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STL - WAS

$45 Find cheap flights from St. Louis to Washington, D.C.

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from St. Louis to Washington, D.C. departing on 6/4. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
0 bags
Thu 6/6
Thu 6/13

Search hundreds of travel sites at once for deals on flights to Washington, D.C.

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from St. Louis to Washington, D.C., as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from St. Louis to Washington, D.C., as well as popular online travel agencies
In the last 7 days travelers have searched 43,707,506 times on KAYAK, and here is why:

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

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

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Cheap flight deals from St. Louis to Washington, D.C. (STL-WAS)

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from St. Louis to Washington, D.C. that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices and deals for you by selecting your travel dates.
Choose your dates
2:35 pm - 12:16 amSTL-BWI
8h 41m1 stop
5:45 am - 10:57 amBWI-STL
6h 12m1 stop
$122Spirit Airlines
Find Deal
Tue, Jun 4 - Tue, Jun 11
11:39 am - 12:51 amSTL-BWI
12h 12m1 stop
6:14 am - 1:37 pmBWI-STL
8h 23m1 stop
$127Spirit Airlines
Find Deal
Sat, May 18 - Tue, May 21
8:45 pm - 5:46 pmSTL-BWI
20h 01m1 stop
8:38 am - 7:08 amBWI-STL
23h 30m1 stop
$133Frontier
Find Deal
Fri, May 17 - Mon, May 20
7:44 pm - 8:30 amSTL-BWI
11h 46m1 stop
8:38 am - 7:08 amBWI-STL
23h 30m1 stop
$134Frontier
Find Deal
Fri, May 17 - Mon, May 20
6:16 am - 9:15 amSTL-DCA
1h 59mnonstop
8:00 pm - 9:28 pmDCA-STL
2h 28mnonstop
$184American Airlines
Find Deal
Tue, Jun 4 - Tue, Jun 11
1:10 pm - 8:56 pmSTL-DCA
6h 46m1 stop
2:45 pm - 8:29 pmDCA-STL
6h 44m1 stop
$188Delta
Find Deal
Mon, Jul 1 - Fri, Jul 5
6:30 pm - 11:55 pmSTL-IAD
4h 25m1 stop
6:00 am - 9:05 amIAD-STL
4h 05m1 stop
$188Delta
Find Deal
Wed, May 29 - Sat, Jun 1
6:28 pm - 9:30 pmSTL-DCA
2h 02mnonstop
7:45 am - 9:14 amDCA-STL
2h 29mnonstop
$189American Airlines
Find Deal
Fri, Sep 6 - Sun, Sep 8
5:20 pm - 12:15 amSTL-IAD
5h 55m1 stop
8:25 am - 12:22 pmIAD-STL
4h 57m1 stop
$217United Airlines
Find Deal
Fri, Aug 30 - Sun, Sep 1
8:25 am - 11:35 amSTL-IAD
2h 10mnonstop
6:30 am - 10:25 amIAD-STL
4h 55m1 stop
$226United Airlines
Find Deal
Sat, Aug 10 - Sun, Aug 18

Flights from St. Louis to Washington, D.C. - Travel Insights & Trends

Get data-powered insights and trends into flights from St. Louis to Washington, D.C. to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest St. Louis to Washington, D.C. flight route?

The cheapest price for flight routes found by users searching on KAYAK in the last 2 weeks for one-way flights from St. Louis to Washington, D.C..
Our data shows that the cheapest route for a one-way flight from St. Louis to Washington, D.C. cost $79 and was between St. Louis and Washington, D.C. Reagan-National Airport. On average, the best prices are found if you fly from St. Louis to Baltimore. The average price for a return flight for this route is $198.

What’s the cheapest day of the week to fly from St. Louis to Washington, D.C.?

The average price of all flights from St. Louis to Washington, D.C. clicked on KAYAK for each day over the last 12 months.
If your flying dates are flexible, you should consider flying to Washington, D.C. on a Wednesday, as we generally find the cheapest rates on that day for this route. On the other hand, Sunday is the most expensive day to fly from St. Louis to Washington, D.C.. For your return ticket, we recommend flying on a Saturday and avoiding Mondays for the best deals.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from St. Louis to Washington, D.C., removes the top 0.1% to account for outliers, and then takes the median of all values for each month.
The cheapest month for flights from St. Louis to Washington, D.C. is January, where tickets cost $208 on average. On the other hand, the most expensive months are June and July, where the average cost of tickets is $338 and $302 respectively.

