BOS - DUB

€222 Find Cheap Flights from Boston to Dublin – Compare and Save

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Everything you should know

Cheapest return flight
€393
Typical prices: €397-€694
Icelandair
Fri 5/1Fri 19/1
BOS - DUB • 1 stop
Cheapest direct flights
€410
Typical prices: €409-€711
Aer Lingus
Mon 26/11Fri 7/12
BOS - DUB • Direct
Direct flights
You can fly direct with Aer Lingus and Delta. Average duration is 6h 03m
Direct flights
+1
Direct flights
+1
Avoid delays
Most punctual • 95% on-time
Best time • Fewest delays
Insights
Insights
When to book
in advance
Our data shows that travellers who book at least 24 weeks in advance save around 20% compared to booking last minute.
Insights
Insights
When to travel
Cheapest • 33% price drop
Most popular
Good to know
+1
Good to know
+1
Top stopover airports
Cheapest • Avg €379 (return)
Shortest trip • 10h 40m (one-way)
Insights
Insights
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We hope you enjoy your trip to Dublin!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Boston to Dublin (BOS-DUB)

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

Recent return flight deals from Boston to Dublin

Sun, 8 Nov - Fri, 20 Nov
Icelandair Logo
19:50 - 10:15BOS  Boston Logan Intl-DUB Dublin
9h 25m1 stop Reykjavik Keflavik Intl
Icelandair Logo
11:30 - 17:50DUB  Dublin-BOS Boston Logan Intl
11h 20m1 stop Reykjavik Keflavik Intl
€393Icelandair
Mon, 9 Nov - Fri, 20 Nov
Icelandair Logo
19:50 - 10:15BOS  Boston Logan Intl-DUB Dublin
9h 25m1 stop Reykjavik Keflavik Intl
Icelandair Logo
11:30 - 17:50DUB  Dublin-BOS Boston Logan Intl
11h 20m1 stop Reykjavik Keflavik Intl
€393Icelandair
Tue, 5 Jan - Tue, 19 Jan
Icelandair Logo
19:50 - 10:15BOS  Boston Logan Intl-DUB Dublin
9h 25m1 stop Reykjavik Keflavik Intl
Icelandair Logo
11:30 - 17:50DUB  Dublin-BOS Boston Logan Intl
11h 20m1 stop Reykjavik Keflavik Intl
€393Icelandair
Tue, 1 Dec - Thu, 10 Dec
Icelandair Logo
19:50 - 10:15BOS  Boston Logan Intl-DUB Dublin
9h 25m1 stop Reykjavik Keflavik Intl
Icelandair Logo
11:30 - 17:50DUB  Dublin-BOS Boston Logan Intl
11h 20m1 stop Reykjavik Keflavik Intl
€394Icelandair
Mon, 30 Nov - Tue, 8 Dec
Icelandair Logo
19:50 - 10:15BOS  Boston Logan Intl-DUB Dublin
9h 25m1 stop Reykjavik Keflavik Intl
Icelandair Logo
11:30 - 17:50DUB  Dublin-BOS Boston Logan Intl
11h 20m1 stop Reykjavik Keflavik Intl
€394Icelandair
Wed, 9 Dec - Wed, 16 Dec
Icelandair Logo
19:50 - 10:15BOS  Boston Logan Intl-DUB Dublin
9h 25m1 stop Reykjavik Keflavik Intl
Icelandair Logo
11:30 - 17:50DUB  Dublin-BOS Boston Logan Intl
11h 20m1 stop Reykjavik Keflavik Intl
€394Icelandair
Wed, 9 Dec - Tue, 15 Dec
Icelandair Logo
19:50 - 10:15BOS  Boston Logan Intl-DUB Dublin
9h 25m1 stop Reykjavik Keflavik Intl
Icelandair Logo
11:30 - 17:50DUB  Dublin-BOS Boston Logan Intl
11h 20m1 stop Reykjavik Keflavik Intl
€394Icelandair
Sat, 5 Dec - Fri, 11 Dec
Icelandair Logo
19:50 - 10:15BOS  Boston Logan Intl-DUB Dublin
9h 25m1 stop Reykjavik Keflavik Intl
Icelandair Logo
11:30 - 17:50DUB  Dublin-BOS Boston Logan Intl
11h 20m1 stop Reykjavik Keflavik Intl
€396Icelandair
Sat, 17 Apr - Sat, 24 Apr
JetBlue Logo
21:05 - 08:20BOS  Boston Logan Intl-DUB Dublin
6h 15mdirect
JetBlue Logo
10:40 - 12:45DUB  Dublin-BOS Boston Logan Intl
7h 05mdirect
€568JetBlue
Mon, 19 Apr - Tue, 20 Apr
JetBlue Logo
21:05 - 08:20BOS  Boston Logan Intl-DUB Dublin
6h 15mdirect
JetBlue Logo
10:40 - 12:45DUB  Dublin-BOS Boston Logan Intl
7h 05mdirect
€608JetBlue
Booking Insights

