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Cheap Flights from St. Louis to Maryland

Cheapest round-trip prices found by our users on KAYAK in the last 5 days
Sort by: Cheapest
Baltimore
1h 55mNonstop
from $208per person
Salisbury
4h 27m2 stops
from $509per person
Booking Insights

Price, demand and travel trends for St. Louis to Maryland flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights with more confidence.

What are the cheapest fares from St. Louis to Maryland recently?

The cheapest fare from St. Louis to Maryland in the last week was $208 round-trip, to Baltimore/Washington (BWI).

How do fares into airports in Maryland compare?

According to KAYAK data from the last 12 months, the cheapest airports to fly into Maryland from St. Louis are:

• Baltimore/Washington (BWI) (avg. price $422)
• Salisbury-Ocean City (SBY) (avg. price $677)

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

September is typically the cheapest month to fly from St. Louis to Maryland, with round-trip fares averaging $347. June and November are usually the most expensive, averaging $571 and $480, respectively.

How do fares from St. Louis to Maryland vary by day of the week?

On average, Tuesday is the cheapest day to fly from St. Louis to Maryland and Monday is the most expensive. Looking at the past 12 months of KAYAK data, it's 34% more expensive to fly on a Monday compared to Tuesday.

What's the best time of day to fly from St. Louis to Maryland?

It's cheapest to fly to Maryland in the afternoon with average prices of $408. The night is the most expensive time to fly, with average prices of $569.

What's the best time to book a flight from St. Louis to Maryland?

Book your flights 7 weeks before your trip. KAYAK data collected over the past 12 months shows that booking in this window can save you around 44% compared to booking at the last minute (within 2 weeks of departure).

Key details for St. Louis to Maryland flights

Low season

September

Cheapest flight

$90
Beat the crowds with an average 14% drop in travelers.
The most popular month to fly with an average 14% increase in travelers.
One-way flight from St. Louis to Baltimore

Your St. Louis to Maryland flight questions, answered

Find helpful answers about this route, including flight times, airports, airlines and booking tips.

  • Is now a good time to book a flight from St. Louis to Maryland?

    Yes. Fares from St. Louis to Maryland are low right now. As a rule of thumb, a round-trip under $353 (cheaper than most fares this year) is a good deal, so if you spot one at or below that, it's a good time to book.

  • How much should I budget for a flight from St. Louis to Maryland?

    Over the past 12 months, round-trip fares from St. Louis to Maryland have typically cost between $353 and $525.

  • What are the main airports serving Maryland?

    Maryland has 9 airports. 98% of KAYAK users choose Baltimore/Washington (BWI) as their arrival airport.

  • Which airlines fly nonstop from St. Louis to Maryland?

    Based on the flight schedule for the next 3 months, just one airline regularly flies nonstop from St. Louis to Maryland: Southwest.

  • Which destinations in Maryland can I fly nonstop from St. Louis?

    Based on the flight schedule for the next 3 months, you can fly nonstop from St. Louis to just one destination in Maryland: Baltimore.

  • Is it cheaper to fly with a layover from St. Louis to Maryland?

    Yes, nonstop flights from St. Louis to Maryland average $452 over the past 12 months, but flights with a layover can cost less. The most affordable connecting airports are:

    • Atlanta Hartsfield-Jackson (ATL) (avg. price $271)
    • Orlando (MCO) (avg. price $274)
    • Chicago O'Hare Intl (ORD) (avg. price $404)

  • How long is a flight from St. Louis to Maryland?

    Nonstop flights from St. Louis to Maryland take 1h 59m on average. All flights fly into Baltimore/Washington (BWI).

  • Which cabin classes are available from St. Louis to Maryland?

    On flights from St. Louis to Maryland you can only book Economy Class.

  • What are some popular landmarks around Maryland?

    Maryland is home to many popular sights. KAYAK travelers' favorites include:

    • M&T Bank Stadium
    • National Aquarium Baltimore
    • Oriole Park At Camden Yards
    • Pier Six Pavilion

  • What are the earliest and latest flights from St. Louis to Maryland?

