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$22 Cheap Flights to Sullivan, MO

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Popular airlines to Sullivan

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Today's featured flight deals to Sullivan

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How much is the cheapest flight to Sullivan?

Prices were available within the past 7 days and start at $22 for one-way flights and $46 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frontier Airlines
Southwest Airlines
American Airlines
United
Alaska Airlines

Find the cheapest month to fly from Columbus (CMH) to St. Louis (STL)

From $148 - $387 per traveler.

What you need to know for your flight to Sullivan

Flights to Sullivan at a glance

Traveling to Sullivan is a breeze; you can select from various options, including cheap flights to Sullivan and direct flights. Compare journey times to find the best fit for your budget and schedule, ensuring you’re ready to explore the city's renowned sights and neighborhoods.

  • Major airport near Sullivan: Lambert-St. Louis International Airport (STL)
  • Flights per week: 3,150+ flights arriving at Sullivan airport
  • Number of airlines that fly to Sullivan: around 40+ carriers

Popular airport near Sullivan

Sullivan is a charming city ideal for outdoor adventures and family getaways. Visitors flock to Sullivan for its beautiful scenery, thrilling activities, and romantic spots. A major airport typically connects travelers to this delightful destination, providing convenient access to the surrounding attractions.

  • Lambert-St. Louis International Airport (STL): Situated in St. Louis County, Missouri, approximately 57 miles from Sullivan, this airport caters to both domestic and international travelers. It provides connections to around 210 domestic destinations and 110 international locations. For enhanced comfort, passengers can opt for upgrades to first class, premium economy, or business class service, depending on the airline and route. Major airlines operating here include Southwest Airlines, American Airlines, and Delta.

Top routes to Sullivan

  • New York (JFK/LGA) to Sullivan (STL), with one-way fares starting at around $90
  • Las Vegas (LAS) to Sullivan (STL), with one-way flights starting at around $60
  • Orlando (MCO) to Sullivan (STL), with one-way fares starting at around $45
  • Denver (DEN) to Sullivan (STL), with one-way flights starting at around $45
  • Los Angeles (LAX) to Sullivan (STL), with one-way airfare from around $120

Cheapest routes to Sullivan

  • Chicago (ORD/MDW) to Sullivan (STL), with budget one-way fares from around $40
  • Kansas City (MCI) to Sullivan (STL), with low one-way fares from around $40
  • Quincy (UIN) to Sullivan (STL), with low-cost one-way tickets from around $40
  • Orlando (MCO) to Sullivan (STL), with cheap one-way fares from around $45
  • Denver (DEN) to Sullivan (STL), with low one-way fares from around $45

*Flight times and fares vary by season and availability and are based on one-way routes

Top airlines with flights to Sullivan

  • American Airlines: Operating flights to Lambert-St. Louis International Airport (STL), this airline represents about 28% of arrivals at Sullivan. Travelers can expect an average one-way fare of around $330, with options for premium cabins, including first class, depending on the route.
  • Southwest Airlines: Also servicing Lambert-St. Louis International Airport (STL), Southwest Airlines accounts for approximately 27% of arrivals at Sullivan. The average one-way fare is roughly $240, making it a budget-friendly choice for many travelers.
  • Delta: Flying into Lambert-St. Louis International Airport (STL), Delta comprises about 20% of the arrivals at Sullivan. The average one-way fare stands at approximately $290, with premium cabin choices that may include both premium economy and first class, depending on the route.
  • United: With flights to Lambert-St. Louis International Airport (STL), United captures around 15% of arrivals at Sullivan. The average one-way fare is about $320, and premium cabins such as first class may be available based on the specific route.
  • Frontier Airlines: Serving Lambert-St. Louis International Airport (STL), Frontier Airlines contributes about 5% of the arrivals at Sullivan. It usually offers competitive pricing, with average one-way fares around $150, making it a viable option for cost-conscious travelers.

Best time to fly to Sullivan

The most popular months for travelers to fly to Sullivan are January, March, and April, when peak temperatures in Sullivan can reach up to 55.2°F in April. If you prefer quieter travel, consider September, the least busy time to visit with temperatures around 69.6°F and typically the lowest average one-way fare (around $222), roughly 9% cheaper than the yearly average. Looking for additional cheaper months to fly? October, May, and August offer average one-way fares of around $230, making them good options for flexible travelers.

