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Route overview: Montreal to Billings (BIL) flight deals

Montreal → Billings

Nov 2, 2026 · choose your return date

YUL → BIL1 adulteconomyOne way and round trips

14 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

Nov 2, 2026 · One wayAir CanadaUp to 1 stop each way$350.00 Nov 2, 2026 – Nov 4, 2026 · 2 nightsAir Canada / United AirlinesUp to 1 stop each way$600.00 Nov 2, 2026 – Nov 5, 2026 · 3 nightsAir Canada / United AirlinesUp to 1 stop each way$600.00 Nov 2, 2026 – Nov 6, 2026 · 4 nightsAir Canada / United AirlinesUp to 1 stop each way$600.00 Nov 2, 2026 – Nov 7, 2026 · 5 nightsAir Canada / United AirlinesUp to 1 stop each way$600.00 Nov 2, 2026 – Nov 8, 2026 · 6 nightsAir Canada / United AirlinesUp to 1 stop each way$600.00 Nov 2, 2026 – Nov 9, 2026 · 7 nightsAir Canada / United AirlinesUp to 1 stop each way$600.00 Nov 2, 2026 – Nov 10, 2026 · 8 nightsAir Canada / United AirlinesUp to 1 stop each way$600.00 Nov 2, 2026 – Nov 11, 2026 · 9 nightsAir Canada / United AirlinesUp to 1 stop each way$600.00 Nov 2, 2026 – Nov 12, 2026 · 10 nightsAir Canada / United AirlinesUp to 1 stop each way$600.00 Nov 2, 2026 – Nov 13, 2026 · 11 nightsAir Canada / United AirlinesUp to 1 stop each way$600.00 Nov 2, 2026 – Nov 14, 2026 · 12 nightsAir Canada / United AirlinesUp to 1 stop each way$600.00 Nov 2, 2026 – Nov 15, 2026 · 13 nightsAir Canada / United AirlinesUp to 1 stop each way$600.00 Nov 2, 2026 – Nov 16, 2026 · 14 nightsAir Canada / United AirlinesUp to 1 stop each way$600.00

Flights for your trip

  1. Mon, Nov 2 · One way

    Air Canada
    5:50 pmYUL
    9h 47m
    DEN · 3h 28m
    1:37 am+1BIL

    One-way total · 1 adult · Taxes included

  2. Mon, Nov 2 – Wed, Nov 4

    Air Canada
    5:50 pmYUL
    9h 47m
    DEN · 3h 28m
    1:37 am+1BIL
    United Airlines
    7:00 amBIL
    8h 10m
    DEN · 2h 47m
    5:10 pmYUL

    Round-trip total · 1 adult · Taxes included

  3. Mon, Nov 2 – Thu, Nov 5

    Air Canada
    5:50 pmYUL
    9h 47m
    DEN · 3h 28m
    1:37 am+1BIL
    United Airlines
    7:00 amBIL
    8h 10m
    DEN · 2h 47m
    5:10 pmYUL

    Round-trip total · 1 adult · Taxes included

  4. Mon, Nov 2 – Fri, Nov 6

    Air Canada
    5:50 pmYUL
    9h 47m
    DEN · 3h 28m
    1:37 am+1BIL
    United Airlines
    7:00 amBIL
    8h 10m
    DEN · 2h 47m
    5:10 pmYUL

    Round-trip total · 1 adult · Taxes included

  5. Mon, Nov 2 – Sat, Nov 7

    Air Canada
    5:50 pmYUL
    9h 47m
    DEN · 3h 28m
    1:37 am+1BIL
    United Airlines
    7:00 amBIL
    8h 10m
    DEN · 2h 47m
    5:10 pmYUL

    Round-trip total · 1 adult · Taxes included

  6. Mon, Nov 2 – Sun, Nov 8

    Air Canada
    5:50 pmYUL
    9h 47m
    DEN · 3h 28m
    1:37 am+1BIL
    United Airlines
    7:00 amBIL
    8h 10m
    DEN · 2h 47m
    5:10 pmYUL

    Round-trip total · 1 adult · Taxes included

  7. Mon, Nov 2 – Tue, Nov 10

    Air Canada
    5:50 pmYUL
    9h 47m
    DEN · 3h 28m
    1:37 am+1BIL
    United Airlines
    7:00 amBIL
    8h 10m
    DEN · 2h 47m
    5:10 pmYUL

    Round-trip total · 1 adult · Taxes included

  8. Mon, Nov 2 – Wed, Nov 11

    Air Canada
    5:50 pmYUL
    9h 47m
    DEN · 3h 28m
    1:37 am+1BIL
    United Airlines
    7:00 amBIL
    8h 10m
    DEN · 2h 47m
    5:10 pmYUL

    Round-trip total · 1 adult · Taxes included

  9. Mon, Nov 2 – Thu, Nov 12

    Air Canada
    5:50 pmYUL
    9h 47m
    DEN · 3h 28m
    1:37 am+1BIL
    United Airlines
    7:00 amBIL
    8h 10m
    DEN · 2h 47m
    5:10 pmYUL

