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Cheap flights from the United States to Belfast

LAX — BHD
Oct 31 — Nov 71
Sat 10/31
Sat 11/7
1 adult, Economy
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Find flight deals from USA to Belfast

Popular in

September

Cheapest in

April

Average price

$957
Highest demand for flights based on searches. 45% potential increase in price ($1,211 potential increase over avg. RT price).
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Cheapest flight prices on average. 41% potential price decrease ($426 potential savings vs. average RT price).
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Average for round-trip flights in October 2026
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Cheapflights Insights

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

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

Currently, January is the cheapest month in which you can book a flight from USA to Belfast (average of $603). Flying from USA to Belfast in July is currently the most expensive (average of $2,469). 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.

The best insider tips for theUnited States to Belfast flights

Cheapflights partnered with top experts to bring you the best recommendations for your theUnited States to Belfast trip
Our travel experts
Marisa Garcia

Marisa Garcia

Expert on American Airlines

Marisa knows planes inside and out, spending 16 years working on aircraft in hangars at airports around the world. She is an aviation industry expert, specialized in airline interiors and regulations. Ten years ago, she pivoted to journalism. She shares her insights in leading aviation, travel, and business publications and on her site FlightChic.

Read more
Evie Carrick

Evie Carrick

Expert on Aer Lingus

Evie Carrick is a writer and editor who has lived in five countries and traveled to over 50, with extensive experience flying around the world. She was born in Colorado, but has spent time flying to both coasts to visit family. She writes regularly for Travel + Leisure, BuzzFeed, and SKI and recently published seven travel journals with Simon & Schuster.

Read more
Gabriel Leigh

Gabriel Leigh

Expert on British Airways

Gabriel is a writer and video creator. As senior content producer for Flightradar24 and Monocle’s transport correspondent, he keeps a close eye on aviation in particular. He has also written travel articles for the likes of The New York Times. Born in New York but raised around the world, he now lives in Sweden. He’s been to 75 countries, flying 2.3 million miles on 113 airlines and through 234 airports in the process.

Read more
Harriet Baskas

Harriet Baskas

Expert on Delta

Harriet is an award-winning journalist who is happiest in an airport or an unusual museum. Her stories about airports, air travel, and the business of travel have appeared on NBC News, CNBC, USA TODAY, The Points Guy and other outlets. She is the creator of the StuckatTheAirport.com blog and the author of nine books. When not out on the road or exploring the latest airport amenities, she’s home in Seattle getting ready for the next adventure.

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Reviews of airlines servicing Belfast

See what other customers who have flown with Delta and British Airways from the United States to Belfast have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.8
Good
8,615 reviews

Boarding

8.1

Comfort

7.8

Overall

7.8

Entertainment

7.8

Food

7.2

Crew

8.5

Reviews

1 / 20
4.0
Okay

Jennifer,Sep 2026

ORD - LGA

The flight crew was 30 minutes late to an am flight and then that caused a delay
Delta
7.8
Good
8,615 reviews
Delta
7.8
Good
8,615 reviews

Boarding

8.1

Comfort

7.8

Overall

7.8

Entertainment

7.8

Food

7.2

Crew

8.5

Reviews

1 / 20
4.0
Okay

Jennifer,Sep 2026

ORD - LGA

The flight crew was 30 minutes late to an am flight and then that caused a delay
British Airways
6.7
Okay
8,241 reviews
Delta
7.8
Good
8,615 reviews

Boarding

8.1

Comfort

7.8

Overall

7.8

Entertainment

7.8

Food

7.2

Crew

8.5

Reviews

1 / 20
4.0
Okay

Jennifer,Sep 2026

ORD - LGA

The flight crew was 30 minutes late to an am flight and then that caused a delay

Related info for your journey

  • What are the cheapest airlines to fly from USA to Belfast one-way?

    One-way options have recently been found by users for as low as $276 on British Airways. Other airlines that offer cheap prices include Virgin Atlantic from $382 and Aer Lingus from $388 one-way.

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

    The most popular flight routes from USA to Belfast are Dallas/Fort Worth - Belfast Intl, Boston Logan Intl - Belfast Intl and Dallas/Fort Worth - Belfast City.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from USA to Belfast 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 USA to Belfast?

    Currently, January is the cheapest month in which you can book a flight from USA to Belfast (average of $603). Flying from USA to Belfast in July is currently the most expensive (average of $2,469). 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

Top 2 airlines flying from USA to Belfast

AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$586Average$951FlexibilityNo cancel feeOn-time70%
DeltaCheapest$973Average$1,253FlexibilityNo cancel feeOn-timeN/A

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