HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
St. Louis

$104+ Cheap flights from District of Columbia to St. Louis (STL)

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 2/18. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — STL
Nov 26 — Dec 31
Tue 11/26
Tue 12/3
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from District of Columbia to St. Louis with Cheapflights

1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”
2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.
3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from District of Columbia to St. Louis

Discover tips and strategies to find the most affordable flight options for your journey from District of Columbia (USDC) to St. Louis (STL). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated November 21, 2024.

Find flight deals from District of Columbia to St. Louis

Cheapest flights from District of Columbia to St. Louis
Explore the most affordable flight options available from District of Columbia to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 21, 2024.

This CheapOair deal was found by Cheapflights users on 11/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/67:19 pmIAD - STL
1 stop28h 27mFrontier
Sun 12/85:02 pmSTL - IAD
1 stop22h 54mFrontier
Deal found 11/20$228
This American Airlines deal was found by Cheapflights users on 11/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/128:04 pmDCA - STL
Nonstop2h 49mAmerican Airlines
Sat 12/146:16 amSTL - DCA
Nonstop2h 03mAmerican Airlines
Deal found 11/21$229
This CheapOair deal was found by Cheapflights users on 11/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/127:00 amDCA - STL
1 stop26h 13mFrontier
Sat 12/146:46 pmSTL - DCA
1 stop21h 13mFrontier
Deal found 11/20$238
This Delta deal was found by Cheapflights users on 11/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/106:00 amIAD - STL
1 stop4h 22mDelta
Thu 12/196:29 amSTL - IAD
1 stop4h 21mDelta
Deal found 11/19$248
This Delta deal was found by Cheapflights users on 11/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/116:00 amDCA - STL
1 stop4h 35mDelta
Mon 12/167:15 amSTL - DCA
1 stop6h 45mDelta
Deal found 11/21$248
This United Airlines deal was found by Cheapflights users on 11/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/108:20 amIAD - STL
1 stop7h 05mUnited Airlines
Thu 12/198:25 amSTL - IAD
Nonstop2h 18mUnited Airlines
Deal found 11/19$252
This United Airlines deal was found by Cheapflights users on 11/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/146:00 amDCA - STL
1 stop5h 59mUnited Airlines
Sun 12/155:40 pmSTL - DCA
1 stop4h 03mUnited Airlines
Deal found 11/20$260
This American Airlines deal was found by Cheapflights users on 11/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/135:00 amIAD - STL
1 stop4h 54mAmerican Airlines
Mon 12/166:02 pmSTL - IAD
1 stop4h 53mAmerican Airlines
Deal found 11/19$296
This Southwest deal was found by Cheapflights users on 11/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/1012:30 pmDCA - STL
Nonstop2h 20mSouthwest
Fri 12/135:40 pmSTL - DCA
1 stop3h 55mSouthwest
Deal found 11/21$305
This Southwest deal was found by Cheapflights users on 11/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/107:25 amIAD - STL
1 stop10h 30mSouthwest
Fri 12/137:45 amSTL - IAD
1 stop10h 15mSouthwest
Deal found 11/21$377

Find flights from District of Columbia to St. Louis within your budget

Customize your flight search to find flights from District of Columbia to St. Louis that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,612,795 searches. Data last updated November 21, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

