Cheap flights from Sioux City to Denver (SUX - DEN) from $111

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 4/2. 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.
SUX — DEN
Feb 25 — Mar 31

The best prices from Sioux City Sioux Gateway to Denver Intl are usually found in April or February, booked 73 days in advance, depart on a Tuesday or Friday and return on a Tuesday

How to find the cheapest flight from Sioux City (SUX) to Denver (DEN)

Discover tips and strategies to find the most affordable flight options for your journey from Sioux City (SUX) to Denver (DEN). 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 February 20, 2024.

Popular in

November

Cheapest in

April

Round-trip from

$194

One-way from

$111
High demand for flights, 27% potential price rise
Best time to find cheap flights, 27% potential price drop
From Sioux City Sioux Gateway to Denver Intl
One-way flight from Sioux City Sioux Gateway to Denver Intl

What is the cheapest day to fly round-trip from Sioux City to Denver?

Tuesday flights are found to be more expensive to fly from Sioux City to Denver. This shouldn’t discourage you from searching, as you can still find great deals by being flexible with your options. Use our search form to find deals on tickets to Denver.

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

To save up to 62% on this flight, we recommend booking at least 24 days prior to travel. The price may fluctuate and will likely increase closer to your departure date. Users on Cheapflights have found tickets from Sioux City to Denver from $241 1-2 weeks out and tickets from $344 for flights departing within the next 72 hours.

What is the cheapest month to fly from Sioux City to Denver?

Our data shows that April tends to be the cheapest month to fly to Denver from Sioux City. Users have commonly found prices around $272 for the month, but tickets can be as low as $198. Due to multiple factors, prepare for potentially higher prices in November.

When is the cheapest time to fly from Sioux City to Denver (SUX - DEN)?

When flying from Sioux City to Denver, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Cheap United Airlines flights from Sioux City to Denver

Explore cheap flight options specifically provided by United Airlines for the route between Sioux City and Denver. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 3,394,020 searches. Data last updated February 20, 2024.
Sat 3/306:00 amSUX - DEN
Nonstop2h 03mUnited Airlines
Sat 4/138:15 amDEN - SUX
Nonstop1h 34mUnited Airlines
Deal found 2/20$219
Tue 4/212:06 pmSUX - DEN
Nonstop1h 44mUnited Airlines
Sat 4/138:15 amDEN - SUX
Nonstop1h 34mUnited Airlines
Deal found 2/20$230
Sat 4/2012:06 pmSUX - DEN
Nonstop1h 44mUnited Airlines
Wed 4/248:15 amDEN - SUX
Nonstop1h 34mUnited Airlines
Deal found 2/18$273
Wed 2/285:50 amSUX - DEN
Nonstop2h 03mUnited Airlines
Sat 3/29:05 pmDEN - SUX
Nonstop1h 37mUnited Airlines
Deal found 2/19$313
Sat 3/301:04 pmSUX - DEN
1 stop18h 38mUnited Airlines
Sat 4/138:15 amDEN - SUX
Nonstop1h 34mUnited Airlines
Deal found 2/20$320
Tue 4/3012:06 pmSUX - DEN
Nonstop1h 44mUnited Airlines
Sat 5/48:55 pmDEN - SUX
1 stop24h 54mUnited Airlines
Deal found 2/19$327
Tue 4/212:06 pmSUX - DEN
Nonstop1h 44mUnited Airlines
Sat 4/137:50 amDEN - SUX
1 stop13h 59mUnited Airlines
Deal found 2/20$338
Sat 3/236:00 amSUX - DEN
Nonstop2h 03mUnited Airlines
Sun 3/248:55 pmDEN - SUX
Nonstop1h 37mUnited Airlines
Deal found 2/19$345
Tue 4/307:24 amSUX - DEN
2 stops17h 20mUnited Airlines
Sat 5/48:15 amDEN - SUX
Nonstop1h 34mUnited Airlines
Deal found 2/19$351

