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 2022: compare St. Louis to USA flight prices with the expected peak season, weather and rainfall in USA.
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.

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.

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 May, June 2022

The best prices found for STL to USA flights for May, June
3 Jun - 6 Jun
$86pp
STL
Lambert-St Louis
Spirit Airlines
Non-Stop
MCO
Orlando
MCO
Orlando
Spirit Airlines
Non-Stop
STL
Lambert-St Louis
31 May - 2 Jun
$112pp
STL
Lambert-St Louis
Spirit Airlines
Non-Stop
MCO
Orlando
MCO
Orlando
Spirit Airlines
Non-Stop
STL
Lambert-St Louis
1 Jun - 3 Jun
$114pp
STL
Lambert-St Louis
Multiple Airlines
Non-Stop
MCO
Orlando
MCO
Orlando
Frontier
Non-Stop
STL
Lambert-St Louis

Lambert-St Louis to USA 2022 flight deals

Cheap flights to USA from St. Louis found for this year
29 May - 7 Jun
$170pp
STL
Lambert-St Louis
Frontier
Non-Stop
DEN
Denver Intl
DEN
Denver Intl
Frontier
Non-Stop
STL
Lambert-St Louis
3 Jun - 7 Jun
$180pp
STL
Lambert-St Louis
Frontier
Non-Stop
DEN
Denver Intl
DEN
Denver Intl
Frontier
Non-Stop
STL
Lambert-St Louis
7 Jun - 14 Jun
$181pp
STL
Lambert-St Louis
Spirit Airlines
 
1 STOP
MIA
Miami
MIA
Miami
Spirit Airlines
 
1 STOP
STL
Lambert-St Louis

Non-stop flights to USA from St. Louis

Save time with St. Louis to USA direct flight deals
3 Aug - 10 Aug
$84pp
STL
Lambert-St Louis
Frontier
Non-Stop
MCO
Orlando
MCO
Orlando
Frontier
Non-Stop
STL
Lambert-St Louis
23 Aug - 25 Aug
$90pp
STL
Lambert-St Louis
Frontier
Non-Stop
MCO
Orlando
MCO
Orlando
Frontier
Non-Stop
STL
Lambert-St Louis
12 Jul - 20 Jul
$93pp
STL
Lambert-St Louis
Multiple Airlines
Non-Stop
MCO
Orlando
MCO
Orlando
Frontier
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
3 Jun - 6 Jun
$86pp
STL
Lambert-St Louis
Spirit Airlines
Non-Stop
MCO
Orlando
MCO
Orlando
Spirit Airlines
Non-Stop
STL
Lambert-St Louis
31 May - 2 Jun
$112pp
STL
Lambert-St Louis
Spirit Airlines
Non-Stop
MCO
Orlando
MCO
Orlando
Spirit Airlines
Non-Stop
STL
Lambert-St Louis
1 Jun - 3 Jun
$114pp
STL
Lambert-St Louis
Multiple Airlines
Non-Stop
MCO
Orlando
MCO
Orlando
Frontier
Non-Stop
STL
Lambert-St Louis

One-way flights to USA from St. Louis

The cheapest one-way flights from St. Louis to USA
2:17 pm - 5:56 pm
Frontier
Nonstop
2h 39m
STL - MCO
Frontier
$39
Flights by SU
1:48 pm - 5:09 pm
Spirit Airlines
Nonstop
2h 21m
STL - MCO
Spirit Airlines
$42
FlightNetwork
2:24 pm - 6:00 pm
Frontier
Nonstop
2h 36m
STL - MCO
Frontier
$43
JustFly

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?

Spirit Airlines, American Airlines, and Frontier 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 Frontier for just $84, but on average you can expect to pay $104.

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 $104.

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.

What days are nonstop flights available from St. Louis to USA?

Days when nonstop flights are available for this flight are: Monday.

How popular is this St. Louis to USA flight route?

Flights from Lambert-St Louis to United States have been viewed 136 times in the past calendar month.

How many flights depart from St. Louis to USA on average per day?

Travelers can expect 1 flight from St. Louis to USA on average per day.
Afternoon (Noon - 6pm) - 100% of flight departures

How long is the flight from St. Louis to USA?

For as low as $84, Frontier can have you in USA from St. Louis in 2h 39m. The distance between St. Louis and USA is about 1597 mi. All flights are typically nonstop.

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 $804, our data indicates the cheapest price to be $28. The most popular route (Lambert-St Louis - Seattle/Tacoma Intl), is priced around $218.

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: Japan Airlines (95%), Qatar Airways (91%), Malaysia Airlines( 91%).

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 popular routes from St. Louis to USA?

The most popular flight routes from St. Louis to USA are Lambert-St Louis - Seattle/Tacoma Intl, Lambert-St Louis - Las Vegas Harry Reid Intl and Lambert-St Louis - Denver Intl.

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 1 day for RT-PCR (NAAT) and 1 day for Antigen (quick-test) 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 1 day for RT-PCR (NAAT) and 1 day for Antigen (quick-test) 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 47m

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
Juneyao Airlines
$9 $20 No cancel fee 66%

We couldn't confirm the COVID-19 safety measures taken by Juneyao Airlines. Please check directly on their website for additional information.

Frontier
$38 $232 No cancel fee 62%
Spirit Airlines
$40 $186 No cancel fee 65%
American Airlines
$84 $371 No cancel fee 71%
Delta
$88 $325 No cancel fee N/A
United Airlines
$97 $324 No cancel fee 69%
JetBlue
$131 $355 No cancel fee 62%
Alaska Airlines
$155 $439 No cancel fee 75%
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