$34+ 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 4/8. Fares are subject to change and may not be available on all flights or dates of travel.
STL — DEN
Apr 21 — Apr 281
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 September, booked 71 days in advance, depart on a Wednesday or Friday and return on a Friday
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 March 22, 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 March 22, 2026.
This Cheapflightsfares deal was found by Cheapflights users on 3/20. 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 4/48:16 pm
STL
- DEN
Nonstop2h 33m
Frontier
Wed 4/86:40 am
DEN
- STL
Nonstop2h 08m
Frontier
Deal found 3/20![Frontier logo]()
$79
This Kiwi.com deal was found by Cheapflights users on 3/17. 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 4/38:16 pm
STL
- DEN
Nonstop2h 33m
Frontier
Sat 4/116:40 am
DEN
- STL
Nonstop2h 08m
Frontier
Deal found 3/17![Frontier logo]()
$87
This Cheapflightsfares deal was found by Cheapflights users on 3/18. 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.
Fri 4/38:16 pm
STL
- DEN
Nonstop2h 33m
Frontier
Mon 4/66:40 am
DEN
- STL
Nonstop2h 08m
Frontier
Deal found 3/18![Frontier logo]()
$88
This Super.com deal was found by Cheapflights users on 3/20. 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.
Wed 4/88:16 pm
STL
- DEN
Nonstop2h 33m
Frontier
Sat 4/116:40 am
DEN
- STL
Nonstop2h 08m
Frontier
Deal found 3/20![Frontier logo]()
$91
This Cheapflightsfares deal was found by Cheapflights users on 3/20. 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 5/28:17 pm
STL
- DEN
Nonstop2h 33m
Frontier
Sat 5/94:15 pm
DEN
- STL
Nonstop2h 08m
Frontier
Deal found 3/20![Frontier logo]()
$98
This Super.com deal was found by Cheapflights users on 3/18. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/238:06 pm
STL
- DEN
Nonstop2h 33m
Frontier
Sat 4/254:20 pm
DEN
- STL
Nonstop2h 12m
Frontier
Deal found 3/18![Frontier logo]()
$100
This Frontier deal was found by Cheapflights users on 3/20. 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 4/168:06 pm
STL
- DEN
Nonstop2h 33m
Frontier
Wed 5/274:15 pm
DEN
- STL
Nonstop2h 08m
Frontier
Deal found 3/20![Frontier logo]()
$102
This Kiwi.com deal was found by Cheapflights users on 3/20. 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 5/48:17 pm
STL
- DEN
Nonstop2h 33m
Frontier
Mon 5/114:15 pm
DEN
- STL
Nonstop2h 08m
Frontier
Deal found 3/20![Frontier logo]()
$111
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 March 22, 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 March 22, 2026.
This Southwest deal was found by Cheapflights users on 3/19. 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.
Thu 4/169:40 pm
STL
- DEN
Nonstop2h 20m
Southwest
Thu 4/236:00 am
DEN
- STL
1 stop5h 30m
Southwest
Deal found 3/19![Southwest logo]()
$231
This United Airlines deal was found by Cheapflights users on 3/17. 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.
Tue 4/78:54 am
STL
- DEN
Nonstop2h 33m
United Airlines
Fri 4/105:45 pm
DEN
- STL
Nonstop2h 09m
United Airlines
Deal found 3/17![United Airlines logo]()
$289
This Southwest deal was found by Cheapflights users on 3/17. 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.
Sun 5/318:30 am
STL
- DEN
Nonstop2h 20m
Southwest
Thu 6/48:45 pm
DEN
- STL
Nonstop2h 10m
Southwest
Deal found 3/17![Southwest logo]()
$284
This United Airlines deal was found by Cheapflights users on 3/19. 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 5/45:59 pm
STL
- DEN
Nonstop2h 34m
United Airlines
Wed 5/61:49 pm
DEN
- STL
Nonstop2h 08m
United Airlines
Deal found 3/19![United Airlines logo]()
$291
This Southwest deal was found by Cheapflights users on 3/20. 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.
