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Cheap flights from Northern Ireland to Pennsylvania from £341

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Northern Ireland to Pennsylvania departing on 17/12. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from Northern Ireland to Pennsylvania

Cheap return flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
06:30 - 18:25
BFS
-
EWR
16h 55m2 stops
Multiple Airlines Logo
19:35 - 20:10
EWR
-
BFS
19h 35m2 stops
£399Multiple Airlines
Wed, 21 Jan - Sun, 25 Jan
Multiple Airlines Logo
06:30 - 18:00
BFS
-
JFK
16h 30m2 stops
Multiple Airlines Logo
19:25 - 20:10
JFK
-
BFS
19h 45m2 stops
£410Multiple Airlines
Thu, 22 Jan - Sun, 25 Jan
Multiple Airlines Logo
06:30 - 18:25
BFS
-
EWR
16h 55m2 stops
Multiple Airlines Logo
19:35 - 20:10
EWR
-
BFS
19h 35m2 stops
£410Multiple Airlines
Thu, 22 Jan - Sun, 25 Jan
British Airways Logo
06:35 - 17:46
BHD
-
LGA
16h 11m2 stops
British Airways Logo
15:40 - 09:05
LGA
-
BHD
36h 25m2 stops
£530British Airways
Wed, 4 Feb - Sun, 8 Feb
British Airways Logo
12:25 - 17:46
BHD
-
LGA
34h 21m2 stops
British Airways Logo
15:40 - 09:05
LGA
-
BHD
36h 25m2 stops
£530British Airways
Wed, 4 Feb - Sun, 8 Feb
British Airways Logo
19:10 - 12:45
BHD
-
JFK
22h 35m1 stop
British Airways Logo
07:50 - 08:45
JFK
-
BHD
19h 55m1 stop
£537British Airways
Sun, 26 Apr - Thu, 30 Apr
British Airways Logo
15:50 - 11:05
BHD
-
JFK
24h 15m1 stop
British Airways Logo
07:50 - 08:45
JFK
-
BHD
19h 55m1 stop
£538British Airways
Sun, 26 Apr - Thu, 30 Apr
Delta Logo
17:20 - 18:28
BHD
-
LGA
30h 08m2 stops
Delta Logo
14:59 - 16:50
LGA
-
BHD
20h 51m2 stops
£567Delta
Mon, 12 Jan - Mon, 26 Jan
Delta Logo
17:20 - 19:31
BHD
-
LGA
31h 11m2 stops
Delta Logo
14:59 - 16:50
LGA
-
BHD
20h 51m2 stops
£605Delta
Sun, 11 Jan - Mon, 26 Jan
Delta Logo
09:50 - 21:23
BHD
-
LGA
16h 33m2 stops
Delta Logo
11:00 - 09:20
LGA
-
BHD
17h 20m2 stops
£644Delta
Thu, 23 Apr - Tue, 12 May

KLM flights from Northern Ireland to Pennsylvania

Our best KLM deals on Northern Ireland to Pennsylvania flight tickets
KLM
8 Jan
BHD17:20Belfast City
25h 10m
2 stops
JFK13:30New York John F Kennedy Intl
15 Jan
JFK17:45New York John F Kennedy Intl
18h 05m
1 stop
BHD16:50Belfast City
£700
Find similar
KLM
26 Apr
BHD17:30Belfast City
28h 35m
1 stop
JFK17:05New York John F Kennedy Intl
30 Apr
JFK14:00New York John F Kennedy Intl
14h 20m
2 stops
BHD09:20Belfast City
£990
Find similar
KLM
26 Apr
BHD17:30Belfast City
26h 05m
1 stop
JFK14:35New York John F Kennedy Intl
30 Apr
JFK14:00New York John F Kennedy Intl
14h 20m
2 stops
BHD09:20Belfast City
£991
Find similar

British Airways flights from Northern Ireland to Pennsylvania

Our best British Airways deals on Northern Ireland to Pennsylvania flight tickets
British Airways
4 Feb
BHD06:35Belfast City
16h 11m
2 stops
LGA17:46New York LaGuardia
8 Feb
LGA15:40New York LaGuardia
36h 25m
2 stops
BHD09:05Belfast City
£530
Find similar
British Airways
4 Feb
BHD12:25Belfast City
34h 21m
2 stops
LGA17:46New York LaGuardia
8 Feb
LGA15:40New York LaGuardia
36h 25m
2 stops
BHD09:05Belfast City
£530
Find similar
British Airways
26 Apr
BHD19:10Belfast City
22h 35m
1 stop
JFK12:45New York John F Kennedy Intl
30 Apr
JFK07:50New York John F Kennedy Intl
19h 55m
1 stop
BHD08:45Belfast City
£537
Find similar

momondo Fare Finder

 
Customise your flight search to find flights from Northern Ireland to Pennsylvania 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 11 December 2025.
Use the filters below to find and compare flights from Northern Ireland to Pennsylvania that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

