Travel with Axel,
get the best price.

Route overview: Milwaukee to Saint Louis (STL) flight deals

Milwaukee → Saint Louis

Dec 13, 2026 · return Dec 16, 2026

MKE → STL1 adulteconomyRound trip

7 flight options · 4 airlines

Nonstop flights

Sun, Dec 13 – Wed, Dec 16

Southwest Airlines
3:40 pmMKE
1h 20m
Nonstop
5:00 pmSTL
Southwest Airlines
8:30 amSTL
1h 10m
Nonstop
9:40 amMKE

Round-trip total · 1 adult · Taxes included

Sun, Dec 13 – Wed, Dec 16

Southwest Airlines
7:55 amMKE
1h 25m
Nonstop
9:20 amSTL
Southwest Airlines
8:30 amSTL
1h 10m
Nonstop
9:40 amMKE

Round-trip total · 1 adult · Taxes included

One-stop flights

Sun, Dec 13 – Wed, Dec 16

United Airlines
7:45 amMKE
4h 37m
ORD · 1h 47m
12:22 pmSTL
United Airlines
5:25 amSTL
6h 3m
ORD · 3h 27m
11:28 amMKE

Round-trip total · 1 adult · Taxes included

Sun, Dec 13 – Wed, Dec 16

American Airlines
2:51 pmMKE
5h 1m
ORD · 2h 7m
7:52 pmSTL
American Airlines
11:37 amSTL
4h 47m
ORD · 2h 18m
4:24 pmMKE

Round-trip total · 1 adult · Taxes included

Sun, Dec 13 – Wed, Dec 16

Delta Air Lines
1:12 pmMKE
4h 8m
DTW · 1h 9m
5:20 pmSTL
Delta Air Lines
2:17 pmSTL
5h 48m
DTW · 2h 54m
8:05 pmMKE

Round-trip total · 1 adult · Taxes included

Sun, Dec 13 – Wed, Dec 16

Southwest Airlines
9:45 amMKE
5h 40m
MCI · 3h
3:25 pmSTL
Southwest Airlines
8:30 amSTL
1h 10m
Nonstop
9:40 amMKE

Round-trip total · 1 adult · Taxes included

Sun, Dec 13 – Wed, Dec 16

Southwest Airlines
6:20 amMKE
4h 40m
MDW · 2h 20m
11:00 amSTL
Southwest Airlines
8:30 amSTL
1h 10m
Nonstop
9:40 amMKE

Round-trip total · 1 adult · Taxes included

Make this trip yours

MKE ⇄ STL

Economy

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

No account needed to see prices.

Already have an account? Log in

Why book with Axel
  • A real airline bookingThe booking is in the airline’s own system under your name. After you book, Southwest 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.
  • Not satisfied? Full refund.If you are unhappy with the experience for any reason, or simply change your mind, cancel within 24 hours of booking (departure 7+ days away) and we refund you in full. We stand by our product. 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

Explore this route

All dates for this routeDec 12, 2026 → Dec 15, 2026Dec 14, 2026 → Dec 17, 2026
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.

Route overview: Milwaukee to Saint Louis (STL) flight deals

Exact travel datesAirlineFlightsTotal pricePrice issued (UTC)
2026-12-13 → 2026-12-16Southwest AirlinesWN3113 / WN2589$260.002026-10-29T01:30:26Z
2026-12-13 → 2026-12-16United AirlinesUA5412 + UA1857 / UA4439 + UA5234$320.002026-10-29T01:30:26Z
2026-12-13 → 2026-12-16American AirlinesAA4920 + AA4372 / AA3198 + AA6282$330.002026-10-29T01:30:26Z
2026-12-13 → 2026-12-16Delta Air LinesDL3848 + DL2822 / DL1371 + DL3724$350.002026-10-29T01:30:26Z
2026-12-13 → 2026-12-16Southwest AirlinesWN3112 / WN2589$260.002026-10-29T01:30:26Z
2026-12-13 → 2026-12-16Southwest AirlinesWN1086 + WN2714 / WN2589$275.002026-10-29T01:30:26Z
2026-12-13 → 2026-12-16Southwest AirlinesWN4802 + WN1089 / WN2589$275.002026-10-29T01:30:26Z

2026-12-13 → 2026-12-16 · $260.00

  • Southwest Airlines WN3113: MKE 2026-12-13 15:40:00 → STL 2026-12-13 17:00:00; nonstop; 80 minutes. Local airport times.
  • Southwest Airlines WN2589: STL 2026-12-16 08:30:00 → MKE 2026-12-16 09:40:00; nonstop; 70 minutes. Local airport times.

