Question 1

Which is the best airline for flights from St. Louis to Washington, D.C., Southwest or American Airlines?

Accepted Answer

The two airlines most popular with KAYAK users for flights from St. Louis to Washington, D.C. are Southwest and American Airlines. With an average price for the route of $377 and an overall rating of 8.0, Southwest is the most popular choice. American Airlines is also a great choice for the route, with an average price of $345 and an overall rating of 7.1.

Question 2

How long does a flight from St. Louis to Reagan Washington National Airport take?

Accepted Answer

The average nonstop flight takes 1h 55m, covering a distance of 717 miles.

Question 3

How many flights are there between St. Louis and Washington, D.C. Reagan-National Airport per day?

Accepted Answer

Each day, there are between 4 and 7 nonstop flights that take off from St. Louis and land in Washington, D.C. Reagan-National Airport, with an average flight time of 2h 07m. The most common departure time is 1:00 pm and most flights take off in the morning. Each week, there are 45 flights. The most frequent day of departure is Monday, when 16% of all weekly flights depart. The fewest flights depart on a Saturday.

Question 4

How many flights are there between St. Louis and Washington, D.C. Reagan-National Airport per day?

Accepted Answer

Each day, there are between 4 and 7 nonstop flights that take off from St. Louis and land in Washington, D.C. Reagan-National Airport, with an average flight time of 2h 07m. The most common departure time is 1:00 pm and most flights take off in the morning. Each week, there are 45 flights. The most frequent day of departure is Monday, when 16% of all weekly flights depart. The fewest flights depart on a Saturday.

Question 5

What is the cheapest flight from St. Louis to Washington, D.C. Reagan-National Airport?

Accepted Answer

In the last 5 days, the lowest price for a flight from St. Louis to Washington, D.C. Reagan-National Airport was $90 for a one-way ticket and $243 for a round-trip.

Question 6

Do I need a passport to fly between St. Louis and Reagan Washington National Airport?

Accepted Answer

A passport is not required to fly from St. Louis to Reagan Washington National Airport.

Question 7

What’s the cheapest day of the week to fly from St. Louis to Reagan Washington National Airport?

Accepted Answer

When flying from St. Louis to Reagan Washington National Airport, you should consider leaving on a Saturday and avoid Sundays if you are looking for the best rates. For your return to St. Louis, you’ll find the best rates on Wednesdays and the most expensive ones on Sundays.

Question 8

What’s the cheapest day of the week to fly from St. Louis to Reagan Washington National Airport?

Accepted Answer

When flying from St. Louis to Reagan Washington National Airport, you should consider leaving on a Saturday and avoid Sundays if you are looking for the best rates. For your return to St. Louis, you’ll find the best rates on Wednesdays and the most expensive ones on Sundays.

Question 9

What’s the earliest departure time from St. Louis to Reagan Washington National Airport?

Accepted Answer

Early birds can take the earliest flight from St. Louis at 6:00 am and will be landing in Washington, D.C. Reagan-National Airport at 9:19 am.

Question 10

What’s the latest departure time from St. Louis to Reagan Washington National Airport?

Accepted Answer

If you prefer to fly at night, the latest flight from St. Louis to Washington, D.C. Reagan-National Airport jets off at 7:55 pm and lands at 10:55 pm.

Question 11

Which airlines fly non-stop between St. Louis and Washington, D.C. Reagan-National Airport?

Accepted Answer

There are 2 airlines that fly nonstop from St. Louis to Washington, D.C. Reagan-National Airport. They are American Airlines and Southwest. The cheapest airline for this route is American Airlines, with the best round-trip deal found costing $201. On average, the best prices for this route can be found at American Airlines.

Question 12

Which airlines fly non-stop between St. Louis and Washington, D.C. Reagan-National Airport?

Accepted Answer

There are 2 airlines that fly nonstop from St. Louis to Washington, D.C. Reagan-National Airport. They are American Airlines and Southwest. The cheapest airline for this route is American Airlines, with the best round-trip deal found costing $201. On average, the best prices for this route can be found at American Airlines.