Price, demand, and travel trends for Boston to Dublin flights

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

How much is a return flight from Boston to Dublin?

Return flights from Boston to Dublin typically range from €397 to €694. The lowest price found in the past 5 days was €393 on Icelandair.

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

Based on deals KAYAK users found in the last 12 months, Wednesday is the cheapest day of the week to fly from Boston to Dublin. It’s 2% cheaper than the average day, while Friday is the most expensive, with prices 1% higher.

What is the cheapest month to fly from Boston to Dublin?

•January is the cheapest month to fly from Boston to Dublin at €371 return.
•June (€696) and July (€618) are the most expensive months.
•The price difference between flying in the cheapest and most expensive months is 87% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.

When are flights from Boston to Dublin the cheapest?

Flights from Boston to Dublin are cheapest 24 weeks before departure. Booking in this window typically costs about 20% less than the average last-minute fare (within 2 weeks of the flight), based on KAYAK data.

Key details for Boston to Dublin flights

Low season

February

Cheapest flight

€224
Beat the crowds with an average 42% drop in traveller numbers.
The most popular month to fly with an average 33% increase in traveller numbers.
One-way flight from Boston to Dublin

When to book flights from Boston to Dublin

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

Flights from Boston to Dublin: the best tips from KAYAK users' own experiences

Insights shared by verified travellers who flew the route from Boston to Dublin 
LisaFlew with Aer Lingus-Dec 2025
Look at Jet Blue and Delta. May be a bit more expensive but keep an eye out for fare reductions and book early.
Verified travelerFlew with Aer Lingus-Jul 2025
Whatever airline you choose, spring for a class with more leg and overall body room than economy (or whatever the cheapest class is called).
BarbaraFlew with Aer Lingus-May 2024
Pack what you need in a carryon since it is likely you'll arrive without luggage.

Your Boston to Dublin 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 Dublin?

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

    • Earliest: departs at 17:15 and lands at 23:18
    • Latest: departs at 23:45 and lands at 05:48.

    The flight takes about 6h 03m.

  • Which cabin classes can I book on flights from Boston to Dublin?

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

    • Economy class
    • Business Class

  • How long is a flight from Boston to Dublin?

    A direct flight from Boston to Dublin takes 6h 03m, covering 7,726 km.

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

    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 Dublin flight?

    Return flights from Boston to Dublin range from €397 to €694, with an average of €557 over the past 12 months. Anything below €397 counts as a good deal.

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

    Last-minute fares on this route (booked within two weeks of departure) run 10% above the €557 route average. Book 24 weeks before departure for the lowest fares.

  • How much can I save by having a stopover when flying from Boston to Dublin?

    On this route, stopover flights are cheaper than direct options on average. Stopover fares average €379 return via Toronto Pearson Intl (YYZ), compared with €568 for direct.

  • How does on-time performance compare across airlines flying from Boston to Dublin?

    Aer Lingus is slightly above the route average for timely arrivals, while Delta has a lower on-time arrival rate. On-time arrival rates on Boston to Dublin flights are:

    • Aer Lingus: 95% on time
    • Delta: 88% on time
    • JetBlue: 83% on time

    On average, flights on this route are punctual 92% of the time.

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

    There is no standard. Checked bag policies vary by airline on this route. Most carriers charge €49–€89 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 Dublin?

