HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news

Cheap flights from Baltimore to St. Louis (BWI - STL) from $73

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 7/15. 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.
BWI — STL
Jun 4 — Jun 111
From?
To?
Tue 6/4
Tue 6/11
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

The best prices from Baltimore/Washington to Lambert-St Louis are usually found in March or October, booked 34 days in advance, depart on a Wednesday or Tuesday and return on a Tuesday

Cheap flight deals from Baltimore to St. Louis

Discover tips and strategies to find the most affordable flight options for your journey from Baltimore (BWI) to St. Louis (STL). 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 May 30, 2024.

Popular in

December

Cheapest in

March

Round-trip from

$319

One-way from

$141
High demand for flights, 22% potential price rise
Search Deals
Best time to find cheap flights, 34% potential price drop
Search Deals
From Baltimore/Washington to Lambert-St Louis
Search Deals
One-way flight from Baltimore/Washington to Lambert-St Louis
Search Deals

What is the cheapest day to fly round-trip from Baltimore to St. Louis?

Users have found that leaving on a Tuesday can be a cost-effective option. It’s possible to save up to 49% on your flight compared to booking on days when demand is much higher.

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

To save on the cost of your flight from Baltimore to St. Louis, book at least 45 days before your planned departure. Booking around this time can save you about 147% on the cost of this flight compared to booking a flight leaving this week. We have found prices from $408 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as $470.

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

January is one of the best times of the year to fly to St. Louis from Baltimore. Prices for January average $329 per person but you can even find prices for as low as $130. The most expensive prices can be found in the month of May. Opting for a January flight can save you 17% on your journey compared to booking in May

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

One of the essential ways to save on airfare from Baltimore to St. Louis is to remain as flexible as possible. Flights that are at noon tend to be the most expensive. A flight in the evening could potentially save you up to 55% on airfare.

Cheap Frontier flights from Baltimore to St. Louis

Explore cheap flight options specifically provided by Frontier for the route between Baltimore and St. Louis. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 2,784,634 searches. Data last updated May 30, 2024.
Find some of the cheapest Frontier flights traveling from Baltimore to St. Louis. It's recommended that users confirm their flight details before booking.
Wed 6/58:38 amBWI - STL
1 stop23h 29mFrontier
Tue 6/117:44 pmSTL - BWI
1 stop11h 03mFrontier
Deal found 5/29$150
Mon 6/108:38 amBWI - STL
1 stop23h 29mFrontier
Tue 6/117:44 pmSTL - BWI
1 stop11h 03mFrontier
Deal found 5/29$164
Thu 6/61:39 pmBWI - STL
1 stop21h 01mFrontier
Mon 6/106:16 pmSTL - BWI
1 stop19h 25mFrontier
Deal found 5/29$173
Thu 6/61:39 pmBWI - STL
1 stop21h 01mFrontier
Sun 6/97:44 pmSTL - BWI
1 stop11h 03mFrontier
Deal found 5/30$175
Mon 6/107:09 pmBWI - STL
2 stops16h 33mFrontier
Wed 6/128:02 pmSTL - BWI
1 stop15h 37mFrontier
Deal found 5/29$199
Mon 6/107:09 pmBWI - STL
2 stops16h 33mFrontier
Tue 6/117:44 pmSTL - BWI
1 stop11h 03mFrontier
Deal found 5/30$202
Sat 6/228:15 pmBWI - STL
1 stop11h 52mFrontier
Sun 6/237:44 pmSTL - BWI
1 stop11h 03mFrontier
Deal found 5/29$215
Sat 6/228:15 pmBWI - STL
1 stop11h 52mFrontier
Sun 6/237:44 pmSTL - BWI
1 stop11h 03mFrontier
Deal found 5/29$217
Sat 6/88:15 pmBWI - STL
1 stop11h 52mFrontier
Tue 6/117:44 pmSTL - BWI
1 stop11h 03mFrontier
Deal found 5/29$219

