Cheap flights from Boston to Belfast from $287
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Boston to Belfast departing on 8/6. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
Discover deals from 900+ travel sites with momondo.
Save money when you book flights with momondo
Big names and deals
Big names and deals
Search 100s of travel sites to compare prices.Filter for what you want
Filter for what you want
Free Wi-Fi? Stopover? Instantly customize your results.Trusted and free
Trusted and free
We’re completely free to use - no hidden charges or fees.Price Alerts
Price Alerts
Not ready to book? to track prices.Find the cheapest flights from Boston to Belfast
Cheap round-trip flights
Cheap one-way flights
British Airways flights from Boston to Belfast
Our best British Airways deals on Boston to Belfast flight tickets
Delta flights from Boston to Belfast
Our best Delta deals on Boston to Belfast flight tickets
See travel insights to Belfast from
How to get the cheapest flight ticket from Boston to Belfast
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 Belfast?
In general, February is the cheapest month to fly from Boston to Belfast. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $589. If you don’t want to visit Belfast in February, then you should wait until March to fly from Boston, when ticket prices are also cheap, with an average price of $654.
What is the cheapest day to depart on your flight to Belfast?
The cheapest day to depart from Boston to Belfast is on a Wednesday when prices can be found for as low as $641. When flying out on a Saturday, the most expensive travel day of the week, you can expect to see flight prices from Boston to Belfast for around $968.
Cheap Boston to Belfast flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Boston to Belfast
How far is Boston Logan Intl to Belfast by plane?
A flight from Boston Logan Intl to Belfast will travel around 2981.1 mi. Flights usually cover this in 9h 20m, depending on flying conditions and air traffic around both airports.
When did momondo last update prices for flights from Boston Logan Intl Airport to Belfast?
Prices for flights from Boston Logan Intl Airport to Belfast refresh daily.
How many operators does momondo search for flights from Boston Logan Intl Airport to Belfast?
The number of operators available for flights from Boston Logan Intl Airport to Belfast is 2 as of April 2025.
How old do you have to be to fly from Boston Logan Intl Airport to Belfast?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Boston Logan Intl Airport to Belfast.
What documentation or ID do you need to fly to Belfast?
The travel and health documents required for your trip to Belfast 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 Belfast. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
Best airlines flying from Boston to Belfast
Compare and see reviews for airlines that fly from Boston to Belfast with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $586 | Free Cancellation | Rating 7.2 10,000 reviews | |||
| PriceFrom $596 | Free Cancellation | Rating 6.6 6,771 reviews |
Why use momondo?
Why should I use momondo to find a flight deal from Boston to Belfast?
momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Boston to Belfast. momondo saves you time and could save you money on your trip.
Can I find flights from Boston to Belfast with flexible booking policies on momondo?
Yes. momondo enables you to select and highlight flights to Belfast from Boston with this policy.
How can momondo help me find flights from Boston to Belfast?
Once all potential Boston to Belfast flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.
I’m not ready to book a flight from Boston to Belfast right now. Can momondo alert me if prices change?
Price alerts on flights to Belfast from Boston are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.