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

Ottawa (YOW) to Saint Louis (STL), Nov 17, 2026: round trips from $425, one way from $245

Ottawa (YOW) to Saint Louis (STL), Nov 17, 2026: round trips from $425, one way from $245 on Axel, checked Oct 29, 2026. Lowest published fares: $425 round trip, Axel-exclusive, Air Canada, 1 stop, Nov 17–18, 2026; $245 one way, Axel-exclusive, Air Canada, 1 stop, Nov 17, 2026; 1 adult, economy, checked Oct 29, 2026.

YOW → STL1 adulteconomyOne way and round trips

30 flight options · 2 airlines

Choose your return date

One-way flights and round trips by duration. Flights for 1 adult in economy. Prices are total for all travelers in USD, including required taxes. Basic economy may apply.

November 2026

Flights for your trip

  1. Tue, Nov 17 · One way

    Air Canada
    10:05 amYOW
    6h 21m
    YYZ · 2h 50m
    3:26 pmSTL

    One-way total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  2. Tue, Nov 17 · One way

    United Airlines
    2:00 pmYOW
    6h 35m
    IAD · 2h 7m
    7:35 pmSTL

    One-way total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  3. Tue, Nov 17 – Wed, Nov 18

    Air Canada
    10:05 amYOW
    6h 21m
    YYZ · 2h 50m
    3:26 pmSTL
    Air Canada
    4:05 pmSTL
    4h 45m
    YYZ · 1h 35m
    9:50 pmYOW

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  4. Tue, Nov 17 – Wed, Nov 18

    United Airlines
    2:00 pmYOW
    6h 35m
    IAD · 2h 7m
    7:35 pmSTL
    United Airlines
    6:00 amSTL
    6h 11m
    EWR · 2h 15m
    1:11 pmYOW

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  5. Tue, Nov 17 – Thu, Nov 19

    Air Canada
    10:05 amYOW
    6h 21m
    YYZ · 2h 50m
    3:26 pmSTL
    Air Canada
    4:05 pmSTL
    4h 45m
    YYZ · 1h 35m
    9:50 pmYOW

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  6. Tue, Nov 17 – Thu, Nov 19

    United Airlines
    2:00 pmYOW
    6h 35m
    IAD · 2h 7m
    7:35 pmSTL
    United Airlines
    6:00 amSTL
    6h 11m
    EWR · 2h 15m
    1:11 pmYOW

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  7. Tue, Nov 17 – Fri, Nov 20

    Air Canada
    10:05 amYOW
    6h 21m
    YYZ · 2h 50m
    3:26 pmSTL
    Air Canada
    4:05 pmSTL
    4h 45m
    YYZ · 1h 35m
    9:50 pmYOW

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  8. Tue, Nov 17 – Fri, Nov 20

    United Airlines
    2:00 pmYOW
    6h 35m
    IAD · 2h 7m
    7:35 pmSTL
    United Airlines
    6:00 amSTL
    6h 11m
    EWR · 2h 15m
    1:11 pmYOW

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  9. Tue, Nov 17 – Sat, Nov 21

    Air Canada
    10:05 amYOW
    6h 21m
    YYZ · 2h 50m
    3:26 pmSTL
    Air Canada
    4:05 pmSTL
    4h 45m
    YYZ · 1h 35m
    9:50 pmYOW

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  10. Tue, Nov 17 – Sat, Nov 21

    United Airlines
    2:00 pmYOW
    6h 35m
    IAD · 2h 7m
    7:35 pmSTL
    United Airlines
    8:30 amSTL
    5h 37m
    IAD · 1h 44m
    3:07 pmYOW

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  11. Tue, Nov 17 – Mon, Nov 23

    Air Canada
    10:05 amYOW
    6h 21m
    YYZ · 2h 50m
    3:26 pmSTL
    Air Canada
    4:05 pmSTL
    4h 45m
    YYZ · 1h 35m
    9:50 pmYOW

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  12. Tue, Nov 17 – Mon, Nov 23

    United Airlines
    2:00 pmYOW
    6h 35m
    IAD · 2h 7m
    7:35 pmSTL
    United Airlines
    6:00 amSTL
    6h 11m
    EWR · 2h 15m
    1:11 pmYOW

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  13. Tue, Nov 17 – Tue, Nov 24

    Air Canada
    10:05 amYOW
    6h 21m
    YYZ · 2h 50m
    3:26 pmSTL
    Air Canada
    4:05 pmSTL
    4h 45m
    YYZ · 1h 35m
    9:50 pmYOW

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  14. Tue, Nov 17 – Tue, Nov 24

    United Airlines
    2:00 pmYOW
    6h 35m
    IAD · 2h 7m
    7:35 pmSTL
    United Airlines
    6:00 amSTL
    6h 11m
    EWR · 2h 15m
    1:11 pmYOW

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  15. Tue, Nov 17 – Wed, Nov 25

    Air Canada
    10:05 amYOW
    6h 21m
    YYZ · 2h 50m
    3:26 pmSTL
    Air Canada
    4:05 pmSTL
    4h 45m
    YYZ · 1h 35m
    9:50 pmYOW

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  16. Tue, Nov 17 – Wed, Nov 25