Cheap Sioux City to Denver flights in February & March 2024

Find cheap flight options from Sioux City to Denver specifically for the months of February and March 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 3,394,020 searches. Prices were last updated on February 20, 2024.
Sat 3/306:00 amSUX - DEN
Nonstop2h 03mUnited Airlines
Sat 4/138:15 amDEN - SUX
Nonstop1h 34mUnited Airlines
Deal found 2/20$219
Wed 2/285:50 amSUX - DEN
Nonstop2h 03mUnited Airlines
Sat 3/29:05 pmDEN - SUX
Nonstop1h 37mUnited Airlines
Deal found 2/19$313
Sat 3/301:04 pmSUX - DEN
1 stop18h 38mUnited Airlines
Sat 4/138:15 amDEN - SUX
Nonstop1h 34mUnited Airlines
Deal found 2/20$320
Sat 3/236:00 amSUX - DEN
Nonstop2h 03mUnited Airlines
Sun 3/248:55 pmDEN - SUX
Nonstop1h 37mUnited Airlines
Deal found 2/19$345
Sat 3/306:00 amSUX - DEN
Nonstop2h 03mUnited Airlines
Sat 4/139:41 amDEN - SUX
2 stops12h 08mUnited Airlines
Deal found 2/20$357
Wed 2/285:50 amSUX - DEN
Nonstop2h 03mUnited Airlines
Wed 3/69:05 pmDEN - SUX
Nonstop1h 37mUnited Airlines
Deal found 2/19$408
Sat 3/166:00 amSUX - DEN
Nonstop2h 03mUnited Airlines
Sun 3/178:55 pmDEN - SUX
Nonstop1h 37mUnited Airlines
Deal found 2/19$410
Wed 2/285:50 amSUX - DEN
Nonstop2h 03mUnited Airlines
Wed 3/68:00 amDEN - SUX
1 stop27h 29mUnited Airlines
Deal found 2/19$420
Wed 2/285:50 amSUX - DEN
Nonstop2h 03mUnited Airlines
Wed 3/65:45 pmDEN - SUX
2 stops17h 44mUnited Airlines
Deal found 2/19$428

Sioux City to Denver 2024 flight deals

Discover exclusive flight deals for travel between Sioux City and Denver in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 3,394,020 searches. Data last updated February 20, 2024.
Sat 3/306:00 amSUX - DEN
Nonstop2h 03mUnited Airlines
Sat 4/138:15 amDEN - SUX
Nonstop1h 34mUnited Airlines
Deal found 2/20$219
Tue 4/212:06 pmSUX - DEN
Nonstop1h 44mUnited Airlines
Sat 4/138:15 amDEN - SUX
Nonstop1h 34mUnited Airlines
Deal found 2/20$230
Sat 4/2012:06 pmSUX - DEN
Nonstop1h 44mUnited Airlines
Wed 4/248:15 amDEN - SUX
Nonstop1h 34mUnited Airlines
Deal found 2/18$273
Wed 2/285:50 amSUX - DEN
Nonstop2h 03mUnited Airlines
Sat 3/29:05 pmDEN - SUX
Nonstop1h 37mUnited Airlines
Deal found 2/19$313
Sat 3/301:04 pmSUX - DEN
1 stop18h 38mUnited Airlines
Sat 4/138:15 amDEN - SUX
Nonstop1h 34mUnited Airlines
Deal found 2/20$320
Tue 4/3012:06 pmSUX - DEN
Nonstop1h 44mUnited Airlines
Sat 5/48:55 pmDEN - SUX
1 stop24h 54mUnited Airlines
Deal found 2/19$327
Tue 4/212:06 pmSUX - DEN
Nonstop1h 44mUnited Airlines
Sat 4/137:50 amDEN - SUX
1 stop13h 59mUnited Airlines
Deal found 2/20$338
Sat 3/236:00 amSUX - DEN
Nonstop2h 03mUnited Airlines
Sun 3/248:55 pmDEN - SUX
Nonstop1h 37mUnited Airlines
Deal found 2/19$345
Tue 4/307:24 amSUX - DEN
2 stops17h 20mUnited Airlines
Sat 5/48:15 amDEN - SUX
Nonstop1h 34mUnited Airlines
Deal found 2/19$351

