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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 $53 and round-trip from $113. Based on Trip.com's latest 7-day flight data.

    • Cheapest nonstop
      STL 11:37 AM
      1h 22m
      Nonstop
      ORD 12:59 PM
      St. Louis - Chicago | Thu, Dec 10 | American Airlines
      ORD 9:10 PM
      1h 22m
      Nonstop
      STL 10:32 PM
      Chicago - St. Louis | Thu, Dec 17 | American Airlines
      $113 $150
      25% off
      25% off
      $150 $113
    • STL 11:35 AM
      1h 25m
      Nonstop
      ORD 1:00 PM
      St. Louis - Chicago | Thu, Nov 12 | American Airlines
      ORD 11:15 AM
      1h 29m
      Nonstop
      STL 12:44 PM
      Chicago - St. Louis | Thu, Nov 19 | American Airlines
      $113 $150
      25% off
      25% off
      $150 $113
    • STL 5:00 AM
      1h 29m
      Nonstop
      ORD 6:29 AM
      St. Louis - Chicago | Thu, Nov 26 | American Airlines
      ORD 9:30 AM
      1h 22m
      Nonstop
      STL 10:52 AM
      Chicago - St. Louis | Thu, Dec 3 | American Airlines
      $115 $150
      23% off
      23% off
      $150 $115
    • STL 5:00 AM
      1h 29m
      Nonstop
      ORD 6:29 AM
      St. Louis - Chicago | Thu, Nov 19 | American Airlines
      MDW 6:30 AM
      1h 15m
      Nonstop
      STL 7:45 AM
      Chicago - St. Louis | Mon, Nov 23 |
      $115
      23% off
      $150 $115
    • STL 5:50 AM
      1h 34m
      Nonstop
      ORD 7:24 AM
      St. Louis - Chicago | Sat, Nov 21 | American Airlines
      ORD 9:10 AM
      1h 24m
      Nonstop
      STL 10:34 AM
      Chicago - St. Louis | Mon, Nov 23 | American Airlines
      $118
      21% off
      $150 $118
    • STL 5:00 AM
      1h 29m
      Nonstop
      ORD 6:29 AM
      St. Louis - Chicago | Tue, Nov 24 | American Airlines
      ORD 8:50 PM
      1h 24m
      Nonstop
      STL 10:14 PM
      Chicago - St. Louis | Fri, Nov 27 | American Airlines
      $118
      21% off
      $150 $118
    • STL 5:00 AM
      1h 29m
      Nonstop
      ORD 6:29 AM
      St. Louis - Chicago | Mon, Nov 23 | American Airlines
      ORD 8:50 PM
      1h 24m
      Nonstop
      STL 10:14 PM
      Chicago - St. Louis | Fri, Nov 27 | American Airlines
      $118
      21% off
      $150 $118
    • STL 5:02 AM
      1h 28m
      Nonstop
      ORD 6:30 AM
      St. Louis - Chicago | Sat, Dec 12 | American Airlines
      ORD 10:39 PM
      1h 20m
      Nonstop
      STL 11:59 PM
      Chicago - St. Louis | Sat, Dec 19 | American Airlines
      $118
      21% off
      $150 $118
    • STL 6:00 AM
      1h 33m
      Nonstop
      ORD 7:33 AM
      St. Louis - Chicago | Fri, Dec 18 | American Airlines
      ORD 6:50 AM
      1h 39m
      Nonstop
      STL 8:29 AM
      Chicago - St. Louis | Mon, Dec 21 | American Airlines
      $118
      21% off
      $150 $118
    • STL 1:00 PM
      17h 25m
      1 stop
      CHI 2:00 PM
      St. Louis - Chicago | Wed, Nov 4 | Normal Airline
      CHI 3:00 PM
      6h
      Nonstop
      STL 4:00 PM
      Chicago - St. Louis | Fri, Nov 6 | Normal Airline
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    • Cheapest
      STL 8:15 PM
      1h 36m
      Nonstop
      ORD 9:51 PM
      St. Louis - Chicago | Sat, Dec 5 | American Airlines
      $53 $78
      32% off
      32% off
      $78 $53
    • STL 4:32 PM
      1h 27m
      Nonstop
      ORD 5:59 PM
      St. Louis - Chicago | Thu, Dec 31 | American Airlines
      $59 $78
      24% off
      24% off
      $78 $59
    • STL 8:22 PM
      1h 38m
      Nonstop
      ORD 10:00 PM
      St. Louis - Chicago | Fri, Jan 1 | American Airlines
      $59 $78
      24% off
      24% off
      $78 $59
    • STL 8:22 PM
      1h 38m
      Nonstop