Question 13

Which airlines offer Wi-Fi service onboard planes from St. Louis to Reagan Washington National Airport?

Accepted Answer

American Airlines, Alaska Airlines, JetBlue, Delta, and Air Canada offer inflight Wi-Fi service on the St. Louis to Reagan Washington National Airport flight route.

Question 14

Which aircraft models fly most regularly from St. Louis to Reagan Washington National Airport?

Accepted Answer

The Boeing 737 MAX 8 is the aircraft model that flies most regularly on the St. Louis to Reagan Washington National Airport flight route.

Question 15

Which airline alliances offer flights from St. Louis to Reagan Washington National Airport?

Accepted Answer

oneworld is the only airline alliance operating flights between St. Louis and Reagan Washington National Airport.

Question 16

On which days can I fly direct from St. Louis to Reagan Washington National Airport?

Accepted Answer

There are nonstop flights from St. Louis to Reagan Washington National Airport on a daily basis.

Question 17

What is the cheapest month to fly from St. Louis to Washington, D.C. Reagan-National Airport?

Accepted Answer

The cheapest month for flights from St. Louis to Washington, D.C. Reagan-National Airport is October, where tickets cost $317 (return) on average. On the other hand, the most expensive months are February and August, where the average cost of round-trip tickets is $590 and $430 respectively.

Question 18

What is the cheapest month to fly from St. Louis to Washington, D.C. Reagan-National Airport?

Accepted Answer

The cheapest month for flights from St. Louis to Washington, D.C. Reagan-National Airport is October, where tickets cost $317 (return) on average. On the other hand, the most expensive months are February and August, where the average cost of round-trip tickets is $590 and $430 respectively.

Question 19

How does KAYAK find such low prices on flights from St. Louis to Reagan Washington National Airport?

Accepted Answer

KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from St. Louis to Reagan Washington National Airport.

Question 20

How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from St. Louis to Reagan Washington National Airport?

Accepted Answer

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Reagan Washington National Airport from St. Louis is likely to change within 7 days, so travelers know whether to wait or book now.

Question 21

What is the Hacker Fare option on flights from St. Louis to Reagan Washington National Airport?

Accepted Answer

Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Reagan Washington National Airport with an airline and back to St. Louis with another airline. Booking your flights between St. Louis and DCA can sometimes prove cheaper using this method.

Question 22

What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from St. Louis to Reagan Washington National Airport?

Accepted Answer

Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Reagan Washington National Airport from St. Louis up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Question 23

What is the cheapest layover airport when flying from St. Louis to Reagan Washington National Airport?

Accepted Answer

Flights via Atlanta (ATL) offer the most affordable fares, with an average round-trip price of $205.

Question 24

What is the most popular layover airport when flying from St. Louis to Reagan Washington National Airport?

Accepted Answer

Denver (DEN) is the top choice – 64% of KAYAK users who clicked on 1-stop flights from St. Louis to Reagan Washington National Airport picked an itinerary connecting there.

Question 25

Which layover airport has the quickest connection when flying from St. Louis to Reagan Washington National Airport?

Accepted Answer

If you prefer a quick connection, Detroit (DTW) often has the shortest layovers from St. Louis to Reagan Washington National Airport, with an average of 0h 52m.

Question 26

Which layover airport offers the shortest total travel time from St. Louis to Reagan Washington National Airport?

Accepted Answer

Consider flying via Detroit (DTW) for the shortest journey. The average one-way travel time for flights connecting there is 3h 57m.

Question 27

Which cabin class options are there for flights between St. Louis and Washington, D.C. Reagan-National Airport?

Accepted Answer

There are 3 cabin class options for the route. These are First, Business and Economy. Perform a search on KAYAK to find the latest prices and availability for all cabin fares, which differ across airlines.

Question 28

Which cabin class options are there for flights between St. Louis and Washington, D.C. Reagan-National Airport?

Accepted Answer

There are 3 cabin class options for the route. These are First, Business and Economy. Perform a search on KAYAK to find the latest prices and availability for all cabin fares, which differ across airlines.