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

To calculate daily average prices, KAYAK takes all prices for each day before departure over the last year for flights from St. Louis to Washington, D.C., removes the top 0.1% to account for outliers, and then takes the average of all the values for each month.
To get a below average price on the flight from St. Louis to Washington, D.C., you should book around 2 weeks before departure. For the absolute cheapest price, our data suggests you should book 62 days before departure.

Which airlines provide the cheapest flights from St. Louis to Washington, D.C.?

The cheapest price for the route for each airline clicked by KAYAK users in the last 72 hours.
In the last 72 hours, the best return deals on flights connecting St. Louis to Washington, D.C. were found on Spirit Airlines ($122) and Frontier ($133). Spirit Airlines proposed the cheapest one-way flight at $45.

Which airlines fly most frequently between St. Louis and Washington, D.C.?

Southwest connects St. Louis to Washington, D.C. up to 13 flights per day, followed by American Airlines (5 flights per day), and United Airlines (2 flights per day).

Which airlines fly non-stop between St. Louis and Washington, D.C.?

Airline and price data is aggregated from results in KAYAK’s search results from the last 2 weeks for flights from St. Louis to Washington, D.C..
There are 3 airlines that fly nonstop from St. Louis to Washington, D.C.. They are: American Airlines, Southwest and United Airlines. The cheapest price of all airlines flying this route was found with American Airlines at $191 for a one-way flight. On average, the best prices for this route can be found at American Airlines.

How many flights are there between St. Louis and Washington, D.C. per day?

Each day, there are between 10 and 24 nonstop flights that take off from St. Louis and land in Washington, D.C., with an average flight time of 2h 02m. The most common departure time is 8:00 am and most flights take off in the morning, while the most flights land at Washington, D.C. Reagan-National Airport. Each week, there are 146 flights. The most frequent day of departure is Thursday, when 16% of all weekly flights depart. The fewest flights depart on a Saturday.

Which cabin class options are there for flights between St. Louis and Washington, D.C.?

The average price of flights for each cabin class for the route found by users searching on KAYAK over the last 2 weeks.
There are 4 cabin class options for the route. These are First, Business, Economy and Prem Economy. Perform a search on KAYAK to find the latest prices and availability for all cabin fares, which differ across airlines.

How long does a flight from St. Louis to Washington, D.C. take?

The average nonstop flight takes 1h 56m, covering a distance of 717 miles.

What’s the earliest departure time from St. Louis to Washington, D.C.?

Early birds can take the earliest flight from St. Louis at 5:15 am and will be landing in Washington, D.C. at 8:15 am.

What’s the latest departure time from St. Louis to Washington, D.C.?

If you prefer to fly at night, the latest flight from St. Louis to Washington, D.C. jets off at 8:55 pm and lands at 11:55 pm.

Good to know

Low season

February

High season

March

Cheapest flight

$45
Best time to beat the crowds with an average 10% drop in price.
Most popular time to fly and prices are also 0% lower on average.
Flight from St. Louis to Baltimore

When to book flights from St. Louis to Washington, D.C.

Are your dates flexible? Find out the best times to travel from St. Louis to Washington, D.C. based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from St. Louis to Washington, D.C.

  • What is the cheapest flight from St. Louis to Washington, D.C.?

    In the last 3 days, the lowest price for a flight from St. Louis to Washington, D.C. was $45 for a one-way ticket and $122 for a round-trip.

  • Do I need a passport to fly between St. Louis and Washington, D.C.?

    No

  • Which airports will I be using when flying from St. Louis to Washington, D.C.?

    On your way to Washington, D.C., you’ll fly out from Lambert-St Louis. You’ll be landing in one of Washington, D.C.’s 2 airports: Washington, D.C. Reagan-National or Washington, D.C. Dulles Intl.

