SIN - DEN

S$ 678 Find Cheap Flights from Singapore to Denver

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Singapore to Denver departing on 2-2. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Denver

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Singapore to Denver, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Singapore to Denver, as well as popular online travel agencies
Travellers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Track pricesNot ready to book? Create a price alert for when prices drop.

Free to useThere are no hidden charges or fees.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Everything you should know

Cheapest return fare
S$ 1,067
Typical prices: S$ 1,113-S$ 1,186
United Airlines
Wed 25-2Thu 26-2
SIN - DEN • 1 stop
Cheapest one-way flight
S$ 634
Typical prices: S$ 911-S$ 1,227
Multiple Airlines
Mon 2-2
SIN - DEN • 3 stops
Top airlines
United Airlines
Cheapest • from S$ 1,067 (return)
United Airlines
Best reviews • 7.4 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to book
3 weeks
in advance
Our data shows that travellers who book at least 3 weeks in advance save around 14% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
September
Cheapest • 17% price drop
May
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
KAYAK searches hundreds of sites at once to find you the best travel deals.
We hope you love your trip to Denver!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Singapore to Denver (SIN-DEN)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from Singapore to Denver that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals from Singapore to Denver

Wed, 25 Feb - Thu, 26 Feb
United Airlines Logo
22:20 - 16:34
SIN
-
DEN
33h 14m
1 stop
United Airlines Logo
19:35 - 20:15
DEN
-
SIN
33h 40m
2 stops
S$ 1,067United Airlines
Wed, 25 Feb - Thu, 26 Feb
United Airlines Logo
22:20 - 16:34
SIN
-
DEN
33h 14m
1 stop
United Airlines Logo
19:35 - 20:15
DEN
-
SIN
33h 40m
2 stops
S$ 1,068United Airlines
Mon, 9 Feb - Thu, 12 Feb
United Airlines Logo
06:35 - 12:10
SIN
-
DEN
20h 35m
1 stop
United Airlines Logo
05:20 - 20:15
DEN
-
SIN
23h 55m
1 stop
S$ 1,128United Airlines
Mon, 23 Feb - Thu, 26 Feb
United Airlines Logo
22:20 - 12:18
SIN
-
DEN
28h 58m
1 stop
United Airlines Logo
09:47 - 08:00
DEN
-
SIN
31h 13m
2 stops
S$ 1,175United Airlines
Fri, 13 Feb - Sun, 22 Feb
United Airlines Logo
10:10 - 14:52
SIN
-
DEN
19h 42m
1 stop
United Airlines Logo
13:45 - 08:00
DEN
-
SIN
27h 15m
2 stops
S$ 1,224United Airlines
Tue, 17 Feb - Thu, 19 Feb
United Airlines Logo
10:10 - 10:17
SIN
-
DEN
39h 07m
1 stop
United Airlines Logo
07:49 - 08:00
DEN
-
SIN
33h 11m
2 stops
S$ 1,248United Airlines
Mon, 23 Feb - Tue, 3 Mar
Lufthansa Logo
02:45 - 13:40
SIN
-
DEN
25h 55m
1 stop
Lufthansa Logo
15:55 - 06:50
DEN
-
SIN
23h 55m
1 stop
S$ 1,262Lufthansa
Mon, 23 Feb - Tue, 3 Mar
Lufthansa Logo
02:45 - 13:40
SIN
-
DEN
25h 55m
1 stop
Lufthansa Logo
11:15 - 06:50
DEN
-
SIN
28h 35m
2 stops
S$ 1,267Lufthansa
Tue, 24 Feb - Tue, 3 Mar
EVA Air Logo
13:15 - 17:20
SIN
-
DEN
43h 05m
2 stops
EVA Air Logo
12:34 - 12:05
DEN
-
SIN
32h 31m
2 stops
S$ 1,270EVA Air
Tue, 24 Feb - Thu, 26 Feb
United Airlines Logo
22:20 - 18:23
SIN
-
DEN
35h 03m
1 stop
United Airlines Logo
11:15 - 20:15
DEN
-
SIN
42h 00m
2 stops
S$ 1,301United Airlines
Booking Insights

KAYAK's insights & trends for Singapore to Denver flights

Get data-powered insights and trends into flights from Singapore to Denver to help you find the cheapest flights, the best time to fly and much more.

How much is a return flight from Singapore to Denver?

This analysis is based on the cheapest return trip price found on KAYAK in the last 12 months by searching for a flight from Singapore to Denver departing in February.

What is the cheapest month to fly from Singapore to Denver?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Singapore to Denver, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Singapore to Denver is September, where tickets cost S$ 1,149 (return) on average. On the other hand, the most expensive months are July and January, where the average cost of round-trip tickets is S$ 2,257 and S$ 1,537 respectively.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Singapore to Denver, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Singapore to Denver, you should book around 3 weeks before departure, which saves you about 14% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 9 weeks before departure.

Good to know

Low seasonJuly
Cheapest flightS$ 634
Best time to beat the crowds but there is an average 62% increase in price.
Most popular time to fly and prices are also 3% lower on average.
Flight from Singapore to Denver

When to book flights from Singapore to Denver

Are your dates flexible? Find out the best times to travel from Singapore to Denver based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated return price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or returns with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Singapore to Denver

  • What is the cheapest flight from Singapore to Denver?