Question 29

Which airlines provide the cheapest flights from St. Louis to Reagan Washington National Airport?

Accepted Answer

In the past 5 days, the cheapest round-trip tickets from St. Louis to Reagan Washington National Airport were found on Frontier ($243) and Southwest ($246).

Question 30

Which airlines provide the cheapest flights from St. Louis to Reagan Washington National Airport?

Accepted Answer

In the past 5 days, the cheapest round-trip tickets from St. Louis to Reagan Washington National Airport were found on Frontier ($243) and Southwest ($246).

Question 31

How far in advance should I book a flight from St. Louis to Washington, D.C. Reagan-National Airport?

Accepted Answer

To get a below average price on the flight from St. Louis to Washington, D.C. Reagan-National Airport, you should book around 4 weeks before departure, which saves you about 52% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 20 weeks before departure.

Question 32

How far in advance should I book a flight from St. Louis to Washington, D.C. Reagan-National Airport?

Accepted Answer

To get a below average price on the flight from St. Louis to Washington, D.C. Reagan-National Airport, you should book around 4 weeks before departure, which saves you about 52% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 20 weeks before departure.

Question 33

Can I save money by flying with a layover from St. Louis to Washington, D.C. Reagan-National Airport?

Accepted Answer

Yes, flying with a layover may cost you more time, but you can also save money on the route, with a 1 stop layover the cheapest option at $345 on average.

Question 34

Can I save money by flying with a layover from St. Louis to Washington, D.C. Reagan-National Airport?

Accepted Answer

Yes, flying with a layover may cost you more time, but you can also save money on the route, with a 1 stop layover the cheapest option at $345 on average.

Question 35

How much is a round-trip flight from St. Louis to Washington, D.C. Reagan-National Airport?

Accepted Answer

Flight prices are below average for this route right now.Flights to Washington, D.C. Reagan-National Airport from St. Louis usually cost between $293 and $522 in October.
The lowest price found in the past 5 days was $243 on Frontier (Oct 9-Oct 17).

Question 36

What are the most popular airlines flying to Washington, D.C. Reagan-National Airport?

Accepted Answer

The most popular airline among KAYAK users flying to Washington, D.C. Reagan-National Airport is Southwest, followed by American Airlines and Frontier.

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Everything you should know

Cheap Flights from St. Louis to Reagan-National (STL-DCA)

Recent round-trip flight deals from St. Louis to Reagan-National

Recent one-way flight deals from St. Louis to Reagan-National

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KAYAK's insights & trends for St. Louis to Reagan-National flights

How much is a round-trip flight from St. Louis to Washington, D.C. Reagan-National Airport?

What’s the cheapest day of the week to fly from St. Louis to Reagan Washington National Airport?

What is the cheapest month to fly from St. Louis to Washington, D.C. Reagan-National Airport?

Can I save money by flying with a layover from St. Louis to Washington, D.C. Reagan-National Airport?

How far in advance should I book a flight from St. Louis to Washington, D.C. Reagan-National Airport?

Which airlines provide the cheapest flights from St. Louis to Reagan Washington National Airport?

Which airlines fly non-stop between St. Louis and Washington, D.C. Reagan-National Airport?

What is the most popular layover airport when flying from St. Louis to Reagan Washington National Airport?

What is the cheapest layover airport when flying from St. Louis to Reagan Washington National Airport?

Which layover airport offers the shortest total travel time from St. Louis to Reagan Washington National Airport?

Which layover airport has the quickest connection when flying from St. Louis to Reagan Washington National Airport?

Which cabin class options are there for flights between St. Louis and Washington, D.C. Reagan-National Airport?

How many flights are there between St. Louis and Washington, D.C. Reagan-National Airport per day?

How long does a flight from St. Louis to Reagan Washington National Airport take?

What’s the earliest departure time from St. Louis to Reagan Washington National Airport?

What’s the latest departure time from St. Louis to Reagan Washington National Airport?

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