St. Louis

$41+ Cheap flights from Irving, TX 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 9/8. Fares are subject to change and may not be available on all flights or dates of travel.
DFW — STL
Jul 11 — Jul 181
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Cheapflights Tip: The best prices from Irving to Lambert-St Louis are usually found in August or July, booked 15 days in advance, depart on a Thursday or Tuesday and return on a Thursday

Cheap flight deals from Irving to St. Louis

Cheapest flights from Irving to St. Louis
Explore the most affordable flight options available from Irving to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 11, 2026.

This Kiwi.com deal was found by Cheapflights users on 6/10. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/2712:49 pm
DFW
-
STL
Nonstop1h 59m
Frontier
Wed 9/23:33 pm
STL
-
DFW
Nonstop1h 55m
Frontier
Deal found 6/10$126
This Frontier deal was found by Cheapflights users on 6/10. 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.
Thu 9/312:49 pm
DFW
-
STL
Nonstop1h 59m
Frontier
Mon 9/286:41 pm
STL
-
DFW
Nonstop2h 05m
Frontier
Deal found 6/10$127
This Kiwi.com deal was found by Cheapflights users on 6/10. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/112:49 pm
DFW
-
STL
Nonstop1h 59m
Frontier
Sat 10/310:35 am
STL
-
DFW
1 stop9h 15m
Frontier
Deal found 6/10$128
This Kiwi.com deal was found by Cheapflights users on 6/10. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/2412:49 pm
DFW
-
STL
Nonstop1h 59m
Frontier
Sat 8/293:33 pm
STL
-
DFW
Nonstop1h 55m
Frontier
Deal found 6/10$129
This Kiwi.com deal was found by Cheapflights users on 6/10. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/254:16 pm
DFW
-
STL
1 stop16h 36m
Frontier
Wed 9/23:33 pm
STL
-
DFW
Nonstop1h 55m
Frontier
Deal found 6/10$130
This Mytrip deal was found by Cheapflights users on 6/10. 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.
Sat 7/181:00 pm
DFW
-
STL
Nonstop1h 56m
Frontier
Tue 7/213:41 pm
STL
-
DFW
Nonstop2h 02m
Frontier
Deal found 6/10$131
This Frontier deal was found by Cheapflights users on 6/10. 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 8/2912:49 pm
DFW
-
STL
Nonstop1h 59m
Frontier
Mon 8/313:33 pm
STL
-
DFW
Nonstop1h 55m
Frontier
Deal found 6/10$133
This Frontier deal was found by Cheapflights users on 6/10. 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.
Fri 8/2812:49 pm
DFW
-
STL
Nonstop1h 59m
Frontier
Thu 10/16:41 pm
STL
-
DFW
Nonstop2h 05m
Frontier
Deal found 6/10$135
This Frontier deal was found by Cheapflights users on 6/8. 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.
Thu 9/312:49 pm
DFW
-
STL
Nonstop1h 59m
Frontier
Thu 9/106:41 pm
STL
-
DFW
Nonstop2h 05m
Frontier
Deal found 6/8$136
This Kiwi.com deal was found by Cheapflights users on 6/7. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/11:00 pm
DFW
-
STL
Nonstop1h 56m
Frontier
Tue 8/46:34 pm
STL
-
DFW
1 stop17h 56m
Frontier
Deal found 6/7$138
This Kiwi.com deal was found by Cheapflights users on 6/10. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/112:49 pm
DFW
-
STL
Nonstop1h 59m
Frontier
Wed 9/3010:35 am
STL
-
DFW
1 stop20h 59m
Frontier
Deal found 6/10$140
This Frontier deal was found by Cheapflights users on 6/8. 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.
Mon 9/712:49 pm
DFW
-
STL
Nonstop1h 59m
Frontier
Tue 9/83:33 pm
STL
-
DFW
Nonstop1h 55m
Frontier
Deal found 6/8$142

Find flight deals from Irving to St. Louis

Keep the following information in mind while searching for Irving to St. Louis flight deals. Data was last updated June 11, 2026.

