Cheap flights from the United States to anywhere

The cheapest routes to Singapore can be found at San Francisco airport from S$ 942. While Los Angeles airport is usually cheaper if your destination is Singapore with prices starting at S$ 1,003. Reference our flight search to find the best deals in real time.

Currently, the cheapest month for flights from USA is April. The most expensive month for flights is December. The cheapest prices are shown above but prices will vary according to departure times, airlines, class and how early you book.

View the cheapest flight destinations from USA:
Fly from San Francisco to Singapore from S$ 942 round trip

Deals for flights from USA are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose to your preference, such as price, airport, cabin class, and plenty of other options.

Cheapflights helps you find that perfect flight from USA by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

Yes, we can. To see specific flights from USA with no change fees, users can toggle flexible booking options after using the search form above to find flights.

Yes, Cheapflights has a feature called Price Alerts, which offers users the ability to be notified when flight prices change. Track prices for your flight from USA today and book when you’re ready!