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$110+ Cheap flights from St. Louis (STL) to Reagan-National (DCA)

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 8/23. Fares are subject to change and may not be available on all flights or dates of travel.
STL — DCA
Jul 30 — Aug 61
From?
To?
Tue 7/30
Tue 8/6
1 adult, Economy
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The best prices from Lambert-St Louis to Washington, D.C. Reagan-National are usually found in February or August, booked 68 days in advance, depart on a Saturday or Wednesday and return on a Tuesday

Cheap flight deals from St. Louis to Reagan-National

Discover tips and strategies to find the most affordable flight options for your journey from St. Louis (STL) to Reagan-National (DCA). 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 July 25, 2024.

Popular in

September

Cheapest in

February

Round-trip from

$148
(mytrip.com)

One-way from

$110
(American Airlines)
High demand for flights, 14% potential price rise
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Best time to find cheap flights, 13% potential price drop
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From Lambert-St Louis to Washington, D.C. Reagan-National
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One-way flight from Lambert-St Louis to Washington, D.C. Reagan-National
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What is the cheapest day to fly round-trip from St. Louis to Washington, D.C. Reagan-National Airport?

Users have found that leaving on a Friday can be a cost-effective option. It’s possible to save up to 53% on your flight compared to booking on days when demand is much higher.

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

Travelers have found it’s best to book a flight 53 days in advance to save up to 87% compared to booking the same week of travel. As your travel date approaches, the cost of this flight route may potentially increase. While opting to book 53 days out may not be an option for all, there are still additional ways to secure a deal in the near future. You might find a flight from St. Louis to Washington, D.C. Reagan-National Airport 1-2 weeks in advance for as low as $298, or $502 for flights within the next 24 hours.

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

January can be a great time to fly to Washington, D.C. Reagan-National Airport from St. Louis with a flight ticket averaging about $268. Cheapflights users have found deals in the month of January for as cheap as $108. The most expensive prices can be found in the month of June.

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

It’s optimal to fly from St. Louis to Washington, D.C. Reagan-National Airport in the evening. By choosing this option you can save up to 55% on the cost of your flight, compared to a flight in the afternoon.

Cheap St. Louis to Reagan-National flights in July & August 2024

Find cheap flight options from St. Louis to Reagan-National specifically for the months of July and August 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 2,752,877 searches. Prices were last updated on July 25, 2024.
Check out some of the best flight deals from St. Louis to Washington, D.C. in 2024. Check back in a little while for more flight options.
This mytrip.com deal was found by Cheapflights users on 7/25. 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.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/317:48 pmSTL - DCA
1 stop15h 19mFrontier
Tue 9/36:59 pmDCA - STL
1 stop24h 49mFrontier
Deal found 7/25$148
This mytrip.com deal was found by Cheapflights users on 7/23. 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.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/137:48 pmSTL - DCA
1 stop25h 07mFrontier
Mon 8/266:59 pmDCA - STL
1 stop24h 49mFrontier
Deal found 7/23$149
This mytrip.com deal was found by Cheapflights users on 7/24. 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.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/217:48 pmSTL - DCA
1 stop15h 21mFrontier
Tue 8/276:59 pmDCA - STL
1 stop24h 49mFrontier
Deal found 7/24$151
This mytrip.com deal was found by Cheapflights users on 7/24. 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.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/227:48 pmSTL - DCA
1 stop21h 21mFrontier
Wed 8/287:00 amDCA - STL
1 stop12h 48mFrontier
Deal found 7/24$152
This Frontier deal was found by Cheapflights users on 7/24. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/199:24 pmSTL - DCA
1 stop13h 45mFrontier
Thu 8/227:00 amDCA - STL
1 stop12h 48mFrontier
Deal found 7/24$153
This mytrip.com deal was found by Cheapflights users on 7/23. 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.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/207:48 pmSTL - DCA
1 stop15h 21mFrontier
Wed 8/216:59 pmDCA - STL
1 stop24h 49mFrontier
Deal found 7/23$155
This mytrip.com deal was found by Cheapflights users on 7/24. 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.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/187:48 pmSTL - DCA
1 stop15h 21mFrontier
Sat 8/246:59 pmDCA - STL
1 stop24h 49mFrontier
Deal found 7/24$156
This mytrip.com deal was found by Cheapflights users on 7/25. 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.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/237:48 pmSTL - DCA
1 stop15h 21mFrontier
Mon 8/267:00 amDCA - STL
1 stop14h 24mFrontier
Deal found 7/25$159
This mytrip.com deal was found by Cheapflights users on 7/23. 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.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/167:48 pmSTL - DCA
1 stop15h 21mFrontier
Mon 8/1912:59 pmDCA - STL
1 stop8h 25mFrontier
Deal found 7/23$162

