$168+ Cheap flights from Sioux City to Denver (SUX - DEN)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/6. Fares are subject to change and may not be available on all flights or dates of travel.
SUX — DEN
Oct 12 — Oct 191
Round-trip
1 adult, Economy
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Find cheap flights from Sioux City to Denver with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Sioux City to Denver
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Cheapest flights from Sioux City to DenverExplore the most affordable flight options available from Sioux City to Denver. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 12, 2026.
Explore the most affordable flight options available from Sioux City to Denver. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 12, 2026.
This United Airlines deal was found by Cheapflights users on 9/7. 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.
Wed 10/76:58 pm -
Nonstop1h 54m
Tue 10/139:05 pm -
Nonstop1h 38m
Deal found 9/7![United Airlines logo]()
$234
This United Airlines deal was found by Cheapflights users on 9/8. 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.
Sat 10/36:58 pm -
Nonstop1h 54m
Mon 10/59:05 pm -
Nonstop1h 38m
Deal found 9/8![United Airlines logo]()
$274
This United Airlines deal was found by Cheapflights users on 9/11. 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.
Wed 11/256:45 pm -
Nonstop1h 56m
Sun 11/299:05 pm -
Nonstop1h 38m
Deal found 9/11![United Airlines logo]()
$282
This United Airlines deal was found by Cheapflights users on 9/8. 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 10/56:58 pm -
Nonstop1h 54m
Sun 10/119:05 pm -
Nonstop1h 38m
Deal found 9/8![United Airlines logo]()
$318
This United Airlines deal was found by Cheapflights users on 9/7. 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.
Wed 11/116:45 pm -
Nonstop1h 56m
Wed 11/119:05 pm -
Nonstop1h 38m
Deal found 9/7![United Airlines logo]()
$325
This United Airlines deal was found by Cheapflights users on 9/11. 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 10/66:58 pm -
Nonstop1h 54m
Sat 10/109:05 pm -
Nonstop1h 38m
Deal found 9/11![United Airlines logo]()
$330
This United Airlines deal was found by Cheapflights users on 9/10. 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.
Fri 11/136:45 pm -
Nonstop1h 56m
Mon 11/169:05 pm -
Nonstop1h 38m
Deal found 9/10![United Airlines logo]()
$348
This United Airlines deal was found by Cheapflights users on 9/10. 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.
Thu 9/246:58 pm -
Nonstop1h 54m
Sun 9/279:05 pm -
Nonstop1h 38m
Deal found 9/10![United Airlines logo]()
$350
This United Airlines deal was found by Cheapflights users on 9/9. 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.
Thu 9/246:58 pm -
Nonstop1h 54m
Tue 9/299:05 pm -
Nonstop1h 38m
Deal found 9/9![United Airlines logo]()
$366
This United Airlines deal was found by Cheapflights users on 9/10. 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 10/276:45 pm -
Nonstop1h 56m
Sat 10/319:05 pm -
Nonstop1h 38m
Deal found 9/10![United Airlines logo]()
$370
This United Airlines deal was found by Cheapflights users on 9/7. 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.
Thu 9/176:35 pm -
Nonstop1h 54m
Tue 9/229:05 pm -
Nonstop1h 38m
Deal found 9/7![United Airlines logo]()
$380
This United Airlines deal was found by Cheapflights users on 9/10. 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.
Fri 11/136:45 pm -
Nonstop1h 56m
Sun 11/159:05 pm -
Nonstop1h 38m
Deal found 9/10![United Airlines logo]()
$382
Best flights from Sioux City to DenverDiscover carefully curated flight deals from Sioux City to Denver that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 12, 2026.
Discover carefully curated flight deals from Sioux City to Denver that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 12, 2026.
This United Airlines deal was found by Cheapflights users on 9/7. 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.
