The cheapest times to fly from BWN to IAD are

  • October 8th to November 25th (except the week of October 15th)
  • December 24th to May 6th (except the weeks of January 22nd, January 29th, and March 26th)

based on data collected exclusively by Champion Traveler across tens of millions of flights. Among all the dates above, the very cheapest time to fly from BWN to IAD is mid November. Prices can be as high as $7264 for Wednesday flights during early August, or as low as $1896 for Saturday flights around mid November.


When to Fly to Washington

Flying from Bandar Seri Begawan (BWN) to Washington, DC (IAD) will usually cost between $4255 to $6633 per person if booking more than four weeks in advance. On average the very cheapest time to fly is mid November with an average ticket price of $3741. Due to high demand the most expensive time to fly is early August, with an average price of $5310. Planning your trip to low-cost times can easily save you $1569 on economy flights and even more on first-class flights. Generally, any price below $4487 can be considered a good price for a round-trip BWN to IAD flight.

See below for a graph of average weekly prices for the BWN to IAD route. All prices are for round-trip tickets in USD.

BWN to IAD Flight Prices

Compared to other flights, the BWN to IAD flight is more expensive than the average and costs more than the average flight leaving from Bandar Seri Begawan. The average price per mile (for a direct flight) is $0.3, which is in the normal range for a flight.


Flight Prices by Day of the Week

Saturday is usually the cheapest day to fly to IAD, and Friday the cheapest day to fly back into BWN. Wednesdays are the most expensive days to fly to Washington, and Saturdays are the most expensive days to return to Bandar Seri Begawan. Selecting flights on the least expensive days could save you up to $4740 (44%) on this flight.

Departing prices are for round-trip flights returning on the day of departure. For example, a flight departing on Saturday and returning a week later will cost an average of $4256. Return trip prices are from the IAD to BWN flight, and often highlight the quality of our data in showing the same trend.

Departing Prices by Day

Departure Day Prices

Return Trip Prices by Day

Return Day Prices


Nonstop Flights and Layovers

Travelers looking to fly from BWN to IAD can generally find a 1-layover flight. Because there is not usually a direct flight option the real-world direct flight time of 17 hour 43 minutes may not be realistic.


Alternative Nearby Airports

Champion Traveler tells you which airports are nearby and whether tickets might be cheaper alternative airports nearby. Sometimes it’s worth it to fly into a closer airport and then commute to your destination. Remember that there is not usually a nonstop flight from BWN to IAD while comparing.

Destination alternative #1: Ronald Reagan Washington National Airport (DCA) in Washington, DC

  • 24 miles (39 km) away from IAD
  • Usually 30.15% less expensive than IAD
  • 2-layover flights available

See BWN to DCA flights


Flight Hacking BWN to IAD

Flight hacking is when you book two tickets instead of a layover, sometimes with different airlines. You will need to either bring only a carry-on bag (highly recommended) or leave yourself plenty of time to go through security again. Flight hacking is completely allowed, but airlines don’t always tell you the cheapest way to get from BWN to IAD — but Champion Traveler does!

Hack #1: Hong Kong (BWN > HKG > IAD)

  • Price for both tickets: $1168
  • Average savings: $3320 (73.98%)

See BWN to KUL flights

Hack #2: Kuala Lumpur (BWN > KUL > IAD)

  • Price for both tickets: $1307
  • Average savings: $3181 (70.88%)

See BWN to HKG flights

Hack #3: Manila (BWN > MNL > IAD)

  • Price for both tickets: $1382
  • Average savings: $3106 (69.21%)

See BWN to MNL flights


Flight Questions Answered

Still have questions about flying from BWN to IAD? We’ve got answers.

Which airlines fly this route?

You can find 20 major airlines flying this route most often: Air France, Air India, American, ANA, British Airways, Cathay Pacific, China Airlines, China Eastern, China Southern, Hainan, JAL, KLM, Korean Air, Lufthansa, Malaysia Airlines, Royal Brunei, Singapore Airlines, THAI, Turkish Airlines, United, and potentially more during busy seasons.

How far away is it from Washington Dulles International Airport to Brunei International Airport?

The distance between the two airports is roughly 9301 miles or 14968 kilometers.

How long does it take to fly from BWN to IAD?

The real-world flight time for a nonstop BWN to IAD flight is about 17 hour 43 minutes.

How many flights go between Bandar Seri Begawan and Washington, DC?

It depends on the day of the week and the date, but a typical day might have around 8 available flights from BWN to IAD.


Airport Location Info


Departing Airport

Origination code BWN
Origination airport name Brunei International Airport
City Bandar Seri Begawan
Country Brunei
Latitude 4.9
Longitude 114.9

Return Airport

Destination code IAD
Destination airport name Washington Dulles International Airport
City Washington, DC
Country the United States
Latitude 38.9
Longitude -77.5


Other Resources

Please note that while we’ve worked hard to analyzed tens of millions of flights to get you this data, we do not calculate current live prices or guarantee pricing. Please see our partners using the links above for current offers.