On this page, you can find and buy flight tickets from St. Louis to Washington, D.C.. The 1,143 km route is served regularly, with a total frequency of about 17 flights per week.
Flights are operated by airlines such as UA, AA, and LH. Ticket prices change constantly, so we recommend using the price trend chart and the low-fare calendar to find the best deals. Information is also available on how to get to St. Louis airport and how to reach the city after arriving in Washington.
The table shows direct flights St. Louis → Washington, D.C. on the selected date. The flight takes approximately 2 h 3 min. Regular flights are operated by United Airlines, American Airlines and Lufthansa. Departures from Lambert-St. Louis International Airport airports, arrivals at Washington Dulles International Airport, Baltimore/Washington International Thurgood Marshall Airport and Ronald Reagan National Airport.
For each flight, the following details are shown: departure time (local), arrival city and airport, flight number and airline, terminal or gate, and status. Click on a flight to open its details and go to ticket search. To view flights on a different day, change the date above the table.
Below is a calendar of the lowest flight ticket prices for St. Louis — Washington, D.C. by day. Pick a convenient date and instantly see the fare. The cheapest flights on this route start from AED 280 in ,, and the most expensive are around AED 637 in b. If your travel dates are flexible, the calendar will help you find the best price for your preferred period. To view round-trip fares, switch to the "Round trip" tab above the calendar, select your departure date — and the right-hand calendar will highlight the lowest prices for return flights on each day.
St. Louis → Washington, D.C., average one-way price
| Month | Average price | Level | Month | Average price | Level | Month | Average price | Level |
|---|---|---|---|---|---|---|---|---|
| Jan | AED 529 | medium | May | AED 587 | medium | Sep | AED 510 | low |
| Feb | AED 698 | high | Jun | AED 659 | high | Oct | AED 549 | medium |
| Mar | AED 679 | high | Jul | AED 679 | high | Nov | AED 659 | high |
| Apr | AED 568 | medium | Aug | AED 472 | low | Dec | AED 698 | high |
Some values are estimated based on seasonality.
The warmest month in Washington is July, with an average maximum temperature of 31.5°C; this period also sees the highest rainfall (140.67 mm). The coldest weather and frequent frosts occur in January, when temperatures drop to -0.8°C.
The lowest flight prices are recorded in August — AED 317. The most expensive time to travel is November, when ticket costs rise to AED 637, which is significantly higher than the annual average.
In terms of balancing price and weather, it's optimal to plan your trip for October, when the summer heat subsides and flight costs remain moderate. It is recommended to avoid end-of-year bookings if your budget is limited.
Three airlines operate on this route, with United Airlines and American Airlines providing the majority of flights. The total flight frequency is about 17 flights per week, including direct flights and connection options. You can find detailed information about the flight schedule and specific carriers in the interactive list below.
Flights St. Louis — Washington, D.C. depart from Lambert-St. Louis International Airport and arrive at Washington Dulles International Airport, Baltimore/Washington International Thurgood Marshall Airport and Ronald Reagan National Airport. Below are pages for the cities, countries, and airports on the route: airlines, schedules, and travel guides.
With a distance of 1,143 km between the cities, the net flight time for a direct flight is approximately 1 hour and 40 minutes. Travel time may vary slightly depending on weather conditions and the chosen airline.
Regular flights on this route are operated by UA, AA, and LH. The current list of carriers and their schedules are presented on this page.
Yes, there are direct flights between the cities. You can check the availability of seats for specific dates using the search form above.
Flight ticket prices are dynamic and depend on the season and how far in advance you book. The current minimum is displayed in the low-fare calendar block.
Flights from St. Louis arrive at Washington (WAS) airports serving the capital region. The exact arrival airport will be indicated on your electronic ticket when you select a specific flight.
Where travelers fly most — pick a route and check prices
