$365 Find Cheap Flights from Shannon to Boston - Compare and Save

The airport has multiple lounges, but passengers on flights departing to the U.S. can only use the Boru Lounge. It's €25 per person when you pre-book online (or €27.50 if you pay at the door). It's open from 06:00-19:00 from Sunday to Friday, and closes a little earlier at 17:25 on Saturdays. You'll have access to phones and a TV, shower services to freshen up, and complimentary alcoholic and non-alcoholic beverages. Make sure you arrive at the airport a little early to enjoy the lounge; you can only use the Boru Lounge before you go through U.S. preclearance.

The Silver Line Bus (SL1) travels between all of the airport's terminals and central Boston's South Station. It's free to use from the airport into the city, and from the city to the airport it's around $2 (€1.70). The bus takes 25-30min to get to Boston's South Station. From there, you can transfer to the red line metro; it connects to Boston's other subway lines, and it's a fast and easy way to get around the city. If you'd prefer added privacy and to be dropped off at your door, you can get a taxi from the airport for around $25-30 (€20-25). They're available from a taxi rank right outside the terminal.

Among airlines operating Shannon to Boston flights:

• Aer Lingus: offers free seat selection
• JetBlue: offers free seat selection
• American Airlines: offers free seat selection

Extra legroom and free seat selection availability depends on fare class and route.

Only Aer Lingus operates flights between Shannon and Boston.

Flights from Shannon to Boston usually depart from Shannon (SNN) and arrive at Boston Logan Intl (BOS).

Here are some options for this route, based on selected ticket types and cabin classes:

• Aer Lingus: a cabin bag and a checked bag in Economy Class
• Iberia: a cabin bag and a checked bag in Economy Class
• JetBlue: a cabin bag and a checked bag in Economy Class

Bag allowance can vary by ticket type, cabin class, route and airline, so travelers should check the fare details before booking.

Two cabin classes are available on flights from Shannon to Boston:

• Economy Class
• Business Class

On this route, layover flights are cheaper than nonstop options on average. Layover fares average $553 round-trip via New York John F Kennedy Intl (JFK), compared to $716 for nonstop.

There is no standard. Checked-bag policies vary by airline on this route. Most carriers charge $27–$100 for the first checked bag in economy. Premium fares and elite-status bookings typically include a free checked bag.

The Airbus A321neo family is used most often on this route, operated mainly by Aer Lingus and Iberia. Other aircraft seen on the route include Airbus A321-100/200 variants.

One-stop flights from Shannon to Boston most commonly connect through:

• New York John F Kennedy Intl (JFK) - 38% of one-stop connections
• Newark (EWR) - 33% of one-stop connections
• London Heathrow (LHR) - 29% of one-stop connections

New York John F Kennedy Intl (JFK) handles the largest share of one-stop connections on this route.

Yes. Being flexible with your travel dates can save you up to 39% on the Shannon to Boston route. Monday is the cheapest departure day at $652 round-trip on average, while Sunday is the most expensive at $1,057, a difference of $405. KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

A flight is considered delayed when it departs 15 minutes or more after its scheduled time. This is the standard used by the US Department of Transportation and most airline industry reporting. On the Shannon to Boston route, 2% of flights were delayed in the past 3 months, with delays averaging 4 hours 10 minutes.

Afternoon is the busiest departure period on Shannon to Boston flights, with 100% of flights leaving in that window. Morning departures account for 0%, evening flights for 0%, and night flights for 0%.

Some of the most popular sights in Boston are Fenway Park, TD Garden and South Station. These are among the most viewed places in Boston on KAYAK.

These are the earliest and latest flight times available from Shannon to Boston:

• Earliest: departs at 1:45 pm and lands at 8:51 pm
• Latest: departs at 2:00 pm and lands at 9:06 pm.

The flight takes about 7h 06m.

Last-minute fares on this route - booked within 2 weeks of departure - run 28% above the route average of $713. Book 8 weeks before departure for the lowest fares.

A nonstop flight from Shannon to Boston takes 7h 06m, covering 2,885 miles.

Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.

One-way fares from Shannon to Boston are currently lower than usual. Average one-way flight prices are about $380, which is 38% below the typical average for this route.

Aer Lingus is the only airline operating Shannon to Boston flights. 98% of its flights are on time.

Morning flights have the fewest delays on this route. Delays tend to pile up throughout the day as one late flight pushes the next, so earlier departures are usually more reliable.

Flying via Newark (EWR) gives the shortest average 1-stop total travel time at 10h 05m, compared with 13h 23m via New York John F Kennedy Intl (JFK) and 13h 36m via London Heathrow (LHR).

Boston is 5 hours behind Shannon (Eastern Time vs Irish Time). Plan for the time shift when scheduling connections or first-day activities.

Boston Logan Intl Airport (BOS) hosts 5 major car rental companies, with daily rates starting from around $23 for economy cars. Top options include:
• Dollar
• Hertz
• Budget
• Thrifty
• Sixt

Round-trip flights from Shannon to Boston range from $582 to $883, with an average of $713 over the past 12 months. Anything below $582 counts as a good deal.