HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Quincy

$37+ Cheap flights from St. Louis to Quincy, IL (STL - UIN)

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 7/4. Fares are subject to change and may not be available on all flights or dates of travel.
STL — UIN
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from St. Louis to Quincy with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from St. Louis to Quincy

Discover tips and strategies to find the most affordable flight options for your journey from St. Louis (STL) to Quincy (UIN). 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 June 12, 2025.

Round-trip from

$78
(Orbitz)

One-way from

$37
(Trip.com)

Popular in

December

Cheapest in

February

Average price

$75

Good round-trip deal

$78 or less

Good one-way deal

$106 or less
From Lambert-St Louis to Quincy Regional
Search Deals
One-way flight from Lambert-St Louis to Quincy Regional
Search Deals
Highest demand for flights based on searches. 33% potential increase in price ($47 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease ($6 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in June 2025
Search Deals
Price to beat on a round-trip flight from Lambert-St Louis to Quincy Regional.
Search Deals
Price to beat on a one-way flight from Lambert-St Louis to Quincy Regional.
Search Deals

Find flight deals from St. Louis to Quincy

Cheapest flights from St. Louis to Quincy
Explore the most affordable flight options available from St. Louis to Quincy. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 12, 2025.

This Orbitz deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/178:40 pmSTL - UIN
Nonstop1h 00mSouthern / Mokulele
Wed 7/2311:10 amUIN - STL
Nonstop1h 00mSouthern / Mokulele
Deal found 6/11$78

Cheapflights Fare Finder

Customize your flight search to find flights from St. Louis to Quincy 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 2,558,603 searches. Data last updated June 12, 2025.
Use the filters below to find and compare flights from St. Louis to Quincy that are best for you.

Fly from

St. Louis

Fly to

Quincy

Route

Depart

Return

Price

St. LouisQuincy

STL - UIN

STLUIN

Lambert-St Louis

Thu 7/17

8:40 pm-9:40 pm

Nonstop1h 00m

Quincy Regional

Wed 7/23

11:10 am-12:10 pm

Nonstop1h 00m

$78

St. LouisQuincy

STL - UIN

STLUIN

Lambert-St Louis

Fri 7/4

8:40 pm-9:40 pm

Nonstop1h 00m

$37

St. LouisQuincy

STL - UIN

STLUIN

Lambert-St Louis

Mon 7/7

7:13 pm-3:05 pm

3 stops19h 52m

$163

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/11

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

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

Cheapflights Insights

Everything you need to know about your flight from St. Louis to Quincy

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

Find hourly flight availability from St. Louis to Quincy. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated June 12, 2025.

It’s optimal to fly from St. Louis to Quincy, Illinois in the morning. By choosing this option you can save up to 63% on the cost of your flight, compared to a flight at noon.

Weekly flight availability from St. Louis to Quincy, Illinois

Explore weekly flight availability from St. Louis to Quincy. 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 June 12, 2025.

The most flights from STL to UIN are scheduled on a Monday (3 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (1 on average).

Rainfall in Quincy by month

Plan your trip to Quincy by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Quincy, Illinois ranges from 1.5 - 4.5 inches per month. May is typically the wettest month, when rainfall can reach 4.5 in. January is typically the driest time to visit Quincy, Illinois when rainfall is around 1.5 in.

Temperature in Quincy by month

Plan your trip to Quincy by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Quincy, Illinois, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 77.0 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 26.6 F).

Related info for your journey

Find useful and relevant information for your journey from St. Louis to Quincy. 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 St. Louis to Quincy?

    You will need to book a flight from Lambert-St Louis to Quincy Regional if you want to fly from St. Louis to Quincy. At least 1 airline has flights from Lambert-St Louis (STL) to Quincy Regional (UIN) on a regular basis. There are 2 flights to Quincy from the St. Louis airport per day. If you manage to book one that is nonstop, then you can expect the flight time from STL to UIN to be around 1h 00m.

  • How popular is this St. Louis to Quincy, Illinois flight route?

    The Lambert-St Louis to Quincy Regional flight path was viewed by 6 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

  • What is the cheapest airline to fly from St. Louis to Quincy, Illinois round-trip?

    Currently priced at $78, Southern / Mokulele will fly you from St. Louis to Quincy, Illinois and back. In addition to Southern / Mokulele, many other airlines offer competitively priced options for your trip. Users have found that Southern / Mokulele is 15% cheaper than the other options available to this destination.

  • What are the cheapest flights from St. Louis to Quincy, Illinois?

    On average you can expect to pay $187 for a flight from St. Louis to Quincy, Illinois. The cheapest flight overall is $72 while the most popular route, (Lambert-St Louis - Quincy Regional) is currently priced at $70.

  • Can I find deals for flights from St. Louis to Quincy that include hotel bookings?

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

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

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

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

    Yes. Cheapflights offers flight deals from St. Louis to Quincy by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

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.

Top airline flying from St. Louis to Quincy

Discover the top airline that operate flights from St. Louis to Quincy. 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 2,558,603 searches. Data last updated June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
Southern / MokuleleCheapest$68Average$77FlexibilityNo cancel feeOn-timeN/A

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.