Question 1

What are the cheapest airlines flying from Washington, D.C. to St. Louis round-trip?

Accepted Answer

Our cheapest airline available from Washington, D.C. to St. Louis is Spirit Airlines. Our recent data shows that you can find tickets from as low as $99 on this airline. An additional option worth looking into is Frontier, starting at $150. These flights start at 69% lower than the current average price 3 months from now.

Question 2

What are the cheapest airlines to fly from Washington, D.C. to St. Louis one-way?

Accepted Answer

To fly one-way, consider booking your trip with Spirit Airlines, which is currently one of the cheapest options available, starting at $56. Frontier flights start at $76 while deals on United Airlines start at $85 one-way.

Question 3

E

Accepted Answer

Currently, September is the cheapest month in which you can book a flight from Washington, D.C. to St. Louis (average of $322). Flying from Washington, D.C. to St. Louis in July is currently the most expensive (average of $372). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

January

$326

February

$331

March

$357

April

$337

May

$342

June

$369

July

$372

August

$336

September

$322

October

$324

November

$336

December

$326

Question 4

When is the best time to book a flight from Washington, D.C. to St. Louis?

Accepted Answer

To ensure you get the cheapest price possible for a flight from Washington, D.C. to St. Louis, you should look to book at least 75 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

Question 5

When is the cheapest time to fly from Washington, D.C. to St. Louis?

Accepted Answer

Travelers seeking maximum savings on their Washington, D.C. to St. Louis flight should consider departing on Tuesday at noon when fares are most often at their lowest. Wednesday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

Question 6

How recently were the Washington, D.C. to St. Louis flight deals updated?

Accepted Answer

The Washington, D.C. to St. Louis flight deals you see on this page were last updated on 5/13.

Question 7

What are the most popular airlines that fly from Washington, D.C. to St. Louis?

Accepted Answer

When booking a flight from Washington, D.C. to St. Louis, you may want to consider flying on American Airlines, Delta or United Airlines as they are the most popular for this route.

Question 8

What are the most popular routes from Washington, D.C. to St. Louis?

Accepted Answer

When deciding which route to take from Washington, D.C. to St. Louis consider Washington, D.C. Reagan-National - Lambert-St Louis, Washington, D.C. Dulles Intl - Lambert-St Louis or Baltimore/Washington - Lambert-St Louis as they are the most popular.

Question 9

What are the cheapest flights from Washington, D.C. to St. Louis?

Accepted Answer

The cheapest flight price from Washington, D.C. to St. Louis is $100. On average you can expect to pay $456. The most popular route, (Washington, D.C. Reagan-National - Lambert-St Louis), can usually be booked for $154.

Question 10

What are the most reliable airlines from Washington, D.C. to St. Louis?

Accepted Answer

Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Washington, D.C. to St. Louis on time: GoJet (90%), United Airlines (90%), Lufthansa (87%).

Question 11

Can I find flights from Washington, D.C. to St. Louis for under $100 on Cheapflights?

Accepted Answer

Yes, there are multiple flights from Washington, D.C. to St. Louis for under $100. The cheapest flight booked recently is on Spirit Airlines for just $99, but on average you can expect to pay $145.

Question 12

Are there nonstop flights from Washington, D.C. to St. Louis for under $200 on Cheapflights?

Accepted Answer

Cheapflights has at least 20 direct flights from Washington, D.C. to St. Louis under $200. A good price for a nonstop flight from Washington, D.C. to St. Louis is less than $244.

Question 13

Are there last-minute flights available from Washington, D.C. to St. Louis for under $200?

Accepted Answer

There are currently 20+ open flights from Washington, D.C. to St. Louis within the next 7 days for less than $200.

Question 14

What is the cheapest day to fly round-trip from Washington, D.C. to St. Louis?

Accepted Answer

Sunday flights are found to be more expensive to fly from Washington, D.C. to St. Louis. This shouldn’t discourage you from searching, as you can still find great deals by being flexible with your options. Use our search form to find deals on tickets to St. Louis.