Round-trip from

$126
(Kiwi.com)

One-way from

$41
(Frontier)

Popular in

February

Cheapest in

August

Average price

$247
From Irving to Lambert-St Louis
One-way flight from Irving to Lambert-St Louis
Highest demand for flights based on searches. 27% potential increase in price ($116 potential increase over avg. RT price).
Cheapest flight prices on average. 11% potential price decrease ($32 potential savings vs. average RT price).
Average for round-trip flights in June 2026

Cheapflights Fare Finder

 
Customize your flight search to find flights from Irving 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 11, 2026.
Use the filters below to find and compare flights from Irving to St. Louis that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

DallasSt. Louis

DFW - STL

DFWSTL

Dallas/Fort Worth

Sat 8/29

7:00 am-2:47 pm

1 stop7h 47m

Lambert-St Louis

Mon 9/28

4:59 pm-9:46 pm

1 stop4h 47m

$227

DallasSt. Louis

DFW - STL

DFWSTL

Dallas/Fort Worth

Thu 8/6

6:45 am-11:46 am

1 stop5h 01m

Lambert-St Louis

Mon 8/10

3:39 pm-9:56 pm

1 stop6h 17m

$311

DallasSt. Louis

DFW - STL

DFWSTL

Dallas/Fort Worth

Fri 7/10

5:24 pm-10:45 pm

1 stop5h 21m

Lambert-St Louis

Sun 7/12

6:00 am-11:29 am

1 stop5h 29m

$351

DallasSt. Louis

DFW - STL

DFWSTL

Dallas/Fort Worth

Sun 8/30

6:45 am-11:46 am

1 stop5h 01m

Lambert-St Louis

Fri 10/2

12:00 pm-5:20 pm

1 stop5h 20m

$359
Quickest round-trip

DallasSt. Louis

DFW - STL

DFWSTL

Dallas/Fort Worth

Fri 7/3

7:00 am-12:57 pm

1 stop5h 57m

Lambert-St Louis

Fri 7/3

5:13 pm-7:15 pm

Nonstop2h 02m

$369

DallasSt. Louis

DFW - STL

DFWSTL

Dallas/Fort Worth

Fri 7/3

5:05 pm-11:56 pm

1 stop6h 51m

Lambert-St Louis

Mon 7/6

5:36 pm-10:22 pm

1 stop4h 46m

$379

DallasSt. Louis

DFW - STL

DFWSTL

Dallas/Fort Worth

Thu 9/17

6:45 am-11:57 am

1 stop5h 12m

Lambert-St Louis

Sat 9/19

9:23 am-8:26 pm

2 stops11h 03m

$396

DallasSt. Louis

DFW - STL

DFWSTL

Dallas/Fort Worth

Tue 8/4

5:10 am-3:46 pm

2 stops10h 36m

Lambert-St Louis

Thu 8/6

6:00 am-4:16 pm

2 stops10h 16m

$397

DallasSt. Louis

DFW - STL

DFWSTL

Dallas/Fort Worth

Sat 8/1

5:10 am-3:46 pm

2 stops10h 36m

Lambert-St Louis

Tue 8/4

1:13 pm-11:59 pm

2 stops10h 46m

$401

DallasSt. Louis

DFW - STL

DFWSTL

Dallas/Fort Worth

Fri 7/3

5:24 pm-10:45 pm

1 stop5h 21m

Lambert-St Louis

Mon 7/6

5:10 am-10:39 am

1 stop5h 29m

$425

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/11

Showing 1-10 of 21 resultsSorted by cheapest first
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Best time to book a flight from Irving to St. Louis

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

What is the cheapest time of day to fly from 1RV to STL?

Find hourly flight availability from Irving 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 11, 2026.

It’s typically best to fly out from Irving to St. Louis in the morning. Doing so could potentially save you 20% on the flight price compared to flying at noon, which is usually more expensive.

Weekly flight availability from Irving to St. Louis

Explore weekly flight availability from Irving 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 11, 2026.

The most flights from 1RV to STL are scheduled on a Wednesday (35 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (15 on average).

How much does it cost to fly round-trip from Irving to St. Louis?

