HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
St. Louis

$28+ Cheap flights from St. Louis

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 5/2. Fares are subject to change and may not be available on all flights or dates of travel.
STL — SEA
May 14 — May 211
Thu 5/14
Thu 5/21
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find flights from St. Louis within your budget

 
Find flights departing from St. Louis that match your specified budget. Filter results by price range, allowing you to narrow down options and find flights that fit within your financial constraints. Please note that the search results are based on data from user searches, with fares last updated on April 14, 2026. In the last 7 days, Cheapflights users made a total of 2,558,603 searches

Fly to

Route

Depart

Return

Price

Cheapest round-trip

St. LouisDenver

STL - DEN

STLDEN

Lambert-St Louis

Tue 5/5

3:55 pm-5:20 pm

Nonstop2h 25m

Denver Intl

Tue 5/12

8:05 pm-11:10 pm

Nonstop2h 05m

$201

St. LouisDenver

STL - DEN

STLDEN

Lambert-St Louis

Thu 5/7

5:15 pm-6:35 pm

Nonstop2h 20m

Denver Intl

Thu 5/14

6:20 am-9:25 am

Nonstop2h 05m

$221

St. LouisDenver

STL - DEN

STLDEN

Lambert-St Louis

Wed 5/20

5:40 pm-7:00 pm

Nonstop2h 20m

Denver Intl

Wed 5/27

8:05 pm-11:10 pm

Nonstop2h 05m

$241

St. LouisOrlando

STL - MCO

STLMCO

Lambert-St Louis

Tue 5/12

3:55 pm-7:20 pm

Nonstop2h 25m

Orlando

Sat 5/16

8:40 pm-10:20 pm

Nonstop2h 40m

$257

St. LouisSeattle

STL - SEA

STLSEA

Lambert-St Louis

Wed 5/13

5:30 am-6:00 pm

2 stops14h 30m

Seattle/Tacoma Intl

Sun 5/17

8:50 pm-10:05 am

1 stop11h 15m

$265

St. LouisNew York

STL - LGA

STLLGA

Lambert-St Louis

Wed 5/27

5:55 am-9:15 am

Nonstop2h 20m

New York LaGuardia

Tue 6/2

3:05 pm-5:00 pm

Nonstop2h 55m

$273

St. LouisNew York

STL - JFK

STLJFK

Lambert-St Louis

Wed 5/27

1:59 pm-9:50 pm

1 stop6h 51m

New York John F Kennedy Intl

Wed 6/3

2:55 pm-4:48 pm

Nonstop2h 53m

$283

St. LouisDallas

STL - DFW

STLDFW

Lambert-St Louis

Sat 6/6

6:21 am-12:34 pm

1 stop6h 13m

Dallas/Fort Worth

Wed 6/10

6:37 pm-11:56 pm

1 stop5h 19m

$285

St. LouisDenver

STL - DEN

STLDEN

Lambert-St Louis

Sat 5/9

4:15 pm-5:49 pm

Nonstop2h 34m

Denver Intl

Tue 5/12

5:34 pm-8:43 pm

Nonstop2h 09m

$291

St. LouisDenver

STL - DEN

STLDEN

Lambert-St Louis

Tue 5/5

8:46 am-10:20 am

Nonstop2h 34m

Denver Intl

Sat 5/9

5:34 pm-8:43 pm

Nonstop2h 09m

$291

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/9

Showing 1-10 of 60 resultsSorted by cheapest first
1
2
3
...
6

Compare providers for flights from St. Louis

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from St. Louis in April
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
CheapOairPrice Accuracy3 starsTrust Score*3 stars
CheapTicketsDealPrice Accuracy3 starsTrust Score*3 stars
CheapfaremartPrice Accuracy-Trust Score*1 star

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: Among all the travel providers offering deals on flights from St. Louis, FlightHub has been found to have the most accurate pricing. Users can find the same prices on deals on Cheapflights as FlightHub about >95% of the time. This is based on searches for flights from St. Louis made on Cheapflights over the past month and is updated monthly.
  • Most trusted provider: In terms of trustworthiness, Cheapflights users rate FlightHub the highest out of those offering flight deals from St. Louis. FlightHub has a user feedback rating of 3 out of 3 stars (3 being the best) and has received the most positive sentiment from Cheapflights users searching for flights from St. Louis. This info is gathered from Cheapflights searches over the past month.

Best time to book a flight from St. Louis

Have a flexible travel schedule? Discover the best time to fly from St. Louis 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.

Travel insights for flights from St. Louis

Get recent, data-driven insights about flights from St. Louis including ideal travel times, pricing trends, and more.

When is the best time to book a flight from St. Louis?

Use this chart to determine the optimal time to book a round-trip flight from St. Louis to Seattle. Price data was last updated on April 10, 2026.

To ensure you get the cheapest price possible for a flight from St. Louis, you should look to book at least 66 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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

Currently, March is the cheapest month in which you can book a flight from St. Louis (average of $107). Flying from St. Louis in August will prove the most costly (average of $231). There are multiple factors that influence the price of a flight so comparing airlines, departure airports and times can help keep costs down.

When is the cheapest time to fly from St. Louis?

Use this chart to determine the cheapest time to fly round-trip from St. Louis to Seattle. Price data was last updated on April 11, 2026.

Those who are seeking the cheapest fare on flights departing from St. Louis would be wise to consider leaving during Saturday evenings when prices are typically at their lowest. When considering other options, price-conscious travelers should avoid Tuesday at noon when fares are usually the most expensive.

Which airlines fly from St. Louis?