BelfastNewark

BFS - EWR

BFSEWR

Belfast Intl

Wed 21/1

06:30-18:25

2 stops16h 55m

Newark

Sun 25/1

19:35-20:10

2 stops19h 35m

£399

BelfastNew York

BFS - JFK

BFSJFK

Belfast Intl

Thu 22/1

06:30-18:00

2 stops16h 30m

New York John F Kennedy Intl

Sun 25/1

19:25-20:10

2 stops19h 45m

£410

BelfastNewark

BFS - EWR

BFSEWR

Belfast Intl

Thu 22/1

06:30-18:25

2 stops16h 55m

Newark

Sun 25/1

19:35-20:10

2 stops19h 35m

£410

BelfastNew York

BHD - LGA

BHDLGA

Belfast City

Wed 4/2

06:35-17:46

2 stops16h 11m

New York LaGuardia

Sun 8/2

15:40-09:05

2 stops36h 25m

£530

BelfastNew York

BHD - LGA

BHDLGA

Belfast City

Wed 4/2

12:25-17:46

2 stops34h 21m

New York LaGuardia

Sun 8/2

15:40-09:05

2 stops36h 25m

£530

BelfastNew York

BHD - JFK

BHDJFK

Belfast City

Sun 26/4

19:10-12:45

1 stop22h 35m

New York John F Kennedy Intl

Thu 30/4

07:50-08:45

1 stop19h 55m

£537

BelfastNew York

BHD - JFK

BHDJFK

Belfast City

Sun 26/4

15:50-11:05

1 stop24h 15m

New York John F Kennedy Intl

Thu 30/4

07:50-08:45

1 stop19h 55m

£538

BelfastNew York

BHD - LGA

BHDLGA

Belfast City

Mon 12/1

17:20-18:28

2 stops30h 08m

New York LaGuardia

Mon 26/1

14:59-16:50

2 stops20h 51m

£567

BelfastNew York

BHD - LGA

BHDLGA

Belfast City

Sun 11/1

17:20-19:31

2 stops31h 11m

New York LaGuardia

Mon 26/1

14:59-16:50

2 stops20h 51m

£605

BelfastNew York

BHD - LGA

BHDLGA

Belfast City

Thu 23/4

09:50-21:23

2 stops16h 33m

New York LaGuardia

Tue 12/5

11:00-09:20

2 stops17h 20m

£644

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Pennsylvania from

How to get the cheapest flight ticket from Northern Ireland to Pennsylvania

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest day to depart on your flight to Pennsylvania?

According to our data, Friday is the cheapest day to fly to Pennsylvania from Northern Ireland. The lowest ticket price found for a Friday departure recently was £575. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. The most expensive day to fly to Pennsylvania is Wednesday, with ticket prices averaging around £755.

What is the cheapest time of day to depart on your flight to Pennsylvania?

Flying to Pennsylvania from Northern Ireland in the morning is the least expensive time of day to depart. momondo users have found prices as low as £634 when looking at flights departing in the morning. In contrast, the most expensive time of day to depart to Pennsylvania is in the evening when prices are around £848.

Cheap Northern Ireland to Pennsylvania flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Northern Ireland to Pennsylvania

Fastest flight time

11h 45m

Direct flights

None
The fastest flight from Northern Ireland to Pennsylvania takes 11h 45m
There are no direct flights from Northern Ireland to Pennsylvania. There are no popular flight routes from Northern Ireland to Pennsylvania.
Search flight deals

  • When did momondo last update prices for flights from Northern Ireland to Pennsylvania?

    Prices for flights from Northern Ireland to Pennsylvania are refreshed on a daily basis.

  • How many operators does momondo search for flights from Northern Ireland to Pennsylvania?

  • How old do you have to be to fly from Northern Ireland to Pennsylvania?

    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 Northern Ireland to Pennsylvania.

  • What documentation or ID do you need to fly to Pennsylvania?

    The travel and health documents required for your trip to Pennsylvania can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Pennsylvania. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Best airlines flying from Northern Ireland to Pennsylvania

Compare and see reviews for airlines that fly from Northern Ireland to Pennsylvania with momondo
Airline
Rating
Free Cancellation
Price
British AirwaysPriceFrom £455Free CancellationRating
6.7
7,573 reviews
Search British Airways flights

Why use momondo?

Why should I use momondo to find a flight deal from Northern Ireland to Pennsylvania?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Northern Ireland to Pennsylvania for you.

Can I find flights from Northern Ireland to Pennsylvania with flexible booking policies on momondo?

Flights from Northern Ireland to Pennsylvania with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Northern Ireland to Pennsylvania?

Once all potential Northern Ireland to Pennsylvania flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from Northern Ireland to Pennsylvania right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Northern Ireland to Pennsylvania flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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