$82+ Cheap flights from St. Louis (STL) to Aurora, CO
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 11/10. Fares are subject to change and may not be available on all flights or dates of travel.
STL — DEN
Sep 18 — Sep 251
Round-trip
1 adult, Economy
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Find cheap flights from St. Louis to Aurora 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.Cheapflights Tip: The best prices from Lambert-St Louis to Aurora are usually found in October or November, booked 35 days in advance, depart on a Saturday or Wednesday and return on a Saturday
Cheap flight deals from St. Louis to Aurora
Cheapest
Best
Last-minute
One-way
Cheapest flights from St. Louis to AuroraExplore the most affordable flight options available from St. Louis to Aurora. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 19, 2026.
Explore the most affordable flight options available from St. Louis to Aurora. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 19, 2026.
This Kiwi.com deal was found by Cheapflights users on 8/17. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/236:35 pm -
1 stop14h 31m
Mon 10/264:12 pm -
Nonstop2h 03m
Deal found 8/17![Frontier logo]()
$127
This Kiwi.com deal was found by Cheapflights users on 8/18. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/212:29 pm -
1 stop18h 35m
Sat 9/264:12 pm -
Nonstop2h 05m
Deal found 8/18![Frontier logo]()
$128
This Kiwi.com deal was found by Cheapflights users on 8/18. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/22:29 pm -
1 stop18h 35m
Mon 10/54:12 pm -
Nonstop2h 05m
Deal found 8/18![Frontier logo]()
$130
This CheapOair deal was found by Cheapflights users on 8/17. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/288:10 pm -
Nonstop2h 29m
Tue 9/291:05 pm -
1 stop21h 27m
Deal found 8/17![Frontier logo]()
$131
This FlightHub deal was found by Cheapflights users on 8/13. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/85:27 pm -
1 stop6h 28m
Sat 9/194:12 pm -
Nonstop2h 05m
Deal found 8/13![Frontier logo]()
$133
This Cheapflightsfares deal was found by Cheapflights users on 8/14. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/198:10 pm -
Nonstop2h 29m
Thu 9/246:40 am -
1 stop10h 14m
Deal found 8/14![Frontier logo]()
$134
This Cheapflightsfares deal was found by Cheapflights users on 8/14. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/26:45 pm -
1 stop17h 34m
Sun 9/64:00 pm -
Nonstop2h 13m
Deal found 8/14![Frontier logo]()
$135
This Expedia deal was found by Cheapflights users on 8/14. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/188:10 pm -
Nonstop2h 29m
Mon 9/214:12 pm -
Nonstop2h 05m
Deal found 8/14![Frontier logo]()
$136
This Kiwi.com deal was found by Cheapflights users on 8/15. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/238:10 pm -
Nonstop2h 29m
Mon 9/286:40 am -
1 stop8h 54m
Deal found 8/15![Frontier logo]()
$137
This Frontier deal was found by Cheapflights users on 8/17. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/188:10 pm -
Nonstop2h 29m
Sat 9/269:19 pm -
1 stop11h 16m
Deal found 8/17![Frontier logo]()
$138
This Kiwi.com deal was found by Cheapflights users on 8/17. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/238:10 pm -
Nonstop2h 29m
Thu 10/17:12 pm -
1 stop20h 22m
Deal found 8/17![Frontier logo]()
$140
Best flights from St. Louis to AuroraDiscover carefully curated flight deals from St. Louis to Aurora that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 19, 2026.
Discover carefully curated flight deals from St. Louis to Aurora that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 19, 2026.
