BOS - SNN

$271 Find Cheap Flights from Boston to Shannon - Compare and Save

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Everything you should know

Cheapest round-trip
$535
Typical prices: $502-$846
Multiple Airlines
Sun 1/21Thu 1/25
BOS - SNN • 2 stops
Cheapest non-stop
$673
Typical prices: $493-$851
Aer Lingus
Sat 4/21Sat 5/12
BOS - SNN • Non-stop
Nonstop flights
You can fly direct with Aer Lingus. Average duration is 6h
Direct flights
+1
Direct flights
+1
When to book
in advance
Our data shows that travelers who book at least 21 weeks in advance save around 28% compared to booking last minute.
Insights
Insights
When to travel
Cheapest • 29% price drop
Most popular
Good to know
+1
Good to know
+1
Top layover airports
Cheapest • Avg $538 (round-trip)
Shortest trip • 9h 54m (one-way)
Insights
Insights
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We hope you love your trip to Shannon!
Flight Deals
Booking Insights
Expert advice
Flight Deals

Cheap Flights from Boston to Shannon (BOS-SNN)

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Boston to Shannon

Thu, Jan 21 - Mon, Jan 25
Multiple Airlines Logo
6:00 pm - 3:00 pmBOS  Boston Logan Intl-SNN Shannon
16h 00m2 stops Lisbon Humberto Delgado Madrid Barajas
Multiple Airlines Logo
5:45 am - 7:55 pmSNN  Shannon-BOS Boston Logan Intl
19h 10m2 stops Madrid Barajas Lisbon Humberto Delgado
$535Multiple Airlines
Thu, Dec 3 - Mon, Dec 7
Multiple Airlines Logo
6:00 pm - 3:00 pmBOS  Boston Logan Intl-SNN Shannon
16h 00m2 stops Lisbon Humberto Delgado Madrid Barajas
Multiple Airlines Logo
5:45 am - 7:55 pmSNN  Shannon-BOS Boston Logan Intl
19h 10m2 stops Madrid Barajas Lisbon Humberto Delgado
$548Multiple Airlines
Sun, Apr 18 - Thu, Apr 22
United Airlines Logo
11:30 am - 10:15 amBOS  Boston Logan Intl-SNN Shannon
17h 45m1 stop Newark
United Airlines Logo
12:30 pm - 5:25 pmSNN  Shannon-BOS Boston Logan Intl
9h 55m1 stop Newark
$662United Airlines
Tue, Apr 6 - Sun, Apr 11
United Airlines Logo
6:00 am - 10:15 amBOS  Boston Logan Intl-SNN Shannon
23h 15m1 stop Newark
United Airlines Logo
12:30 pm - 11:17 pmSNN  Shannon-BOS Boston Logan Intl
15h 47m1 stop Newark
$663United Airlines
Wed, Apr 21 - Wed, May 12
Aer Lingus Logo
6:30 pm - 5:25 amBOS  Boston Logan Intl-SNN Shannon
5h 55mnonstop
Aer Lingus Logo
1:45 pm - 3:40 pmSNN  Shannon-BOS Boston Logan Intl
6h 55mnonstop
$673Aer Lingus
Thu, Dec 31 - Sat, Jan 9
Aer Lingus Logo
6:50 pm - 5:50 amBOS  Boston Logan Intl-SNN Shannon
6h 00mnonstop
Aer Lingus Logo
2:00 pm - 4:15 pmSNN  Shannon-BOS Boston Logan Intl
7h 15mnonstop
$673Aer Lingus
Sat, Feb 27 - Tue, Mar 2
Iberia Logo
6:50 pm - 5:50 amBOS  Boston Logan Intl-SNN Shannon
6h 00mnonstop
Iberia Logo
2:00 pm - 4:15 pmSNN  Shannon-BOS Boston Logan Intl
7h 15mnonstop
$869Iberia
Fri, Apr 2 - Fri, Apr 9
Iberia Logo
6:30 pm - 5:25 amBOS  Boston Logan Intl-SNN Shannon
5h 55mnonstop
Iberia Logo
1:45 pm - 3:40 pmSNN  Shannon-BOS Boston Logan Intl
6h 55mnonstop
$869Iberia
Fri, Apr 16 - Fri, Apr 30
American Airlines Logo
11:16 am - 6:00 amBOS  Boston Logan Intl-SNN Shannon
13h 44m1 stop New York John F Kennedy Intl
American Airlines Logo
1:45 pm - 3:40 pmSNN  Shannon-BOS Boston Logan Intl
6h 55mnonstop
$945American Airlines
Sat, Apr 17 - Sat, Apr 24
American Airlines Logo
6:30 pm - 5:25 amBOS  Boston Logan Intl-SNN Shannon
5h 55mnonstop
American Airlines Logo
2:40 pm - 11:52 pmSNN  Shannon-BOS Boston Logan Intl
14h 12m1 stop New York John F Kennedy Intl
$951American Airlines
Booking Insights

