Cheap flights from St. Louis (STL) to USA

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How to find the cheapest flight from
St. Louis (STL) to USA

All the information you need to plan the best STL to LAX flight in 2021: compare St. Louis to USA flight prices with the expected peak season, weather and rainfall in USA.
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.

What is the cheapest month to fly from St. Louis to USA?

Flights from St. Louis to USA lean towards being more expensive in March. Prices are generally better when you fly from St. Louis to USA in September, with the cheapest ticket starting at $113.

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 25 days early can save you up to 23% on average compared to booking a flight this week. If booking 25 days before your flight isn’t an option for you, users have found flights from St. Louis to USA for as little as $177 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 $216 for flights departing within the next 3 days.

Cheap flights from St. Louis to USA in October, November 2021

The best prices found for STL to USA flights for October, November
26 Oct - 10 Nov
$35pp
STL
Lambert-St Louis
Spirit Airlines
Non-Stop
MCO
Orlando
MCO
Orlando
Spirit Airlines
Non-Stop
STL
Lambert-St Louis
27 Oct - 28 Oct
$36pp
STL
Lambert-St Louis
Spirit Airlines
Non-Stop
MCO
Orlando
MCO
Orlando
Spirit Airlines
Non-Stop
STL
Lambert-St Louis
13 Nov - 17 Nov
$37pp
STL
Lambert-St Louis
Spirit Airlines
Non-Stop
FLL
Fort Lauderdale
FLL
Fort Lauderdale
Spirit Airlines
Non-Stop
STL
Lambert-St Louis

Lambert-St Louis to USA 2021 flight deals

Cheap flights to USA from St. Louis found for this year
26 Oct - 10 Nov
$35pp
STL
Lambert-St Louis
Spirit Airlines
Non-Stop
MCO
Orlando
MCO
Orlando
Spirit Airlines
Non-Stop
STL
Lambert-St Louis
27 Oct - 28 Oct
$36pp
STL
Lambert-St Louis
Spirit Airlines
Non-Stop
MCO
Orlando
MCO
Orlando
Spirit Airlines
Non-Stop
STL
Lambert-St Louis
11 Dec - 14 Dec
$37pp
STL
Lambert-St Louis
Spirit Airlines
Non-Stop
MCO
Orlando
MCO
Orlando
Spirit Airlines
Non-Stop
STL
Lambert-St Louis

Non-stop flights to USA from St. Louis

Save time with St. Louis to USA direct flight deals
3 Nov - 4 Nov
$35pp
STL
Lambert-St Louis
Spirit Airlines
Non-Stop
MCO
Orlando
MCO
Orlando
Spirit Airlines
Non-Stop
STL
Lambert-St Louis
13 Nov - 17 Nov
$37pp
STL
Lambert-St Louis
Spirit Airlines
Non-Stop
FLL
Fort Lauderdale
FLL
Fort Lauderdale
Spirit Airlines
Non-Stop
STL
Lambert-St Louis
11 Dec - 14 Dec
$37pp
STL
Lambert-St Louis
Spirit Airlines
Non-Stop
MCO
Orlando
MCO
Orlando
Spirit Airlines
Non-Stop
STL
Lambert-St Louis

Last minute flights from St. Louis to USA

Late deals on round-trip flights to USA from St. Louis, departing today and this week
26 Oct - 10 Nov
$35pp
STL
Lambert-St Louis
Spirit Airlines
Non-Stop
MCO
Orlando
MCO
Orlando
Spirit Airlines
Non-Stop
STL
Lambert-St Louis
27 Oct - 28 Oct
$36pp
STL
Lambert-St Louis
Spirit Airlines
Non-Stop
MCO
Orlando
MCO
Orlando
Spirit Airlines
Non-Stop
STL
Lambert-St Louis
30 Oct - 2 Nov
$48pp
STL
Lambert-St Louis
Spirit Airlines
Non-Stop
FLL
Fort Lauderdale
FLL
Fort Lauderdale
Spirit Airlines
Non-Stop
STL
Lambert-St Louis

One-way flights to USA from St. Louis

The cheapest one-way flights from St. Louis to USA
3:00 am - 6:17 am
Spirit Airlines
Nonstop
2h 17m
STL - MCO
Spirit Airlines
$17
FlyFar
1:38 pm - 5:23 pm
Spirit Airlines
Nonstop
2h 45m
STL - FLL
Spirit Airlines
$18
FlightNetwork
2:59 pm - 6:44 pm
Spirit Airlines
Nonstop
2h 45m
STL - FLL
Spirit Airlines
$19
CheapOair

Related info for your journey

Useful info, stats and facts about <span class="emphasized">St. Louis</span> to <span class="emphasized">USA</span> flights.

Flight FAQs

From St. Louis to USA

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.

Which airlines flying from Lambert-St Louis to United States have flexible cancellations due to COVID-19?

Frontier, American Airlines, and Delta are some of the carriers that may have flexible cancellation policies. You can use our site to filter for other airlines that may also have this kind of flexibility.

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 Spirit Airlines for just $35, but on average you can expect to pay $46.

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 $46.

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 219 times in the past calendar month.

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 $790, our data indicates the cheapest price to be $106. The most popular route (Lambert-St Louis - New York LaGuardia), is priced around $100.

What are the most popular airlines that fly from St. Louis to USA?

Consider Major Airline, American Airlines or Alaska Airlines 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: Fiji Airways (100%), United Airlines (100%), Iberia( 92%).

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 - New York LaGuardia, Lambert-St Louis - Las Vegas McCarran and Lambert-St Louis - Orlando.

Related searches

Flights to USA from St. Louis (STL)
Flights to St. Louis Flights to USA

Rent a Car

Car Rentals in USA

COVID Restrictions

View COVID Travel Restrictions for USA

Do I need a COVID test to fly to USA from St. Louis?

Information is based on travel restrictions for travel to USA within the United States

Most visitors from Lambert-St Louis need to provide a negative COVID-19 test result and/or quarantine to enter USA.

COVID-19 testing requirements
Visitors from Lambert-St Louis must present a negative RT-PCR (NAAT) or Antigen (quick-test) test taken 72 hours before departing to USA.

Quarantine requirements
Visitors from Lambert-St Louis are not required to quarantine after entering USA.

Do I need a test to fly back to St. Louis from USA?

Returning to Lambert-St Louis from USA

COVID-19 testing requirements
Visitors from USA must present a negative RT-PCR (NAAT) or Antigen (quick-test) test taken 72 hours before departing to Lambert-St Louis.

Quarantine requirements
Visitors from USA are not required to quarantine after entering Lambert-St Louis.

Hide COVID Travel Restrictions for USA

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.
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Destination information for USA

Things to know before you go - useful duration and weather info for your trip from St. Louis to USA.
Flight duration from STL to United States
2h 30m

Airports servicing St. Louis

Top 8 airlines flying from Lambert-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.
Airline Cheapest Average Flexibility On-time COVID-19 safety
Sun Country Air
$58 $224 No cancel fee 83%
United Airlines
$67 $300 No cancel fee 69%
Frontier
$77 $230 No cancel fee 62%
American Airlines
$92 $331 No cancel fee 71%
Delta
$99 $312 No cancel fee N/A
Allegiant Air
$104 $220 No cancel fee 88%
Alaska Airlines
$139 $492 No cancel fee 75%
Southwest
$184 $503 No cancel fee 63%
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