This Southwest deal was found by Cheapflights users on 8/18. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/158:50 pm -
Nonstop2h 20m
Tue 9/226:35 am -
Nonstop2h 00m
Deal found 8/18![Southwest logo]()
$177
This Cheapflightsfares deal was found by Cheapflights users on 8/18. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/1912:17 pm -
1 stop12h 27m
Sun 9/207:12 pm -
1 stop20h 22m
Deal found 8/18![Frontier logo]()
$223
This United Airlines deal was found by Cheapflights users on 8/16. 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 9/84:46 pm -
Nonstop2h 30m
Sat 9/195:32 pm -
Nonstop2h 06m
Deal found 8/16![United Airlines logo]()
$257
This United Airlines deal was found by Cheapflights users on 8/15. 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 10/231:36 pm -
Nonstop2h 24m
Tue 10/271:55 pm -
Nonstop2h 02m
Deal found 8/15![United Airlines logo]()
$275
This Southwest deal was found by Cheapflights users on 8/17. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/198:25 am -
2 stops5h 40m
Tue 9/2211:15 am -
2 stops5h 40m
Deal found 8/17![Southwest logo]()
$307
This United Airlines deal was found by Cheapflights users on 8/16. 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 10/194:39 pm -
Nonstop2h 31m
Thu 10/225:30 pm -
Nonstop2h 06m
Deal found 8/16![United Airlines logo]()
$316
This Southwest deal was found by Cheapflights users on 8/16. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/58:25 am -
2 stops5h 40m
Sat 9/121:10 pm -
2 stops6h 30m
Deal found 8/16![Southwest logo]()
$337
This United Airlines deal was found by Cheapflights users on 8/16. 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 9/175:10 am -
Nonstop2h 33m
Mon 9/215:32 pm -
Nonstop2h 06m
Deal found 8/16![United Airlines logo]()
$316
This United Airlines deal was found by Cheapflights users on 8/17. 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 9/245:10 am -
Nonstop2h 33m
Tue 9/292:49 pm -
1 stop5h 32m
Deal found 8/17![United Airlines logo]()
$367
This United Airlines deal was found by Cheapflights users on 8/15. 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 10/89:00 am -
Nonstop2h 30m
Mon 10/125:30 pm -
Nonstop2h 06m
Deal found 8/15![United Airlines logo]()
$375
Last-minute flights from St. Louis to AuroraDiscover last-minute flight deals from St. Louis to Aurora. Data last updated August 19, 2026 and is based on user searches.
Discover last-minute flight deals from St. Louis to Aurora. Data last updated August 19, 2026 and is based on user searches.
This Cheapflightsfares deal was found by Cheapflights users on 8/13. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/16:45 pm -
1 stop15h 20m
Wed 9/91:05 pm -
1 stop21h 12m
Deal found 8/13![Frontier logo]()
$144
This Cheapflightsfares deal was found by Cheapflights users on 8/14. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/26:45 pm -
1 stop17h 34m
Sun 9/64:00 pm -
Nonstop2h 13m
Deal found 8/14![Frontier logo]()
$135
This FlightHub deal was found by Cheapflights users on 8/13. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/85:27 pm -
1 stop6h 28m
Sat 9/194:12 pm -
Nonstop2h 05m
Deal found 8/13![Frontier logo]()
$133
This Expedia deal was found by Cheapflights users on 8/14. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/188:10 pm -
Nonstop2h 29m
Mon 9/214:12 pm -
Nonstop2h 05m
Deal found 8/14![Frontier logo]()
$136
This Frontier deal was found by Cheapflights users on 8/17. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/188:10 pm -
Nonstop2h 29m
Sat 9/269:19 pm -
1 stop11h 16m
Deal found 8/17![Frontier logo]()
$138
This Cheapflightsfares deal was found by Cheapflights users on 8/14. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/198:10 pm -
Nonstop2h 29m
Thu 9/246:40 am -
1 stop10h 14m
Deal found 8/14![Frontier logo]()
$134
This Kiwi.com deal was found by Cheapflights users on 8/18. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/212:29 pm -
1 stop18h 35m
Sat 9/264:12 pm -
Nonstop2h 05m
Deal found 8/18![Frontier logo]()
$128
This Kiwi.com deal was found by Cheapflights users on 8/17. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/238:10 pm -
Nonstop2h 29m
Mon 9/286:40 am -
1 stop8h 54m
Deal found 8/17![Frontier logo]()
$137
This Kiwi.com deal was found by Cheapflights users on 8/17. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/238:10 pm -
Nonstop2h 29m
Thu 10/17:12 pm -
1 stop20h 22m
Deal found 8/17![Frontier logo]()
$140
This Expedia deal was found by Cheapflights users on 8/16. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/246:39 pm -
1 stop25h 58m
Fri 10/24:12 pm -
Nonstop2h 05m
Deal found 8/16![Frontier logo]()
$141
This CheapOair deal was found by Cheapflights users on 8/17. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/288:10 pm -
Nonstop2h 29m
Tue 9/291:05 pm -
1 stop21h 27m
Deal found 8/17![Frontier logo]()
$131
One-way flights from St. Louis to AuroraSearch for one-way flight options from St. Louis to Aurora. Find affordable one-way fares based on user searches. Data last updated August 19, 2026.
