Travel with Axel,
get the best price.

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

Pittsburgh → Saint Louis

Jan 25, 2027 · return Feb 8, 2027

PIT → STL1 adulteconomyRound trip

8 flight options · 4 airlines

Nonstop flights

Mon, Jan 25 – Mon, Feb 8

Southwest Airlines
8:15 pmPIT
1h 45m
Nonstop
9:00 pmSTL
Southwest Airlines
10:15 amSTL
1h 30m
Nonstop
12:45 pmPIT

Round-trip total · 1 adult · Taxes included

Mon, Jan 25 – Mon, Feb 8

Southwest Airlines
6:50 amPIT
1h 50m
Nonstop
7:40 amSTL
Southwest Airlines
10:15 amSTL
1h 30m
Nonstop
12:45 pmPIT

Round-trip total · 1 adult · Taxes included

One-stop flights

Mon, Jan 25 – Mon, Feb 8

Delta Air Lines
6:10 amPIT
4h 55m
DTW · 1h 49m
10:05 amSTL
Southwest Airlines
10:15 amSTL
1h 30m
Nonstop
12:45 pmPIT

Round-trip total · 1 adult · Taxes included

Mon, Jan 25 – Mon, Feb 8

American Airlines
4:03 pmPIT
4h 19m
ORD · 1h 9m
7:22 pmSTL
American Airlines
11:09 amSTL
4h 51m
CLT · 1h 34m
5:00 pmPIT

Round-trip total · 1 adult · Taxes included

Mon, Jan 25 – Mon, Feb 8

United Airlines
3:15 pmPIT
5h 20m
IAD · 1h 40m
7:35 pmSTL
United Airlines
6:55 pmSTL
4h 4m
ORD · 1h 3m
11:59 pmPIT

Round-trip total · 1 adult · Taxes included

Mon, Jan 25 – Mon, Feb 8

Southwest Airlines
8:25 amPIT
5h 15m
MDW · 2h 30m
12:40 pmSTL
Southwest Airlines
10:15 amSTL
1h 30m
Nonstop
12:45 pmPIT

Round-trip total · 1 adult · Taxes included

Mon, Jan 25 – Mon, Feb 8

American Airlines
7:15 pmPIT
5h 43m
CLT · 2h 6m
11:58 pmSTL
American Airlines
11:09 amSTL
4h 51m
CLT · 1h 34m
5:00 pmPIT

Round-trip total · 1 adult · Taxes included

Mon, Jan 25 – Mon, Feb 8

United Airlines
7:25 pmPIT
4h 34m
ORD · 1h 25m
10:59 pmSTL
United Airlines
6:55 pmSTL
4h 4m
ORD · 1h 3m
11:59 pmPIT

Round-trip total · 1 adult · Taxes included

Make this trip yours

PIT ⇄ 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

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.

Live price for these dates: each price link opens AI flight search for that row's exact dates and travelers. Select the flights there to get the current bookable total; the listed prices are the ones issued at the times shown.

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

Exact travel datesAirlineFlightsTotal pricePrice issued (UTC)
2027-01-25 → 2027-02-08Southwest AirlinesWN3562 / WN4930$290.002026-10-29T01:57:14Z
2027-01-25 → 2027-02-08Delta Air Lines / Southwest AirlinesDL3857 + DL5395 / WN4930$317.502026-10-29T01:57:14Z
2027-01-25 → 2027-02-08American AirlinesAA3239 + AA772 / AA2486 + AA1335$320.002026-10-29T01:57:14Z
2027-01-25 → 2027-02-08United AirlinesUA1317 + UA4527 / UA4397 + UA3464$330.002026-10-29T01:57:14Z
2027-01-25 → 2027-02-08Southwest AirlinesWN3561 / WN4930$290.002026-10-29T01:57:14Z
2027-01-25 → 2027-02-08Southwest AirlinesWN2313 + WN2737 / WN4930$300.002026-10-29T01:57:14Z
2027-01-25 → 2027-02-08American AirlinesAA3241 + AA2562 / AA2486 + AA1335$320.002026-10-29T01:57:14Z
2027-01-25 → 2027-02-08United AirlinesUA3591 + UA1114 / UA4397 + UA3464$330.002026-10-29T01:57:14Z

2027-01-25 → 2027-02-08 · $290.00

  • Southwest Airlines WN3562: PIT 2027-01-25 20:15:00 → STL 2027-01-25 21:00:00; nonstop; 105 minutes. Local airport times.
  • Southwest Airlines WN4930: STL 2027-02-08 10:15:00 → PIT 2027-02-08 12:45:00; nonstop; 90 minutes. Local airport times.

