$63 Find Cheap Flights from St. Louis to Maryland

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 Maryland departing on 3/11. 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
1 adult, Economy, 0 bags

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

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from St. Louis to Maryland, 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 Maryland, as well as popular online travel agencies
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Cheap Flights from St. Louis to Maryland

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Washington, D.C.
Baltimore1 stop$135
Salisbury
Salisbury1 stop$460
Washington, D.C.
Baltimore1 stop$135
Salisbury
Salisbury1 stop$460

Book Cheap St. Louis to Maryland Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from St. Louis to Maryland 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 for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from St. Louis to Maryland

Tue, Feb 17 - Tue, Feb 24
Frontier Logo
3:49 pm - 2:40 pm
STL
-
PHL
21h 51m
1 stop
Frontier Logo
6:40 pm - 6:51 am
PHL
-
STL
13h 11m
1 stop
$134Frontier
Wed, Feb 18 - Sat, Feb 21
Multiple Airlines Logo
8:17 pm - 12:31 am
STL
-
BWI
27h 14m
1 stop
Multiple Airlines Logo
4:45 pm - 11:59 pm
BWI
-
STL
8h 14m
1 stop
$135Multiple Airlines
Wed, Feb 18 - Wed, Feb 25
Multiple Airlines Logo
8:17 pm - 1:01 am
STL
-
PHL
27h 44m
1 stop
Multiple Airlines Logo
5:30 am - 10:27 pm
PHL
-
STL
17h 57m
1 stop
$136Multiple Airlines
Tue, Feb 17 - Tue, Feb 24
Southwest Logo
6:10 pm - 11:20 pm
STL
-
DCA
4h 10m
1 stop
Southwest Logo
11:00 am - 5:05 pm
DCA
-
STL
7h 05m
2 stops
$258Southwest
Tue, Feb 10 - Thu, Feb 12
American Airlines Logo
9:54 am - 12:59 pm
STL
-
DCA
2h 05mnonstop
American Airlines Logo
7:30 am - 9:06 am
DCA
-
STL
2h 36mnonstop
$261American Airlines
Wed, Feb 11 - Thu, Feb 12
United Airlines Logo
8:30 am - 11:40 am
STL
-
IAD
2h 10mnonstop
United Airlines Logo
8:40 am - 10:13 am
IAD
-
STL
2h 33mnonstop
$261United Airlines
Sat, Feb 14 - Tue, Feb 17
Southwest Logo
7:50 am - 12:50 pm
STL
-
DCA
4h 00m
1 stop
Southwest Logo
10:45 am - 5:35 pm
DCA
-
STL
7h 50m
2 stops
$266Southwest
Tue, May 12 - Wed, May 20
American Airlines Logo
3:24 pm - 10:04 pm
STL
-
DCA
5h 40m
1 stop
American Airlines Logo
7:57 pm - 9:23 pm
DCA
-
STL
2h 26mnonstop
$267American Airlines
Wed, Feb 11 - Thu, Feb 12
United Airlines Logo
8:30 am - 11:40 am
STL
-
IAD
2h 10mnonstop
United Airlines Logo
5:34 pm - 11:59 pm
IAD
-
STL
7h 25m
1 stop
$271United Airlines
Tue, Mar 10 - Tue, Mar 10
Delta Logo
6:32 am - 11:32 am
STL
-
IAD
4h 00m
1 stop
Delta Logo
5:32 pm - 8:42 pm
IAD
-
STL
4h 10m
1 stop
$277Delta
Booking Insights

KAYAK's insights & trends for St. Louis to Maryland flights

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

What is the cheapest St. Louis to Maryland flight route?

Data is based on round-trip flight searches on KAYAK over the past month.

The cheapest ticket to Maryland from St. Louis found in the last 72 hours was to Baltimore, at $384 round-trip. The most popular route is from St. Louis (STL) to Baltimore (BWI), and the cheapest round-trip airline ticket found on this route in the last 72 hours was $384.

Can I save money by flying with a layover from St. Louis to Maryland?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

No, with an average price for the route of $298, prices are generally cheapest when you fly direct.

What is the cheapest month to fly from St. Louis to Maryland?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from St. Louis to Maryland, 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 Maryland is August, when tickets cost $229 (return) on average. On the other hand, the most expensive months are January and March, when the average cost of round-trip tickets is $382 and $371 respectively.

What’s the cheapest day of the week to fly from St. Louis to Maryland?

The average price of all round-trip flights from St. Louis to Maryland clicked on KAYAK for each day over the last 12 months.

If your flying dates are flexible, you should consider flying to Maryland on a Friday, 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 Maryland. For your return ticket, we recommend flying on a Wednesday and avoiding Mondays for the best deals.

How far in advance should I book a flight from St. Louis to Maryland?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from St. Louis to Maryland, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from St. Louis to Maryland, you should book around 4 weeks before departure, which saves you about 55% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 15 weeks before departure.

