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Cheap Flights from Washington to St Louis, MO, United States - WAS to STL

Popular flights from Washington to St Louis

We’ve got the inside scoop on finding the best time to fly for the best price. Not sure when to travel for your next vacation? Find details below on when-to-fly and when-to-buy.

Alaska Airlines
Departure Date Return Date Lowest Price
Jun 4, 2016 Jun 7, 2016 $251
Jun 4, 2016 Jun 11, 2016 $251
Aug 19, 2016 Aug 27, 2016 $251
Aug 25, 2016 Aug 27, 2016 $251
American Airlines
Departure Date Return Date Lowest Price
Jun 1, 2016 Jun 8, 2016 $203
United Airlines
Departure Date Return Date Lowest Price
Jun 1, 2016 Jun 8, 2016 $203
Jun 7, 2016 Jun 11, 2016 $203

How Much Does it Cost to Fly from Washington to St Louis (WAS to STL)?

We have collected flight cost data from across the web for travel from Washington to St Louis, and have found the average flight price for this trip to be $217.

When Can I Buy the Cheapest Flight from Washington to St Louis (WAS to STL)?

Airlines can adjust prices for plane tickets from Washington to St Louis based on the day and time that you decide to book your flight. We have collected data from all airlines, and have discovered that the best days to book flights are Tuesdays, Wednesdays, and Saturdays. Read our article to find more information about the best time to buy airline tickets.

How far in advance should you book flights from Washington to St Louis

The chart below shows up-to-date information regarding how far in advance a flight from Washington to St Louis should be booked.

Non Stop versus 1-Stop
Advanced PurchaseNon StopOne Stop
< 7 days $437 $411
7-14 days $306 $218
14-21 days $251 $211
21-30 days $203 $210
30-60 days $203 $210
60-90 days $299 $293
90+ days $203 $210

Cheapest Day To Fly from Washington to St Louis

The chart below shows up-to-date information regarding the cheapest days to fly from Washington to St Louis.

Monday Tuesday Wednesday Thursday Friday Saturday Sunday
$225 $203 $203 $208 $268 $210 $208

Lowest Fares Chart By Month from Washington to St Louis

The chart below shows the lowest fare by month when flying from Washington to St Louis.

Month Origin Destination Carrier Depart Date Return Date Stops Price
May Washington St Louis American 5/29/16 6/2/16 0 $208
June Washington St Louis American 6/1/16 6/8/16 0 $203
July Washington St Louis American 7/13/16 7/19/16 1 $293
August Washington St Louis American 8/25/16 8/27/16 0 $208
September Washington St Louis American 9/4/16 9/20/16 0 $203
October Washington St Louis United 10/22/16 10/29/16 0 $203
November Washington St Louis American 11/5/16 11/16/16 1 $293
December Washington St Louis American 12/23/16 12/26/16 0 $339

Cheapest Weekend Non-Stop Flights for the Next 30 Days from Washington to St Louis

If you're ready to take a trip in the next 30 days and want to fly on the weekend, you might be wondering which weekend is the cheapest to fly. The chart below shows up-to-date data regarding weekend flight prices from Washington to St Louis.

Next 30 Days

SunMonTueWedThuFriSat
1 2 3 4 5 6 7
$437
8 9 10 11 12 13 14
$437 $413
15 16 17 18 19 20 21
$413 $306
22 23 24 25 26 27 28
$306 $359
29 30 31 1 2 3 4
$359 $251
5 6 7 8 9 10 11
$251

Non-Stop vs Connecting Flights from Washington to St Louis (WAS to STL)

Your Washington to St Louis flight can be significantly cheaper by choosing a multi-stop airline ticket. Although these connecting flights sacrifice some convenience, on average, travelers save 20%-60% when they choose to fly multi-stop versus a direct flight.

The average price for connecting flights from Washington to St Louis is $226.

The average price for non-stop flights from Washington to St Louis is $220.

The chart below shows up to date information regarding non-stop flights from Washington to St Louis.

