A city skyline with a prominent arch bridge at sunset.

$154 Cheap Flights from Quincy (UIN) to St. Louis (STL)

View $154 flight on Fri, Sep 11, 2026Opens in a new window

Popular airlines from Quincy, IL (UIN-Quincy Regional-Baldwin Field) to St. Louis Lambert Intl. Airport (STL)

  • Be in the know

    Get alerts if flight prices drop or rise*

  • Book smarter

    Save up to 30% on select hotels after you book a flight*

  • Earn twice

    Earn your airline miles on top of our OneKeyCash
    Learn about One Key

Cheap Flights from Quincy to St. Louis (UIN-STL)

Prices were available within the past 7 days and start at $154 for one-way flights and $330 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Contour Airlines
Thu, Sep 10 - Mon, Sep 14
UIN
Quincy
STL
St. Louis
$330 Roundtrip, found 1 day ago
$330
Roundtrip
found 1 day ago
Select Contour Airlines flight, departing Thu, Sep 10 from Quincy to St. Louis, returning Mon, Sep 14, priced at $330 found 1 day ago
Contour Airlines
Thu, Sep 10 - Mon, Sep 14
UIN
Quincy
STL
St. Louis
$336 Roundtrip, found 1 day ago
$336
Roundtrip
found 1 day ago
Select Contour Airlines flight, departing Thu, Sep 10 from Quincy to St. Louis, returning Mon, Sep 14, priced at $336 found 1 day ago
Contour Airlines
Wed, Sep 16 - Wed, Sep 23
UIN
Quincy
STL
St. Louis
$339 Roundtrip, found 2 days ago
$339
Roundtrip
found 2 days ago
Select Contour Airlines flight, departing Wed, Sep 16 from Quincy to St. Louis, returning Wed, Sep 23, priced at $339 found 2 days ago
Contour Airlines
Wed, Sep 16 - Wed, Sep 23
UIN
Quincy
STL
St. Louis
$345 Roundtrip, found 2 days ago
$345
Roundtrip
found 2 days ago
Select Contour Airlines flight, departing Wed, Sep 16 from Quincy to St. Louis, returning Wed, Sep 23, priced at $345 found 2 days ago
Contour Airlines
Thu, Dec 17 - Thu, Dec 31
UIN
Quincy
STL
St. Louis
$359 Roundtrip, found 3 days ago
$359
Roundtrip
found 3 days ago
Select Contour Airlines flight, departing Thu, Dec 17 from Quincy to St. Louis, returning Thu, Dec 31, priced at $359 found 3 days ago
Contour Airlines
Thu, Sep 10 - Mon, Sep 14
UIN
Quincy
STL
St. Louis
$374 Roundtrip, found 1 day ago
$374
Roundtrip
found 1 day ago
Select Contour Airlines flight, departing Thu, Sep 10 from Quincy to St. Louis, returning Mon, Sep 14, priced at $374 found 1 day ago
Contour Airlines
Fri, Sep 11 - Sun, Sep 13
UIN
Quincy
STL
St. Louis
$376 Roundtrip, found 6 days ago
$376
Roundtrip
found 6 days ago
Select Contour Airlines flight, departing Fri, Sep 11 from Quincy to St. Louis, returning Sun, Sep 13, priced at $376 found 6 days ago
Contour Airlines
Wed, Sep 16 - Wed, Sep 23
UIN
Quincy
STL
St. Louis
$379 Roundtrip, found 1 day ago
$379
Roundtrip
found 1 day ago
Select Contour Airlines flight, departing Wed, Sep 16 from Quincy to St. Louis, returning Wed, Sep 23, priced at $379 found 1 day ago
Contour Airlines
Thu, Sep 10 - Mon, Sep 14
UIN
Quincy
STL
St. Louis
$388 Roundtrip, found 1 day ago
$388
Roundtrip
found 1 day ago
Select Contour Airlines flight, departing Thu, Sep 10 from Quincy to St. Louis, returning Mon, Sep 14, priced at $388 found 1 day ago
Contour Airlines
Wed, Sep 16 - Wed, Sep 23
UIN
Quincy
STL
St. Louis
$388 Roundtrip, found 2 days ago
$388
Roundtrip
found 2 days ago
Select Contour Airlines flight, departing Wed, Sep 16 from Quincy to St. Louis, returning Wed, Sep 23, priced at $388 found 2 days ago

What you need to know for your flight from Quincy Regional-Baldwin Field to Lambert-St. Louis Intl.