    The Airbus A330-300 family is used most often on this route, operated mainly by Iberia and British Airways. Other aircraft seen on the route include Boeing 767-300 (winglets) variants.

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

    Evening is the busiest departure period on Boston to Dublin flights, with 50% leaving in that window. Night departures account for 50%, Morning flights for 0%, and Afternoon flights for 0%.

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

    Four airlines offer in-flight Wi-Fi on Boston to Dublin flights:

    • Aer Lingus
    • Delta
    • JetBlue
    • Air France

    Pricing varies by airline and fare class. Some plans are included with the ticket or loyalty programme, while others are paid add-ons priced by flight length.

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

    One-way fares from Boston to Dublin are currently lower than usual. Average one-way flight prices are about €262, which is 30% below the typical average for this route.

  • Which car hire options are available at Dublin Airport (DUB)?

    Dublin Airport (DUB) hosts 5 major car hire companies, with daily rates starting from around €3 for economy cars. Top options include:

    • Budget
    • Sixt
    • Easirent
    • Europcar
    • Thrifty

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

    Flights from Boston to Dublin usually depart from Boston Logan Intl (BOS) and arrive at Dublin (DUB).

  • What time of day has the fewest delays on flights from Boston to Dublin?

    Evening flights have the fewest delays on this route, while night departures tend to have the most.

  • At what point is a flight considered delayed on the route from Boston to Dublin?

    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 Boston to Dublin route, 8% of flights were delayed in the past three months, with delays averaging 2h 32m.

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

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

    • Philadelphia (PHL) – 35% of one-stop connections
    • Toronto Pearson Intl (YYZ) – 23% of one-stop connections
    • Reykjavik Keflavik Intl (KEF) – 22% of one-stop connections
    • London Heathrow (LHR) – 9% of one-stop connections

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

    Yes. Flexible dates can save you up to 4% on flights from Boston to Dublin. Wednesday is the cheapest departure day at €550 return on average, while Friday is the most expensive at €568, a difference of €18.

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

  • Which airlines fly from Boston to Dublin?

    2 airlines operate flights between Boston and Dublin. The airlines offering direct flights on this route include:

    • Aer Lingus
    • Delta

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

    Flying via Philadelphia (PHL) gives the shortest average 1-stop total travel time of 10h 40m, compared to 10h 41m via Washington, D.C. Dulles Intl (IAD) and 10h 44m via Reykjavik Keflavik Intl (KEF).

  • What is the time difference between Boston and Dublin?

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

  • What popular places can I visit in Dublin?

    Some of the most popular sights in Dublin are Bord Gáis Energy Theatre, 3Olympia Theatre, and St. Stephen's Green. These are among the most viewed places in Dublin on KAYAK.

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

    Among airlines operating Boston to Dublin flights:

    • Aer Lingus: offers extra legroom; offers free seat selection
    • Delta: offers extra legroom; offers free seat selection
    • JetBlue: offers extra legroom; offers free seat selection
    • KLM: offers extra legroom; offers free seat selection
    • American Airlines: 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 Dublin 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
    • Delta: a cabin bag and a checked bag in Economy class
    • JetBlue: a cabin bag and a checked bag in Economy class

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

  • Does Dublin Airport have an on-site hotel?

    While there are no hotels located on-site at Dublin Airport, there are hotels a short drive away. The Maldron Hotel Dublin Airport is a 3-minute walk from both terminals. The hotel offers a complimentary 24h airport shuttle for guests, while the Radisson Blu Dublin Airport has a free shuttle that runs every 15min. The Radisson Blu is a 5-minute walk from the airport.

  • What are the options for going from Dublin Airport to the Dublin city center?

    If you choose to drive from Dublin Airport to downtown Dublin, it will normally take you around 20min total. You can also use public transit, like bus 41, which will take you to the city center in around 20-25min. A bus ticket will cost you approximately €1.55 ($1.85).

  • Are there any lounges at Boston Logan International Airport?

    The American Airlines Admirals Club is in Terminal B, and BOS's The Lounge can be found in Terminal C. Passengers can also opt for The Club in Terminal E or one of the Delta Sky Club locations, which are located in each terminal.