St. Louis to Reagan-National 2024 flight deals

Discover exclusive flight deals for travel between St. Louis and Reagan-National in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 2,752,877 searches. Data last updated July 25, 2024.
Check out some of the best flight deals from St. Louis to Washington, D.C. in 2024. Check back in a little while for more flight options.
This mytrip.com deal was found by Cheapflights users on 7/25. 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.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/317:48 pmSTL - DCA
1 stop15h 19mFrontier
Tue 9/36:59 pmDCA - STL
1 stop24h 49mFrontier
Deal found 7/25$148
This mytrip.com deal was found by Cheapflights users on 7/23. 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.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/137:48 pmSTL - DCA
1 stop25h 07mFrontier
Mon 8/266:59 pmDCA - STL
1 stop24h 49mFrontier
Deal found 7/23$149
This mytrip.com deal was found by Cheapflights users on 7/24. 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.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/217:48 pmSTL - DCA
1 stop15h 21mFrontier
Tue 8/276:59 pmDCA - STL
1 stop24h 49mFrontier
Deal found 7/24$151
This mytrip.com deal was found by Cheapflights users on 7/24. 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.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/227:48 pmSTL - DCA
1 stop21h 21mFrontier
Wed 8/287:00 amDCA - STL
1 stop12h 48mFrontier
Deal found 7/24$152
This Frontier deal was found by Cheapflights users on 7/24. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/199:24 pmSTL - DCA
1 stop13h 45mFrontier
Thu 8/227:00 amDCA - STL
1 stop12h 48mFrontier
Deal found 7/24$153
This mytrip.com deal was found by Cheapflights users on 7/23. 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.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/207:48 pmSTL - DCA
1 stop15h 21mFrontier
Wed 8/216:59 pmDCA - STL
1 stop24h 49mFrontier
Deal found 7/23$155
This mytrip.com deal was found by Cheapflights users on 7/24. 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.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/187:48 pmSTL - DCA
1 stop15h 21mFrontier
Sat 8/246:59 pmDCA - STL
1 stop24h 49mFrontier
Deal found 7/24$156
This CheapOair deal was found by Cheapflights users on 7/25. 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.
Wed 9/115:20 pmSTL - DCA
1 stop23h 49mFrontier
Mon 9/166:59 pmDCA - STL
1 stop29h 20mFrontier
Deal found 7/25$158
This mytrip.com deal was found by Cheapflights users on 7/25. 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.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/237:48 pmSTL - DCA
1 stop15h 21mFrontier
Mon 8/267:00 amDCA - STL
1 stop14h 24mFrontier
Deal found 7/25$159

