$27+ 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 5/26. Fares are subject to change and may not be available on all flights or dates of travel.
STL — DEN
Jun 8 — Jun 151
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 May 9, 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 May 9, 2026.
This Frontier deal was found by Cheapflights users on 5/4. 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 6/68:08 pm
STL
- DEN
Nonstop2h 33m
Frontier
Tue 6/94:12 pm
DEN
- STL
Nonstop2h 11m
Frontier
Deal found 5/4![Frontier logo]()
$102
This Super.com deal was found by Cheapflights users on 5/4. 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.
Tue 5/268:08 pm
STL
- DEN
Nonstop2h 33m
Frontier
Sat 5/304:15 pm
DEN
- STL
Nonstop2h 08m
Frontier
Deal found 5/4![Frontier logo]()
$107
This Frontier deal was found by Cheapflights users on 5/3. 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 8/278:08 pm
STL
- DEN
Nonstop2h 36m
Frontier
Sat 8/294:12 pm
DEN
- STL
Nonstop2h 11m
Frontier
Deal found 5/3![Frontier logo]()
$108
This Cheapflightsfares deal was found by Cheapflights users on 5/4. 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 5/268:08 pm
STL
- DEN
Nonstop2h 33m
Frontier
Wed 6/310:33 am
DEN
- STL
1 stop6h 33m
Frontier
Deal found 5/4![Frontier logo]()
$117
This Cheapflightsfares deal was found by Cheapflights users on 5/3. 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 5/276:51 pm
STL
- DEN
1 stop9h 34m
Frontier
Wed 6/34:15 pm
DEN
- STL
Nonstop2h 08m
Frontier
Deal found 5/3![Frontier logo]()
$123
This Super.com deal was found by Cheapflights users on 5/5. 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.
Tue 5/268:08 pm
STL
- DEN
Nonstop2h 33m
Frontier
Sat 6/64:15 pm
DEN
- STL
Nonstop2h 08m
Frontier
Deal found 5/5![Frontier logo]()
$124
This Cheapflightsfares deal was found by Cheapflights users on 5/4. 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 5/196:51 pm
STL
- DEN
1 stop15h 47m
Frontier
Tue 5/264:15 pm
DEN
- STL
Nonstop2h 08m
Frontier
Deal found 5/4![Frontier logo]()
$132
This Frontier deal was found by Cheapflights users on 5/7. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/308:08 pm
STL
- DEN
Nonstop2h 33m
Frontier
Wed 6/34:15 pm
DEN
- STL
Nonstop2h 08m
Frontier
Deal found 5/7![Frontier logo]()
$134
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 May 9, 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 May 9, 2026.
This Super.com deal was found by Cheapflights users on 5/8. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/68:08 pm
STL
- DEN
Nonstop2h 33m
Frontier
Tue 6/94:12 pm
DEN
- STL
Nonstop2h 11m
Frontier
Deal found 5/8![Frontier logo]()
$178
This United Airlines deal was found by Cheapflights users on 5/8. 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.
Tue 6/235:10 am
STL
- DEN
Nonstop2h 22m
United Airlines
Thu 6/255:34 pm
DEN
- STL
Nonstop2h 09m
United Airlines
Deal found 5/8![United Airlines logo]()
$292
This KAYAK deal was found by Cheapflights users on 5/7. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/88:14 pm
STL
- DEN
1 stop5h 03m
American Airlines
Thu 6/115:45 pm
DEN
- STL
1 stop5h 31m
American Airlines
Deal found 5/7![American Airlines logo]()
$349
This Southwest deal was found by Cheapflights users on 5/8. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/238:35 am
STL
- DEN
2 stops6h 00m
Southwest
Thu 6/257:40 am
DEN
- STL
2 stops5h 30m
Southwest
Deal found 5/8![Southwest logo]()
$385
This Kiwi.com deal was found by Cheapflights users on 5/8. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/238:08 pm
STL
- DEN
Nonstop2h 36m
Frontier
Thu 6/2511:59 pm
DEN
- STL
2 stops31h 53m
Frontier
Deal found 5/8![Frontier logo]()
$282
This Alaska Airlines deal was found by Cheapflights users on 5/4. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/75:33 pm
STL
- DEN
1 stop25h 52m
Alaska Airlines
Wed 6/106:02 am
DEN
- STL
2 stops9h 35m
Alaska Airlines
Deal found 5/4![Alaska Airlines logo]()
$604
This United Airlines deal was found by Cheapflights users on 5/4. 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 5/291:38 pm
STL
- DEN
Nonstop2h 22m
United Airlines
Sun 5/318:45 pm
DEN
- STL
Nonstop2h 12m
United Airlines
Deal found 5/4![United Airlines logo]()
$367
This Southwest deal was found by Cheapflights users on 5/8. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/188:10 am
STL
- DEN
1 stop4h 45m
Southwest
Sat 6/2010:10 am
DEN
- STL
2 stops6h 50m
Southwest
Deal found 5/8![Southwest logo]()
$412
This United Airlines deal was found by Cheapflights users on 5/7. 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.
