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Find cheap United Airlines flights to Singapore

RDU — SIN
Aug 26 — Sep 21
Wed 8/26
Wed 9/2
1 adult, Economy
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Find United Airlines flight deals to Singapore

Cheapest United Airlines flights from USA to Singapore
Explore the most affordable United Airlines flight options available from USA to Singapore. Find the lowest fares with prices last updated on July 27, 2026.

This United Airlines deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/1810:50 pm
SFO
-
SIN
Nonstop16h 25m
United Airlines
Thu 8/278:35 pm
SIN
-
SFO
Nonstop15h 45m
United Airlines
Deal found 7/27$696
This United Airlines deal was found by Cheapflights users on 7/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/211:10 am
SFO
-
SIN
Nonstop16h 25m
United Airlines
Tue 8/188:45 am
SIN
-
SFO
Nonstop15h 45m
United Airlines
Deal found 7/26$697
This United Airlines deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/3110:50 pm
SFO
-
SIN
Nonstop16h 25m
United Airlines
Thu 9/311:05 am
SIN
-
SFO
1 stop37h 40m
United Airlines
Deal found 7/27$707

Flights to Singapore with United Airlines at a glance

Find detailed information about United Airlines flights from USA to Singapore. Explore the options provided by United Airlines to plan your journey from USA to Singapore. Data last updated July 27, 2026.

Popular in

June

Cheapest in

September

Average price

$1,062

Round-trip from

$696

One-way from

$370
Highest demand for flights to Singapore with United Airlines; 18% potential price increase.
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Best time to find cheap flights to Singapore with United Airlines; 3% potential price drop.
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Average price for flights to Singapore with United Airlines (round-trip).
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United Airlines
  • United Airlines
  • 9/7-9/11
  • Nonstop
  • 31h 55m total
  • USA to Singapore
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United Airlines
  • United Airlines
  • 8/6
  • Nonstop
  • 16h 25m total
  • USA to Singapore
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Cheapflights Insights

Find cheap United Airlines flights to Singapore

How long is the flight to Singapore with United Airlines?

On average, United Airlines flights from the United States to Singapore take 17 hours 1 minute. Flights to Singapore from other popular cities in the United States will vary in length. Below are a few examples of popular routes and their flight times.

United Airlines weekly flight availability to Singapore

The most flights to Singapore operated by United Airlines are scheduled on a Monday (2 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (2 on average).

When is the best time to book a flight to Singapore with United Airlines?

The best time to book a flight to Singapore with United Airlines is 79 days before departure. On average, fares are higher if you book 35 days before departure.

FAQs about flights to Singapore with United Airlines

  • Which airport do United Airlines flights arrive at when travelling to Singapore?

    United Airlines flights on this route tend to land at Singapore Changi Airport.

  • Is United Airlines the cheapest airline for a flight to Singapore?

    Flight prices will depend on many factors like date, time and cabin class so it is worth comparing flights before booking. Based on Cheapflights data the cheapest average return price for flights to Singapore tends to be with China Southern.

  • Are there alternative airlines other than United Airlines that fly to Singapore?

    Singapore Airlines, Cathay Pacific and Air Canada all fly to Singapore and offer an alternative to United Airlines.

  • How much is a flight to Singapore with United Airlines?

    The average price for a return flight with United Airlines is $1,285; with a one-way flight around $676.

See more FAQs

Reviews of United Airlines

See what Cheapflights users have to say about their United Airlines experience.
United Airlines
7.4
Good
10,000 reviews
Overview

Food

6.6

Boarding

7.7

Comfort

7.3

Entertainment

7.1

Crew

8.1

Popular United Airlines flights

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Other airports near Changi

Other Singapore travelers fly to these airports near Changi.
Flights to Singapore Seletar Airport