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

Explore the cheapest one-way and round-trip flights from St. Louis Lambert International Airport to O'Hare Intl. Airport over the next 90 days, with one-way fares from €52 and round-trip from €99. Based on Trip.com's latest 7-day flight data.

      • Cheapest nonstop
        STL 5:00 AM
        1h 26m
        Nonstop
        ORD 6:26 AM
        St. Louis - Chicago | Sun, Oct 18 | American Airlines
        ORD 11:00 PM
        1h 19m
        Nonstop
        STL 12:19 AM
        Chicago - St. Louis | Tue, Oct 20 | American Airlines
        €99 €149
        34% off
        34% off
        €149 €99
      • STL 5:00 AM
        1h 31m
        Nonstop
        ORD 6:31 AM
        St. Louis - Chicago | Tue, Oct 6 | American Airlines
        ORD 11:00 PM
        1h 19m
        Nonstop
        STL 12:19 AM
        Chicago - St. Louis | Tue, Oct 13 | American Airlines
        €99 €149
        34% off
        34% off
        €149 €99
      • STL 11:35 AM
        1h 25m
        Nonstop
        ORD 1:00 PM
        St. Louis - Chicago | Fri, Nov 13 | American Airlines
        ORD 11:15 AM
        1h 29m
        Nonstop
        STL 12:44 PM
        Chicago - St. Louis | Fri, Nov 20 | American Airlines
        €100 €149
        33% off
        33% off
        €149 €100
      • STL 5:00 AM
        1h 26m
        Nonstop
        ORD 6:26 AM
        St. Louis - Chicago | Fri, Oct 16 | American Airlines
        MDW 10:05 PM
        1h 15m
        Nonstop
        STL 11:20 PM
        Chicago - St. Louis | Tue, Oct 20 |
        €100
        33% off
        €149 €100
      • STL 5:00 AM
        1h 26m
        Nonstop
        ORD 6:26 AM
        St. Louis - Chicago | Fri, Oct 23 | American Airlines
        MDW 10:05 PM
        1h 15m
        Nonstop
        STL 11:20 PM
        Chicago - St. Louis | Tue, Oct 27 |
        €100
        33% off
        €149 €100
      • STL 7:29 AM
        1h 31m
        Nonstop
        ORD 9:00 AM
        St. Louis - Chicago | Sun, Oct 11 | American Airlines
        ORD 11:00 PM
        1h 19m
        Nonstop
        STL 12:19 AM
        Chicago - St. Louis | Tue, Oct 13 | American Airlines
        €103
        31% off
        €149 €103
      • STL 5:05 AM
        1h 24m
        Nonstop
        ORD 6:29 AM
        St. Louis - Chicago | Tue, Nov 3 | American Airlines
        ORD 10:39 PM
        1h 20m
        Nonstop
        STL 11:59 PM
        Chicago - St. Louis | Tue, Nov 10 | American Airlines
        €103
        31% off
        €149 €103
      • STL 5:00 AM
        1h 26m
        Nonstop
        ORD 6:26 AM
        St. Louis - Chicago | Thu, Oct 15 | American Airlines
        ORD 11:00 PM
        1h 19m
        Nonstop
        STL 12:19 AM
        Chicago - St. Louis | Tue, Oct 20 | American Airlines
        €104
        30% off
        €149 €104
      • STL 5:00 AM
        1h 26m
        Nonstop
        ORD 6:26 AM
        St. Louis - Chicago | Wed, Oct 14 | American Airlines
        ORD 11:00 PM
        1h 19m
        Nonstop
        STL 12:19 AM
        Chicago - St. Louis | Tue, Oct 20 | American Airlines
        €104
        30% off
        €149 €104
      • STL 11:31 AM
        1h 28m
        Nonstop
        ORD 12:59 PM
        St. Louis - Chicago | Wed, Oct 21 | American Airlines
        ORD 11:00 PM
        1h 19m
        Nonstop
        STL 12:19 AM
        Chicago - St. Louis | Thu, Oct 22 | American Airlines
        €104
        30% off
        €149 €104
