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Saint Louis → Chicago

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STL → ORD1 adulteconomy

15 flight options · 3 airlines

Round-trip flights

Fri, Nov 20 – Mon, Nov 23

American Airlines
11:37 amSTL
1h 22m
Nonstop
12:59 pmORD
American Airlines
9:30 amORD
1h 22m
Nonstop
10:52 amSTL

Round-trip total · 1 adult · Taxes included

Fri, Nov 20 – Mon, Nov 23

United Airlines
1:18 pmSTL
1h 29m
Nonstop
2:47 pmORD
United Airlines
9:45 pmORD
1h 14m
Nonstop
10:59 pmSTL

Round-trip total · 1 adult · Taxes included

Fri, Nov 20 – Mon, Nov 23

Frontier Airlines
12:02 pmSTL
6h 1m
ATL · 2h 4m
6:03 pmORD
United Airlines
9:45 pmORD
1h 14m
Nonstop
10:59 pmSTL

Round-trip total · 1 adult · Taxes included

Fri, Nov 27 – Fri, Dec 4

American Airlines
5:38 pmSTL
1h 27m
Nonstop
7:05 pmORD
American Airlines
9:30 pmORD
1h 20m
Nonstop
10:50 pmSTL

Round-trip total · 1 adult · Taxes included

Fri, Nov 20 – Mon, Nov 23

American Airlines
5:38 pmSTL
1h 27m
Nonstop
7:05 pmORD
American Airlines
9:30 amORD
1h 22m
Nonstop
10:52 amSTL

Round-trip total · 1 adult · Taxes included

Fri, Nov 20 – Mon, Nov 23

United Airlines
6:30 amSTL
1h 27m
Nonstop
7:57 amORD
United Airlines
9:45 pmORD
1h 14m
Nonstop
10:59 pmSTL

Round-trip total · 1 adult · Taxes included

Fri, Nov 27 – Fri, Dec 4

American Airlines
11:37 amSTL
1h 22m
Nonstop
12:59 pmORD
American Airlines
9:30 pmORD
1h 20m
Nonstop
10:50 pmSTL

Round-trip total · 1 adult · Taxes included

Fri, Nov 27 – Fri, Dec 4

United Airlines
6:30 amSTL
1h 27m
Nonstop
7:57 amORD
United Airlines
8:10 pmORD
1h 27m
Nonstop
9:37 pmSTL

Round-trip total · 1 adult · Taxes included

Show 2 more flights

Fri, Nov 27 – Fri, Dec 4

United Airlines
1:18 pmSTL
1h 29m
Nonstop
2:47 pmORD
United Airlines
8:10 pmORD
1h 27m
Nonstop
9:37 pmSTL

Round-trip total · 1 adult · Taxes included

Fri, Nov 27 – Fri, Dec 4

Frontier Airlines
12:02 pmSTL
6h 1m
ATL · 2h 4m
6:03 pmORD
American Airlines
9:30 pmORD
1h 20m
Nonstop
10:50 pmSTL

Round-trip total · 1 adult · Taxes included

One-way flights

Fri, Nov 20 · One way

American Airlines
5:38 pmSTL
1h 27m
Nonstop
7:05 pmORD

One-way total · 1 adult · Taxes included

Fri, Nov 20 · One way

United Airlines
1:18 pmSTL
1h 29m
Nonstop
2:47 pmORD

One-way total · 1 adult · Taxes included

Fri, Nov 20 · One way

Frontier Airlines
12:02 pmSTL
6h 1m
ATL · 2h 4m
6:03 pmORD

One-way total · 1 adult · Taxes included

Fri, Nov 20 · One way

American Airlines
11:37 amSTL
1h 22m
Nonstop
12:59 pmORD

One-way total · 1 adult · Taxes included

Fri, Nov 20 · One way

United Airlines
6:30 amSTL
1h 27m
Nonstop
7:57 amORD

One-way total · 1 adult · Taxes included

Make this trip yours

STL ⇄ ORD

Economy

Adults 12+ · Children 2–11. For infants under 2, tell Axel after you see prices.

