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O'Hare International Airport to St. Louis Lambert International Airport flight

Explore the cheapest one-way and round-trip flights from O'Hare International Airport to St. Louis Lambert International Airport over the next 90 days, with one-way fares from US$59 and round-trip from US$110. Based on Trip.com's latest 7-day flight data.

      • Cheapest nonstop
        ORD 19:34
        1h 23m
        Direct
        STL 20:57
        Chicago - St. Louis | Wed, Oct 7 | American Airlines
        STL 05:00
        1h 26m
        Direct
        ORD 06:26
        St. Louis - Chicago | Wed, Oct 14 | American Airlines
        US$111 US$146
        24% off
        24% off
        US$146 US$111
      • ORD 23:00
        1h 19m
        Direct
        STL 00:19
        Chicago - St. Louis | Thu, Oct 8 | American Airlines
        STL 07:29
        1h 31m
        Direct
        ORD 09:00
        St. Louis - Chicago | Thu, Oct 15 | American Airlines
        US$111 US$146
        24% off
        24% off
        US$146 US$111
      • ORD 09:29
        1h 21m
        Direct
        STL 10:50
        Chicago - St. Louis | Sat, Oct 10 | American Airlines
        STL 05:00
        1h 26m
        Direct
        ORD 06:26
        St. Louis - Chicago | Mon, Oct 12 | American Airlines
        US$117 US$146
        20% off
        20% off
        US$146 US$117
      • ORD 18:03
        1h 19m
        Direct
        STL 19:22
        Chicago - St. Louis | Mon, Nov 9 | American Airlines
        STL 05:01
        1h 29m
        Direct
        ORD 06:30
        St. Louis - Chicago | Wed, Nov 11 | American Airlines
        US$117
        20% off
        US$146 US$117
      • ORD 09:29
        1h 21m
        Direct
        STL 10:50
        Chicago - St. Louis | Wed, Oct 21 | American Airlines
        STL 11:32
        1h 28m
        Direct
        ORD 13:00
        St. Louis - Chicago | Wed, Oct 28 | American Airlines
        US$117
        20% off
        US$146 US$117
      • ORD 08:55
        1h 23m
        Direct
        STL 10:18
        Chicago - St. Louis | Sat, Sep 26 | American Airlines
        STL 17:18
        1h 55m
        Direct
        ORD 19:13
        St. Louis - Chicago | Sat, Sep 26 | American Airlines
        US$118
        19% off
        US$146 US$118
      • ORD 09:29
        1h 21m
        Direct
        STL 10:50
        Chicago - St. Louis | Tue, Oct 6 | American Airlines
        STL 07:29
        1h 31m
        Direct
        ORD 09:00
        St. Louis - Chicago | Tue, Oct 13 | American Airlines
        US$118
        19% off
        US$146 US$118
      • ORD 23:00
        1h 19m
        Direct
        STL 00:19
        Chicago - St. Louis | Mon, Oct 12 | American Airlines
        STL 07:29
        1h 31m
        Direct
        ORD 09:00
        St. Louis - Chicago | Thu, Oct 15 | American Airlines
        US$118
        19% off
        US$146 US$118
      • ORD 19:34
        1h 23m
        Direct
        STL 20:57
        Chicago - St. Louis | Wed, Oct 14 | American Airlines
        STL 07:29
        1h 31m
        Direct
        ORD 09:00
        St. Louis - Chicago | Wed, Oct 21 | American Airlines
        US$118
        19% off
        US$146 US$118
      • ORD 09:29
        1h 21m
        Direct
        STL 10:50
        Chicago - St. Louis | Sat, Oct 17 | American Airlines
        STL 17:23
        1h 38m
        Direct
        ORD 19:01
        St. Louis - Chicago | Sat, Oct 17 | American Airlines
        US$118
        19% off
        US$146 US$118
      • ORD 06:20
        6h 50m
        1 stop
        STL 13:10
        Chicago - St. Louis | Wed, Oct 7 | Frontier Airlines
        STL 16:05
        1h 5m
        Direct
        MDW 17:10
        St. Louis - Chicago | Wed, Oct 14 |
        US$110
        25% off
        US$146 US$110
      • ORD 06:20
        6h 50m
        1 stop
        STL 13:10
        Chicago - St. Louis | Wed, Sep 30 | Frontier Airlines
        STL 14:25
        1h 5m
        Direct
        MDW 15:30
        St. Louis - Chicago | Wed, Oct 7 |
        US$112
        23% off
        US$146 US$112
      • CHI 13:00
        17h 25m
        1 stop
        STL 14:00
        Chicago - St. Louis | Fri, Sep 25 | Normal Airline
        STL 15:00
        6h
        Direct
        CHI 16:00
        St. Louis - Chicago | Sun, Sep 27 | Normal Airline
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      • Cheapest nonstop
        ORD 23:00
        1h 19m
        Direct
        STL 00:19
        Chicago - St. Louis | Tue, Nov 3 | American Airlines
        US$59 US$87
        32% off
        32% off
        US$87 US$59
      • ORD 23:05
        1h 22m
        Direct
        STL 00:27
        Chicago - St. Louis | Wed, Oct 21 | American Airlines
        US$59 US$87
        32% off
        32% off
        US$87 US$59
      • ORD 23:00
        1h 19m
        Direct
        STL 00:19
        Chicago - St. Louis | Sat, Nov 14 | American Airlines
        US$59 US$87
        32% off
        32% off
        US$87 US$59
      • ORD 23:05
        1h 22m
        Direct
        STL 00:27
        Chicago - St. Louis | Sat, Oct 17 | American Airlines
        US$59
        32% off
        US$87 US$59
      • ORD 22:44
        1h 14m
        Direct
        STL 23:58
        Chicago - St. Louis | Sun, Sep 27 | American Airlines
        US$61
        30% off
        US$87 US$61
      • ORD 23:05
        1h 22m
        Direct
        STL 00:27
        Chicago - St. Louis | Sat, Oct 10 | American Airlines
        US$62
        28% off
        US$87 US$62
      • ORD 10:26
        7h 14m
        1 stop
        STL 17:40
        Chicago - St. Louis | Mon, Nov 16 | Frontier Airlines
        US$60
        31% off
        US$87 US$60
      • ORD 06:20
        6h 50m
        1 stop
        STL 13:10
        Chicago - St. Louis | Wed, Oct 21 | Frontier Airlines
        US$61
        30% off
        US$87 US$61
      • ORD 06:00
        4h 23m
        1 stop
        STL 10:23
        Chicago - St. Louis | Sun, Sep 27 | Delta Air Lines
        US$66
        24% off
        US$87 US$66
      • ORD 06:30
        12h 47m
        1 stop
        STL 19:17
        Chicago - St. Louis | Sat, Oct 10 | Frontier Airlines
        US$67
        23% off
        US$87 US$67
      • ORD 08:55
        6h 19m
        1 stop
        STL 15:14
        Chicago - St. Louis | Sat, Oct 10 | Delta Air Lines
        US$70
        20% off
        US$87 US$70
      • ORD 06:10
        4h 21m
        1 stop
        STL 10:31
        Chicago - St. Louis | Wed, Oct 21 | Delta Air Lines
        US$70
        20% off
        US$87 US$70
      • CHI 13:00
        17h 25m
        1 stop
        STL 14:00
        Chicago - St. Louis | Fri, Sep 25 | Normal Airline
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Displayed flight fares from O'Hare International Airport to St. Louis Lambert International Airport are based on average prices across airlines for the next 3 months according to the latest Trip.com data.

