$325 Find Cheap Flights from Massachusetts to Northern Ireland

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Good to know

Low seasonJanuary
High seasonJuly
Cheapest flight$325
Best time to beat the crowds but there is an average 11% increase in price.
Most popular time to fly with an average 35% increase in price.
Flight from Boston to Belfast Intl Airport

FAQs for booking flights from Massachusetts to Northern Ireland

  • How does KAYAK find such low prices on flights from Massachusetts to Northern Ireland?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Massachusetts to Northern Ireland.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Massachusetts to Northern Ireland?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Massachusetts to Northern Ireland is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Massachusetts to Northern Ireland?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly from Massachusetts to Northern Ireland with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Massachusetts to Northern Ireland?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from Massachusetts to Northern Ireland up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • What is the cheapest day to fly to Northern Ireland?

    Based on KAYAK data, the cheapest day to fly to Northern Ireland is Wednesday where round-trip tickets can be as cheap as $641. On the other hand, the most expensive day to fly is Saturday, where round-trip prices are $968 on average.

  • What is the cheapest time of day to fly to Northern Ireland?

    The cheapest time of day to fly to Northern Ireland is generally in the evening, when round-trip flights cost $636 on average. Morning departures are around 100% cheaper than evening flights, on average. The most expensive time of day to fly to Northern Ireland is generally at night, which is peak travel time and where the average cost of a ticket is $685.

  • What is the cheapest month to fly from Massachusetts to Northern Ireland?

    The cheapest month for flights from Massachusetts to Northern Ireland is February, when tickets cost $589 (return) on average. On the other hand, the most expensive months are July and December, when the average cost of round-trip tickets is $1,016 and $955 respectively.

  • How long is the flight to Northern Ireland?

    An average nonstop flight from Massachusetts to Northern Ireland takes 20h 55m, covering a distance of 3002 miles. The shortest route is Boston (BOS) to Belfast Intl Airport (BFS) with an average flight time of 10h 10m.

  • What are the most popular destinations in Northern Ireland?

    Based on KAYAK flight searches, the most popular destination is Belfast (99% of total searches to Northern Ireland). The next most popular destination is Campbeltown (1%).

Top airlines flying from Massachusetts to Northern Ireland

Need help choosing which airline to fly with from Massachusetts to Northern Ireland? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.2
American AirlinesOverall score based on 10000 reviews
7.2Comfort
7.5Boarding
6.5Food
8.0Crew
6.9Entertainment
Airline reviews

British Airways staff are very polite and willing to help.

10.0 ExcellentAnonymous, Apr 2025SFO - LHR
Read more American Airlines reviews

British Airways staff are very polite and willing to help.

Everything was fine. Flight boarded and departed on time. Seating was spacious enough for my carryon to fit under the seat in front of me. No complaints at all. Flight even arrived early.

This particular flight wasn't very full at the back, so there were three seats available for spreading out and getting relatively comfortable

The flight got canceled last minute with no explanation or refund, I had to rebook for a different day

from Boston to Washington was good but return to Boston was terrible, Gate was changed and plane was so uncomfortable, I thought it would crash 🙈🤦‍♀️ also when I showed my bording pass they didn't know where to send me and finally gave me direction and at the plane they said to find free seat somewhere😬🤦‍♀️🫣

Overall flight was as expected. It would have been better with a couple options for snack instead of only one item and if there was a TV or music as option. But overall satisfied.

There were several issues with this flight. I have flown quite often internationally and I was surprised by the lack of presence of attendants other than meal and drink times. The food was not best but I feel that is the norm. We also had to get off the plane once in London via stairs and bus to the terminal. Anyone who had another flight had to then get another bus to another terminal. This causes me to miss my flight and have to rebook.

The boarding process was a nightmare and though we were traveling business class, we were in Group 2 and the organization was terrible. The Business Class on this flight was crowded and did not feel clean and nice. Overall, I would not travel Business again on the American Airline flight through British Airways Not nearly special enough for the considerable cost .

Not too impressed with them to be honest. They had forgotten my gf meal, despite the fact that the app had notified me that it was sorted. Apparently there is a ‘glitch’ in the system, according to one of the stewardesses, and has been for a while. Also the legroom in economy is way too small (and I’m a slight person) and are very uncomfortable. An extra Internal flight I booked via the app, had not even given me the option to order a meal, so was unaware of that and left without food on a 9 hr. flight !! Don’t think I’ll use AA again after this.

AA is fabulous. However , Iberia cancelled our Boston - Barcelona flight the morning of the flight - 9/16/24. This was almost a week ago and we have still heard nothing from Iberia/Vueling. Found out from a kayak email that morning that the flight was cancelled. Iberia Customer service reps wouldn’t help us and said to call Vueling. No one answers phone at Vueling. Terrible wild goose chase on DAY OF TRAVEL. AA came to our rescue.

The flight from Seattle was delayed, which made me miss my connection to Florence. I was re-booked NINE HOURS LATER!!! That’s basically a vacation day lost. British Airways needs to partner with other airlines when possible to get a more realistic travel time, if delays occur. I realize there aren’t many flights to Florence from London, so I would book differently were I to return. The actual flight from Seattle was very comfortable and the crew was great, no faults there. I enjoy British Airways, this was an anomaly.