Question 15

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

Accepted Answer

Find a great deal and save up to 147% by booking at least 45 days prior to your desired departure date, rather than waiting until the week of travel. According to our data, there are a number of flights available from Washington, D.C. to St. Louis within the next two weeks, with the cheapest ticket starting at $399.

Question 16

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

Accepted Answer

The best pricing can be found in the month of January. Prices to St. Louis from Washington, D.C. average $327. You can even find prices in January for less than $327, as users have found deals to St. Louis from as low as $130. The month of March appears to be one of the more expensive times to travel to St. Louis from Washington, D.C.. Flying in the targeted month can save you up to 15%.

Question 17

When is the cheapest time to fly from Washington, D.C. to St. Louis (WAS - STL)?

Accepted Answer

It’s optimal to fly from Washington, D.C. to St. Louis at noon. By choosing this option you can save up to 15% on the cost of your flight, compared to a flight in the afternoon.

Question 18

What airport do you fly into for flights to St. Louis from Washington, D.C.?

Accepted Answer

Lambert-St Louis (STL), located 12.7 mi from the city center, is the airport you fly into when you book flights from Washington, D.C. to St. Louis. 6 airlines have flights to Lambert-St Louis from Washington, D.C. on a regular basis. Booking flights from Washington, D.C. to Lambert-St Louis should not be difficult; the airport handles an average of 11 inbound flights from Washington, D.C. per day.

Question 19

Accepted Answer

If you’re traveling from Washington, D.C. to St. Louis, one of the more common airlines traveling that route is Spirit Airlines. Washington, D.C. to St. Louis flights are typically 23% cheaper than other airlines traveling the same route. Flights from Spirit Airlines typically cost $430.61 RT. The cheapest Spirit Airlines flight found for this route was $326. When traveling from Washington, D.C. to St. Louis on Spirit Airlines, the most popular airport to depart from is Washington, D.C. Dulles Intl Airport and the most popular airport to arrive at is Lambert-St Louis Airport. When flying from Washington, D.C. to St. Louis, Spirit Airlines flights are 13% more popular than any other airline flying that same route.

Question 20

Accepted Answer

One of the most popular airlines traveling from Washington, D.C. to St. Louis is Frontier. Flights from Frontier traveling this route typically cost $395.38 RT. This price is typically 38% cheaper than other airlines that offer Washington, D.C. to St. Louis flights. When booking this route, the cheapest RT price found was $174. Washington, D.C. Dulles Intl Airport is the most common Washington, D.C. airport to take off from when flying to St. Louis. Lambert-St Louis Airport is the most popular arrival airport in St. Louis. When flying from Washington, D.C. to St. Louis, Frontier flights are 3% more popular than any other airline flying that same route.

Question 21

What does IAD to STL mean?

Accepted Answer

This is defined as Washington, D.C. Dulles Intl Airport (IAD) and Lambert-St Louis Airport (STL). Codes like Lambert-St Louis Airport are often used to just call airports uniquely. While you’re still figuring out your travel plans, it’s not a bad idea to learn the names and codes of other airports around these areas: Baltimore/Washington Airport (BWI), Washington, D.C. Reagan-National Airport (DCA).

Question 22

Can I find deals for flights from Washington, D.C. to St. Louis that include extra baggage allowance?

Accepted Answer

The amount of baggage you can bring on your Washington, D.C. to St. Louis flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

Question 23

Can I find deals on flights from Washington, D.C. to St. Louis with specific airlines?

Accepted Answer

Yes, Cheapflights allows you to browse and filter Washington, D.C. to St. Louis flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

Question 24

Can I find deals for flights from Washington, D.C. to St. Louis that include hotel bookings?

Accepted Answer

Yes. In addition to deals on Washington, D.C. to St. Louis flights, Cheapflights offers vacation packages that include both flights and hotel.

Question 25

How can I find direct flights from Washington, D.C. to St. Louis?

Accepted Answer

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Washington, D.C. to St. Louis.

Question 26

Can I find deals for business class flights from Washington, D.C. to St. Louis?

