$24 Cheap Flights to St Mary , MO

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Flight deals we found

These prices are lower than our typical predictions for similar flights.
80% less than typical
$219
Roundtrip per traveler
Wed, Jul 3 - Sun, Jul 7
American AirlinesAmerican Airlines
2h 43m
7:36pm
10:19pm
CMH
Nonstop
MIA
Found 3 hours ago
80% less than typical
$189
Roundtrip per traveler
Wed, Jul 3 - Tue, Jul 9
American AirlinesAmerican Airlines
2h 43m
7:36pm
10:19pm
CMH
Nonstop
MIA
Found 2 hours ago
70% less than typical
$341
Roundtrip per traveler
Sun, Jul 7 - Fri, Jul 12
American AirlinesAmerican Airlines
2h 44m
7:26pm
10:10pm
CMH
Nonstop
MIA
Found 3 hours ago
80% less than typical
$195
Roundtrip per traveler
Fri, Jun 14 - Wed, Jun 19
DeltaDelta
4h 25m
8:10pm
12:35am
+1
CMH
1 stop • 1h 4m in ATL
RSW
Found 23 hours ago
80% less than typical
$196
Roundtrip per traveler
Thu, Jun 13 - Wed, Jun 19
American AirlinesAmerican Airlines
7h 50m
6:00am
1:50pm
CMH
1 stop • 3h 18m in PHL
RSW
Found 23 hours ago
80% less than typical
$195
Roundtrip per traveler
Wed, Sep 18 - Mon, Sep 23
American AirlinesAmerican Airlines
3h 51m
7:04am
10:55am
CMH
1 stop • 30m in CLT
RSW
Just found
70% less than typical
$362
Roundtrip per traveler
Wed, Jun 5 - Sun, Jun 9
Alaska AirlinesAlaska Airlines
5h 4m
7:06am
9:10am
CMH
Nonstop
SEA
Found 13 hours ago
50% less than typical
$257
Roundtrip per traveler
Sat, May 25 - Mon, May 27
Alaska AirlinesAlaska Airlines
5h 3m
6:26pm
8:29pm
CMH
Nonstop
SEA
Found 3 hours ago
50% less than typical
$288
Roundtrip per traveler
Fri, May 24 - Mon, May 27
Alaska AirlinesAlaska Airlines
5h 4m
7:06am
9:10am
CMH
Nonstop
SEA
Found 1 hour ago
80% less than typical
$204
Roundtrip per traveler
Thu, Jun 13 - Tue, Jun 18
DeltaDelta
1h 53m
7:12am
9:05am
CMH
Nonstop
JFK
Found 4 hours ago
75% less than typical
$321
Roundtrip per traveler
Fri, May 24 - Mon, May 27
American AirlinesAmerican Airlines
1h 57m
8:30am
10:27am
CMH
Nonstop
JFK
Found 5 hours ago
70% less than typical
$319
Roundtrip per traveler
Fri, May 3 - Sun, May 5
American AirlinesAmerican Airlines
1h 54m
12:57pm
2:51pm
CMH
Nonstop
JFK
Found 11 hours ago
75% less than typical
$249
Roundtrip per traveler
Fri, May 17 - Mon, May 20
UnitedUnited
1h 26m
7:00am
7:26am
CMH
Nonstop
ORD
Just found
75% less than typical
$277
Roundtrip per traveler
Fri, Jun 7 - Sun, Jun 9
UnitedUnited
1h 25m
7:15am
7:40am
CMH
Nonstop
ORD
Found 12 hours ago
70% less than typical
$320
Roundtrip per traveler
Sun, Jun 23 - Wed, Jun 26
UnitedUnited
1h 25m
7:15am
7:40am
CMH
Nonstop
ORD
Found 9 hours ago

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How much is the cheapest flight to St Mary?

Prices were available within the past 7 days and start at $24 for one-way flights and $58 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frontier Airlines
Frontier Airlines
Spirit Airlines
Delta
United

Find Your Flights to St Mary null

Cheap flights to St Mary (null)

Get started finding a cheap flight to St Mary on Expedia by either choosing a deal on this page or entering into the search bar your travel dates, origin airport, and whether you want roundtrip or one-way airfare. You can filter for flexibility, number of stops, airline, and departure/arrival times to find the best flight for you.

We recommend using the ‘Flexible Dates’ calendar at the top of the page to see the price of plane tickets on the surrounding dates. This allows you to pick the cheapest days to fly if your trip allows flexibility and score cheap flight deals to St Mary.

Roundtrip prices range from $58 - $206, and one-ways to St Mary start as low as $24.

Be aware that choosing a non-stop flight can sometimes be more expensive while saving you time. And routes with connections may be available at a cheaper rate.

Airlines that fly to St Mary (null)

You have several options for which airline you choose to travel with to St Mary. There are 10 airlines flying into null: Frontier Airlines, American Airlines, Spirit Airlines, Delta, United. 

Cheap plane tickets may be available from different airlines at different times and with unique terms. It’s best to understand the details of each airline’s offer before judging its value.

For example, if you plan to check a bag or bring a carry-on, check whether the cheap airfare deal includes a baggage allowance. If not, verify whether the baggage fee is higher than the difference of other airline plane ticket deals offering free checked/carry-on baggage in exchange for a slightly higher airfare. 

Additionally, your preferred frequent flyer membership programs may influence your choice of cheap airline. Expedia allows you to enter your membership numbers during checkout to earn points from your airline and Expedia Rewards—all while getting a great deal and planning all your travel in one online platform.