      ORD 10:00 PM
      St. Louis - Chicago | Tue, Dec 29 | American Airlines
      $59
      24% off
      $78 $59
    • STL 6:00 AM
      1h 33m
      Nonstop
      ORD 7:33 AM
      St. Louis - Chicago | Fri, Dec 25 | American Airlines
      $59
      24% off
      $78 $59
    • STL 8:22 PM
      1h 38m
      Nonstop
      ORD 10:00 PM
      St. Louis - Chicago | Mon, Dec 21 | American Airlines
      $59
      24% off
      $78 $59
    • STL 8:24 PM
      1h 27m
      Nonstop
      ORD 9:51 PM
      St. Louis - Chicago | Wed, Dec 16 | American Airlines
      $59
      24% off
      $78 $59
    • STL 4:32 PM
      1h 27m
      Nonstop
      ORD 5:59 PM
      St. Louis - Chicago | Wed, Dec 30 | American Airlines
      $59
      24% off
      $78 $59
    • STL 4:21 PM
      8h 5m
      1 stop
      ORD 12:26 AM
      St. Louis - Chicago | Mon, Dec 21 | Frontier Airlines
      $59
      24% off
      $78 $59
    • STL 1:00 PM
      17h 25m
      1 stop
      CHI 2:00 PM
      St. Louis - Chicago | Wed, Nov 4 | Normal Airline
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    • Cheapest nonstop
      STL 8:15 PM
      1h 36m
      Nonstop
      ORD 9:51 PM
      St. Louis - Chicago | Sat, Dec 5 | American Airlines
      $53 $78
      32% off
      32% off
      $78 $53
    • STL 4:32 PM
      1h 27m
      Nonstop
      ORD 5:59 PM
      St. Louis - Chicago | Thu, Dec 31 | American Airlines
      $59 $78
      24% off
      24% off
      $78 $59
    • STL 8:22 PM
      1h 38m
      Nonstop
      ORD 10:00 PM
      St. Louis - Chicago | Fri, Jan 1 | American Airlines
      $59 $78
      24% off
      24% off
      $78 $59
    • STL 8:22 PM
      1h 38m
      Nonstop
      ORD 10:00 PM
      St. Louis - Chicago | Tue, Dec 29 | American Airlines
      $59
      24% off
      $78 $59
    • STL 6:00 AM
      1h 33m
      Nonstop
      ORD 7:33 AM
      St. Louis - Chicago | Fri, Dec 25 | American Airlines
      $59
      24% off
      $78 $59
    • STL 8:22 PM
      1h 38m
      Nonstop
      ORD 10:00 PM
      St. Louis - Chicago | Mon, Dec 21 | American Airlines
      $59
      24% off
      $78 $59
    • STL 8:24 PM
      1h 27m
      Nonstop
      ORD 9:51 PM
      St. Louis - Chicago | Wed, Dec 16 | American Airlines
      $59
      24% off
      $78 $59
    • STL 4:32 PM
      1h 27m
      Nonstop
      ORD 5:59 PM
      St. Louis - Chicago | Wed, Dec 30 | American Airlines
      $59
      24% off
      $78 $59
    • STL 8:24 PM
      1h 27m
      Nonstop
      ORD 9:51 PM
      St. Louis - Chicago | Tue, Dec 8 | American Airlines
      $59
      24% off
      $78 $59
    • STL 1:00 PM
      17h 25m
      1 stop
      CHI 2:00 PM
      St. Louis - Chicago | Wed, Nov 4 | Normal Airline
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    • Cheapest nonstop
      STL 4:32 PM
      1h 27m
      Nonstop
      ORD 5:59 PM
      St. Louis - Chicago | Thu, Dec 31 | American Airlines
      $59 $357
      83% off
      83% off
      $357 $59
    • STL 8:22 PM
      1h 38m
      Nonstop
      ORD 10:00 PM
      St. Louis - Chicago | Tue, Dec 29 | American Airlines
      $59 $357
      83% off
      83% off
      $357 $59
    • STL 6:02 AM
      1h 30m
      Nonstop
      ORD 7:32 AM
      St. Louis - Chicago | Wed, Dec 16 | American Airlines
      $59 $357
      83% off
      83% off
      $357 $59
    • STL 6:00 AM
      1h 33m
      Nonstop
      ORD 7:33 AM
      St. Louis - Chicago | Fri, Dec 25 | American Airlines
      $59
      83% off
      $357 $59
    • STL 4:32 PM
      1h 27m
      Nonstop
      ORD 5:59 PM
      St. Louis - Chicago | Mon, Dec 21 | American Airlines
      $59
      83% off
      $357 $59
    • STL 7:26 AM
      1h 34m
