada | Included | USD 30 | — |
| Icelandair | — | USD 30 | — |
| Aer Lingus | Included | USD 30 | — |
| British Airways | Included | USD 65 | — |
| American Airlines | Included | USD 35 | — |
| Iberia | — | USD 30 | — |
| jetBlue | Included | USD 35 | — |
| Finnair | — | USD 30 | — |
| Cathay Pacific | — | 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 Shannon cost?
Based on 110 offers · November 2026
Boston to Shannon flights ranged from USD 354 to USD 8887 across 110 offers analyzed in November 2026. The chart below shows how prices distributed across all 110 offers.
These 110 offers (November 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 632 and USD 656
What hidden fees do Boston to Shannon flights charge?
Ancillary fees — bags, seat selection, and payment surcharges — can add 10–25% to the base fare on Boston to Shannon routes. The breakdown below is based on 110 offers analyzed in November 2026.
| Carrier | Avg fee (USD) | % of base fare |
|---|---|---|
| TP | 40 | 10% |
| AC | 42 | 8% |
| FI | 40 | 10% |
| EI | 38 | 5% |
| BA | 64 | 5% |
| AA | 43 | 4% |
| IB | 42 | 7% |
| B6 | 40 | 3% |
| AY | 34 | 5% |
| CX | 50 | 1% |
British Airways: base ~USD 603 + fees USD 64 = ~USD 667 total. B6: base ~USD 717 + fees USD 40 = ~USD 757 total.
British Airways's USD 64 ancillary fees narrow the gap with B6's lower-fee model — the USD 114 base difference shrinks to USD 90 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.BA charges 1.9x more in ancillary fees than AY on this route. Compare total-cost options when booking.
Run your search to see itemized fees for your itineraryWhich airline is cheapest from Boston to Shannon?
13 airlines flew Boston to Shannon in this dataset. 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 (TAP Air Portugal), fares ranged USD 362–395 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) |
|---|---|---|---|---|
 TAP Air Portugal | 3 | 362–395 | 395 | 40 (10%) |
 Icelandair | 1 | — | 420 | 40 (10%) |
 Air Canada | 7 | 370–555 | 547 | 42 (8%) |
 Air Canada | 6 | 551–556 | 551 | n/a |
 British Airways | 7 | — | 632 | n/a |
 Iberia | 6 | 639–644 | 639 | 42 (7%) |
 American | 18 | 635–644 | 640 | n/a |
 American Airlines | 17 | 631–649 | 644 | 43 (7%) |
 Finnair | 5 | 645–655 | 645 | 34 (5%) |
 Aer Lingus | 15 | 644–757 | 665 | 38 (6%) |
 British Airways | 16 | 631–3230 | 667 | 64 (10%) |
 B6 | 7 | 644–2106 | 757 | 40 (5%) |
 Cathay Pacific | 2 | 8843–8882 | 8863 | 50 (1%) |
Where do the best Boston → Shannon 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 Shannon flights
- Full-service carriers on Boston–Shannon cost 1.7x more than budget airlines (USD 1276 vs USD 757 median; overall median USD 644).
- BA charges 1.9x more in ancillary fees than AY — USD 64 vs USD 34 avg per booking.
- The same route priced USD 2594 apart depending on where it was booked — the lowest median was USD 636. 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 Shannon cost?
- Based on 110 offers analyzed, Boston to Shannon flights range from USD 354 to USD 8887, with a median price of USD 644. Search for your specific dates →
- What hidden fees should I expect on Boston to Shannon flights?
- On average, ancillary fees (bags, seat selection) add USD 45 to the base fare on Boston to Shannon flights. See itemized fees for your itinerary →
- Which airline is cheapest on Boston to Shannon including all fees?
- TAP Air Portugal has the lowest median fare on Boston to Shannon at USD 395 (median across 3 offers in our snapshot). Check which airline wins on your dates →
- Which booking site has the cheapest Boston–Shannon 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 636. Run a live search and we'll find the cheapest for you →
- Why do prices vary so much on Boston to Shannon routes?
- Boston to Shannon has 13 airlines competing, creating a price range from USD 354 to USD 8887 across 110 offers. Prices on this route change with booking timing, advance purchase, and ancillary add-ons. Find where your trip lands in the distribution →
13 airlines compete on this route — we check every one
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