Wed 4/158:25 am
STL
- DEN
1 stop6h 10m
Southwest
Wed 5/2711:00 am
DEN
- STL
2 stops5h 55m
Southwest
Deal found 3/20![Southwest logo]()
$309
This United Airlines deal was found by Cheapflights users on 3/17. 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.
Fri 8/145:10 am
STL
- DEN
Nonstop2h 27m
United Airlines
Tue 8/185:34 pm
DEN
- STL
Nonstop2h 05m
United Airlines
Deal found 3/17![United Airlines logo]()
$347
This Southwest deal was found by Cheapflights users on 3/17. 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.
Thu 9/108:45 pm
STL
- DEN
Nonstop2h 15m
Southwest
Tue 9/156:35 am
DEN
- STL
Nonstop2h 00m
Southwest
Deal found 3/17![Southwest logo]()
$347
This United Airlines deal was found by Cheapflights users on 3/19. 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 4/158:54 am
STL
- DEN
Nonstop2h 33m
United Airlines
Sun 4/195:45 pm
DEN
- STL
Nonstop2h 09m
United Airlines
Deal found 3/19![United Airlines logo]()
$349
This Southwest deal was found by Cheapflights users on 3/18. 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.
Fri 9/188:45 pm
STL
- DEN
Nonstop2h 15m
Southwest
Mon 9/216:25 am
DEN
- STL
Nonstop2h 00m
Southwest
Deal found 3/18![Southwest logo]()
$347
This United Airlines deal was found by Cheapflights users on 3/17. 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.
Mon 6/228:15 pm
STL
- DEN
1 stop5h 38m
United Airlines
Fri 7/38:45 pm
DEN
- STL
Nonstop2h 12m
United Airlines
Deal found 3/17![United Airlines logo]()
$357
This Southwest deal was found by Cheapflights users on 3/21. 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.
Mon 6/297:15 pm
STL
- DEN
1 stop5h 20m
Southwest
Tue 7/78:05 am
DEN
- STL
1 stop5h 40m
Southwest
Deal found 3/21![Southwest logo]()
$367
Last-minute flights from St. Louis to AuroraDiscover last-minute flight deals from St. Louis to Aurora. Data last updated March 22, 2026 and is based on user searches.
Discover last-minute flight deals from St. Louis to Aurora. Data last updated March 22, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 3/17. 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 4/38:16 pm
STL
- DEN
Nonstop2h 33m
Frontier
Sat 4/116:40 am
DEN
- STL
Nonstop2h 08m
Frontier
Deal found 3/17![Frontier logo]()
$87
This Cheapflightsfares deal was found by Cheapflights users on 3/18. 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.
Fri 4/38:16 pm
STL
- DEN
Nonstop2h 33m
Frontier
Mon 4/66:40 am
DEN
- STL
Nonstop2h 08m
Frontier
Deal found 3/18![Frontier logo]()
$88
This Cheapflightsfares deal was found by Cheapflights users on 3/20. 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 4/48:16 pm
STL
- DEN
Nonstop2h 33m
Frontier
Wed 4/86:40 am
DEN
- STL
Nonstop2h 08m
Frontier
Deal found 3/20![Frontier logo]()
$79
This Super.com deal was found by Cheapflights users on 3/20. 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.
Wed 4/88:16 pm
STL
- DEN
Nonstop2h 33m
Frontier
Sat 4/116:40 am
DEN
- STL
Nonstop2h 08m
Frontier
Deal found 3/20![Frontier logo]()
$91
This Frontier deal was found by Cheapflights users on 3/20. 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 4/168:06 pm
STL
- DEN
Nonstop2h 33m
Frontier
Wed 5/274:15 pm
DEN
- STL
Nonstop2h 08m
Frontier
Deal found 3/20![Frontier logo]()
$102
This Cheapflightsfares deal was found by Cheapflights users on 3/19. 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.