    In the last 3 days, the lowest price for a flight from Singapore to Denver was S$ 634 for a one-way ticket and S$ 1,067 for a return.

  • Which airports will I be using when flying from Singapore to Denver?

    Singapore and Denver are both served by 1 main airport. You will leave Singapore from Singapore Changi and will be arriving at Denver Intl.

  • Which aircraft models fly most regularly from Singapore to Denver?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Singapore to Denver?

    Star Alliance is the only airline alliance operating flights between Singapore and Denver.

  • Which is the best airline for flights from Singapore to Denver, United Airlines or Air Canada?

    The two airlines most popular with KAYAK users for flights from Singapore to Denver are United Airlines and Air Canada. With an average price for the route of S$ 1,302 and an overall rating of 7.4, United Airlines is the most popular choice. Air Canada is also a great choice for the route, with an average price of S$ 1,210 and an overall rating of 7.1.

  • How does KAYAK find such low prices on flights from Singapore to Denver?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Singapore to Denver.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Singapore to Denver?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Denver from Singapore is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Singapore to Denver?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly to Denver with an airline and back to Singapore with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Singapore to Denver?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Denver from Singapore up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airlines flying from Singapore to Denver

 
See real verified KAYAK customer reviews for airlines flying from Singapore to Denver. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Singapore to Denver? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.4
United AirlinesOverall score based on 9212 reviews
7.1Entertainment
6.6Food
7.7Boarding
7.3Comfort
8.1Crew
Airline reviews

I just think it’s unfortunate that Airlines have completely abandoned the idea of serving any kind of decent or even real food on flights, not even on a four hour flight!? Those days are gone, I guess.

8.0 ExcellentAnonymous, Jan 2026
SJD - DEN
Read more United Airlines reviews

I just think it’s unfortunate that Airlines have completely abandoned the idea of serving any kind of decent or even real food on flights, not even on a four hour flight!? Those days are gone, I guess.

The flight was delayed by two de-icings. The seatbelt did not work correctly. It did not stay tight.

Hotter than Hades in August. Why, why do crews think that in the winter when we are already dressed for cold weather we need a cabin that is 82 degrees. Even the vents were blowing hot air.

Flight was delayed. De-icing took a while. When we landed had to wait for another plane to vacate our gate. Just an overall bad experience.

Not good - outbound flight was delayed and missed my connection even though I got to the gate after running through the airport - the agent would not let me on because the door was closed (flight had not left). There was no notification from United - overall experience was very disappointing. Additionally, I was downgraded from first class to coach on the alternative flight

United have really come back. Airport and boarding process is clear and good, app and information also very good

We Left Calgary 1/2 hour late and that made for a tight connection in Denver. After arriving everything was done to help us make our connection. That was a great effort. Thank You United

The entertainment available didn’t work for anyone on the flight. Long 6 hr flight with no entertainment option and the staff didn’t know until an hour into the flight when we made sure they knew about it. They had no way to fix it.

Late FA meant slow boarding. WiFi did not work. I’m a medium plus sized passenger. The seatbelt was for the first time ever barely fitting. And we delayed on the tarmac 40 min

My husband and I had boarded the flight from Denver to Chicago, and one of the last passengers to get on the plane opened the overhead bin above my husband's seat and threw his bag out of the bin to make space for his own. He said, "Mine is bigger!" The flight attendant supported the new passenger. They didn't care that my husband has two artificial knees and must have the foot room in front of his seat to be able to fit his legs in -- and to be able to stand, much less walk, at the end of the flight. I have never seen this happen before, and it was a disaster.

Air Canada’s problems are not staff related by and large, no. The problem is tiny jets between the U.S. and Canada - yes, believe it or not they are still “international” (just ask our own Mango Maniac in power in the U.S.). The little aisle is compounded by a design flaw of a “dog leg” starting at seat 12. Woe be unto you if you sit here as passengers and attendants do not have sufficient room to not hit you in the face with backpacks. One thing I will say very positively about Air Canada is you still provide pillows and blankets on transcontinental flights to all, not just the elites. Your tiny improperly designed jets are also a problem flying city to city within Canada also. One can only say you remind us of a “Jet Blue” or “Spirit” experience. Also your luggage space is downright Byzantine! We will endeavor to avoid you and use other U.S. carriers, albeit charging more.

Terrible canceled flight and lost my luggage. Flew me to Halifax. Tgat flight was delayed, had to spend night in airport chair.

Better entertainment & food options more may be adding chicken option or on vegetarian side good quality pasta

My seat was not comfortable. Flight was smooth. Regretfully we had two delays before takeoff

Amazing service, with enthusiastic crew members, and some breathtaking views of Vancouver. No IFE though, as it is only a 1 hour flight on a regional Turboprop jet.

They are very proactive and made our boarding easy and always notified us about any changes well in advance.

My seat was covered in vomit and I will be reaching out to Air Canada

It's kindof ridiculous that your system is even asking me about this since my flight was canceled and I wasn't rescheduled.

3 hr delay at the gate while they were doing maintenance. Next time, do not board passengers while maintenance is being performed

Digital check in is very poor with air canada compaired to other airlines

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

Information on your arrival and departure airports