  • Which airlines offer Wi-Fi service onboard planes from St. Louis to Washington, D.C.?

    All the following airlines offer inflight Wi-Fi service on the St. Louis to Washington, D.C. flight route: American Airlines, Delta, Alaska Airlines, Lufthansa, United Airlines, JetBlue, and Air Canada.

  • Which aircraft models fly most regularly from St. Louis to Washington, D.C.?

    The Airbus A319 is the aircraft model that flies most regularly on the St. Louis to Washington, D.C. flight route.

  • Which airline alliances offer flights from St. Louis to Washington, D.C.?

    oneworld, and Star Alliance are the airline alliances operating flights between St. Louis and Washington, D.C., with Star Alliance being the most commonly used for this route.

  • On which days can I fly direct from St. Louis to Washington, D.C.?

    There are nonstop flights from St. Louis to Washington, D.C. on a daily basis.

  • Which is the best airline for flights from St. Louis to Washington, D.C., Delta or United Airlines?

    The two airlines most popular with KAYAK users for flights from St. Louis to Washington, D.C. are Delta and United Airlines. With an average price for the route of $296 and an overall rating of 8.0, Delta is the most popular choice. United Airlines is also a great choice for the route, with an average price of $337 and an overall rating of 7.4.

  • How does KAYAK find such low prices on flights from St. Louis to Washington, D.C.?

    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 St. Louis to Washington, D.C..

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from St. Louis to Washington, D.C.?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Washington, D.C. from St. Louis 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 St. Louis to Washington, D.C.?

    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 to Washington, D.C. with an airline and back to St. Louis with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from St. Louis to Washington, D.C.?

    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 to Washington, D.C. from St. Louis up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top tips for finding a cheap flight from St. Louis to Washington, D.C.

  • Looking for a cheap flight? 25% of our users found flights on this route for $140 or less one-way and $248 or less round-trip.

Prefer to fly non-stop from St. Louis to Washington, D.C.?

Find which airlines fly direct from Lambert-St Louis to Washington, D.C., which days they fly and book direct flights.

Nonstop departures

Lambert-St Louis to Washington, D.C.

Monday

American Airlines, Avianca, Brussels Airlines, +4 more

American Airlines, Avianca, +5 more

Tuesday

American Airlines, Avianca, Brussels Airlines, +4 more

American Airlines, Avianca, +5 more

Wednesday

American Airlines, Avianca, Brussels Airlines, +4 more

American Airlines, Avianca, +5 more

Thursday

American Airlines, Avianca, Brussels Airlines, +4 more

American Airlines, Avianca, +5 more

Friday

American Airlines, Avianca, Brussels Airlines, +4 more

American Airlines, Avianca, +5 more

Saturday

American Airlines, Avianca, Brussels Airlines, +4 more

American Airlines, Avianca, +5 more

Sunday

American Airlines, Avianca, Brussels Airlines, +4 more

American Airlines, Avianca, +5 more

See more direct flights

Nonstop returns

Washington, D.C. to Lambert-St Louis

Monday

American Airlines, Avianca, Brussels Airlines, +4 more

American Airlines, Avianca, +5 more

Tuesday

American Airlines, Avianca, Brussels Airlines, +4 more

American Airlines, Avianca, +5 more

Wednesday

American Airlines, Avianca, Brussels Airlines, +4 more

American Airlines, Avianca, +5 more

Thursday

American Airlines, Avianca, Brussels Airlines, +4 more

American Airlines, Avianca, +5 more

Friday

American Airlines, Avianca, Brussels Airlines, +4 more

American Airlines, Avianca, +5 more

Saturday

American Airlines, Avianca, Brussels Airlines, +4 more

American Airlines, Avianca, +5 more

Sunday

American Airlines, Avianca, Brussels Airlines, +4 more

American Airlines, Avianca, +5 more

See more direct flights
See more direct flights

Top 4 airlines serving from St. Louis to Washington, D.C.