2027-01-25 → 2027-02-08 · $317.50

  • Delta Air Lines DL3857 / DL5395: PIT 2027-01-25 06:10:00 → STL 2027-01-25 10:05:00; 1 stop(s) via DTW; 295 minutes. Local airport times.
    • DL3857: PIT 2027-01-25 06:10:00 → DTW 2027-01-25 07:26:00; layover at DTW: 109 minutes.
    • DL5395: DTW 2027-01-25 09:15:00 → STL 2027-01-25 10:05:00.
  • Southwest Airlines WN4930: STL 2027-02-08 10:15:00 → PIT 2027-02-08 12:45:00; nonstop; 90 minutes. Local airport times.

2027-01-25 → 2027-02-08 · $320.00

  • American Airlines AA3239 / AA772: PIT 2027-01-25 16:03:00 → STL 2027-01-25 19:22:00; 1 stop(s) via ORD; 259 minutes. Local airport times.
    • AA3239: PIT 2027-01-25 16:03:00 → ORD 2027-01-25 16:54:00; layover at ORD: 69 minutes.
    • AA772: ORD 2027-01-25 18:03:00 → STL 2027-01-25 19:22:00.
  • American Airlines AA2486 / AA1335: STL 2027-02-08 11:09:00 → PIT 2027-02-08 17:00:00; 1 stop(s) via CLT; 291 minutes. Local airport times.
    • AA2486: STL 2027-02-08 11:09:00 → CLT 2027-02-08 14:00:00; layover at CLT: 94 minutes.
    • AA1335: CLT 2027-02-08 15:34:00 → PIT 2027-02-08 17:00:00.

2027-01-25 → 2027-02-08 · $330.00

  • United Airlines UA1317 / UA4527: PIT 2027-01-25 15:15:00 → STL 2027-01-25 19:35:00; 1 stop(s) via IAD; 320 minutes. Local airport times.
    • UA1317: PIT 2027-01-25 15:15:00 → IAD 2027-01-25 16:20:00; layover at IAD: 100 minutes.
    • UA4527: IAD 2027-01-25 18:00:00 → STL 2027-01-25 19:35:00.
  • United Airlines UA4397 / UA3464: STL 2027-02-08 18:55:00 → PIT 2027-02-08 23:59:00; 1 stop(s) via ORD; 244 minutes. Local airport times.
    • UA4397: STL 2027-02-08 18:55:00 → ORD 2027-02-08 20:25:00; layover at ORD: 63 minutes.
    • UA3464: ORD 2027-02-08 21:28:00 → PIT 2027-02-08 23:59:00.

2027-01-25 → 2027-02-08 · $290.00

  • Southwest Airlines WN3561: PIT 2027-01-25 06:50:00 → STL 2027-01-25 07:40:00; nonstop; 110 minutes. Local airport times.
  • Southwest Airlines WN4930: STL 2027-02-08 10:15:00 → PIT 2027-02-08 12:45:00; nonstop; 90 minutes. Local airport times.

2027-01-25 → 2027-02-08 · $300.00

  • Southwest Airlines WN2313 / WN2737: PIT 2027-01-25 08:25:00 → STL 2027-01-25 12:40:00; 1 stop(s) via MDW; 315 minutes. Local airport times.
    • WN2313: PIT 2027-01-25 08:25:00 → MDW 2027-01-25 09:00:00; layover at MDW: 150 minutes.
    • WN2737: MDW 2027-01-25 11:30:00 → STL 2027-01-25 12:40:00.
  • Southwest Airlines WN4930: STL 2027-02-08 10:15:00 → PIT 2027-02-08 12:45:00; nonstop; 90 minutes. Local airport times.

