What are the cheapest airlines flying from Atlanta to Belfast round-trip?

Flying on British Airways is currently your cheapest option to Belfast, with prices starting at $641. Another option worth looking into is Delta, starting at $973 round trip.

In terms of precipitation, rainfall in Belfast ranges from 2.0 - 3.5 inches per month. October is typically the wettest month, when rainfall can reach 3.5 in. April is typically the driest time to visit Belfast when rainfall is around 2.0 in.

If weather is an important factor for your trip to Belfast, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 60.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 41.0 F).

What is the cheapest time of day to fly from ATL to BFS?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Atlanta to Belfast as you normally would.

What airport do you fly from for flights from Atlanta to Belfast?

Most people fly from Atlanta Hartsfield-Jackson (ATL) if they book a flight from Atlanta to Belfast. On average, Hartsfield-Jackson has 0 outbound flights to Belfast per day from 2 airlines. Atlanta Hartsfield-Jackson is conveniently located just 8.2 mi from Atlanta’s city center.

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

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

How can I find direct flights from Atlanta to Belfast?

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

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

Yes. Cheapflights offers flight deals from Atlanta 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.

Find Cheap Flights from Atlanta to Belfast

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1. Tell us where you want to go

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Best time to book a flight from Atlanta to Belfast

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ATL-BF1

Estimated round-trip price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Reviews of airlines servicing Belfast

See what other customers who have flown with Delta and British Airways from Atlanta 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

8,653 reviews

Reviews

1 / 20

4.0

Okay

Joel,May 2026

ATL - JAX

The flight was delivered 50 minutes and taxing took what felt like 20 minutes to takeoff.

Delta

7.8

Good

8,653 reviews

Delta

7.8

Good

8,653 reviews

Reviews

1 / 20

4.0

Okay

Joel,May 2026

ATL - JAX

The flight was delivered 50 minutes and taxing took what felt like 20 minutes to takeoff.

British Airways

6.7

Okay

8,255 reviews

Delta

7.8

Good

8,653 reviews

Reviews

1 / 20

4.0

Okay

Joel,May 2026

ATL - JAX

The flight was delivered 50 minutes and taxing took what felt like 20 minutes to takeoff.

Related info for your journey

What airport do you fly from for flights from Atlanta to Belfast?
Most people fly from Atlanta Hartsfield-Jackson (ATL) if they book a flight from Atlanta to Belfast. On average, Hartsfield-Jackson has 0 outbound flights to Belfast per day from 2 airlines. Atlanta Hartsfield-Jackson is conveniently located just 8.2 mi from Atlanta’s city center.
What are the cheapest airlines flying from Atlanta to Belfast round-trip?
Flying on British Airways is currently your cheapest option to Belfast, with prices starting at $641. Another option worth looking into is Delta, starting at $973 round trip.
Can I find deals for flights from Atlanta to Belfast that include hotel bookings?
Yes. In addition to deals on Atlanta to Belfast flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Atlanta to Belfast?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Atlanta to Belfast.
Can I find deals for business class flights from Atlanta to Belfast?
Yes. Cheapflights offers flight deals from Atlanta 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.

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Top 2 airlines flying from Atlanta to Belfast

Airline	Cheapest	Average	Flexibility	On-time
British Airways	Cheapest$641	Average$1,107	FlexibilityNo cancel fee	On-time70%
Delta	Cheapest$973	Average$1,253	FlexibilityNo cancel fee	On-timeN/A

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Find cheap flights from Atlanta to Belfast with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Best time to book a flight from Atlanta to Belfast

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

Reviews of airlines servicing Belfast

See what other customers who have flown with Delta and British Airways from Atlanta 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.

Related info for your journey

What airport do you fly from for flights from Atlanta to Belfast?

What are the cheapest airlines flying from Atlanta to Belfast round-trip?

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

How can I find direct flights from Atlanta to Belfast?

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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Atlanta to Belfast

See prices for flight routes from nearby airports that may be better suited for you.

Complete your trip

Complete your trip to Belfast by adding a car rental and/or hotel reservation to your travel itinerary.

Search flights from Atlanta to Belfast by cabin class

Find flights from Atlanta to Belfast, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Atlanta and Belfast flights

Browse other Atlanta and Belfast flight options. Last updated on October 10, 2026.

Other flights from Atlanta

Browse through other flights departing from Atlanta. Flights are based on user searches made on Cheapflights and were last updated on October 10, 2026.

Popular flight searches

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Top 2 airlines flying from Atlanta to Belfast

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Cheap flights from Atlanta (ATL) to Belfast

Find cheap flights from Atlanta to Belfast with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Best time to book a flight from Atlanta to Belfast

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

Reviews of airlines servicing Belfast

See what other customers who have flown with Delta and British Airways from Atlanta 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.

Related info for your journey

What airport do you fly from for flights from Atlanta to Belfast?

What are the cheapest airlines flying from Atlanta to Belfast round-trip?

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

How can I find direct flights from Atlanta to Belfast?

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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Atlanta to Belfast

See prices for flight routes from nearby airports that may be better suited for you.

Complete your trip

Complete your trip to Belfast by adding a car rental and/or hotel reservation to your travel itinerary.

Search flights from Atlanta to Belfast by cabin class

Find flights from Atlanta to Belfast, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Atlanta and Belfast flights

Browse other Atlanta and Belfast flight options. Last updated on October 10, 2026.

Other flights from Atlanta

Browse through other flights departing from Atlanta. Flights are based on user searches made on Cheapflights and were last updated on October 10, 2026.

Popular flight searches

Check out other popular destinations found by fellow travelers in 2026

Top 2 airlines flying from Atlanta to Belfast

100% Free

Book with Flexibility

Travel Smart