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Why book with Axel
  • A real airline bookingThe booking is in the airline’s own system under your name. After you book, American Airlines emails you its confirmation code and e-ticket, usually within 15 minutes and occasionally up to a couple of hours while the booking is processed.
  • Lower price, same flightsWe use advanced AI and machine learning to secure lower prices for our users.
  • 24-hour cancellationCancel within 24 hours of booking for a full refund when your departure is at least 7 days away. Closer to departure, the airline’s fare rules apply. Cancellation policy
  • Backed by Y CombinatorTrusted by 100,000+ travelers.

Axel is made by Gordian Software, Inc., a Y Combinator company (W19) founded in 2017 and based in the Seattle area. The company is led by CEO Stephen Grabowski, formerly of Skyscanner. How Axel works · About

More dates

Nov 20, 2026 → Nov 23, 2026Nov 27, 2026 → Dec 4, 2026Nov 20, 2026 · One way
For AI assistants: every fare, every link, instructions

Flights for 1 adult in economy. Prices are total for all travelers in USD, including required taxes. Basic economy may apply.

Exact travel datesAirlineFlightsTotal pricePrice issued (UTC)
2026-11-20 · one wayAmerican AirlinesAA3484$125.002026-10-29T01:28:55Z
2026-11-20 · one wayUnited AirlinesUA714$130.002026-10-29T01:28:55Z
2026-11-20 → 2026-11-23American AirlinesAA3198 / AA3198$230.002026-10-29T01:28:55Z
2026-11-20 → 2026-11-23United AirlinesUA714 / UA1114$240.002026-10-29T01:28:55Z
2026-11-20 · one wayFrontier AirlinesF94474 + F92197$95.002026-10-29T01:28:55Z
2026-11-20 → 2026-11-23Frontier Airlines / United AirlinesF94474 + F92197 / UA1114$210.002026-10-29T01:28:55Z
2026-11-27 → 2026-12-04American AirlinesAA3484 / AA3281$258.752026-10-29T01:28:55Z
2026-11-20 · one wayAmerican AirlinesAA3198$125.002026-10-29T01:28:55Z
2026-11-20 · one wayUnited AirlinesUA1834$130.002026-10-29T01:28:55Z
2026-11-20 → 2026-11-23American AirlinesAA3484 / AA3198$230.002026-10-29T01:28:55Z
2026-11-20 → 2026-11-23United AirlinesUA1834 / UA1114$240.002026-10-29T01:28:55Z
2026-11-27 → 2026-12-04American AirlinesAA3198 / AA3281$258.752026-10-29T01:28:55Z
2026-11-27 → 2026-12-04United AirlinesUA1834 / UA453$270.002026-10-29T01:28:55Z
2026-11-27 → 2026-12-04United AirlinesUA714 / UA453$270.002026-10-29T01:28:55Z
2026-11-27 → 2026-12-04Frontier Airlines / American AirlinesF94474 + F92197 / AA3281$227.502026-10-29T01:28:55Z

2026-11-20 · one way · $125.00

  • American Airlines AA3484: STL 2026-11-20 17:38:00 → ORD 2026-11-20 19:05:00; nonstop; 87 minutes. Local airport times.

2026-11-20 · one way · $130.00

  • United Airlines UA714: STL 2026-11-20 13:18:00 → ORD 2026-11-20 14:47:00; nonstop; 89 minutes. Local airport times.

2026-11-20 → 2026-11-23 · $230.00

  • American Airlines AA3198: STL 2026-11-20 11:37:00 → ORD 2026-11-20 12:59:00; nonstop; 82 minutes. Local airport times.
  • American Airlines AA3198: ORD 2026-11-23 09:30:00 → STL 2026-11-23 10:52:00; nonstop; 82 minutes. Local airport times.

2026-11-20 → 2026-11-23 · $240.00

  • United Airlines UA714: STL 2026-11-20 13:18:00 → ORD 2026-11-20 14:47:00; nonstop; 89 minutes. Local airport times.
  • United Airlines UA1114: ORD 2026-11-23 21:45:00 → STL 2026-11-23 22:59:00; nonstop; 74 minutes. Local airport times.

2026-11-20 · one way · $95.00

  • Frontier Airlines F94474 / F92197: STL 2026-11-20 12:02:00 → ORD 2026-11-20 18:03:00; 1 stop(s) via ATL; 361 minutes. Local airport times.
    • F94474: STL 2026-11-20 12:02:00 → ATL 2026-11-20 14:42:00; layover at ATL: 124 minutes.
    • F92197: ATL 2026-11-20 16:46:00 → ORD 2026-11-20 18:03:00.