St. Louis to Reagan-National flights leaving soon

Find last-minute flight options from St. Louis to Reagan-National for spontaneous travel. Discover available flights and compare prices based on user searches. Secure great deals and offers for spontaneous trips with quick booking options. Over the last 7 days, Cheapflights users made 2,752,877 searches. Data last updated July 25, 2024.
Have a look at some of the flights available from St. Louis to Washington, D.C. departing last-minute. Users should double check the flight they book to ensure it matches the day, time, and destination they're looking for.
This CheapOair deal was found by Cheapflights users on 7/25. 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 8/18:57 pmSTL - DCA
1 stop23h 58mFrontier
Tue 8/136:59 pmDCA - STL
1 stop24h 49mFrontier
Deal found 7/25$244
This CheapOair deal was found by Cheapflights users on 7/24. 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 8/18:57 pmSTL - DCA
1 stop14h 12mFrontier
Tue 8/137:00 amDCA - STL
1 stop12h 48mFrontier
Deal found 7/24$258
This mytrip.com deal was found by Cheapflights users on 7/23. 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.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/37:51 pmSTL - DCA
1 stop15h 18mFrontier
Wed 8/76:59 pmDCA - STL
1 stop28h 01mFrontier
Deal found 7/23$280
This Gotogate deal was found by Cheapflights users on 7/24. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/37:51 pmSTL - DCA
1 stop15h 18mFrontier
Tue 8/612:59 pmDCA - STL
1 stop9h 59mFrontier
Deal found 7/24$283
This Gotogate deal was found by Cheapflights users on 7/24. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/37:51 pmSTL - DCA
1 stop15h 18mFrontier
Wed 8/76:59 pmDCA - STL
1 stop28h 01mFrontier
Deal found 7/24$288
This Gotogate deal was found by Cheapflights users on 7/24. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/37:51 pmSTL - DCA
1 stop15h 18mFrontier
Thu 8/87:00 amDCA - STL
1 stop16h 00mFrontier
Deal found 7/24$289
This Gotogate deal was found by Cheapflights users on 7/24. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/37:51 pmSTL - DCA
1 stop15h 18mFrontier
Sat 8/106:59 pmDCA - STL
1 stop18h 09mFrontier
Deal found 7/24$290
This American Airlines deal was found by Cheapflights users on 7/24. 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.
Tue 7/309:09 amSTL - DCA
1 stop6h 47mAmerican Airlines
Tue 7/308:00 pmDCA - STL
Nonstop2h 29mAmerican Airlines
Deal found 7/24$295
This mytrip.com deal was found by Cheapflights users on 7/25. 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.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/18:57 pmSTL - DCA
1 stop23h 58mFrontier
Mon 8/56:59 pmDCA - STL
1 stop27h 59mFrontier
Deal found 7/25$296

One-way flights to Reagan-National from St. Louis

Search for one-way flight options from St. Louis to Reagan-National. Find affordable one-way fares based on user searches. Compare prices and availability to plan your one-way journey according to your preferred dates and budget. Over the last 7 days, Cheapflights users made 2,752,877 searches. Data last updated July 25, 2024.
If you're seeking multiple options on one-way flights from St. Louis to Washington, D.C., be sure to check out these deals, which are updated often. For those needing a return trip from St. Louis, there is a search form available above.
This American Airlines deal was found by Cheapflights users on 7/25. 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 8/236:12 amSTL - DCA
Nonstop1h 59mAmerican Airlines
Deal found 7/25$110
This mytrip.com deal was found by Cheapflights users on 7/24. 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.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/37:51 pmSTL - DCA
1 stop15h 18mFrontier
Deal found 7/24$113
This Delta deal was found by Cheapflights users on 7/25. 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 8/2711:29 amSTL - DCA
1 stop4h 30mDelta
Deal found 7/25$119
This mytrip.com deal was found by Cheapflights users on 7/24. 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.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/318:02 pmSTL - DCA
1 stop15h 07mFrontier
Deal found 7/24$126
This mytrip.com deal was found by Cheapflights users on 7/24. 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.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/78:02 pmSTL - DCA
1 stop21h 07mFrontier
Deal found 7/24$127
This American Airlines deal was found by Cheapflights users on 7/25. 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.
Mon 10/146:04 amSTL - DCA
Nonstop2h 05mAmerican Airlines
Deal found 7/25$129
This American Airlines deal was found by Cheapflights users on 7/23. 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.
Sun 8/255:30 amSTL - DCA
1 stop4h 30mAmerican Airlines
Deal found 7/23$143
This CheapOair deal was found by Cheapflights users on 7/25. 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 8/25:19 pmSTL - DCA
1 stop23h 50mFrontier
Deal found 7/25$145
This CheapOair deal was found by Cheapflights users on 7/25. 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.
Mon 8/57:51 pmSTL - DCA
1 stop15h 18mFrontier
Deal found 7/25$165

Find flights from St. Louis to Reagan-National within your budget

Customize your flight search to find flights from St. Louis to Reagan-National 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 2,752,877 searches. Data last updated July 25, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$148 - $399

Route

Depart

Return

Price

Lambert-St LouisWashington, D.C. Reagan-National

STL - DCA

STLDCA

Lambert-St Louis

Sat 8/31

1 stop15h 19m

Washington, D.C. Reagan-National

Tue 9/3

1 stop24h 49m

$148

Lambert-St LouisWashington, D.C. Reagan-National

STL - DCA

STLDCA

Lambert-St Louis

Tue 8/13

1 stop25h 07m

Washington, D.C. Reagan-National

Mon 8/26

1 stop24h 49m

$149

Lambert-St LouisWashington, D.C. Reagan-National

STL - DCA

STLDCA

Lambert-St Louis

Wed 8/21

1 stop15h 21m

Washington, D.C. Reagan-National

Tue 8/27

1 stop24h 49m

$151

Lambert-St LouisWashington, D.C. Reagan-National

STL - DCA

STLDCA

Lambert-St Louis

Thu 8/22

1 stop21h 21m

Washington, D.C. Reagan-National

Wed 8/28

1 stop12h 48m

$152

Lambert-St LouisWashington, D.C. Reagan-National

STL - DCA

STLDCA

Lambert-St Louis

Mon 8/19

1 stop13h 45m

Washington, D.C. Reagan-National

Thu 8/22

1 stop12h 48m

$153

Lambert-St LouisWashington, D.C. Reagan-National

STL - DCA

STLDCA

Lambert-St Louis

Fri 8/23

Nonstop1h 59m

Washington, D.C. Reagan-National

Mon 8/26

Nonstop2h 21m

$219

Lambert-St LouisWashington, D.C. Reagan-National

STL - DCA

STLDCA

Lambert-St Louis

Fri 8/23

1 stop4h 30m

Washington, D.C. Reagan-National

Thu 8/29

1 stop3h 47m

$238

Lambert-St LouisWashington, D.C. Reagan-National

STL - DCA

STLDCA

Lambert-St Louis

Mon 8/12

Nonstop2h 00m

Washington, D.C. Reagan-National

Wed 8/14

Nonstop2h 15m

$288

Lambert-St LouisWashington, D.C. Reagan-National

STL - DCA

STLDCA

Lambert-St Louis

Sat 8/31

1 stop6h 32m

Washington, D.C. Reagan-National

Tue 9/3

2 stops11h 31m

$399

Flights are sorted by cheapest first

Deals found on 7/25

How far ahead should I book a flight from St. Louis to Washington, D.C. Reagan-National Airport?

Use this chart to determine the optimal time to book a round-trip flight from St. Louis to Reagan-National. Price data was last updated on July 23, 2024.
The best time to book flights from St. Louis to Washington, D.C. Reagan-National Airport is 68 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.
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What is the cheapest day to fly from St. Louis to Washington, D.C. Reagan-National Airport?

Use this chart to determine the cheapest time to fly round-trip from St. Louis to Reagan-National. Price data was last updated on July 21, 2024.
Morning
Noon
Afternoon
Evening
All times are departure.
Travelers seeking maximum savings on their St. Louis to Washington, D.C. Reagan-National Airport flight should consider departing on Saturday afternoons when fares are most often at their lowest. Sunday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.
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Best time to book a flight from St. Louis to Reagan-National

Have a flexible travel schedule? Discover the best time to fly to Reagan-National 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.

Temperature and rainfall in Reagan-National by month

Plan your trip to Reagan-National by taking into account the average temperature and rainfall totals by month.

WAS

Temperature

35.6 - 80.6 °F

If weather is an important factor for your trip to Washington, D.C. Reagan-National Airport, 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 Reagan-National

Get insights into the airlines that provide service to Reagan-National. 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 Reagan-National. Reviews last updated July 25, 2024.
See what other customers who have flown with Frontier, American Airlines and United Airlines from St. Louis to Washington, D.C. have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.2
Very good
5,641 reviews

Entertainment

7.8

Comfort

8.1

Food

7.3

Boarding

8.3

Overall

8.2

Crew

8.7

Reviews

1 / 10

Wish the there were an electrical outlet to plug the phone. it died within 10 minutes of being in the air.

Southwest
8.2
Very good
5,641 reviews
Southwest
8.2
Very good
5,641 reviews

Entertainment

7.8

Comfort

8.1

Food

7.3

Boarding

8.3

Overall

8.2

Crew

8.7

Reviews

1 / 10

Wish the there were an electrical outlet to plug the phone. it died within 10 minutes of being in the air.

Delta
8.0
Very good
9,630 reviews
Southwest
8.2
Very good
5,641 reviews

Entertainment

7.8

Comfort

8.1

Food

7.3

Boarding

8.3

Overall

8.2

Crew

8.7

Reviews

1 / 10

Wish the there were an electrical outlet to plug the phone. it died within 10 minutes of being in the air.

United Airlines
7.4
Good
10,000 reviews
Southwest
8.2
Very good
5,641 reviews

Entertainment

7.8

Comfort

8.1

Food

7.3

Boarding

8.3

Overall

8.2

Crew

8.7

Reviews

1 / 10

Wish the there were an electrical outlet to plug the phone. it died within 10 minutes of being in the air.

American Airlines
7.3
Good
10,000 reviews
Southwest
8.2
Very good
5,641 reviews

Entertainment

7.8

Comfort

8.1

Food

7.3

Boarding

8.3

Overall

8.2

Crew

8.7

Reviews

1 / 10

Wish the there were an electrical outlet to plug the phone. it died within 10 minutes of being in the air.

Frontier
6.2
Okay
3,835 reviews
Southwest
8.2
Very good
5,641 reviews

Entertainment

7.8

Comfort

8.1

Food

7.3

Boarding

8.3

Overall

8.2

Crew

8.7

Reviews

1 / 10

Wish the there were an electrical outlet to plug the phone. it died within 10 minutes of being in the air.

Related info for your journey

Find useful and relevant information for your journey from St. Louis to Reagan-National. 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 Washington, D.C. Reagan-National?

    Most people fly from Lambert-St Louis (STL) if they book a flight from St. Louis to Washington, D.C. Reagan-National. On average, Lambert-St Louis has 6 outbound flights to Washington, D.C. Reagan-National per day from 4 airlines. Lambert-St Louis is conveniently located just 12.7 mi from St. Louis’s city center.

  • Can I find flights from St. Louis to Washington, D.C. Reagan-National Airport for under $200 on Cheapflights?

    Yes, there are multiple flights from St. Louis to Washington, D.C. Reagan-National Airport for under $200. The cheapest flight booked recently is on Frontier for just $148, but on average you can expect to pay $174.

  • Are there nonstop flights from St. Louis to Washington, D.C. Reagan-National Airport for under $300 on Cheapflights?

    Cheapflights has at least 20 direct flights from St. Louis to Washington, D.C. Reagan-National Airport under $300. A good price for a nonstop flight from St. Louis to Washington, D.C. Reagan-National Airport is less than $346.

  • Are there last-minute flights available from St. Louis to Washington, D.C. Reagan-National Airport for under $300?

    There are currently 20+ open flights from St. Louis to Washington, D.C. Reagan-National Airport within the next 7 days for less than $300.

  • What days are nonstop flights available from St. Louis to Washington, D.C. Reagan-National Airport?

    Nonstop flights are available for this route on the following days: Thursday.

  • How many flights depart from St. Louis to Washington, D.C. Reagan-National Airport on average per day?

    1 flight departure from St. Louis to Washington, D.C. Reagan-National Airport per day on average.
    Early Morning (Midnight to 6am) - 100% of flight departures

  • How long is the flight from St. Louis to Washington, D.C. Reagan-National Airport?

    Airlines like Frontier, American Airlines, and Delta fly from St. Louis to Washington, D.C. Reagan-National Airport in about 1h 59m. The time it takes to get you to your destination can typically vary by up to 13h 20m. The distance from St. Louis to Washington, D.C. Reagan-National Airport is about 721 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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

    According to our current data, Frontier ($148), American Airlines ($219), and Delta ($238) offers the cheapest pricing from St. Louis to Washington, D.C. Reagan-National Airport. Frontier is priced at 49% lower than the current average price of a flight leaving 3 months from now.

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

    $110 is the cheapest one-way deal found within the past few days, from American Airlines. You may also be able to find cheap deals on Frontier and Delta, with prices starting from $113 and $119, respectively.

  • What are the most reliable airlines from St. Louis to Washington, D.C. Reagan-National Airport?

    Before booking your flight to Washington, D.C. Reagan-National Airport from St. Louis, check out the most reliable airlines to get you to your destination on time: Sun Country Air (100%), Republic Airways (94%), PSA Airlines( 86%).

  • What are the cheapest flights from St. Louis to Washington, D.C. Reagan-National Airport?

    While on average a flight from St. Louis to Washington, D.C. Reagan-National Airport is generally $279, our data shows the cheapest flight currently is $102. When looking at the most popular route, (Lambert-St Louis - Washington, D.C. Reagan-National), you can expect to pay $199 for that flight.

  • What does STL to DCA mean?

    Lambert-St Louis Airport is STL and Washington, D.C. Reagan-National Airport is DCA. These codes are created by the International Air Transport Association (IATA) and airlines use them to identify the departing and arrival airports in the flight routes they service.

  • Can I find deals for flights from St. Louis to Reagan-National that include extra baggage allowance?

    The amount of baggage you can bring on your St. Louis to Reagan-National 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.

  • Can I find deals on flights from St. Louis to Reagan-National with specific airlines?

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

  • Can I find deals for flights from St. Louis to Reagan-National that include hotel bookings?

    Yes. In addition to deals on St. Louis to Reagan-National flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from St. Louis to Reagan-National?

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

  • Can I find deals for business class flights from St. Louis to Reagan-National?

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

  • Can I find deals for flights from St. Louis to Reagan-National that allow pets onboard?

    Many airlines flying from St. Louis to Reagan-National 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.

  • Can I find deals on last-minute flights from St. Louis to Reagan-National?

    Yes, you can often find last-minute deals on St. Louis to Reagan-National 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.

  • How recently were the St. Louis to Washington, D.C. Reagan-National Airport flight deals updated?

    The St. Louis to Washington, D.C. Reagan-National Airport flight deals you see on this page were last updated on 7/25.

  • What are the most popular airlines that fly from St. Louis to Washington, D.C. Reagan-National Airport?

    The most popular airlines flying from St. Louis to Washington, D.C. Reagan-National Airport are American Airlines, Delta and Frontier. Something to consider prior to booking your flight.

  • What is the cheapest month to book a flight from St. Louis to Washington, D.C. Reagan-National Airport?

    Currently, January is the cheapest month in which you can book a flight from St. Louis to Washington, D.C. Reagan-National Airport (average of $261). Flying from St. Louis to Washington, D.C. Reagan-National Airport in June is currently the most expensive (average of $339). 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 Reagan-National
See prices for flight routes from nearby airports that may be better suited for you.

Kansas City to Dulles Intl flights
Kansas City to Reagan-National flights
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Fort Leonard Wood to Reagan-National flights

Top 4 airlines flying from St. Louis to Reagan-National

Discover the top 4 airlines that operate flights from St. Louis to Reagan-National. 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 2,752,877 searches. Data last updated July 25, 2024.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$107Average$166FlexibilityNo cancel feeOn-time62%
DeltaCheapest$163Average$252FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$187Average$283FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$216Average$337FlexibilityNo cancel feeOn-time69%
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Search flights from St. Louis to Reagan-National by cabin class

Find flights from St. Louis to Reagan-National, based on your preferred cabin class, be it economy, premium economy, business, or first class.
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Hourly flight availability from St. Louis to Reagan-National

Find hourly flight availability from St. Louis to Reagan-National. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 25, 2024.
5%of flight departuresEarly morningMidnight to 6 am
49%of flight departuresMorning6 am to noon
36%of flight departuresAfternoonNoon to 6 pm
10%of flight departuresEvening6 pm to midnight
Midnight
6 AM
Noon
6 PM

Weekly flight availability from St. Louis to Reagan-National

Explore weekly flight availability from St. Louis to Reagan-National. 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 July 25, 2024.
Sunday5daily flights
Monday7daily flights
Tuesday7daily flights
Wednesday7daily flights
Thursday7daily flights
Friday7daily flights
Saturday6daily flights

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