Trip.com Price Insights: Flights from O'Hare International Airport to St. Louis Lambert International Airport

What is the cheapest month to fly from O'Hare International Airport to St. Louis Lambert International Airport?

The data is based on the past 12 months and shows the average one-way ticket prices from O'Hare International Airport to St. Louis Lambert International Airport for each month in the Trip.com database.

Based on Trip.com's data from the past 12 months, the cheapest one-way flights from O'Hare International Airport to St. Louis Lambert International Airport are usually in October, with an average price of US$92. It is best to avoid November, when the average price can reach US$323.

US$323
US$208
US$92
0
    Cheapest
  • US$225
    Sep
  • US$92
    Oct
  • US$323
    Nov
  • US$218
    Dec
  • US$296
    Jan
  • US$216
    Feb
  • US$283
    Mar
  • US$212
    Apr
  • US$226
    May
  • US$187
    Jun
  • US$236
    Jul
  • US$228
    Aug

What is the cheapest day of the week to fly from O'Hare International Airport to St. Louis Lambert International Airport?

The data is based on the past 12 months and shows the average ticket prices from O'Hare International Airport to St. Louis Lambert International Airport for each day of the week in the Trip.com database.

Based on Trip.com's data from the past 12 months, the cheapest departure day from O'Hare International Airport to St. Louis Lambert International Airport is Tuesday, with average prices usually lower than other days. Avoid departing on Monday as prices are typically highest on that day.

US$287
US$227
US$166
US$106
  • US$287
    Mon
  • US$166
    Tue
  • US$242
    Wed
  • US$255
    Thu
  • US$268
    Fri
  • US$251
    Sat
  • US$213
    Sun

Which airline offers the cheapest flights from O'Hare International Airport to St. Louis Lambert International Airport?

The cheapest airline flying from O'Hare International Airport to St. Louis Lambert International Airport is American Airlines (from US$59) among 5 carriers operating this route. Based on Trip.com's latest 7-day flight data.

