Cheap flights from Belfast to the United States from $248
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Belfast to the United States departing on 5/21. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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How to get the cheapest flight ticket from Belfast to United States
Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip
What is the cheapest month to fly to United States?
In general, September is the cheapest month to fly from Belfast to United States. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $556. If you aren’t able to travel during the month of September, then book flights to United States from Belfast during May instead. Flights to United States in May, while not as cheap as those in September, still average around $579.
What is the cheapest day to depart on your flight to United States?
According to our data, Sunday is the cheapest day to fly to United States from Belfast. The lowest ticket price found for a Sunday departure recently was $566. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. If your travel schedule is flexible, try to avoid departing on a Thursday because tickets tend to average around $568. These prices are subject to change though, so be sure to set up a Price Alert for flights to United States.
Cheap Belfast to United States flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Belfast to United States
When did momondo last update prices for flights from Belfast to United States?
Prices for flights from Belfast to United States refresh daily.
How many operators does momondo search for flights from Belfast to United States?
As of April 2025, there is 1 operator available to choose from for flights from Belfast to United States.
How old do you have to be to fly from Belfast to United States?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Belfast to United States.
What documentation or ID do you need to fly to United States?
The travel and health documents required for your trip to United States can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at United States. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
Best airlines flying from Belfast to United States
Compare and see reviews for airlines that fly from Belfast to United States with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $489 | Free Cancellation | Rating 6.6 6,834 reviews |
Why use momondo?
Why should I use momondo to find a flight deal from Belfast to United States?
We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Belfast to United States for you.
Can I find flights from Belfast to United States with flexible booking policies on momondo?
Yes. momondo enables you to select and highlight flights to United States from Belfast with this policy.
How can momondo help me find flights from Belfast to United States?
Once you have performed a search for Belfast to United States flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.
I’m not ready to book a flight from Belfast to United States right now. Can momondo alert me if prices change?
Yes. momondo can track prices for Belfast to United States flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.