The crew could not have been more helpful, my meal was excellent, I slept peacefully until right before landing, and the BA lounge was a godsend. The only negative I encountered was the coffee both on the plane and in the lounge. Not to my taste but that’s a personal preference.

I don’t understand why a reputable airline like BA would delegate their London flights to AA. Makes no sense to me, as most domestic carriers do such a poor job these days. Terminal 3 at LHR is a total dump

Cancelled flight minutes before boarding. Rescheduled flight was two days later

The flight attendants were EXTREMELY personable and appreciated the service, lights going off after dinner (probably the norm, but I haven’t flown evening overnight flights in a while). Thank you!

Business class seats were very dated on my plane. Very little storage, charging ports were not easily accessible, tv screen kept flopping away. Vegetarian food was disappointing: hardly any protein and severely under-seasoned. Crew was lovely.

The food was ok, but not great. They delayed boarding in Portland and did not enforce group boarding. But the crew was excellent, went above and beyond.

The food was pathetic. There wasn't much leg room and recline space for such a long flight. No tea/ coffee for a 2-3 hour connecting flight without purchasing! Really!?

Service was very good. Because I use a cane, I was allowed to use Priority Boarding. Biggest problem was extremely limited leg room in Economy class seats. For airplane food, it was alright.

Was late but that airport/storm fault. Flight was full but comfortable. Food quite nice. Unfortunate that I had a rather miserable attendant, others were much friendlier

Book cheap flights from Massachusetts to Northern Ireland

Recent round-trip flight deals

9/15Mon
1 stopIberia
16h 50mBOS-BHD
9/24Wed
1 stopIberia
15h 20mBHD-BOS
$571
9/8Mon
1 stop
12h 40mBOS-BHD
9/16Tue
1 stop
23h 50mBHD-BOS
$577
8/27Wed
1 stopAmerican Airlines
12h 40mBOS-BHD
9/3Wed
1 stopAmerican Airlines
11h 40mBHD-BOS
$587
8/27Wed
1 stopAmerican Airlines
11h 10mBOS-BHD
9/3Wed
2 stopsAmerican Airlines
15h 11mBHD-BOS
$597
8/27Wed
2 stopsBritish Airways
14h 31mBOS-BHD
9/3Wed
2 stopsBritish Airways
18h 00mBHD-BOS
$615
8/27Wed
2 stopsBritish Airways
18h 01mBOS-BHD
9/3Wed
2 stopsBritish Airways
27h 55mBHD-BOS
$625
6/1Sun
2 stopsDelta
22h 50mBOS-BHD
6/8Sun
2 stopsDelta
19h 34mBHD-BOS
$897
6/1Sun
2 stopsDelta
22h 56mBOS-BHD
6/8Sun
2 stopsDelta
19h 34mBHD-BOS
$898
7/3Thu
2 stopsAer Lingus
15h 15mBOS-BHD
7/6Sun
2 stopsAer Lingus
19h 07mBHD-BOS
$1,170
7/15Tue
2 stopsAer Lingus
14h 20mBOS-BHD
7/18Fri
2 stopsAer Lingus
17h 00mBHD-BOS
$1,343

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Recent one-way flight deals

5/14Wed
2 stops
15h 15mBOS-BFS
$325
5/14Wed
2 stops
14h 25mBOS-BHD
$334
5/14Wed
3 stops
18h 20mBOS-BFS
$381
8/8Fri
3 stops
44h 50mBDL-BFS
$382
5/14Wed
3 stops
14h 25mBOS-BHD
$389
5/14Wed
1 stopIberia
11h 15mBOS-BHD
$435
8/8Fri
2 stopsDelta
22h 55mBDL-BHD
$510
6/30Mon
1 stopAmerican Airlines
11h 45mBOS-BHD
$584
6/30Mon
1 stopBritish Airways
12h 15mBOS-BHD
$594
5/31Sat
1 stopBritish Airways
9h 30mBOS-BHD
$600

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Last minute flights from Massachusetts to Northern Ireland

Last minute flight, train and bus deals

5/5Mon
multi-stop
13h 35mBOS-BFS
5/13Tue
multi-stop
16h 05mBFS-BOS
$568
5/5Mon
multi-stopAmerican Airlines
11h 50mBOS-BHD
5/13Tue
multi-stopAmerican Airlines
20h 55mBHD-BOS
$669
5/5Mon
multi-stopAmerican Airlines
11h 50mBOS-BHD
5/13Tue
multi-stopAmerican Airlines
15h 57mBHD-BOS
$679
5/5Mon
multi-stopDelta
23h 05mBOS-BHD
5/13Tue
multi-stopDelta
18h 15mBHD-BOS
$891

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Everything you need to know for your flight to Northern Ireland

Cabin class types available on flights to Massachusetts

Cabin classes available on flights to Massachusetts. Prices are the lowest found on KAYAK over the last 7 days. Price and availability is not guaranteed.

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