Cheap flights from Washington, D.C., United States to Belfast, United Kingdom

Flights starting at $398. Choose between easyJet, Spirit Airlines, or Play to find the best price.

Make your travel wishlist, we'll do the rest
Hidden deals
Effortless booking
Travel hacking

Tips to know when travelling to Belfast

Round trips

Mailbox
Receive exclusive deals by email
Travelers usually depart from Washington Dulles International, Baltimore–Washington International, or Ronald Reagan Washington National when they travel from Washington, D.C. to Belfast. Book your trip to arrive at Belfast International, or George Best Belfast City. The most popular airlines for this route are easyJet, Spirit Airlines, Play, Aer Lingus, and SAS. Washington, D.C. and Belfast have 330 direct flights per week. When you arrive at Belfast, consider visiting Trinity College, Dublin, Bru Na Boinne Neolithic Site (County Meath, Ireland), and Giant's Causeway.

Check-in for a flight from Washington, D.C. to Belfast

NameCarrier codeIATA CodePassport needed during bookingOnline check-in available
easyJetEZYU2NoOpens 720 days before flight
Closes 2 hours before flight
Spirit AirlinesNKSNKNoOpens 24 days before flight
Closes 1 hours before flight
PlayFPYOGNo0
0
Aer LingusEINEINoOpens 48 days before flight
Closes 5 hours before flight
SASSASSKNoOpens 30 days before flight
Closes 1 hours before flight

Weather in Belfast

Average Weather

MonthAverage monthly max temperatureAverage monthly min temperature
January6°C2°C
February7°C3°C
March8°C3°C
April11°C4°C
May13°C7°C
June16°C10°C
July17°C11°C
August17°C11°C
September15°C10°C
October12°C8°C
November9°C5°C
December7°C3°C
Hottest Month
17°C
July
Coldest month
2°C
January
Sunny days
255
days per year
Snow days
2
days per year

14 day forecast

Monday
3 Jun
89%
16°C11°C
10 Jun
84%
14°C10°C
Tuesday
4 Jun
89%
13°C6°C
11 Jun
15°C7°C
Wednesday
5 Jun
88%
12°C4°C
12 Jun
85%
14°C7°C
Thursday
6 Jun
88%
10°C3°C
13 Jun
85%
15°C9°C
Friday
7 Jun
86%
12°C4°C
14 Jun
87%
15°C7°C
Saturday
8 Jun
86%
13°C6°C
15 Jun
89%
17°C11°C
Sunday
9 Jun
84%
15°C8°C
16 Jun
75%
17°C10°C

Frequently asked questions

What are the most popular routes to and from Washington, D.C.?
What are the most popular routes to and from Belfast?
Which airports are there in Washington, D.C.?
What airports are near Washington, D.C.?
What airports are near Belfast?
Is it possible to combine flights, buses, and trains in one itinerary when traveling between Washington, D.C. and Belfast?
What is Virtual Interlining and how do I use it?
Which airlines fly between Washington, D.C. and Belfast?
When's the best time to travel between Washington, D.C. and Belfast?
What flights operate between Washington, D.C. and Belfast?
How many airports are there near Washington, D.C.?
How many airports are there near Belfast?
What time do nonstop (direct) flights between Washington, D.C. and Belfast depart?
What time do nonstop (direct) flights between Washington, D.C. and Belfast arrive?
What time do flights between Washington, D.C. and Belfast depart?
What time do flights between Washington, D.C. and Belfast arrive?

Explore alternative trips

Flights from Washington, D.C.

Flights to Belfast

Popular routes

The nearest countries with flights to Belfast

Here is a list of countries people are flying from

Other destination countries from Washington, D.C.

Here is a list of countries people are flying to
Find the best connection from Washington, D.C. to Belfast
Search flights, trains & buses
We hack the system,
you fly for less