    The earliest nonstop flight from St. Louis to Maryland departs at 5:00 am and the latest leaves at 9:20 pm. Nonstop flights take about 1h 59m.

Your guide to booking St. Louis to Maryland flights

Get tips on when to book, when to fly and what to know before your trip.
  • If you can plan ahead, the sweet spot for booking your flight is 7 weeks before your trip. KAYAK data shows fares in this window are around 44% lower than last-minute bookings (made within 2 weeks of departure). Not ready to commit? Set a Price Alert and we'll let you know when prices change.
  • Flexible with your dates? Fly in September to save some money. It's typically the cheapest month on this route, while flights in June will cost you the most.
  • Fly out on a Tuesday to get the cheapest fares. Avoid Monday flights, which are about 34% more expensive.
  • If you're watching your budget, fly into Baltimore/Washington (BWI) which has the lowest average airfare in the region. Just remember to budget for any onward travel by bus, car or domestic flight.
  • Start your trip in Ocean City, the most popular destination in Maryland. From there, it's easy to continue on to other popular spots such as Baltimore, Annapolis and National Harbor.
  • Whether you're trying to save time or money, Baltimore/Washington (BWI) is usually your best option from St. Louis.

Reviews of the top 3 airlines serving from St. Louis to Maryland

 
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 4220 reviews
7.0Food
8.0Comfort
8.6Crew
8.1Boarding
7.5Entertainment
Airline reviews

Trash experience on all my flights this week. Delay after delay. The flight I’m waiting for has been delayed 6 times and nearly 3 hours.

2.0 MediocrePhilip, Sep 2026
Read more Southwest reviews

Trash experience on all my flights this week. Delay after delay. The flight I’m waiting for has been delayed 6 times and nearly 3 hours.

Exceptional. The gate crew responded quickly and got me onto this earlier flight as the final passenger, saving me more than four hours of wait time for my reserved flight.

The flight was delayed due to earlier issues at other airports. The crew was excellent & made it a good trip.

Snacks are always pretzels. Why can't you also offer peanuts ?

Only downside was the legroom and seat width, which is always a problem unless I spend more for a premium seat.

Very good. Sad to learn Southwest is going start to charge for bags

Exceptional crew! Friendly and professional. Pleasant attitude and treated everyone with respect.

The flight was promptly on schedule and Southwest delivered everything they promised. No excuses for any shortfalls just 100% ownership of their responsibilities and business. The boarding and seating policy is a complete shambles. What started out as a great idea when Southwest first hit the market has been turned into a disaster due to the lack of integrity in many of the people who fly Southwest and take advantage of Southwest generosity at the expense of their fellow passengers.

Crew was excellent - Plane was fine. Media was good, could use more kid shows; Not a fan of the brownie brittle -- snack could be slightly better.

Left on time and arrived early. Brand new plane and no parts missing. Comfortable seats. The actual Captain spoke prior to the flight and reassured everyone about safety. Crew was so nice and fun. Perfect flight!

My luggage was not sent with us. Not sure if this is Envoy Air responsibility but that was a very BAD experience

American delayed the flight for a crew rest period. The delay occurred late in the evening - the earliest i can find is 10:20 pm. With a 6 am flight anyone on the flight would have already have been asleep (unless you are insane, a vampire or on drugs) and at least for me i was already on the way to the airport at 445 am the next morning when i discovered they delayed the flight until 9 am. Given the incoming flight was in the air at 6 pm the evening before this should have been figured out a lot more timely that was there only crew to use. Just frustrating given there is no consideration for customer experience anymore in flying.

Good crew and flight was on time. It’s a small plane with limited overhead luggage space. They said the overhead space was full and I had to check my bag. There was still space when I got on. Waiting for my checked luggage added 30 minutes to my trip. Not the end of the world but also not great.

Trip delayed for 2 hours because of rain. We boarded and have to get down the flight and reboard again.

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

Qatar airways ,boarding arrangements at Hamid international airport could been better

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.

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

Overall boarding and debarking is a joke. I dont even bring luggage anymore on trips because you can never allow them to be place then in the overhead bin or you have to pay or you check them which is even worse having to wait for your luggage on the tarmac.

