Question 1

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

Accepted Answer

The two airlines most popular with KAYAK users for flights from Washington, D.C. to St. Louis are Southwest and Delta. With an average price for the route of $356 and an overall rating of 8.0, Southwest is the most popular choice. Delta is also a great choice for the route, with an average price of $398 and an overall rating of 7.8.

Question 2

How long does a flight from Washington, D.C. to St. Louis take?

Accepted Answer

Nonstop flights from Washington, D.C. generally make it to St. Louis in 2h 10m. The flying distance between the two cities is 717 miles.

Question 3

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

Accepted Answer

Each day, there are between 9 and 14 nonstop flights that take off from Washington, D.C. and land in St. Louis, with an average flight time of 2h 15m. The most common departure time is 6:00 pm and most flights take off in the morning. Each week, there are 87 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 Washington, D.C. and St. Louis per day?

Accepted Answer

Each day, there are between 9 and 14 nonstop flights that take off from Washington, D.C. and land in St. Louis, with an average flight time of 2h 15m. The most common departure time is 6:00 pm and most flights take off in the morning. Each week, there are 87 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 Washington, D.C. to St. Louis?

Accepted Answer

In the last 5 days, the lowest price for a flight from Washington, D.C. to St. Louis was $64 for a one-way ticket and $141 for a round-trip.

Question 6

Do I need a passport to fly between Washington, D.C. and St. Louis?

Accepted Answer

No, a passport isn't needed to fly from Washington, D.C. to St. Louis. However, local authorities might ask for an official ID.

Question 7

Which airlines fly most frequently between Washington, D.C. and St. Louis?

Accepted Answer

Washington, D.C. and St. Louis are connected by different airlines. The airlines that fly that route the most regularly are Southwest (55 flights per week), American Airlines (18 flights per week), and United Airlines (14 flights per week).

Question 8

Which airlines fly most frequently between Washington, D.C. and St. Louis?

Accepted Answer

Washington, D.C. and St. Louis are connected by different airlines. The airlines that fly that route the most regularly are Southwest (55 flights per week), American Airlines (18 flights per week), and United Airlines (14 flights per week).

Question 9

What’s the cheapest day of the week to fly from Washington, D.C. to St. Louis?

Accepted Answer

If you are looking for a flight deal from Washington, D.C. to St. Louis, look for departures on Saturdays and avoid leaving on a Monday, as it's usually the priciest day. When flying back from St. Louis, Wednesday is the cheapest day to fly and Thursday is the most expensive.

Question 10

What’s the cheapest day of the week to fly from Washington, D.C. to St. Louis?

Accepted Answer

If you are looking for a flight deal from Washington, D.C. to St. Louis, look for departures on Saturdays and avoid leaving on a Monday, as it's usually the priciest day. When flying back from St. Louis, Wednesday is the cheapest day to fly and Thursday is the most expensive.

Question 11

Which airports will I be using when flying from Washington, D.C. to St. Louis?

Accepted Answer

Washington, D.C. is served by 2 major airports and there is only 1 main airport in St. Louis. You will leave Washington, D.C. from one of these airports: Washington, D.C. Reagan-National or Washington, D.C. Dulles Intl. You will be arriving at Lambert-St Louis.

Question 12

What’s the earliest departure time from Washington, D.C. to St. Louis?

Accepted Answer

Early birds can take the earliest flight from Washington, D.C. at 6:35 am and will be landing in St. Louis at 7:45 am.

Question 13

What’s the latest departure time from Washington, D.C. to St. Louis?

Accepted Answer

If you prefer to fly at night, the latest flight from Washington, D.C. to St. Louis jets off at 10:10 pm and lands at 11:32 pm.

Question 14

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

Accepted Answer

There are 3 airlines that fly nonstop from Washington, D.C. to St. Louis. They are: American Airlines, Southwest and United Airlines. The cheapest price of all airlines flying this route was found with American Airlines at $204 for a round-trip flight. On average, the best prices for this route can be found at American Airlines.

Question 15

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

Accepted Answer

There are 3 airlines that fly nonstop from Washington, D.C. to St. Louis. They are: American Airlines, Southwest and United Airlines. The cheapest price of all airlines flying this route was found with American Airlines at $204 for a round-trip flight. On average, the best prices for this route can be found at American Airlines.

Question 16

Which airlines offer Wi-Fi service onboard planes from Washington, D.C. to St. Louis?

Accepted Answer

American Airlines, Alaska Airlines, and Delta offer inflight Wi-Fi service on the Washington, D.C. to St. Louis flight route.

Question 17

Which aircraft models fly most regularly from Washington, D.C. to St. Louis?

Accepted Answer

The Boeing 737 MAX 8 is the aircraft model that flies most regularly on the Washington, D.C. to St. Louis flight route.

Question 18

Which airline alliances offer flights from Washington, D.C. to St. Louis?

Accepted Answer

SkyTeam, oneworld, and Star Alliance are the airline alliances operating flights between Washington, D.C. and St. Louis, with SkyTeam being the most commonly used for this route.

