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Cheap flights from Denver to Singapore from S$ 645

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12-5. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — SIN
21 Apr — 28 Apr1
1 adult

Cheap flight deals from Denver to Singapore

Discover tips and strategies to find the most affordable flight options for your journey from Denver (DEN) to Singapore (SIN). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 16 April 2025.

Round-trip from

S$ 1,140

One-way from

S$ 645

Popular in

August

Cheapest in

September

Average price

S$ 1,504
Air Canada
  • Air Canada
  • 4-10-16-10
  • 3 total stops
  • 67h 11m total
  • Denver to Singapore
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12-5
  • 12-5
  • 3 total stops
  • 44h 45m total
  • Denver to Singapore
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Highest demand for flights based on searches. 10% potential increase in price (S$ 270 potential increase over avg. return price).
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Cheapest flight prices on average. 3% potential price decrease (S$ 87 potential savings vs. average return price).
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Average for round-trip flights in April 2025
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Find flight deals from Denver to Singapore

Cheapest flights from Denver to Singapore
Explore the most affordable flight options available from Denver to Singapore. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 16 April 2025.

Sat 4-1019:17DEN - SIN
2 stops45h 48mAir Canada
Thu 16-1009:10SIN - DEN
1 stop21h 23mAir Canada
Deal found 15-4S$ 1,140
Sat 4-1019:50DEN - SIN
1 stop32h 05mTurkish Airlines
Thu 16-1010:15SIN - DEN
1 stop45h 40mTurkish Airlines
Deal found 15-4S$ 1,206
Fri 17-1017:42DEN - SIN
2 stops35h 13mPhilippine Airlines
Fri 24-1000:20SIN - DEN
2 stops30h 52mPhilippine Airlines
Deal found 15-4S$ 1,276
Tue 20-505:20DEN - SIN
1 stop23h 05mUnited Airlines
Mon 2-608:45SIN - DEN
1 stop20h 15mUnited Airlines
Deal found 15-4S$ 1,439
Sat 4-1007:00DEN - SIN
2 stops39h 35mChina Airlines
Wed 15-1002:00SIN - DEN
2 stops58h 39mChina Airlines
Deal found 15-4S$ 1,525
Fri 12-906:20DEN - SIN
2 stops28h 00mJapan Airlines
Sat 27-901:55SIN - DEN
2 stops29h 24mJapan Airlines
Deal found 15-4S$ 1,564
Fri 2-512:15DEN - SIN
3 stops28h 50mMultiple Airlines
Sun 18-520:45SIN - DEN
2 stops34h 42mMultiple Airlines
Deal found 15-4S$ 1,589
Thu 1-506:30DEN - SIN
2 stops27h 10mKorean Air
Fri 16-507:30SIN - DEN
2 stops28h 17mKorean Air
Deal found 15-4S$ 1,651
Fri 4-708:02DEN - SIN
2 stops26h 43mANA
Fri 22-806:15SIN - DEN
2 stops25h 35mANA
Deal found 15-4S$ 1,920
Fri 4-709:03DEN - SIN
2 stops30h 27mCathay Pacific
Thu 21-801:50SIN - DEN
2 stops29h 59mCathay Pacific
Deal found 15-4S$ 1,971
Fri 2-523:59DEN - SIN
2 stops31h 01mQatar Airways
Sat 17-503:10SIN - DEN
2 stops34h 55mQatar Airways
Deal found 15-4S$ 1,979
Wed 21-506:40DEN - SIN
2 stops32h 45mChina Eastern
Wed 28-500:55SIN - DEN
2 stops31h 24mChina Eastern
Deal found 15-4S$ 2,009

Cheapflights Fare Finder

Customise your flight search to find flights from Denver to Singapore that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 200,618 searches. Data last updated 16 April 2025.
Use the filters below to find and compare flights from Denver to Singapore that are best for you.