Tue 6/94:48 pm
STL
- DEN
Nonstop2h 35m
United Airlines
Thu 6/116:00 am
DEN
- STL
1 stop5h 11m
United Airlines
Deal found 5/7![United Airlines logo]()
$375
This United Airlines deal was found by Cheapflights users on 5/8. 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.
Thu 6/255:10 am
STL
- DEN
Nonstop2h 23m
United Airlines
Thu 6/255:34 pm
DEN
- STL
Nonstop2h 09m
United Airlines
Deal found 5/8![United Airlines logo]()
$447
This United Airlines deal was found by Cheapflights users on 5/6. 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 5/168:46 am
STL
- DEN
Nonstop2h 34m
United Airlines
Wed 5/201:49 pm
DEN
- STL
Nonstop2h 08m
United Airlines
Deal found 5/6![United Airlines logo]()
$517
Last-minute flights from St. Louis to AuroraDiscover last-minute flight deals from St. Louis to Aurora. Data last updated May 9, 2026 and is based on user searches.
Discover last-minute flight deals from St. Louis to Aurora. Data last updated May 9, 2026 and is based on user searches.
This Cheapflightsfares deal was found by Cheapflights users on 5/4. 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 5/196:51 pm
STL
- DEN
1 stop15h 47m
Frontier
Tue 5/264:15 pm
DEN
- STL
Nonstop2h 08m
Frontier
Deal found 5/4![Frontier logo]()
$132
This Super.com deal was found by Cheapflights users on 5/4. 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.
Tue 5/268:08 pm
STL
- DEN
Nonstop2h 33m
Frontier
Sat 5/304:15 pm
DEN
- STL
Nonstop2h 08m
Frontier
Deal found 5/4![Frontier logo]()
$107
This Cheapflightsfares deal was found by Cheapflights users on 5/4. 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 5/268:08 pm
STL
- DEN
Nonstop2h 33m
Frontier
Wed 6/310:33 am
DEN
- STL
1 stop6h 33m
Frontier
Deal found 5/4![Frontier logo]()
$117
This Super.com deal was found by Cheapflights users on 5/5. 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.
Tue 5/268:08 pm
STL
- DEN
Nonstop2h 33m
Frontier
Sat 6/64:15 pm
DEN
- STL
Nonstop2h 08m
Frontier
Deal found 5/5![Frontier logo]()
$124
This Frontier deal was found by Cheapflights users on 5/7. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/308:08 pm
STL
- DEN
Nonstop2h 33m
Frontier
Wed 6/34:15 pm
DEN
- STL
Nonstop2h 08m
Frontier
Deal found 5/7![Frontier logo]()
$134
This Frontier deal was found by Cheapflights users on 5/4. 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 6/68:08 pm
STL
- DEN
Nonstop2h 33m
Frontier
Tue 6/94:12 pm
DEN
- STL
Nonstop2h 11m
Frontier
Deal found 5/4![Frontier logo]()
$102
This Cheapflightsfares deal was found by Cheapflights users on 5/5. 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 6/168:08 pm
STL
- DEN
Nonstop2h 36m
Frontier
Tue 6/2310:09 am
DEN
- STL
1 stop7h 09m
Frontier
Deal found 5/5![Frontier logo]()
$138
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 May 9, 2026.
Search for one-way flight options from St. Louis to Aurora. Find affordable one-way fares based on user searches. Data last updated May 9, 2026.
This Kiwi.com deal was found by Cheapflights users on 5/4. 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 5/4![Frontier logo]()
$27
This Cheapflightsfares deal was found by Cheapflights users on 5/4. 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 6/238:08 pm
STL
- DEN
Nonstop2h 36m
Frontier
Deal found 5/4![Frontier logo]()
$28
This Kiwi.com deal was found by Cheapflights users on 5/5. 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 6/28:08 pm
STL
- DEN
Nonstop2h 33m
Frontier
Deal found 5/5![Frontier logo]()
$43
This Frontier deal was found by Cheapflights users on 5/4. 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.