Question 19

On which days can I fly direct from Washington, D.C. to St. Louis?

Accepted Answer

There are nonstop flights from Washington, D.C. to St. Louis on a daily basis.

Question 20

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

Accepted Answer

The cheapest month for flights from Washington, D.C. to St. Louis is October, where tickets cost $327 (return) on average. On the other hand, the most expensive months are March and July, where the average cost of round-trip tickets is $448 and $428 respectively.

Question 21

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

Accepted Answer

The cheapest month for flights from Washington, D.C. to St. Louis is October, where tickets cost $327 (return) on average. On the other hand, the most expensive months are March and July, where the average cost of round-trip tickets is $448 and $428 respectively.

Question 22

How does KAYAK find such low prices on flights from Washington, D.C. to St. Louis?

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 Washington, D.C. to St. Louis.

Question 23

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

Accepted Answer

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

Question 24

What is the Hacker Fare option on flights from Washington, D.C. to St. Louis?

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 St. Louis with an airline and back to Washington, D.C. with another airline.

Question 25

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

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 St. Louis from Washington, D.C. up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Question 26

What is the cheapest layover airport when flying from Washington, D.C. to St. Louis?

Accepted Answer

Flights via Denver (DEN) offer the most affordable fares, with an average round-trip price of $163.

Question 27

What is the most popular layover airport when flying from Washington, D.C. to St. Louis?

Accepted Answer

Atlanta (ATL) is the top choice – 38% of KAYAK users who clicked on 1-stop flights from Washington, D.C. to St. Louis picked an itinerary connecting there.

Question 28

Which layover airport has the quickest connection when flying from Washington, D.C. to St. Louis?

Accepted Answer

If you prefer a quick connection, Detroit (DTW) often has the shortest layovers from Washington, D.C. to St. Louis, with an average of 0h 58m.

Question 29

Which layover airport offers the shortest total travel time from Washington, D.C. to St. Louis?

Accepted Answer

Consider flying via Milwaukee (MKE) for the shortest journey. The average one-way travel time for flights connecting there is 4h 05m.

Question 30

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

Accepted Answer

There are 4 cabin class options for the route. These are First, Business, Economy and Prem Economy. Perform a search on KAYAK to find the latest prices and availability for all cabin fares, which differ across airlines.

Question 31

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

Accepted Answer

There are 4 cabin class options for the route. These are First, Business, Economy and Prem Economy. Perform a search on KAYAK to find the latest prices and availability for all cabin fares, which differ across airlines.

Question 32

Which airlines provide the cheapest flights from Washington, D.C. to St. Louis?

Accepted Answer

In the past 5 days, the cheapest round-trip tickets from Washington, D.C. to St. Louis were found on Frontier ($141) and United Airlines ($247).

Question 33

Which airlines provide the cheapest flights from Washington, D.C. to St. Louis?

Accepted Answer

In the past 5 days, the cheapest round-trip tickets from Washington, D.C. to St. Louis were found on Frontier ($141) and United Airlines ($247).

Question 34

What is the cheapest Washington, D.C. to St. Louis flight route?

Accepted Answer

The cheapest return flight from Washington, D.C. to St. Louis costs $237 on the route between Washington, D.C. Reagan-National Airport (DCA) and St. Louis (STL). Over the past month, this route was, on average, 13% cheaper than other Washington, D.C.-St. Louis routes. It is also the most popular route.

Question 35

What is the cheapest Washington, D.C. to St. Louis flight route?

Accepted Answer

The cheapest return flight from Washington, D.C. to St. Louis costs $237 on the route between Washington, D.C. Reagan-National Airport (DCA) and St. Louis (STL). Over the past month, this route was, on average, 13% cheaper than other Washington, D.C.-St. Louis routes. It is also the most popular route.

Question 36

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

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 $449 on average.

Question 37

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

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 $449 on average.

Question 38

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

Accepted Answer

Flight prices are below average for this route right now.Flights to St. Louis from Washington, D.C. usually cost between $296 and $460 in September.
The lowest price found in the past 5 days was $141 on Frontier (Sep 14-Sep 21).

Question 39

What are the most popular airlines flying to St. Louis?

Accepted Answer

The most popular airline among KAYAK users flying to St. Louis is Southwest, followed by American Airlines and United Airlines.

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WAS - STL

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

What is the cheapest Washington, D.C. to St. Louis flight route?

What’s the cheapest day of the week to fly from Washington, D.C. to St. Louis?

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

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

Which airlines provide the cheapest flights from Washington, D.C. to St. Louis?

Which airlines fly most frequently between Washington, D.C. and St. Louis?

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

What is the most popular layover airport when flying from Washington, D.C. to St. Louis?

What is the cheapest layover airport when flying from Washington, D.C. to St. Louis?

Which layover airport offers the shortest total travel time from Washington, D.C. to St. Louis?

Which layover airport has the quickest connection when flying from Washington, D.C. to St. Louis?

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

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

How long does a flight from Washington, D.C. to St. Louis take?

What’s the earliest departure time from Washington, D.C. to St. Louis?

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