
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $143 (Kiwi.com) |
One-way from | $74 (Kiwi.com) |
Popular in | March |
Cheapest in | October |
Average price | $362 |
Good round-trip deal | $306 or less |
Good one-way deal | $176 or less |
Fly from
Fly to
Route
Depart
Return
Washington, D.C.St. Louis
IAD - STL
IADSTL
Washington, D.C. Dulles Intl
Thu 8/6
6:00 am-9:54 am
1 stop4h 54m
Lambert-St Louis
Mon 8/10
12:52 pm-8:55 pm
1 stop7h 03m
Washington, D.C.St. Louis
DCA - STL
DCASTL
Washington, D.C. Reagan-National
Sat 7/18
9:45 am-3:43 pm
1 stop6h 58m
Lambert-St Louis
Mon 7/20
6:09 pm-10:59 pm
1 stop3h 50m
Washington, D.C.St. Louis
DCA - STL
DCASTL
Washington, D.C. Reagan-National
Sat 7/18
4:10 pm-5:30 pm
Nonstop2h 20m
Lambert-St Louis
Mon 7/27
3:30 pm-6:30 pm
Nonstop2h 00m
Washington, D.C.St. Louis
DCA - STL
DCASTL
Washington, D.C. Reagan-National
Sat 8/15
6:05 am-1:15 pm
1 stop8h 10m
Lambert-St Louis
Mon 8/17
10:10 am-6:00 pm
2 stops6h 50m
BaltimoreSt. Louis
BWI - STL
BWISTL
Baltimore/Washington
Wed 7/15
3:25 pm-6:25 pm
1 stop4h 00m
Lambert-St Louis
Wed 7/22
7:40 pm-10:45 pm
Nonstop2h 05m
Washington, D.C.St. Louis
DCA - STL
DCASTL
Washington, D.C. Reagan-National
Thu 7/23
11:00 am-3:43 pm
1 stop5h 43m
Lambert-St Louis
Mon 7/27
1:22 pm-8:47 pm
1 stop6h 25m
Washington, D.C.St. Louis
DCA - STL
DCASTL
Washington, D.C. Reagan-National
Wed 8/12
8:00 am-9:10 am
Nonstop2h 10m
Lambert-St Louis
Fri 8/14
8:10 am-11:10 am
Nonstop2h 00m
Washington, D.C.St. Louis
DCA - STL
DCASTL
Washington, D.C. Reagan-National
Tue 7/28
12:00 pm-1:15 pm
Nonstop2h 15m
Lambert-St Louis
Fri 7/31
1:20 pm-4:20 pm
Nonstop2h 00m
BaltimoreSt. Louis
BWI - STL
BWISTL
Baltimore/Washington
Tue 9/22
8:55 am-10:05 am
Nonstop2h 10m
Lambert-St Louis
Tue 9/22
4:30 pm-7:30 pm
Nonstop2h 00m
BaltimoreSt. Louis
BWI - STL
BWISTL
Baltimore/Washington
Wed 7/22
10:15 am-11:30 am
Nonstop2h 15m
Lambert-St Louis
Wed 7/22
6:20 pm-9:30 pm
Nonstop2h 10m
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
Currently, October is the cheapest month in which you can book a flight from Washington, D.C. to St. Louis (average of $72). Flying from Washington, D.C. to St. Louis in March is currently the most expensive (average of $235). 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 optimal to fly from Washington, D.C. to St. Louis at noon. By choosing this option you can save up to 21% on the cost of your flight, compared to a flight in the afternoon.
The most flights from WAS to STL are scheduled on a Tuesday (16 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (8 on average).
To ensure you get the cheapest price possible for a flight from Washington, D.C. to St. Louis, you should look to book at least 87 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.
Travelers seeking maximum savings on their Washington, D.C. to St. Louis flight should consider departing on Sunday at noon when fares are most often at their lowest. Monday evenings flights should be avoided if possible as fares are typically the most expensive at this time.
Comfort
Crew
Overall
Food
Entertainment
Boarding
Reviews
Anonymous,Feb 2025
MCO - STL
Comfort
Crew
Overall
Food
Entertainment
Boarding
Reviews
Anonymous,Feb 2025
MCO - STL
Comfort
Crew
Overall
Food
Entertainment
Boarding
Reviews
Anonymous,Feb 2025
MCO - STL
Comfort
Crew
Overall
Food
Entertainment
Boarding
Reviews
Anonymous,Feb 2025
MCO - STL
Comfort
Crew
Overall
Food
Entertainment
Boarding
Reviews
Anonymous,Feb 2025
MCO - STL
Comfort
Crew
Overall
Food
Entertainment
Boarding
Reviews
Anonymous,Feb 2025
MCO - STL
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$78 | Average$198 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$131 | Average$301 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$178 | Average$341 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$201 | Average$407 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$273 | Average$548 | FlexibilityNo cancel fee | On-time69% |