Find flights
When to book
Airlines

Cheap flights from Belfast Intl Airport to Washington

BFS — SEA
17 loka — 24 loka1
1 adult
1 adult, Economy

Cheap flight deals from Belfast Intl to Washington

Keep the following information in mind while searching for Belfast Intl to Washington flight deals. Data was last updated 17 syyskuu 2025.

Popular in

November

Cheapest in

May

Average price

£551
Highest demand for flights based on searches. 13% potential increase in price (£66 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£17 potential savings vs. average return price).
Search Deals
Average for round-trip flights in September 2025
Search Deals

Reviews of airlines servicing Washington

Get insights into the airlines that provide service to Washington. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Washington. Reviews last updated 17 syyskuu 2025.
Read reviews from past customers who have flown with American Airlines and British Airways from Belfast Intl Airport to Washington. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
American Airlines
7.2
Good
10,000 reviews
Check prices

Entertainment

6.9

Crew

8.0

Boarding

7.5

Food

6.4

Comfort

7.2

Overall

7.2

Reviews

1 / 20
2.0
Mediocre

Nordia,Sept 2025

KIN - MIA

We were to land in Miami sometime after 3pm but couldn’t due to bad weather, we flew around for 2 hrs until we had to land in Forth Myers to refuel, we had to sit another 2 hrs at Forth Myers until given the clearance to refuel, we were hungry, thirsty and frustrated at that point. All the had on the flight to offer was a small plastic glass of water and a pack of biscoff, I requested a cup of tea and was told none was there. We were basically at another airport and not one of the staff could consider that the passengers might be hungry or thirsty being on a plane for around 8 hrs, which you weren’t prepared for, at least find some hot water on board.
American Airlines
7.2
Good
10,000 reviews
American Airlines
7.2
Good
10,000 reviews
Check prices

Entertainment

6.9

Crew

8.0

Boarding

7.5

Food

6.4

Comfort

7.2

Overall

7.2

Reviews

1 / 20
2.0
Mediocre

Nordia,Sept 2025

KIN - MIA

We were to land in Miami sometime after 3pm but couldn’t due to bad weather, we flew around for 2 hrs until we had to land in Forth Myers to refuel, we had to sit another 2 hrs at Forth Myers until given the clearance to refuel, we were hungry, thirsty and frustrated at that point. All the had on the flight to offer was a small plastic glass of water and a pack of biscoff, I requested a cup of tea and was told none was there. We were basically at another airport and not one of the staff could consider that the passengers might be hungry or thirsty being on a plane for around 8 hrs, which you weren’t prepared for, at least find some hot water on board.
British Airways
6.7
Okay
7,363 reviews
American Airlines
7.2
Good
10,000 reviews
Check prices

Entertainment

6.9

Crew

8.0

Boarding

7.5

Food

6.4

Comfort

7.2

Overall

7.2

Reviews

1 / 20
2.0
Mediocre

Nordia,Sept 2025

KIN - MIA

We were to land in Miami sometime after 3pm but couldn’t due to bad weather, we flew around for 2 hrs until we had to land in Forth Myers to refuel, we had to sit another 2 hrs at Forth Myers until given the clearance to refuel, we were hungry, thirsty and frustrated at that point. All the had on the flight to offer was a small plastic glass of water and a pack of biscoff, I requested a cup of tea and was told none was there. We were basically at another airport and not one of the staff could consider that the passengers might be hungry or thirsty being on a plane for around 8 hrs, which you weren’t prepared for, at least find some hot water on board.

Related info for your journey

Find useful and relevant information for your journey from Belfast Intl to Washington. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • Can I find deals for flights from Belfast Intl to Washington that include hotel bookings?

    Yes. In addition to deals on Belfast Intl to Washington flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Belfast Intl to Washington?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Belfast Intl to Washington.

  • Can I find deals for business class flights from Belfast Intl to Washington?

    Yes. Cheapflights offers flight deals from Belfast Intl to Washington by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Belfast Intl Airport to State of Washington?

    Currently, January is the cheapest month in which you can book a flight from Belfast Intl Airport to State of Washington (average of £622). Flying from Belfast Intl Airport to State of Washington in July is currently the most expensive (average of £946). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Belfast Intl to Washington

See prices for flight routes from nearby airports that may be better suited for you.
Belfast Intl to John F Kennedy Intl flights
Belfast Intl to Orlando flights
Belfast Intl to Boston flights
Belfast City to John F Kennedy Intl flights
Belfast City to Orlando flights
Belfast Intl to Seattle flights
Belfast Intl to Miami flights
Belfast City to Miami flights
Belfast Intl to Newark flights
Belfast Intl to Hobby flights
Belfast City to Boston flights
Belfast Intl to Las Vegas flights
Belfast City to George Bush Intcntl flights
Belfast Intl to Dallas/Fort Worth flights
Belfast City to Dallas/Fort Worth flights
Belfast Intl to Baltimore flights
Belfast Intl to O'Hare Intl flights
Belfast City to Newark flights
Belfast City to Las Vegas flights
Belfast City to Atlanta flights
Belfast City to Baltimore flights
Belfast Intl to Atlanta flights
Belfast Intl to San Antonio flights
Belfast Intl to San Francisco flights
Belfast City to O'Hare Intl flights
Belfast Intl to Los Angeles flights
Belfast City to San Francisco flights
Belfast Intl to Dulles Intl flights
Belfast Intl to Charlotte flights
Belfast City to Providence flights
Belfast City to Hartford flights
Belfast City to Charlotte flights
Belfast City to Colorado Springs flights
Belfast City to Grand Rapids flights
Belfast City to Ontario flights
Belfast City to Omaha flights
Belfast City to Dulles Intl flights
Belfast City to Oklahoma City flights
Belfast City to Wichita flights
Belfast City to LaGuardia flights
Belfast City to Los Angeles flights

Top 2 airlines flying from Belfast Intl to Washington

Discover the top 2 airlines that operate flights from Belfast Intl to Washington. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 17 syyskuu 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest£431Average£515FlexibilityNo cancel feeOn-time70%
Search British Airways flights
American AirlinesCheapest£551Average£551FlexibilityNo cancel feeOn-time71%
Search American Airlines flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Belfast Intl to Washington?

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to Washington from Belfast Intl today with Cheapflights!

Why should you use Cheapflights to find cheap flight tickets from Belfast Intl to Washington?

Millions of users choose and trust Cheapflights to book the best flight deals from Belfast Intl to Washington for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

Can Cheapflights find flights from Belfast Intl to Washington with no change fees?

Need flexible booking options for your flight to Washington from Belfast Intl? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

Can Cheapflights notify me if prices for flights from Belfast Intl to Washington become cheaper?

Yes, Cheapflights offers price alerts on Belfast Intl to Washington flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.