Cheap flights from St Louis to Washington Dulles Intl (STL - IAD)

Flight FAQs

From St Louis to Washington Dulles Intl

What days are nonstop flights available from St Louis to Washington Dulles Intl?

Nonstop flights are available for this route on the following days: Sunday, Monday, Tuesday, Wednesday, Thursday, Friday, Saturday.

How popular is this flight route?

The Lambert-St Louis to Washington Dulles Intl flight path was viewed by 22 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

What percent of flights are delayed?

When booking remember that flights St Louis to Washington Dulles Intl are typically on time.

How many passenger seats are available on a flight on this route?

Generally, 200 passengers can be accommodated when flying from Lambert-St Louis to Washington Dulles Intl on commercial airlines.

What is the cheapest airline for this route?

When searching, try setting your filters to view flights for Trans States Airlines, Inc., as currently they have the cheapest options available from St Louis to Washington Dulles Intl. On average you can find 74 flights for this flight path daily.

How long does the flight from St Louis to Washington Dulles Intl take?

A nonstop flight takes up to 2 hours, covering a distance of 434 miles.

How many flights depart from St Louis to Washington Dulles Intl on average per day?

On average, you can expect to see 10 flights from Lambert-St Louis to Washington Dulles Intl a day.
Morning (6am - Noon) - 20% of flight departures
Afternoon (Noon - 6pm) - 20% of flight departures
Evening (6pm - Midnight) - 60% of flight departures

Does it rain more in St Louis or Washington Dulles Intl?

When traveling, it's generally smart to pack in preparation for rain or any other conditions that may arise. The rainfall in St Louis is roughly similar to Washington Dulles Intl. You can assume this to be the case over the next 13 days.

Is St Louis weather warmer or cooler than Washington Dulles Intl?

Expect the weather to be around 90 °F on average in July. As the temperature peaks, try to get your plans done early, as flight price and availability will have an impact on your travels. The climate in Washington Dulles Intl is generally colder than in St Louis.