Cheap flights from Belfast Intl Airport to New Hampshire from £428

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Belfast Intl Airport to New Hampshire departing on 29/6. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags
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Find the cheapest flights from Belfast Intl Airport to New Hampshire

Cheap return flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
05:45 - 22:15
BFS
-
BOS
20h 30m
2 stops
Multiple Airlines Logo
20:50 - 21:45
BOS
-
BFS
19h 55m
3 stops
£809Multiple Airlines
Fri, 27 Mar - Fri, 3 Apr
Multiple Airlines Logo
08:05 - 19:55
BFS
-
BOS
15h 50m
2 stops
Multiple Airlines Logo
21:15 - 21:15
BOS
-
BFS
19h 00m
2 stops
£880Multiple Airlines
Fri, 27 Mar - Fri, 3 Apr

momondo Fare Finder

 
Customise your flight search to find flights from Belfast Intl Airport to New Hampshire that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 279,928 searches. Data last updated 12 February 2026.
Use the filters below to find and compare flights from Belfast Intl Airport to New Hampshire that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

BelfastBoston

BFS - BOS

BFSBOS

Belfast Intl

Fri 27/3

05:45-22:15

2 stops20h 30m

Boston Logan Intl

Fri 3/4

20:50-21:45

3 stops19h 55m

£809

BelfastBoston

BFS - BOS

BFSBOS

Belfast Intl

Fri 27/3

08:05-19:55

2 stops15h 50m

Boston Logan Intl

Fri 3/4

21:15-21:15

2 stops19h 00m

£880

BelfastBoston

BFS - BOS

BFSBOS

Belfast Intl

Mon 29/6

08:40-19:41

3 stops40h 01m

£428

BelfastBoston

BFS - BOS

BFSBOS

Belfast Intl

Mon 29/6

08:40-19:41

3 stops40h 01m

£431

BelfastBoston

BFS - BOS

BFSBOS

Belfast Intl

Mon 29/6

08:40-17:40

2 stops38h 00m

£466

BelfastBoston

BFS - BOS

BFSBOS

Belfast Intl

Mon 29/6

08:40-17:40

2 stops38h 00m

£466

BelfastBoston

BFS - BOS

BFSBOS

Belfast Intl

Mon 29/6

10:30-20:45

1 stop15h 15m

£570

BelfastBoston

BFS - BOS

BFSBOS

Belfast Intl

Mon 29/6

10:30-20:45

1 stop15h 15m

£582

Flights are sorted by cheapest return flights first.

Sorted by cheapest first

Cheap Belfast Intl Airport to New Hampshire flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Belfast Intl Airport to New Hampshire

Fastest flight time

11h 50m

Direct flights

None
The fastest flight from Belfast Intl Airport to New Hampshire takes 11h 50m
There are no direct flights from Belfast Intl Airport to New Hampshire. There are no popular flight routes from Belfast Intl Airport to New Hampshire.
  • When did momondo last update prices for flights from Belfast Intl Airport to New Hampshire?

    Prices for flights from Belfast Intl Airport to New Hampshire refresh daily.

  • How many operators does momondo search for flights from Belfast Intl Airport to New Hampshire?

  • How old do you have to be to fly from Belfast Intl Airport to New Hampshire?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Belfast Intl Airport to New Hampshire.

  • What documentation or ID do you need to fly to New Hampshire?

    The necessary travel and health documents for your New Hampshire trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

  • How do I get Price Alerts for flights from Belfast Intl Airport to New Hampshire?

    Price Alerts will notify you by email when the price for flights to New Hampshire from Belfast Intl Airport decreases. To activate this, select your desired travel dates and search for offers. While browsing through offers you’ll see the Price Alert widget toggle. Click it to turn on notifications.

  • How can I save money on flights from Belfast Intl Airport to New Hampshire with momondo?

    Leverage our AI within our “Price Forecast” tool, which predicts if it’s better to book now or wait until prices decrease. You can strategically pick the best days to fly and save money on your trip by using our “Price Calendar” tool. “Explore” shows an overview of how much it costs to fly to anywhere from a selected city or airport. Our “Discover” content is a great option for travel inspiration and money-saving tips, while “Price Alerts” will update you when prices change, so you can book when fares are right.

  • How does momondo find its flight prices?

    momondo shows deals across 700+ competitors all at once. momondo is active in 30 international markets, so you can have access to a wide range of options from airlines and OTAs alike.

Why use momondo?

Why should I use momondo to find a flight deal from Belfast to New Hampshire?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Belfast to New Hampshire . Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Belfast to New Hampshire with flexible booking policies on momondo?

momondo does allow users to show only those flights to New Hampshire from Belfast which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Belfast to New Hampshire?

momondo helps you find the best flight between Belfast and New Hampshire by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Belfast to New Hampshire right now. Can momondo alert me if prices change?

Price alerts on flights to New Hampshire from Belfast are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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1 adult
Sat 14/3
Sat 21/3

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