Search for one-way flight options from St. Louis to Aurora. Find affordable one-way fares based on user searches. Data last updated August 19, 2026.
This Kiwi.com deal was found by Cheapflights users on 8/14. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/1010:35 am -
1 stop12h 58m
Deal found 8/14![Frontier logo]()
$82
This Super.com deal was found by Cheapflights users on 8/16. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/84:30 pm -
1 stop24h 17m
Deal found 8/16![Frontier logo]()
$84
This Frontier deal was found by Cheapflights users on 8/14. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/128:34 pm -
1 stop13h 56m
Deal found 8/14![Frontier logo]()
$85
This Southwest deal was found by Cheapflights users on 8/17. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/158:50 pm -
Nonstop2h 20m
Deal found 8/17![Southwest logo]()
$89
This Kiwi.com deal was found by Cheapflights users on 8/18. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/166:35 pm -
1 stop14h 31m
Deal found 8/18![Frontier logo]()
$90
This Kiwi.com deal was found by Cheapflights users on 8/16. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/96:35 pm -
1 stop27h 56m
Deal found 8/16![Frontier logo]()
$91
This Kiwi.com deal was found by Cheapflights users on 8/14. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/1310:35 am -
2 stops26h 49m
Deal found 8/14![Frontier logo]()
$92
This Trip.com deal was found by Cheapflights users on 8/15. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/65:27 pm -
1 stop14h 01m
Deal found 8/15![Frontier logo]()
$93
This Super.com deal was found by Cheapflights users on 8/16. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/1112:17 pm -
1 stop6h 53m
Deal found 8/16![Frontier logo]()
$96
This Frontier deal was found by Cheapflights users on 8/14. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/44:23 pm -
1 stop7h 37m
Deal found 8/14![Frontier logo]()
$97
This Kiwi.com deal was found by Cheapflights users on 8/17. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/142:29 pm -
2 stops26h 32m
Deal found 8/17![Frontier logo]()
$98
This Delta deal was found by Cheapflights users on 8/16. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/135:35 pm -
1 stop7h 09m
Deal found 8/16![Delta logo]()
$99
Find flight deals from St. Louis to Aurora
Keep the following information in mind while searching for St. Louis to Aurora flight deals. Data was last updated August 19, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $127 (Kiwi.com) |
One-way from | $82 (Kiwi.com) |
Popular in | June |
Cheapest in | October |
Average price | $257 |
Cheapflights Fare Finder
Customize your flight search to find flights from St. Louis to Aurora 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 2,558,603 searches. Data last updated August 19, 2026.
Use the filters below to find and compare flights from St. Louis to Aurora that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Quickest round-trip
St. LouisDenver
STL Lambert-St Louis - DEN Denver Intl
STLDEN
Lambert-St Louis
Tue 9/15
8:50 pm-10:10 pm
Nonstop2h 20m
Denver Intl
Tue 9/22
6:35 am-9:35 am
Nonstop2h 00m
$177
St. LouisDenver
STL Lambert-St Louis - DEN Denver Intl
STLDEN
Lambert-St Louis
Sat 9/19
12:17 pm-11:44 pm
1 stop12h 27m
Denver Intl
Sun 9/20
7:12 pm-4:34 pm
1 stop20h 22m
$223
St. LouisDenver
STL Lambert-St Louis - DEN Denver Intl
STLDEN
Lambert-St Louis
Tue 9/8
4:46 pm-6:16 pm
Nonstop2h 30m
Denver Intl
Sat 9/19
5:32 pm-8:38 pm
Nonstop2h 06m
$257
St. LouisDenver
STL Lambert-St Louis - DEN Denver Intl
STLDEN
Lambert-St Louis
Fri 10/23
1:36 pm-3:00 pm
Nonstop2h 24m
Denver Intl
Tue 10/27
1:55 pm-4:57 pm
Nonstop2h 02m
$275
St. LouisDenver
STL Lambert-St Louis - DEN Denver Intl
STLDEN
Lambert-St Louis
Sat 9/19
8:25 am-1:05 pm
2 stops5h 40m
Denver Intl
Tue 9/22
11:15 am-5:55 pm
2 stops5h 40m
$307
St. LouisDenver
STL Lambert-St Louis - DEN Denver Intl
STLDEN
Lambert-St Louis
Mon 10/19
4:39 pm-6:10 pm
Nonstop2h 31m
Denver Intl
Thu 10/22
5:30 pm-8:36 pm
Nonstop2h 06m
$316
St. LouisDenver
STL Lambert-St Louis - DEN Denver Intl
STLDEN
Lambert-St Louis