    United Airlines
    2:00 pmYOW
    6h 35m
    IAD · 2h 7m
    7:35 pmSTL
    United Airlines
    6:00 amSTL
    6h 11m
    EWR · 2h 15m
    1:11 pmYOW

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  17. Tue, Nov 17 – Fri, Nov 27

    Air Canada
    10:05 amYOW
    6h 21m
    YYZ · 2h 50m
    3:26 pmSTL
    Air Canada
    4:05 pmSTL
    4h 45m
    YYZ · 1h 35m
    9:50 pmYOW

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  18. Tue, Nov 17 – Fri, Nov 27

    United Airlines
    2:00 pmYOW
    6h 35m
    IAD · 2h 7m
    7:35 pmSTL
    United Airlines
    6:00 amSTL
    6h 11m
    EWR · 2h 15m
    1:11 pmYOW

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  19. Tue, Nov 17 – Sat, Nov 28

    Air Canada
    10:05 amYOW
    6h 21m
    YYZ · 2h 50m
    3:26 pmSTL
    Air Canada
    4:05 pmSTL
    4h 45m
    YYZ · 1h 35m
    9:50 pmYOW

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  20. Tue, Nov 17 – Sat, Nov 28

    United Airlines
    2:00 pmYOW
    6h 35m
    IAD · 2h 7m
    7:35 pmSTL
    United Airlines
    8:30 amSTL
    5h 37m
    IAD · 1h 44m
    3:07 pmYOW

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  21. Tue, Nov 17 – Sun, Nov 29

    Air Canada
    10:05 amYOW
    6h 21m
    YYZ · 2h 50m
    3:26 pmSTL
    Air Canada
    4:05 pmSTL
    4h 45m
    YYZ · 1h 35m
    9:50 pmYOW

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  22. Tue, Nov 17 – Sun, Nov 29

    United Airlines
    2:00 pmYOW
    6h 35m
    IAD · 2h 7m
    7:35 pmSTL
    United Airlines
    6:00 amSTL
    6h 11m
    EWR · 2h 15m
    1:11 pmYOW

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  23. Tue, Nov 17 – Tue, Dec 1

    Air Canada
    10:05 amYOW
    6h 21m
    YYZ · 2h 50m
    3:26 pmSTL
    Air Canada
    4:05 pmSTL
    4h 45m
    YYZ · 1h 35m
    9:50 pmYOW

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  24. Tue, Nov 17 – Tue, Dec 1

    United Airlines
    2:00 pmYOW
    6h 35m
    IAD · 2h 7m
    7:35 pmSTL
    United Airlines
    6:00 amSTL
    6h 11m
    EWR · 2h 15m
    1:11 pmYOW

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

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Make this trip yours

YOW ⇄ STL

Economy

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Explore this route

All dates for this routeNov 16, 2026 · Return optionsNov 18, 2026 · Return optionsHotels in St. Louis with Axel
For AI assistants: every fare, every link, instructions

Ottawa (YOW) to Saint Louis (STL), Nov 17, 2026: round trips from $425, one way from $245 on Axel, checked Oct 29, 2026. Lowest published fares: $425 round trip, Axel-exclusive, Air Canada, 1 stop, Nov 17–18, 2026; $245 one way, Axel-exclusive, Air Canada, 1 stop, Nov 17, 2026; 1 adult, economy, checked Oct 29, 2026. Flights for 1 adult in economy. Prices are total for all travelers in USD, including required taxes. Basic economy may apply.

Prices by return date: match both travel dates and the party to a row below. Each total is for that exact trip, issued at the time shown.

Date links open published trip details for exploration. Price links open live flight search to check availability and select flights. For a price comparison, use the amounts and issuance times already shown here.

