Cheap flights from Belfast to the United States from £276

BHD — LAX
8 Dec — 15 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

Mon 14/1208:00 -
2 stops15h 00m
Mon 28/1219:05 -
2 stops21h 00m
Deal found 7/11£469
Thu 3/1209:25 -
2 stops16h 10m
Thu 17/1217:50 -
2 stops21h 00m
Deal found 5/11£514
Sat 21/1119:05 -
1 stop24h 15m
Mon 7/1221:40 -
2 stops28h 50m
Deal found 7/11£528
Sat 7/1114:55 -
1 stop28h 25m
Thu 26/1117:40 -
1 stop20h 55m
Deal found 5/11£552
Thu 24/1217:35 -
1 stop25h 45m
Thu 7/116:45 -
1 stop21h 10m
Deal found 5/11£556
Thu 19/1119:30 -
3 stops27h 20m
Wed 2/1217:00 -
2 stops16h 20m
Deal found 3/11£564
Thu 3/1207:00 -
2 stops18h 35m
Thu 17/1217:50 -
2 stops18h 30m
Deal found 5/11£570
Mon 7/1208:00 -
2 stops36h 00m
Mon 14/1217:30 -
2 stops22h 35m
Deal found 7/11£578
Sat 21/1119:40 -
1 stop23h 40m
Mon 7/1221:40 -
2 stops17h 50m
Deal found 7/11£588
Sun 22/1108:50 -
2 stops39h 20m
Thu 26/1117:40 -
1 stop34h 25m
Deal found 6/11£589
Mon 14/1207:00 -
2 stops18h 05m
Wed 30/1218:50 -
2 stops14h 40m
Deal found 4/11£595
Fri 13/1116:00 -
2 stops28h 00m
Tue 17/1121:40 -
1 stop14h 40m
Deal found 4/11£619

Find flight deals from Belfast to USA

Round-trip from

£469

One-way from

£276

Popular in

December

Cheapest in

January

Average price

£607
14/12-28/12
  • 14/12-28/12
  • 4 total stops
  • 36h 00m total
  • Belfast to USA
15/11-31/12
  • 15/11-31/12
  • 3 total stops
  • 57h 45m 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 November 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

BelfastLos Angeles

BHD Belfast City - LAX Los Angeles

BHDLAX

Belfast City

Fri 16/4

09:05-22:20

3 stops45h 15m

Los Angeles

Wed 31/12

00:00-09:00

Nonstop0h 00m

£329

BelfastMiami

BHD Belfast City - MIA Miami

BHDMIA

Belfast City

Thu 8/4

07:00-19:45

3 stops41h 45m

Miami

Wed 31/12

00:00-06:00

Nonstop0h 00m

£352

BelfastLas Vegas

BHD Belfast City - LAS Las Vegas Harry Reid Intl

BHDLAS

Belfast City

Sun 11/4

07:00-21:45

3 stops46h 45m

Las Vegas Harry Reid Intl

Wed 31/12

00:00-09:00

Nonstop0h 00m

£380

BelfastOrlando

BFS Belfast Intl - MCO Orlando

BFSMCO

Belfast Intl

Thu 31/12

06:30-15:15

1 stop13h 45m

Orlando

Wed 31/12

00:00-06:00

Nonstop0h 00m

£391

BelfastLos Angeles

BHD Belfast City - LAX Los Angeles

BHDLAX

Belfast City

Thu 19/11

07:15-00:47

3 stops25h 32m

Los Angeles

Wed 31/12

00:00-09:00

Nonstop0h 00m

£454

BelfastOrlando

BFS Belfast Intl - MCO Orlando

BFSMCO

Belfast Intl

Thu 25/2

06:30-15:15

1 stop13h 45m

Orlando

Thu 4/3

16:45-10:10

1 stop12h 25m

£474

BelfastDenver

BHD Belfast City - DEN Denver Intl

BHDDEN

Belfast City

Tue 1/12

14:20-18:00

3 stops34h 40m

Denver Intl

Wed 31/12

00:00-08:00

Nonstop0h 00m

£476

BelfastLas Vegas

BHD Belfast City - LAS Las Vegas Harry Reid Intl

BHDLAS

Belfast City

Sat 14/11

14:55-10:33

2 stops51h 38m

Las Vegas Harry Reid Intl

Wed 31/12

00:00-09:00

Nonstop0h 00m

£482

BelfastLos Angeles

BHD Belfast City - LAX Los Angeles

BHDLAX

Belfast City

Mon 22/3

17:20-12:45

1 stop26h 25m

Los Angeles

Wed 31/12

00:00-09:00

Nonstop0h 00m

£484

BelfastLos Angeles

BHD Belfast City - LAX Los Angeles

BHDLAX

Belfast City

Fri 22/1

17:05-11:45

1 stop26h 40m

Los Angeles

Wed 31/12

00:00-09:00

Nonstop0h 00m

£485

Flights are sorted by cheapest return flights first.

Deals found on 3/11

Showing 1-10 of 59 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 £449). Flying from Belfast to USA in June is currently the most expensive (average of £827). 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.

Comfort

7.2

Crew

7.9

Food

6.4

Boarding

7.4

Entertainment

6.8

Overall

7.0

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

Comfort

7.2

Crew

7.9

Food

6.4

Boarding

7.4

Entertainment

6.8

Overall

7.0

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

Comfort

7.2

Crew

7.9

Food

6.4

Boarding

7.4

Entertainment

6.8

Overall

7.0

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 14h 40m. The distance between Belfast and USA is about 5128 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 £449). Flying from Belfast to USA in June is currently the most expensive (average of £827). 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£242Average£725FlexibilityNo cancel feeOn-time70%
Search British Airways flights
American AirlinesCheapest£555Average£660FlexibilityNo 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.