$611 Cheap Flights to St. Louis
One-way
Departing from
Bangkok
Going to
St. Louis, United States
St. Louis (STL)
United States • December, 2025
83% AI deal score
$8,750 $3,467
St. Louis (STL)
United States • April, 2026
82% AI deal score
$1,770 $1,221
Top Cheap Flight Deals to St. Louis
Recent round-trip flight deals to St. Louis
Wed, Dec 10 - Fri, Jan 9
Cheapest
Bangkok (BKK) - St. Louis (STL)
Korean Air airlines • 2 stops • Seoul (ICN), Atlanta (ATL)
St. Louis (STL) - Bangkok (BKK)
Lufthansa airlines • 1 stop • Frankfurt (FRA)
$1,750
$2,313
+$563
32%
Tue, Dec 16 - Fri, Jan 9
Bangkok (BKK) - St. Louis (STL)
Cathay Pacific airlines • 2 stops • Hong Kong (HKG), Chicago (ORD)
St. Louis (STL) - Bangkok (BKK)
Lufthansa airlines • 1 stop • Frankfurt (FRA)
$1,750
$2,401
+$651
37%
Sat, Dec 6 - Wed, Dec 31
Bangkok (BKK) - St. Louis (STL)
Cathay Pacific airlines • 2 stops • Hong Kong (HKG), Los Angeles (LAX)
St. Louis (STL) - Bangkok (BKK)
Lufthansa airlines • 1 stop • Frankfurt (FRA)
$1,750
$2,441
+$691
39%
The cheapest time to fly to St. Louis
Ready to jet to St. Louis on a budget? Check out these popular routes with surprisingly cheap fares (one-way prices):
Last-Minute Flights to St. Louis
Need to get to St. Louis ASAP? Even if you're booking a flight on short notice, there are often last-minute deals available:
Next 2 weeks deals
Last Minute Flight Deals!
We found deals as low as $2441 that depart to St. Louis over the next two weeks.
⌛ Last-Minute
Bangkok - STL
A great last-minute steal for a cross-country flight.
Found 1 week ago
$2441
round-trip
Facts About Flights to St. Louis
To help you plan your journey, here are some quick St. Louis flight facts and tips.
St. Louis city airports
St. Louis Lambert International Airport (STL) is the primary airport serving the St. Louis metropolitan area, offering a wide range of domestic and international flights. Conveniently located just 14 miles northwest of downtown St. Louis, STL provides easy access to the city's attractions and business centers. The airport features two terminals, with Terminal 1 primarily serving domestic carriers and Terminal 2 hosting Southwest Airlines. Passengers can enjoy a variety of amenities, including restaurants, shops, and free Wi-Fi throughout the terminals. With multiple parking options and efficient public transportation links, St. Louis Lambert International Airport ensures a smooth travel experience for visitors to the Gateway City.
Pro tip: search “St. Louis (Any)” to see fares to all St. Louis airports – sometimes one is cheaper than the others on your dates.
Insights for flights to St. Louis
Cheapest airport
MidAmerica St. Louis Airport (BLV)
Looking to save some serious dough on your flight to the St. Louis area? MidAmerica St. Louis Airport (BLV) in Mascoutah, Illinois, is often the unsung hero of budget travel, located about 30 miles east of downtown St. Louis, BLV offers a no-frills, less crowded alternative, primarily served by Allegiant Air, which translates to potential savings for savvy travelers willing to venture a bit outside the city center.
Nonstop vs. 1-stop
20+ cities
While St. Louis isn't a major hub, it's a secondary airport that connects you to over 20 cities, with popular routes to destinations like Denver, Chicago, and Charlotte.
Number of airlines
10+ airlines
St. Louis is served by over 10 airlines, with popular choices including full-service carriers like American, Delta, and United, plus low-cost options such as Southwest and Frontier.
STL Airport Deal Stats
Current most discounted routes
Avg. most discounted routes (last 3 months)
STL airport insights
Best days to catch a deal
Tue, Mon
Based on the data, Thursday has the most occurrences of the cheapest flight deals for St. Louis Lambert International Airport. Saturday has the fewest occurrences of the cheapest flight deals.
Avg. deal survival time
8.9 hours
Deals from St. Louis Lambert International Airport typically last for around 8.9 hours. This means you should book quickly if you find a deal you like!
Rare deal frequency
5 deals
We found 5 rare deals for flights departing from St. Louis Lambert International in the past month. These rare deals had an AI Deal Score of 90+, and usually are mistake fares, special promotions or ultra-discounts.
Average price drop
-70%
The average price drop for flights to St. Louis Lambert International Airport is 70.4%, indicating a high potential for finding discounted fares. Travelers looking to fly into this airport can save significantly by monitoring price fluctuations and booking when prices drop.
Next 4 weeks: deal forecast
St. Louis Flight Forecast (Next Month)
Based on current trends, flight prices to St. Louis Lambert International are expected to remain stable over the next month. There are no significant price drops or increases anticipated at this time.
Top 5 biggest price drops (last 3 months)
Found on November 11
Everett - STL
$925 → $65
93%
Found on November 11
Bellingham - STL
$850 → $109
87%
Found on November 10
Liverpool - STL
$3,725 → $715
81%
Found on November 11
Tobago - STL
$2,175 → $406
81%
Found on November 11
Plattsburgh - STL
$730 → $153
79%
Check these nearby airports too
Looking for more options? These airports near STL sometimes drop rare deals too:
MidAmerica St. Louis (BLV)
~6 rare deals/month
University of Illinois Willard (CMI)
~11 rare deals/month
Abraham Lincoln Capital (SPI)
~9 rare deals/month
If you’re flexible with departure cities, it’s worth keeping an eye on nearby airports — especially BLV and CMI for long-haul deal surprises.