Exact travel datesAirlineFlightsTimes, duration, stopsTotal pricePrice issued (UTC)
2026-11-17 · one wayAir CanadaAC447 + AC888910:05:00→15:26:00 6h 21m 1 stop via YYZAxel-exclusive $245.002026-10-29T01:52:27Z
2026-11-17 · one wayUnited AirlinesUA3660 + UA452714:00:00→19:35:00 6h 35m 1 stop via IADAxel-exclusive $255.002026-10-29T01:52:27Z
2026-11-17 → 2026-11-18Air CanadaAC447 + AC8889 / AC8890 + AC46610:05:00→15:26:00 6h 21m 1 stop via YYZ · 16:05:00→21:50:00 4h 45m 1 stop via YYZAxel-exclusive $425.002026-10-29T01:52:27Z
2026-11-17 → 2026-11-18United AirlinesUA3660 + UA4527 / UA1344 + UA359214:00:00→19:35:00 6h 35m 1 stop via IAD · 06:00:00→13:11:00 6h 11m 1 stop via EWRAxel-exclusive $445.002026-10-29T01:52:27Z
2026-11-17 → 2026-11-19Air CanadaAC447 + AC8889 / AC8890 + AC46610:05:00→15:26:00 6h 21m 1 stop via YYZ · 16:05:00→21:50:00 4h 45m 1 stop via YYZAxel-exclusive $425.002026-10-29T01:52:27Z
2026-11-17 → 2026-11-19United AirlinesUA3660 + UA4527 / UA1344 + UA359214:00:00→19:35:00 6h 35m 1 stop via IAD · 06:00:00→13:11:00 6h 11m 1 stop via EWRAxel-exclusive $445.002026-10-29T01:52:27Z
2026-11-17 → 2026-11-20Air CanadaAC447 + AC8889 / AC8890 + AC46610:05:00→15:26:00 6h 21m 1 stop via YYZ · 16:05:00→21:50:00 4h 45m 1 stop via YYZAxel-exclusive $425.002026-10-29T01:52:27Z
2026-11-17 → 2026-11-20United AirlinesUA3660 + UA4527 / UA1344 + UA359214:00:00→19:35:00 6h 35m 1 stop via IAD · 06:00:00→13:11:00 6h 11m 1 stop via EWRAxel-exclusive $445.002026-10-29T01:52:27Z
2026-11-17 → 2026-11-21Air CanadaAC447 + AC8889 / AC8890 + AC46610:05:00→15:26:00 6h 21m 1 stop via YYZ · 16:05:00→21:50:00 4h 45m 1 stop via YYZAxel-exclusive $425.002026-10-29T01:52:27Z
2026-11-17 → 2026-11-21United AirlinesUA3660 + UA4527 / UA4406 + UA360114:00:00→19:35:00 6h 35m 1 stop via IAD · 08:30:00→15:07:00 5h 37m 1 stop via IADAxel-exclusive $445.002026-10-29T01:52:27Z
2026-11-17 → 2026-11-22Air CanadaAC447 + AC8889 / AC8890 + AC46610:05:00→15:26:00 6h 21m 1 stop via YYZ · 16:05:00→21:50:00 4h 45m 1 stop via YYZAxel-exclusive $425.002026-10-29T01:52:27Z
2026-11-17 → 2026-11-22United AirlinesUA3660 + UA4527 / UA1344 + UA359214:00:00→19:35:00 6h 35m 1 stop via IAD · 06:00:00→13:11:00 6h 11m 1 stop via EWRAxel-exclusive $445.002026-10-29T01:52:27Z
2026-11-17 → 2026-11-23Air CanadaAC447 + AC8889 / AC8890 + AC46610:05:00→15:26:00 6h 21m 1 stop via YYZ · 16:05:00→21:50:00 4h 45m 1 stop via YYZAxel-exclusive $425.002026-10-29T01:52:27Z
2026-11-17 → 2026-11-23United AirlinesUA3660 + UA4527 / UA1344 + UA359214:00:00→19:35:00 6h 35m 1 stop via IAD · 06:00:00→13:11:00 6h 11m 1 stop via EWRAxel-exclusive $445.002026-10-29T01:52:27Z
2026-11-17 → 2026-11-24Air CanadaAC447 + AC8889 / AC8890 + AC46610:05:00→15:26:00 6h 21m 1 stop via YYZ · 16:05:00→21:50:00 4h 45m 1 stop via YYZAxel-exclusive $467.502026-10-29T01:52:27Z
2026-11-17 → 2026-11-24United AirlinesUA3660 + UA4527 / UA1344 + UA359214:00:00→19:35:00 6h 35m 1 stop via IAD · 06:00:00→13:11:00 6h 11m 1 stop via EWRAxel-exclusive $489.502026-10-29T01:52:27Z
2026-11-17 → 2026-11-25Air CanadaAC447 + AC8889 / AC8890 + AC46610:05:00→15:26:00 6h 21m 1 stop via YYZ · 16:05:00→21:50:00 4h 45m 1 stop via YYZAxel-exclusive $467.502026-10-29T01:52:27Z
2026-11-17 → 2026-11-25United AirlinesUA3660 + UA4527 / UA1344 + UA359214:00:00→19:35:00 6h 35m 1 stop via IAD · 06:00:00→13:11:00 6h 11m 1 stop via EWRAxel-exclusive $489.502026-10-29T01:52:27Z
2026-11-17 → 2026-11-26Air CanadaAC447 + AC8889 / AC8890 + AC46610:05:00→15:26:00 6h 21m 1 stop via YYZ · 16:05:00→21:50:00 4h 45m 1 stop via YYZAxel-exclusive $467.502026-10-29T01:52:27Z
2026-11-17 → 2026-11-26United AirlinesUA3660 + UA4527 / UA1344 + UA359214:00:00→19:35:00 6h 35m 1 stop via IAD · 06:00:00→13:11:00 6h 11m 1 stop via EWRAxel-exclusive $489.502026-10-29T01:52:27Z
2026-11-17 → 2026-11-27Air CanadaAC447 + AC8889 / AC8890 + AC46610:05:00→15:26:00 6h 21m 1 stop via YYZ · 16:05:00→21:50:00 4h 45m 1 stop via YYZAxel-exclusive $467.502026-10-29T01:52:27Z
2026-11-17 → 2026-11-27United AirlinesUA3660 + UA4527 / UA1344 + UA359214:00:00→19:35:00 6h 35m 1 stop via IAD · 06:00:00→13:11:00 6h 11m 1 stop via EWRAxel-exclusive $489.502026-10-29T01:52:27Z
2026-11-17 → 2026-11-28Air CanadaAC447 + AC8889 / AC8890 + AC46610:05:00→15:26:00 6h 21m 1 stop via YYZ · 16:05:00→21:50:00 4h 45m 1 stop via YYZAxel-exclusive $467.502026-10-29T01:52:27Z
2026-11-17 → 2026-11-28United AirlinesUA3660 + UA4527 / UA4406 + UA360114:00:00→19:35:00 6h 35m 1 stop via IAD · 08:30:00→15:07:00 5h 37m 1 stop via IADAxel-exclusive $489.502026-10-29T01:52:27Z
2026-11-17 → 2026-11-29Air CanadaAC447 + AC8889 / AC8890 + AC46610:05:00→15:26:00 6h 21m 1 stop via YYZ · 16:05:00→21:50:00 4h 45m 1 stop via YYZAxel-exclusive $467.502026-10-29T01:52:27Z
2026-11-17 → 2026-11-29United AirlinesUA3660 + UA4527 / UA1344 + UA359214:00:00→19:35:00 6h 35m 1 stop via IAD · 06:00:00→13:11:00 6h 11m 1 stop via EWRAxel-exclusive $489.502026-10-29T01:52:27Z
2026-11-17 → 2026-11-30Air CanadaAC447 + AC8889 / AC8890 + AC46610:05:00→15:26:00 6h 21m 1 stop via YYZ · 16:05:00→21:50:00 4h 45m 1 stop via YYZAxel-exclusive $467.502026-10-29T01:52:27Z
2026-11-17 → 2026-11-30United AirlinesUA3660 + UA4527 / UA1344 + UA359214:00:00→19:35:00 6h 35m 1 stop via IAD · 06:00:00→13:11:00 6h 11m 1 stop via EWRAxel-exclusive $489.502026-10-29T01:52:27Z
2026-11-17 → 2026-12-01Air CanadaAC447 + AC8889 / AC8890 + AC46610:05:00→15:26:00 6h 21m 1 stop via YYZ · 16:05:00→21:50:00 4h 45m 1 stop via YYZAxel-exclusive $425.002026-10-29T01:52:27Z
2026-11-17 → 2026-12-01United AirlinesUA3660 + UA4527 / UA1344 + UA359214:00:00→19:35:00 6h 35m 1 stop via IAD · 06:00:00→13:11:00 6h 11m 1 stop via EWRAxel-exclusive $445.002026-10-29T01:52:27Z