calendar iconMonthtemperature iconTemperaturerain iconPrecipitationmostly cloudy iconCloudinesscrowd level iconDemandprice iconAverage one-way Fare
January31.6°F (-0.2°C)Light RainMostly SunnyModerately High$277
February34.7°F (1.5°C)Light RainMostly SunnyAverage$245
March46.0°F (7.8°C)Light RainMostly SunnyModerately High$273
April55.2°F (12.9°C)Light RainMostly SunnyModerately High$249
May65.1°F (18.4°C)Light RainMostly SunnyAverage$229
June74.8°F (23.8°C)Light RainMostly SunnyAverage$258
July77.9°F (25.5°C)Light RainMostly SunnyAverage$251
August75.9°F (24.4°C)Light RainMostly SunnyAverage$235
September69.6°F (20.9°C)Light RainMostly SunnyModerately Low$222
October57.4°F (14.1°C)Light RainMostly SunnyAverage$225
November45.5°F (7.5°C)Light RainMostly SunnyModerately Low$243
December37.4°F (3.0°C)Light RainMostly SunnyModerately Low$249

*Average one-way fare is based on Expedia flight booking data from January 2025 to April 2026 for the specified route and travel class and may change depending on availability, dates, and demand.

How to save money on a flight to Sullivan

Getting some of the best deals on flights to Sullivan is all about timing and flexibility. Here are some key tips to help you save:

  1. Compare flight options—use Expedia's search tool to compare airlines, routes, direct vs. non-direct flights, and flight times. You can also sort by price to find the most affordable options.
  2. Set up price alerts—as an Expedia member you can use Price Tracking to receive notifications when flight prices change.
  3. Bundle and save—book a flight and unlock a hotel deal on Expedia*, or explore our Sullivan hotel and flight deals.
  4. Think about luggage-nowadays, it's important to check the airline's baggage policies to find the best value. That may be paying for an additional carry-on bag or booking a ticket with checked luggage included. Either way, double-check your baggage allowance before confirming your booking to avoid excess baggage fees at the airport.
  5. Earn miles—you can earn airline miles when you book your Sullivan flight with Expedia. Just select your frequent flyer program and enter your program number when confirming your booking.

*For members. Select hotels.

Arriving in Sullivan

Sullivan welcomes travelers through its range of transport options based on price, convenience, and proximity. Here's how to reach Sullivan efficiently:

  • Public transportation: From Lambert-St. Louis International Airport, Lambert Main Terminal Station, a metro station, is located about 0.1 miles from the airport, offering easy access for travelers.
  • Hotel transfer: Transfers offer a convenient way to reach your hotel in Sullivan, with private rides that can be arranged in advance.
  • Car rental: Renting a car in Sullivan is a good option if you plan to explore and sightsee beyond the city. Browse cheap car rentals in Sullivan on Expedia.
  • Taxi/ride-hailing: Taxis and ride-hailing services may be available from designated pickup areas outside the terminal, check locally on arrival.

Where to stay in and around Sullivan

  • St. Cloud: A charming village located 4 miles away from Sullivan, St. Cloud is a great destination for outdoor enthusiasts and families alike. Visitors can enjoy the natural beauty of nearby Meramec Caverns and Meramec State Park, both offering stunning scenery and adventure opportunities. For those interested in culture, the Jesse James Wax Museum provides an engaging glimpse into local history. With various shopping centers and an arena entertainment facility, St. Cloud is perfect for a fun day trip.
  • Miramiguoa Park: Miramiguoa Park is located in the area of Sullivan and is an inviting spot for travelers seeking outdoor activities and picturesque scenery. The park features access to the serene river and nearby Meramec State Park, where hiking and nature exploration await. Adventurers can also discover the intriguing Meramec Caverns. Additionally, the Jesse James Wax Museum offers a cultural experience for those looking to learn more about the area’s history.
  • Oak Grove Village: Located in the area of Sullivan, Oak Grove Village is perfect for families and adventure seekers. This village offers a variety of recreational areas and educational opportunities, making it ideal for a family outing. Nearby attractions include the stunning Meramec Caverns and the breathtaking Meramec State Park, both suited for outdoor adventures. The Jesse James Wax Museum adds a touch of culture to your visit, ensuring there’s something for everyone in this welcoming community.

Tips for short-haul flights to Sullivan

For quick getaways, efficiency is key. Here is how to make your short-haul journey smoother:

  • Pack light and skip checked bags—with budget airlines, traveling with just a carry-on is often more cost-effective. Maximize space by using mini toiletries, wearing your heaviest clothing, and planning versatile outfits. This approach also helps you avoid the hassle of waiting at baggage claim upon arrival.
  • Bring your own entertainment—many short-haul flights do not provide in-flight entertainment. Download your favorite TV shows, movies, music, or podcasts ahead of time, and consider bringing a book to keep yourself entertained. Remember to charge your devices fully before boarding.
  • Arrive at the airport in plenty of time—even for short or domestic flights, it’s advisable to arrive at least 1.5 to 2 hours before departure to account for traffic and security lines.
  • Bring your own snacks and water—pack some snacks and a refillable water bottle to stay hydrated and save money while at the airport.