Fri 10/236:58 pm -
Nonstop1h 54m
Mon 10/269:05 pm -
Nonstop1h 38m
Deal found 9/7![United Airlines logo]()
$234
This United Airlines deal was found by Cheapflights users on 9/7. 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.
Wed 10/76:58 pm -
Nonstop1h 54m
Tue 10/139:05 pm -
Nonstop1h 38m
Deal found 9/7![United Airlines logo]()
$234
This United Airlines deal was found by Cheapflights users on 9/8. 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.
Fri 10/306:45 pm -
Nonstop1h 56m
Sat 11/149:05 pm -
Nonstop1h 38m
Deal found 9/8![United Airlines logo]()
$274
This United Airlines deal was found by Cheapflights users on 9/11. 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 10/66:58 pm -
Nonstop1h 54m
Sat 10/109:05 pm -
Nonstop1h 38m
Deal found 9/11![United Airlines logo]()
$330
This United Airlines deal was found by Cheapflights users on 9/10. 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.
Fri 11/136:45 pm -
Nonstop1h 56m
Mon 11/169:05 pm -
Nonstop1h 38m
Deal found 9/10![United Airlines logo]()
$348
This United Airlines deal was found by Cheapflights users on 9/10. 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.
Thu 9/246:58 pm -
Nonstop1h 54m
Sun 9/279:05 pm -
Nonstop1h 38m
Deal found 9/10![United Airlines logo]()
$350
This United Airlines deal was found by Cheapflights users on 9/11. 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 10/276:45 pm -
Nonstop1h 56m
Sat 10/319:05 pm -
Nonstop1h 38m
Deal found 9/11![United Airlines logo]()
$370
This United Airlines deal was found by Cheapflights users on 9/9. 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.
Thu 11/126:45 pm -
Nonstop1h 56m
Sat 11/149:05 pm -
Nonstop1h 38m
Deal found 9/9![United Airlines logo]()
$370
This United Airlines deal was found by Cheapflights users on 9/11. 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.
Wed 11/256:45 pm -
Nonstop1h 56m
Mon 11/309:05 pm -
Nonstop1h 38m
Deal found 9/11![United Airlines logo]()
$382
This United Airlines deal was found by Cheapflights users on 9/8. 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 11/26:45 pm -
Nonstop1h 56m
Sat 11/146:00 am -
1 stop11h 10m
Deal found 9/8![United Airlines logo]()
$418
Last-minute flights from Sioux City to DenverDiscover last-minute flight deals from Sioux City to Denver. Data last updated September 12, 2026 and is based on user searches.
Discover last-minute flight deals from Sioux City to Denver. Data last updated September 12, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 9/7. 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.
Thu 9/176:35 pm -
Nonstop1h 54m
Tue 9/229:05 pm -
Nonstop1h 38m
Deal found 9/7![United Airlines logo]()
$380
This United Airlines deal was found by Cheapflights users on 9/7. 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.
Thu 9/176:35 pm -
Nonstop1h 54m
Sun 9/209:05 pm -
Nonstop1h 38m
Deal found 9/7![United Airlines logo]()
$430
This United Airlines deal was found by Cheapflights users on 9/10. 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.
Thu 9/246:58 pm -
Nonstop1h 54m
Sun 9/279:05 pm -
Nonstop1h 38m
Deal found 9/10![United Airlines logo]()
$350
This United Airlines deal was found by Cheapflights users on 9/9. 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.
Thu 9/246:58 pm -
Nonstop1h 54m
Tue 9/299:05 pm -
Nonstop1h 38m
Deal found 9/9![United Airlines logo]()
$366
This United Airlines deal was found by Cheapflights users on 9/8. 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.