      • STL 11:23 AM
        1h 28m
        Nonstop
        ORD 12:51 PM
        St. Louis - Chicago | Sun, Nov 8 | American Airlines
        ORD 10:39 PM
        1h 20m
        Nonstop
        STL 11:59 PM
        Chicago - St. Louis | Sun, Nov 8 | American Airlines
        €104
        30% off
        €149 €104
      • STL 5:00 AM
        1h 26m
        Nonstop
        ORD 6:26 AM
        St. Louis - Chicago | Thu, Oct 8 | American Airlines
        ORD 7:34 PM
        1h 23m
        Nonstop
        STL 8:57 PM
        Chicago - St. Louis | Thu, Oct 15 | American Airlines
        €104
        30% off
        €149 €104
      • STL 1:00 PM
        17h 25m
        1 stop
        CHI 2:00 PM
        St. Louis - Chicago | Tue, Oct 6 | Normal Airline
        CHI 3:00 PM
        6h
        Nonstop
        STL 4:00 PM
        Chicago - St. Louis | Thu, Oct 8 | Normal Airline
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      • Cheapest nonstop
        STL 8:15 PM
        1h 36m
        Nonstop
        ORD 9:51 PM
        St. Louis - Chicago | Wed, Nov 11 | American Airlines
        €52 €98
        47% off
        47% off
        €98 €52
      • STL 7:28 AM
        1h 31m
        Nonstop
        ORD 8:59 AM
        St. Louis - Chicago | Sat, Oct 24 | American Airlines
        €52 €98
        47% off
        47% off
        €98 €52
      • STL 6:00 AM
        1h 36m
        Nonstop
        ORD 7:36 AM
        St. Louis - Chicago | Thu, Nov 26 | American Airlines
        €52 €98
        47% off
        47% off
        €98 €52
      • STL 11:31 AM
        1h 28m
        Nonstop
        ORD 12:59 PM
        St. Louis - Chicago | Mon, Oct 19 | American Airlines
        €53
        46% off
        €98 €53
      • STL 8:15 PM
        1h 36m
        Nonstop
        ORD 9:51 PM
        St. Louis - Chicago | Sat, Nov 14 | American Airlines
        €55
        44% off
        €98 €55
      • STL 8:15 PM
        1h 36m
        Nonstop
        ORD 9:51 PM
        St. Louis - Chicago | Sat, Nov 7 | American Airlines
        €55
        44% off
        €98 €55
      • STL 5:53 PM
        6h 38m
        1 stop
        ORD 12:31 AM
        St. Louis - Chicago | Mon, Oct 19 | Frontier Airlines
        €53
        46% off
        €98 €53
      • STL 3:30 PM
        6h 3m
        1 stop
        ORD 9:33 PM
        St. Louis - Chicago | Sat, Nov 14 | Delta Air Lines
        €65
        34% off
        €98 €65
      • STL 4:22 PM
        4h 8m
        1 stop
        ORD 8:30 PM
        St. Louis - Chicago | Sat, Oct 24 | Delta Air Lines
        €65
        34% off
        €98 €65
      • STL 10:20 AM
        5h 58m
        1 stop
        ORD 4:18 PM
        St. Louis - Chicago | Wed, Nov 11 | Delta Air Lines
        €65
        34% off
        €98 €65
      • STL 1:00 PM
        6h 39m
        1 stop
        ORD 7:39 PM
        St. Louis - Chicago | Thu, Nov 26 | Delta Air Lines
        €66
        33% off
        €98 €66
      • STL 5:53 PM
        6h 33m
        1 stop
        ORD 12:26 AM
        St. Louis - Chicago | Fri, Oct 23 | Frontier Airlines
        €68
        31% off
        €98 €68
      • STL 1:00 PM
        17h 25m
        1 stop
        CHI 2:00 PM
        St. Louis - Chicago | Tue, Oct 6 | Normal Airline
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Displayed flight fares from St. Louis Lambert International Airport to O'Hare Intl. Airport are based on average prices across airlines for the next 3 months, according to the latest Trip.com database.

