Washington (IAD) → Belfast (BFS)
About Washington to Belfast Flights
Discover the best flights from Washington to Belfast, covering 5,436 km in approximately 7h 18m. Washington (IAD) to Belfast (BFS) is one of the major long-haul routes connecting United States and United Kingdom. With 7 major airlines operating this route including direct flights, travelers have plenty of options to choose from. Whether you're traveling for business or leisure, our comprehensive guide helps you find the best deals, understand seasonal price variations, and choose the right airline for your journey from Washington to Belfast.
12-Month Price History
Flight prices from Washington to Belfast vary significantly throughout the year. February typically offers the best deals with average prices around $1069, while July sees the highest prices, averaging $1807. Savvy travelers can save up to 41% by choosing their travel dates wisely.
Best Time to Fly
Cheapest Month
February
Save up to 40% on average
Most Expensive
July
Peak season pricing
Book in Advance
164 days
For best prices
Booking Tips
For the best prices on Washington to Belfast flights, we recommend booking 120 days in advance. International flights typically see price increases as the departure date approaches, so early booking is advisable. Tuesday and Wednesday departures often offer the lowest fares, while Friday and Sunday flights tend to be more expensive due to business and leisure travel demand. Consider flying early morning or late evening for additional savings, as these off-peak times usually have lower demand.
Airlines Serving This Route
| Airline | Economy | Business | First |
|---|---|---|---|
United Airlines UA | $1250 | $4890 | $6500 |
Delta Air Lines DL | $1260 | $5420 | $7720 |
American Airlines AA | $1410 | $4430 | $6790 |
Air France AF | $1450 | $5210 | $8170 |
British Airways BA | $1450 | $5530 | $7760 |
Lufthansa LH | $1670 | $5510 | $9450 |
Emirates EK | $1740 | $6190 | $10420 |
United Airlines
UA
Economy
$1250
Business
$4890
First
$6500
Delta Air Lines
DL
Economy
$1260
Business
$5420
First
$7720
American Airlines
AA
Economy
$1410
Business
$4430
First
$6790
Air France
AF
Economy
$1450
Business
$5210
First
$8170
British Airways
BA
Economy
$1450
Business
$5530
First
$7760
Lufthansa
LH
Economy
$1670
Business
$5510
First
$9450
Emirates
EK
Economy
$1740
Business
$6190
First
$10420
Prices shown are estimates based on historical data. Actual prices may vary based on dates, availability, and current promotions.
Alternative Flight Options
Washington → Belfast
Ronald Reagan Washington National (DCA) to Belfast International (BFS)
Distance: 5,418 km
Average price: $1187
Washington → Dublin
Washington Dulles International (IAD) to Dublin (DUB)
Distance: 5,464 km
Average price: $1195
Washington → Glasgow
Washington Dulles International (IAD) to Glasgow International (GLA)
Distance: 5,518 km
Average price: $1206
Washington → Glasgow
Washington Dulles International (IAD) to Glasgow International (GLA)
Distance: 5,518 km
Average price: $1206
Don't Forget Travel Insurance!
Found your flight? Protect your trip with SafetyWing's comprehensive travel insurance. Perfect for trips to Belfast, United Kingdom.
- Medical coverage up to $250,000
- Trip interruption & delays covered
- Lost luggage protection included
From just $45/month • Works in 180+ countries • COVID-19 coverage included
Trusted by 100,000+ travelers
Frequently Asked Questions
How long is the flight from Washington to Belfast?
The flight time from Washington (IAD) to Belfast (BFS) is approximately 7 hours and 18 minutes. This duration is for direct flights and may vary depending on aircraft type, weather conditions, and air traffic.
What is the distance between Washington and Belfast?
The aerial distance between Washington and Belfast is 5,436 kilometers (3,378 miles). This is the straight-line distance, which is used to calculate flight times.
Which airlines fly from Washington to Belfast?
Several airlines operate flights between Washington and Belfast, including United Airlines, American Airlines, Delta Air Lines and 4 more airlines. Direct flights are available on this route.
What is the cheapest month to fly from Washington to Belfast?
Based on historical data, February typically offers the lowest airfares for flights from Washington to Belfast. However, prices can vary based on holidays, events, and airline promotions. We recommend checking our price calendar for the most up-to-date information.
How far in advance should I book my flight to Belfast?
For the best prices on Washington to Belfast flights, we recommend booking 79 days in advance. International flights generally require earlier booking than domestic routes.
Do I need a visa to travel from Washington to Belfast?
Visa requirements depend on your nationality and the purpose of your visit. Citizens of United States traveling to United Kingdom should check the latest visa requirements. Visit our partner site visarequirements.io for detailed visa information.
What is the time difference between Washington and Belfast?
Washington operates on America/New_York time zone, while Belfast is in the Europe/London time zone. For current time differences and to plan your schedule, visit our partner site timezig.com for accurate timezone conversions.