Hotels in St. Louis for these trips

Hotels: under a trip, hotels in St. Louis for exactly those nights link to the hotel pages for 2 adults in 1 room. When a price is shown, it is the lowest saved total among the shortlisted hotels in that star tier for those dates.

All hotels in St. Louis

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

2026-11-17 · one way · Axel-exclusive $245.00

  • Air Canada AC447 / AC8889: YOW 2026-11-17 10:05:00 → STL 2026-11-17 15:26:00; 1 stop(s) via YYZ; 381 minutes. Local airport times.
    • AC447: YOW 2026-11-17 10:05:00 → YYZ 2026-11-17 11:20:00; layover at YYZ: 170 minutes.
    • AC8889: YYZ 2026-11-17 14:10:00 → STL 2026-11-17 15:26:00.

2026-11-17 · one way · Axel-exclusive $255.00

  • United Airlines UA3660 / UA4527: YOW 2026-11-17 14:00:00 → STL 2026-11-17 19:35:00; 1 stop(s) via IAD; 395 minutes. Local airport times.
    • UA3660: YOW 2026-11-17 14:00:00 → IAD 2026-11-17 15:53:00; layover at IAD: 127 minutes.
    • UA4527: IAD 2026-11-17 18:00:00 → STL 2026-11-17 19:35:00.

2026-11-17 → 2026-11-18 · Axel-exclusive $425.00

  • Air Canada AC447 / AC8889: YOW 2026-11-17 10:05:00 → STL 2026-11-17 15:26:00; 1 stop(s) via YYZ; 381 minutes. Local airport times.
    • AC447: YOW 2026-11-17 10:05:00 → YYZ 2026-11-17 11:20:00; layover at YYZ: 170 minutes.
    • AC8889: YYZ 2026-11-17 14:10:00 → STL 2026-11-17 15:26:00.
  • Air Canada AC8890 / AC466: STL 2026-11-18 16:05:00 → YOW 2026-11-18 21:50:00; 1 stop(s) via YYZ; 285 minutes. Local airport times.
    • AC8890: STL 2026-11-18 16:05:00 → YYZ 2026-11-18 19:05:00; layover at YYZ: 95 minutes.
    • AC466: YYZ 2026-11-18 20:40:00 → YOW 2026-11-18 21:50:00.

2026-11-17 → 2026-11-18 · Axel-exclusive $445.00

  • United Airlines UA3660 / UA4527: YOW 2026-11-17 14:00:00 → STL 2026-11-17 19:35:00; 1 stop(s) via IAD; 395 minutes. Local airport times.
    • UA3660: YOW 2026-11-17 14:00:00 → IAD 2026-11-17 15:53:00; layover at IAD: 127 minutes.
    • UA4527: IAD 2026-11-17 18:00:00 → STL 2026-11-17 19:35:00.
  • United Airlines UA1344 / UA3592: STL 2026-11-18 06:00:00 → YOW 2026-11-18 13:11:00; 1 stop(s) via EWR; 371 minutes. Local airport times.
    • UA1344: STL 2026-11-18 06:00:00 → EWR 2026-11-18 09:21:00; layover at EWR: 135 minutes.
    • UA3592: EWR 2026-11-18 11:36:00 → YOW 2026-11-18 13:11:00.