Thu 9/17
5:10 am-6:43 am
Nonstop2h 33m
Denver Intl
Mon 9/21
5:32 pm-8:38 pm
Nonstop2h 06m
$316
St. LouisDenver
STL Lambert-St Louis - DEN Denver Intl
STLDEN
Lambert-St Louis
Sat 9/5
8:25 am-1:05 pm
2 stops5h 40m
Denver Intl
Sat 9/12
1:10 pm-8:40 pm
2 stops6h 30m
$337
St. LouisDenver
STL Lambert-St Louis - DEN Denver Intl
STLDEN
Lambert-St Louis
Thu 9/24
5:10 am-6:43 am
Nonstop2h 33m
Denver Intl
Tue 9/29
2:49 pm-9:21 pm
1 stop5h 32m
$367
St. LouisDenver
STL Lambert-St Louis - DEN Denver Intl
STLDEN
Lambert-St Louis
Thu 10/8
9:00 am-10:30 am
Nonstop2h 30m
Denver Intl
Mon 10/12
5:30 pm-8:36 pm
Nonstop2h 06m
$375
Showing 1-10 of 21 resultsSorted by cheapest first
Best time to book a flight from St. Louis to Aurora
Have a flexible travel schedule? Discover the best time to fly to Aurora from St. Louis with our price prediction graph.
STL-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 St. Louis to Aurora
STL-9UR
STL-DEN
What is the cheapest time of day to fly from STL to 9UR?
Find hourly flight availability from St. Louis to Aurora. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated August 19, 2026.
It’s optimal to fly from St. Louis to Aurora in the evening. By choosing this option you can save up to 50% on the cost of your flight, compared to a flight in the morning.
Weekly flight availability from St. Louis to Aurora
Explore weekly flight availability from St. Louis to Aurora. 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 August 19, 2026.
The most flights from STL to 9UR are scheduled on a Monday (16 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (4 on average).
How much does it cost to fly round-trip from St. Louis to Aurora?
Airfare is below average for this route at the moment.
St. Louis to Aurora flights typically cost between $181 and $374 in October.The cheapest round-trip price found within the last 5 days was $127 on Frontier (Oct 23-Oct 26).
What is the cheapest day to fly from St. Louis to Aurora?
Use this chart to determine the cheapest time to fly round-trip from St. Louis to Aurora. Price data was last updated on August 15, 2026.
Travelers seeking maximum savings on their St. Louis to Aurora flight should consider departing on Tuesday evenings when fares are most often at their lowest. Sunday at noon flights should be avoided if possible as fares are typically the most expensive at this time.
Reviews of airlines servicing Aurora
Get insights into the airlines that provide service to Aurora. 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 Aurora. Reviews last updated August 19, 2026.
See what other customers who have flown with Southwest,United Airlines, andFrontier from St. Louis to Aurora have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Boarding
8.1
Overall
8.0
Food
7.0
Crew
8.6
Comfort
8.0
Entertainment
7.5
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Boarding
8.1
Overall
8.0
Food
7.0
Crew
8.6
Comfort
8.0
Entertainment
7.5
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Boarding
8.1
Overall
8.0
Food
7.0
Crew
8.6
Comfort
8.0
Entertainment
7.5
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Boarding
8.1
Overall
8.0
Food
7.0
Crew
8.6
Comfort
8.0
Entertainment
7.5
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Related info for your journey
Find useful and relevant information for your journey from St. Louis to Aurora. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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St. Louis and Aurora flights
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Top 4 airlines flying from St. Louis to Aurora
Discover the top 4 airlines that operate flights from St. Louis to Aurora. 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 2,558,603 searches. Data last updated August 19, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$56 | Average$169 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$158 | Average$437 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$177 | Average$356 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$187 | Average$365 | FlexibilityNo cancel fee | On-time63% |