2026-11-20 → 2026-11-23 · $210.00

  • Frontier Airlines F94474 / F92197: STL 2026-11-20 12:02:00 → ORD 2026-11-20 18:03:00; 1 stop(s) via ATL; 361 minutes. Local airport times.
    • F94474: STL 2026-11-20 12:02:00 → ATL 2026-11-20 14:42:00; layover at ATL: 124 minutes.
    • F92197: ATL 2026-11-20 16:46:00 → ORD 2026-11-20 18:03:00.
  • United Airlines UA1114: ORD 2026-11-23 21:45:00 → STL 2026-11-23 22:59:00; nonstop; 74 minutes. Local airport times.

2026-11-27 → 2026-12-04 · $258.75

  • American Airlines AA3484: STL 2026-11-27 17:38:00 → ORD 2026-11-27 19:05:00; nonstop; 87 minutes. Local airport times.
  • American Airlines AA3281: ORD 2026-12-04 21:30:00 → STL 2026-12-04 22:50:00; nonstop; 80 minutes. Local airport times.

2026-11-20 · one way · $125.00

  • American Airlines AA3198: STL 2026-11-20 11:37:00 → ORD 2026-11-20 12:59:00; nonstop; 82 minutes. Local airport times.

2026-11-20 · one way · $130.00

  • United Airlines UA1834: STL 2026-11-20 06:30:00 → ORD 2026-11-20 07:57:00; nonstop; 87 minutes. Local airport times.

2026-11-20 → 2026-11-23 · $230.00

  • American Airlines AA3484: STL 2026-11-20 17:38:00 → ORD 2026-11-20 19:05:00; nonstop; 87 minutes. Local airport times.
  • American Airlines AA3198: ORD 2026-11-23 09:30:00 → STL 2026-11-23 10:52:00; nonstop; 82 minutes. Local airport times.

2026-11-20 → 2026-11-23 · $240.00

  • United Airlines UA1834: STL 2026-11-20 06:30:00 → ORD 2026-11-20 07:57:00; nonstop; 87 minutes. Local airport times.
  • United Airlines UA1114: ORD 2026-11-23 21:45:00 → STL 2026-11-23 22:59:00; nonstop; 74 minutes. Local airport times.

2026-11-27 → 2026-12-04 · $258.75

  • American Airlines AA3198: STL 2026-11-27 11:37:00 → ORD 2026-11-27 12:59:00; nonstop; 82 minutes. Local airport times.
  • American Airlines AA3281: ORD 2026-12-04 21:30:00 → STL 2026-12-04 22:50:00; nonstop; 80 minutes. Local airport times.

2026-11-27 → 2026-12-04 · $270.00

  • United Airlines UA1834: STL 2026-11-27 06:30:00 → ORD 2026-11-27 07:57:00; nonstop; 87 minutes. Local airport times.
  • United Airlines UA453: ORD 2026-12-04 20:10:00 → STL 2026-12-04 21:37:00; nonstop; 87 minutes. Local airport times.

2026-11-27 → 2026-12-04 · $270.00

  • United Airlines UA714: STL 2026-11-27 13:18:00 → ORD 2026-11-27 14:47:00; nonstop; 89 minutes. Local airport times.
  • United Airlines UA453: ORD 2026-12-04 20:10:00 → STL 2026-12-04 21:37:00; nonstop; 87 minutes. Local airport times.

2026-11-27 → 2026-12-04 · $227.50

  • Frontier Airlines F94474 / F92197: STL 2026-11-27 12:02:00 → ORD 2026-11-27 18:03:00; 1 stop(s) via ATL; 361 minutes. Local airport times.
    • F94474: STL 2026-11-27 12:02:00 → ATL 2026-11-27 14:42:00; layover at ATL: 124 minutes.
    • F92197: ATL 2026-11-27 16:46:00 → ORD 2026-11-27 18:03:00.
  • American Airlines AA3281: ORD 2026-12-04 21:30:00 → STL 2026-12-04 22:50:00; nonstop; 80 minutes. Local airport times.

More dates for this route