Quincy (UIN) to St. Louis (STL) at a glance

Travel conveniently from Quincy (UIN) to St. Louis (STL) with a full-service airline on this domestic short-haul route. Discover the flight options that align with your travel itinerary as you visit the iconic attractions and vibrant neighborhoods of St. Louis. Here, you'll find essential details for flights departing from Quincy Regional-Baldwin Field Airport (UIN) to Lambert-St. Louis International Airport (STL).

  • Fastest flight duration: around 1 hour non-stop
  • Route distance: roughly 100 miles (160 km)
  • Flights per week: around 7 departures on average
  • Typical fares (one-way): economy tickets often range from $40–$80, depending on seasonality and how far ahead you book

Flights from Quincy Regional-Baldwin Field Airport (UIN) to Lambert-St. Louis International Airport (STL)

Here are the top airlines favored by travelers flying non-stop from Quincy to St. Louis, based on recent booking data. These carriers offer you the freedom to combine factors like price, total travel time, and cabin class to create your ideal travel itinerary.

  • Southern Airways: This comprehensive airline provides non-stop flights with one-way fares usually falling between $40 and $80. It dominates this route, offering a total travel time of just 1 hour for passengers.

How to find the best prices for flights from Quincy (UIN) to St. Louis (STL)

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

  1. Best times to book and fly: cheaper fares are usually available when booking 2 to 8 weeks in advance, although most travelers tend to book within 2 weeks. Departures in the morning (5 AM to 12 PM) are often cheaper and are also the most popular flight times. Additionally, flying on Sunday typically offers lower prices, while Friday remains the busiest travel day.
  2. Set up price alerts: stay updated on price changes by using Expedia's Price Tracker. Receive alerts when fares drop for your selected route.
  3. Bundle and save: bundle your flight and hotel to save on Expedia, or unlock a hotel deal after booking your flight.*
  4. 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.
  5. Stay flexible with dates: being open to different travel days can sometimes help you find better prices on flights and hotels.
  6. 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 allowance before confirming your booking to avoid excess baggage fees at the airport.

*Members only. Savings vary and are not available on all bundles. Select hotels.

Arriving at Lambert-St. Louis International Airport from Quincy Regional-Baldwin Field Airport

St. Louis welcomes travelers from Quincy with a range of transport options based on price, convenience, and proximity. Here's how to reach St. Louis efficiently:

