good.flights

Cheap flights from Chicago to St Louis

One-way from $55, found by travellers in the last 7 days. The live price is checked when you book.

Departure
Return
Prices for nearby dates
Fri, Nov 13Any priceSat, Nov 14Any priceSun, Nov 15Any priceMon, Nov 16$55Tue, Nov 17Any priceWed, Nov 18Any priceThu, Nov 19Any priceFri, Nov 20Any price

Cheapest one-way tickets

Recent finds on different dates, for 1 adult. Booking opens on Aviasales, which shows baggage, fare rules and the live price.

Cheapest
$55
Southwest Airlines, flight WN 2339Found yesterday, 1 adult
Check live price
8:45pmChicagoMon, Nov 16
Travel time 1h 15m, nonstopMDWSTL
10:00pmSt LouisMon, Nov 16
$72
Southwest Airlines, flight WN 2339Found 3 days ago, 1 adult
Check live price
9:25pmChicagoMon, Dec 21
Travel time 1h 20m, nonstopMDWSTL
10:45pmSt LouisMon, Dec 21
$74
Southwest Airlines, flight WN 2769Found 4 days ago, 1 adult
Check live price
7:50pmChicagoTue, Jan 12
Travel time 1h 15m, nonstopMDWSTL
9:05pmSt LouisTue, Jan 12
$97
American Airlines, flight AA 3292Found 2 days ago, 1 adult
Check live price
10:39pmChicagoMon, Nov 2
Travel time 1h 20m, nonstopORDSTL
11:59pmSt LouisMon, Nov 2
$104
American Airlines, flight AA 2444Found 6 days ago, 1 adult
Check live price
7:34pmChicagoThu, Oct 29
Travel time 1h 23m, nonstopORDSTL
8:57pmSt LouisThu, Oct 29

Plan the rest of the trip

  • Mobile data in United StatesTravel eSIM from $4, installed before you fly.
    Compare plans
  • Flight delayed?Delayed or cancelled? See which passenger rights cover this route.
    Check

Price calendar

The lowest one-way fare found for each day over the next 60 days. A dash means no recent fare; you can still pick that day.

October 2026

MoTuWeThFrSaSu12345678910111213141516171819202122232425–26–27–28$14129$10430–31$116

November 2026

MoTuWeThFrSaSu1$1052$973–4–5–6–7$1878$1509–10–11–12–13–14–15–16$5517–18–19–20–21–22–23–24–25–26–27–28–29–30–

December 2026

MoTuWeThFrSaSu1–2–3–4–5–6–7–8–9–10–11–12–13–14–15–16–17–18–19–20–21$7222–23–2425262728293031
$74 or lessGreen: the cheapest fifth of fares on this route. Lowest in these 60 days: Nov 16, $55.

Lowest fares by month

In the fares found this week, November has the lowest: from $55 one-way, against $104 in October. Pick a month to see its cheapest date.

  1. Oct$104
  2. Nov$55
  3. Dec$72
  4. Jan$74
  5. Febno fares yet
  6. Marno fares yet
  7. Aprno fares yet
  8. Mayno fares yet
  9. Junno fares yet
  10. Julno fares yet
  11. Augno fares yet
  12. Sepno fares yet
$0$50$100$150Oct$55NovDecJanFebMarAprMayJunJulAugSep
Show as a table
MonthCheapest one-wayDateStops
October$104Thu, Oct 29Nonstop
November$55Mon, Nov 16Nonstop
December$72Mon, Dec 21Nonstop
January 2027$74Tue, Jan 12Nonstop
February 2027—
March 2027—
April 2027—
May 2027—
June 2027—
July 2027—
August 2027—
September 2027—

Questions travellers ask

What is the cheapest month to fly from Chicago to St Louis?

In the fares found this week, November has the lowest: from $55 one-way, against $104 in October.

Are there direct flights from Chicago to St Louis?

Yes. Recent fares include nonstop flights with American Airlines and Southwest Airlines.

How long is the flight from Chicago to St Louis?

A nonstop flight takes about 1h 15m. The distance is 252 mi.

More cheap flights from Chicago

All 313 destinations