Cheap Spirit Airlines flights from Baltimore to St. Louis

Explore cheap flight options specifically provided by Spirit Airlines for the route between Baltimore and St. Louis. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 2,784,634 searches. Data last updated May 30, 2024.
To aid your search, here are some of the cheapest Spirit Airlines flights we've found from Baltimore to St. Louis. Check back soon if you're not seeing flights that suit your needs.
Mon 6/1010:45 pmBWI - STL
2 stops13h 12mSpirit Airlines
Tue 6/113:23 pmSTL - BWI
1 stop16h 12mSpirit Airlines
Deal found 5/29$172
Mon 6/105:50 amBWI - STL
3 stops30h 07mSpirit Airlines
Tue 6/113:23 pmSTL - BWI
1 stop16h 12mSpirit Airlines
Deal found 5/29$174
Mon 6/1010:45 pmBWI - STL
1 stop16h 38mSpirit Airlines
Thu 6/138:12 pmSTL - BWI
2 stops19h 19mSpirit Airlines
Deal found 5/29$186
Mon 7/110:45 pmBWI - STL
1 stop16h 38mSpirit Airlines
Tue 7/93:23 pmSTL - BWI
1 stop16h 17mSpirit Airlines
Deal found 5/29$187
Sat 6/158:33 pmBWI - STL
1 stop20h 59mSpirit Airlines
Tue 6/183:23 pmSTL - BWI
1 stop16h 12mSpirit Airlines
Deal found 5/29$189
Mon 6/1010:45 pmBWI - STL
2 stops13h 12mSpirit Airlines
Tue 6/113:23 pmSTL - BWI
3 stops33h 04mSpirit Airlines
Deal found 5/29$190
Mon 7/1510:40 pmBWI - STL
1 stop11h 46mSpirit Airlines
Sat 7/2011:34 amSTL - BWI
1 stop11h 25mSpirit Airlines
Deal found 5/29$192
Mon 6/105:50 amBWI - STL
3 stops30h 07mSpirit Airlines
Tue 6/113:23 pmSTL - BWI
3 stops33h 04mSpirit Airlines
Deal found 5/29$193
Sat 6/298:33 pmBWI - STL
1 stop20h 59mSpirit Airlines
Tue 7/911:57 amSTL - BWI
1 stop23h 28mSpirit Airlines
Deal found 5/29$194

Cheap Baltimore to St. Louis flights in May & June 2024

Find cheap flight options from Baltimore to St. Louis specifically for the months of May and June 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 2,784,634 searches. Prices were last updated on May 30, 2024.
The lowest fares we've come across on flights traveling from Baltimore to St. Louis in May and June 2024. If these deals don't appeal to you, be sure to come back soon for more options.
Wed 6/58:38 amBWI - STL
1 stop23h 29mFrontier
Tue 6/117:44 pmSTL - BWI
1 stop11h 03mFrontier
Deal found 5/29$150
Mon 6/108:38 amBWI - STL
1 stop23h 29mFrontier
Tue 6/117:44 pmSTL - BWI
1 stop11h 03mFrontier
Deal found 5/29$164
Mon 6/1010:45 pmBWI - STL
2 stops13h 12mSpirit Airlines
Tue 6/113:23 pmSTL - BWI
1 stop16h 12mSpirit Airlines
Deal found 5/29$172
Thu 6/61:39 pmBWI - STL
1 stop21h 01mFrontier
Mon 6/106:16 pmSTL - BWI
1 stop19h 25mFrontier
Deal found 5/29$173
Mon 6/105:50 amBWI - STL
3 stops30h 07mSpirit Airlines
Tue 6/113:23 pmSTL - BWI
1 stop16h 12mSpirit Airlines
Deal found 5/29$174
Thu 6/61:39 pmBWI - STL
1 stop21h 01mFrontier
Sun 6/97:44 pmSTL - BWI
1 stop11h 03mFrontier
Deal found 5/30$175
Thu 5/308:34 pmBWI - STL
1 stop11h 34mFrontier
Tue 6/47:44 pmSTL - BWI
1 stop11h 03mFrontier
Deal found 5/28$179
Mon 6/1010:45 pmBWI - STL
1 stop16h 38mSpirit Airlines
Thu 6/138:12 pmSTL - BWI
2 stops19h 19mSpirit Airlines
Deal found 5/29$186
Thu 5/308:34 pmBWI - STL
1 stop11h 34mFrontier
Thu 6/67:44 pmSTL - BWI
1 stop11h 03mFrontier
Deal found 5/29$189