2026-11-17 → 2026-11-19 · Axel-exclusive $425.00

  • Air Canada AC447 / AC8889: YOW 2026-11-17 10:05:00 → STL 2026-11-17 15:26:00; 1 stop(s) via YYZ; 381 minutes. Local airport times.
    • AC447: YOW 2026-11-17 10:05:00 → YYZ 2026-11-17 11:20:00; layover at YYZ: 170 minutes.
    • AC8889: YYZ 2026-11-17 14:10:00 → STL 2026-11-17 15:26:00.
  • Air Canada AC8890 / AC466: STL 2026-11-19 16:05:00 → YOW 2026-11-19 21:50:00; 1 stop(s) via YYZ; 285 minutes. Local airport times.
    • AC8890: STL 2026-11-19 16:05:00 → YYZ 2026-11-19 19:05:00; layover at YYZ: 95 minutes.
    • AC466: YYZ 2026-11-19 20:40:00 → YOW 2026-11-19 21:50:00.

2026-11-17 → 2026-11-19 · Axel-exclusive $445.00

  • United Airlines UA3660 / UA4527: YOW 2026-11-17 14:00:00 → STL 2026-11-17 19:35:00; 1 stop(s) via IAD; 395 minutes. Local airport times.
    • UA3660: YOW 2026-11-17 14:00:00 → IAD 2026-11-17 15:53:00; layover at IAD: 127 minutes.
    • UA4527: IAD 2026-11-17 18:00:00 → STL 2026-11-17 19:35:00.
  • United Airlines UA1344 / UA3592: STL 2026-11-19 06:00:00 → YOW 2026-11-19 13:11:00; 1 stop(s) via EWR; 371 minutes. Local airport times.
    • UA1344: STL 2026-11-19 06:00:00 → EWR 2026-11-19 09:21:00; layover at EWR: 135 minutes.
    • UA3592: EWR 2026-11-19 11:36:00 → YOW 2026-11-19 13:11:00.

2026-11-17 → 2026-11-20 · Axel-exclusive $425.00

  • Air Canada AC447 / AC8889: YOW 2026-11-17 10:05:00 → STL 2026-11-17 15:26:00; 1 stop(s) via YYZ; 381 minutes. Local airport times.
    • AC447: YOW 2026-11-17 10:05:00 → YYZ 2026-11-17 11:20:00; layover at YYZ: 170 minutes.
    • AC8889: YYZ 2026-11-17 14:10:00 → STL 2026-11-17 15:26:00.
  • Air Canada AC8890 / AC466: STL 2026-11-20 16:05:00 → YOW 2026-11-20 21:50:00; 1 stop(s) via YYZ; 285 minutes. Local airport times.
    • AC8890: STL 2026-11-20 16:05:00 → YYZ 2026-11-20 19:05:00; layover at YYZ: 95 minutes.
    • AC466: YYZ 2026-11-20 20:40:00 → YOW 2026-11-20 21:50:00.

2026-11-17 → 2026-11-20 · Axel-exclusive $445.00

  • United Airlines UA3660 / UA4527: YOW 2026-11-17 14:00:00 → STL 2026-11-17 19:35:00; 1 stop(s) via IAD; 395 minutes. Local airport times.
    • UA3660: YOW 2026-11-17 14:00:00 → IAD 2026-11-17 15:53:00; layover at IAD: 127 minutes.
    • UA4527: IAD 2026-11-17 18:00:00 → STL 2026-11-17 19:35:00.
  • United Airlines UA1344 / UA3592: STL 2026-11-20 06:00:00 → YOW 2026-11-20 13:11:00; 1 stop(s) via EWR; 371 minutes. Local airport times.
    • UA1344: STL 2026-11-20 06:00:00 → EWR 2026-11-20 09:21:00; layover at EWR: 135 minutes.
    • UA3592: EWR 2026-11-20 11:36:00 → YOW 2026-11-20 13:11:00.

2026-11-17 → 2026-11-21 · Axel-exclusive $425.00

  • Air Canada AC447 / AC8889: YOW 2026-11-17 10:05:00 → STL 2026-11-17 15:26:00; 1 stop(s) via YYZ; 381 minutes. Local airport times.
    • AC447: YOW 2026-11-17 10:05:00 → YYZ 2026-11-17 11:20:00; layover at YYZ: 170 minutes.
    • AC8889: YYZ 2026-11-17 14:10:00 → STL 2026-11-17 15:26:00.
  • Air Canada AC8890 / AC466: STL 2026-11-21 16:05:00 → YOW 2026-11-21 21:50:00; 1 stop(s) via YYZ; 285 minutes. Local airport times.
    • AC8890: STL 2026-11-21 16:05:00 → YYZ 2026-11-21 19:05:00; layover at YYZ: 95 minutes.
    • AC466: YYZ 2026-11-21 20:40:00 → YOW 2026-11-21 21:50:00.