2026-12-13 → 2026-12-16 · $320.00

  • United Airlines UA5412 / UA1857: MKE 2026-12-13 07:45:00 → STL 2026-12-13 12:22:00; 1 stop(s) via ORD; 277 minutes. Local airport times.
    • UA5412: MKE 2026-12-13 07:45:00 → ORD 2026-12-13 09:05:00; layover at ORD: 107 minutes.
    • UA1857: ORD 2026-12-13 10:52:00 → STL 2026-12-13 12:22:00.
  • United Airlines UA4439 / UA5234: STL 2026-12-16 05:25:00 → MKE 2026-12-16 11:28:00; 1 stop(s) via ORD; 363 minutes. Local airport times.
    • UA4439: STL 2026-12-16 05:25:00 → ORD 2026-12-16 06:58:00; layover at ORD: 207 minutes.
    • UA5234: ORD 2026-12-16 10:25:00 → MKE 2026-12-16 11:28:00.

2026-12-13 → 2026-12-16 · $330.00

  • American Airlines AA4920 / AA4372: MKE 2026-12-13 14:51:00 → STL 2026-12-13 19:52:00; 1 stop(s) via ORD; 301 minutes. Local airport times.
    • AA4920: MKE 2026-12-13 14:51:00 → ORD 2026-12-13 16:12:00; layover at ORD: 127 minutes.
    • AA4372: ORD 2026-12-13 18:19:00 → STL 2026-12-13 19:52:00.
  • American Airlines AA3198 / AA6282: STL 2026-12-16 11:37:00 → MKE 2026-12-16 16:24:00; 1 stop(s) via ORD; 287 minutes. Local airport times.
    • AA3198: STL 2026-12-16 11:37:00 → ORD 2026-12-16 12:59:00; layover at ORD: 138 minutes.
    • AA6282: ORD 2026-12-16 15:17:00 → MKE 2026-12-16 16:24:00.

2026-12-13 → 2026-12-16 · $350.00

  • Delta Air Lines DL3848 / DL2822: MKE 2026-12-13 13:12:00 → STL 2026-12-13 17:20:00; 1 stop(s) via DTW; 248 minutes. Local airport times.
    • DL3848: MKE 2026-12-13 13:12:00 → DTW 2026-12-13 15:24:00; layover at DTW: 69 minutes.
    • DL2822: DTW 2026-12-13 16:33:00 → STL 2026-12-13 17:20:00.
  • Delta Air Lines DL1371 / DL3724: STL 2026-12-16 14:17:00 → MKE 2026-12-16 20:05:00; 1 stop(s) via DTW; 348 minutes. Local airport times.
    • DL1371: STL 2026-12-16 14:17:00 → DTW 2026-12-16 16:53:00; layover at DTW: 174 minutes.
    • DL3724: DTW 2026-12-16 19:47:00 → MKE 2026-12-16 20:05:00.

2026-12-13 → 2026-12-16 · $260.00

  • Southwest Airlines WN3112: MKE 2026-12-13 07:55:00 → STL 2026-12-13 09:20:00; nonstop; 85 minutes. Local airport times.
  • Southwest Airlines WN2589: STL 2026-12-16 08:30:00 → MKE 2026-12-16 09:40:00; nonstop; 70 minutes. Local airport times.

2026-12-13 → 2026-12-16 · $275.00

  • Southwest Airlines WN1086 / WN2714: MKE 2026-12-13 09:45:00 → STL 2026-12-13 15:25:00; 1 stop(s) via MCI; 340 minutes. Local airport times.
    • WN1086: MKE 2026-12-13 09:45:00 → MCI 2026-12-13 11:20:00; layover at MCI: 180 minutes.
    • WN2714: MCI 2026-12-13 14:20:00 → STL 2026-12-13 15:25:00.
  • Southwest Airlines WN2589: STL 2026-12-16 08:30:00 → MKE 2026-12-16 09:40:00; nonstop; 70 minutes. Local airport times.

2026-12-13 → 2026-12-16 · $275.00

  • Southwest Airlines WN4802 / WN1089: MKE 2026-12-13 06:20:00 → STL 2026-12-13 11:00:00; 1 stop(s) via MDW; 280 minutes. Local airport times.
    • WN4802: MKE 2026-12-13 06:20:00 → MDW 2026-12-13 07:20:00; layover at MDW: 140 minutes.
    • WN1089: MDW 2026-12-13 09:40:00 → STL 2026-12-13 11:00:00.
  • Southwest Airlines WN2589: STL 2026-12-16 08:30:00 → MKE 2026-12-16 09:40:00; nonstop; 70 minutes. Local airport times.

Explore this route