  • Does Boston Logan International Airport allow traveling with pets?

    Traveling with your pet is not frowned upon at Boston Logan Airport. Terminal E has its own pet relief area, which is equipped with benches where pet owners can sit and relax, trash cans, and free plastic bags for cleaning up after your furry friend. There also are outdoor pet relief areas in front of each Arrivals terminal.

Your guide to booking Boston to Dublin 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 Wednesday departure and avoid flying on Friday. On this route, Wednesday flights average €550, about €18 less than Friday fares (3% savings) based on the last 12 months.
  • For the best chance at a low fare, aim to book around 24 weeks before you fly. On this route, that window historically saves about 20% versus last-minute pricing (KAYAK booking data, last 12 months).
  • If you can choose when to travel, plan your Boston to Dublin trip for January. Fares historically average €371 return in that month – typically €325 less than the most expensive month, which is June (based on the last 12 months).
  • For the best chance of arriving on time, fly with Aer Lingus. Over the past three months, 95% of Aer Lingus flights from Boston to Dublin arrived on time, slightly above the route average of 92%. When flights on this route arrive late, they're delayed by an average of 2h 32m, so choosing an airline with strong on-time performance can make a difference if you're on a tight schedule.
  • If you have the time, taking a 1-stop flight through Toronto Pearson Intl Airport (YYZ) can be cheaper than flying direct. The cheapest stopover option averages €379 return on this route – about €189 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 Dublin Airport.

    • Clayton Hotel Dublin Airport
    • Maldron Hotel Dublin Airport
    • Metro Hotel Dublin Airport
  • If you’re traveling from Boston to Dublin, your plane will depart from Boston Logan International Airport (BOS), one of the busiest airports in the United States. It’s also a hub for the airline providers Delta Air Lines and JetBlue, so you’ll find many trips between these two cities on these airlines.
  • It’s possible to find nonstop flights from Boston to Dublin; nonstop flights are most commonly provided by companies like Aer Lingus and United Airlines. You’ll also find flight journeys that require one or two layovers, and these may be provided by airlines such as Delta or Lufthansa.
  • If you need to go to Boston Logan International Airport (BOS) from downtown Boston, you’ll have a few transportation options. For example, you can choose to drive, which will normally take you around 10min, depending on traffic and weather conditions. If you take local bus 117, the trip will last closer to 30min. A single bus ticket will cost you approximately $2.75.
  • Are you interested in storing your luggage at Dublin Airport (DUB) once you’ve landed? Excess Baggage Company has a location in the main concourse of Terminal 1; you can pay either by the hour, per day, or per week.
  • Those who are traveling with small children may be pleased to know that the Boston Logan Airport offers a few special amenities for families. Each terminal has at least one nursing suite. These contain changing tables, comfortable seating, sinks, and outlets. There are also children’s play areas in Terminals A and C, where your little ones can burn off some energy before you board the plane.

Prefer to fly direct from Boston Logan Intl to Dublin?

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

Direct departures

Boston Logan Intl to Dublin

Monday

Aer Lingus

Aer Lingus

Tuesday

Aer Lingus,Delta

Aer Lingus,Delta

Wednesday

Aer Lingus

Aer Lingus

Thursday

Aer Lingus,Delta

Aer Lingus,Delta

Friday

Aer Lingus

Aer Lingus

Saturday

Aer Lingus

Aer Lingus

Sunday

Aer Lingus,Delta

Aer Lingus,Delta

See more direct flights

Direct returns

Dublin to Boston Logan Intl

Monday

Aer Lingus,Delta

Aer Lingus,Delta

Tuesday

Aer Lingus

Aer Lingus

Wednesday

Aer Lingus,Delta

Aer Lingus,Delta

Thursday

Aer Lingus

Aer Lingus

Friday

Aer Lingus,Delta

Aer Lingus,Delta

Saturday

Aer Lingus

Aer Lingus

Sunday

Aer Lingus

Aer Lingus

See more direct flights

More options for your flight from Boston to Dublin

Complete your trip to Dublin with a hotel stay or car hire