Cheap flights from Washington, D.C. Dulles Intl Airport to Belfast Intl Airport from $324
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Washington, D.C. Dulles Intl Airport to Belfast Intl Airport departing on 6/6. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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How to get the cheapest flight ticket from Washington, D.C. Dulles Intl Airport to Belfast Intl Airport
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 day to depart on your flight to Belfast Intl Airport?
The cheapest day to depart on your flight to Belfast Intl Airport is on a Tuesday when prices can be found for as low as $680. This is often the case because there is less demand to fly during this day of the week. When flying out on a Friday, the most expensive travel day of the week, you can expect to see flight prices from Washington, D.C. Dulles Intl Airport to Belfast Intl Airport for around $884.
What is the cheapest time of day to depart on your flight to Belfast Intl Airport?
In the evening is the cheapest time of day to fly from Washington, D.C. Dulles Intl Airport to Belfast Intl Airport when you can find flight prices for as low as $683. Flying to Belfast Intl Airport in the evening is an ideal time because this is during off-peak travel hours. In contrast, the most expensive time of day to depart to Belfast Intl Airport is in the afternoon when prices are around $762.
When to book flights from Washington, D.C. Dulles Intl Airport to Belfast Intl Airport
Cheap Washington, D.C. Dulles Intl Airport to Belfast Intl Airport (IAD to BFS) flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Washington, D.C. Dulles Intl Airport to Belfast Intl Airport
How far is Washington, D.C. Dulles Intl to Belfast Intl by plane?
Belfast Intl is 3375.6 mi away from Washington, D.C. Dulles Intl. By plane, this route typically takes 15h 05m.
When did momondo last update prices for flights from Washington, D.C. Dulles Intl Airport to Belfast Intl Airport?
Prices for flights from Washington, D.C. Dulles Intl Airport to Belfast Intl Airport are refreshed on a daily basis.
How many operators does momondo search for flights from Washington, D.C. Dulles Intl Airport to Belfast Intl Airport?
The number of operators available for flights from Washington, D.C. Dulles Intl Airport to Belfast Intl Airport is 1 as of April 2025.
How old do you have to be to fly from Washington, D.C. Dulles Intl Airport to Belfast Intl Airport?
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 Washington, D.C. Dulles Intl Airport to Belfast Intl Airport.
What documentation or ID do you need to fly to Belfast Intl Airport?
The travel and health documents you'll need for your trip to Belfast Intl Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Belfast Intl Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
What is the most popular airline from Washington, D.C. Dulles Intl Airport to Belfast Intl Airport?
Based on momondo bookings for flights between Washington, D.C. Dulles Intl Airport and Belfast Intl Airport, the leading airline is British Airways, making up 100% of the total bookings.
Best airlines flying from Washington, D.C. Dulles Intl Airport to Belfast Intl Airport
Compare and see reviews for airlines that fly from Washington, D.C. Dulles Intl Airport to Belfast Intl Airport with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $575 | Free Cancellation | Rating 6.6 6,771 reviews |
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Why should I use momondo to find a flight deal from Washington, D.C. to Belfast?
To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Belfast from Washington, D.C..
Can I find flights from Washington, D.C. to Belfast with flexible booking policies on momondo?
Flights from Washington, D.C. to Belfast with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.
How can momondo help me find flights from Washington, D.C. to Belfast?
Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Belfast from Washington, D.C..
I’m not ready to book a flight from Washington, D.C. to Belfast right now. Can momondo alert me if prices change?
Of course. momondo tracks the price of Washington, D.C. to Belfast flights. All you need is a valid email address and we will do the rest; it is that quick and easy.