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St. Louis

$54+ Cheap flights from North America to St. Louis (STL)

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 7/13. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — STL
Jun 20 — Jun 271
Fri 6/20
Fri 6/27
1 adult, Economy
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Cheap flight deals from North America to St. Louis

Keep the following information in mind while searching for North America to St. Louis flight deals. Data was last updated June 15, 2025.

Round-trip from

$139
(Mytrip)

One-way from

$54
(FlightHub)

Popular in

December

Cheapest in

January

Average price

$318

Good round-trip deal

$105 or less

Good one-way deal

$49 or less
From North America to Lambert-St Louis
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One-way flight from North America to Lambert-St Louis
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Highest demand for flights based on searches. 8% potential increase in price ($29 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($9 potential savings vs. average RT price).
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Average for round-trip flights in June 2025
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Price to beat on a round-trip flight from North America to Lambert-St Louis.
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Price to beat on a one-way flight from North America to Lambert-St Louis.
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Find flight deals from North America to St. Louis

Cheapest flights from North America to St. Louis
Explore the most affordable flight options available from North America to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 15, 2025.

This Mytrip deal was found by Cheapflights users on 6/13. 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.
Thu 9/1810:46 pmBWI - STL
1 stop10h 03mSpirit Airlines
Sun 9/218:44 amSTL - BWI
1 stop20h 55mSpirit Airlines
Deal found 6/13$139
This Cheapflightsfares deal was found by Cheapflights users on 6/14. 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.
Mon 7/146:00 amDEN - STL
Nonstop2h 11mFrontier
Wed 7/167:29 pmSTL - DEN
Nonstop2h 29mFrontier
Deal found 6/14$146
This Southwest deal was found by Cheapflights users on 6/13. 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.
Thu 8/148:50 pmDEN - STL
Nonstop2h 05mSouthwest
Mon 8/185:45 amSTL - DEN
Nonstop2h 15mSouthwest
Deal found 6/13$157
This American Airlines deal was found by Cheapflights users on 6/14. 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.
Wed 9/2411:59 pmDEN - STL
1 stop7h 06mAmerican Airlines
Mon 9/293:57 pmSTL - DEN
1 stop6h 04mAmerican Airlines
Deal found 6/14$177
This Frontier deal was found by Cheapflights users on 6/14. 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.
Sun 6/297:20 amBWI - STL
1 stop7h 20mFrontier
Thu 7/32:36 pmSTL - BWI
1 stop8h 50mFrontier
Deal found 6/14$180
This Southwest deal was found by Cheapflights users on 6/13. 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.
Thu 8/76:20 amBWI - STL
Nonstop2h 10mSouthwest
Mon 8/114:15 pmSTL - BWI
Nonstop2h 00mSouthwest
Deal found 6/13$197
This Delta deal was found by Cheapflights users on 6/13. 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.
Mon 9/1512:59 amDEN - STL
1 stop6h 11mDelta
Tue 9/165:30 pmSTL - DEN
1 stop6h 00mDelta
Deal found 6/13$197
This Delta deal was found by Cheapflights users on 6/13. 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.
Thu 8/75:35 amBWI - STL
1 stop5h 06mDelta
Mon 8/119:17 amSTL - BWI
1 stop5h 17mDelta
Deal found 6/13$207
This FlightHub deal was found by Cheapflights users on 6/14. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/95:45 amBWI - STL
1 stop5h 44mMultiple Airlines
Tue 7/155:40 pmSTL - BWI
1 stop16h 18mMultiple Airlines
Deal found 6/14$210
This Delta deal was found by Cheapflights users on 6/13. 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.
Tue 8/263:26 pmIAD - STL
1 stop7h 36mDelta
Wed 8/273:42 pmSTL - IAD
1 stop6h 39mDelta
Deal found 6/13$217
This Frontier deal was found by Cheapflights users on 6/13. 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.
Sat 7/56:10 amIAD - STL
1 stop5h 05mFrontier
Sat 8/22:52 pmSTL - IAD
1 stop7h 27mFrontier
Deal found 6/13$221
This United Airlines deal was found by Cheapflights users on 6/13. 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 10/95:40 pmDEN - STL
Nonstop2h 06mUnited Airlines
Sun 10/125:28 pmSTL - DEN
1 stop7h 02mUnited Airlines
Deal found 6/13$223

Cheapflights Fare Finder

Customize your flight search to find flights from North America to St. Louis 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 June 15, 2025.
Use the filters below to find and compare flights from North America to St. Louis that are best for you.

