Cheap flights from District of Columbia to St. Louis from $75
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from District of Columbia to St. Louis departing on 4/2. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
Deals available from 900+ travel sites.
Big names and deals
Big names and deals
Search 100s of travel sites to compare prices.Filter for what you want
Filter for what you want
Free Wi-Fi? Stopover? Instantly customize your results.Trusted and free
Trusted and free
We’re completely free to use - no hidden charges or fees.Price Alerts
Price Alerts
Not ready to book? to track prices.Find the cheapest flights from District of Columbia to St. Louis
Cheap round-trip flights
Cheap one-way flights
Cheap last minute flights
Cheap direct flights
American Airlines flights from District of Columbia to St. Louis
Our best American Airlines deals on District of Columbia to St. Louis flight tickets
Southwest flights from District of Columbia to St. Louis
Our best Southwest deals on District of Columbia to St. Louis flight tickets
See travel insights to St. Louis from
How to get the cheapest flight ticket from District of Columbia to St. Louis
Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip
What is the cheapest month to fly to St. Louis?
In general, August is the cheapest month to fly from District of Columbia to St. Louis. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $289. The month of May is another great option to travel to St. Louis, with average flight prices from District of Columbia averaging around $299.
What is the cheapest day to depart on your flight to St. Louis?
The cheapest day to depart on your flight to St. Louis is on a Wednesday when prices can be found for as low as $350. This is often the case because there is less demand to fly during this day of the week. If your travel schedule is flexible, try to avoid departing on a Sunday because tickets tend to average around $401. These prices are subject to change though, so be sure to set up a Price Alert for flights to St. Louis.
What is the cheapest time of day to depart on your flight to St. Louis?
Flying to St. Louis from District of Columbia at noon is the least expensive time of day to depart. momondo users have found prices as low as $308 when looking at flights departing at noon. In the morning is when there is more demand to fly to St. Louis, so prices are often more expensive at around $400 per ticket.
What is the cheapest District of Columbia to Lambert-St Louis flight route?
Fly from Baltimore/Washington to Lambert-St Louis for the best District of Columbia - Lambert-St Louis flight prices
How far in advance should I book a flight to St. Louis?
You are more likely to see cheaper flights to St. Louis from District of Columbia when booking 18 weeks ahead of your departure date. In general, you can expect to find flights to St. Louis for around $434 when searching 18 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to St. Louis from District of Columbia for as low as $279 on momondo.
What cabin class options are available on District of Columbia to Lambert-St Louis flights?
There are 4 cabin classes available to choose from on District of Columbia to Lambert-St Louis flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.
What is the cheapest airline that flies from District of Columbia to Lambert-St Louis?
United Airlines, American Airlines, and Southwest are the most popular carriers operating from District of Columbia to Lambert-St Louis
What airlines fly to St. Louis?
American Airlines, Southwest and United Airlines are the top three most popular airlines that fly to St. Louis from District of Columbia according to our data. American Airlines is the first choice among our users, with 47% of people opting to fly with this airline when traveling to St. Louis. Keep in mind that there are 6 different airlines that fly to St. Louis on a routine basis, so you have a few additional options to choose from.
How many flights depart from District of Columbia to St. Louis on average per day?
As of February 2025, there are 13 flights per day flying from District of Columbia to St. Louis. The most common time of day flights depart is 5:00PM, with 48% of flights taking off in the afternoon.
How many flights depart from District of Columbia to St. Louis on average per week?
As of February 2025, 93 flights take off from District of Columbia and land in St. Louis each week. The most common flight departure day for this route is Thu, with 16% of weekly flights taking off on this day.
Cheap District of Columbia to St. Louis flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from District of Columbia to St. Louis
When did momondo last update prices for flights from District of Columbia to Lambert-St Louis Airport?
Prices for flights from District of Columbia to Lambert-St Louis Airport are refreshed on a daily basis.
How many operators does momondo search for flights from District of Columbia to Lambert-St Louis Airport?
As of February 2025, there are 4 operators available to choose from for flights from District of Columbia to Lambert-St Louis Airport.
How old do you have to be to fly from District of Columbia to Lambert-St Louis Airport?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from District of Columbia to Lambert-St Louis Airport.
What documentation or ID do you need to fly to Lambert-St Louis Airport?
The required travel and health documents for your Lambert-St Louis Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Lambert-St Louis Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
What is the most popular plane model from District of Columbia to St. Louis?
Based on momondo bookings for flights between District of Columbia and St. Louis, the leading plane model is Boeing 737-700 Passenger/BBJ1 (winglets), making up 18.23% of the total bookings. Other popular models include Boeing 737 MAX 8 with 15.68%, Canadair (Bombardier) Regional Jet 700 with 14.89%, and Canadair (Bombardier) Regional Jet CRJ-550 with 14.03%.
Best airlines flying from District of Columbia to St. Louis
Compare and see reviews for airlines that fly from District of Columbia to St. Louis with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $108 | Free Cancellation | Rating 6.0 3,339 reviews | |||
| PriceFrom $133 | Free Cancellation | Rating 6.3 7,980 reviews | |||
| PriceFrom $158 | Free Cancellation | Rating 7.4 8,723 reviews | |||
| PriceFrom $175 | Free Cancellation | Rating 8.0 8,140 reviews | |||
| PriceFrom $183 | Free Cancellation | Rating 7.2 10,000 reviews | |||
| PriceFrom $220 | Free Cancellation | Rating 8.1 4,362 reviews |
Traveling to a place near St. Louis?
Book flights to St. Louis if you plan to visit one of these locationsWhy use momondo?
Why should I use momondo to find a flight deal from District of Columbia to St. Louis?
momondo collates all your flight options in one place and lets you filter them to find the perfect flight from District of Columbia to St. Louis. momondo saves you time and could save you money on your trip.
Can I find flights from District of Columbia to St. Louis with flexible booking policies on momondo?
Yes. All flights to St. Louis from District of Columbia on momondo can be compared and filtered by various policies on offer, including flexible booking.
How can momondo help me find flights from District of Columbia to St. Louis?
Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to St. Louis from District of Columbia.
I’m not ready to book a flight from District of Columbia to St. Louis right now. Can momondo alert me if prices change?
Of course. momondo tracks the price of District of Columbia to St. Louis flights. All you need is a valid email address and we will do the rest; it is that quick and easy.