Price, demand and travel trends for Boston to Shannon flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights with more confidence.

What's the cheapest day of the week to fly from Boston to Shannon?

Based on deals KAYAK users found in the last 12 months, Friday is the cheapest day of the week to fly from Boston to Shannon. It’s 4% cheaper than the average day, while Wednesday is the most expensive, with prices 2% higher.

What’s the cheapest month to fly from Boston to Shannon?

•February is the cheapest month to fly from Boston to Shannon at $477 round-trip.
•December ($929) and July ($744) are the most expensive months.
•The price difference between flying in the cheapest and most expensive months is 94% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.

When are flights from Boston to Shannon the cheapest?

Flights from Boston to Shannon are cheapest 21 weeks before departure. Booking in this window typically costs about 28% less than the average last-minute fare (within 2 weeks of the flight), based on KAYAK data.

Expert advice

Expert advice for your flight from Boston to Shannon

 
KAYAK teamed up with top travel experts to share the best tips for your journey.
Our travel experts
Marisa Garcia

Marisa Garcia

Expert on Aer Lingus

Marisa knows planes inside and out, spending 16 years working on aircraft in hangars at airports around the world. She is an aviation industry expert, specialized in airline interiors and regulations. Ten years ago, she pivoted to journalism. She shares her insights in leading aviation, travel, and business publications and on her site FlightChic.

Harriet Baskas

Harriet Baskas

Expert on American Airlines and JetBlue

Harriet is an award-winning journalist who is happiest in an airport or an unusual museum. Her stories about airports, air travel, and the business of travel have appeared on NBC News, CNBC, USA TODAY, The Points Guy and other outlets. She is the creator of the StuckatTheAirport.com blog and the author of nine books. When not out on the road or exploring the latest airport amenities, she’s home in Seattle getting ready for the next adventure.

Key details for Boston to Shannon flights

Low season

January

Cheapest flight

$271
Beat the crowds with an average 40% drop in travelers.
The most popular month to fly with an average 32% increase in travelers.
One-way flight from Boston to Shannon

When to book flights from Boston to Shannon

Are your dates flexible? Find out the best times to travel from Boston to Shannon based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price

Your Boston to Shannon flight questions, answered

Find helpful answers about this route, including flight times, airports, airlines and booking tips.

  • What are the earliest and latest flights from Boston to Shannon?

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

    • Earliest: departs at 6:50 pm and lands at 12:50 am
    • Latest: departs at 7:50 pm and lands at 1:50 am.

    The flight takes about 6h.

  • What cabin classes can I book on flights from Boston to Shannon?

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

    • Economy Class
    • Premium Economy Class
    • Business Class
    • First Class

    Prices vary by airline.

  • How long is a flight from Boston to Shannon?

    A nonstop flight from Boston to Shannon takes 6h, covering 2,885 miles.

  • Do I need a passport to fly from Boston to Shannon?

    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.

  • How much should I expect to pay for a Boston to Shannon flight?

    Round-trip flights from Boston to Shannon range from $502 to $846, with an average of $669 over the past 12 months. Anything below $502 counts as a good deal.

  • How expensive are last-minute Boston to Shannon flights?

