Cheap flights from Belfast to the United States from £305

BHD — LAX
30 Nov — 7 Dec1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Belfast to USA

Enter your travel dates to find the best prices.

Cheapest flights from Belfast to USA

Thu 12/1106:30 -
1 stop14h 10m
Sun 15/1116:40 -
1 stop23h 45m
Deal found 29/10£507
Mon 23/1108:00 -
2 stops36h 00m
Sun 6/1216:30 -
2 stops19h 50m
Deal found 26/10£537
Thu 12/1116:00 -
2 stops32h 20m
Tue 17/1117:30 -
2 stops18h 50m
Deal found 30/10£557
Thu 26/1107:00 -
2 stops17h 20m
Wed 9/1216:30 -
2 stops18h 00m
Deal found 29/10£563
Mon 7/1207:20 -
1 stop14h 55m
Tue 22/1221:45 -
1 stop18h 10m
Deal found 26/10£581
Thu 5/1114:55 -
2 stops36h 10m
Mon 9/1116:50 -
2 stops22h 40m
Deal found 27/10£614
Mon 14/1219:20 -
2 stops29h 45m
Mon 28/1219:25 -
2 stops20h 05m
Deal found 27/10£622
Mon 23/1109:45 -
2 stops34h 05m
Mon 30/1116:50 -
2 stops15h 45m
Deal found 26/10£644
Thu 24/1206:30 -
2 stops17h 41m
Sun 17/116:01 -
2 stops16h 49m
Deal found 28/10£645
Thu 26/1106:30 -
1 stop16h 25m
Thu 3/1217:25 -
1 stop15h 30m
Deal found 29/10£668
Wed 25/1106:35 -
1 stop16h 20m
Wed 2/1217:25 -
1 stop15h 30m
Deal found 28/10£672
Wed 25/1114:20 -
2 stops34h 10m
Wed 2/1214:45 -
3 stops34h 25m
Deal found 28/10£678

Find flight deals from Belfast to USA

Round-trip from

£507

One-way from

£305

Popular in

December

Cheapest in

January

Average price

£499
12/11-15/11
  • 12/11-15/11
  • 2 total stops
  • 37h 55m total
  • Belfast to USA
15/12-31/12
  • 15/12-31/12
  • 3 total stops
  • 41h 15m total
  • Belfast to USA
Highest demand for flights based on searches. 5% potential increase in price (£23 potential increase over avg. return price).
Cheapest flight prices on average. 3% potential price decrease (£15 potential savings vs. average return price).
Average for round-trip flights in October 2026

Cheapflights Fare Finder

 
Use the filters below to find and compare flights from Belfast to the United States that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

