Expect security screening at STL to take 5-10 minutes during off-peak times. Check real-time wait times online before heading to the airport.

Most accurate provider | eDreams 3 stars  | 
|---|---|
Most trusted provider | eDreams 3 stars  | 
Round-trip from | $139 (Southwest)  | 
One-way from | $70 (Southwest)  | 
Popular in | April | 
Cheapest in | August | 
Average price | $276 | 
Good round-trip deal | $269 or less | 
Good one-way deal | $129 or less | 
Fly from
Fly to
Route
Depart
Return
Price
St. LouisDallas
STL - DAL
STLDAL
Lambert-St Louis
Fri 11/28
5:15 am-7:00 am
Nonstop1h 45m
Dallas Love Field
Fri 12/5
11:20 am-1:05 pm
Nonstop1h 45m
St. LouisDallas
STL - DAL
STLDAL
Lambert-St Louis
Fri 12/5
2:40 pm-6:45 pm
1 stop4h 05m
Dallas Love Field
Mon 12/8
6:15 pm-8:00 pm
Nonstop1h 45m
St. LouisDallas
STL - DAL
STLDAL
Lambert-St Louis
Tue 12/2
10:35 am-1:35 pm
1 stop3h 00m
Dallas Love Field
Wed 12/3
12:40 pm-5:25 pm
1 stop4h 45m
St. LouisDallas
STL - DAL
STLDAL
Lambert-St Louis
Fri 12/5
5:12 pm-11:56 pm
1 stop6h 44m
Dallas Love Field
Mon 12/8
3:59 pm-9:02 pm
1 stop5h 03m
St. LouisDallas
STL - DAL
STLDAL
Lambert-St Louis
Wed 12/3
9:10 am-1:40 pm
1 stop4h 30m
Dallas Love Field
Sat 12/6
2:55 pm-9:00 pm
1 stop6h 05m
St. LouisDallas
STL - DAL
STLDAL
Lambert-St Louis
Sat 12/20
9:10 pm-10:55 pm
Nonstop1h 45m
Dallas Love Field
Thu 12/25
6:05 pm-7:45 pm
Nonstop1h 40m
St. LouisDallas
STL - DAL
STLDAL
Lambert-St Louis
Wed 12/17
10:15 am-12:00 pm
Nonstop1h 45m
Dallas Love Field
Mon 12/22
6:30 am-8:10 am
Nonstop1h 40m
St. LouisDallas
STL - DAL
STLDAL
Lambert-St Louis
Thu 11/27
6:35 am-10:35 am
1 stop4h 00m
Dallas Love Field
Mon 12/1
4:25 pm-9:45 pm
1 stop5h 20m
St. LouisDallas
STL - DAL
STLDAL
Lambert-St Louis
Thu 1/1
8:15 pm-10:05 pm
Nonstop1h 50m
St. LouisDallas
STL - DAL
STLDAL
Lambert-St Louis
Tue 1/20
2:20 pm-4:10 pm
Nonstop1h 50m
| Provider | Price Accuracy | Trust Score* | 
|---|---|---|
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*1 star | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy1 star | Trust Score*3 stars | 
The best time to book flights from St. Louis to Dallas Love Field Airport is 49 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.
Currently, December is the cheapest month in which you can book a flight from St. Louis to Dallas Love Field Airport (average of $85). Flying from St. Louis to Dallas Love Field Airport in June is currently the most expensive (average of $274). 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.
It’s typically best to fly out from St. Louis to Dallas Love Field Airport in the evening. Doing so could potentially save you 20% on the flight price compared to flying at noon, which is usually more expensive.
Travelers seeking maximum savings on their St. Louis to Dallas Love Field Airport flight should consider departing on Monday evenings when fares are most often at their lowest. Sunday at noon flights should be avoided if possible as fares are typically the most expensive at this time.
Comfort
Food
Overall
Crew
Entertainment
Boarding
Reviews
Mike,Aug 2025
OKC - AUS
Comfort
Food
Overall
Crew
Entertainment
Boarding
Reviews
Mike,Aug 2025
OKC - AUS
| Airline | Cheapest | Average | Flexibility | On-time | 
|---|---|---|---|---|
| Cheapest$178 | Average$309 | FlexibilityNo cancel fee | On-time63% |