Fly from

North America

Fly to

St. Louis

Route

Depart

Return

Price

BaltimoreSt. Louis

BWI - STL

BWISTL

Baltimore/Washington

Thu 9/18

10:46 pm-7:49 am

1 stop10h 03m

Lambert-St Louis

Sun 9/21

8:44 am-6:39 am

1 stop20h 55m

$139

DenverSt. Louis

DEN - STL

DENSTL

Denver Intl

Mon 7/14

6:00 am-9:11 am

Nonstop2h 11m

Lambert-St Louis

Wed 7/16

7:29 pm-8:58 pm

Nonstop2h 29m

$146

DenverSt. Louis

DEN - STL

DENSTL

Denver Intl

Thu 8/14

8:50 pm-11:55 pm

Nonstop2h 05m

Lambert-St Louis

Mon 8/18

5:45 am-7:00 am

Nonstop2h 15m

$157

DenverSt. Louis

DEN - STL

DENSTL

Denver Intl

Wed 9/24

11:59 pm-8:05 am

1 stop7h 06m

Lambert-St Louis

Mon 9/29

3:57 pm-9:01 pm

1 stop6h 04m

$177

BaltimoreSt. Louis

BWI - STL

BWISTL

Baltimore/Washington

Sun 6/29

7:20 am-1:40 pm

1 stop7h 20m

Lambert-St Louis

Thu 7/3

2:36 pm-12:26 am

1 stop8h 50m

$180

DenverSt. Louis

DEN - STL

DENSTL

Denver Intl

Mon 9/15

12:59 am-8:10 am

1 stop6h 11m

Lambert-St Louis

Tue 9/16

5:30 pm-10:30 pm

1 stop6h 00m

$197

BaltimoreSt. Louis

BWI - STL

BWISTL

Baltimore/Washington

Thu 8/7

6:20 am-7:30 am

Nonstop2h 10m

Lambert-St Louis

Mon 8/11

4:15 pm-7:15 pm

Nonstop2h 00m

$197

BaltimoreSt. Louis

BWI - STL

BWISTL

Baltimore/Washington

Thu 8/7

5:35 am-9:41 am

1 stop5h 06m

Lambert-St Louis

Mon 8/11

9:17 am-3:34 pm

1 stop5h 17m

$207

BaltimoreSt. Louis

BWI - STL

BWISTL

Baltimore/Washington

Wed 7/9

5:45 am-10:29 am

1 stop5h 44m

Lambert-St Louis

Tue 7/15

5:40 pm-10:58 am

1 stop16h 18m

$210

Washington, D.C.St. Louis

IAD - STL

IADSTL

Washington, D.C. Dulles Intl

Tue 8/26

3:26 pm-10:02 pm

1 stop7h 36m

Lambert-St Louis

Wed 8/27

3:42 pm-11:21 pm

1 stop6h 39m

$217

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/14

Showing 1-10 of 60 results
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Best time to book a flight from North America to St. Louis

Have a flexible travel schedule? Discover the best time to fly to St. Louis from North America with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from North America to St. Louis

What is the cheapest month to book a flight from North America to St. Louis?

Currently, August is the cheapest month in which you can book a flight from North America to St. Louis (average of $311). Flying from North America to St. Louis in March is currently the most expensive (average of $356). 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 NA to STL?

Find hourly flight availability from North America to St. Louis. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated June 15, 2025.

When flying from North America to St. Louis, 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 North America to St. Louis

Explore weekly flight availability from North America to St. Louis. 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 June 15, 2025.

The most flights from 0NA to STL are scheduled on a Monday (11 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (10 on average).

Rainfall in St. Louis by month

Plan your trip to St. Louis by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in St. Louis ranges from 2.2 - 4.7 inches per month. May is typically the wettest month, when rainfall can reach 4.7 in. February is typically the driest time to visit St. Louis when rainfall is around 2.2 in.

Temperature in St. Louis by month

Plan your trip to St. Louis by taking into account the average temperature totals by month.

If weather is an important factor for your trip to St. Louis, 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 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 32.0 F).

Reviews of airlines servicing St. Louis

Get insights into the airlines that provide service to St. Louis. 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 St. Louis. Reviews last updated June 15, 2025.
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Entertainment

7.1

Boarding

8.1

Food

7.1

Overall

8.0

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Entertainment

7.1

Boarding

8.1

Food

7.1

Overall

8.0

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Southwest
8.0
Very good
4,285 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Entertainment

7.1

Boarding

8.1

Food

7.1

Overall

8.0

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Delta
8.0
Very good
7,963 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Entertainment

7.1

Boarding

8.1

Food

7.1

Overall

8.0

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Hawaiian Airlines
7.8
Good
2,499 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Entertainment

7.1

Boarding

8.1

Food

7.1

Overall

8.0

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
United Airlines
7.4
Good
8,798 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Entertainment

7.1

Boarding

8.1

Food

7.1

Overall

8.0

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Related info for your journey

Find useful and relevant information for your journey from North America to St. Louis. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to St. Louis from North America?

