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Find cheap flights from Boston to Northern Ireland from $252

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Boston to Northern Ireland departing on 8/20. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
0 bags
Mon 7/1
Mon 7/8

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Best Northern Ireland Flight Deals

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours

Belfast
Belfast1 stop$595

Good to know

Low season

March

High season

August

Cheapest flight

$252
Best time to beat the crowds with an average 32% drop in price.
Most popular time to fly with an average 23% increase in price.
Flight from Boston to Belfast Intl Airport

FAQs - booking Northern Ireland flights

  • How does KAYAK find such low prices on flights from Boston 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 Boston to Northern Ireland.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Northern Ireland from Boston 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 Boston 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 to Northern Ireland with an airline and back to Boston with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Boston 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 to Northern Ireland from Boston up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top tips for finding cheap flights to Northern Ireland

  • Morning departure is around 31% cheaper than an evening flight, on average*.
*Average of the lowest prices shown in KAYAK’s search results for departures within the next 30 days

Top 5 airlines serving from Boston to Northern Ireland

 
Need help choosing which airline to fly with from Boston 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.
8.0
DeltaOverall score based on 10410 reviews
8.6Crew
8.2Boarding
8.0Entertainment
7.9Comfort
7.4Food
Airline reviews

I've flown many many times on Northwest and then Delta. The crew on this flight were absolutely the best I've had the pleasure of being looked after by.

10.0 ExcellentAnonymous, May 2024MSP - YVR
Read more about Delta reviews

I've flown many many times on Northwest and then Delta. The crew on this flight were absolutely the best I've had the pleasure of being looked after by.

Flew first class so everything was great. But maybe because the flights were red eye, no meals were served, just chips. I flew Alaska Air 1st class at 9PM (2 hour flight) and they served beef short rib sliders!

Had to change aircraft due to a faulty door. Surprisingly it only caused about an hour and a half of delay. Delta handled this situation as well as can be expected.

Awful. Flight was continuously getting delayed and gates kept changing without any reason. Flight was delayed for more then 3 hours

Paid premium for Delta only to be on safe but tired old 767 with ancient cabin in mediocre condition. Poor wifi and horrible inflight entertainment. Hardly a premium experience. Should have flown SW and had fun flight crew and no pretense

Our flight to Zurich was delayed by almost 3 hours, so we missed our next flight. There was no indication it would be delayed this much. We were told the gate had changed and then it apparently took over 2 hours to load the "catering" on the plane. We were not compensated in any way for the trouble.

Rated entertainment as Mediocre as there were major problems with the Infotainment system that took probably a half hour for them to fix.

Your crew could maybe answer the call bell at least one of the times I pressed it. I pressed it first time with 2.5 hours left in our flight bc my partner was hungry and wanted a sandwich. We finally got the sandwich with 40 mins left in the flight.

Half the bathrooms assigned to economy were out of action

Delta crushed it. Flight attendant in first was attentive and just never stopped. Honestly one of the best domestic flights I’ve been on.

Great, the flight attendants were very friendly and the food was also good.

The overall flight went well and the aircrew was pleasant.

Cathay Pacific seems to be an airline in trouble and on its way out. Lots of broken or poorly functioning things like entertainment screens, seats, and enough well trained staff to handle a full flight. Sad...

The flight crew was exceptionally good. Personal needs were well met. The food choices were very nice.

Excellent. Planes are a little older and could get some refurbishment, but besides that everything was excellent.

Crew experience was more transnational, seats were so close together (LtoR and FtoB) that it was difficult to enjoy much of anything. When the person in front leaned back, there is no space for me. Sadly it was a flight to be endured not experienced.

While I was in great pain, the seat was sufficiently comfortable to allow me to rest and not be in so much pain.

we were upgraded which was a blessing and tender mercy for us. I fell the day before and was in extreme pain from knee to shoulder. Sitting in a more comfortable seat during the flight was an unexpected blessing and experience.

Not impressed with check in desk staff at Vancouver airport. Not a professional mind service and not cared or tried to help. Don’t think I would fly with them again

Seats were very comfortable. Crew were excellent. Food very good.

Overall fine but both ways for this trip was delayed.

I had back trouble prior to my flight and everyone was great about helping me.

My tv was broken on the flight which is disappointing when you pay for a seat and expect a service

Always delays from Boston to Salt lake but this time was very long. Don’t understand while they board the passengers and then make them sit in the plane

The boarding and flight were ok, but there were several painful issues. The flight was 3:20 in the air and almost four hours door to door, but they only had snack packs on the plane. They really need to have food on longer flights or make it clear to everyone that they won’t have food. They also advertise free WiFi, but it did not work for 90% of this flight. Again, almost four hours door to door. If I had known I was flying spirit for JetBlue prices then I would have planned differently.