Washington, D.C.St. Louis

DCA - STL

DCASTL

Washington, D.C. Reagan-National

Sat 1/4

6:00 pm-9:19 pm

1 stop28h 19m

Lambert-St Louis

Sat 1/11

6:46 pm-12:01 pm

1 stop16h 15m

$213

Washington, D.C.St. Louis

IAD - STL

IADSTL

Washington, D.C. Dulles Intl

Fri 12/6

7:19 pm-10:46 pm

1 stop28h 27m

Lambert-St Louis

Sun 12/8

5:02 pm-4:56 pm

1 stop22h 54m

$228

Washington, D.C.St. Louis

IAD - STL

IADSTL

Washington, D.C. Dulles Intl

Fri 1/17

8:50 am-10:24 am

Nonstop2h 34m

Lambert-St Louis

Sun 1/19

8:15 am-11:33 am

Nonstop2h 18m

$229

Washington, D.C.St. Louis

DCA - STL

DCASTL

Washington, D.C. Reagan-National

Thu 12/12

8:04 pm-9:53 pm

Nonstop2h 49m

Lambert-St Louis

Sat 12/14

6:16 am-9:19 am

Nonstop2h 03m

$229

Washington, D.C.St. Louis

DCA - STL

DCASTL

Washington, D.C. Reagan-National

Sun 2/16

4:05 pm-7:25 pm

1 stop4h 20m

Lambert-St Louis

Fri 2/21

8:45 am-11:40 am

Nonstop1h 55m

$239

Washington, D.C.St. Louis

DCA - STL

DCASTL

Washington, D.C. Reagan-National

Thu 1/16

6:00 am-9:36 am

1 stop4h 36m

Lambert-St Louis

Thu 1/16

2:00 pm-7:33 pm

1 stop4h 33m

$248

Washington, D.C.St. Louis

DCA - STL

DCASTL

Washington, D.C. Reagan-National

Sat 12/14

6:00 am-10:59 am

1 stop5h 59m

Lambert-St Louis

Sun 12/15

5:40 pm-10:43 pm

1 stop4h 03m

$260

Washington, D.C.St. Louis

IAD - STL

IADSTL

Washington, D.C. Dulles Intl

Thu 12/12

7:09 pm-11:43 pm

1 stop5h 34m

Lambert-St Louis

Sat 12/14

7:15 am-2:36 pm

1 stop6h 21m

$273

Washington, D.C.St. Louis

IAD - STL

IADSTL

Washington, D.C. Dulles Intl

Fri 12/13

5:00 am-8:54 am

1 stop4h 54m

Lambert-St Louis

Mon 12/16

6:02 pm-11:55 pm

1 stop4h 53m

$296

Washington, D.C.St. Louis

IAD - STL

IADSTL

Washington, D.C. Dulles Intl

Fri 12/13

6:45 am-2:40 pm

1 stop8h 55m

Lambert-St Louis

Sun 12/15

5:30 am-2:10 pm

1 stop7h 40m

$374

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/21

Showing 1-10 of 22 results
1
2
3

Best time to book a flight from District of Columbia to St. Louis

Have a flexible travel schedule? Discover the best time to fly to St. Louis from District of Columbia with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Travel insights for flights from District of Columbia to St. Louis

Get recent, data-driven insights about flights from District of Columbia to St. Louis including ideal travel times, pricing trends, and more.

What is the cheapest month to book a flight from District of Columbia to St. Louis?

Currently, September is the cheapest month in which you can book a flight from District of Columbia to St. Louis (average of $308). Flying from District of Columbia to St. Louis in March is currently the most expensive (average of $357). 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.

What is the cheapest time of day to fly from DC to STL?

Find hourly flight availability from District of Columbia 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 November 21, 2024.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from District of Columbia to St. Louis as you normally would.

Weekly flight availability from District of Columbia to St. Louis

Explore weekly flight availability from District of Columbia to St. Louis. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated November 21, 2024.

The most flights from USDC to STL are scheduled on a Monday (8 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (7 on average).

Rainfall in St. Louis by month

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

In terms of precipitation, rainfall in St. Louis ranges from 2.2 - 4.7 inches per month. May is typically the wettest month, when rainfall can reach 4.7 in. February is typically the driest time to visit St. Louis when rainfall is around 2.2 in.

Temperature in St. Louis by month

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

If weather is an important factor for your trip to St. Louis, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 32.0 F).

Reviews of airlines servicing St. Louis

Get insights into the airlines that provide service to St. Louis. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to St. Louis. Reviews last updated November 21, 2024.
See what other customers who have flown with Frontier, United Airlines and American Airlines from District of Columbia to St. Louis have to say. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.1
Very good
5,005 reviews

Food

7.2

Entertainment

7.7

Boarding

8.2

Comfort

8.1

Overall

8.1

Crew

8.7

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

Southwest
8.1
Very good
5,005 reviews
Southwest
8.1
Very good
5,005 reviews

Food

7.2

Entertainment

7.7

Boarding

8.2

Comfort

8.1

Overall

8.1

Crew

8.7

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

Delta
8.0
Very good
8,755 reviews
Southwest
8.1
Very good
5,005 reviews

Food

7.2

Entertainment

7.7

Boarding

8.2

Comfort

8.1

Overall

8.1

Crew

8.7

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

United Airlines
7.4
Good
9,172 reviews
Southwest
8.1
Very good
5,005 reviews

Food

7.2

Entertainment

7.7

Boarding

8.2

Comfort

8.1

Overall

8.1

Crew

8.7

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

WestJet
7.3
Good
2,811 reviews
Southwest
8.1
Very good
5,005 reviews

Food

7.2

Entertainment

7.7

Boarding

8.2

Comfort

8.1

Overall

8.1

Crew

8.7

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

American Airlines
7.2
Good
10,000 reviews
Southwest
8.1
Very good
5,005 reviews

Food

7.2

Entertainment

7.7

Boarding

8.2

Comfort

8.1

Overall

8.1

Crew

8.7

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

Related info for your journey

Find useful and relevant information for your journey from District of Columbia 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 District of Columbia?