 
See real verified KAYAK customer reviews for airlines flying from St. Louis to Washington, D.C.. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from St. Louis to Washington, D.C.? 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
DeltaOverall score based on 10810 reviews
8.0Entertainment
7.9Comfort
7.4Food
8.6Crew
8.2Boarding
Airline reviews

The gate area was incredibly short staffed, with one representative manning 4-5 flights, which caused a 3 hr delay in boarding even though the plane was all ready to leave. Other flights also were delayed because of this. The flight crew was awesome and I feel bad for the only gate worker on call, but Delta needs to hire more employees.

2.0 MediocreAnonymous, May 2024AVL - LGA
Read more about Delta reviews

The gate area was incredibly short staffed, with one representative manning 4-5 flights, which caused a 3 hr delay in boarding even though the plane was all ready to leave. Other flights also were delayed because of this. The flight crew was awesome and I feel bad for the only gate worker on call, but Delta needs to hire more employees.

Very frustrated with boarding gate crew. She announced the plane was small and they would be limiting us to one item to carry on. Not a problem for me as I understand the tiny planes have limited space!! Not the case here! It was a rather large plane and had plenty of room for bags! So because I don’t want to be one of “those people” who ignores the request to check a carry on I did so asking if I would be able to pick it up at the bottom of the ramp on arrival in Knoxville to which she responded “yes”! Then I watched as every other passenger held onto their 2 items and boarded!! Then when we arrived in Knoxville our 2 carry ons had been put with all the other luggage and we had to go to baggage pick up and wait for all the big checked bags to come off the carousel! So she lied!! Frustrating. Next time I won’t be so nice!

It was a good experience except when boarding a female flight attendant did not go out of her way to assist my teenage daughters in finding space for their carry-ons after their compartments were full.

On time departure, smooth trip, flight attendant told through passengers the gate we would arrive at and the gate our outbound flight was departing from. Early arrival

Checking in at the airport the agent only booked the first keg of my trip and had my checked luggage going to the airport with a layover! Never was issued a boarding pass for the second leg or received sticker fir my checked bag. All was well in the end! Delta agents helped to resolve the situation!!!

Delayed due to an ill passenger after loading. Not preventable on Delta's part. Was in first class. The seats are becoming worn and detaching from their velcro attachments. Only got snacks on flight. The attendant was not the friendliest.

I would fly again the whole experience was great. The only feed back I can give that they don't do that American Airlines does is the crew there is more humorous with boarding and thank their passengers. It makes it more fun to fly with them. I would however fly Delta again.

From Atlanta to Cabo I would have hoped on a plane that size I would have been able to breathe and wiggle my feet a little! The leg room in that plane is non existent and I am only 5”4’. And the air vent either wasn’t working very well or just could not blow air from the ceiling to the seat area as I was suffocating through the entire flight! And please don’t say I would have been more comfortable in first class because I cannot afford those rates and have always travelled Main Cabin without issues !

The pilots were good. Disappointing when planes don't have electrical ports

I liked the piloting of the aircraft. Very disappointed about lack of electrical ports. Also, although a short flight. there was enough time to hand out snacks to comfort + seats as was done for first class.

All flights were on time and boarding was issue free

Water service would be great. The way they board is terrible. Slow passengers first😂😂 They need to smart up a bit

It got me where I needed it to; not much more. It had no competition so that was why I chose it.

Plane didn’t even make it off the ground. We all had to get off and walk to a different terminal (lots of confusion) to get on a different plane. Landed fairly late, connections missed.

Crowded flight, but upbeat and kind crew. Pilot greeted us at door, flight attendant thanked a number of “special” passengers for their business, another addressed an eight-year old boy as “young man.” United obviously trying to up their game, but though all of that is nice and notable, flying still feels like moving along a human assembly line, being herded into one small space after another (boarding areas with too few seats, planes with limited personal space, shuttles (IAD) packed too full.

It was ok until we got to DC and I wanted to use my United Club pass and the snobbish receptionist said that they don’t take one pass. It took me everything itch of patience not to tell her off

Food choice was poor and we had to buy on board snacks.

We were offer chocolate cookies , not everyone eat chocolate. Thank you

Onboarding - it would be great to see on the screen what group they were boarding. It was very confusing on who was boarding (even though they called it out) they were not clear and the space to board was strange.

Lost luggage again. Our second trip to Mykonos, and 2nd time no luggage.