Service for food to our seat was a bit slow. Snack choices were just pretzels or baked chips. My seat cushion was not attached. Other than Barbie, video choice were not very good or current.

After we landed, we were held on the plane for 30 minutes. There was no one at the gate once we landed and we forced to sit on a plan that had already over an hour delayed.

almost 4 hour delay as they over booked and had to wait for 8-10 volunteers to agree to travel next day.

Old plane. No outlets for laptop or phone. Seats worn out. Area around seat dirty.

I loved the flight and the crew. It was comfortable and smooth.

Missed connection from Philadelphia to London because flight from DC was seriously delayed. Was re-routed the next day (had to pay for hotel) to Zurich and was given a main cabin middle seat while I had paid for premium. Great job AA!!!

Original flight delayed several times and finally canceled at 2:30 in the morning. Staff at the gate was not very helpful in resolving problems or communicating why there were delays. I spent 34 hours at the airport before I could leave, they couldn't book me on another early flight even after canceling my original flight. Next flight available after my original flight was canceled was 22 hours later. I will never fly American Airlines again.

very very tight seats unfriendly crew who do not seem to care about the comfort of their passengers and do not know how to smile poor ground staff support at LHR and PHX

So uncomfortable to sit in the tiny space on a long, international. Food was rough. Please, less white flour and processed food.

Worst experience flying American Airlines. I fly with them often, so I was super disappointed in the service I received at gate 30 in LGA on May 24, mid-day. The flight was delayed twice. I was patiently waiting in the American Airlines lounge when I received the notice on my app that the plane was boarding 45 minutes before its newly re-scheduled take off of 4 pm (from the orginal 1:45 pm then 3:00 pm). It took me 5 min to travel from the lounge to the gate and when I arrived there at 3:20 flight gate attendant told me the flight had closed and that they announced for passengers multiple times. I showed them the notification on my app and they were really rude and unempathetic. The person who rescheduled my flight at customer service wasn't any happier but was at least helpful in getting me on the next flight.

Our flight was delayed 2.5 hrs due to plane being too hot! After 1.5 hrs, airline decided to use another plane but had to wait for gate, baggage transfer & beverage transfer. Anyone could tell after first half hour that another plane was required and although did not affect us many would miss connecting flights at Heathrow. I have found the stewards are not the friendliest in the industry and the food is questionable, even as I like airplane food normally, the best of the 2 flights was the yogurt & granola for breakfast.

Terrible boarding , Business class seats are sub standard. As usual crew will miss your food too

Just get Economy Plus for international flights, so worth it the extra room, bigger seats…

The return trip was a customer service disaster. American Airlines needs an overhaul of how they treat their customers.

Was flying in premium eco and there were around 5-6 movies I wanted to watch and none of those could I play for some reasons. Not just me we checked w the person sitting next to me. Few of the movies were only playable :( Also that was not great that we couldn't upgrade to business however tried to, many times before the flight :(

The plane was not on time for boarding or departure or arrivals.

EVERYTHING WAS WONDERFUL HOSPITALITY THE HELP.THE SEATING FRIENDLY ALWAYS HAVE A GOOD RIDE NOT ONE BAD EXPERIENCE WITH THEM

This was the smoothest flight I have had in awhile. I was also offered an exit row seat for a great upgrade cost and was able to sleep almost thr whole flight due to comfort and a smooth flight. We left on time and arrived on time.

No food not even water offered unless you buy it and no usb in the seat but other than that everything was good

Because our flight from marsh Harbor to Fort Lauderdale was over three hours delayed it caused us to miss our flight in Fort Lauderdale. Because we missed that flight, it cost us nearly $100 apiece for four different travelers which totaled nearly $400. We are seeking a reimbursement for the flight that we missed in Fort Lauderdale Florida.

Flight expected to leave at 6:40 pm ended leaving at 8:00 am the following day. I slept in a cold airport. Never again Spirit for me…

Flight was cancelled just 6 days before. No more flights that day, and the following date was sold out. Had to obtain a refund and buy more expensive flights on another airline.

The flight was on time and nice as always for me with spirit but the cabin crew were not good. They left the lights on on a red eye for the entire flight.

This was the return leg of my journey with Spirit Airlines. Despite its reputation, I found no issues as it got me from point A to B safely and without delay, especially with no mechanical delays, which is fantastic in my book! The staff, from ground crew to cabin crew, were all pleasant and hassle-free. The flight was smooth from takeoff to landing. I have absolutely no complaints about this no-frills airline!