Sat 10/36:58 pm -
Nonstop1h 54m
Mon 10/59:05 pm -
Nonstop1h 38m
Deal found 9/8![United Airlines logo]()
$274
This United Airlines deal was found by Cheapflights users on 9/8. 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 10/56:58 pm -
Nonstop1h 54m
Sun 10/119:05 pm -
Nonstop1h 38m
Deal found 9/8![United Airlines logo]()
$318
This United Airlines deal was found by Cheapflights users on 9/11. 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 10/66:58 pm -
Nonstop1h 54m
Sat 10/109:05 pm -
Nonstop1h 38m
Deal found 9/11![United Airlines logo]()
$330
This United Airlines deal was found by Cheapflights users on 9/7. 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.
Wed 10/76:58 pm -
Nonstop1h 54m
Tue 10/139:05 pm -
Nonstop1h 38m
Deal found 9/7![United Airlines logo]()
$234
This United Airlines deal was found by Cheapflights users on 9/10. 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 10/276:45 pm -
Nonstop1h 56m
Sat 10/319:05 pm -
Nonstop1h 38m
Deal found 9/10![United Airlines logo]()
$370
One-way flights from Sioux City to DenverSearch for one-way flight options from Sioux City to Denver. Find affordable one-way fares based on user searches. Data last updated September 12, 2026.
Search for one-way flight options from Sioux City to Denver. Find affordable one-way fares based on user searches. Data last updated September 12, 2026.
This United Airlines deal was found by Cheapflights users on 9/11. 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 10/66:58 pm -
Nonstop1h 54m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/11![United Airlines logo]()
$168
This United Airlines deal was found by Cheapflights users on 9/8. 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 9/216:35 pm -
Nonstop1h 54m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/8![United Airlines logo]()
$218
This United Airlines deal was found by Cheapflights users on 9/7. 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.
Wed 11/116:00 am -
2 stops29h 13m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/7![United Airlines logo]()
$507
This United Airlines deal was found by Cheapflights users on 9/8. 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 10/198:35 am -
2 stops28h 04m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/8![United Airlines logo]()
$531
Find flight deals from Sioux City to Denver
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 September 12, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $234 (United Airlines) |
One-way from | $168 (United Airlines) |
Popular in | February |
Cheapest in | March |
Average price | $254 |
Good round-trip deal | $323 or less |
Good one-way deal | $267 or less |
Cheapflights Fare Finder
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 7,457,451 searches. Data last updated September 12, 2026.
Use the filters below to find and compare flights from Sioux City to Denver that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Quickest round-trip
Sioux CityDenver
SUX Sioux City Sioux Gateway - DEN Denver Intl
SUXDEN
Sioux City Sioux Gateway
Tue 10/6
6:58 pm-7:52 pm
Nonstop1h 54m
Denver Intl
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$168
Sioux CityDenver
SUX Sioux City Sioux Gateway - DEN Denver Intl
SUXDEN
Sioux City Sioux Gateway
Mon 10/19
6:58 pm-7:52 pm
Nonstop1h 54m
Denver Intl
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$168
Sioux CityDenver
SUX Sioux City Sioux Gateway - DEN Denver Intl
SUXDEN
Sioux City Sioux Gateway
Mon 9/21
6:35 pm-7:29 pm
Nonstop1h 54m
Denver Intl
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$218
Sioux CityDenver
SUX Sioux City Sioux Gateway - DEN Denver Intl
SUXDEN
Sioux City Sioux Gateway
Fri 10/23
6:58 pm-7:52 pm
Nonstop1h 54m
Denver Intl
Mon 10/26
9:05 pm-11:43 pm
Nonstop1h 38m
$234
Sioux CityDenver
SUX Sioux City Sioux Gateway - DEN Denver Intl
SUXDEN
Sioux City Sioux Gateway
Wed 10/7
6:58 pm-7:52 pm
Nonstop1h 54m
Denver Intl
Tue 10/13
9:05 pm-11:43 pm
Nonstop1h 38m
$234
Sioux CityDenver
SUX Sioux City Sioux Gateway - DEN Denver Intl
SUXDEN
Sioux City Sioux Gateway
Fri 10/30
6:45 pm-7:41 pm
Nonstop1h 56m
Denver Intl
Sat 11/14