2026-11-17 → 2026-11-21 · Axel-exclusive $445.00

  • United Airlines UA3660 / UA4527: YOW 2026-11-17 14:00:00 → STL 2026-11-17 19:35:00; 1 stop(s) via IAD; 395 minutes. Local airport times.
    • UA3660: YOW 2026-11-17 14:00:00 → IAD 2026-11-17 15:53:00; layover at IAD: 127 minutes.
    • UA4527: IAD 2026-11-17 18:00:00 → STL 2026-11-17 19:35:00.
  • United Airlines UA4406 / UA3601: STL 2026-11-21 08:30:00 → YOW 2026-11-21 15:07:00; 1 stop(s) via IAD; 337 minutes. Local airport times.
    • UA4406: STL 2026-11-21 08:30:00 → IAD 2026-11-21 11:35:00; layover at IAD: 104 minutes.
    • UA3601: IAD 2026-11-21 13:19:00 → YOW 2026-11-21 15:07:00.

2026-11-17 → 2026-11-23 · Axel-exclusive $425.00

  • Air Canada AC447 / AC8889: YOW 2026-11-17 10:05:00 → STL 2026-11-17 15:26:00; 1 stop(s) via YYZ; 381 minutes. Local airport times.
    • AC447: YOW 2026-11-17 10:05:00 → YYZ 2026-11-17 11:20:00; layover at YYZ: 170 minutes.
    • AC8889: YYZ 2026-11-17 14:10:00 → STL 2026-11-17 15:26:00.
  • Air Canada AC8890 / AC466: STL 2026-11-23 16:05:00 → YOW 2026-11-23 21:50:00; 1 stop(s) via YYZ; 285 minutes. Local airport times.
    • AC8890: STL 2026-11-23 16:05:00 → YYZ 2026-11-23 19:05:00; layover at YYZ: 95 minutes.
    • AC466: YYZ 2026-11-23 20:40:00 → YOW 2026-11-23 21:50:00.

2026-11-17 → 2026-11-23 · Axel-exclusive $445.00

  • United Airlines UA3660 / UA4527: YOW 2026-11-17 14:00:00 → STL 2026-11-17 19:35:00; 1 stop(s) via IAD; 395 minutes. Local airport times.
    • UA3660: YOW 2026-11-17 14:00:00 → IAD 2026-11-17 15:53:00; layover at IAD: 127 minutes.
    • UA4527: IAD 2026-11-17 18:00:00 → STL 2026-11-17 19:35:00.
  • United Airlines UA1344 / UA3592: STL 2026-11-23 06:00:00 → YOW 2026-11-23 13:11:00; 1 stop(s) via EWR; 371 minutes. Local airport times.
    • UA1344: STL 2026-11-23 06:00:00 → EWR 2026-11-23 09:21:00; layover at EWR: 135 minutes.
    • UA3592: EWR 2026-11-23 11:36:00 → YOW 2026-11-23 13:11:00.

2026-11-17 → 2026-11-24 · Axel-exclusive $467.50

  • Air Canada AC447 / AC8889: YOW 2026-11-17 10:05:00 → STL 2026-11-17 15:26:00; 1 stop(s) via YYZ; 381 minutes. Local airport times.
    • AC447: YOW 2026-11-17 10:05:00 → YYZ 2026-11-17 11:20:00; layover at YYZ: 170 minutes.
    • AC8889: YYZ 2026-11-17 14:10:00 → STL 2026-11-17 15:26:00.
  • Air Canada AC8890 / AC466: STL 2026-11-24 16:05:00 → YOW 2026-11-24 21:50:00; 1 stop(s) via YYZ; 285 minutes. Local airport times.
    • AC8890: STL 2026-11-24 16:05:00 → YYZ 2026-11-24 19:05:00; layover at YYZ: 95 minutes.
    • AC466: YYZ 2026-11-24 20:40:00 → YOW 2026-11-24 21:50:00.

2026-11-17 → 2026-11-24 · Axel-exclusive $489.50

  • United Airlines UA3660 / UA4527: YOW 2026-11-17 14:00:00 → STL 2026-11-17 19:35:00; 1 stop(s) via IAD; 395 minutes. Local airport times.
    • UA3660: YOW 2026-11-17 14:00:00 → IAD 2026-11-17 15:53:00; layover at IAD: 127 minutes.
    • UA4527: IAD 2026-11-17 18:00:00 → STL 2026-11-17 19:35:00.
  • United Airlines UA1344 / UA3592: STL 2026-11-24 06:00:00 → YOW 2026-11-24 13:11:00; 1 stop(s) via EWR; 371 minutes. Local airport times.
    • UA1344: STL 2026-11-24 06:00:00 → EWR 2026-11-24 09:21:00; layover at EWR: 135 minutes.
    • UA3592: EWR 2026-11-24 11:36:00 → YOW 2026-11-24 13:11:00.