The CX617 from HK to BKK was delayed more than 1.5 hours.

The Flight attendant had an attitude and didn't allow anyone any time to prepare for landing despite being absent throughout the entire trip

American Airlines continues to price it can provide the least comfortable passenger experience in the air. This legacy carrier rivals the budgets for both terrible seats and inadequate amenities. I am a 5’7” woman who is not wider than a coach seat (even on these narrow bodied aircraft). My 3.5 hour flight was terribly uncomfortable because the leg room is inadequate (my knees hit the seat on front of me even when it was not reclined); the seat barely reclines; and the foam padding is worn thin to the extent one can feel the metal supports of the seat. Add to this the fact that the aisle is super narrow, so that the drink cart literally scrapes the arm rest of the aisle seat. It’s basically torture.

The flight was great until towards the end when the flight attendant read an excessively long commercial for purchasing an american airlines credit card. The worst part is that we are doing a lot of traveling this year so i was actually interested in getting the credit card, but I was so annoyed with the long commercial that I completely dismissed the flight attendant bringing around the information. Next time, keep the sales pitch to 10 seconds and then pass around the brochures!!

Nice aircraft. Plane was PACKED full and distance between seats was tight. Had it been more than a two hour flight it would not have been tolerable. I had much more knee space on the JetBlue flight I went out on.

New ridiculous policy by american destroyed my allegiance to american. As a million miler with american, I expected it would be easy to get on an earlier flight when I got to airport earlier than expected, and save a five hour layover. WRONG. The online app would not let me switch flights, So I called, and was promised a call back in 90 minutes. HAH! The customer service desk at DCA said “we no longer have access to changing a flight on our screens. If the app couldn’t do it, I should send a letter to American, but there’s nothing else possible!”

I am tired of being nickel and dimed for seat location, checked luggage and carry on bags. That is why i rarely fly anymore.

It was right on time and crew were very courteous

Great flight. Boarding was efficient and quick. On time departure and smooth flight. Flight arrived early at destination. Good experience.

Literally the worst experience ever and I had my service dog with me. Flight was supposed to leave at 1:51 PM but the plane arrived late. They boarded us around 3 PM and kept us on the plane for an hour saying that due to weather conditions in Miami, we could not takeoff yet. After waiting for an hour, they deplaned. And then they will not give us our bags back that we could just leave and schedule for another flight. Every hour they kept updating saying we have to wait another hour without any explanation as to what was going on. Eventually, I went to customer service to change my ticket, but by the time I made it to the front of the line, they started boarding my flight again. And then when we got onto the flight, they said there were two flight attendants That were past their shift. They kept us on the plane for about another 40 minutes until they told us they had no other flight attendance and had to deplane again. Then I gave us hotel vouchers and told us we would be on a flight at 6 AM the next day. At this point it is about 9 PM. I get to the hotel with my dog, who hasn’t been able to go potty for about eight hours. When I arrived at the hotel, I got a text alert saying my flight has been canceled at 6 AM and they moved past to 5 AM, however the hotel shuttle doesn’t leave early enough to make it to the airport for 5 AM flight. So me and some other passengers got a cab after about three hours of sleep to get back to the airport. This was the worst experience ever.

Frontier is a crappy airline nothing about it is honest

I didn't get to do this flight l, hard to review

Not good 😐 Over priced baggage fees Small hard seats No wifi or entertainment options 😕

Didn't like anything!! Horrible flight. Small seating area and hard seats. Butt was sore after 2 hour flight to Seattle No entertainment or free refreshments No wifi or USB charging receptacles to charge phone entoute like other airliners Luggage rates were 3 times as much as competitors. Difficult to navigate online luggue process to pre pay before flight Overall bad experience WILL NEVER RIDE OR RECOMMEND FRONTIER TO FRIENDS OR FAMILY MEMBERS!!! THIS IS A SHAME!! MOST MESERIBLE FLIGHT OF MY LIFE!! AND I THOUGHT SPIRIT WAS 👎 YOU GOT THEM BEAD HANDS DOWN!!

Flight was a little late taking off. Seats are too upright, no ports to charge devices, no wifi, no entertainment

Six hour delay. Poor customer service. No voucher. Bad communication. Missed important appointments.

