District of Columbia

$100+ Cheap flights from St. Louis (STL) to District of Columbia

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 12/8. Fares are subject to change and may not be available on all flights or dates of travel.
STL — IAD
nov. 26 — dic. 31
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Cheap flight deals from St. Louis to District of Columbia

Discover tips and strategies to find the most affordable flight options for your journey from St. Louis (STL) to District of Columbia (USDC). 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 noviembre 21, 2024.

Find flight deals from St. Louis to District of Columbia

Cheapest flights from St. Louis to District of Columbia
Explore the most affordable flight options available from St. Louis to District of Columbia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on noviembre 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.
jue. 12/55:02 pmSTL - IAD
1 stop24h 17mFrontier
dom. 12/85:57 pmIAD - STL
1 stop6h 27mFrontier
Deal found 11/20$218
This American 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 12/166:10 amSTL - DCA
Nonstop2h 08mAmerican Airlines
lun. 12/168:04 pmDCA - STL
Nonstop2h 49mAmerican Airlines
Deal found 11/20$229
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.
lun. 12/238:25 amSTL - IAD
Nonstop2h 18mUnited Airlines
dom. 12/298:35 amIAD - STL
1 stop6h 49mUnited Airlines
Deal found 11/19$239
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.
vie. 12/205:00 amSTL - DCA
1 stop7h 19mUnited Airlines
dom. 12/296:30 amDCA - STL
1 stop5h 17mUnited Airlines
Deal found 11/20$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.
sáb. 12/147:15 amSTL - IAD
1 stop6h 21mDelta
sáb. 1/45:27 pmIAD - STL
1 stop5h 16mDelta
Deal found 11/21$248
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 12/148:30 amSTL - DCA
Nonstop1h 55mSouthwest
jue. 12/197:30 amDCA - STL
1 stop7h 30mSouthwest
Deal found 11/20$287
This American 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 12/225:58 pmSTL - IAD
1 stop5h 04mAmerican Airlines
sáb. 12/288:10 pmIAD - STL
1 stop4h 51mAmerican Airlines
Deal found 11/20$296
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.
sáb. 12/146:46 pmSTL - DCA
1 stop26h 10mFrontier
jue. 12/191:01 pmDCA - STL
1 stop20h 12mFrontier
Deal found 11/20$318
This KAYAK 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 12/47:15 amSTL - DCA
1 stop6h 45mDelta
mié. 12/47:35 pmDCA - STL
1 stop5h 06mDelta
Deal found 11/20$382
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.
sáb. 12/211:10 pmSTL - IAD
2 stops10h 55mSouthwest
mié. 1/17:25 amIAD - STL
1 stop7h 10mSouthwest
Deal found 11/21$438
This Mytrip 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 12/84:26 pmSTL - IAD
3 stops22h 44mMultiple Airlines
mié. 12/1112:55 pmIAD - STL
3 stops27h 26mMultiple Airlines
Deal found 11/19$464
This Alaska 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 12/232:23 pmSTL - DCA
1 stop25h 17mAlaska Airlines
mié. 12/259:20 amDCA - STL
2 stops15h 39mAlaska Airlines
Deal found 11/20$1,236

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

Customize your flight search to find flights from St. Louis to District of Columbia 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 noviembre 21, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

St. LouisWashington, D.C.

STL - IAD

STLIAD

Lambert-St Louis

jue. 12/5

5:02 pm-6:19 pm

1 stop24h 17m

Washington, D.C. Dulles Intl

dom. 12/8

5:57 pm-11:24 pm

1 stop6h 27m

$218

St. LouisWashington, D.C.

STL - DCA

STLDCA

Lambert-St Louis

lun. 1/27

1:05 pm-4:00 pm

Nonstop1h 55m

Washington, D.C. Reagan-National

mar. 1/28

8:00 am-9:25 am

Nonstop2h 25m

$228

St. LouisWashington, D.C.

STL - DCA

STLDCA

Lambert-St Louis

vie. 12/20

6:15 am-9:19 am

Nonstop2h 04m

Washington, D.C. Reagan-National

lun. 12/30

8:10 pm-9:45 pm

Nonstop2h 35m

$229

St. LouisWashington, D.C.

STL - IAD

STLIAD

Lambert-St Louis

jue. 1/2

8:25 am-11:43 am

Nonstop2h 18m

Washington, D.C. Dulles Intl

sáb. 1/4

6:50 pm-8:23 pm

Nonstop2h 33m

$229

St. LouisWashington, D.C.

STL - DCA

STLDCA

Lambert-St Louis

sáb. 2/15

6:53 pm-4:59 pm

1 stop21h 06m

Washington, D.C. Reagan-National

dom. 2/23

1:03 pm-9:16 am

1 stop21h 13m

$242

St. LouisWashington, D.C.

STL - DCA

STLDCA

Lambert-St Louis

jue. 2/6

5:30 pm-11:59 pm

1 stop5h 29m

Washington, D.C. Reagan-National

vie. 2/7

6:00 am-10:47 am

1 stop5h 47m

$244

St. LouisWashington, D.C.

STL - IAD

STLIAD

Lambert-St Louis

mié. 3/5

12:52 pm-9:05 pm

1 stop7h 13m

Washington, D.C. Dulles Intl

sáb. 3/15

6:05 am-9:43 am

1 stop4h 38m

$248

St. LouisWashington, D.C.