Tips for long-haul flights to Sullivan

Flying long-haul sometimes requires extra planning to ensure a comfortable journey:

  • Select your seat in advance—for longer flights, choosing your seat is essential for comfort. Full-service airlines may allow you to select your seat for free once online check-in opens, typically 24–48 hours before your flight. Some airlines provide the option to select a seat even earlier.
  • Arrive at the airport in plenty of time—make sure to arrive at the airport at least 3 hours before departure for international flights, allowing ample time for check-in, security screening, and immigration procedures.
  • Relax at the airport—if you have some extra time, take the opportunity to explore the shops, visit a coffee shop, or unwind at your gate or in a departure lounge if you have access. Most airports offer free Wi-Fi that you can take advantage of.
  • Adjust to the new time zone mid-flight—begin to align your body clock by changing your watch and adjusting your sleep schedule to reflect your destination's time zone. Try to sleep or stay awake on the flight according to the local time at your arrival point to help minimize jet lag.

Frequently asked questions

What month is the cheapest to fly to Sullivan?
The cheapest month to fly to Sullivan is October when demand is low. Off-peak months are often when you'll find cheap flights. To keep costs down, steer clear of flying during major holidays and school breaks.
Which US cities have the cheapest flights to Sullivan?
Typically, you'll find that Chicago, Dallas and Denver offer cheap flights to Sullivan. Flexibility, however, is the secret to scoring yourself the lowest fares. Head off midweek or during the low season to keep costs down.
Which US cities fly direct to Sullivan?
Pick from 55 US cities providing direct flights to Sullivan. When you book on Expedia, click on the "Direct flights only" box to compare nonstop options. Fly to Sullivan from any of these cities:
  • Chicago
  • Dallas
  • Denver
  • New York
  • Atlanta
How to find a cheap flight to Sullivan?
To snag cheap flights to Sullivan, book in advance or visit during the off-peak months of December and January. After another tip? Take off on a Thursday and save 16% on average compared to those who travel on a Sunday.* Set a price alert on the Expedia app and we'll get in touch as soon as your fares drop.*Best day of the week to book, depart and ideal booking window recommendations based on average round-trip ticket prices for January through August 2023, sourced from Airline Reporting Corporation's (ARC) global airline sales database. Percentages noted are averages.
How to get a cheap last-minute flight to Sullivan?
You can find awesome deals on last-minute flights to Sullivan, especially if your travel plans aren't set in stone. Consider flying from a different hub, changing your dates or selecting an alternative carrier to get a cheap flight to Sullivan.
How far in advance should I book a flight to Sullivan?
Get the travel dates you want and a fare that fits your budget by booking your domestic flight to Sullivan up to 28 days in advance. Lock in tickets two to four months ahead if you're visiting Sullivan from an international destination.**Best day of the week to book, depart and ideal booking window recommendations based on average round-trip ticket prices for January through August 2023, sourced from Airline Reporting Corporation's (ARC) global airline sales database. Percentages noted are averages.
Which day of the week is the cheapest day to buy a plane ticket to Sullivan?
You can usually find cheap flights to Sullivan on a Sunday. You'll save around 8% on average compared to those who book on a Friday, which is typically the most expensive day to buy tickets.**Best day of the week to book, depart and ideal booking window recommendations based on average round-trip ticket prices for January through August 2023, sourced from Airline Reporting Corporation's (ARC) global airline sales database. Percentages noted are averages.
Which airlines fly to Sullivan?
There are 10 carriers that connect Sullivan with 33 airports all over the world. The chief gateway to this city is Lambert-St. Louis Intl. Airport (STL). Book a ticket with any of these leading airlines to Sullivan:
  • Delta Air Lines
  • American Airlines
  • United Airlines
  • Southern Airways Express
Where do you fly into Sullivan?
Lambert-St. Louis Intl. Airport (STL) is the main hub for passengers flying to Sullivan. Or you can jet into Rolla, MO (RLA-Rolla National). Compare fares between the two airports to find the cheapest or easiest way to fly to Sullivan.
How far is the airport from central Sullivan?
You'll be roughly 55 mi northeast of central Sullivan after arriving at Lambert-St. Louis Intl. Airport (STL).
Can I save money by booking a Sullivan trip package?
Bundle your flights and accommodations and you could save hundreds of dollars. Better yet, you can add extras like car rentals and tours to your Sullivan flight and hotel package deal. With Expedia, it's easy to manage all your Sullivan travel plans in the same place.
Can I change or cancel my flight to Sullivan?
You can often change or cancel your flight to Sullivan within 24 hours of booking. However, keep in mind that some flights are non-refundable. In those cases, you may receive a credit toward a future trip instead of a direct refund. Remember to check the airline's rules and restrictions in your itinerary for specific details. Use Expedia's "No cancel fee" or "Changes included" filters during your search to secure cheap flights to Sullivan with flexible change policies. To learn more, visit our Customer Service Portal.