I got a one-way, last-minute nonstop flight from PDX to BWI for only $125. Yes, I got nicked $79 more for a checked suitcase and $89 more for the BIG SEAT option, but it was worth it, even with $4.50 for coffee and $10 for a snack (the latter no different than any other airline). The grand total was still less flying on any other airline.

Book cheap flights from Boston to Northern Ireland

Recent round-trip flight deals

8/18Sun
1 stopBritish Airways
10h 30mBOS-BHD
8/28Wed
1 stopBritish Airways
11h 10mBHD-BOS
$595
8/18Sun
2 stopsAmerican Airlines
14h 14mBOS-BHD
8/27Tue
1 stopAmerican Airlines
18h 15mBHD-BOS
$600
8/18Sun
2 stopsAmerican Airlines
14h 14mBOS-BHD
8/27Tue
2 stopsAmerican Airlines
15h 41mBHD-BOS
$610
9/6Fri
1 stopBritish Airways
15h 15mBOS-BHD
12/16Mon
1 stopBritish Airways
23h 30mBHD-BOS
$655
9/6Fri
2 stopsBritish Airways
21h 21mBOS-BHD
12/16Mon
2 stopsBritish Airways
33h 05mBHD-BOS
$662
9/6Fri
2 stopsAmerican Airlines
16h 35mBOS-BHD
12/16Mon
1 stopAmerican Airlines
27h 10mBHD-BOS
$665
6/23Sun
2 stopsLufthansa
37h 45mBOS-BHD
7/2Tue
2 stopsLufthansa
31h 15mBHD-BOS
$1,001
6/23Sun
1 stopDelta
15h 25mBOS-BHD
7/2Tue
1 stopDelta
30h 10mBHD-BOS
$1,040
6/13Thu
1 stopLufthansa
15h 45mBOS-BHD
9/6Fri
1 stopLufthansa
29h 25mBHD-BOS
$1,059
7/10Wed
2 stopsAer Lingus
14h 30mBOS-BHD
7/13Sat
2 stopsAer Lingus
25h 55mBHD-BOS
$1,131

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Recent one-way flight deals

8/20Tue
2 stops
21h 55mBOS-BFS
$252
9/16Mon
2 stops
23h 13mBOS-BFS
$256
8/21Wed
2 stops
24h 25mBOS-BFS
$269
9/16Mon
3 stops
38h 15mBOS-BFS
$271
10/21Mon
1 stopLufthansa
15h 45mBOS-BHD
$331
10/18Fri
1 stopDelta
19h 00mBOS-BHD
$342
10/18Fri
2 stopsDelta
22h 29mBOS-BHD
$347
8/16Fri
2 stopsAir France
13h 15mBOS-BHD
$484
8/17Sat
1 stopLufthansa
10h 20mBOS-BHD
$562
6/12Wed
2 stopsAmerican Airlines
14h 15mBOS-BHD
$638

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Last minute flights from Boston to Northern Ireland

Last minute flight, train and bus deals

6/5Wed
multi-stopBritish Airways
21h 59mBOS-BHD
6/11Tue
multi-stopBritish Airways
12h 05mBHD-BOS
$768
6/6Thu
multi-stopDelta
17h 00mBOS-BHD
6/13Thu
multi-stopDelta
30h 10mBHD-BOS
$806
6/5Wed
multi-stopDelta
19h 10mBOS-BHD
6/11Tue
multi-stopDelta
25h 20mBHD-BOS
$808
6/6Thu
multi-stopDelta
20h 20mBOS-BHD
6/13Thu
multi-stopDelta
30h 10mBHD-BOS
$812
6/6Thu
multi-stopDelta
17h 00mBOS-BHD
6/13Thu
multi-stopDelta
30h 20mBHD-BOS
$816
6/5Wed
multi-stopDelta
20h 20mBOS-BHD
6/11Tue
multi-stopDelta
31h 03mBHD-BOS
$822
6/5Wed
multi-stop
22h 10mBOS-BFS
6/11Tue
multi-stop
16h 25mBFS-BOS
$870
6/5Wed
multi-stop
22h 10mBOS-BFS
6/11Tue
multi-stop
27h 40mBFS-BOS
$876
6/6Thu
multi-stopBritish Airways
9h 40mBOS-BHD
6/13Thu
multi-stopBritish Airways
12h 15mBHD-BOS
$892
6/5Wed
multi-stop
22h 10mBOS-BFS
6/11Tue
multi-stop
15h 15mBFS-BOS
$929

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Boston - Northern Ireland Flights

Departure:

Boston (BOS)United States

Return flight deals:

Northern Ireland - Boston

Cabin classes: