$60 Find Cheap Flights from Missouri to District of Columbia

1 adult
1 adult, Economy

KAYAK searches hundreds of travel sites at once for deals on flights to District of Columbia

Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 20% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Useful Info

Good to know

Low seasonFebruary
High seasonMarch
Cheapest flight$60
Best time to beat the crowds but there is an average 1% increase in price.
Most popular time to fly with an average 24% increase in price.
Flight from St. Louis to Washington Dulles Airport

FAQs for booking flights from Missouri to District of Columbia

  • How does KAYAK find such low prices on flights from Missouri to District of Columbia?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Missouri to District of Columbia.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Missouri to District of Columbia?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Missouri to District of Columbia is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Missouri to District of Columbia?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly from Missouri to District of Columbia with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Missouri to District of Columbia?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from Missouri to District of Columbia up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • Which is the cheapest airport to fly into in District of Columbia?

    Prices will differ depending on the departure airport, but generally, the cheapest airport to fly to in District of Columbia is Washington, D.C. Reagan-National Airport (DCA), with an average flight price of $185.

  • What is the cheapest day to fly to District of Columbia?

    Based on KAYAK data, the cheapest day to fly to District of Columbia is Friday where round-trip tickets can be as cheap as $364. On the other hand, the most expensive day to fly is Sunday, where round-trip prices are $489 on average.

  • What is the cheapest time of day to fly to District of Columbia?

    The cheapest time of day to fly to District of Columbia is generally at night, when round-trip flights cost $283 on average. Morning departures are around 16% more expensive than evening flights, on average. The most expensive time of day to fly to District of Columbia is generally in the afternoon, which is peak travel time and where the average cost of a ticket is $1,004.

  • What is the cheapest flight to District of Columbia?

    The cheapest ticket to District of Columbia from Missouri found in the last 72 hours was to Baltimore, at $145 round-trip. The most popular route is Kansas City (MCI) to Baltimore (BWI) and the cheapest round-trip airline ticket found on this route in the last 72 hours was $145.

  • What is the cheapest month to fly from Missouri to District of Columbia?

    The cheapest month for flights from Missouri to District of Columbia is September, when tickets cost $366 (return) on average. On the other hand, the most expensive months are June and April, when the average cost of round-trip tickets is $463 and $441 respectively.

  • How far in advance should I book a flight from Missouri to District of Columbia?

    To get a below average price on the flight from Missouri to District of Columbia, you should book around 4 weeks before departure. For the absolute cheapest price, our data suggests you should book 14 weeks before departure.

  • How long is the flight to District of Columbia?

    An average nonstop flight from Missouri to District of Columbia takes 8h 16m, covering a distance of 847 miles. The shortest route is St. Louis (STL) to Washington, D.C. Reagan-National Airport (DCA) with an average flight time of 1h 55m.

  • What is the most popular destination in District of Columbia?

    Based on KAYAK flight searches, the most popular destination is Washington, D.C. (100% of total searches to District of Columbia).

Reviews of the top 5 airlines serving from Missouri to District of Columbia

 
Need help choosing which airline to fly with from Missouri to District of Columbia? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
SouthwestOverall score based on 4278 reviews
7.0Food
8.0Comfort
7.6Entertainment
8.6Crew
8.2Boarding
Airline reviews

Delayed flight. Nicest crew member was a SW pilot flying seated next to me who kindly move to seat the final passenger. Flight extra delayed. My cup of refreshment of ginger ale was so packed with ice it was literally 2 sips.

4.0 OkayTraci, Jun 2025OAK - SEA
Read more Southwest reviews

Delayed flight. Nicest crew member was a SW pilot flying seated next to me who kindly move to seat the final passenger. Flight extra delayed. My cup of refreshment of ginger ale was so packed with ice it was literally 2 sips.

For my birthday trip this was my second time ever flying, this trip was the best.

after landing, we stay 2 hours on the taxi way before reaching the gate The airline and the crew were good though

No trays in our seats, we sat in first row, purchased a business class fare. Had to hold our drinks and snack in our hands. No plugs for our cell phones. Had to pay for it a drink cocktail each. Seats so uncomfortable.

Flight wasn’t even full, but too many carry-ons caused us to run out of bin space. New bag fee has folks who would usually check their bags carrying on. Watching Southwest morph into Spirit/Frontier is so sad to watch

Sat on tarmac for 2 hours and then missed my connecting flight

First time traveling on Southwest since bag fees were implemented. Usual good service. Just more expensive now.

Everything was on time. I was disappointed by the front section female, African American flight attendant. I did not see her name tag or would have identified by name not race. As passengers moved to the bathroom early in flight, she would say with a disdainful tone “I have to say the seat belt light is on” then go back to her book. Better trained flight attendants say something like be careful the seat belt light is on.

Cluster mess boarding. Can't wait for SWA reserved seating. Internet didn't seem to work on the plane.

Flights delayed by 4-6 hours. Boarding was a mess and unclear. Bags were not at arrival airport and had never even been put on the plane. No idea when I’ll get them. Don’t fly into Denver!

Crew was excellent. Comfort seats not as nice as other kinds of planes.

Not a "Delta" issue, but a JFK issue: We booked a connecting flight with 3 1/2 hours between to clearn immigration and customs. Our inbound flight (BCN to JFK) was on the taxiway 45 minutes which ate into our layover time. Immigtration was insanely quick with the CBP MPC app; however, clearing TSA (again, after we were ALREADY cleared in Spain on the inbound international flight) took over 95 minutes. This left us with 10 minutes before boarding the connecting flight (JFK to SAN) to walk to the far end of Terminal 4 and try to find food. We didn't find any food that could promise to serve us in under 10 minutes so we boarded the Delta flight after coming off a plance and an 8-hour flight knowing that we wouldn't be served any food on the next 5 1/2 hour flight. I feel like Delta needs to put pressure on the JFK TSA to open more screening stations (by our count, we saw only 5 scanners open and a line of - as we said - over 90 minutes. The insult is that we WERE ALREADY SCREENED through TSA, but as you come off one flight into the USA, you have to go through the whole process again. It seems like if you have a connecting flight, there should be a way to pass through immigration and customs without needing to return through TSA.

It was a great flight and the stewards and stewardess were all kind and accommodating!! The seats were comfortable and entertainment screen excellent!

There are 4 flights in consecutive gates with about the same departure time. Two flights were boarding at the same time. One was delayed or boarding would be happening at the same time. I am not sure what Delta and LAX need to do to have a better layout at the end of Terminal 2

Flight was an hour late, who knows why. It was OK, nothing outstanding.

Only not having an assigned seat was an issue. Rest was great

There was a security issue at the airport and we were unable to land. We circled endlessly and then landed at another airfield for fuel. We then circled the airport again, almost landed but didn’t fully touch down before circling again. I am thankful to the crew for keeping us safe- the issue was the airline and staff at the airport getting us seats on our connecting flights. That part was hours of searching for someone and getting in double my steps.

Boarding was organised and relaxed. Crew were fantastic! Seats were lacking padding causing butt pain and stiffness.

I like for how they process during check in. It was very smoothly.

The flight was scheduled for 2:30 PM. Early in the morning we got a text message saying the flight was delayed and rescheduled for 3:00 PM. We got to the airport with that in mind. Then we got a message during check-in at the flight was rescheduled again for 2:30 PM. We almost missed our flight. In fact, our bags Were told that they would not make it. At the end, everything worked out. But it is very stressful.

We had a very long diversion and our food voucher didn’t work because the restaurants were closed

United airlines, mediocre at best. No issues , nothing great . Worked for me

Turbulent taking off & landing to Dulles from Raleigh. Flight from Dulles to Tokyo very good!!

Very nice and clean plane. Transit time between flights was tight though

Mostly the experience was good except for the flight changes made by UA which meant longer layover in DC

Terrible. First of all we were delayed 4 3/4 hours departing Honolulu. As we had to leave our condo and the rental car had to be returned we had to go to the airport. Even though we had a business class boarding pass to Washington, since we did not have business class to Montreal we could not access the lounge without paying a $59 fee each. This does not make sense to us. Since we could not meet our original connection United booked us to Montreal via New York LaGuardia on Air Canada. In Washington a further delay got us into LaGuardia too late to make our connection to Montreal so we were booked on another Air Canada flight 3 hours later. We were originally scheduled to arrive in Montreal at 10:40 and arrived at 19:55. A totally exhausting day, United did not offer a meal voucher or any type of compensation. Air Canada did give us a digital meal voucher. The food in United business class is poor among all meals offered. The pods look nice but are not that confortable. Overall would not fly on United again.

Change cabin crew assisting business class. Not taking care, ignoring requests and calls. Never had such an experience in business class.

United left one of our bags back in SFO but that’s not my real complaint. The complaint is how it all went down. So we checked in the day before online and were told we could use the quick drop for luggage. So the next day I used baggage quick drop curbside at SFO. The agent mistakenly didn't tag my bag as he put my bag on the conveyor belt untagged. We immediately alerted him he had not tagged the bag. I walked with him to the baggage service office to find my bag and tag it. We waited outside the office for 10 mins. He came out and said everything was ok and the bag was going to be tagged and on my flight. We received a text that one of our bags was on the flight but the other was not. I alerted my first class flight attendant immediately upon boarding the flight. She was helpful and said she’d get it sorted out right away. She called over the gate agent. The gate agent used my bag number and looked over information on her device. She said my bag was on the flight. The flight attendant was standing with her, looking at the device, and also said “yep it’s on the flight”. During the flight the flight attendant made reference to how reassuring it must feel knowing the bag was on the flight. Upon arriving to IAD we received a text that my bag was not on my flight. The text said my bag would arrive to my final destination LIS 24 hrs late. I understand that mistakes happen. I was totally ok with my bag mistakenly not getting tagged at the quick drop. I was fine with walking down to baggage services to tag my bag. But, what I am not ok with is that the United staff said they fixed the mistake two different times, assuring me twice that my bag would be/was on the plane…and it wasn’t. I expected better attention by the employees, for them to do what they said they were going to do. We also spent extra money to upgrade our seats to first class, including the entire return leg from Lisbon to San Francisco because we wanted a smoother and more relaxing travel experience. Our money was not well spent. We will not be using United for travel going forward.

The flight was delayed, it took longer than anticipated because of weather, and they broke my luggage.

Horrifying! And I am almost 2 million miles with United. Late by 3 1/2 hours. Worst: after two hours on the plane waiting, they decided that one of the tires had been damaged and then decided to change it. Another hour and a half to change the tire!!!!! NO EXCUSE FOR THIS. The crew didn't even offer a glass of water until we had been on the plane for FIVE hours. This is the worst airline in the world. I'm simply stuck because they fly on the only routes I need.

Weather delay for 2.5 hours followed by half hour crew delay, did not have ginger ale, uncomfortable seats

It was nobody’s fault - but the plane came 4-hrs late and we were updated randomly in 20-30 mins increments which left us hostage to sit and wait expectantly. It was very long and got very late. Our plane didn’t land until nearly 1 am! Also the toilet wasn’t working. The hosts were nice enough but were clearly “about to pass out” as one told me. Lastly, there was no snack or even time for it. Just a bad experience overall.

The boarding crew was incredibly helpful getting me on an earlier flight

Two flight changes before the scheduled flight. On the day of the flight, the flight was delayed, which caused the connecting flight to be missed. Then, I was directed to another airport (CUN) and traveled to Tulum. American gave a $12 voucher for lunch. The least expensive item on the menu at a Mexican restaurant was $9.99. Driving to Tulum was a bad auto crash, and traffic was delayed two-plus hours. The bottom line is that we should have been at the hotel at noon, but it ended up at 11:30 PM.

Great experience. Flight boarded easily. Departed early. Smooth flight. Great arrival in DC--almost no taxing! Almost direct to gate from runway. Crew was terrific. Same cookies and beverages in main cabin. I did not use the entertainment system on this flight.

Flight delayed on both ends - have a gate ready at DCA, don't make us sit for 30min after being late to take off as well.

AA can't control the weather. But the airplane was hot and stuffy while stuck on the runway with a broken entertainment system.

Miami lounges were overcrowded and we were unable to get in. We only had a short time. But the banks are too tight in all American hubs

very bare bones flight no entertainment screen, download shows prior to boarding to watch on phone or tablet.

It was good. It’s been a long time since my wife and I fly any where and things have changed. Our trip was to see our new grandson. We fly economy and that was not good for my bad back. It was a quick flight but uncomfortable.

Very bad! No good service delayed my second connection flight

The confirmation # CK8GNW and my name was not recognized/in Frontier system. I was able to check in on Frintier app so i went to the Frontier ticket agent, at time they told me that my name/ confirmation did not show up as a purchased ticket. I had to purchase a new ticket that cost $289.00 one way.

Flight was late. Missed connecting in Denver. My new flight is more than 24 hours later and I have no room, vouchers, or compensation, and might also be bumped from the one tomorrow.

Frontier is terrible. Paid for exit row, not given exit row, refused to refund fee.

2 hour delay due to late plane, wrong size plane causing overbooking, and people getting off and on the plane after boarding was completed.

We had to wait in line over an hour just to check our bags. It's a good thing we were so early to the airport. Only one clerk was working and the line was around the corner and down the hall. No good. I felt bad for her. Not sure how she kept her sanity with all the upset people. Then we get to our gate and there is no seating. Everyone was standing. Then I realize it is not a gate at all, we still have to be shuttled to our airplane. Ugh. Then we were late taking off and missed a window of opportunity before the airport runways were shut down for some reason. (not frontier's fault the runway shut down.) The seats on the airline are crammed and there is no cushion. Never had a tighter seating arrangement while flying. My 6' 4" husband was absolutely miserable the whole time with knees digging in to the seat in front of him. You think you are getting a good deal on a ticket, and then wham! I had to pay 75 dollars for our checked bags and 75 dollars for a carry on. No other airline does that!!! And also, there is a 40 pound weight limit on checked bags... Would have been cheaper flying with another airline, and I would have at least gotten a snack and drink. Was thankful for the tiny cup of water at least.

This was one of the first frontier airline flights this spring that wasn't delayed. It actually left on time. Some of the flight crew did not look happy, they didn't smile when the passengers were boarding or getting off the plane, and the passengers initiated greetings, not the staff. To me this was an odd experience to have with any flight/airline. I had a bad experience booking this flight. The price didn't solidify until late hours into the night. Ever time I purchased the ticket, I either received a denial email or an error because the price has changed, but it was never reflected on the flyfrontier or kayak websites until way after midnight on the date of travel. This caused me anxiety and irritation with the websites. Then I noticed a mishap with my name on my voucher as I went to check in, it was incorrect. When I proceeded to correct it, Frontier had no easy, let alone free, way to remedy it. I couldn't correct my name without a $75 charge, I couldn't cancel my voucher to repurchase it with the correct name without a $100 charge, because it was too close to departure. Then calling frontier was nearly impossible to remedy the situation with a human. It's already difficult to want to choose frontier because of all the upcharges, but you feel kinda trapped into doing so because it's the more affordable airline.

They canceled flight. Hard to believe there was even a plane incoming for us to get on

The worst. We never made our connection and they did absolutely nothing to help us at the airport.

Our flight was cancelled. They could do nothing to help us get another flight that was timely. Because the first leg was cancelled we were unable to get to our connection. We had to book on an entirely different airline for today. So we spent more money, lost a day of vacation and will never fly Frontier again, so the 'we are sorry, here is $100 credit' is a joke since we won't be flying on Frontier.

Book cheap flights from Missouri to District of Columbia

Recent round-trip flight deals

8/30Sat
1 stopFrontier
6h 58mSTL-IAD
9/1Mon
1 stopFrontier
7h 46mIAD-STL
$122
7/31Thu
1 stopFrontier
8h 36mSTL-IAD
8/3Sun
1 stopFrontier
8h 24mIAD-STL
$136
8/27Wed
nonstopAmerican Airlines
2h 04mSTL-DCA
8/31Sun
nonstopAmerican Airlines
2h 11mDCA-STL
$188
10/2Thu
nonstopAmerican Airlines
2h 03mSTL-DCA
10/7Tue
nonstopAmerican Airlines
2h 28mDCA-STL
$197
8/7Thu
nonstopSouthwest
2h 20mMCI-DCA
8/11Mon
nonstopSouthwest
2h 35mDCA-MCI
$197
8/27Wed
1 stopSouthwest
5h 35mSTL-DCA
8/31Sun
nonstopSouthwest
2h 10mDCA-STL
$198
8/14Thu
1 stopUnited Airlines
6h 44mMCI-IAD
8/21Thu
nonstopUnited Airlines
2h 48mIAD-MCI
$207
8/14Thu
1 stopUnited Airlines
4h 50mMCI-IAD
8/21Thu
1 stopUnited Airlines
5h 02mIAD-MCI
$217
9/24Wed
1 stopDelta
4h 05mSTL-DCA
9/29Mon
1 stopDelta
4h 54mDCA-STL
$217
8/7Thu
1 stopDelta
5h 39mMCI-DCA
8/11Mon
1 stopDelta
5h 39mDCA-MCI
$217

Search by stops

Search by airline

Search by price

Recent one-way flight deals

9/4Thu
1 stopFrontier
7h 06mSTL-IAD
$60
7/19Sat
1 stopFrontier
7h 27mSTL-IAD
$63
8/31Sun
nonstopAmerican Airlines
2h 01mSTL-DCA
$90
10/29Wed
nonstopAmerican Airlines
2h 02mSTL-DCA
$98
9/3Wed
nonstopUnited Airlines
2h 10mSTL-IAD
$99
8/5Tue
nonstopUnited Airlines
2h 36mMCI-IAD
$99
8/21Thu
1 stopSouthwest
4h 05mSTL-DCA
$104
8/4Mon
1 stopDelta
6h 43mSTL-DCA
$109
8/6Wed
1 stopDelta
5h 39mMCI-DCA
$109
8/14Thu
2 stopsSouthwest
7h 20mSTL-DCA
$114

Search by stops

Search by airline

Search by price

Last minute flights from Missouri to District of Columbia

Last minute flight, train and bus deals

7/5Sat
multi-stopFrontier
11h 19mSTL-IAD
7/10Thu
multi-stopFrontier
8h 24mIAD-STL
$183
7/4Fri
nonstopAmerican Airlines
2h 05mSTL-DCA
7/11Fri
nonstopAmerican Airlines
2h 25mDCA-STL
$274
7/4Fri
multi-stopDelta
5h 04mSTL-DCA
7/11Fri
multi-stopDelta
6h 33mDCA-STL
$303
7/4Fri
multi-stopUnited Airlines
5h 05mSTL-IAD
7/11Fri
nonstopUnited Airlines
2h 19mIAD-STL
$354
7/5Sat
multi-stopDelta
4h 48mMCI-IAD
7/13Sun
multi-stopDelta
5h 59mIAD-MCI
$358
7/4Fri
multi-stopSouthwest
5h 30mSTL-DCA
7/11Fri
multi-stopSouthwest
5h 50mDCA-STL
$369
7/5Sat
multi-stopSouthwest
8h 55mSTL-DCA
7/12Sat
multi-stopSouthwest
9h 10mDCA-STL
$405
7/5Sat
multi-stop
12h 08mMCI-IAD
7/13Sun
multi-stop
26h 39mIAD-MCI
$527
7/5Sat
multi-stop
12h 08mMCI-IAD
7/13Sun
multi-stop
26h 39mIAD-MCI
$555
7/5Sat
nonstopUnited Airlines
2h 36mMCI-IAD
7/13Sun
multi-stopUnited Airlines
5h 40mIAD-MCI
$588

Search by stops

Search by airline

Search by price

Everything you need to know for your flight to District of Columbia

Cabin class types available on flights to Missouri

Cabin classes available on flights to Missouri. Prices are the lowest found on KAYAK over the last 7 days. Price and availability is not guaranteed.

Not what you’re looking for? Find thousands of other hotels, flights, car rentals and package deals with KAYAK.