Baltimore to St. Louis 2024 flight deals

Discover exclusive flight deals for travel between Baltimore and St. Louis in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 2,784,634 searches. Data last updated May 30, 2024.
The lowest fares we've come across on flights traveling from Baltimore to St. Louis in May and June 2024. If these deals don't appeal to you, be sure to come back soon for more options.
Sat 9/149:41 amBWI - STL
1 stop8h 49mSpirit Airlines
Tue 9/172:35 pmSTL - BWI
1 stop5h 46mSpirit Airlines
Deal found 5/29$125
Thu 9/1211:30 amBWI - STL
1 stop7h 00mSpirit Airlines
Tue 9/172:35 pmSTL - BWI
1 stop5h 46mSpirit Airlines
Deal found 5/30$142
Tue 8/276:10 amBWI - STL
1 stop8h 27mMultiple Airlines
Thu 8/296:42 pmSTL - BWI
1 stop13h 10mMultiple Airlines
Deal found 5/29$143
Wed 6/58:38 amBWI - STL
1 stop23h 29mFrontier
Tue 6/117:44 pmSTL - BWI
1 stop11h 03mFrontier
Deal found 5/29$150
Fri 9/1310:40 amBWI - STL
1 stop12h 34mSpirit Airlines
Tue 9/172:35 pmSTL - BWI
1 stop5h 46mSpirit Airlines
Deal found 5/29$152
Thu 9/511:30 amBWI - STL
1 stop7h 00mSpirit Airlines
Sun 9/86:24 pmSTL - BWI
1 stop13h 18mSpirit Airlines
Deal found 5/29$156
Sun 9/2210:40 amBWI - STL
1 stop8h 49mSpirit Airlines
Wed 9/254:31 pmSTL - BWI
1 stop23h 41mSpirit Airlines
Deal found 5/29$163
Mon 6/108:38 amBWI - STL
1 stop23h 29mFrontier
Tue 6/117:44 pmSTL - BWI
1 stop11h 03mFrontier
Deal found 5/29$164
Thu 9/1211:30 amBWI - STL
1 stop7h 00mSpirit Airlines
Mon 9/164:31 pmSTL - BWI
1 stop23h 41mSpirit Airlines
Deal found 5/30$165

Baltimore to St. Louis flights leaving soon

Find last-minute flight options from Baltimore to St. Louis 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 2,784,634 searches. Data last updated May 30, 2024.
Consider one of these great deals we found on last-minute flights from Baltimore to St. Louis. Users should examine the flight details to ensure there are no surprises.
Wed 6/58:38 amBWI - STL
1 stop23h 29mFrontier
Tue 6/117:44 pmSTL - BWI
1 stop11h 03mFrontier
Deal found 5/29$150
Thu 6/61:39 pmBWI - STL
1 stop21h 01mFrontier
Mon 6/106:16 pmSTL - BWI
1 stop19h 25mFrontier
Deal found 5/29$173
Thu 6/61:39 pmBWI - STL
1 stop21h 01mFrontier
Sun 6/97:44 pmSTL - BWI
1 stop11h 03mFrontier
Deal found 5/30$175
Thu 6/61:39 pmBWI - STL
1 stop21h 01mMultiple Airlines
Thu 6/138:12 pmSTL - BWI
1 stop27h 38mMultiple Airlines
Deal found 5/29$200
Sat 6/88:15 pmBWI - STL
1 stop11h 52mFrontier
Tue 6/117:44 pmSTL - BWI
1 stop11h 03mFrontier
Deal found 5/29$219
Wed 6/57:09 pmBWI - STL
2 stops16h 33mFrontier
Tue 6/117:44 pmSTL - BWI
1 stop11h 03mFrontier
Deal found 5/29$224
Thu 6/66:30 amBWI - STL
2 stops31h 20mMultiple Airlines
Thu 6/136:22 pmSTL - BWI
1 stop13h 13mMultiple Airlines
Deal found 5/29$243
Sat 6/88:15 pmBWI - STL
1 stop11h 52mFrontier
Thu 6/137:44 pmSTL - BWI
1 stop11h 03mFrontier
Deal found 5/30$246
Wed 6/510:45 pmBWI - STL
1 stop19h 43mSpirit Airlines
Tue 6/113:23 pmSTL - BWI
1 stop16h 12mSpirit Airlines
Deal found 5/30$261