Our flight was delayed an hour, then when we got to board our flight finally, we were waiting in our seats for take off for 45 minutes before it was communicated that there was a maintenance issue therefore we waited on the plane for over an hour while that was resolved. We did not get to Phoenix until almost 3 hours after we were originally supposed to. This was the first and last time I will be flying Frontier.

Flight was canceled with little warning. Flight was rebooked through Ontario, California and connecting flight was delayed by over three hours. Frontier is living up to their Greyhound of the skies reputation for sure.

I purchased a carry on bag online…was supposed to cost $72 but after a whole slew of bs charges, the total was over $175.00. Because of these hidden charges, I will not even consider flying Frontier ever again. It’s just not worth the hassle. I’m scratching this company off my list forever.

Flight was OK. Seats were good no cell phone charges on the plane no TVs or entertainment.

Book cheap flights from St. Louis to Washington, D.C.

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from St. Louis to Washington, D.C. found on KAYAK in the last 72 hours.
6/4Tue
1 stopSpirit Airlines
12h 59mSTL-BWI
$45
6/4Tue
2 stopsSpirit Airlines
17h 00mSTL-BWI
$53
5/21Tue
1 stopFrontier
12h 19mSTL-DCA
$81
5/16Thu
1 stopFrontier
11h 27mSTL-BWI
$81
6/5Wed
nonstopAmerican Airlines
2h 02mSTL-DCA
$85
6/4Tue
1 stopDelta
6h 56mSTL-DCA
$93
6/4Tue
1 stopDelta
3h 41mSTL-IAD
$93
8/28Wed
nonstopAmerican Airlines
1h 57mSTL-DCA
$95
8/21Wed
nonstopUnited Airlines
2h 08mSTL-IAD
$95
6/15Sat
nonstopUnited Airlines
2h 10mSTL-IAD
$164

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Last minute flights from St. Louis to Washington, D.C.

Last minute flight, train and bus deals

 
These last-minute flight deals are the cheapest flights found on KAYAK in the last 72 hours for flights from St. Louis to Washington, D.C. that are departing in the next 10 days.
5/9Thu
multi-stopFrontier
22h 51mSTL-BWI
5/13Mon
multi-stopFrontier
27h 50mBWI-STL
$262
5/11Sat
multi-stop
6h 03mSTL-BWI
5/15Wed
multi-stop
11h 18mBWI-STL
$269
5/11Sat
multi-stopSpirit Airlines
6h 03mSTL-BWI
5/17Fri
multi-stopSpirit Airlines
19h 13mBWI-STL
$319
5/11Sat
multi-stopSpirit Airlines
6h 03mSTL-BWI
5/16Thu
multi-stopSpirit Airlines
11h 40mBWI-STL
$438
5/8Wed
multi-stopAmerican Airlines
5h 11mSTL-IAD
6/10Mon
multi-stopAmerican Airlines
4h 48mIAD-STL
$447
5/8Wed
nonstopUnited Airlines
2h 10mSTL-IAD
6/10Mon
multi-stopUnited Airlines
18h 26mIAD-STL
$509
5/11Sat
multi-stopAmerican Airlines
26h 50mSTL-DCA
5/12Sun
nonstopAmerican Airlines
2h 16mDCA-STL
$517
5/8Wed
multi-stopUnited Airlines
5h 47mSTL-IAD
6/10Mon
multi-stopUnited Airlines
18h 21mIAD-STL
$532
5/11Sat
multi-stopDelta
5h 25mSTL-DCA
5/15Wed
multi-stopDelta
4h 09mDCA-STL
$554
5/11Sat
multi-stopDelta
5h 48mSTL-IAD
5/15Wed
multi-stopDelta
4h 58mIAD-STL
$554

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St. Louis - Washington, D.C. Flights

Departure:

St. Louis (undefined)United States

Return flight deals:

Washington, D.C. - St. Louis

Cabin classes:

$648
$839
$1,216
$198

Compare transportation modes for St. Louis to Washington, D.C.

Average priceAverage duration
Flights$1,1601h 59m
Buses$17323h 48m