STL - DCA

STLDCA

Lambert-St Louis

vie. 1/24

5:50 pm-11:23 pm

1 stop4h 33m

Washington, D.C. Reagan-National

sáb. 1/25

6:00 am-9:54 am

1 stop4h 54m

$249

St. LouisWashington, D.C.

STL - IAD

STLIAD

Lambert-St Louis

dom. 12/22

5:58 pm-12:02 am

1 stop5h 04m

Washington, D.C. Dulles Intl

sáb. 12/28

8:10 pm-12:01 am

1 stop4h 51m

$296

St. LouisWashington, D.C.

STL - IAD

STLIAD

Lambert-St Louis

mar. 12/3

1:00 pm-11:00 pm

1 stop9h 00m

Washington, D.C. Dulles Intl

mié. 12/4

7:25 am-4:55 pm

1 stop10h 30m

$458

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/20

Showing 1-10 of 25 results
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Best time to book a flight from St. Louis to District of Columbia

Have a flexible travel schedule? Discover the best time to fly to District of Columbia from St. Louis 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 St. Louis to District of Columbia

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

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

Currently, November is the cheapest month in which you can book a flight from St. Louis to District of Columbia (average of $299). Flying from St. Louis to District of Columbia in June is currently the most expensive (average of $377). 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 STL to DC?

Find hourly flight availability from St. Louis to District of Columbia. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated noviembre 21, 2024.

When flying from St. Louis to District of Columbia, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Weekly flight availability from St. Louis to District of Columbia

Explore weekly flight availability from St. Louis to District of Columbia. 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 noviembre 21, 2024.

The most flights from STL to USDC are scheduled on a Monday (6 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (6 on average).

Rainfall in District of Columbia by month

Plan your trip to District of Columbia by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in District of Columbia ranges from 2.6 - 4.0 inches per month. May is typically the wettest month, when rainfall can reach 4.0 in. February is typically the driest time to visit District of Columbia when rainfall is around 2.6 in.

Temperature in District of Columbia by month

Plan your trip to District of Columbia by taking into account the average temperature totals by month.

If weather is an important factor for your trip to District of Columbia, 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 35.6 F).

Reviews of airlines servicing District of Columbia

Get insights into the airlines that provide service to District of Columbia. 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 District of Columbia. Reviews last updated noviembre 21, 2024.
Read reviews from past customers who have flown Frontier, United Airlines and American Airlines from St. Louis to District of Columbia. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
8.1
Very good
5,005 reviews

Boarding

8.2

Food

7.2

Comfort

8.1

Crew

8.7

Overall

8.1

Entertainment

7.7

Reviews

1 / 10

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

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

Boarding

8.2

Food

7.2

Comfort

8.1

Crew

8.7

Overall

8.1

Entertainment

7.7

Reviews

1 / 10

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

8.0
Very good
9,464 reviews
8.1
Very good
5,005 reviews

Boarding

8.2

Food

7.2

Comfort

8.1

Crew

8.7

Overall

8.1

Entertainment

7.7

Reviews

1 / 10

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

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

Boarding

8.2

Food

7.2

Comfort

8.1

Crew

8.7

Overall

8.1

Entertainment

7.7

Reviews

1 / 10

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

7.4
Good
9,172 reviews
8.1
Very good
5,005 reviews

Boarding

8.2

Food

7.2

Comfort

8.1

Crew

8.7

Overall

8.1

Entertainment

7.7

Reviews

1 / 10

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

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

Boarding

8.2

Food

7.2

Comfort

8.1

Crew

8.7

Overall

8.1

Entertainment

7.7

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 St. Louis to District of Columbia. 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 from for flights from St. Louis to District of Columbia?

    If you book a flight to District of Columbia from St. Louis, you will be flying from Lambert-St Louis, which is the city’s only airport. Lambert-St Louis (STL) is located 12.7 mi from the center of St. Louis.

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

    The cheapest airlines for a one-way flight from St. Louis to District of Columbia are Frontier ($100), American Airlines ($115), and United Airlines ($115).

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

    Consider Avianca (93%), Copa Airlines (93%) or Lufthansa (92%) when booking your flight. These represent the most reliable airlines when flying from St. Louis to District of Columbia.

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

    Looking for the cheapest flight from St. Louis to District of Columbia? While on average our users pay $1,072, our data indicates the cheapest price to be $141. The most popular route (Lambert-St Louis - Washington, D.C. Dulles Intl), is priced around $229.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from St. Louis to District of Columbia 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 St. Louis to District of Columbia?

    Currently, November is the cheapest month in which you can book a flight from St. Louis to District of Columbia (average of $299). Flying from St. Louis to District of Columbia in June is currently the most expensive (average of $377). 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

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Alternative routes for St. Louis to District of Columbia

See prices for flight routes from nearby airports that may be better suited for you.

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

Discover the top 6 airlines that operate flights from St. Louis to District of Columbia. 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 noviembre 21, 2024.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$98Average$180FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$129Average$318FlexibilityNo cancel feeOn-time71%
Spirit AirlinesCheapest$158Average$231FlexibilityNo cancel feeOn-time65%
DeltaCheapest$177Average$312FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$185Average$367FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$190Average$336FlexibilityNo cancel feeOn-time63%
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