One-way flights to St. Louis from Baltimore

Search for one-way flight options from Baltimore to St. Louis. 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 2,784,634 searches. Data last updated May 30, 2024.
Users traveling one-way from Baltimore to St. Louis can select one of these great deals. Those needing a return flight from Baltimore to St. Louis can use the search form above.
Mon 7/1510:40 pmBWI - STL
1 stop11h 46mSpirit Airlines
Deal found 5/29$73
Wed 6/58:38 amBWI - STL
1 stop23h 29mFrontier
Deal found 5/29$80
Thu 6/61:39 pmBWI - STL
1 stop21h 01mFrontier
Deal found 5/29$90
Tue 7/26:30 amBWI - STL
2 stops8h 53mSpirit Airlines
Deal found 5/30$97
Tue 6/185:45 amBWI - STL
1 stop6h 12mSpirit Airlines
Deal found 5/30$99
Tue 6/186:00 amBWI - STL
2 stops9h 23mSpirit Airlines
Deal found 5/28$101
Tue 8/137:20 pmBWI - STL
1 stop16h 26mSpirit Airlines
Deal found 5/29$102
Tue 7/26:45 amBWI - STL
1 stop8h 38mSpirit Airlines
Deal found 5/30$103
Mon 6/1710:45 pmBWI - STL
2 stops13h 12mSpirit Airlines
Deal found 5/29$106

Find flights from Baltimore to St. Louis within your budget

Customize your flight search to find flights from Baltimore to St. Louis 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 2,784,634 searches. Data last updated May 30, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$143 - $332

Route

Depart

Return

Price

Baltimore/WashingtonLambert-St Louis

BWI - STL

BWISTL

Baltimore/Washington

Tue 8/27

1 stop8h 27m

Lambert-St Louis

Thu 8/29

1 stop13h 10m

$143

Baltimore/WashingtonLambert-St Louis

BWI - STL

BWISTL

Baltimore/Washington

Wed 6/5

1 stop23h 29m

Lambert-St Louis

Tue 6/11

1 stop11h 03m

$150

Baltimore/WashingtonLambert-St Louis

BWI - STL

BWISTL

Baltimore/Washington

Mon 6/10

1 stop23h 29m

Lambert-St Louis

Tue 6/11

1 stop11h 03m

$164

Baltimore/WashingtonLambert-St Louis

BWI - STL

BWISTL

Baltimore/Washington

Mon 6/10

2 stops13h 12m

Lambert-St Louis

Tue 6/11

1 stop16h 12m

$172

Baltimore/WashingtonLambert-St Louis

BWI - STL

BWISTL

Baltimore/Washington

Thu 6/6

1 stop21h 01m

Lambert-St Louis

Mon 6/10

1 stop19h 25m

$173

Baltimore/WashingtonLambert-St Louis

BWI - STL

BWISTL

Baltimore/Washington

Mon 6/10

3 stops30h 07m

Lambert-St Louis

Tue 6/11

1 stop16h 12m

$174

Baltimore/WashingtonLambert-St Louis

BWI - STL

BWISTL

Baltimore/Washington

Mon 7/15

1 stop11h 46m

Lambert-St Louis

Wed 7/17

1 stop18h 24m

$184

Baltimore/WashingtonLambert-St Louis

BWI - STL

BWISTL

Baltimore/Washington

Wed 6/26

1 stop10h 33m

Lambert-St Louis

Wed 7/3

1 stop7h 23m

$317

Baltimore/WashingtonLambert-St Louis

BWI - STL

BWISTL

Baltimore/Washington

Sun 6/30

1 stop4h 10m

Lambert-St Louis

Wed 7/10

1 stop5h 44m

$332

Flights are sorted by cheapest first

Deals found on 5/29

How far ahead should I book a flight from Baltimore to St. Louis?