      Nonstop
      ORD 9:00 AM
      St. Louis - Chicago | Tue, Nov 24 | American Airlines
      $61
      83% off
      $357 $61
    • STL 8:24 PM
      1h 27m
      Nonstop
      ORD 9:51 PM
      St. Louis - Chicago | Wed, Dec 2 | American Airlines
      $61
      83% off
      $357 $61
    • STL 7:16 AM
      1h 34m
      Nonstop
      ORD 8:50 AM
      St. Louis - Chicago | Thu, Nov 26 | American Airlines
      $61
      83% off
      $357 $61
    • STL 7:27 AM
      1h 33m
      Nonstop
      ORD 9:00 AM
      St. Louis - Chicago | Tue, Dec 15 | American Airlines
      $214
      40% off
      $357 $214
    • STL 1:00 PM
      17h 25m
      1 stop
      CHI 2:00 PM
      St. Louis - Chicago | Wed, Nov 4 | Normal Airline
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    • Cheapest nonstop
      STL 8:15 PM
      1h 36m
      Nonstop
      ORD 9:51 PM
      St. Louis - Chicago | Fri, Nov 6 | American Airlines
      $258 $385
      33% off
      33% off
      $385 $258
    • STL 6:00 AM
      1h 34m
      Nonstop
      ORD 7:34 AM
      St. Louis - Chicago | Tue, Nov 3 | American Airlines
      $263 $385
      32% off
      32% off
      $385 $263
    • STL 7:26 AM
      1h 34m
      Nonstop
      ORD 9:00 AM
      St. Louis - Chicago | Mon, Nov 9 | American Airlines
      $268 $385
      30% off
      30% off
      $385 $268
    • STL 7:26 AM
      1h 34m
      Nonstop
      ORD 9:00 AM
      St. Louis - Chicago | Thu, Nov 5 | American Airlines
      $268
      30% off
      $385 $268
    • STL 6:50 PM
      1h 29m
      Nonstop
      ORD 8:19 PM
      St. Louis - Chicago | Wed, Nov 4 | United Airlines
      $304
      21% off
      $385 $304
    • STL 1:00 PM
      17h 25m
      1 stop
      CHI 2:00 PM
      St. Louis - Chicago | Wed, Nov 4 | Normal Airline
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    • STL 5:40 PM
      1h 25m
      Nonstop
      ORD 7:05 PM
      St. Louis - Chicago | Sat, Dec 12 | United Airlines
      $242 $340
      28% off
      28% off
      $340 $242
    • STL 11:35 AM
      1h 25m
      Nonstop
      ORD 1:00 PM
      St. Louis - Chicago | Wed, Nov 4 | American Airlines
      $268 $340
      21% off
      21% off
      $340 $268
    • STL 4:32 PM
      1h 27m
      Nonstop
      ORD 5:59 PM
      St. Louis - Chicago | Thu, Dec 31 | American Airlines
      $59 $78
      24% off
      24% off
      $78 $59
    • STL 8:24 PM
      1h 27m
      Nonstop
      ORD 9:51 PM
      St. Louis - Chicago | Wed, Dec 16 | American Airlines
      $59
      24% off
      $78 $59
    • STL 4:32 PM
      1h 27m
      Nonstop
      ORD 5:59 PM
      St. Louis - Chicago | Wed, Dec 30 | American Airlines
      $59
      24% off
      $78 $59
    • STL 8:24 PM
      1h 27m
      Nonstop
      ORD 9:51 PM
      St. Louis - Chicago | Tue, Dec 8 | American Airlines
      $59
      24% off
      $78 $59
    • STL 4:32 PM
      1h 27m
      Nonstop
      ORD 5:59 PM
      St. Louis - Chicago | Mon, Dec 21 | American Airlines
      $59
      82% off
      $330 $59
    • STL 11:14 AM
      1h 27m
      Nonstop
      ORD 12:41 PM
      St. Louis - Chicago | Wed, Nov 25 | American Airlines
      $61
      22% off
      $78 $61
    • STL 8:24 PM
      1h 27m
      Nonstop
      ORD 9:51 PM
      St. Louis - Chicago | Wed, Dec 2 | American Airlines
      $61
      82% off
      $330 $61
    • STL 1:00 PM
      17h 25m
      1 stop
      CHI 2:00 PM
      St. Louis - Chicago | Wed, Nov 4 | Normal Airline
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Displayed flight fares from St. Louis to Chicago 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 $109. You’ll want to avoid December, when the average price can reach as high as $327.

