DullesSingapore, Singapore

Flights from Dulles to Singapore

Fares, airlines, flight time and both airports for IADSIN.

From $523 one-way · seen 11 Sept 2026
About 19h 55m flying time
15,532 kmdistance
~19h 55mflying time
from $523one-way, 1 stop, seen 11 Sept 2026
Ultra long-haulroute

Route snapshot: Dulles to Singapore

Dulles (IAD) to Singapore (SIN) is 15,532 km in a straight line, the equivalent of about 19h 55m in the air; we have not seen a nonstop fare on this pair. The lowest one-way fare seen recently was $523 with Turkish Airlines (1 stop), departing 5 Apr 2027 — as of 11 Sept 2026.

Check fares, see which airlines fly this route, and sort out airports, visas, and what to do at the destination — all before you book.

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Why travelers watch this route

Fares seen

The lowest one-way fare seen was $523 with Turkish Airlines (1 stop), departing 5 Apr 2027. Checked 11 Sept 2026 — fares move daily.

Seasonality

Singapore demand usually strengthens around February – August, which can push fares higher on this corridor.

Who flies it

We have not confirmed a nonstop carrier on IADSIN; most travellers connect through a hub.

Airlines flying Dulles to Singapore

We have not confirmed which airlines fly IADSIN nonstop. Search the route to see every carrier selling it today, including connections.

DullesSingapore route intelligence

Updated analysis of the IADSIN corridor — distance, fares, timing, and connecting options.

Route class
Distance varies by routing
Fares from
$150 – $800

Route profile

Dulles (IAD) to Singapore (SIN) is a distance varies by routing corridor. Published fares cluster between $150 and $800 in economy. International.

Best time to book

Booking 6-8 weeks ahead generally lands the best fare on this route.

Demand-spike calendar: Singapore Airshow (alternating Februarys), Formula 1 (September), and the Lunar New Year window are the predictable price events. Business travel from London/SFO holds fares high mid-week year-round.

Visa & arrival

Passport-validity and visa requirements differ between and Singapore — most arriving travellers need at least six months of remaining passport validity. Check AirConnect's visa checker for your nationality before booking, especially if you plan to connect through a third country en route.

Best time to fly to Singapore

Based on weather and travel conditions in Singapore

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Best monthsGoodAvoid if possible

Singapore is a year-round destination. February–August sees the least rainfall. The northeast monsoon (December–March) brings more rain, but showers are typically short.

Peak season: February – August

Direct & Connecting Flights

We have not seen a nonstop fare between Dulles (IAD) and Singapore (SIN), so most itineraries connect through a hub.

Fares & Price Guide

The lowest one-way fare seen on IAD–SIN was $523 USD (1 stop) as of 11 Sept 2026. Set a fare alert to be told when it drops.

About Singapore, Singapore

Flights arrive at Singapore Changi Airport (SIN). Best visited during February – August. See the destination guide for hotels, visa requirements and travel tips.

Plan this route beyond the fare

Use the wider AirConnect network to move from a route check into airports, airlines, visa, and trip planning.

Explore related route clusters

These hubs help search engines and travelers understand where this corridor sits in the wider route graph.

Deals on Dulles → Singapore

Limited-time offers — grab them before they're gone

Frequently asked questions — Dulles to Singapore flights

Ready to book IADSIN?

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