Use this chart to determine the optimal time to book a round-trip flight from Baltimore to St. Louis. Price data was last updated on May 24, 2024.
To ensure you get the cheapest price possible for a flight from Baltimore to St. Louis, you should look to book at least 34 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.
Search Deals

What is the cheapest day to fly from Baltimore to St. Louis?

Use this chart to determine the cheapest time to fly round-trip from Baltimore to St. Louis. Price data was last updated on May 26, 2024.
Morning
Noon
Afternoon
Evening
All times are departure.
Travelers seeking maximum savings on their Baltimore to St. Louis flight should consider departing on Wednesday evenings when fares are most often at their lowest. Saturday at noon flights should be avoided if possible as fares are typically the most expensive at this time.
Search Deals

Best time to book a flight from Baltimore to St. Louis

Have a flexible travel schedule? Discover the best time to fly to St. Louis from Baltimore 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 St. Louis by month

Plan your trip to St. Louis by taking into account the average temperature and rainfall totals by month.

STL

Temperature

32 - 80.6 °F

Reviews of airlines servicing St. Louis

Get insights into the airlines that provide service to St. Louis. 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 St. Louis. Reviews last updated May 30, 2024.
See what other customers who have flown with Frontier, Spirit Airlines and American Airlines from Baltimore to St. Louis have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
10,457 reviews
Check prices

Entertainment

8.0

Comfort

7.9

Food

7.4

Boarding

8.2

Overall

8.0

Crew

8.6

Reviews

1 / 10

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.

Delta
8.0
Very good
10,457 reviews
Delta
8.0
Very good
10,457 reviews
Check prices

Entertainment

8.0

Comfort

7.9

Food

7.4

Boarding

8.2

Overall

8.0

Crew

8.6

Reviews

1 / 10

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.

American Airlines
7.3
Good
14,284 reviews
Delta
8.0
Very good
10,457 reviews
Check prices

Entertainment

8.0

Comfort

7.9

Food

7.4

Boarding

8.2

Overall

8.0

Crew

8.6

Reviews

1 / 10

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.

Sun Country Air
7.2
Good
597 reviews
Delta
8.0
Very good
10,457 reviews
Check prices

Entertainment

8.0

Comfort

7.9

Food

7.4

Boarding

8.2

Overall

8.0

Crew

8.6

Reviews

1 / 10

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.

Spirit Airlines
6.4
Okay
8,616 reviews
Delta
8.0
Very good
10,457 reviews
Check prices

Entertainment

8.0

Comfort

7.9

Food

7.4

Boarding

8.2

Overall

8.0

Crew

8.6

Reviews

1 / 10

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.

Frontier
6.3
Okay
4,016 reviews
Delta
8.0
Very good
10,457 reviews
Check prices

Entertainment

8.0

Comfort

7.9

Food

7.4

Boarding

8.2

Overall

8.0

Crew

8.6

Reviews

1 / 10

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.

Related info for your journey

Find useful and relevant information for your journey from Baltimore to St. Louis. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airports do I use to fly from Baltimore to St. Louis?

    Lambert-St Louis is the airport most travelers will use when flying to St. Louis from Baltimore/Washington. Booking flights from Baltimore/Washington (BWI) to Lambert-St Louis (STL) should be relatively easy as there are 4 daily flights to St. Louis from 6 different airlines. 4h 38m is how long a flight from Baltimore to Lambert-St Louis will take if you book a nonstop flight.