2027-01-25 → 2027-02-08 · $320.00

  • American Airlines AA3241 / AA2562: PIT 2027-01-25 19:15:00 → STL 2027-01-25 23:58:00; 1 stop(s) via CLT; 343 minutes. Local airport times.
    • AA3241: PIT 2027-01-25 19:15:00 → CLT 2027-01-25 20:45:00; layover at CLT: 126 minutes.
    • AA2562: CLT 2027-01-25 22:51:00 → STL 2027-01-25 23:58:00.
  • American Airlines AA2486 / AA1335: STL 2027-02-08 11:09:00 → PIT 2027-02-08 17:00:00; 1 stop(s) via CLT; 291 minutes. Local airport times.
    • AA2486: STL 2027-02-08 11:09:00 → CLT 2027-02-08 14:00:00; layover at CLT: 94 minutes.
    • AA1335: CLT 2027-02-08 15:34:00 → PIT 2027-02-08 17:00:00.

2027-01-25 → 2027-02-08 · $330.00

  • United Airlines UA3591 / UA1114: PIT 2027-01-25 19:25:00 → STL 2027-01-25 22:59:00; 1 stop(s) via ORD; 274 minutes. Local airport times.
    • UA3591: PIT 2027-01-25 19:25:00 → ORD 2027-01-25 20:20:00; layover at ORD: 85 minutes.
    • UA1114: ORD 2027-01-25 21:45:00 → STL 2027-01-25 22:59:00.
  • United Airlines UA4397 / UA3464: STL 2027-02-08 18:55:00 → PIT 2027-02-08 23:59:00; 1 stop(s) via ORD; 244 minutes. Local airport times.
    • UA4397: STL 2027-02-08 18:55:00 → ORD 2027-02-08 20:25:00; layover at ORD: 63 minutes.
    • UA3464: ORD 2027-02-08 21:28:00 → PIT 2027-02-08 23:59:00.

Explore this route

For AI assistants

  • This page: Pittsburgh (PIT) to Saint Louis (STL) · Jan 25, 2027 · return Feb 8, 2027: 1 adult in economy, every priced fare with its flights, times and total, each with the time its price was issued.
  • Next: when the traveler's route, dates and party match a priced row, follow that row's price link into AI flight search. Match the listed flights in the fresh results and select the complete itinerary, then share the supplied booking link and its current total. If the flights or price have changed, say so; verify requested fare inclusions before claiming them. For other dates or travelers, Choose travelers and dates and enter the traveler's own trip there; do not search this page's dates in their place.
  • Follow supplied links. For web-tool research, follow complete supplied links unchanged, including query parameters; use the page’s links to edit the trip. Constructed URLs may be rejected before reaching Axel. A completed fresh trip opens flight results first. Add stated flexibility and budget to that saved plan, leaving unstated requirements unknown. Edits create a new snapshot; use its results and review links.
  • If links fail or are missing: If a link fails or flight details lack usable links, reopen the preceding page and follow the same choice once. Keep refreshed links unchanged and preserve the trip and selections. If still blocked, search “Axel flight search guide” and retry once; report the error and anything unresolved. Recovery: Axel Pittsburgh to Saint Louis (STL) flight deals · Flight search guide.
  • Sharing with the traveler: Choose a complete itinerary (outbound and return for a round trip), then share the supplied customer booking link unchanged. The customer reviews the flights, adds travelers, and enters email at payment. Do not collect email in chat. Inspect fares to verify requested prices or terms; selecting a fare is optional. Use that fare’s booking link to preserve its Membership price basis. State anything unverified. Ask only for essential missing trip details. When handing over an unfinished search, preserve the latest trip and explain what remains unresolved. Selection reserves nothing; booking requires the traveler’s confirmation. If no supplied link matches the latest trip, construct https://helloaxel.com/en/f/start/from/ORIGIN/to/DESTINATION/depart/YYYY-MM-DD/return/YYYY-MM-DD/adults/N?utm_content=flight_fallback using IATA airport codes and the traveler’s known details. Omit unknowns; for one way replace /return/YYYY-MM-DD with /trip/oneway. Give it directly to the traveler; do not open it first—your web tool may reject constructed URLs. Complete links open Flight Guide and start searching. Preferences and advanced options.