First time flying internationally with AA and probably my last. Not military friendly at all. Didn't allow free checked bag for military family members (dependents) on orders like other airlines. We were charged $100 for baggage weight overage (5 lbs!)even though we had military orders allowing us extra.. Didn’t allow military members to board early. Inefficient and long wait time to board. Seats are smaller and more uncomfortable than other airlines.. no drink service for over 7 hrs of flight! After initial meal was served, the crew never offered a snack or drinks until the breakfast's was served 1 1/2 hrs before landing. Overall expensive and poor experience for the entire flight.

On Frontier's website and on the app it clearly states that "Eligible active-duty U.S. military personnel and their accompanying spouse and children, when the service member is present and traveling on the same itinerary, will receive complimentary baggage benefits after successfully verifying their military status through ID.me" however, when checking in at the counter the attendant at the ticketing counter stated that it was only for the active duty service member, when I showed the attendant what it stated on the Frontier website and app she gave me an attitude but did change it eventually.

Airport staff was terrible, they made up excusses on how I can get to my terminal, I missed my flight then had to pay for A whole other flight! Worst experience ever, even A employee also loughed and said yea sorry for our poor training.

THE BARE METAL SEATS AT THE FRONTIER GATE IN CLEVELAND HOPKINS AIRPORT ARE DISGUSTING...BUT JUST A LITTLE BETTER THAN THE SEAT MATERIALS ON THE PLANE! THE "COMMERCIAL" ANNOUNCMENT PUSHING THE CREDIT CARD DEAL IS OBNOXIOUS AND UNWELCOME! THE VOLUME OF THE OFFER ANNOUNCMENET BLARES LOUDLY AND IS FILLED WITH A HYPED UP, CANNED SCRIPT. BOTTOM LINE IS THE FLIGHT AND THE CREW WERE VERY GOOD EXCEPT FOR THE ABOVE.

Maximizing profits is one way to a healthy bottom line, the other is repeat business and referrals from satisfied customers. Frontier has clearly chosen the former. One of many examples: Family emergency required me to cut trip short. Headed to the airport to fly standby for the return trip I had already paid for (yes I understand prices vary with demand etc). Was told there is no standby and that I would need to pay for, despite what it's called by the company, what amounts to a new ticket. And surprise surprise, there turned out to be dozens of empty seats on that flight. To say nothing of the sleazy third and fourth party resellers, the flight/ticket insurance I elected and thought I had paid for that mysteriously wasn't there when I needed it before I left, and on and on with third world sleazy management decisions. The inflight coffee (that I had to pay for) was very good though.

Inbound plane was on time and flight departed on time with no issues while boarding.

After boarding and un-boarding twice over 6+hours, the flight was canceled.

The Boarding process in Denver was chaotic, and since the line was so long, we were lined up very far from the gate. If there were any announcements from the gate staff, we didn't hear them. The flight attendants were spectacular. The only negative part of the flight was sitting by a 2 1/2 year old who was unruly and unfortunately had parents that matched his behaviors. Also, the restaurants in Denver on the E concourse, they didn't have food (passengers could only order 1 item on the entire menu) or the restaurants had 12-14 people waiting for orders to be prepared and another 6 people waiting to order. If you have a layover in Denver and need to grab food, be prepared to visit the shops with pre-packaged sandwiches, or you can visit another concourse but it may take a while to transit throughout the airport.

30 minute delay due to boarding and settling of a family.

I have come to accept Frontier as an absolute no-frills airline, paying for everything I want. A 4.5-hour flight should provide me with a complimentary beverage—rather, $4.9x for a soda. Or a bottle of water ought to be extended at no cost. 4 beers are on the menu, but only 1 type of beer is available (at $9.95). Also, so many restrictions to using a voucher from Barclay‘s Credit Card. Finally, try to reach a live agent for Frontier- impossible!

Flight was fine, but the legroom between seats for taller passengers is very tight and bad on the knees. I t is very hard to find an angle, that works, especially on a long flight!!!

More options for your flight from St. Louis to Maryland

Complete your trip to Maryland with a hotel stay or car rental