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

What is the cheapest month for one-way flights from St. Louis Lambert International Airport to O'Hare Intl. Airport?

Data is based on average one-way flight prices from St. Louis Lambert International Airport to O'Hare Intl. Airport in Trip.com's database over the past 12 months.

Based on Trip.com’s data from the past 12 months, if you’re looking for a low-cost one-way ticket from St. Louis Lambert International Airport to O'Hare Intl. Airport, the best time to buy is in April, with an average price of €96. You’ll want to avoid December, when the average price can reach as high as €288.

€288
€192
€96
0
    Cheapest
  • €110
    Feb
  • €126
    Mar
  • €96
    Apr
  • €148
    May
  • €155
    Jun
  • €192
    Jul
  • €204
    Aug
  • €118
    Sep
  • €99
    Oct
  • €253
    Nov
  • €288
    Dec
  • €262
    Jan

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

The data is based on the past 12 months and shows the average ticket prices from St. Louis Lambert International Airport to O'Hare Intl. 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 day to depart from St. Louis Lambert International Airport to O'Hare Intl. Airport is Saturday, with average fares typically lower than other days. You’ll want to avoid flying on Friday, as ticket prices are usually the highest that day.

€272
€206
€140
€74
    Cheapest
  • €203
    Mon
  • €220
    Tue
  • €147
    Wed
  • €265
    Thu
  • €272
    Fri
  • €140
    Sat
  • €256
    Sun

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

The cheapest airline flying from St. Louis Lambert International Airport to O'Hare Intl. Airport is American Airlines (from €52) among 4 carriers operating this route. Based on Trip.com's latest 7-day flight data.

American Airlines
From €52
Frontier Airlines
From €53
Delta Air Lines
From €65
United Airlines
From €77