Thu 4/168:06 pm
STL
- DEN
Nonstop2h 33m
Frontier
Thu 4/234:09 pm
DEN
- STL
Nonstop2h 12m
Frontier
Deal found 3/19![Frontier logo]()
$111
This Cheapflightsfares deal was found by Cheapflights users on 3/17. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/188:17 pm
STL
- DEN
Nonstop2h 33m
Frontier
Sun 4/264:09 pm
DEN
- STL
Nonstop2h 12m
Frontier
Deal found 3/17![Frontier logo]()
$117
This Frontier deal was found by Cheapflights users on 3/19. 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.
Mon 4/209:55 pm
STL
- DEN
1 stop7h 04m
Frontier
Sat 4/254:20 pm
DEN
- STL
Nonstop2h 12m
Frontier
Deal found 3/19![Frontier logo]()
$114
This Super.com deal was found by Cheapflights users on 3/18. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/238:06 pm
STL
- DEN
Nonstop2h 33m
Frontier
Sat 4/254:20 pm
DEN
- STL
Nonstop2h 12m
Frontier
Deal found 3/18![Frontier logo]()
$100
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 March 22, 2026.
Search for one-way flight options from St. Louis to Aurora. Find affordable one-way fares based on user searches. Data last updated March 22, 2026.
This Kiwi.com deal was found by Cheapflights users on 3/18. 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.
Wed 4/88:16 pm
STL
- DEN
Nonstop2h 33m
Frontier
Deal found 3/18![Frontier logo]()
$34
This Kiwi.com deal was found by Cheapflights users on 3/18. 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 4/38:16 pm
STL
- DEN
Nonstop2h 33m
Frontier
Deal found 3/18![Frontier logo]()
$43
This Frontier deal was found by Cheapflights users on 3/19. 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 4/178:06 pm
STL
- DEN
Nonstop2h 33m
Frontier
Deal found 3/19![Frontier logo]()
$44
This Frontier deal was found by Cheapflights users on 3/19. 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 4/168:06 pm
STL
- DEN
Nonstop2h 33m
Frontier
Deal found 3/19![Frontier logo]()
$56
This Kiwi.com deal was found by Cheapflights users on 3/18. 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.
Tue 5/268:08 pm
STL
- DEN
Nonstop2h 33m
Frontier
Deal found 3/18![Frontier logo]()
$65
This Super.com deal was found by Cheapflights users on 3/20. 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.
Mon 4/209:55 pm
STL
- DEN
1 stop7h 04m
Frontier
Deal found 3/20![Frontier logo]()
$69
This Cheapflightsfares deal was found by Cheapflights users on 3/22. 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 5/66:51 pm
STL
- DEN
1 stop9h 34m
Frontier
Deal found 3/22![Frontier logo]()
$70
This Frontier deal was found by Cheapflights users on 3/21. 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.
Sat 4/188:17 pm
STL
- DEN
Nonstop2h 33m
Frontier
Deal found 3/21![Frontier logo]()
$74
This Super.com deal was found by Cheapflights users on 3/20. 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.