Nonstop Flight Details from Washington to St Louis
CarrierMonTueWedThuFriSatSunEarliest FlightLatest Flight
American 5 5 5 5 5 3 3 09:59 17:30
United 3 3 2 3 3 3 2 09:30 22:00

Round Trip vs One Way Flights from Washington to St Louis (WAS to STL)

We have found that there is often no price difference between buying a round trip flight versus a one way flight. Increased flexibility is the main benefit when it comes to buying a one way flight from Washington to St Louis. However, booking a round trip flight can be a simpler process. You can compare round trip and one way flights by using our flight comparison.

The average price for one way flights from Washington to St Louis is $116.

The average price for round trip flights from Washington to St Louis is $220.

Washington to St Louis Flight Questions

Below are some common questions that asked about this flight route:

Question: How long is a direct flight from Washington to St Louis?
Answer: The average Washington to St Louis flight time is 2 hours and 18 minutes.
Question: How many miles are there between Washington and St Louis?
Answer: The distance from Washington to St Louis is 694 miles.
Question: How common are direct flights from Washington to St Louis?
Answer: There are 45 direct flights from Washington to St Louis.
Question: What is the most popular airline for non-stop flights from Washington to St Louis?
Answer: American Airlines provides 57% of the non-stop flights between Washington and St Louis.
Question: What are the most popular connecting cities when flying from Washington to St Louis?
Answer: Atlanta, GA

Airlines Flying from Washington to St Louis (WAS to STL)

Below are the different airlines that fly from Washington to St Louis with the average price of their plane tickets. Just remember that different airlines offer different levels of comfort and service, so consider convenience when choosing your airline.

Below is the full flight schedule summary of the next 30 days for flights from Washington to St Louis.

Washington to St Louis
Airline Connections Mon Tue Wed Thu Fri Sat Sun
American - X X X X X X X
American CLT X X X X X X X
Delta CVG X X X X X X X
United - X X X X X X X
United ORD X X X X X X X
Southwest - X X X X X X X
Southwest ATL X X X X X X X

Airports for Your Route

These pages contain information about the major airports in Washington and St Louis, so you can feel comfortable knowing how to get around whether you are about to take off or you just landed.

Cheap Domestic Flights from Washington - WAS

FlightsAirlineLowest Price
Washington to Chicago American, Alaska, Frontier, United $88
Washington to Atlanta American, Alaska, JetBlue, United $166
Washington to Dallas - Ft Worth American, Alaska, United, Virgin America $117
Washington to New York American, JetBlue, United $137

Cheap Domestic Flights to St Louis - STL

FlightsAirlineLowest Price
Baltimore to St Louis American, Alaska, United $293
Philadelphia to St Louis American, Alaska, United $325
Newark to St Louis American, Alaska, United $253
Pittsburgh to St Louis American, Alaska, United $169
Norfolk to St Louis American, Alaska, United $278
Richmond to St Louis American, Alaska, United $278
Newport News to St Louis American $311
Charlottesville to St Louis American, United $285
Harrisburg to St Louis American, Alaska, United $351
Roanoke to St Louis American, United $353
State College to St Louis American, United $502
Allentown - Bethlehem - Easton to St Louis American, United $243
Wilkes - Barre to St Louis American, United $330
Lynchburg to St Louis American $411
Atlantic City to St LouisCheck Dates
Salisbury - Ocean City to St Louis American $380
Staunton to St LouisCheck Dates
Philadelphia to Chicago American, Alaska, Frontier, Spirit, United $78
Newark to Chicago American, Alaska, JetBlue, United $147
Baltimore to Chicago American, Spirit, United $81
Philadelphia to Atlanta American, Frontier, Spirit, United $88
Baltimore to Atlanta American, Spirit, United $116
Newark to Atlanta American, Alaska, United $197
Philadelphia to Dallas - Ft Worth American, Alaska, JetBlue, Spirit, United $127
Pittsburgh to Chicago American, Frontier, United $108
Baltimore to Dallas - Ft Worth American, JetBlue, Spirit, United $97
Cheap Flights from Washington to St Louis, MO, United States, from $203 Round trip from WAS to STL