Cheap flights from St. Louis (STL) to the United States from $34
This is the cheapest one-way flight price, found on 9/25. Prices may vary by date and flight preferences.
How far in advance should I book a flight from St. Louis to USA?
Users have found that booking a flight from St. Louis to USA at least 30 days early can save you up to 56% on average compared to booking a flight this week. If booking 30 days before your flight isn’t an option for you, users have found flights from St. Louis to USA for as little as $362 when booking for a departure date within the next two weeks. You can also check prices now. Some users have found airline tickets as low as $480 for flights departing within the next 3 days.
What is the cheapest month to fly from St. Louis to USA?
Flights from St. Louis to USA lean towards being more expensive in June. Prices are generally better when you fly from St. Louis to USA in February, with the cheapest ticket starting at $173.
When is the cheapest time to fly from St. Louis to USA (STL - US)?
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.
Cheap Frontier flights from St. Louis to USA
Take a peek at the cheapest Frontier flights we've detected traveling from St. Louis to USA. Come back soon if you're not finding the exact deal you're looking for.
Cheap Delta flights from St. Louis to USA
To aid your search, here are some of the cheapest Delta flights we've found from St. Louis to USA. Ensure the flight price, dates, time, and airline match your criteria before you book.
Cheap St. Louis to USA flights in September & October 2023
The best prices found for STL to USA flights for September, October
These are some of the best deals we've found on flights to USA in 2023 at this time. Check back regularly for other flight deals.
St. Louis to USA 2023 flight deals
Cheap flights to USA from St. Louis found for this year
These are some of the best deals we've found on flights to USA in 2023 at this time. Check back regularly for other flight deals.
Non-stop flights to USA from St. Louis
Save time with St. Louis to USA direct flight deals
Take a look at some of the direct flights traveling from St. Louis to USA in the near future. Select from other flights from St. Louis to USA by using the search form above.
St. Louis to USA flights leaving soon
Late deals on return flights to USA from St. Louis, departing today and this week
Users seeking a last-minute flight from St. Louis to USA should consider booking one of these fares. Users should double check the flight they book to ensure it matches the day, time, and destination they're looking for.
One-way flights to USA from St. Louis
The cheapest one-way flights from St. Louis to USA
If you're seeking multiple options on one-way flights from St. Louis to USA, be sure to check out these deals, which are updated often. Those seeking round-trip flights from St. Louis to USA should utilize the search form at the the top of the page.
Find flights from St. Louis to USA within your budget
Use the slider to find flights from St. Louis to USA that fit your budget.
Fly from
Fly to
Budget
$40 - $70
Route
Depart
Return
Price
Lambert-St LouisDenver Intl
STL - DEN
STLDEN
Lambert-St Louis
Sat 10/21
Nonstop2h 36m
Denver Intl
Tue 10/24
Nonstop2h 04m
Lambert-St LouisOrlando
STL - MCO
STLMCO
Lambert-St Louis
Wed 10/25
Nonstop2h 23m
Orlando
Wed 11/1
Nonstop2h 34m
Lambert-St LouisOrlando
STL - MCO
STLMCO
Lambert-St Louis
Wed 11/1
Nonstop2h 28m
Orlando
Sat 11/4
Nonstop2h 34m
Lambert-St LouisDenver Intl
STL - DEN
STLDEN
Lambert-St Louis
Wed 10/18
Nonstop2h 36m
Denver Intl
Thu 10/19
Nonstop2h 07m
Lambert-St LouisOrlando
STL - MCO
STLMCO
Lambert-St Louis
Sat 11/4
Nonstop2h 28m
Orlando
Wed 11/8
Nonstop2h 42m
Lambert-St LouisOrlando
STL - MCO
STLMCO
Lambert-St Louis
Fri 12/8
Nonstop2h 30m
Orlando
Mon 12/11
Nonstop2h 30m
Lambert-St LouisOrlando
STL - MCO
STLMCO
Lambert-St Louis
Tue 10/17
Nonstop2h 23m
Orlando
Thu 10/19
Nonstop2h 35m
Lambert-St LouisOrlando
STL - MCO
STLMCO
Lambert-St Louis
Fri 10/27
Nonstop2h 24m
Orlando
Sat 11/4
Nonstop2h 34m
Lambert-St LouisOrlando
STL - MCO
STLMCO
Lambert-St Louis
Fri 11/3
Nonstop2h 24m
Orlando
Sun 11/5
Nonstop2h 36m
Reviews of airlines servicing USA
Read reviews from past customers who have flown Frontier, Delta and Spirit Airlines 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
Food
Entertainment
Crew
Boarding
Overall
Reviews
Really nothing. There was no food involved and I did not participate in any entertainment but the flight attendant who wins the gold star is Ralph on my flight from Portland to Sacramento! (7/24 take off at 6:15 am)
Comfort
Food
Entertainment
Crew
Boarding
Overall
Reviews
Really nothing. There was no food involved and I did not participate in any entertainment but the flight attendant who wins the gold star is Ralph on my flight from Portland to Sacramento! (7/24 take off at 6:15 am)
Comfort
Food
Entertainment
Crew
Boarding
Overall
Reviews
Really nothing. There was no food involved and I did not participate in any entertainment but the flight attendant who wins the gold star is Ralph on my flight from Portland to Sacramento! (7/24 take off at 6:15 am)
Comfort
Food
Entertainment
Crew
Boarding
Overall
Reviews
Really nothing. There was no food involved and I did not participate in any entertainment but the flight attendant who wins the gold star is Ralph on my flight from Portland to Sacramento! (7/24 take off at 6:15 am)
Comfort
Food
Entertainment
Crew
Boarding
Overall
Reviews
Really nothing. There was no food involved and I did not participate in any entertainment but the flight attendant who wins the gold star is Ralph on my flight from Portland to Sacramento! (7/24 take off at 6:15 am)
Comfort
Food
Entertainment
Crew
Boarding
Overall
Reviews
Really nothing. There was no food involved and I did not participate in any entertainment but the flight attendant who wins the gold star is Ralph on my flight from Portland to Sacramento! (7/24 take off at 6:15 am)
Related info for your journey
Useful info, stats and facts about St. Louis to USA flights.