Find more flights and airlines

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

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

Flight info.
Departure
Arrival
Weekly Schedule

  1. AA1926

    St. Louis Lambert International Airport

    7:23 AM

    STL

    1h 27m

    8:50 AM

    ORD

    S M T W T F S
    Search

  2. AA2208

    St. Louis Lambert International Airport

    11:31 AM

    STL

    1h 28m

    12:59 PM

    ORD

    S M T W T F S
    Search

  3. AA1997

    St. Louis Lambert International Airport

    7:28 AM

    STL

    1h 31m

    8:59 AM

    ORD

    S M T W T F S
    Search

  4. UA4423

    St. Louis Lambert International Airport

    6:00 AM

    STL

    1h 31m

    7:31 AM

    ORD

    S - T W T F S
    Search

  5. DL1371

    St. Louis Lambert International Airport

    1:55 PM

    STL

    1h 33m

    Nonstop

    4:28 PM

    DTW

    S M T W T F S
    Search

  6. DL1665

    Detroit Metropolitan Wayne County Airport

    8:10 PM

    DTW

    1h 27m

    Nonstop

    8:37 PM

    ORD

    S M T W T F S

  7. DL2868

    St. Louis Lambert International Airport

    10:29 AM

    STL

    1h 33m

    Nonstop

    1:02 PM

    DTW

    S M T W T F S
    Search

  8. DL2358

    Detroit Metropolitan Wayne County Airport

    3:50 PM

    DTW

    1h 23m

    Nonstop

    4:13 PM

    ORD

    S M T W T F S

  9. DL1626

    St. Louis Lambert International Airport

    6:45 AM

    STL

    1h 33m

    Nonstop

    9:18 AM

    DTW

    S M T W T F S
    Search

  10. DL1716

    Detroit Metropolitan Wayne County Airport

    12:30 PM

    DTW

    1h 29m

    Nonstop

    12:59 PM

    ORD

    S M T W T F S

  11. F94741

    St. Louis Lambert International Airport

    5:53 PM

    STL

    2h 1m

    Nonstop

    7:54 PM

    DFW

    - - - - T - S
    Search

  12. F93244

    Dallas Fort Worth International Airport

    9:52 PM

    DFW

    2h 34m

    Nonstop

    12:26 AM

    ORD

    S - - W T F S

  13. DL5325

    St. Louis Lambert International Airport

    9:45 AM

    STL

    1h 38m

    Nonstop

    11:23 AM

    MSP

    S M T W T - -
    Search

  14. DL1306

    Minneapolis-Saint Paul International Airport

    3:25 PM

    MSP

    1h 34m

    Nonstop

    4:59 PM

    ORD

    S M T W T - S

  15. F94567

    St. Louis Lambert International Airport

    7:42 PM

    STL

    2h 27m

    Nonstop

    9:09 PM

    DEN

    S - T - T F -
    Search

  16. F93174

    Denver International Airport

    8:55 PM

    DEN

    2h 26m

    Nonstop

    12:21 AM

    ORD

    S M - W T F S
Find more flights and airlines

About St. Louis Lambert International Airport and O'Hare Intl. Airport

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

Flight distance 416.17 km
Cheapest one-way ticket price €52
Cheapest return ticket price €99

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

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

    St. Louis Lambert International Airport to O'Hare Intl. 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 St. Louis Lambert International Airport (STL) to O'Hare Intl. Airport (ORD).
  • The earliest flight from St. Louis Lambert International Airport to O'Hare Intl. Airport departs at 05:00, and the last departs at 19:01, with about 20 flights per day. Flight times may change, so please check the latest departure and arrival times before you travel.
  • The route from St. Louis Lambert International Airport (STL) to O'Hare Intl. Airport (ORD) is quite popular. Without considering departure times or holidays, tickets cost around €203 in October, the most expensive month to book this route.
  • The earliest flight departs from St. Louis Lambert International Airport (STL) at 06:00 and arrives in O'Hare Intl. Airport (ORD) at 07:23.
  • The latest flight departs from St. Louis Lambert International Airport (STL) at 20:05 and arrives in O'Hare Intl. Airport (ORD) at 21:30.
    • The distance from O'Hare International Airport to downtown is about 25 km. It takes about 40 minutes by taxi.
    • The distance from Chicago Midway International Airport to downtown is about 14 km. It takes about 30 minutes by taxi.
  • The closest airport to O'Hare Intl. Airport (ORD) is Chicago Midway International Airport. The distance is around 25 km.
  • American Airlines is a very popular airline operating an average of 2145 flights per month.
  • One-way flights from St. Louis Lambert International Airport to O'Hare Intl. Airport currently start from €52, and round-trip fares start from €99. The current lowest fare is a American Airlines flight departing on Wed, Nov 11; prices may vary depending on availability.
  • Yes. United Airlines, American Airlines and GoJet Airlines operate direct flights from St. Louis Lambert International Airport to O'Hare Intl. Airport, with an average flight time of 54 minutes, and around 98 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 St. Louis Lambert International Airport to O'Hare Intl. Airport is €167. Prices may vary depending on the departure date, airline, and availability.
  • St. Louis Lambert International Airport to O'Hare Intl. Airport operates around 98 weekly flights, mainly by United Airlines, American Airlines and GoJet Airlines. Actual frequency may vary during holidays and seasonal schedule adjustments.
  • Enter St. Louis Lambert International Airport and O'Hare Intl. 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.

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

Book with no extra fees

Prices displayed in this page are all-inclusive prices (incl. taxes, fuel surcharge, civil aviation development fund, etc) with all fees confirmed before payment. Fees for luggage, meals, WLAN, 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 were updated within last 24 hours—even in real-time. The more popular the route, the more precise the data.

Change & Cancellation Policy

Trip.com displays flight cancellation and change policies for each flight ticket during the booking process, including fees and applicable conditions. Please check the following scenarios:
Voluntary cancellation/change:
To submit a change or cancellation request, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and segment, and submit a request. Please note that additional charges may apply according to the airline ticket policy.
Cancellation/change due to a flight schedule change:
If the flight has been rescheduled 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 check the customer support pages.