    Round-trip total · 1 adult · Taxes included

  10. Mon, Nov 2 – Fri, Nov 13

    Air Canada
    5:50 pmYUL
    9h 47m
    DEN · 3h 28m
    1:37 am+1BIL
    United Airlines
    7:00 amBIL
    8h 10m
    DEN · 2h 47m
    5:10 pmYUL

    Round-trip total · 1 adult · Taxes included

  11. Mon, Nov 2 – Sat, Nov 14

    Air Canada
    5:50 pmYUL
    9h 47m
    DEN · 3h 28m
    1:37 am+1BIL
    United Airlines
    7:00 amBIL
    8h 10m
    DEN · 2h 47m
    5:10 pmYUL

    Round-trip total · 1 adult · Taxes included

  12. Mon, Nov 2 – Mon, Nov 16

    Air Canada
    5:50 pmYUL
    9h 47m
    DEN · 3h 28m
    1:37 am+1BIL
    United Airlines
    7:00 amBIL
    8h 10m
    DEN · 2h 47m
    5:10 pmYUL

    Round-trip total · 1 adult · Taxes included

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Make this trip yours

YUL ⇄ BIL

Economy

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

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  • A real airline bookingThe booking is in the airline’s own system under your name. After you book, Air Canada 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.
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  • 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
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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 routeNov 1, 2026 · Return optionsNov 3, 2026 · Return optionsHotels in Billings with Axel
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.

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. To book or select flights, follow that row's price link; it keeps the exact dates and travelers.

Exact travel datesAirlineFlightsTotal pricePrice issued (UTC)
2026-11-02 · one wayAir CanadaAC1075 + UA5880Axel-exclusive $350.002026-10-29T01:53:44Z
2026-11-02 → 2026-11-04Air Canada / United AirlinesAC1075 + UA5880 / UA372 + AC1074Axel-exclusive $600.002026-10-29T01:53:44Z
2026-11-02 → 2026-11-05Air Canada / United AirlinesAC1075 + UA5880 / UA372 + AC1074Axel-exclusive $600.002026-10-29T01:53:44Z
2026-11-02 → 2026-11-06Air Canada / United AirlinesAC1075 + UA5880 / UA372 + AC1074Axel-exclusive $600.002026-10-29T01:53:44Z
2026-11-02 → 2026-11-07Air Canada / United AirlinesAC1075 + UA5880 / UA372 + AC1074Axel-exclusive $600.002026-10-29T01:53:44Z
2026-11-02 → 2026-11-08Air Canada / United AirlinesAC1075 + UA5880 / UA372 + AC1074Axel-exclusive $600.002026-10-29T01:53:44Z
2026-11-02 → 2026-11-09Air Canada / United AirlinesAC1075 + UA5880 / UA372 + AC1074Axel-exclusive $600.002026-10-29T01:53:44Z
2026-11-02 → 2026-11-10Air Canada / United AirlinesAC1075 + UA5880 / UA372 + AC1074Axel-exclusive $600.002026-10-29T01:53:44Z
2026-11-02 → 2026-11-11Air Canada / United AirlinesAC1075 + UA5880 / UA372 + AC1074Axel-exclusive $600.002026-10-29T01:53:44Z
2026-11-02 → 2026-11-12Air Canada / United AirlinesAC1075 + UA5880 / UA372 + AC1074Axel-exclusive $600.002026-10-29T01:53:44Z
2026-11-02 → 2026-11-13Air Canada / United AirlinesAC1075 + UA5880 / UA372 + AC1074Axel-exclusive $600.002026-10-29T01:53:44Z
2026-11-02 → 2026-11-14Air Canada / United AirlinesAC1075 + UA5880 / UA372 + AC1074Axel-exclusive $600.002026-10-29T01:53:44Z
2026-11-02 → 2026-11-15Air Canada / United AirlinesAC1075 + UA5880 / UA372 + AC1074Axel-exclusive $600.002026-10-29T01:53:44Z
2026-11-02 → 2026-11-16Air Canada / United AirlinesAC1075 + UA5880 / UA372 + AC1074Axel-exclusive $600.002026-10-29T01:53:44Z

Route overview: Montreal to Billings (BIL) flight deals

2026-11-02 · one way · Axel-exclusive $350.00

  • Air Canada AC1075 / UA5880: YUL 2026-11-02 17:50:00 → BIL 2026-11-03 01:37:00; 1 stop(s) via DEN; 587 minutes. Local airport times.
    • AC1075: YUL 2026-11-02 17:50:00 → DEN 2026-11-02 20:27:00; layover at DEN: 208 minutes.
    • UA5880: DEN 2026-11-02 23:55:00 → BIL 2026-11-03 01:37:00.