Wed 7/18:08 pm
STL
- DEN
Nonstop2h 36m
Frontier
Deal found 5/4![Frontier logo]()
$64
This Kiwi.com deal was found by Cheapflights users on 5/5. 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 6/98:08 pm
STL
- DEN
Nonstop2h 36m
Frontier
Deal found 5/5![Frontier logo]()
$69
This Frontier deal was found by Cheapflights users on 5/4. 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 5/308:08 pm
STL
- DEN
Nonstop2h 33m
Frontier
Deal found 5/4![Frontier logo]()
$80
This Kiwi.com deal was found by Cheapflights users on 5/5. 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 5/255:27 pm
STL
- DEN
1 stop16h 38m
Frontier
Deal found 5/5![Frontier logo]()
$86
This Super.com deal was found by Cheapflights users on 5/6. 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 6/18:08 pm
STL
- DEN
Nonstop2h 33m
Frontier
Deal found 5/6![Frontier logo]()
$89
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 May 9, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $102 (Frontier) |
One-way from | $27 (Kiwi.com) |
Popular in | June |
Cheapest in | October |
Average price | $262 |
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 May 9, 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
Sat 6/6
8:08 pm-9:41 pm
Nonstop2h 33m
Denver Intl
Tue 6/9
4:12 pm-7:23 pm
Nonstop2h 11m
$178
St. LouisDenver
STL - DEN
STLDEN
Lambert-St Louis
Tue 6/23
8:08 pm-9:44 pm
Nonstop2h 36m
Denver Intl
Thu 6/25
11:59 pm-8:52 am
2 stops31h 53m
$282
Quickest round-trip
St. LouisDenver
STL - DEN
STLDEN
Lambert-St Louis
Tue 6/23
5:10 am-6:32 am
Nonstop2h 22m
Denver Intl
Thu 6/25
5:34 pm-8:43 pm
Nonstop2h 09m
$292
St. LouisDenver
STL - DEN
STLDEN
Lambert-St Louis
Mon 6/8
8:14 pm-12:17 am
1 stop5h 03m
Denver Intl
Thu 6/11
5:45 pm-12:16 am
1 stop5h 31m
$349
St. LouisDenver
STL - DEN
STLDEN
Lambert-St Louis
Fri 5/29
1:38 pm-3:00 pm
Nonstop2h 22m
Denver Intl
Sun 5/31
8:45 pm-11:57 pm
Nonstop2h 12m
$367
St. LouisDenver
STL - DEN
STLDEN
Lambert-St Louis
Tue 6/9
4:48 pm-6:23 pm
Nonstop2h 35m
Denver Intl
Thu 6/11
6:00 am-12:11 pm
1 stop5h 11m
$375
St. LouisDenver
STL - DEN
STLDEN
Lambert-St Louis
Tue 6/23
8:35 am-1:35 pm
2 stops6h 00m
Denver Intl
Thu 6/25
7:40 am-2:10 pm
2 stops5h 30m
$385
St. LouisDenver
STL - DEN
STLDEN
Lambert-St Louis
Thu 6/18
8:10 am-11:55 am
1 stop4h 45m
Denver Intl
Sat 6/20
10:10 am-6:00 pm
2 stops6h 50m
$412
St. LouisDenver
STL - DEN
STLDEN
Lambert-St Louis
Thu 6/25
5:10 am-6:33 am
Nonstop2h 23m
Denver Intl
Thu 6/25
5:34 pm-8:43 pm
Nonstop2h 09m
$447
St. LouisDenver
STL - DEN
STLDEN
Lambert-St Louis
Sat 5/16
8:46 am-10:20 am
Nonstop2h 34m
Denver Intl
Wed 5/20
1:49 pm-4:57 pm
Nonstop2h 08m
$517
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 May 9, 2026.
It’s optimal to fly from St. Louis to Aurora in the evening. By choosing this option you can save up to 55% 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 May 2, 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 May 9, 2026.
The most flights from STL to 9UR are scheduled on a Thursday (15 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (2 on average).
How much does it cost to fly round-trip from St. Louis to Aurora?
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 May 9, 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.
Food
7.0
Entertainment
7.5
Comfort
8.0
Crew
8.6
Overall
8.0
Boarding
8.1
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Food
7.0
Entertainment
7.5
Comfort
8.0
Crew
8.6
Overall
8.0
Boarding
8.1
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Food
7.0
Entertainment
7.5
Comfort
8.0
Crew
8.6
Overall
8.0
Boarding
8.1
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Food
7.0
Entertainment
7.5
Comfort
8.0
Crew
8.6
Overall
8.0
Boarding
8.1
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Food
7.0
Entertainment
7.5
Comfort
8.0
Crew
8.6
Overall
8.0
Boarding
8.1
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Food
7.0
Entertainment
7.5
Comfort
8.0
Crew
8.6
Overall
8.0
Boarding
8.1
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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Find flights from St. Louis to Aurora, based on your preferred cabin class, be it economy, premium economy, business, or first class.
St. Louis and Aurora flights
Browse other St. Louis and Aurora flight options. Last updated on May 9, 2026.
Other flights from St. Louis
Browse through other flights departing from St. Louis. Flights are based on user searches made on Cheapflights and were last updated on May 9, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
St. Louis to Aurora flights
Consider these flights traveling from St. Louis to Aurora.
Top 5 airlines flying from St. Louis to Aurora
Discover the top 5 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 May 9, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$56 | Average$137 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$161 | Average$351 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$168 | Average$329 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$178 | Average$340 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$201 | Average$300 | FlexibilityNo cancel fee | On-time71% |