Good to know

Low seasonSeptember
Cheapest flight$63
Best time to beat the crowds with an average 10% drop in price.
Most popular time to fly with an average 24% increase in price.
Flight from St. Louis to Baltimore

FAQs - booking Maryland flights

  • How does KAYAK find such low prices on flights from St. Louis to Maryland?

    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 Maryland.

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

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

    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 St. Louis to Maryland 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 St. Louis to Maryland?

    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 St. Louis to Maryland up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • What is the cheapest time of day to fly to Maryland?

    The cheapest time of day to fly to Maryland is generally at night, when round-trip flights cost $319 on average. Morning departures are around 24% more expensive than evening flights, on average. The most expensive time of day to fly to Maryland is generally in the afternoon, which is peak travel time and where the average cost of a ticket is $915.

Top tips for finding cheap flights to Maryland

  • Looking for a cheap flight? 25% of our users found tickets from St. Louis to the following destinations at these prices or less: Philadelphia $331 one-way - $451 round-trip

Reviews of the top 4 airlines serving from St. Louis to Maryland

 
See real verified KAYAK customer reviews for airlines flying from St. Louis to Maryland. 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 Maryland? 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 4267 reviews
8.0Comfort
8.6Crew
8.1Boarding
7.0Food
7.5Entertainment
Airline reviews

Great flight but super high price. Glad it was a business trip and not personal

10.0 ExcellentPieter, Jan 2026
LGB - DAL
Read more Southwest reviews

Great flight but super high price. Glad it was a business trip and not personal

On time. Friendly staff. Took to long to pre bord all the specialty groups. Cramped small plane

The seats were comfortable, and the boarding process was pretty smooth.

3 hour delay. Had to change plans and was still delayed.

The staff was very friendly, professional, and courteous. The overall flight was a great experience.

The crew canceled the complementary snack and drink in anticipation of turbulence that never materialized. I was counting on the drink (water) to take the the doses of medication - prescribed for my heart condition - that were due during the flight. Since no snack or meal was served on this flight, I cannot rate the food quality. Otherwise, this flight was excellent.

Departure was delayed more than 1/2 hour while we waited for luggage (only) transfer from another flight/plane. Once approved for takeoff, the flight was excellent.

We got exit row seats both flights. Everything was running on time

Never went on board this flight. Kayak uses Underpricer (which is a scam business) as it's "customer service provider". This customer service is a classic bait and switch "service". I Got caught in the UnderPricer Bait and switch scam. 14 hours on the phone with people from India with heavy accents and upselling me to useless products. The original sell was a flight on spirit. Then they contact me later, an say after they have my money that the flight is no good as is is only one seat for a party of two. I am still in dispute to get my money back. Went to Spirit direct and had a beautiful vacation. I should never have used Kayak and their rip off artists UnderPricer.

The flight crew was extremely rude and especially not helpful when our flight was delayed.

The flight was delayed and oversold. I volunteered to give up my seat for compensation. Thinking I could get a good night's sleep instead of arriving home at 2 am. It took over an hour to get the new reservation confirmed, three different gate attendants, and two red coats. It took even longer to confirm the overnight hotel, and when I arrived, the line was 45 minutes long, with two people checking in, and at least 15 people slowly, very slowly—no food except frozen convenience food, no coupon for food from airlines. Slept, headed back to the airport, and that flight had an equipment change and a gate change just as they were about to board. It took an additional hour to board as they cleaned the plane from storage.

There was no wifi available on this flight. And there were no screens, no onboard entertainment, no entertainment options at all. It was like travelling in the 1990s again, except without even a main screen for options. Seats, as usual, were tight and uncomfortable.

Good seat comfort ORF to ATL. Bad seat ATL to SEA (terrible lumbar support, hard, ouch)..

Because I was moved to an exit row, the snacks in economy comfort, the selection of snacks was better.

I upgraded to first. Quick and easy boarding. Comfortable seat with power and a nice IPA.

Probably not the fault of Delta but there was delay after delay after delay and I ended up getting home 4 hours later then I should have at 1:30 in the morning

No in flight service, no explanation - FC got service, C+ did not, unsure about Economy. No turbulence to speak of, so I guess another way to cut cost, or promote health and well being of Delta employees? Also, boarding in MEM combined zones, and with overhead space already full on both flights after Zone 2/ Diamond, presents a huge challenge to find a space for a bag. Delta, other than point A to B, is no longer reasonable to fly - very poor experiences, not even taking into account the chastising at the gate and rude crews, across the board.

It would have been better if the flight wasn't delayed by 2.5 hours

Delta’s staff is unmatched. From the gate agents, to the pilots, to the flight attendants… all top of the industry.

Delta flight Delay for ,more that two hours i.e original flight was 6.30 PM and it starts at 8.45 PM, When we connect Delta team for meal vouchers as it is late arrival in designation,But we did not get it as per delta policy , which is not good for mid night arrival,

This flight captain and crew were amazing, started ahead of time of departure and reached 30 mins before arrival time. Amazing!