BelfastMiami

BHD Belfast City - MIA Miami

BHDMIA

Belfast City

Tue 15/12

07:20-19:35

3 stops41h 15m

Miami

Wed 31/12

00:00-06:00

Nonstop0h 00m

£305

BelfastNew York

BHD Belfast City - JFK New York John F Kennedy Intl

BHDJFK

Belfast City

Mon 9/11

14:20-18:00

3 stops56h 40m

New York John F Kennedy Intl

Wed 31/12

00:00-06:00

Nonstop0h 00m

£344

BelfastLas Vegas

BHD Belfast City - LAS Las Vegas Harry Reid Intl

BHDLAS

Belfast City

Tue 24/11

14:20-13:30

3 stops55h 10m

Las Vegas Harry Reid Intl

Wed 31/12

00:00-09:00

Nonstop0h 00m

£349

BelfastSan Francisco

BHD Belfast City - SFO San Francisco

BHDSFO

Belfast City

Tue 13/4

08:05-16:05

3 stops40h 00m

San Francisco

Wed 31/12

00:00-09:00

Nonstop0h 00m

£357

BelfastMiami

BHD Belfast City - MIA Miami

BHDMIA

Belfast City

Mon 14/12

07:45-14:50

3 stops36h 05m

Miami

Wed 31/12

00:00-06:00

Nonstop0h 00m

£363

BelfastLas Vegas

BHD Belfast City - LAS Las Vegas Harry Reid Intl

BHDLAS

Belfast City

Wed 27/1

07:25-14:15

3 stops38h 50m

Las Vegas Harry Reid Intl

Wed 31/12

00:00-09:00

Nonstop0h 00m

£387

BelfastNew York

BHD Belfast City - JFK New York John F Kennedy Intl

BHDJFK

Belfast City

Sun 29/11

20:00-18:00

3 stops51h 00m

New York John F Kennedy Intl

Wed 31/12

00:00-06:00

Nonstop0h 00m

£392

BelfastLos Angeles

BHD Belfast City - LAX Los Angeles

BHDLAX

Belfast City

Fri 20/11

12:50-07:20

3 stops50h 30m

Los Angeles

Wed 31/12

00:00-09:00

Nonstop0h 00m

£396

BelfastLos Angeles

BHD Belfast City - LAX Los Angeles

BHDLAX

Belfast City

Fri 16/4

09:05-14:45

2 stops37h 40m

Los Angeles

Wed 31/12

00:00-09:00

Nonstop0h 00m

£415

BelfastLos Angeles

BHD Belfast City - LAX Los Angeles

BHDLAX

Belfast City

Tue 23/3

12:05-17:40

3 stops36h 35m

Los Angeles

Wed 31/12

00:00-09:00

Nonstop0h 00m

£431

Flights are sorted by cheapest return flights first.

Deals found on 27/10

Showing 1-10 of 60 resultsSorted by cheapest first
1
2
3
...
6

Best time to book a flight from Belfast to USA

Have a flexible travel schedule? Discover the best time to fly to USA from Belfast with our price prediction graph.
Estimated return price

Cheapflights Insights

Everything you need to know about your flight from Belfast to the United States

What is the cheapest month to book a flight from Belfast to USA?

Currently, February is the cheapest month in which you can book a flight from Belfast to USA (average of £448). Flying from Belfast to USA in June is currently the most expensive (average of £824). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Reviews of airlines servicing USA

Check out reviews from past customers who have flown with American Airlines and British Airways from Belfast to the United States to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Entertainment

6.8

Comfort

7.2

Overall

7.0

Crew

7.9

Boarding

7.4

Food

6.4

Reviews

1 / 20
10.0
Excellent

Ron,Aug 2026

LHR - LAX

Unfortunately it took an hour and 15 minutes for luggage to get to customs so I had to pay for hotel and other ticket to get home Missed flight

Entertainment

6.8

Comfort

7.2

Overall

7.0

Crew

7.9

Boarding

7.4

Food

6.4

Reviews

1 / 20
10.0
Excellent

Ron,Aug 2026

LHR - LAX

Unfortunately it took an hour and 15 minutes for luggage to get to customs so I had to pay for hotel and other ticket to get home Missed flight

Entertainment

6.8

Comfort

7.2

Overall

7.0

Crew

7.9

Boarding

7.4

Food

6.4

Reviews

1 / 20
10.0
Excellent

Ron,Aug 2026

LHR - LAX

Unfortunately it took an hour and 15 minutes for luggage to get to customs so I had to pay for hotel and other ticket to get home Missed flight

Related info for your journey

  • How long is the flight from Belfast to USA?

    Departing from Belfast to USA will take you 17h 15m. The distance between Belfast and USA is about 3167 mi. This flight may include one or multiple stops.

  • What are the most popular routes from Belfast to USA?

  • Can I find deals for flights from Belfast to USA that include hotel bookings?

    Yes. In addition to deals on Belfast to USA flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Belfast to USA?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Belfast to USA.

  • Can I find deals for business class flights from Belfast to USA?

    Yes. Cheapflights offers flight deals from Belfast to USA by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Belfast to USA?

    Currently, February is the cheapest month in which you can book a flight from Belfast to USA (average of £448). Flying from Belfast to USA in June is currently the most expensive (average of £824). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Alternative routes for Belfast to USA

Top 2 airlines flying from Belfast to USA

AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest£241Average£731FlexibilityNo cancel feeOn-time70%
Search British Airways flights
American AirlinesCheapest£554Average£658FlexibilityNo cancel feeOn-time71%
Search American Airlines flights

Fly with Cheapflights

How does Cheapflights help users find flights from Belfast to USA?

Cheapflights helps you search for flights from Belfast to USA via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

Why should you use Cheapflights to find cheap flight tickets from Belfast to USA?

Millions of users choose and trust Cheapflights to book the best flight deals from Belfast to USA for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

Can Cheapflights find flights from Belfast to USA with no change fees?

Cheapflights does show flights with no change fees to all users. To see these options for flights from Belfast to USA, users can toggle the no change fees filter when performing a flight search.

Can Cheapflights notify me if prices for flights from Belfast to USA become cheaper?

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to USA from Belfast today and book when prices fit your budget.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.