    Last-minute fares on this route (booked within two weeks of departure) run 19% above the $669 route average. Book 21 weeks before departure for the lowest fares.

  • How much can I save by taking a layover when flying from Boston to Shannon?

    On this route, layover flights are cheaper than nonstop options on average. Layover fares average $538 round-trip via London Heathrow (LHR), compared to $665 for nonstop.

  • What is the standard checked-bag allowance on flights from Boston to Shannon?

    There is no standard. Checked-bag policies vary by airline on this route. Most carriers charge $55–$100 for the first checked bag in economy. Premium fares and elite-status bookings typically include a free checked bag.

  • Which aircraft model is used most often on flights from Boston to Shannon?

    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.

  • How are flight departures from Boston to Shannon spread across the day?

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

  • Which airlines offer Wi-Fi on Boston to Shannon flights?

    JetBlue is the only airline on the Boston to Shannon route offering in-flight Wi-Fi. Pricing depends on fare class.

  • How are flight prices from Boston to Shannon looking right now?

    One-way fares from Boston to Shannon are currently lower than usual. Average one-way flight prices are about $377, which is 19% below the typical average for this route.

  • What car rental options are available at Shannon Airport (SNN)?

    Shannon Airport (SNN) hosts 5 major car rental companies, with daily rates averaging $33 for economy cars. Top options include:

    • Budget
    • Sixt
    • Europcar
    • Easirent
    • Thrifty

  • Which airports can I use when flying from Boston to Shannon?

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

  • Which airports do connecting flights from Boston to Shannon pass through?

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

    • Newark (EWR) - 49% of one-stop connections
    • New York John F Kennedy Intl (JFK) - 36% of one-stop connections
    • London Heathrow (LHR) - 11% of one-stop connections
    • Chicago O'Hare Intl (ORD) - 3% of one-stop connections

  • Can I save money by using flexible dates for flights from Boston to Shannon?

    Yes. Flexible dates can save you up to 6% on flights from Boston to Shannon. Friday is the cheapest departure day at $648 round-trip on average, while Wednesday is the most expensive at $686, a difference of $38.

    KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

  • What airlines fly from Boston to Shannon?

    Only Aer Lingus operates flights between Boston and Shannon.

  • How much time can I save by choosing a different layover airport from Boston to Shannon?

    Flying via Newark (EWR) gives the shortest average 1-stop total travel time at 9h 54m, compared with 10h 46m via New York John F Kennedy Intl (JFK) and 11h 38m via London Heathrow (LHR).

  • What is the time difference between Boston and Shannon?

    Shannon is 4 hours ahead of Boston (Irish Time vs Eastern Time). Plan for the time shift when scheduling connections or first-day activities.

  • Which airlines offer extra legroom and free seat selection on Boston to Shannon flights?

    Among airlines operating Boston to Shannon flights:

    • Aer Lingus: offers extra legroom; offers free seat selection
    • American Airlines: offers free seat selection
    • JetBlue: offers free seat selection

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

  • Which airlines include bags at no extra cost on Boston to Shannon flights?

    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
    • American Airlines: a cabin bag and a checked bag in Economy Class

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

  • Does BOS have a kid's play area?

    Yes. BOS has quality children's playing areas at Terminal B's B30 and Terminal C's Gate 25. The Kids' Port at Terminal C features vintage-style airplane replicas for kids to play on. It also features an airfield carpet and walls painted like clouds. At any of these play areas, your children can enjoy themselves as you wait for your flight.

  • Does BOS have an onsite hotel?

    The Hilton Boston Logan Airport is a hotel present at BOS. It boasts elegantly designed guest rooms connected to Boston Logan's terminals by an enclosed sky bridge and a complimentary round-the-clock shuttle service to all airline terminals. The other hotel located in the airport is the Hyatt Regency Boston Harbor. It features luxury guest accommodations, superb cuisine, and a waterfront location with views of the Boston cityscape.

  • What is the best way to get to BOS from downtown Boston?

