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Quincy

$49+ 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 8/15. Fares are subject to change and may not be available on all flights or dates of travel.
STL — UIN
Aug 5 — Aug 121
Tue 8/5
Tue 8/12
1 adult, Economy
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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 July 31, 2025.

Round-trip from

$71
(Trip.com)

One-way from

$49
(Orbitz)

Popular in

December

Cheapest in

February

Average price

$76

Good round-trip deal

$70 or less

Good one-way deal

$84 or less
From Lambert-St Louis to Quincy Regional
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One-way flight from Lambert-St Louis to Quincy Regional
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Highest demand for flights based on searches. 34% potential increase in price ($48 potential increase over avg. RT price).
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Cheapest flight prices on average. 7% potential price decrease ($6 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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Price to beat on a round-trip flight from Lambert-St Louis to Quincy Regional.
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Price to beat on a one-way flight from Lambert-St Louis to Quincy Regional.
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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 July 31, 2025.

This Trip.com deal was found by Cheapflights users on 7/30. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/245:15 pmSTL - UIN
Nonstop1h 00mSouthern / Mokulele
Sun 8/3111:10 amUIN - STL
Nonstop1h 00mSouthern / Mokulele
Deal found 7/30$71
This Trip.com deal was found by Cheapflights users on 7/30. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/151:00 pmSTL - UIN
Nonstop1h 00mMultiple Airlines
Tue 8/1910:35 amUIN - STL
1 stop25h 50mMultiple Airlines
Deal found 7/30$249

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 July 31, 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

Sun 8/24

5:15 pm-6:15 pm

Nonstop1h 00m

Quincy Regional

Sun 8/31

11:10 am-12:10 pm

Nonstop1h 00m

$71

St. LouisQuincy

STL - UIN

STLUIN

Lambert-St Louis

Fri 8/15

1:00 pm-2:00 pm

Nonstop1h 00m

Quincy Regional

Tue 8/19

10:35 am-12:25 pm

1 stop25h 50m

$249

St. LouisQuincy

STL - UIN

STLUIN

Lambert-St Louis

Fri 8/15

9:20 am-10:20 am

Nonstop1h 00m

$49

St. LouisQuincy

STL - UIN

STLUIN

Lambert-St Louis

Wed 8/6

11:24 am-10:10 am

2 stops22h 46m

$298

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/30

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 July 31, 2025.

It’s optimal to fly from St. Louis to Quincy, Illinois in the evening. By choosing this option you can save up to 65% 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 July 31, 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).

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 7 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 $71, 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 22% 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 $103 for a flight from St. Louis to Quincy, Illinois. The cheapest flight overall is $49 while the most popular route, (Lambert-St Louis - Quincy Regional) is currently priced at $71.

  • 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

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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 July 31, 2025.
AirlineCheapestAverageFlexibilityOn-time
Southern / MokuleleCheapest$68Average$75FlexibilityNo cancel feeOn-timeN/A

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