2026-11-17 → 2026-11-25 · Axel-exclusive $467.50

  • Air Canada AC447 / AC8889: YOW 2026-11-17 10:05:00 → STL 2026-11-17 15:26:00; 1 stop(s) via YYZ; 381 minutes. Local airport times.
    • AC447: YOW 2026-11-17 10:05:00 → YYZ 2026-11-17 11:20:00; layover at YYZ: 170 minutes.
    • AC8889: YYZ 2026-11-17 14:10:00 → STL 2026-11-17 15:26:00.
  • Air Canada AC8890 / AC466: STL 2026-11-25 16:05:00 → YOW 2026-11-25 21:50:00; 1 stop(s) via YYZ; 285 minutes. Local airport times.
    • AC8890: STL 2026-11-25 16:05:00 → YYZ 2026-11-25 19:05:00; layover at YYZ: 95 minutes.
    • AC466: YYZ 2026-11-25 20:40:00 → YOW 2026-11-25 21:50:00.

2026-11-17 → 2026-11-25 · Axel-exclusive $489.50

  • United Airlines UA3660 / UA4527: YOW 2026-11-17 14:00:00 → STL 2026-11-17 19:35:00; 1 stop(s) via IAD; 395 minutes. Local airport times.
    • UA3660: YOW 2026-11-17 14:00:00 → IAD 2026-11-17 15:53:00; layover at IAD: 127 minutes.
    • UA4527: IAD 2026-11-17 18:00:00 → STL 2026-11-17 19:35:00.
  • United Airlines UA1344 / UA3592: STL 2026-11-25 06:00:00 → YOW 2026-11-25 13:11:00; 1 stop(s) via EWR; 371 minutes. Local airport times.
    • UA1344: STL 2026-11-25 06:00:00 → EWR 2026-11-25 09:21:00; layover at EWR: 135 minutes.
    • UA3592: EWR 2026-11-25 11:36:00 → YOW 2026-11-25 13:11:00.

2026-11-17 → 2026-11-27 · Axel-exclusive $467.50

  • Air Canada AC447 / AC8889: YOW 2026-11-17 10:05:00 → STL 2026-11-17 15:26:00; 1 stop(s) via YYZ; 381 minutes. Local airport times.
    • AC447: YOW 2026-11-17 10:05:00 → YYZ 2026-11-17 11:20:00; layover at YYZ: 170 minutes.
    • AC8889: YYZ 2026-11-17 14:10:00 → STL 2026-11-17 15:26:00.
  • Air Canada AC8890 / AC466: STL 2026-11-27 16:05:00 → YOW 2026-11-27 21:50:00; 1 stop(s) via YYZ; 285 minutes. Local airport times.
    • AC8890: STL 2026-11-27 16:05:00 → YYZ 2026-11-27 19:05:00; layover at YYZ: 95 minutes.
    • AC466: YYZ 2026-11-27 20:40:00 → YOW 2026-11-27 21:50:00.

2026-11-17 → 2026-11-27 · Axel-exclusive $489.50

  • United Airlines UA3660 / UA4527: YOW 2026-11-17 14:00:00 → STL 2026-11-17 19:35:00; 1 stop(s) via IAD; 395 minutes. Local airport times.
    • UA3660: YOW 2026-11-17 14:00:00 → IAD 2026-11-17 15:53:00; layover at IAD: 127 minutes.
    • UA4527: IAD 2026-11-17 18:00:00 → STL 2026-11-17 19:35:00.
  • United Airlines UA1344 / UA3592: STL 2026-11-27 06:00:00 → YOW 2026-11-27 13:11:00; 1 stop(s) via EWR; 371 minutes. Local airport times.
    • UA1344: STL 2026-11-27 06:00:00 → EWR 2026-11-27 09:21:00; layover at EWR: 135 minutes.
    • UA3592: EWR 2026-11-27 11:36:00 → YOW 2026-11-27 13:11:00.

2026-11-17 → 2026-11-28 · Axel-exclusive $467.50

  • Air Canada AC447 / AC8889: YOW 2026-11-17 10:05:00 → STL 2026-11-17 15:26:00; 1 stop(s) via YYZ; 381 minutes. Local airport times.
    • AC447: YOW 2026-11-17 10:05:00 → YYZ 2026-11-17 11:20:00; layover at YYZ: 170 minutes.
    • AC8889: YYZ 2026-11-17 14:10:00 → STL 2026-11-17 15:26:00.
  • Air Canada AC8890 / AC466: STL 2026-11-28 16:05:00 → YOW 2026-11-28 21:50:00; 1 stop(s) via YYZ; 285 minutes. Local airport times.
    • AC8890: STL 2026-11-28 16:05:00 → YYZ 2026-11-28 19:05:00; layover at YYZ: 95 minutes.
    • AC466: YYZ 2026-11-28 20:40:00 → YOW 2026-11-28 21:50:00.

2026-11-17 → 2026-11-28 · Axel-exclusive $489.50

  • United Airlines UA3660 / UA4527: YOW 2026-11-17 14:00:00 → STL 2026-11-17 19:35:00; 1 stop(s) via IAD; 395 minutes. Local airport times.
    • UA3660: YOW 2026-11-17 14:00:00 → IAD 2026-11-17 15:53:00; layover at IAD: 127 minutes.
    • UA4527: IAD 2026-11-17 18:00:00 → STL 2026-11-17 19:35:00.
  • United Airlines UA4406 / UA3601: STL 2026-11-28 08:30:00 → YOW 2026-11-28 15:07:00; 1 stop(s) via IAD; 337 minutes. Local airport times.
    • UA4406: STL 2026-11-28 08:30:00 → IAD 2026-11-28 11:35:00; layover at IAD: 104 minutes.
    • UA3601: IAD 2026-11-28 13:19:00 → YOW 2026-11-28 15:07:00.