Find the best deals

At Expedia, we source many flight deals from multiple providers, so you can easily find the best deals that are right for you. A great strategy for getting the best deals can be to make sure you book and travel at the optimal times. Airfare to St Mary (null) varies throughout the year based on seasonal demand. You’ll see the lowest rates for roundtrips to null in May and in June for one-ways.

Cancellation & flexibility

To change or cancel eligible flights, go to ‘My Trips’ and navigate to your itinerary. If you booked within the last 24-hours, you might be able to cancel your flight for free. Learn more about flight changes or cancellations from our customer service portal. Some plane tickets are available with no change fees, which you can filter for during your search.

Frequently asked questions

Where can I learn more about changing or canceling my flight to St Mary?
Most flights are free to cancel within 24 hours of making the reservation. However, some flights are non-refundable, and you may receive a flight credit from the airline to use for a future booking. For more information, please visit our Customer Service Portal.
How do I find cheap flights to St Mary that have flexible change policies?
We know that plans can change in a flash, so locking in a flexible airfare with Expedia is always a clever idea. Simply check the “No change fee” box directly under the “Flexible change policies” filter. Your low-cost, flexible flight to St Mary is just a few clicks away.
What is the name of St Mary's airport?
St Mary is served by just one airport, Lambert-St. Louis Intl. Airport (STL).
How many airlines fly to St Mary?
There are 12 air carriers connecting St Mary to 64 airports globally.
How many nonstop flights are there to St Mary?
Planning an amazing St Mary getaway is a cinch when there are 1,371 direct flights every week to choose from.
Where are the most popular flights to St Mary departing from?
Travelers often set off from Chicago, New York and Dallas airports when heading to St Mary.
How long is the flight to St Mary Airport?
If you’re going to St Mary from Chicago, you’ll have a flight time of 1 hour and 15 minutes. Those departing from Queens Village should expect to be airborne for around 2 hours and 51 minutes. From Denver it’s 1 hour and 59 minutes away.
How to book the cheapest flight to St Mary?
We all know those lucky travelers who somehow grab impossibly cheap airfares every time they fly. Would you like to know how to do it for your St Mary vacation? Don’t leave it until the last minute to lock in your flight. Don’t stop there, however. Do some research and see if there are a few airports at your destination. Prices often differ depending on the airport you pick. Be sure to compare fares across air carriers too. Last but not least, another simple way to save some money is be ready to book fast. If you see a good bargain, don’t hold off — snap it up while you can.
How to survive the flight to St Mary?
We’ve rounded up all the info you need to make your flight as enjoyable as possible. Follow our tips and you’ll be zooming through the airport and enjoying St Mary in no time.What to pack in your hand luggage:

  • The secret to having a worry-free flight experience is to pack ahead. First up, the essentials: passport, official ID, cash and medications. Next, take on board items that’ll help keep you busy, like some electronic devices or a juicy novel. You’ll also want to pack your chargers, a neck pillow and a pair of earphones. Last but not least, be sure to squeeze in toiletries like a toothbrush, deodorant and a clean set of clothes.

Do not pack the following items in your hand luggage:

  • While the list of prohibited items differs between air carriers, the general rule to follow is nothing sharp, flammable or explosive. This includes screwdrivers, pocket knives, spray paint and flares. Sporting equipment like bows and arrows, and objects that could injure passengers, such as pepper spray and firearms, won’t be allowed on board either.

What to wear on a flight:

  • The narrow aisles of your aircraft are no fashion runway. Layer up with comfortable clothing and take a sweater as the temperature can drop inside the cabin during long-haul flights. Enclosed, flat shoes are always a good choice too.
  • A condition known as DVT (deep vein thrombosis) is a risk on long-haul flights. It’s the result of blood clots forming due to poor circulation and inactivity. Walking up and down the aisle and doing foot and leg exercises in your seat is a great way to prevent this from happening. Wearing a pair of compression socks also helps reduce your risk.

How to get through airport security fast when flying to St Mary?
The secret is to be well prepared before you reach the airport security gate. That way, you’ll be stepping onto that plane to St Mary in the blink of an eye. Follow these helpful tips and get your trip off to a terrific start:

  • Airport security personnel first need to see that you have a valid ID and matching travel documents before you’re allowed to proceed any further. Have them close by, ready for inspection.
  • The X-ray machine comes next. Remove anything metal on you that is likely to set off the scanner’s alarm. This includes items like earphones or headphones, as well as bulky coats or jackets. They’ll all need to go on the X-ray conveyor belt.
  • Electronic devices like laptops and phones will also have to go on a tray for inspection. Don’t worry, you’ll be back online before you know it.
  • Remove gels and liquids from your carry-on bag. They usually need to be sent through the X-ray machine separately. Each item should be in a container no larger than 3.4 ounces (100 milliliters) and everything must fit in a single quart-size (one liter), clear zip-lock bag.
  • There’s a possibility that you’ll be asked to take your shoes off for scanning, so wearing lightweight sneakers is always a smart idea.
  • Avoid taking prohibited items in your carry-on bag. If you have any sharp or pointed objects, pack them in your checked luggage. They won’t be allowed on board.

Flights to St Mary information
Destination airport
Lambert-St. Louis Intl.
Destination airport IATA code
STL
Destination city name
St. Louis
Roundtrip price
$118

Trending flights to St Mary

Prices were available within the past 7 days and start at $24 for one-way flights and $58 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frontier Airlines
*Available to One Key members.