Non-stop flights to Denver from Sioux City

Discover non-stop flight options from Sioux City to Denver. Find direct flights with no layovers, providing a convenient travel experience. Explore non-stop flight options based on user searches, and compare prices and availability for your desired travel dates. Over the last 7 days, Cheapflights users made 3,394,020 searches. Data last updated February 20, 2024.
Sat 3/306:00 amSUX - DEN
Nonstop2h 03mUnited Airlines
Sat 4/138:15 amDEN - SUX
Nonstop1h 34mUnited Airlines
Deal found 2/20$219
Tue 4/212:06 pmSUX - DEN
Nonstop1h 44mUnited Airlines
Sat 4/138:15 amDEN - SUX
Nonstop1h 34mUnited Airlines
Deal found 2/20$230
Sat 4/2012:06 pmSUX - DEN
Nonstop1h 44mUnited Airlines
Wed 4/248:15 amDEN - SUX
Nonstop1h 34mUnited Airlines
Deal found 2/18$273
Sat 3/236:00 amSUX - DEN
Nonstop2h 03mUnited Airlines
Sun 3/248:55 pmDEN - SUX
Nonstop1h 37mUnited Airlines
Deal found 2/19$345
Fri 5/2411:55 amSUX - DEN
Nonstop1h 46mUnited Airlines
Sun 5/268:30 amDEN - SUX
Nonstop1h 35mUnited Airlines
Deal found 2/19$357
Fri 5/1712:06 pmSUX - DEN
Nonstop1h 44mUnited Airlines
Mon 5/208:15 amDEN - SUX
Nonstop1h 34mUnited Airlines
Deal found 2/18$400
Sat 3/166:00 amSUX - DEN
Nonstop2h 03mUnited Airlines
Sun 3/178:55 pmDEN - SUX
Nonstop1h 37mUnited Airlines
Deal found 2/19$410
Sat 6/111:55 amSUX - DEN
Nonstop1h 46mUnited Airlines
Wed 7/319:05 pmDEN - SUX
Nonstop1h 44mUnited Airlines
Deal found 2/18$420
Sat 3/25:50 amSUX - DEN
Nonstop2h 03mUnited Airlines
Sun 3/39:05 pmDEN - SUX
Nonstop1h 37mUnited Airlines
Deal found 2/20$430

Sioux City to Denver flights leaving soon

Find last-minute flight options from Sioux City to Denver for spontaneous travel. Discover available flights and compare prices based on user searches. Secure great deals and offers for spontaneous trips with quick booking options. Over the last 7 days, Cheapflights users made 3,394,020 searches. Data last updated February 20, 2024.
Wed 2/285:50 amSUX - DEN
Nonstop2h 03mUnited Airlines
Sat 3/29:05 pmDEN - SUX
Nonstop1h 37mUnited Airlines
Deal found 2/19$313
Wed 2/285:50 amSUX - DEN
Nonstop2h 03mUnited Airlines
Wed 3/69:05 pmDEN - SUX
Nonstop1h 37mUnited Airlines
Deal found 2/19$408
Wed 2/285:50 amSUX - DEN
Nonstop2h 03mUnited Airlines
Wed 3/68:00 amDEN - SUX
1 stop27h 29mUnited Airlines
Deal found 2/19$420
Wed 2/285:50 amSUX - DEN
Nonstop2h 03mUnited Airlines
Wed 3/65:45 pmDEN - SUX
2 stops17h 44mUnited Airlines
Deal found 2/19$428
Thu 2/295:50 amSUX - DEN
Nonstop2h 03mUnited Airlines
Sun 3/39:05 pmDEN - SUX
Nonstop1h 37mUnited Airlines
Deal found 2/19$430
Thu 2/295:50 amSUX - DEN
Nonstop2h 03mUnited Airlines
Sun 3/38:36 pmDEN - SUX
2 stops14h 53mUnited Airlines
Deal found 2/19$455
Wed 2/285:50 amSUX - DEN
Nonstop2h 03mUnited Airlines
Sat 3/28:00 amDEN - SUX
1 stop27h 29mUnited Airlines
Deal found 2/19$479
Wed 2/285:50 amSUX - DEN
Nonstop2h 03mUnited Airlines
Sat 3/29:45 amDEN - SUX
2 stops25h 44mUnited Airlines
Deal found 2/19$518
Thu 2/295:50 amSUX - DEN
Nonstop2h 03mUnited Airlines
Sun 3/38:00 amDEN - SUX
1 stop27h 29mUnited Airlines
Deal found 2/19$532

