Cheap flights from Belfast International to Washington

Users have found that leaving on a Sunday can be a cost-effective option. It’s possible to save up to 52% on your flight compared to booking on days when demand is much higher.

When searching for a good deal, it’s best to be prepared for potential fluctuations in price. We recommend booking at least 61 days in advance, which can save you up to 20% on flights from Belfast International to Washington compared to booking the week you need them. Waiting 61 days out may not be for everyone, so we have options available for flights within the next two weeks, with the lowest price starting at £469. For sooner than that we have options available in the next 3 days from £492.

Flights from Belfast International to Washington lean towards being more expensive in July. Prices are generally better when you fly from Belfast International to Washington in February, with the cheapest ticket starting at £296.

When flying from Belfast International to Washington, the time of day you fly usually plays a role in the price. Save by searching for a flight at midday, which can drop the price by up to 15% versus a flight in the morning.