Washington (IAD) → Singapore (SIN)
About Washington to Singapore Flights
Discover the best flights from Washington to Singapore, covering 15,530 km in approximately 19h 55m. Washington (IAD) to Singapore (SIN) is one of the major long-haul routes connecting United States and Singapore. With 7 major airlines operating this route, 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 Singapore.
12-Month Price History
Flight prices from Washington to Singapore vary significantly throughout the year. February typically offers the best deals with average prices around $2850, while July sees the highest prices, averaging $4753. Savvy travelers can save up to 40% 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
165 days
For best prices
Booking Tips
For the best prices on Washington to Singapore flights, we recommend booking 109 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 |
|---|---|---|---|
American Airlines AA | $4450 | $16990 | $25430 |
Scoot TR | $4880 | $17320 | $24690 |
Delta Air Lines DL | $5070 | $20810 | $31420 |
British Airways BA | $5520 | $18520 | $27260 |
United Airlines UA | $5700 | $15830 | $30430 |
Air France AF | $5740 | $19860 | $30610 |
Singapore Airlines SQ | $5930 | $21250 | $37980 |
American Airlines
AA
Economy
$4450
Business
$16990
First
$25430
Scoot
TR
Economy
$4880
Business
$17320
First
$24690
Delta Air Lines
DL
Economy
$5070
Business
$20810
First
$31420
British Airways
BA
Economy
$5520
Business
$18520
First
$27260
United Airlines
UA
Economy
$5700
Business
$15830
First
$30430
Air France
AF
Economy
$5740
Business
$19860
First
$30610
Singapore Airlines
SQ
Economy
$5930
Business
$21250
First
$37980
Prices shown are estimates based on historical data. Actual prices may vary based on dates, availability, and current promotions.
Alternative Flight Options
Washington → Singapore
Ronald Reagan Washington National (DCA) to Singapore Changi (SIN)
Distance: 15,542 km
Average price: $3161
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Frequently Asked Questions
How long is the flight from Washington to Singapore?
The flight time from Washington (IAD) to Singapore (SIN) is approximately 19 hours and 55 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 Singapore?
The aerial distance between Washington and Singapore is 15,530 kilometers (9,650 miles). This is the straight-line distance, which is used to calculate flight times.
Which airlines fly from Washington to Singapore?
Several airlines operate flights between Washington and Singapore, including United Airlines, Singapore Airlines, Scoot and 4 more airlines. Most flights on this route include one or more stops.
What is the cheapest month to fly from Washington to Singapore?
Based on historical data, February typically offers the lowest airfares for flights from Washington to Singapore. 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 Singapore?
For the best prices on Washington to Singapore flights, we recommend booking 105 days in advance. International flights generally require earlier booking than domestic routes.
Do I need a visa to travel from Washington to Singapore?
Visa requirements depend on your nationality and the purpose of your visit. Citizens of United States traveling to Singapore should check the latest visa requirements. Visit our partner site visarequirements.io for detailed visa information.
What is the time difference between Washington and Singapore?
Washington operates on America/New_York time zone, while Singapore is in the Asia/Singapore time zone. For current time differences and to plan your schedule, visit our partner site timezig.com for accurate timezone conversions.