One-way flights to Denver from Sioux City

Search for one-way flight options from Sioux City to Denver. Find affordable one-way fares based on user searches. Compare prices and availability to plan your one-way journey according to your preferred dates and budget. Over the last 7 days, Cheapflights users made 3,394,020 searches. Data last updated February 20, 2024.
Tue 4/212:06 pmSUX - DEN
Nonstop1h 44mUnited Airlines
Deal found 2/19$111
Thu 3/286:00 amSUX - DEN
Nonstop2h 03mUnited Airlines
Deal found 2/20$153
Mon 2/265:50 amSUX - DEN
Nonstop2h 03mUnited Airlines
Deal found 2/19$161
Tue 3/266:00 amSUX - DEN
Nonstop2h 03mUnited Airlines
Deal found 2/18$173
Thu 4/187:24 amSUX - DEN
1 stop24h 18mUnited Airlines
Deal found 2/19$217
Tue 3/261:04 pmSUX - DEN
1 stop10h 05mUnited Airlines
Deal found 2/18$227
Thu 3/281:04 pmSUX - DEN
1 stop18h 43mUnited Airlines
Deal found 2/20$238
Tue 3/261:04 pmSUX - DEN
2 stops18h 57mUnited Airlines
Deal found 2/18$275
Thu 4/187:24 amSUX - DEN
2 stops24h 13mUnited Airlines
Deal found 2/19$293

Find flights from Sioux City to Denver within your budget

Customize your flight search to find flights from Sioux City to Denver 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 3,394,020 searches. Data last updated February 20, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$219 - $357

Route

Depart

Return

Price

Sioux City Sioux GatewayDenver Intl

SUX - DEN

SUXDEN

Sioux City Sioux Gateway

Sat 3/30

Nonstop2h 03m

Denver Intl

Sat 4/13

Nonstop1h 34m

$219

Sioux City Sioux GatewayDenver Intl

SUX - DEN

SUXDEN

Sioux City Sioux Gateway

Tue 4/2

Nonstop1h 44m

Denver Intl

Sat 4/13

Nonstop1h 34m

$230

Sioux City Sioux GatewayDenver Intl

SUX - DEN

SUXDEN

Sioux City Sioux Gateway

Sat 4/20

Nonstop1h 44m

Denver Intl

Wed 4/24

Nonstop1h 34m

$273

Sioux City Sioux GatewayDenver Intl

SUX - DEN

SUXDEN

Sioux City Sioux Gateway

Sat 3/30

1 stop18h 38m

Denver Intl

Sat 4/13

Nonstop1h 34m

$320

Sioux City Sioux GatewayDenver Intl

SUX - DEN

SUXDEN

Sioux City Sioux Gateway

Tue 4/30

Nonstop1h 44m

Denver Intl

Sat 5/4

1 stop24h 54m

$327

Sioux City Sioux GatewayDenver Intl

SUX - DEN

SUXDEN

Sioux City Sioux Gateway

Tue 4/2

Nonstop1h 44m

Denver Intl

Sat 4/13

1 stop13h 59m

$338

Sioux City Sioux GatewayDenver Intl

SUX - DEN

SUXDEN

Sioux City Sioux Gateway

Sat 3/23

Nonstop2h 03m

Denver Intl

Sun 3/24

Nonstop1h 37m

$345

Sioux City Sioux GatewayDenver Intl

SUX - DEN

SUXDEN

Sioux City Sioux Gateway

Tue 4/30

2 stops17h 20m

Denver Intl

Sat 5/4

Nonstop1h 34m

$351

Sioux City Sioux GatewayDenver Intl

SUX - DEN

SUXDEN

Sioux City Sioux Gateway

Sat 3/30

Nonstop2h 03m

Denver Intl

Sat 4/13

2 stops12h 08m

$357

Flights are sorted by cheapest first

Deals found on 2/20

When is the best time to book a flight from Sioux City to Denver?

Use this chart to determine the optimal time to book a round-trip flight from Sioux City to Denver. Price data was last updated on January 28, 2024.
Booking 23 days in advance of your planned departure date is, on average, the best time to get cheap flights from Sioux City to Denver. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
Search Deals

When is the cheapest time to fly from Sioux City to Denver?

Use this chart to determine the cheapest time to fly round-trip from Sioux City to Denver. Price data was last updated on February 18, 2024.
Morning
Noon
Afternoon
Evening
All times are departure.
Travelers seeking maximum savings on their Sioux City to Denver flight should consider departing on Tuesday mornings when fares are most often at their lowest. Wednesday mornings flights should be avoided if possible as fares are typically the most expensive at this time.
Search Deals

Average price of flights to Denver by month

Plan your trip from Sioux City to Denver by taking into account the cheapest months to travel. The average price of a one-way flight from Sioux City to Denver is currently $205 while a round-trip flight costs $307. Price data was last updated on February 11, 2024.