Fly from

Denver

Fly to

Singapore

Route

Depart

Return

Price

DenverSingapore

DEN - SIN

DENSIN

Denver Intl

Sat 4-10

19:17-07:05

2 stops45h 48m

Singapore Changi

Thu 16-10

09:10-16:33

1 stop21h 23m

S$ 1,140

DenverSingapore

DEN - SIN

DENSIN

Denver Intl

Sat 4-10

19:50-17:55

1 stop32h 05m

Singapore Changi

Thu 16-10

10:15-17:55

1 stop45h 40m

S$ 1,206

DenverSingapore

DEN - SIN

DENSIN

Denver Intl

Tue 20-5

05:20-18:25

1 stop23h 05m

Singapore Changi

Mon 2-6

08:45-15:00

1 stop20h 15m

S$ 1,439

DenverSingapore

DEN - SIN

DENSIN

Denver Intl

Sat 4-10

07:00-12:35

2 stops39h 35m

Singapore Changi

Wed 15-10

02:00-22:39

2 stops58h 39m

S$ 1,525

DenverSingapore

DEN - SIN

DENSIN

Denver Intl

Fri 12-9

06:20-00:20

2 stops28h 00m

Singapore Changi

Sat 27-9

01:55-17:19

2 stops29h 24m

S$ 1,564

DenverSingapore

DEN - SIN

DENSIN

Denver Intl

Fri 2-5

12:15-07:05

3 stops28h 50m

Singapore Changi

Sun 18-5

20:45-17:27

2 stops34h 42m

S$ 1,589

DenverSingapore

DEN - SIN

DENSIN

Denver Intl

Thu 1-5

06:30-23:40

2 stops27h 10m

Singapore Changi

Fri 16-5

07:30-21:47

2 stops28h 17m

S$ 1,651

DenverSingapore

DEN - SIN

DENSIN

Denver Intl

Fri 4-7

08:02-00:45

2 stops26h 43m

Singapore Changi

Fri 22-8

06:15-17:50

2 stops25h 35m

S$ 1,920

DenverSingapore

DEN - SIN

DENSIN

Denver Intl

Fri 4-7

09:03-05:30

2 stops30h 27m

Singapore Changi

Thu 21-8

01:50-17:49

2 stops29h 59m

S$ 1,971

DenverSingapore

DEN - SIN

DENSIN

Denver Intl

Fri 2-5

23:59-21:00

2 stops31h 01m

Singapore Changi

Sat 17-5

03:10-00:05

2 stops34h 55m

S$ 1,979

Flights are sorted by cheapest return flights first.

Deals found on 16-4

Showing 1-10 of 26 results
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2
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Best time to book a flight from Denver to Singapore

Have a flexible travel schedule? Discover the best time to fly to Singapore from Denver with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Denver to Singapore

How far ahead should I book a flight from Denver to Singapore?

Use this chart to determine the optimal time to book a return flight from Denver to Singapore. Price data was last updated on 11 April 2025.

The price you pay for your flight from Denver to Singapore may vary depending on when you book. For the best chance of a lower fare, look to book 4 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

Rainfall in Singapore by month

Plan your trip to Singapore by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Singapore ranges from 150.0 - 269.0 inches per month. December is typically the wettest month, when rainfall can reach 269.0 mm. July is typically the driest time to visit Singapore when rainfall is around 150.0 mm.

Temperature in Singapore by month

Plan your trip to Singapore by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Singapore, use this chart to help with planning. For those seeking warmer temperatures, March is the ideal time of year to visit, when temperatures reach an average of 28.0 C. Travellers hoping to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 26.0 C).

Reviews of airlines servicing Singapore

Get insights into the airlines that provide service to Singapore. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Singapore. Reviews last updated 16 April 2025.
Korean Air
8.4
Very Good
1,063 reviews
Check prices

Boarding

8.5

Comfort

8.3

Entertainment

8.2

Overall

8.4

Crew

8.7

Food

8.1

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
Korean Air
8.4
Very Good
1,063 reviews
Korean Air
8.4
Very Good
1,063 reviews
Check prices

Boarding

8.5

Comfort

8.3

Entertainment

8.2

Overall

8.4

Crew

8.7

Food

8.1

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
Japan Airlines
8.3
Very Good
1,440 reviews
Korean Air
8.4
Very Good
1,063 reviews
Check prices

Boarding

8.5

Comfort

8.3

Entertainment

8.2

Overall

8.4

Crew

8.7

Food

8.1

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
ANA
8.3
Very Good
844 reviews
Korean Air
8.4
Very Good
1,063 reviews
Check prices

Boarding

8.5

Comfort

8.3

Entertainment

8.2

Overall

8.4

Crew

8.7

Food

8.1

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
China Airlines
8.2
Very Good
729 reviews
Korean Air
8.4
Very Good
1,063 reviews
Check prices

Boarding

8.5

Comfort

8.3

Entertainment

8.2

Overall

8.4

Crew

8.7

Food

8.1

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
Singapore Airlines
8.1
Very Good
1,288 reviews
Korean Air
8.4
Very Good
1,063 reviews
Check prices

Boarding

8.5

Comfort

8.3

Entertainment

8.2

Overall

8.4

Crew

8.7

Food

8.1

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.

Related info for your journey

Find useful and relevant information for your journey from Denver to Singapore. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What are the cheapest airlines flying from Denver to Singapore round-trip?

    Flying on Air Canada is currently your cheapest option to Singapore, with prices starting at S$ 1,140. Additional round-trip tickets that might be worth considering are offered by Turkish Airlines and United Airlines, with the lowest prices starting at S$ 1,206 and S$ 1,439, respectively. Air Canada is 36% cheaper than the average price of flights available within the next 90 days to this destination.

  • What are the cheapest airlines to fly from Denver to Singapore one-way?

    The cheapest airline one-way is Air Canada, with whom users have recently found tickets for as low as S$ 653. However, be on the lookout for offers from United Airlines and Delta, as they are both options that can get you from Denver to Singapore for a low price.

  • Can I find deals for flights from Denver to Singapore that include hotel bookings?

    Yes. In addition to deals on Denver to Singapore flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Denver to Singapore?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Denver to Singapore.

  • Can I find deals for business class flights from Denver to Singapore?

    Yes. Cheapflights offers flight deals from Denver to Singapore by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

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Yes, Cheapflights offers price alerts on Denver to Singapore flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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