*Flight schedules are subject to change.

*Available to One Key members.

Book with confidence

Tips to find the cheapest flights to Sullivan

The cheapest day to fly

Get started finding a cheap flight to Sullivan 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.

The cheapest month to fly

October is the cheapest month to fly to Sullivan. This coincides with the low season when fewer people travel. Whichever month you travel in, though, be sure to book at least a month in advance if you want to score cheap tickets to Sullivan. ARC's data shows that domestic flights booked 28 days or more before departure are typically 24% cheaper than those booked last minute.

The most affordable time to book a flight

Typically, a Sunday can be the cheapest time to book a flight to Sullivan, according to ARC’s data. On average, you could save between 6% and 13% by booking on a Sunday instead of a Friday, which is the most expensive day to make a reservation.

The cheapest round-trip tickets to Sullivan

The lowest price for round-trip flights to Sullivan in 2026 starts from from $46, while one-way tickets start from from $22. Expedia's effective search tool is one of the best ways to find a budget airfare. Simply enter your dates, and within seconds, it'll show you a vast selection of the cheapest flights to Sullivan. If you have a preferred departure time or airline, you can use the handy filters to customize your search.

The cheapest airlines flying to Sullivan

Frontier Airlines, Southwest Airlines, Delta, American Airlines, United, Alaska Airlines are just some of the airlines that can typically offer cheap tickets to Sullivan. You can find their most affordable flights by using the “airline” search filter and then sorting prices from low to high. As a trusted partner of the world's leading airlines, Expedia offers you some of the best airfare deals to Sullivan and countless more destinations worldwide.

The most affordable airports to fly into

To view the cheapest airports to fly into for Sullivan, simply order your search results from lowest to highest price. Expedia's search tool compares flight prices for all airports close to your destination, so you don't have to manually search them one by one to find the cheapest flight to Sullivan. If you have a preferred place to fly into, take advantage of the “arrival airport” filter to narrow down your search on Expedia.

Save with a package

With Expedia's amazing package deals, you could save hundreds of dollars by booking your Sullivan plane tickets together with your accommodations, car rental, or activities. Just select the search wizard's “package” option to view some of the cheapest deals. Look out for the green savings label to see how much you're saving.

Date flexibility for the cheapest flights to Sullivan

If you can be flexible with your travel dates, it's a good idea to broaden your search by comparing prices on different days. This will open up more options, meaning you could uncover a less expensive flight to Sullivan.

Stopover savings

The cheapest tickets to Sullivan are sometimes those with a stopover. Book one of these flights, and you'll change planes at an airport en route to Sullivan. While the overall travel time might be longer than a non-stop flight, you may decide it's worth it for the money saved.

Get Expedia's Price Drop Protection

Price Drop Protection means that if your flight gets cheaper after booking, you'll be credited the difference*. This gives you peace of mind that you're getting one of the cheapest flights to Sullivan for your chosen departure. Expedia's Price Drop Protection is available for a small fee but is free to One Key Gold and Platinum tier members.

*Terms apply.

Use our Price Tracking feature

Expedia's Price Tracking feature is another great tool that removes the guesswork from finding cheap flights to Sullivan. Simply download the free Expedia app to your smart device and activate Sullivan flight price alerts for your travel dates. There's even a price predictor tool that uses historical data to indicate the best time to book, giving you peace of mind that you'll nab the lowest prices.

Book with Expedia

As well as Price Drop Protection and Price Tracking, Expedia's close partnership with a vast selection of the world's leading airlines means you're sure to find cheap flights to Sullivan. Plus, the One Key rewards program lets you earn real cash rewards on most bookings that you can use to save money on future trips. Best of all, it's free to join, and members often unlock exclusive discounts, too.

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

Tips to find the cheapest flights to Sullivan

Travel information

Destination airport
Lambert-St. Louis Intl.
Destination airport IATA code
STL
Destination city name
St. Louis
Roundtrip price
$46

Trending flights to Sullivan

Prices were available within the past 7 days and start at $22 for one-way flights and $46 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

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