What is the cheapest day to fly from Irving to St. Louis?

Use this chart to determine the cheapest time to fly round-trip from Irving to St. Louis. Price data was last updated on June 8, 2026.

Travelers seeking maximum savings on their Irving to St. Louis flight should consider departing on Tuesday afternoons when fares are most often at their lowest. Monday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

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 11, 2026.
Read through reviews of airlines operating flights from Irving to St. Louis, such as Southwest,American Airlines, andJetBlue. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Boarding

8.1

Food

7.0

Crew

8.6

Overall

7.9

Comfort

8.0

Entertainment

7.5

Reviews

1 / 20
6.0
Good

Scott,Feb 2026

HOU - FLL

Delayed by 45 minutes leaving Houston, making a 3.5 hour layover that much longer.

Boarding

8.1

Food

7.0

Crew

8.6

Overall

7.9

Comfort

8.0

Entertainment

7.5

Reviews

1 / 20
6.0
Good

Scott,Feb 2026

HOU - FLL

Delayed by 45 minutes leaving Houston, making a 3.5 hour layover that much longer.

Boarding

8.1

Food

7.0

Crew

8.6

Overall

7.9

Comfort

8.0

Entertainment

7.5

Reviews

1 / 20
6.0
Good

Scott,Feb 2026

HOU - FLL

Delayed by 45 minutes leaving Houston, making a 3.5 hour layover that much longer.

Boarding

8.1

Food

7.0

Crew

8.6

Overall

7.9

Comfort

8.0

Entertainment

7.5

Reviews

1 / 20
6.0
Good

Scott,Feb 2026

HOU - FLL

Delayed by 45 minutes leaving Houston, making a 3.5 hour layover that much longer.

Boarding

8.1

Food

7.0

Crew

8.6

Overall

7.9

Comfort

8.0

Entertainment

7.5

Reviews

1 / 20
6.0
Good

Scott,Feb 2026

HOU - FLL

Delayed by 45 minutes leaving Houston, making a 3.5 hour layover that much longer.

Related info for your journey

Find useful and relevant information for your journey from Irving 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 Irving?

    For a flight from Irving to St. Louis, you will be flying into Lambert-St Louis. Lambert-St Louis (STL) is just 12.7 mi from the center of the city. Lambert-St Louis is the only St. Louis airport and it handles 29 inbound flights from Irving per day. 4 airlines have flights to Lambert-St Louis from Irving on a regular basis.

  • How long is the flight from Irving to St. Louis?

    Departing from Irving to St. Louis will take you 5h 21m. The distance from Irving to St. Louis is about 550 mi. Both multi-stop and nonstop flights can be found to your destination and back.

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

    The cheapest airline one-way is Frontier, with whom users have recently found tickets for as low as $45. However, be on the lookout for offers from Southwest and American Airlines, as they are both options that can get you from Irving to St. Louis for a low price.

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

    Before booking your flight to St. Louis from Irving, check out the most reliable airlines to get you to your destination on time: Frontier (100%), Volaris (100%), Envoy Air( 97%).

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

    While on average a flight from Irving to St. Louis is generally $826, our data shows the cheapest flight currently is $76. When looking at the most popular route, (Dallas/Fort Worth - Lambert-St Louis), you can expect to pay $137 for that flight.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Irving 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.

See more FAQs

Traveling to a place near St. Louis?

Book flights to St. Louis if you plan to visit one of these locations
Edwardsville
O'Fallon
Fenton
Swansea
Fairview Heights
Eureka
Maryland Heights
Collinsville
Wentzville
Glencoe
Chesterfield
Alton
Farmington

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Irving to St. Louis

See prices for flight routes from nearby airports that may be better suited for you.

Top 4 airlines flying from Irving to St. Louis

Discover the top 4 airlines that operate flights from Irving 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 11, 2026.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$81Average$165FlexibilityNo cancel feeOn-time62%
SouthwestCheapest$169Average$334FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$176Average$316FlexibilityNo cancel feeOn-time71%
JetBlueCheapest$243Average$265FlexibilityNo cancel feeOn-time62%

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