    BOS is among the few major airports in the U.S. with convenient public transit options. The airport is connected to a subway, rapid service buses, and a water shuttle operated by MBTA. You can choose a taxi if you’d like to get to the airport quickly.

  • What services are available for nursing mothers at BOS?

    For breastfeeding and breast pumping mothers traveling, BOS has nursing pods located at Terminal B just next to Gate C8 and E1 as well as Terminal E next to Gate E9. At this airport, nursing bays are also available before and after security in Terminal A.

Your guide to booking Boston to Shannon flights

Get tips on when to book, when to fly and what to know before your trip.
  • If your dates are flexible, aim for a Friday departure and avoid flying on Wednesday. On this route, Friday flights average $648, about $38 less than Wednesday fares (6% savings) based on the last 12 months.
  • For the best chance at a low fare, aim to book around 21 weeks before you fly. On this route, that window historically saves about 28% versus last-minute pricing (KAYAK booking data, last 12 months).
  • If you can choose when to travel, plan your Boston to Shannon trip for February. Fares historically average $477 round-trip in that month - typically $452 less than the most expensive month, which is December (based on the last 12 months).
  • If you have the time, taking a 1-stop flight through London Heathrow Airport (LHR) can be cheaper than flying direct. The cheapest layover option averages $538 round-trip on this route - about $127 less than direct flights (based on the last 12 months).
  • If you're arriving late at night and need somewhere to stay, check out these hotels close to Shannon Airport.

    • Park Inn by Radisson Shannon Airport
    • Treacys Oakwood Hotel
    • Carrygerry Country House
  • When flying out of Boston Logan International Airport (BOS), you can use its parking options. BOS has parking lots in all its terminals. At this airport, you find a spot conveniently located minutes from your terminal. Whether you're looking for short-term, long-term, or extended-stay parking and economy or premium assured parking, Boston Logan International Airport (BOS) has got you covered.
  • In case you’ve got special needs or you’re traveling with someone with special needs, you can count on having a smooth time as (BOS) is fully ADA-compliant. All its terminals have wheelchairs and are fitted with ramps to enable ease of movement for people with limited mobility. All restrooms are accessible, and all elevators have been provided with emergency call buttons and Braille.
  • If you are traveling with a four-legged friend, BOS has several animal relief centers you can visit. There are pet relief centers outside every terminal on the arrivals level curb. There are also relief areas in Gate E7 in Terminal E, Gate C20 in Terminal C, and Gate B29 in Terminal B.
  • Upon arrival at Shannon Airport (SNN), make a stop at the Customs Halls to exchange some of your dollars for euros since, in Ireland, they use euros as opposed to dollars in the U.S. The Customs Halls are only open between 6:00 am – 2:00 pm Irish Standard Time.
  • SNN lies halfway between Limerick and Ennis. Once you arrive from your flight at this airport, you can board a bus to either. You can also board a taxi. If none of these appeals to you, you can rent a car from the airport’s car rental center located on the ground floor of the airport’s Terminal Building.

Prefer to fly direct from Boston to Shannon?

 
Find which airlines fly direct from Boston Logan Intl Airport to Shannon Airport, which days they fly and book direct flights.

Direct departures

Boston Logan Intl to Shannon

Monday

Aer Lingus

Aer Lingus

Tuesday

Aer Lingus

Aer Lingus

Wednesday

Aer Lingus

Aer Lingus

Thursday

Aer Lingus

Aer Lingus

Friday

Aer Lingus

Aer Lingus

Saturday

Aer Lingus

Aer Lingus

Sunday

Aer Lingus

Aer Lingus

See more direct flights

Direct returns

Shannon to Boston Logan Intl

Monday

Aer Lingus

Aer Lingus

Tuesday

Aer Lingus

Aer Lingus

Wednesday

Aer Lingus

Aer Lingus

Thursday

Aer Lingus

Aer Lingus

Friday

Aer Lingus

Aer Lingus

Saturday

Aer Lingus

Aer Lingus

Sunday

Aer Lingus

Aer Lingus

See more direct flights

More options for your flight from Boston to Shannon

Complete your trip to Shannon with a hotel stay or car rental