For flights departing from St. Louis check dates and pricing for the following: Alaska Airlines, American Airlines, Hawaiian Airlines, Southwest, Delta. These airlines depart to the following popular destinations: Seattle.

American Airlines
American Airlines
From $97
Southwest
Southwest
From $77
United Airlines
United Airlines
From $114
Frontier
Frontier
From $56

What are popular destinations to fly to from St. Louis?

Some of the most frequent flights departing from St. Louis everyday are: Chicago (996 flights per day), Atlanta (208 flights per day), and Dallas (201 flights per day).

Chicago
Chicago
From $142
Denver Intl
Denver Intl
From $108
Atlanta Hartsfield-Jackson
Atlanta Hartsfield-Jackson
From $84
Dallas/Fort Worth
Dallas/Fort Worth
From $115

What is the cheapest place to fly to from St. Louis?

The cheapest city to fly to from St. Louis is Orlando, with prices starting at $79. Explore other affordable destinations below.

Orlando
Orlando
From $79
Atlanta Hartsfield-Jackson
Atlanta Hartsfield-Jackson
From $84
Cleveland Hopkins Intl
Cleveland Hopkins Intl
From $85
Austin Bergstrom
Austin Bergstrom
From $104

Airline reviews for flights from St. Louis

Read reviews and ratings of airlines operating flights from St. Louis. Gain insights into the quality of service, in-flight amenities, customer experiences, and overall satisfaction to choose the best airline for your St. Louis travel. Please note that the reviews are sourced from user searches and were last updated on April 14, 2026. In the last 7 days, Cheapflights users made a total of 2,558,603 searches.
Read reviews from past customers who have flown Southwest,Alaska Airlines, andDelta from St. Louis. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,328 reviews

Entertainment

7.5

Comfort

8.0

Crew

8.6

Food

7.0

Overall

8.0

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.
Southwest
8.0
Very good
4,328 reviews
Southwest
8.0
Very good
4,328 reviews

Entertainment

7.5

Comfort

8.0

Crew

8.6

Food

7.0

Overall

8.0

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.
Alaska Airlines
7.9
Good
12,233 reviews
Southwest
8.0
Very good
4,328 reviews

Entertainment

7.5

Comfort

8.0

Crew

8.6

Food

7.0

Overall

8.0

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.
Delta
7.9
Good
8,405 reviews
Southwest
8.0
Very good
4,328 reviews

Entertainment

7.5

Comfort

8.0

Crew

8.6

Food

7.0

Overall

8.0

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.
Hawaiian Airlines
7.8
Good
2,838 reviews
Southwest
8.0
Very good
4,328 reviews

Entertainment

7.5

Comfort

8.0

Crew

8.6

Food

7.0

Overall

8.0

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.
American Airlines
7.1
Good
11,573 reviews
Southwest
8.0
Very good
4,328 reviews

Entertainment

7.5

Comfort

8.0

Crew

8.6

Food

7.0

Overall

8.0

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Popular international destinations from St. Louis

The most popular international flight routes departing from St. Louis we’ve come across at this time.
Flights from St. Louis to Cancún
Flights from St. Louis to Punta Cana
Flights from St. Louis to Montego Bay

Related info for your journey

Access useful and relevant information related to your journey from St. Louis. This can include details such as airport transportation, visa requirements, travel insurance, luggage regulations, and any other information that can ensure a smooth and hassle-free travel experience. Please note that the information is based on general guidance and may need to be verified with official sources. Data last updated April 14, 2026.

  • What are the most popular destinations to fly to from St. Louis?

    This month, the top selected destinations from St. Louis are Denver, Atlanta, Cancún. Throughout the year, Denver, Cancún, Atlanta are some of the top choices made by users flying from St. Louis.

  • What is the cheapest flight from St. Louis to anywhere?

    Users have flown out of St. Louis for as low as $79 to Orlando Airport (prices may vary depending on the airline and departure time). On average, users have booked flights for $565 to fly from St. Louis.

  • What are the cheapest airlines flying from St. Louis to anywhere?

    Over the past few days, we've found that Spirit Airlines, Frontier, and Sun Country Air have the cheapest prices from St. Louis. Spirit Airlines flights from St. Louis to Boston Logan Intl ($30), Frontier flights from St. Louis to Atlanta Hartsfield-Jackson ($56), and Sun Country Air flights from St. Louis to Minneapolis St Paul ($58).

  • What is the cheapest premium economy flight from St. Louis?

    Options for some of the cheapest premium economy flights from St. Louis we have found on Cheapflights are as follows:
    Fly from Lambert-St Louis to Orlando Airport starting at $417
    Fly from Lambert-St Louis to Las Vegas starting at $505
    Fly from Lambert-St Louis to Cancún starting at $590
    Fly from Lambert-St Louis to Denver starting at $627

  • What is the cheapest first class flight from St. Louis?

    If you’re looking for a cheap first-class flight from St. Louis, consider Orlando. Prices start at $220 so you can fly first-class even on a budget.

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

    March is currently the cheapest month to fly from St. Louis. At this moment in time August is the most expensive month. These prices are determined by multiple factors and booking in advance can help keep costs down if your schedule is not as flexible.

  • Where are the cheapest places to fly to from St. Louis?

    Check out the cheapest flights from St. Louis to embark to:
    Fly from St. Louis to Orlando from $80 round trip
    Fly from St. Louis to Chicago from $97 round trip
    Fly from St. Louis to Minneapolis from $97 round trip
    Fly from St. Louis to Nashville from $97 round trip
    Fly from St. Louis to Atlanta from $115 round trip

See more FAQs

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.