9:05 pm-11:43 pm
Nonstop1h 38m
$274
Sioux CityDenver
SUX Sioux City Sioux Gateway - DEN Denver Intl
SUXDEN
Sioux City Sioux Gateway
Tue 10/6
6:58 pm-7:52 pm
Nonstop1h 54m
Denver Intl
Sat 10/10
9:05 pm-11:43 pm
Nonstop1h 38m
$330
Sioux CityDenver
SUX Sioux City Sioux Gateway - DEN Denver Intl
SUXDEN
Sioux City Sioux Gateway
Fri 11/13
6:45 pm-7:41 pm
Nonstop1h 56m
Denver Intl
Mon 11/16
9:05 pm-11:43 pm
Nonstop1h 38m
$348
Sioux CityDenver
SUX Sioux City Sioux Gateway - DEN Denver Intl
SUXDEN
Sioux City Sioux Gateway
Thu 9/24
6:58 pm-7:52 pm
Nonstop1h 54m
Denver Intl
Sun 9/27
9:05 pm-11:43 pm
Nonstop1h 38m
$350
Sioux CityDenver
SUX Sioux City Sioux Gateway - DEN Denver Intl
SUXDEN
Sioux City Sioux Gateway
Tue 10/27
6:45 pm-7:41 pm
Nonstop1h 56m
Denver Intl
Sat 10/31
9:05 pm-11:43 pm
Nonstop1h 38m
$370
Showing 1-10 of 13 resultsSorted by cheapest first
Compare providers for flights from Sioux City to Denver
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Sioux City to Denver in September.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Sioux City-Denver flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Sioux City-Denver flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Sioux City-Denver flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Sioux City-Denver flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Sioux City-Denver flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
Best time to book a flight from Sioux City to Denver
Have a flexible travel schedule? Discover the best time to fly to Denver from Sioux City with our price prediction graph.
SUX-DEN
Estimated round-trip 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 Sioux City to Denver
What is the cheapest month to book a flight from Sioux City to Denver?
Currently, March is the cheapest month in which you can book a flight from Sioux City to Denver (average of $214). Flying from Sioux City to Denver in February is currently the most expensive (average of $360). 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.
What is the cheapest time of day to fly from SUX to DEN?
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 September 12, 2026.
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.
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 September 12, 2026.
Read reviews from past customers who have flown United Airlines from Sioux City to Denver. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Overall
7.4
Comfort
7.3
Entertainment
7.1
Boarding
7.7
Food
6.7
Crew
8.1
Reviews
1 / 20
2.0
MediocreDawn,Aug 2026
ORD - DEN
Overall
7.4
Comfort
7.3
Entertainment
7.1
Boarding
7.7
Food
6.7
Crew
8.1
Reviews
1 / 20
2.0
MediocreDawn,Aug 2026
ORD - DEN
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.
Traveling to a place near Denver?
Book flights to Denver if you plan to visit one of these locationsThornton
Westminster
Lakewood
Centennial
Black Hawk
Broomfield
Golden
Wheat Ridge
Silverthorne
Central City
Fort Morgan
Greeley
Cripple Creek
Winter Park
Limon
Frisco
Manitou Springs
Englewood
Glendale
Evergreen
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.
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Complete your trip
Complete your trip to Denver by adding a car rental and/or hotel reservation to your travel itinerary.
Other flights to Denver
Explore flights to Denver departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on September 12, 2026.
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Find flights from Sioux City to Denver, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Sioux City and Denver flights
Browse other Sioux City and Denver flight options. Last updated on September 12, 2026.
Other flights from Sioux City
Browse through other flights departing from Sioux City. Flights are based on user searches made on Cheapflights and were last updated on September 12, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
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 7,457,451 searches. Data last updated September 12, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$214 | Average$256 | FlexibilityNo cancel fee | On-time69% |