$1,102 Cheap British Airways flights Singapore (SIN) to Washington (IAD)

View $1,102 flight on Sun, Sep 28, 2025Opens in a new window

$1,102 Cheap British Airways flights Singapore (SIN) to Washington (IAD)

Prices were available within the past 7 days and start at $1,102 for one-way flights and $1,328 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

British Airways
Mon, Aug 18 - Mon, Aug 25
SIN
Singapore
IAD
Washington
$1,328 Roundtrip, found 9 hours ago
$1,328
Roundtrip
found 9 hours ago
Select British Airways flight, departing Mon, Aug 18 from Singapore to Washington, returning Mon, Aug 25, priced at $1,328 found 9 hours ago
Flights from Singapore (SIN) to Washington (IAD)
Origin airport
Changi
Destination airport
Washington Dulles Intl.
Airlines serving
Air Canada, Air France, Air India, All Nippon Airways, American Airlines, British Airways, Delta, Emirates, Etihad Airways, Japan Airlines, JetBlue Airways, KLM, Korean Air, Lufthansa, Qatar Airways, Singapore Airlines, Swiss International Air Lines, Turkish Airlines, United
Popular airline
Etihad Airways
Distance
9649 mi

Frequently asked questions

How much is a British Airways flight from Changi Airport (SIN) to Washington Dulles Intl. Airport (IAD)?
You'll discover cheap round-trip British Airways flights from $1,328 from SIN to IAD by filtering your results from "Price (lowest to highest)" on Expedia. Or look for options from $1,102 for a one-way journey.**These prices were available on Expedia within the past 7 days, for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.
What is the cheapest month to fly from SIN to IAD with British Airways?
British Airways flights to Washington are typically cheaper in the quieter months of January and February. Whether you need a round-trip or one-way ticket, you could score a better deal then.
What is the cheapest time to book flights from Changi Airport (SIN) to Washington Dulles Intl. Airport (IAD) with British Airways?
To get affordable flights from SIN to IAD with British Airways, start searching about one month before your planned departure. You can save 17% when you book your international tickets 18 to 29 days ahead instead of booking four to five months in advance. Another tip? Booking on Sunday offers average savings of 17% compared to Friday (the most expensive day).**Ideal booking window recommendation is based on average round-trip ticket prices for January through November for 2024. Best day of the week to book recommendation is based on average round-trip ticket prices for January through October 2024. All data sourced from ARC's global airline sales database.
Does British Airways fly nonstop from Changi Airport (SIN) to Washington Dulles Intl. Airport (IAD)?
Fill in your dates, hit search and tick the "Nonstop" filter on Expedia to find any direct flights from SIN to IAD with British Airways or another carrier.
What is the earliest British Airways flight from SIN to IAD?
To find the earliest departures from SIN to IAD with British Airways, filter your results by "Early Morning" and "Morning." Choosing an early flight usually means cancellations are less likely.**Most reliable time of the day recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports does British Airways fly into in Washington?
Hop on a British Airways flight from Changi Airport (SIN) to Washington, and you're most likely to land at Washington Dulles Intl. Airport (IAD). This is the airline's main hub here.
What kind of luggage can I take on a British Airways flight from Changi Airport (SIN) to Washington Dulles Intl. Airport (IAD)?
British Airways allows travelers to bring 1 checked-in bag weighing up to 50 lb with dimensions not exceeding 29 inches x 15 inches x 16 inches on standard economy flights from SIN to IAD. Additionally, you can bring 2 cabin bags with you in the cabin. This carry-on luggage must not exceed 19 inches x 9 inches x 17 inches and weigh less than 50 lb. Baggage rules can differ based on the cabin class and fare type, so double-check your booking or British Airways's website to avoid additional costs at the airport.
Why fly with British Airways from SIN to IAD?
British Airways makes flying from SIN to IAD more enjoyable with an excellent in-flight experience and a 4-star airline rating. You also have the chance to earn points with British Airways Executive Club. Don't forget to join Expedia's free One Key™ rewards program to earn OneKeyCash™*, which can be redeemed on future bookings.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.
Can I change or cancel my British Airways flight from Changi Airport (SIN) to Washington Dulles Intl. Airport (IAD)?
Changes are usually free within 24 hours of making a booking, but your airline may charge you after that time. For more information about altering your reservation, head to your "Trips," select your flight and click on "Manage Booking." If you want the flexibility to change your itinerary without extra charges, tick the "No cancel fee" or "Changes included" filter when planning your trip.

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*Available to One Key members.