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

Frequently asked questions

How much does a flight from Quincy, IL (UIN-Quincy Regional-Baldwin Field) to St. Louis, MO (STL-Lambert-St. Louis Intl.) cost?
You can find cheap one-way flights from $154 and cheap return flights from $330 Quincy, IL (UIN-Quincy Regional-Baldwin Field) to St. Louis, MO (STL-Lambert-St. Louis Intl.) with Expedia. One-way flights usually range from $34 to $79, and return flights typically cost between $78 and $158. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see the cheapest fares first, and use the Price Tracking tool to receive alerts when Quincy, IL (UIN-Quincy Regional-Baldwin Field) to St. Louis, MO (STL-Lambert-St. Louis Intl.) ticket fares go up or down.*Typical price ranges based on flights available on Expedia in the last year. Prices include multi-airline options.
What is the cheapest month to fly from Quincy, IL (UIN-Quincy Regional-Baldwin Field) to St. Louis, MO (STL-Lambert-St. Louis Intl.)?
The cheapest month to fly from UIN to STL is September when demand is low. Traveling in off-peak or shoulder months is usually a good way to secure cheap tickets, just remember to avoid flying during holidays if you're able to. Use the calendar view in your search to see which months have low fares on this route.
Which airlines fly direct from Quincy, IL (UIN-Quincy Regional-Baldwin Field) to St. Louis, MO (STL-Lambert-St. Louis Intl.)?
Enter UIN to STL and your travel dates, then apply the 'Nonstop' filter to see only direct flights.
How do I find cheap flights from Quincy, IL (UIN-Quincy Regional-Baldwin Field) to St. Louis, MO (STL-Lambert-St. Louis Intl.)?
To find a cheap flight from Quincy, IL (UIN-Quincy Regional-Baldwin Field) to St. Louis, MO (STL-Lambert-St. Louis Intl.), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.
What is the best airline to fly with from Quincy, IL (UIN-Quincy Regional-Baldwin Field) to St. Louis, MO (STL-Lambert-St. Louis Intl.)?
The best airline to fly with from Quincy, IL (UIN) to St. Louis, MO (STL) will differ from traveler to traveler. If you like to fly early, Southern Airways Express offers early morning flights. If price is the most important factor, Southern Airways Express typically offers the lowest fares. Contour Airlines offers the most daily flights from Quincy to St. Louis, which is great if flexibility is what you value most. The best carrier for this journey could also be the one you have a loyalty membership with, as flying with that airline or another airline within the same alliance could help you collect points or enjoy lounge access.
What is the best time to fly from Quincy, IL (UIN-Quincy Regional-Baldwin Field) to St. Louis, MO (STL-Lambert-St. Louis Intl.)?
The best time to fly is usually mid-week (Tuesday or Wednesday) and during early morning hours as flights tend to be cheaper, less crowded, and generally more on-time. Avoid major holidays and peak vacation seasons for smoother travel. Combining off-peak days and hours often gives the best combination of cost, comfort, and convenience.
What is the earliest flight from Quincy, IL (UIN-Quincy Regional-Baldwin Field) to St. Louis, MO (STL-Lambert-St. Louis Intl.)?
The earliest flight from Quincy Regional-Baldwin Field (UIN) to Lambert-St. Louis International Airport (STL) usually departs at around 7:50 AM, operated by Southern Airways Express. This flight allows you to arrive in St. Louis with plenty of time to explore the city. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
What are the most popular departure times for flights from Quincy, IL (UIN-Quincy Regional-Baldwin Field) to St. Louis, MO (STL-Lambert-St. Louis Intl.)?
The most popular departure times for flights from Quincy, IL (UIN) to St. Louis, MO (STL) are in the early morning, from 6am to 9am. About 38% of passengers prefer this time window. Southern Airways Express offers flights during this window. Many travelers choose this timing to make the most of their day in St. Louis.
How long does it take to fly from Quincy, IL (UIN-Quincy Regional-Baldwin Field) to St. Louis, MO (STL-Lambert-St. Louis Intl.)?
A nonstop flight from UIN to STL typically takes around 50 minutes, covering approximately 94 miles. Connecting flights on this route usually add 3 hours to your travel time. Keep in mind that actual flight times can vary due to wind patterns, weather, and air traffic.
Can you fly business or first class from Quincy, IL (UIN-Quincy Regional-Baldwin Field) to St. Louis, MO (STL-Lambert-St. Louis Intl.)?
Select the "Business class" and "First class" filters when looking for UIN to STL flights on Expedia. This is the easiest way to compare prices, routes and flight times for your trip.
How do I earn miles on a Quincy, IL (UIN-Quincy Regional-Baldwin Field) to St. Louis, MO (STL-Lambert-St. Louis Intl.) flight with Expedia?
It's easy to earn miles on a Quincy, IL (UIN-Quincy Regional-Baldwin Field) to St. Louis, MO (STL-Lambert-St. Louis Intl.) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia.*Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.
What airports do you fly into for St. Louis from Quincy Regional-Baldwin Field (UIN)?
From Quincy Regional-Baldwin Field (UIN), you can fly typically into Lambert-St. Louis Intl. (STL) to reach St. Louis. Compare routes and airports on Expedia to find the best flight options for your travel plans.
Is it cheaper to buy a plane ticket from Quincy, IL (UIN-Quincy Regional-Baldwin Field) to St. Louis, MO (STL-Lambert-St. Louis Intl.) at the last minute?
Typically, booking a last minute flight from Quincy, IL (UIN-Quincy Regional-Baldwin Field) to St. Louis, MO (STL-Lambert-St. Louis Intl.) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a Quincy, IL (UIN-Quincy Regional-Baldwin Field) to St. Louis, MO (STL-Lambert-St. Louis Intl.) flight and hotel package?
Securing a Quincy, IL (UIN-Quincy Regional-Baldwin Field) to St. Louis, MO (STL-Lambert-St. Louis Intl.) St Louis Vacation Packages is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Quincy, IL (UIN-Quincy Regional-Baldwin Field) to St. Louis, MO (STL-Lambert-St. Louis Intl.)?
If you booked your Quincy, IL (UIN-Quincy Regional-Baldwin Field) to St. Louis, MO (STL-Lambert-St. Louis Intl.) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.

Travel information

Origin airport
Quincy Regional-Baldwin Field
Destination airport
Lambert-St. Louis Intl.
Roundtrip price
$330
Distance
93 mi

Book with confidence

Quincy to St. Louis Flights

The cheapest times to fly from Quincy to St. Louis

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Quincy to St. Louis are during the month of September. You can find some of the cheapest flights from Quincy to St. Louis with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Quincy to St. Louis

Sunday is one of the best days to book for cheap flights from Quincy to St. Louis: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Quincy to St. Louis

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Quincy to St. Louis in 2026. You can also book with separate airlines for your outbound and return journeys, from $154 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Quincy to St. Louis flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Quincy to St. Louis airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

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

 

Quincy to St. Louis Flights

*Flight schedules are subject to change.

*Available to One Key members.

 

Explore a world of travel with Expedia