Long delays, lack of information about the status of the flight. The flight was delayed 4 times.

Could we please end the loud announcements about credit card offers on your flights? We are trying to sleep, work, watch videos, etc. and if we need a credit card, we will ask for one. Flying is already not what it used to be.

I would like the crew to talk LESS over the PA and specifically about credit card offers. I am trying to work, sleep, watch a movie and the PA was booming about a credit card offer. Could we go back to the days when the customer was more important than selling a credit card?

No enough space plus only allowing one laggage instead of two like other airlines.

It was good. But the gate team made me check my carry on when there was plenty of space for my luggage on the plane. Otherwise our trip was fine.

The entertainment options were at best, fair. It was exactly the same as my outbound flight. It would have been more entertaining if there were some series from Apple TV, HBO, Showtime or other carriers for me to catch up with.

Concern Regarding Significant Gate Delay and Jet Bridge Issue Dear Customer Relations Team, I am writing to express my disappointment with the experience I had on my recent flight AA 2414 on Sunday January 18, 2026. What should have been a routine departure turned into a frustrating and avoidable delay due to an issue with the jet bridge at the gate. As a result, the flight was delayed by approximately 90 minutes while multiple gate changes were attempted. The lack of clear communication during this period made the situation even more challenging. Passengers were left uncertain about the cause of the delay, the expected timeline, and the next steps. This not only disrupted travel plans but also created unnecessary stress for everyone on board. I understand that operational issues can arise, but a malfunctioning jet bridge and the resulting extended delay suggest an area where procedures or equipment maintenance may need attention. I hope you will review this incident to prevent similar disruptions in the future. I would appreciate acknowledgment of this concern and consideration of appropriate compensation for the inconvenience and lost time caused by this delay. Thank you for taking the time to review my experience. I look forward to hearing from you. Sincerely, Dion Dillard

They made me pay $40 to check a bag that was listed as free when I bought my ticket. Then before boarding they offered to check any bags free.

It was a good trip. Flight Attendants were friendly and responsive.

Good for a budget airline! It was easy to get on, staff was really nice. Can’t say anything about the food or entertainment because it wasn’t available, which is fine.

I am writing to express my disappointment with my recent Frontier Airlines flight. I was charged $99 at the gate because my bag was said to be too large, yet once onboard there was no available overhead bin space, and I was required to place the bag under the seat in front of me anyway. This made the charge feel unnecessary and unfair. Additionally, before the flight even took off, I was asked to move from the seat I paid for into a middle seat so another passenger and her cat could have my seat to themselves. I was not offered compensation or an explanation for being moved from a paid seat. Between the unexpected bag fee and being forced to give up my seat, this experience fell well below acceptable customer service standards. I would appreciate a review of this situation and appropriate compensation.

It was costly and difficult to check in. $85 to take a small suitcase with me, carry on or checked and $75 on the return trip, Plus $25 if I didn't check my self in check in $25, because I couldn't do it on the kiosk. Small very uncomfortable seats, waited on the runway for near an hour each way. It was my worst flight to date.

It was ok. It was expensive to check 2 bags ($75.00 per bag), and then it took a long time to wait for shuttle to take us from one terminal to the terminal where the plane was taking off at LAX. And all of this for a flight where we had to pay for any food or drink that was not water.

It didn’t happen. I booked it and then was told it wasn’t available and then forced to pay far higher prices for a worse option

A 630departure flight Delayed 6hours! They changed my gate, I moved to the new gate. Had our flight on the screen for 12noon departure. I go get above to eat, check screen again and the flight was gone, no notice no announcement, nothing!! They sent my bag on the flight I wasn’t on, got it back to me 3days later. Thank goodness they did refund my money but I will NEVER fly them again.

Due to weather, my flight was delayed, further delayed, then canceled. I eventually got through to a support person who helped me find a different route out of MSP, but to get to DIA, they didn't want to, but eventually did help with the connection ticket purchase. But even this replacement flight was delayed time and time again, and I would have missed my connecting flights and I didn't want to get stuck in a layover city, so after 12 hours at the airport with two young boys who were very tired, we just cancelled our plans and spent the week at home, instead of Nana's.

Plane and crew on board were fine. Everything else was terrible.

The third party booking with cheapflightsfares was awful. Kayak should NOT partner with them. They sold me a bundle including seat selection and carry-on, but did not book the carry-ons with Frontier, so I’m out of pocket for $414 more while I await resolution.

This company socks. It's fraud. They canceled our flight yesterday, and today we were late because of a really long line at the check in bag. At the rebook station, there was ton of people. The workers were all rude. I am gonna make a report to FTC.

Everything you need to know for your flight from St. Louis to Maryland

Information on your arrival and departure airports