How much does it cost to fly to Belfast from the US?

A median of $895 round trip in economy, across 25 US gateway metros priced on August 30, 2026 for departures in the following six months. The cheapest was $741 from Chicago and the most expensive $955 from Las Vegas. That ranks Belfast 38 of 40 European cities on price.

Which US airport is cheapest for flights to Belfast?

Chicago, at $741, followed by Philadelphia at $768 and Salt Lake City at $850. Worth knowing that the cheapest gateway to Belfast is often not the cheapest gateway overall — the two questions have different answers.

Is it worth flying from a different airport to reach Belfast?

Usually not. The gap between the cheapest and most expensive US gateway to Belfast is only $214, which is narrow by our data — ranking 35 of 40 on spread. Book from wherever you actually live.

United Kingdom · British Isles

Flying to Belfast from the US

Flying to Belfast costs a median $895 round trip from the US, ranking it 38 of 40 European cities. Cheapest from Chicago at $741.

By Jon Miksis · updated August 30, 2026 · refreshed monthly, whole grid at once

$895: Median round trip from the US, across every gateway
#38 of 40: Rank among European cities, cheapest first
$741: Cheapest fare found, from Chicago
$214: Spread between the best and worst US gateway

Every US gateway to Belfast

The cheapest one-week round trip found from each US metro, all searched on the same day. The spread between top and bottom is $214, which is what shopping departure airports is worth on this route.

Chicago$741
Philadelphia$768
Salt Lake City$850
Miami$863
San Francisco$863
Charlotte$864
Orlando$867
Los Angeles$874
Tampa$874
Phoenix$886
Raleigh$886
Washington DC$890
Atlanta$895
Austin$895
Houston$895
Nashville$895
Portland$895
San Diego$895
Seattle$895
Boston$910
Dallas$923
Detroit$923
Minneapolis$923
Denver$935
Las Vegas$955

Round trip to Belfast, by US departure metro. Cheapest one-week economy round trip found on August 30, 2026 via Google Flights, departing within the following six months. Bars share one scale. A floor across a window, not a bookable price.

How Belfast compares

At a $895 median, Belfast ranks 38 of 40 European cities we price, and 35 of 40 on how much your departure airport matters. Other British Isles cities in the data:

Belfast is one of 5 United Kingdom cities we price. The cheapest way into the country is London at $771 — see cheap flights to United Kingdom for which city to enter by, and which US airport is best for the country as a whole.

For the full ranking and why northern Europe is consistently cheaper to reach, see the cheapest places to fly in Europe. For every gateway at once, see the airports hub.

Common questions

How much does it cost to fly to Belfast from the US?: A median of $895 round trip in economy, across 25 US gateway metros priced on August 30, 2026 for departures in the following six months. The cheapest was $741 from Chicago and the most expensive $955 from Las Vegas. That ranks Belfast 38 of 40 European cities on price.
Which US airport is cheapest for flights to Belfast?: Chicago, at $741, followed by Philadelphia at $768 and Salt Lake City at $850. Worth knowing that the cheapest gateway to Belfast is often not the cheapest gateway overall — the two questions have different answers.
Is it worth flying from a different airport to reach Belfast?: Usually not. The gap between the cheapest and most expensive US gateway to Belfast is only $214, which is narrow by our data — ranking 35 of 40 on spread. Book from wherever you actually live.

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