Accepted Answer

Yes. Cheapflights offers flight deals from Washington, D.C. to St. Louis by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

Question 27

Can I find deals for flights from Washington, D.C. to St. Louis that allow pets onboard?

Accepted Answer

Many airlines flying from Washington, D.C. to St. Louis offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

Question 28

Can I find deals on last-minute flights from Washington, D.C. to St. Louis?

Accepted Answer

Yes, you can often find last-minute deals on Washington, D.C. to St. Louis flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

Question 29

How does Cheapflights help users find flights from Washington, D.C. to St. Louis?

Accepted Answer

Cheapflights helps you search for flights from Washington, D.C. to St. Louis via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

Question 30

Why should you use Cheapflights to find cheap flight tickets from Washington, D.C. to St. Louis?

Accepted Answer

Cheapflights simply makes it quick and affordable to book flights from Washington, D.C. to St. Louis by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

Question 31

Can Cheapflights find flights from Washington, D.C. to St. Louis with no change fees?

Accepted Answer

Need flexible booking options for your flight to St. Louis from Washington, D.C.? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

Question 32

Can Cheapflights notify me if prices for flights from Washington, D.C. to St. Louis become cheaper?

Accepted Answer

Not ready to book yet? You can track prices for flights from Washington, D.C. to St. Louis on Cheapflights with our Price Alert feature and get notified when better prices are available.

Airline	Cheapest	Average	Flexibility	On-time
Frontier	Cheapest$98	Average$212	FlexibilityNo cancel fee	On-time62%	Search Frontier flights
Spirit Airlines	Cheapest$105	Average$182	FlexibilityNo cancel fee	On-time65%	Search Spirit Airlines flights
United Airlines	Cheapest$174	Average$395	FlexibilityNo cancel fee	On-time69%	Search United Airlines flights
Delta	Cheapest$177	Average$342	FlexibilityNo cancel fee	On-timeN/A	Search Delta flights
American Airlines	Cheapest$182	Average$409	FlexibilityNo cancel fee	On-time71%	Search American Airlines flights

3%of flight departures	Early morningMidnight to 6 am
38%of flight departures	Morning6 am to noon
51%of flight departures	AfternoonNoon to 6 pm
8%of flight departures	Evening6 pm to midnight

Sunday	12daily flights
Monday	12daily flights
Tuesday	12daily flights
Wednesday	12daily flights
Thursday	12daily flights
Friday	12daily flights
Saturday	11daily flights

Popular in	March
Cheapest in	January
Round-trip from	$322
One-way from	$85

Cheap flights from Washington, D.C. (WAS) to St. Louis (STL) from $56

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 6/5. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.

The best prices from Washington, D.C. to Lambert-St Louis are usually found in January or September, booked 75 days in advance, depart on a Saturday or Thursday and return on a Wednesday

Cheap flight deals from Washington, D.C. to St. Louis

Popular in

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Round-trip from

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What is the cheapest day to fly round-trip from Washington, D.C. to St. Louis?

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

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

When is the cheapest time to fly from Washington, D.C. to St. Louis (WAS - STL)?

Cheap Spirit Airlines flights from Washington, D.C. to St. Louis

Peruse some of the lowest-priced Spirit Airlines flights we've found from Washington, D.C. to St. Louis. Be sure to come back soon if the deals available don't appeal to you at this time.

Cheap Frontier flights from Washington, D.C. to St. Louis

Some of the best deals we've found on Frontier flights traveling from Washington, D.C. to St. Louis. Ensure the flight price, dates, time, and airline match your criteria before you book.

Cheap Washington, D.C. to St. Louis flights in May & June 2024

Find cheap flight options from Washington, D.C. to St. Louis specifically for the months of May and June 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 2,633,403 searches. Prices were last updated on May 14, 2024.

The lowest fares we've come across on flights traveling from Washington, D.C. to St. Louis in May and June 2024. If these deals don't appeal to you, be sure to come back soon for more options.

Washington, D.C. to St. Louis 2024 flight deals

Discover exclusive flight deals for travel between Washington, D.C. and St. Louis in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 2,633,403 searches. Data last updated May 14, 2024.