2026-11-17 → 2026-11-29 · Axel-exclusive $467.50

  • Air Canada AC447 / AC8889: YOW 2026-11-17 10:05:00 → STL 2026-11-17 15:26:00; 1 stop(s) via YYZ; 381 minutes. Local airport times.
    • AC447: YOW 2026-11-17 10:05:00 → YYZ 2026-11-17 11:20:00; layover at YYZ: 170 minutes.
    • AC8889: YYZ 2026-11-17 14:10:00 → STL 2026-11-17 15:26:00.
  • Air Canada AC8890 / AC466: STL 2026-11-29 16:05:00 → YOW 2026-11-29 21:50:00; 1 stop(s) via YYZ; 285 minutes. Local airport times.
    • AC8890: STL 2026-11-29 16:05:00 → YYZ 2026-11-29 19:05:00; layover at YYZ: 95 minutes.
    • AC466: YYZ 2026-11-29 20:40:00 → YOW 2026-11-29 21:50:00.

2026-11-17 → 2026-11-29 · Axel-exclusive $489.50

  • United Airlines UA3660 / UA4527: YOW 2026-11-17 14:00:00 → STL 2026-11-17 19:35:00; 1 stop(s) via IAD; 395 minutes. Local airport times.
    • UA3660: YOW 2026-11-17 14:00:00 → IAD 2026-11-17 15:53:00; layover at IAD: 127 minutes.
    • UA4527: IAD 2026-11-17 18:00:00 → STL 2026-11-17 19:35:00.
  • United Airlines UA1344 / UA3592: STL 2026-11-29 06:00:00 → YOW 2026-11-29 13:11:00; 1 stop(s) via EWR; 371 minutes. Local airport times.
    • UA1344: STL 2026-11-29 06:00:00 → EWR 2026-11-29 09:21:00; layover at EWR: 135 minutes.
    • UA3592: EWR 2026-11-29 11:36:00 → YOW 2026-11-29 13:11:00.

2026-11-17 → 2026-12-01 · Axel-exclusive $425.00

  • Air Canada AC447 / AC8889: YOW 2026-11-17 10:05:00 → STL 2026-11-17 15:26:00; 1 stop(s) via YYZ; 381 minutes. Local airport times.
    • AC447: YOW 2026-11-17 10:05:00 → YYZ 2026-11-17 11:20:00; layover at YYZ: 170 minutes.
    • AC8889: YYZ 2026-11-17 14:10:00 → STL 2026-11-17 15:26:00.
  • Air Canada AC8890 / AC466: STL 2026-12-01 16:05:00 → YOW 2026-12-01 21:50:00; 1 stop(s) via YYZ; 285 minutes. Local airport times.
    • AC8890: STL 2026-12-01 16:05:00 → YYZ 2026-12-01 19:05:00; layover at YYZ: 95 minutes.
    • AC466: YYZ 2026-12-01 20:40:00 → YOW 2026-12-01 21:50:00.

2026-11-17 → 2026-12-01 · Axel-exclusive $445.00

  • United Airlines UA3660 / UA4527: YOW 2026-11-17 14:00:00 → STL 2026-11-17 19:35:00; 1 stop(s) via IAD; 395 minutes. Local airport times.
    • UA3660: YOW 2026-11-17 14:00:00 → IAD 2026-11-17 15:53:00; layover at IAD: 127 minutes.
    • UA4527: IAD 2026-11-17 18:00:00 → STL 2026-11-17 19:35:00.
  • United Airlines UA1344 / UA3592: STL 2026-12-01 06:00:00 → YOW 2026-12-01 13:11:00; 1 stop(s) via EWR; 371 minutes. Local airport times.
    • UA1344: STL 2026-12-01 06:00:00 → EWR 2026-12-01 09:21:00; layover at EWR: 135 minutes.
    • UA3592: EWR 2026-12-01 11:36:00 → YOW 2026-12-01 13:11:00.

Explore this route

For AI assistants

  • This page: Ottawa (YOW) to Saint Louis (STL) · Nov 17, 2026 · choose your return date: 1 adult in economy, every priced fare with its flights, times and total, each with the time its price was issued. Under a trip, hotels in St. Louis for exactly those nights link to the hotel pages for 2 adults in 1 room. Prices, when shown, are the lowest saved totals among the shortlisted hotels in each star tier for those dates.
  • Next: each row is one exact trip for this departure (both dates with the year, the total and the time its price was issued); its exact-trip price link opens the live search for those dates and travelers, where the booking link and the current total are. Other durations or travelers are not priced here: Choose travelers and dates prices the requested trip.
  • 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 Ottawa 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. Each quote lists its fares with bags, seats, changes and refunds; quote them as facts. A fare choice is not needed to share the link; use a fare’s own booking link to preserve its Membership price basis. Ask only for essential missing trip details. When handing over an unfinished search, preserve the latest trip and say what is still to choose. 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.