  • Can I find flights from Baltimore to St. Louis for under $200 on Cheapflights?

    Yes, there are multiple flights from Baltimore to St. Louis for under $200. The cheapest flight booked recently is on Multiple Airlines for just $143, but on average you can expect to pay $183.

  • Are there last-minute flights available from Baltimore to St. Louis for under $200?

    There are currently 20+ open flights from Baltimore to St. Louis within the next 7 days for less than $200.

  • What days are nonstop flights available from Baltimore to St. Louis?

    Days when nonstop flights are available for this flight are: Friday, Saturday.

  • How many flights depart from Baltimore to St. Louis on average per day?

    On average 8 flights depart from Baltimore to St. Louis per day.
    Morning (6am - Noon) - 38% of flight departures
    Afternoon (Noon - 6pm) - 38% of flight departures
    Evening (6pm - Midnight) - 25% of flight departures

  • How long is the flight from Baltimore to St. Louis?

    For as low as $150, Frontier can have you in St. Louis from Baltimore in 13h 12m. Airlines will cover a distance of 739 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 Baltimore to St. Louis round-trip?

    Flying on Frontier is currently your cheapest option to St. Louis, with prices starting at $150. Another option worth looking into is Spirit Airlines, starting at $172 round trip. Users have found that Frontier is 58% cheaper than the other options available to this destination.

  • What are the cheapest flights from Baltimore to St. Louis?

    Looking for the cheapest flight from Baltimore to St. Louis? While on average our users pay $346, our data indicates the cheapest price to be $346. The most popular route (Baltimore/Washington - Lambert-St Louis), is priced around $125.

  • What does BWI to STL mean?

    BWI stands for Baltimore/Washington Airport, while STL stands for Lambert-St Louis Airport. These codes are often called IATA codes, a set of identifiers established by IATA (International Air Transport Association) that is widely used by airlines and the aviation industry.

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

    The amount of baggage you can bring on your Baltimore to St. Louis 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 Baltimore to St. Louis with specific airlines?

    Yes, Cheapflights allows you to browse and filter Baltimore to St. Louis 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 Baltimore to St. Louis that include hotel bookings?

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

  • How can I find direct flights from Baltimore to St. Louis?

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

  • Can I find deals for business class flights from Baltimore to St. Louis?

    Yes. Cheapflights offers flight deals from Baltimore to St. Louis 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 Baltimore to St. Louis that allow pets onboard?

    Many airlines flying from Baltimore to St. Louis 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 Baltimore to St. Louis?

    Yes, you can often find last-minute deals on Baltimore to St. Louis 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 Baltimore to St. Louis flight deals updated?

    The Baltimore to St. Louis flight deals you see on this page were last updated on 5/30.

  • What are the most popular airlines that fly from Baltimore to St. Louis?

    Before booking your flight from Baltimore to St. Louis check out the most popular airlines for this route: American Airlines, Delta or Frontier.

  • What is the cheapest month to book a flight from Baltimore to St. Louis?

    Currently, September is the cheapest month in which you can book a flight from Baltimore to St. Louis (average of $319). Flying from Baltimore to St. Louis in July is currently the most expensive (average of $366). 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Baltimore to St. Louis
See prices for flight routes from nearby airports that may be better suited for you.

Dulles Intl to St. Louis flights
Dulles Intl to Kansas City flights
Reagan-National to St. Louis flights
Reagan-National to Kansas City flights
Philadelphia to St. Louis flights
Baltimore to Kansas City flights
Philadelphia to Kansas City flights
Dulles Intl to Springfield flights
Baltimore to Springfield flights
Reagan-National to Springfield flights
Philadelphia to Springfield flights
Philadelphia to Columbia flights
Baltimore to Joplin flights
Reagan-National to Joplin flights
Baltimore to Columbia flights
Dulles Intl to Joplin flights
Dulles Intl to Columbia flights
Reagan-National to Columbia flights
Philadelphia to Branson flights
Philadelphia to Joplin flights
Baltimore to Branson flights
Dulles Intl to Branson flights
Baltimore to Quincy flights
Baltimore to Fort Leonard Wood flights
Baltimore to Kirksville flights
Dulles Intl to Kirksville flights
Reagan-National to Fort Leonard Wood flights
Reagan-National to Branson flights
Dulles Intl to Fort Leonard Wood flights
Philadelphia to Cape Girardeau flights