The lowest fares we've come across on flights traveling from Washington, D.C. to St. Louis in May and June 2024. If these deals don't appeal to you, be sure to come back soon for more options.

Non-stop flights to St. Louis from Washington, D.C.

To help reduce your travel time, choose from one of these non-stop flights from Washington, D.C. to St. Louis. Select from other flights from Washington, D.C. to St. Louis by using the search form above.

Washington, D.C. to St. Louis flights leaving soon

Users seeking a last-minute flight from Washington, D.C. to St. Louis should consider booking one of these fares. Users should be sure to double check the price, date, and time of their last-minute flight.

One-way flights to St. Louis from Washington, D.C.

Take a look at some of the best available options we've come across on one-way flights from Washington, D.C. to St. Louis. Those needing a return flight from Washington, D.C. to St. Louis can use the search form above.

Find flights from Washington, D.C. to St. Louis within your budget

When is the best time to book a flight from Washington, D.C. to St. Louis?

Use this chart to determine the optimal time to book a round-trip flight from Washington, D.C. to St. Louis. Price data was last updated on May 10, 2024.

To ensure you get the cheapest price possible for a flight from Washington, D.C. to St. Louis, you should look to book at least 75 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

When is the cheapest time to fly from Washington, D.C. to St. Louis?

Use this chart to determine the cheapest time to fly round-trip from Washington, D.C. to St. Louis. Price data was last updated on May 12, 2024.

Average price of flights to St. Louis by month

Plan your trip from Washington, D.C. to St. Louis by taking into account the cheapest months to travel. The average price of a one-way flight from Washington, D.C. to St. Louis is currently $73 while a round-trip flight costs $154. Price data was last updated on May 5, 2024.

Temperature and rainfall in St. Louis by month

Plan your trip to St. Louis by taking into account the average temperature and rainfall totals by month.

Reviews of airlines servicing St. Louis

Related info for your journey

Find useful and relevant information for your journey from Washington, D.C. to St. Louis. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

What airport do you fly into for flights to St. Louis from Washington, D.C.?

Can I find flights from Washington, D.C. to St. Louis for under $100 on Cheapflights?

Are there nonstop flights from Washington, D.C. to St. Louis for under $200 on Cheapflights?

Are there last-minute flights available from Washington, D.C. to St. Louis for under $200?

What are the cheapest airlines flying from Washington, D.C. to St. Louis round-trip?

What are the cheapest airlines to fly from Washington, D.C. to St. Louis one-way?

What are the most popular routes from Washington, D.C. to St. Louis?

What are the most popular airlines that fly from Washington, D.C. to St. Louis?

What are the most reliable airlines from Washington, D.C. to St. Louis?

What are the cheapest flights from Washington, D.C. to St. Louis?

What does IAD to STL mean?

Can I find deals for flights from Washington, D.C. to St. Louis that include extra baggage allowance?

Can I find deals on flights from Washington, D.C. to St. Louis with specific airlines?

Can I find deals for flights from Washington, D.C. to St. Louis that include hotel bookings?

How can I find direct flights from Washington, D.C. to St. Louis?

Can I find deals for business class flights from Washington, D.C. to St. Louis?

Can I find deals for flights from Washington, D.C. to St. Louis that allow pets onboard?

Can I find deals on last-minute flights from Washington, D.C. to St. Louis?

How recently were the Washington, D.C. to St. Louis flight deals updated?

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Top 5 airlines flying from Washington, D.C. to St. Louis

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Search flights from Washington, D.C. to St. Louis by cabin class

Find flights from Washington, D.C. to St. Louis, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Hourly flight availability from Washington, D.C. to St. Louis

Find hourly flight availability from Washington, D.C. to St. Louis. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated May 14, 2024.

Weekly flight availability from Washington, D.C. to St. Louis

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How does Cheapflights help users find flights from Washington, D.C. to St. Louis?

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Can Cheapflights find flights from Washington, D.C. to St. Louis with no change fees?

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Alternative routes for Washington, D.C. to St. Louis
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