    Most people fly into Lambert-St Louis (STL) if they book a flight to St. Louis from North America. Lambert-St Louis is conveniently located just 12.7 mi from St. Louis’s city center.

  • How popular is this North America to St. Louis flight route?

    This flight path from North America to Lambert-St Louis was viewed by 18 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

  • What are the cheapest airlines to fly from North America to St. Louis one-way?

    The cheapest airline one-way is Spirit Airlines, with whom users have recently found tickets for as low as $54. However, be on the lookout for offers from Frontier and United Airlines, as they are both options that can get you from North America to St. Louis for a low price.

  • What are the most popular routes from North America to St. Louis?

    The most popular route from North America to St. Louis is Newark - Lambert-St Louis. You may also consider New York LaGuardia - Lambert-St Louis or New York John F Kennedy Intl - Lambert-St Louis.

  • What are the most reliable airlines from North America to St. Louis?

    Before booking your flight to St. Louis from North America, check out the most reliable airlines to get you to your destination on time: American Airlines (87%), Japan Airlines (87%), Fiji Airways( 87%).

  • What are the cheapest flights from North America to St. Louis?

    The cheapest flight price from North America to St. Louis is $172. On average you can expect to pay $769. The most popular route, (Newark - Lambert-St Louis), can usually be booked for $138.

  • Can I find deals for flights from North America to St. Louis that include hotel bookings?

    Yes. In addition to deals on North America to St. Louis flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from North America to St. Louis?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from North America to St. Louis.

  • Can I find deals for business class flights from North America to St. Louis?

    Yes. Cheapflights offers flight deals from North America to St. Louis by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from North America to St. Louis?

    Currently, August is the cheapest month in which you can book a flight from North America to St. Louis (average of $311). Flying from North America to St. Louis in March is currently the most expensive (average of $356). 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.

See more FAQs

Traveling to a place near North America?

Book flights to North America if you plan to visit one of these locations
O'Fallon
Maryland Heights
Fairview Heights
Collinsville
Eureka
St. Peters
Glencoe
Festus
Alton
Farmington

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Alternative routes for North America to St. Louis

See prices for flight routes from nearby airports that may be better suited for you.
Newark to St. Louis flights
LaGuardia to St. Louis flights
Newark to Kansas City flights
John F Kennedy Intl to Kansas City flights
Dulles Intl to Kansas City flights
LaGuardia to Kansas City flights
John F Kennedy Intl to St. Louis flights
Dulles Intl to St. Louis flights
O'Hare Intl to Kansas City flights
Los Angeles to Kansas City flights
Seattle to St. Louis flights
Denver to St. Louis flights
Boston to Kansas City flights
Seattle to Kansas City flights
Los Angeles to St. Louis flights
Boston to St. Louis flights
San Francisco to St. Louis flights
Baltimore to St. Louis flights
Atlanta to St. Louis flights
O'Hare Intl to St. Louis flights
Dallas/Fort Worth to St. Louis flights
Baltimore to Kansas City flights
Atlanta to Kansas City flights
Hobby to St. Louis flights
Minneapolis to St. Louis flights
Denver to Kansas City flights
Reagan-National to St. Louis flights
San Francisco to Kansas City flights
Salt Lake City to Kansas City flights
Dallas/Fort Worth to Kansas City flights
Hobby to Kansas City flights
Philadelphia to Kansas City flights
Reagan-National to Kansas City flights
Minneapolis to Kansas City flights
Philadelphia to St. Louis flights
George Bush Intcntl to St. Louis flights
George Bush Intcntl to Kansas City flights
Sky Harbor Intl to Kansas City flights
Denver to Springfield flights
Salt Lake City to St. Louis flights
Detroit to Kansas City flights
Orlando to St. Louis flights
Ontario to St. Louis flights
Portland to Kansas City flights
Sky Harbor Intl to St. Louis flights
Tampa to Kansas City flights
Ontario to Kansas City flights
San Diego to St. Louis flights
Orlando to Kansas City flights
O'Hare Intl to Springfield flights

Top 9 airlines flying from North America to St. Louis

Discover the top 9 airlines that operate flights from North America to St. Louis. 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 June 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$22Average$211FlexibilityNo cancel feeOn-time65%
FrontierCheapest$45Average$197FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$133Average$382FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$150Average$421FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$177Average$403FlexibilityNo cancel feeOn-time63%
DeltaCheapest$186Average$339FlexibilityNo cancel feeOn-timeN/A
Southern / MokuleleCheapest$186Average$213FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$236Average$555FlexibilityNo cancel feeOn-time75%
Hawaiian AirlinesCheapest$237Average$388FlexibilityNo cancel feeOn-time85%

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