Singapore (SIN) → Washington (IAD)
About Singapore to Washington Flights
Discover the best flights from Singapore to Washington, covering 15,530 km in approximately 19h 55m. Singapore (SIN) to Washington (IAD) is one of the major long-haul routes connecting Singapore and United States. 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 Singapore to Washington.
12-Month Price History
Flight prices from Singapore to Washington vary significantly throughout the year. February typically offers the best deals with average prices around $2831, while July sees the highest prices, averaging $4695. 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
173 days
For best prices
Booking Tips
For the best prices on Singapore to Washington flights, we recommend booking 114 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 |
|---|---|---|---|
Delta Air Lines DL | $4750 | $18040 | $26290 |
Air France AF | $5360 | $17920 | $27350 |
United Airlines UA | $5640 | $17450 | $28870 |
American Airlines AA | $5810 | $18510 | $27740 |
British Airways BA | $5820 | $17970 | $26180 |
Scoot TR | $5820 | $16340 | $24390 |
Singapore Airlines SQ | $6360 | $21730 | $41610 |
Delta Air Lines
DL
Economy
$4750
Business
$18040
First
$26290
Air France
AF
Economy
$5360
Business
$17920
First
$27350
United Airlines
UA
Economy
$5640
Business
$17450
First
$28870
American Airlines
AA
Economy
$5810
Business
$18510
First
$27740
British Airways
BA
Economy
$5820
Business
$17970
First
$26180
Scoot
TR
Economy
$5820
Business
$16340
First
$24390
Singapore Airlines
SQ
Economy
$6360
Business
$21730
First
$41610
Prices shown are estimates based on historical data. Actual prices may vary based on dates, availability, and current promotions.
Alternative Flight Options
Singapore → Washington
Singapore Changi (SIN) to Ronald Reagan Washington National (DCA)
Distance: 15,542 km
Average price: $3161
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Frequently Asked Questions
How long is the flight from Singapore to Washington?
The flight time from Singapore (SIN) to Washington (IAD) 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 Singapore and Washington?
The aerial distance between Singapore and Washington is 15,530 kilometers (9,650 miles). This is the straight-line distance, which is used to calculate flight times.
Which airlines fly from Singapore to Washington?
Several airlines operate flights between Singapore and Washington, 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 Singapore to Washington?
Based on historical data, February typically offers the lowest airfares for flights from Singapore to Washington. 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 Washington?
For the best prices on Singapore to Washington flights, we recommend booking 122 days in advance. International flights generally require earlier booking than domestic routes.
Do I need a visa to travel from Singapore to Washington?
Visa requirements depend on your nationality and the purpose of your visit. Citizens of Singapore traveling to United States should check the latest visa requirements. Visit our partner site visarequirements.io for detailed visa information.
What is the time difference between Singapore and Washington?
Singapore operates on Asia/Singapore time zone, while Washington is in the America/New_York time zone. For current time differences and to plan your schedule, visit our partner site timezig.com for accurate timezone conversions.