When Is the Best Time to Fly to St. Louis
Timing is everything when hunting for cheap flights. Here are data-backed insights on the best times to fly to St. Louis:
Cheapest month
January
Cheapest month
January is typically the cheapest month to fly to St. Louis. You can explore the city's awesome indoor attractions, like the City Museum or the Saint Louis Art Museum, without breaking the bank. Plus, you might even catch a beautiful snowfall over the Gateway Arch!
Best day to book
Tuesday
Best day to book
Booking your flight on a Tuesday can save you some serious cash! Airlines often release deals early in the week, so keep an eye out. Snagging a Tuesday flight deal could leave you with more money for toasted ravioli and gooey butter cake – yum!
Cheapest days to fly
Wednesday
Cheapest days to fly
Flying on a Wednesday is often the cheapest option. Mid-week flights tend to be less popular, which means airlines drop prices to fill those seats. You can enjoy all the attractions of St. Louis, like the Anheuser-Busch Brewery or the Missouri Botanical Garden, with a little extra spending money.
Advance booking sweet spot
2 Months
Advance booking sweet spot
The sweet spot for booking flights to St. Louis is about 2 months in advance. This gives you a good balance between availability and price. Booking ahead can help you lock in the best deals before they disappear faster than a Cardinals home run!
St. Louis Airports & Ground Transportation
One big question for travelers is which St. Louis airport to fly into. Here’s a quick guide to St. Louis’s airports and how to get to the city from each:
St. Louis Lambert International Airport (STL)
St. Louis Lambert International Airport, or simply Lambert, is the primary airport serving the St. Louis metropolitan area. With its iconic terminal designed, it offers a variety of amenities including shops, restaurants, and lounges to make your travel experience more enjoyable. Conveniently located just 14 miles northwest of downtown St. Louis, Lambert provides easy access to the city via MetroLink light rail, taxis, and ride-sharing services. The airport serves as a hub for Southwest Airlines, connecting St. Louis to destinations nationwide. Whether you're arriving or departing, Lambert aims to provide a seamless travel experience.
Tip: Arrive early to explore the airport's aviation history exhibit and grab a bite at one of the local eateries!
Other airports
Okay, buckle up, travel enthusiasts! While St. Louis has its own fantastic Lambert International Airport, keep your eyes peeled for nearby options like MidAmerica St. Louis Airport (BLV) in Mascoutah, Illinois. BLV could offer tempting deals, but remember, the journey to downtown St. Louis is a bit longer, so weigh those savings against travel time and transportation costs, like a rental car or pre-booked shuttle.
What to Do in St. Louis
St. Louis isn’t just about getting there – it’s about enjoying the country once you arrive! Here are some top things to do in St. Louis, organized by interest:
Sightseeing & landmarks
Get ready to feast your eyes on the iconic Gateway Arch, a towering monument that symbolizes westward expansion! Explore the City Museum, a quirky architectural marvel, or wander through the historic Lafayette Square, lined with stunning Victorian homes. St. Louis is a city where history and architectural wonders collide!
Arts & culture
Immerse yourself in the vibrant arts scene of St. Louis! Visit the Saint Louis Art Museum, home to diverse collections spanning centuries and cultures, or catch a Broadway show at the Fabulous Fox Theatre, a dazzling masterpiece of design. For a more intimate experience, explore the many local galleries and theaters that showcase the city's creative spirit.
Food & nightlife
Prepare your taste buds for a culinary adventure in St. Louis! Indulge in the city's famous toasted ravioli, a local delicacy, or savor the smoky flavors of St. Louis-style barbecue. As the sun sets, the city comes alive with a vibrant nightlife, offering everything from cozy pubs to trendy cocktail bars and live music venues.
Shopping & fashion
Shop 'til you drop in the diverse shopping districts of St. Louis! Explore the unique boutiques and antique shops in the Central West End, or head to the upscale Galleria for designer brands and department stores. From vintage finds to cutting-edge fashion, St. Louis has something to satisfy every style and budget.
Events in St. Louis This Month
the english beat
Get your tickets to see The English Beat live at City Winery St. Louis on November 8th, 2025, at 7:30 PM.
norman brown
Don't miss Norman Brown performing live at City Winery St. Louis on November 9th, 2025, at 5:00 PM. Secure your tickets now!
josh ritter
Tickets are now available for Josh Ritter at The Sovereign in St. Louis on November 6th, 2025, at 8:00 PM.
joshua radin
Get your tickets to see Joshua Radin perform live at City Foundry STL in St. Louis, Missouri, on November 4th, 2025.
what's your spiritual footprint? (free event)
Many believe that as long as we’re not harming anyone, we have the freedom to do as we please. But is simply 'doing no harm' enough? Should we actively strive to 'do good' and contribute positively to society and the well-being of others?
St. Louis Weather
Weather in St. Louis
Wed, Nov 12
0%
19° 3°
0%
Thu, Nov 13
Frequently Asked Questions About Flights to St. Louis
Pro Tips for Finding Cheap Flights to St. Louis
Finally, to wrap up, here’s a cheat sheet of pro tips that experienced travelers use to save on St. Louis flights:
Be Flexible With Your Dates: Flying on weekdays or during the off-season can lead to significant savings. Mid-week flights are often cheaper than weekend flights because fewer people want to travel then.
Set Up Price Alerts: Use RatePunk to set up price alerts for flights to St. Louis! You'll be notified when prices drop, ensuring you snag the best deal before anyone else. Don't miss out on potential savings!
