Find cheap United Airlines flights to St. Louis
ICT — STL
Nov 2 — Nov 91
Round-trip
1 adult, Economy
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Cheapest United Airlines flights from USA to St. LouisExplore the most affordable United Airlines flight options available from USA to St. Louis. Find the lowest fares with prices last updated on October 3, 2026.
Explore the most affordable United Airlines flight options available from USA to St. Louis. Find the lowest fares with prices last updated on October 3, 2026.
This United Airlines deal was found by Cheapflights users on 9/29. 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 10/285:52 pm -
Nonstop2h 07m
Sat 10/318:50 am -
Nonstop2h 31m
Deal found 9/29![United Airlines logo]()
$177
This United Airlines deal was found by Cheapflights users on 9/29. 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 10/228:28 pm -
Nonstop2h 16m
Sat 10/249:00 am -
Nonstop2h 30m
Deal found 9/29![United Airlines logo]()
$277
This United Airlines deal was found by Cheapflights users on 9/30. 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 10/238:30 am -
1 stop4h 43m
Sat 10/248:00 am -
1 stop5h 23m
Deal found 9/30![United Airlines logo]()
$286
Best United Airlines flights from USA to St. LouisDiscover carefully curated United Airlines flight deals from USA to St. Louis that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 3, 2026.
Discover carefully curated United Airlines flight deals from USA to St. Louis that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 3, 2026.
This United Airlines deal was found by Cheapflights users on 9/29. 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 10/279:35 am -
Nonstop2h 03m
Tue 11/31:40 pm -
Nonstop2h 29m
Deal found 9/29![United Airlines logo]()
$177
This United Airlines deal was found by Cheapflights users on 9/30. 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 10/238:30 am -
1 stop4h 43m
Sat 10/248:00 am -
1 stop5h 23m
Deal found 9/30![United Airlines logo]()
$286
This United Airlines deal was found by Cheapflights users on 9/30. 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 10/273:32 pm -
1 stop7h 08m
Fri 10/305:00 am -
1 stop6h 14m
Deal found 9/30![United Airlines logo]()
$292
Direct United Airlines flights from USA to St. LouisExplore non-stop United Airlines flight options from USA to St. Louis based on user searches, and compare prices and availability for your desired travel dates. Data last updated October 3, 2026.
Explore non-stop United Airlines flight options from USA to St. Louis based on user searches, and compare prices and availability for your desired travel dates. Data last updated October 3, 2026.
This United Airlines deal was found by Cheapflights users on 9/29. 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 10/285:52 pm -
Nonstop2h 07m
Sat 10/318:50 am -
Nonstop2h 31m
Deal found 9/29![United Airlines logo]()
$177
This United Airlines deal was found by Cheapflights users on 9/29. 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 1/299:45 am -
Nonstop1h 58m
Tue 2/29:13 am -
Nonstop2h 22m
Deal found 9/29![United Airlines logo]()
$204
This United Airlines deal was found by Cheapflights users on 9/29. 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 12/226:00 pm -
Nonstop2h 08m
Wed 12/236:09 pm -
Nonstop2h 36m
Deal found 9/29![United Airlines logo]()
$268
Last-minute United Airlines flights from USA to St. LouisDiscover last-minute United Airlines flight deals from USA to St. Louis. Data last updated October 3, 2026 and is based on user searches.
Discover last-minute United Airlines flight deals from USA to St. Louis. Data last updated October 3, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 9/29. 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 10/285:52 pm -
Nonstop2h 07m
Sat 10/318:50 am -
Nonstop2h 31m
Deal found 9/29![United Airlines logo]()
$177
This United Airlines deal was found by Cheapflights users on 9/29. 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 10/228:28 pm -
Nonstop2h 16m
Sat 10/249:00 am -
Nonstop2h 30m
Deal found 9/29![United Airlines logo]()
$277
This United Airlines deal was found by Cheapflights users on 9/30. 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 10/238:30 am -
1 stop4h 43m
Sat 10/248:00 am -
1 stop5h 23m
Deal found 9/30![United Airlines logo]()
$286
One-way United Airlines flights to St. LouisSearch for one-way United Airlines flight options to St. Louis. Find affordable one-way fares based on user searches. Data last updated October 3, 2026.
Search for one-way United Airlines flight options to St. Louis. Find affordable one-way fares based on user searches. Data last updated October 3, 2026.
This United Airlines deal was found by Cheapflights users on 9/30. 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 10/273:32 pm -
1 stop7h 08m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/30![United Airlines logo]()
$74
This United Airlines deal was found by Cheapflights users on 9/30. 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 10/295:52 pm -
Nonstop2h 07m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/30![United Airlines logo]()
$89
This United Airlines deal was found by Cheapflights users on 9/29. 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 12/295:50 am -
1 stop5h 36m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/29![United Airlines logo]()
$99
Flights to St. Louis with United Airlines at a glance
Find detailed information about United Airlines flights from USA to St. Louis. Explore the options provided by United Airlines to plan your journey from USA to St. Louis. Data last updated October 3, 2026.
Popular in | March |
|---|---|
Cheapest in | December |
Average price | $459 |
Round-trip from | $177 |
One-way from | $74 |
Good round-trip deal | $403 or less |
Good one-way deal | $177 or less |
Cheapflights Insights
Find cheap United Airlines flights to St. Louis
US0-STL
DEN-STL
DCA-STL
ATL-STL
How long is the flight to St. Louis with United Airlines?
On average, United Airlines flights from the United States to St. Louis take 2 hours 4 minutes. Flights to St. Louis from other popular cities in the United States will vary in length. Below are a few examples of popular routes and their flight times.
United Airlines weekly flight availability to St. Louis
The most flights to St. Louis operated by United Airlines are scheduled on a Sunday (32 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (26 on average).
When is the best time to book a flight to St. Louis with United Airlines?
The best time to book a flight to St. Louis with United Airlines is 64 days before departure. On average, fares are higher if you book 1 day before departure.
When is the cheapest time to fly to St. Louis with United Airlines?
Users looking for the cheapest United Airlines fares to St. Louis should consider flying on Saturday afternoons, when prices are typically cheapest. Budget-minded travellers will want to avoid Monday afternoons, when prices are usually at their highest.
FAQs about flights to St. Louis with United Airlines
Reviews of United Airlines
See what Cheapflights users have to say about their United Airlines experience.
Overview
Reviews
United Airlines
10,000 reviews
Overview
Comfort
7.3
Entertainment
7.1
Food
6.7
Boarding
7.7
Crew
8.1
Recent reviews
10.0
|Oct 2026Is good
10.0
|Sep 2026Everything was good
8.0
|Sep 2026The flight was on time and boardi g was very organized and timely. Snacks are awful and having one little glass of juice was terrible. Fortunately, I had my water to keep me hydrated.
10.0
|Aug 2026Staff friendly, good boarding experience
4.0
|Aug 2026Had to go through TSA again, already purchased bottle drink. TSA would not let through, United changed gates last minute. This experience bad for everyone. Staff rude, not our fault. Staff from Chicago to Wichita excellent!
1 out of 3334
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