Sat 4/111:06 pm
STL
- DEN
1 stop9h 39m
Frontier
Deal found 3/20![Frontier logo]()
$75
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 March 22, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $79 (Cheapflightsfares) |
One-way from | $34 (Kiwi.com) |
Popular in | June |
Cheapest in | October |
Average price | $273 |
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 March 22, 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
St. LouisDenver
STL - DEN
STLDEN
Lambert-St Louis
Thu 4/16
9:40 pm-11:00 pm
Nonstop2h 20m
Denver Intl
Thu 4/23
6:00 am-12:30 pm
1 stop5h 30m
$231
St. LouisDenver
STL - DEN
STLDEN
Lambert-St Louis
Sun 5/31
8:30 am-9:50 am
Nonstop2h 20m
Denver Intl
Thu 6/4
8:45 pm-11:55 pm
Nonstop2h 10m
$284
St. LouisDenver
STL - DEN
STLDEN
Lambert-St Louis
Tue 4/7
8:54 am-10:27 am
Nonstop2h 33m
Denver Intl
Fri 4/10
5:45 pm-8:54 pm
Nonstop2h 09m
$289
St. LouisDenver
STL - DEN
STLDEN
Lambert-St Louis
Mon 5/4
5:59 pm-7:33 pm
Nonstop2h 34m
Denver Intl
Wed 5/6
1:49 pm-4:57 pm
Nonstop2h 08m
$291
St. LouisDenver
STL - DEN
STLDEN
Lambert-St Louis
Wed 4/15
8:25 am-1:35 pm
1 stop6h 10m
Denver Intl
Wed 5/27
11:00 am-5:55 pm
2 stops5h 55m
$309
St. LouisDenver
STL - DEN
STLDEN
Lambert-St Louis
Fri 8/14
5:10 am-6:37 am
Nonstop2h 27m
Denver Intl
Tue 8/18
5:34 pm-8:39 pm
Nonstop2h 05m
$347
Quickest round-trip
St. LouisDenver
STL - DEN
STLDEN
Lambert-St Louis
Thu 9/10
8:45 pm-10:00 pm
Nonstop2h 15m
Denver Intl
Tue 9/15
6:35 am-9:35 am
Nonstop2h 00m
$347
St. LouisDenver
STL - DEN
STLDEN
Lambert-St Louis
Fri 9/18
8:45 pm-10:00 pm
Nonstop2h 15m
Denver Intl
Mon 9/21
6:25 am-9:25 am
Nonstop2h 00m
$347
St. LouisDenver
STL - DEN
STLDEN
Lambert-St Louis
Wed 4/15
8:54 am-10:27 am
Nonstop2h 33m
Denver Intl
Sun 4/19
5:45 pm-8:54 pm
Nonstop2h 09m
$349
St. LouisDenver
STL - DEN
STLDEN
Lambert-St Louis
Mon 6/22
8:15 pm-12:53 am
1 stop5h 38m
Denver Intl
Fri 7/3
8:45 pm-11:57 pm
Nonstop2h 12m
$357
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
How far ahead should I book a flight from St. Louis to Aurora?
Use this chart to determine the optimal time to book a round-trip flight from St. Louis to Aurora. Price data was last updated on March 13, 2026.
The price you pay for your flight from St. Louis to Aurora may vary depending on when you book. For the best chance of a lower fare, look to book 71 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.
What is the cheapest month to book a flight from St. Louis to Aurora?
Currently, October is the cheapest month in which you can book a flight from St. Louis to Aurora (average of $51). Flying from St. Louis to Aurora in June is currently the most expensive (average of $127). 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 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 March 22, 2026.
It’s optimal to fly from St. Louis to Aurora in the evening. By choosing this option you can save up to 58% on the cost of your flight, compared to a flight at noon.
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 March 14, 2026.
Travelers seeking maximum savings on their St. Louis to Aurora flight should consider departing on Saturday evenings when fares are most often at their lowest. Tuesday at noon flights should be avoided if possible as fares are typically the most expensive at this time.
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 March 22, 2026.
The most flights from STL to 9UR are scheduled on a Friday (16 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (6 on average).
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 March 22, 2026.
See what other customers who have flown with Southwest,Delta, andUnited Airlines 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.
Entertainment
7.5
Boarding
8.1
Food
7.0
Crew
8.6
Comfort
8.0
Overall
8.0
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Entertainment
7.5
Boarding
8.1
Food
7.0
Crew
8.6
Comfort
8.0
Overall
8.0
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Entertainment
7.5
Boarding
8.1
Food
7.0
Crew
8.6
Comfort
8.0
Overall
8.0
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Entertainment
7.5
Boarding
8.1
Food
7.0
Crew
8.6
Comfort
8.0
Overall
8.0
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Entertainment
7.5
Boarding
8.1
Food
7.0
Crew
8.6
Comfort
8.0
Overall
8.0
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Entertainment
7.5
Boarding
8.1
Food
7.0
Crew
8.6
Comfort
8.0
Overall
8.0
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Related info for your journey
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St. Louis and Aurora flights
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| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$56 | Average$133 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$108 | Average$333 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$157 | Average$374 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$175 | Average$333 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$201 | Average$304 | FlexibilityNo cancel fee | On-time71% |