What airport do you fly from for flights from St. Louis to United States?
Lambert-St Louis (STL) is the airport you will fly out of if you book a flight from St. Louis to United States. It is only a 12.7 mi journey to Lambert-St Louis (STL) from St. Louis’s city center.
Can I find flights from St. Louis to USA for under $100 on Cheapflights?
Yes, there are multiple flights from St. Louis to USA for under $100. The cheapest flight booked recently is on Frontier for just $40, but on average you can expect to pay $66.
Are there nonstop flights from St. Louis to USA for under $100 on Cheapflights?
Cheapflights has at least 20 direct flights from St. Louis to USA under $100. A good price for a nonstop flight from St. Louis to USA is less than $70.
Are there last-minute flights available from St. Louis to USA for under $100?
There are currently 20+ open flights from St. Louis to USA within the next 7 days for less than $100.
How popular is this St. Louis to USA flight route?
Flights from Lambert-St Louis to United States have been viewed 17 times in the past calendar month.
What are the most popular routes from St. Louis to USA?
The most popular flight routes from St. Louis to USA are Lambert-St Louis - Las Vegas Harry Reid Intl, Lambert-St Louis - New York LaGuardia and Lambert-St Louis - Dallas/Fort Worth.
What are the most popular airlines that fly from St. Louis to USA?
Consider American Airlines, Alaska Airlines or Delta when booking your flight. These represent the most popular airlines when flying from St. Louis to USA.
What are the most reliable airlines from St. Louis to USA?
Before booking your flight to USA from St. Louis, check out the most reliable airlines to get you to your destination on time: Sun Country Air (100%), Southwest (69%), American Airlines( 64%).
What are the cheapest flights from St. Louis to USA?
Looking for the cheapest flight from St. Louis to USA? While on average our users pay $503, our data indicates the cheapest price to be $170. The most popular route (Lambert-St Louis - Las Vegas Harry Reid Intl), is priced around $83.
What does STL to LAX mean?
STL and LAX are unique codes to identify airports used in the aviation industry. They are defined by IATA (International Air Transport Association) and are commonly called IATA codes. STL to LAX refers to a flight route from Lambert-St Louis Airport to Los Angeles Airport. Miami Airport (MIA), San Francisco Airport (SFO), Boston Logan Intl Airport (BOS), New York John F Kennedy Intl Airport (JFK), Las Vegas Harry Reid Intl Airport (LAS) are some additional IATA codes for airports related to your trip.
Destination points for flights from St. Louis to USA
Select to see more specific information for flights from St. Louis to all places in USA
Top 9 airlines flying from St. Louis to USA
The chart below displays the airlines Cheapflights users traveling from St. Louis to USA choose most often. Cheapest and average prices are based on aggregated data from the past 12 months.
Hourly flight availability from St. Louis to USA
See what time of day planes typically take off from St. Louis to USA
| 16%of flight departures | Early morningMidnight to 6 am |
|---|---|
| 34%of flight departures | Morning6 am to noon |
| 42%of flight departures | AfternoonNoon to 6 pm |
| 8%of flight departures | Evening6 pm to midnight |
Fly with Cheapflights
What makes Cheapflights the go-to destination for all your flight needs
How does Cheapflights help users find flights from St. Louis to USA?
Cheapflights helps you search for flights from St. Louis to USA via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.
Why should you use Cheapflights to find cheap flight tickets from St. Louis to USA?
Cheapflights simply makes it quick and affordable to book flights from St. Louis to USA by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.
Can Cheapflights find flights from St. Louis to USA with no change fees?
Yes! Cheapflights helps users easily find flights from St. Louis to USA with no change fees.
Can Cheapflights notify me if prices for flights from St. Louis to USA become cheaper?
Yes, Cheapflights has a feature called Price Alert, which essentially offers users the ability to be notified when flight prices change. Track prices for your flight to USA from St. Louis today and book when you’re ready!