$47+ Cheap flights from St. Louis (STL) to the United States
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 8/24. Fares are subject to change and may not be available on all flights or dates of travel.
Find cheap flights from St. Louis to USA with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from St. Louis to USA
Keep the following information in mind while searching for St. Louis to USA flight deals. Data was last updated May 18, 2025.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | Flightnetwork 3 stars |
Round-trip from | $106 (Cheapflightsfares) |
One-way from | $47 (Mytrip) |
Popular in | November |
Cheapest in | April |
Average price | $289 |
Good round-trip deal | $62 or less |
Good one-way deal | $90 or less |
Find flight deals from St. Louis to USA
Cheapest flights from St. Louis to USAExplore the most affordable flight options available from St. Louis to USA. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 18, 2025.
Explore the most affordable flight options available from St. Louis to USA. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 18, 2025.
This Cheapflightsfares deal was found by Cheapflights users on 5/17. 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.
This Kiwi.com deal was found by Cheapflights users on 5/17. 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.
This Cheapflightsfares deal was found by Cheapflights users on 5/17. 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.
This Kiwi.com deal was found by Cheapflights users on 5/17. 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.
This CheapOair deal was found by Cheapflights users on 5/17. 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.
This Mytrip deal was found by Cheapflights users on 5/17. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This American Airlines deal was found by Cheapflights users on 5/18. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Delta deal was found by Cheapflights users on 5/17. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Southwest deal was found by Cheapflights users on 5/18. 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.
This Mytrip deal was found by Cheapflights users on 5/18. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Frontier deal was found by Cheapflights users on 5/18. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This American Airlines deal was found by Cheapflights users on 5/17. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Cheapflights Fare Finder
Customize your flight search to find flights from St. Louis to USA 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 18, 2025.
Use the filters below to find and compare flights from St. Louis to the United States that are best for you.
Fly from
Fly to
Route
Depart
Return
Price
St. LouisDenver
STL - DEN
STLDEN
Lambert-St Louis
Wed 10/1
7:52 pm-9:20 pm
Nonstop2h 28m
Denver Intl
Sun 10/5
6:00 am-9:07 am
Nonstop2h 07m
St. LouisOrlando
STL - MCO
STLMCO
Lambert-St Louis
Sat 6/7
10:10 am-8:37 pm
1 stop9h 27m
Orlando
Tue 6/10
9:59 pm-11:37 pm
Nonstop2h 38m
St. LouisOrlando
STL - MCO
STLMCO
Lambert-St Louis
Fri 9/12
2:12 pm-5:36 pm
Nonstop2h 24m
Orlando
Mon 9/15
11:38 am-1:17 pm
Nonstop2h 39m
St. LouisLas Vegas
STL - LAS
STLLAS
Lambert-St Louis
Wed 8/20
7:52 pm-11:32 pm
1 stop5h 40m
Las Vegas Harry Reid Intl
Fri 8/22
8:09 am-1:34 pm
Nonstop3h 25m
St. LouisLas Vegas
STL - LAS
STLLAS
Lambert-St Louis
Sun 6/1
2:27 pm-4:05 pm
Nonstop3h 38m
Las Vegas Harry Reid Intl
Fri 6/6
5:00 pm-9:15 am
1 stop14h 15m
St. LouisOrlando
STL - MCO
STLMCO
Lambert-St Louis
Thu 6/12
6:36 pm-9:08 pm
1 stop25h 32m
Orlando
Sun 6/15
6:37 am-5:04 pm
1 stop11h 27m
St. LouisDenver
STL - DEN
STLDEN
Lambert-St Louis
Sat 9/13
7:34 am-2:28 pm
1 stop7h 54m
Denver Intl
Wed 9/17
7:12 am-1:55 pm
1 stop5h 43m
St. LouisSeattle
STL - SEA
STLSEA
Lambert-St Louis
Sat 8/30
5:30 pm-10:15 pm
1 stop6h 45m
Seattle/Tacoma Intl
Sat 9/13
9:40 am-5:57 pm
1 stop6h 17m
St. LouisSeattle
STL - SEA
STLSEA
Lambert-St Louis
Sat 7/26
3:25 pm-12:15 am
1 stop10h 50m
Seattle/Tacoma Intl
Tue 7/29
10:55 pm-8:15 am
1 stop7h 20m
St. LouisNew York
STL - LGA
STLLGA
Lambert-St Louis
Thu 6/12
6:36 pm-10:16 pm
2 stops26h 40m
New York LaGuardia
Mon 6/16
6:30 am-6:18 pm
1 stop12h 48m
Best time to book a flight from St. Louis to USA
Have a flexible travel schedule? Discover the best time to fly to USA from St. Louis with our price prediction graph.
Cheapflights Insights
Everything you need to know about your flight from St. Louis to the United States
What is the cheapest month to book a flight from St. Louis to USA?
Currently, January is the cheapest month in which you can book a flight from St. Louis to USA (average of $246). Flying from St. Louis to USA in March is currently the most expensive (average of $327). 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 US?
Find hourly flight availability from St. Louis to USA. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated May 18, 2025.
When flying from St. Louis to USA, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.
Weekly flight availability from St. Louis to USA
Explore weekly flight availability from St. Louis to USA. 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 18, 2025.
The most flights from STL to US0 are scheduled on a Tuesday (12 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (9 on average).
Rainfall in USA by month
Plan your trip to USA by taking into account the average rainfall totals by month.
In terms of precipitation, rainfall in USA ranges from 2.8 - 4.5 inches per month. July is typically the wettest month, when rainfall can reach 4.5 in. February is typically the driest time to visit USA when rainfall is around 2.8 in.
Temperature in USA by month
Plan your trip to USA by taking into account the average temperature totals by month.
If weather is an important factor for your trip to USA, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 77.0 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 33.8 F).
Reviews of airlines servicing USA
Get insights into the airlines that provide service to USA. 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 USA. Reviews last updated May 18, 2025.
Read reviews from past customers who have flown Alaska Airlines, Southwest and Delta from St. Louis to USA. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Comfort
Boarding
Entertainment
Food
Overall
Crew
Reviews
James,Apr 2025
LAX - SFO
Comfort
Boarding
Entertainment
Food
Overall
Crew
Reviews
James,Apr 2025
LAX - SFO
Comfort
Boarding
Entertainment
Food
Overall
Crew
Reviews
James,Apr 2025
LAX - SFO
Comfort
Boarding
Entertainment
Food
Overall
Crew
Reviews
James,Apr 2025
LAX - SFO
Comfort
Boarding
Entertainment
Food
Overall
Crew
Reviews
James,Apr 2025
LAX - SFO
Comfort
Boarding
Entertainment
Food
Overall
Crew
Reviews
James,Apr 2025
LAX - SFO
Related info for your journey
Find useful and relevant information for your journey from St. Louis to USA. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Browse thousands of different options on Cheapflights for your next trip
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Alternative routes for St. Louis to USA
See prices for flight routes from nearby airports that may be better suited for you.
Top 10 airlines flying from St. Louis to USA
Discover the top 10 airlines that operate flights from St. Louis to USA. 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 18, 2025.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$45 | Average$185 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$68 | Average$206 | FlexibilityNo cancel fee | On-time65% | |
| Cheapest$104 | Average$238 | FlexibilityNo cancel fee | On-time88% | |
| Cheapest$108 | Average$341 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$152 | Average$400 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$186 | Average$408 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$189 | Average$226 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$192 | Average$386 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$236 | Average$472 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$243 | Average$420 | FlexibilityNo cancel fee | On-time85% |