    Located just 12.7 mi from the city center, Lambert-St Louis (STL) is the airport most travelers will use when flying to St. Louis from District of Columbia.

  • What are the cheapest airlines to fly from District of Columbia to St. Louis one-way?

    One-way options have recently been found by users for as low as $105 on Frontier. Other airlines that offer cheap prices include United Airlines from $115 and American Airlines from $115 one-way.

  • What are the most reliable airlines from District of Columbia to St. Louis?

    No one likes to see their flight delayed. When booking a flight from District of Columbia to St. Louis consider choosing GoJet (92%), United Airlines (92%) or Avianca (92%) as they are the most reliable in getting you off to your destination on time.

  • What are the cheapest flights from District of Columbia to St. Louis?

    Looking at all options, your cheapest flight can be booked for $114. While the most popular route (Washington, D.C. Dulles Intl - Lambert-St Louis) can be booked for $208 on average our data indicates $435 when flying from District of Columbia to St. Louis.

  • Can I find deals for flights from District of Columbia to St. Louis that include hotel bookings?

    Yes. In addition to deals on District of Columbia to St. Louis flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from District of Columbia to St. Louis?

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

  • Can I find deals for business class flights from District of Columbia to St. Louis?

    Yes. Cheapflights offers flight deals from District of Columbia 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.

  • What is the cheapest month to book a flight from District of Columbia to St. Louis?

    Currently, September is the cheapest month in which you can book a flight from District of Columbia to St. Louis (average of $308). Flying from District of Columbia to St. Louis in March is currently the most expensive (average of $357). 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.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for District of Columbia to St. Louis

See prices for flight routes from nearby airports that may be better suited for you.
Dulles Intl to Kansas City flights
Reagan-National to Kansas City flights
John F Kennedy Intl to Kansas City flights
LaGuardia to Kansas City flights
Newark to Kansas City flights
Baltimore to Kansas City flights
Newark to St. Louis flights
Dulles Intl to St. Louis flights
Boston to Kansas City flights
LaGuardia to St. Louis flights
O'Hare Intl to Kansas City flights
Los Angeles to Kansas City flights
Reagan-National to St. Louis flights
Denver to Kansas City flights
Dallas/Fort Worth to Kansas City flights
Seattle to Kansas City flights
John F Kennedy Intl to St. Louis flights
Boston to St. Louis flights
Atlanta to St. Louis flights
Atlanta to Kansas City flights
Orlando to St. Louis flights
San Francisco to St. Louis flights
Denver to St. Louis flights
San Francisco to Kansas City flights
Baltimore to St. Louis flights
Los Angeles to St. Louis flights
Dallas/Fort Worth to St. Louis flights
Seattle to St. Louis flights
Orlando to Kansas City flights
Minneapolis to Kansas City flights
Philadelphia to Kansas City flights
Hobby to Kansas City flights
Philadelphia to St. Louis flights
Ontario to Kansas City flights
Detroit to Kansas City flights
Sky Harbor Intl to St. Louis flights
Hobby to St. Louis flights
Minneapolis to St. Louis flights
George Bush Intcntl to Kansas City flights
O'Hare Intl to St. Louis flights
Detroit to St. Louis flights
Midway to Kansas City flights
Charlotte to Kansas City flights
Charlotte to St. Louis flights
Sky Harbor Intl to Kansas City flights
Cleveland to Kansas City flights
Ontario to St. Louis flights
Portland to Kansas City flights
Tampa to Kansas City flights
Salt Lake City to St. Louis flights

Top 6 airlines flying from District of Columbia to St. Louis

Discover the top 6 airlines that operate flights from District of Columbia to St. Louis. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,612,795 searches. Data last updated November 21, 2024.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$98Average$168FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$133Average$186FlexibilityNo cancel feeOn-time65%
United AirlinesCheapest$158Average$438FlexibilityNo cancel feeOn-time69%
DeltaCheapest$175Average$335FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$183Average$367FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$215Average$363FlexibilityNo cancel feeOn-time63%
100% Free
Cheapflights is completely free to use, so you can start saving the moment you arrive.
Book with Flexibility
Our users can plan ahead with confidence and find flights with no change fees
Travel Smart
Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.
View all available airlines