Top 5 airlines flying from Baltimore to St. Louis

Discover the top 5 airlines that operate flights from Baltimore to St. Louis. 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 2,784,634 searches. Data last updated May 30, 2024.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$98Average$172FlexibilityNo cancel feeOn-time62%
Search Frontier flights
Spirit AirlinesCheapest$108Average$182FlexibilityNo cancel feeOn-time65%
Search Spirit Airlines flights
United AirlinesCheapest$174Average$341FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
American AirlinesCheapest$227Average$489FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
DeltaCheapest$257Average$369FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
Hawaii to Kaua'i flights
USA to Sri Lanka flights
Washington, D.C. to Boston flights
Dallas to New Delhi flights
Boise to Seattle flights
Boston to Miami flights
Salt Lake City to Phoenix flights
Houston to Hawaii flights
Boston to Washington, D.C. flights
Denver to Charlotte flights
Miami to Madrid flights
Baltimore to London Stansted Airport flights

Search flights from Baltimore to St. Louis by cabin class

Find flights from Baltimore to St. Louis, based on your preferred cabin class, be it economy, premium economy, business, or first class.
First Class
Business Class
Prem Econ Class
Economy Class

Hourly flight availability from Baltimore to St. Louis

Find hourly flight availability from Baltimore to St. Louis. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated May 30, 2024.
11%of flight departuresEarly morningMidnight to 6 am
35%of flight departuresMorning6 am to noon
37%of flight departuresAfternoonNoon to 6 pm
17%of flight departuresEvening6 pm to midnight
Midnight
6 AM
Noon
6 PM

Weekly flight availability from Baltimore to St. Louis

Explore weekly flight availability from Baltimore to St. Louis. 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 May 30, 2024.
Sunday5daily flights
Monday4daily flights
Tuesday4daily flights
Wednesday4daily flights
Thursday4daily flights
Friday4daily flights
Saturday5daily flights

Book a flight to one of these trending destinations

User searches for flights to these destinations increased 20% or more in the past 90 days compared to other destinations
Flights to Laayoune Hassan I
Flights to Virac
Flights to Figari-Sud Corse
Flights to Edremit/Korfez
Flights to Rhinelander Oneida County
Flights to Girona Costa Brava
Flights to Brainerd Crow Wing County
Flights to Parikia Paros
Flights to Cortez Montezuma County
Flights to Miyakojima Hirara
Flights to Zadar
Flights to Trapani Birgi
Flights to Provincetown
Flights to Oran Es Senia
Flights to Constanţa Mihail Kogalniceanu
Flights to Vava'u Lupepau'U
Flights to Urumqi
Flights to Hakodate
Flights to Naxos
Flights to Dalaman
Flights to Hyannis Barnstable
Flights to Devils Lake
Flights to Bastia Poretta
Flights to Karpathos

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Baltimore to St. Louis?

Cheapflights helps you search for flights from Baltimore to St. Louis via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

Why should you use Cheapflights to find cheap flight tickets from Baltimore to St. Louis?

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Baltimore to St. Louis for you. Better yet — we are completely free to use.

Can Cheapflights find flights from Baltimore to St. Louis with no change fees?

Yes, we can. To see specific flights from Baltimore to St. Louis with no change fees, users can toggle flexible booking options after using the search form above to find flights.

Can Cheapflights notify me if prices for flights from Baltimore to St. Louis become cheaper?

Yes, Cheapflights offers price alerts on Baltimore to St. Louis flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

100% Free
Cheapflights is completely free to use, so you can start saving the moment you arrive.
Book with Flexibility
Our users can plan ahead with confidence and find flights with no change fees
Travel Smart
Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.
View all available airlines