Currently, October is the cheapest month in which you can book a flight from Sioux City to Denver (average of $194). Flying from Sioux City to Denver in June is currently the most expensive (average of $311). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

January

$220

February

$236

March

$267

April

$237

May

$248

June

$311

July

$294

August

$221

September

$216

October

$194

November

$198

December

$194

Reviews of airlines servicing Denver

Get insights into the airlines that provide service to Denver. 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 Denver. Reviews last updated February 20, 2024.
7.5
Good
1,920 reviews

Boarding

7.7

Crew

8.1

Comfort

7.3

Entertainment

7.0

Food

6.7

Overall

7.5

Reviews

1 / 10

The flight to Denver was delayed for hours. Not cool. I ended up arriving in rapid city really late. That caused a lot of problems.

7.5
Good
1,920 reviews
7.5
Good
1,920 reviews

Boarding

7.7

Crew

8.1

Comfort

7.3

Entertainment

7.0

Food

6.7

Overall

7.5

Reviews

1 / 10

The flight to Denver was delayed for hours. Not cool. I ended up arriving in rapid city really late. That caused a lot of problems.

Temperature and rainfall in Denver by month

Plan your trip to Denver by taking into account the average temperature and rainfall totals by month.

DEN

Temperature

30.2 - 73.4 °F

Related info for your journey

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

What airports do I use to fly from Sioux City to Denver?

Booking a flight from Sioux City Sioux Gateway (SUX) to Denver Intl (DEN) is your only option if you wish to fly from Sioux City to Denver. On a typical day, there is 1 flight from Sioux Gateway to Denver Intl, all of which are around 1h 44m for a nonstop flight. You can also purchase a plane ticket from 1 airline when you book a flight from Sioux Gateway to Denver.

Can I find flights from Sioux City to Denver for under $300 on Cheapflights?

Yes, there are multiple flights from Sioux City to Denver for under $300. The cheapest flight booked recently is on United Airlines for just $219, but on average you can expect to pay $364.

Are there nonstop flights from Sioux City to Denver for under $300 on Cheapflights?

Cheapflights has at least 10 direct flights from Sioux City to Denver under $300. A good price for a nonstop flight from Sioux City to Denver is less than $359.

Are there last-minute flights available from Sioux City to Denver for under $400?

There are currently 14+ open flights from Sioux City to Denver within the next 7 days for less than $400.

How popular is this Sioux City to Denver flight route?

What is the cheapest airline to fly from Sioux City to Denver round-trip?

Cheapflights users have booked flights from Sioux City to Denver round-trip from $219. Users have found that United Airlines is 19% cheaper than the other options available to this destination.

What are the cheapest flights from Sioux City to Denver?

Looking for the cheapest flight from Sioux City to Denver? While on average our users pay $408, our data indicates the cheapest price to be $149. The most popular route (Sioux City Sioux Gateway - Denver Intl), is priced around $219.

What does SUX to DEN mean?

Great question - SUX to DEN just means Sioux City Sioux Gateway Airport to Denver Intl Airport. Now you’ll know what these unique codes when you look for flights!

Browse thousands of different options on Cheapflights for your next trip

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

Top airline flying from Sioux City to Denver

Discover the top airline that operate flights from Sioux City to Denver. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 3,394,020 searches. Data last updated February 20, 2024.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$198Average$271FlexibilityNo cancel feeOn-time69%
Search United Airlines flights

Search flights from Sioux City to Denver by cabin class

Find flights from Sioux City to Denver, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Hourly flight availability from Sioux City to Denver

Find hourly flight availability from Sioux City to Denver. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated February 20, 2024.
100%of flight departuresEarly morningMidnight to 6 am
0%of flight departuresMorning6 am to noon
0%of flight departuresAfternoonNoon to 6 pm
0%of flight departuresEvening6 pm to midnight
Midnight
6 AM
Noon
6 PM

Weekly flight availability from Sioux City to Denver

Explore weekly flight availability from Sioux City to Denver. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated February 20, 2024.
Sunday1daily flight
Monday1daily flight
Tuesday1daily flight
Wednesday1daily flight
Thursday1daily flight
Friday1daily flight
Saturday1daily flight

Book a flight to one of these trending destinations

User searches for flights to these destinations increased 20% or more in the past 90 days compared to other destinations

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Sioux City to Denver?

When you search for this flight from Sioux City to Denver, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

Why should you use Cheapflights to find cheap flight tickets from Sioux City to Denver?

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

Can Cheapflights find flights from Sioux City to Denver with no change fees?

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

Can Cheapflights notify me if prices for flights from Sioux City to Denver become cheaper?

Yes, Cheapflights offers price alerts on Sioux City to Denver 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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