$327
$218
$109
0
    Cheapest
  • $125
    Feb
  • $142
    Mar
  • $109
    Apr
  • $167
    May
  • $176
    Jun
  • $218
    Jul
  • $232
    Aug
  • $134
    Sep
  • $112
    Oct
  • $287
    Nov
  • $327
    Dec
  • $298
    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 Wednesday, 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.

$309
$238
$167
$96
    Cheapest
  • $274
    Mon
  • $250
    Tue
  • $167
    Wed
  • $301
    Thu
  • $309
    Fri
  • $176
    Sat
  • $291
    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 $53) among 5 carriers operating this route. Based on Trip.com's latest 7-day flight data.

American Airlines
From $53
Frontier Airlines
From $59
Delta Air Lines
From $67
United Airlines
From $86
Alaska Airlines
From $2,749

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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

    7:24 AM

    STL

    1h 36m

    9:00 AM

    ORD

    S M T W T F S
    Search

  2. DL2822

    St. Louis Lambert International Airport

    5:45 PM

    STL

    1h 35m

    Nonstop

    8:20 PM

    DTW

    S - - - - - S
    Search

  3. DL1665

    Detroit Metropolitan Wayne County Airport

    8:10 PM

    DTW

    1h 27m

    Nonstop

    8:37 PM

    ORD

    S M T W T F S

  4. DL1371

    St. Louis Lambert International Airport

    4:22 PM

    STL

    1h 34m

    Nonstop

    6:56 PM

    DTW

    S M T W T F S
    Search

  5. DL1084

    Detroit Metropolitan Wayne County Airport

    5:49 PM

    DTW

    1h 32m

    Nonstop

    6:21 PM

    ORD

    S - - W - - S

  6. DL1371

    St. Louis Lambert International Airport

    4:22 PM

    STL

    1h 34m

    Nonstop

    6:56 PM

    DTW

    S M T W T F S
    Search

  7. DL1665

    Detroit Metropolitan Wayne County Airport

    8:10 PM

    DTW

    1h 27m

    Nonstop

    8:37 PM

    ORD

    S M T W T F S

  8. DL2868

    St. Louis Lambert International Airport

    10:35 AM

    STL

    1h 34m

    Nonstop

    1:09 PM

    DTW

    S M T W T F S
    Search

  9. DL2358

    Detroit Metropolitan Wayne County Airport

    4:06 PM

    DTW

    1h 26m

    Nonstop

    4:32 PM

    ORD

    S M T W T F S

  10. DL5092

    St. Louis Lambert International Airport

    12:31 PM

    STL

    1h 49m

    Nonstop

    2:20 PM

    MSP

    S - - - - - -
    Search

  11. DL1435

    Minneapolis-Saint Paul International Airport

    5:55 PM

    MSP

    1h 50m

    Nonstop

    7:45 PM

    ORD

    S - - - - - -

  12. DL5325

    St. Louis Lambert International Airport

    9:45 AM

    STL

    1h 38m

    Nonstop

    11:23 AM

    MSP

    S - - - - - -
    Search

  13. DL1471

    Minneapolis-Saint Paul International Airport

    3:15 PM

    MSP

    1h 34m

    Nonstop

    4:49 PM

    ORD

    S - - - - - -
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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 $53
Cheapest return ticket price $113

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 53 minutes on average. Actual flight time may vary depending on route, weather and air traffic.
  • There are around 16 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 24 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 $238 in November, 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 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 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 $53, and round-trip fares start from $113. The current lowest fare is a American Airlines flight departing on Sat, Dec 5; 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 50 minutes, and around 107 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 $280. Prices may vary depending on the departure date, airline, and availability.
  • Porter Airlines are the most popular budget airlines flying from St. Louis Lambert International Airport to O'Hare Intl. Airport, with one-way fares starting from $53. Compare final prices carefully, as baggage, seat selection and payment fees may apply.
  • St. Louis Lambert International Airport to O'Hare Intl. Airport operates around 106 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.