American Airlines
From US$59
Frontier Airlines
From US$60
Delta Air Lines
From US$66
United Airlines
From US$85
Alaska Airlines
From US$2,800

Find more flights and airlines

What is the flight schedule from O'Hare International Airport to St. Louis Lambert International Airport?

Check the schedule for flights from Chicago to St. Louis and find the flight that best matches your travel plans.

Flight info.
Departure
Arrival
Weekly Schedule

  1. AA3069

    O'Hare International Airport

    23:05

    ORD

    1h 22m

    00:27

    STL

    S M T W T F S
    Search

  2. AA2444

    O'Hare International Airport

    19:18

    ORD

    1h 26m

    20:44

    STL

    S M T W T F S
    Search

  3. F91596

    O'Hare International Airport

    06:20

    ORD

    2h 9m

    Direct

    09:29

    ATL

    S M T W T F S
    Search

  4. F94473

    Hartsfield–Jackson Atlanta International Airport

    12:25

    ATL

    1h 45m

    Direct

    13:10

    STL

    S - T - T - -

  5. F91483

    O'Hare International Airport

    07:25

    ORD

    3h 9m

    Direct

    09:34

    DEN

    S M T W T F S
    Search

  6. F93302

    Denver International Airport

    16:12

    DEN

    2h 3m

    Direct

    19:15

    STL

    S - T - T F -
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About O'Hare International Airport and St. Louis Lambert International Airport

Learn about O'Hare International Airport (ORD) and St. Louis Lambert International Airport (STL) — including location, terminals, transportation, and travel tips.

Flight distance416.17km
Cheapest one-way ticket priceUS$59
Cheapest return ticket priceUS$110

FAQs for O'Hare International Airport to St. Louis Lambert International Airport Flights

  • How long is the flight from O'Hare International Airport to St. Louis Lambert International Airport?

    O'Hare International Airport to St. Louis Lambert International Airport takes about 54 minutes on average. Actual flight time may vary depending on route, weather and air traffic.
  • There are around 14 daily flights from O'Hare International Airport (ORD) to St. Louis Lambert International Airport (STL).
  • The earliest flight from O'Hare International Airport to St. Louis Lambert International Airport departs at 08:40, and the last departs at 23:05, with about 16 flights per day. Flight times may change, so please check the latest departure and arrival times before you travel.
  • The route from O'Hare International Airport (ORD) to St. Louis Lambert International Airport (STL) is quite popular. Without considering departure times or holidays, tickets cost around US$158 in October, the most expensive month to book this route.
    • The distance from St. Louis Lambert International Airport to downtown is about 20km, by taxi about 40 minutes.
  • American Airlines is a very popular airline operating an average of 2513 flights per month.
  • One-way flights from O'Hare International Airport to St. Louis Lambert International Airport currently start from US$59, and round-trip fares start from US$110. The current lowest fare is a American Airlines flight departing on Tue, Nov 3; prices may vary depending on availability.
  • Yes. United Airlines, American Airlines and GoJet Airlines operate direct flights from O'Hare International Airport to St. Louis Lambert International Airport, with an average flight time of 46 minutes, and around 97 weekly flights. Actual flight frequency may vary by season.
  • Based on Trip.com flight data for departures within the next 30 days with at most one stop, the average one-way price from O'Hare International Airport to St. Louis Lambert International Airport is US$171. Prices may vary depending on the departure date, airline, and availability.
  • O'Hare International Airport to St. Louis Lambert International Airport operates around 69 weekly flights, mainly by United Airlines, American Airlines and GoJet Airlines. Actual frequency may vary during holidays and seasonal schedule adjustments.
  • Enter O'Hare International Airport and St. Louis Lambert International Airport, select your departure date and number of passengers, then compare flights by price, flight duration, and baggage allowance. Once you've chosen a fare, review the change and refund rules, fill in passenger details, and pay to receive your booking confirmation.

Find Cheap Flights with Trip.com

Note: Prices shown on this page are the estimated lowest prices and include all taxes and fees found in the last 24 hours.

Book with no extra fees

Prices displayed on this page are all-inclusive (including taxes, fuel surcharges, civil aviation development fund, etc.), with all fees confirmed before payment. Fees for luggage, meals, Wi-Fi, or other additional services are also included as shown in the flight cards.

Real-time pricing updates

Prices, availability, and travel information on this page have been updated within the last 24 hours—sometimes even in real time. The more popular the route, the more accurate the data.

Change & Cancellation Policy

Trip.com shows the cancellation and change policies for each flight ticket during the booking process, including any fees and applicable conditions. Please check the following scenarios:
Voluntary cancellation/change:
To request a change or cancellation, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and flight segment, and submit your request. Please note that additional charges may apply according to the airline's ticket policy.
Cancellation/change due to a flight schedule change:
If the flight schedule has changed and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For more details about change and cancellation policies, please visit the customer support pages.