2026-11-02 → 2026-11-04 · Axel-exclusive $600.00

  • Air Canada AC1075 / UA5880: YUL 2026-11-02 17:50:00 → BIL 2026-11-03 01:37:00; 1 stop(s) via DEN; 587 minutes. Local airport times.
    • AC1075: YUL 2026-11-02 17:50:00 → DEN 2026-11-02 20:27:00; layover at DEN: 208 minutes.
    • UA5880: DEN 2026-11-02 23:55:00 → BIL 2026-11-03 01:37:00.
  • United Airlines UA372 / AC1074: BIL 2026-11-04 07:00:00 → YUL 2026-11-04 17:10:00; 1 stop(s) via DEN; 490 minutes. Local airport times.
    • UA372: BIL 2026-11-04 07:00:00 → DEN 2026-11-04 08:38:00; layover at DEN: 167 minutes.
    • AC1074: DEN 2026-11-04 11:25:00 → YUL 2026-11-04 17:10:00.

2026-11-02 → 2026-11-05 · Axel-exclusive $600.00

  • Air Canada AC1075 / UA5880: YUL 2026-11-02 17:50:00 → BIL 2026-11-03 01:37:00; 1 stop(s) via DEN; 587 minutes. Local airport times.
    • AC1075: YUL 2026-11-02 17:50:00 → DEN 2026-11-02 20:27:00; layover at DEN: 208 minutes.
    • UA5880: DEN 2026-11-02 23:55:00 → BIL 2026-11-03 01:37:00.
  • United Airlines UA372 / AC1074: BIL 2026-11-05 07:00:00 → YUL 2026-11-05 17:10:00; 1 stop(s) via DEN; 490 minutes. Local airport times.
    • UA372: BIL 2026-11-05 07:00:00 → DEN 2026-11-05 08:38:00; layover at DEN: 167 minutes.
    • AC1074: DEN 2026-11-05 11:25:00 → YUL 2026-11-05 17:10:00.

2026-11-02 → 2026-11-06 · Axel-exclusive $600.00

  • Air Canada AC1075 / UA5880: YUL 2026-11-02 17:50:00 → BIL 2026-11-03 01:37:00; 1 stop(s) via DEN; 587 minutes. Local airport times.
    • AC1075: YUL 2026-11-02 17:50:00 → DEN 2026-11-02 20:27:00; layover at DEN: 208 minutes.
    • UA5880: DEN 2026-11-02 23:55:00 → BIL 2026-11-03 01:37:00.
  • United Airlines UA372 / AC1074: BIL 2026-11-06 07:00:00 → YUL 2026-11-06 17:10:00; 1 stop(s) via DEN; 490 minutes. Local airport times.
    • UA372: BIL 2026-11-06 07:00:00 → DEN 2026-11-06 08:38:00; layover at DEN: 167 minutes.
    • AC1074: DEN 2026-11-06 11:25:00 → YUL 2026-11-06 17:10:00.

2026-11-02 → 2026-11-07 · Axel-exclusive $600.00

  • Air Canada AC1075 / UA5880: YUL 2026-11-02 17:50:00 → BIL 2026-11-03 01:37:00; 1 stop(s) via DEN; 587 minutes. Local airport times.
    • AC1075: YUL 2026-11-02 17:50:00 → DEN 2026-11-02 20:27:00; layover at DEN: 208 minutes.
    • UA5880: DEN 2026-11-02 23:55:00 → BIL 2026-11-03 01:37:00.
  • United Airlines UA372 / AC1074: BIL 2026-11-07 07:00:00 → YUL 2026-11-07 17:10:00; 1 stop(s) via DEN; 490 minutes. Local airport times.
    • UA372: BIL 2026-11-07 07:00:00 → DEN 2026-11-07 08:38:00; layover at DEN: 167 minutes.
    • AC1074: DEN 2026-11-07 11:25:00 → YUL 2026-11-07 17:10:00.

2026-11-02 → 2026-11-08 · Axel-exclusive $600.00

  • Air Canada AC1075 / UA5880: YUL 2026-11-02 17:50:00 → BIL 2026-11-03 01:37:00; 1 stop(s) via DEN; 587 minutes. Local airport times.
    • AC1075: YUL 2026-11-02 17:50:00 → DEN 2026-11-02 20:27:00; layover at DEN: 208 minutes.
    • UA5880: DEN 2026-11-02 23:55:00 → BIL 2026-11-03 01:37:00.
  • United Airlines UA372 / AC1074: BIL 2026-11-08 07:00:00 → YUL 2026-11-08 17:10:00; 1 stop(s) via DEN; 490 minutes. Local airport times.
    • UA372: BIL 2026-11-08 07:00:00 → DEN 2026-11-08 08:38:00; layover at DEN: 167 minutes.
    • AC1074: DEN 2026-11-08 11:25:00 → YUL 2026-11-08 17:10:00.

2026-11-02 → 2026-11-10 · Axel-exclusive $600.00

  • Air Canada AC1075 / UA5880: YUL 2026-11-02 17:50:00 → BIL 2026-11-03 01:37:00; 1 stop(s) via DEN; 587 minutes. Local airport times.
    • AC1075: YUL 2026-11-02 17:50:00 → DEN 2026-11-02 20:27:00; layover at DEN: 208 minutes.
    • UA5880: DEN 2026-11-02 23:55:00 → BIL 2026-11-03 01:37:00.
  • United Airlines UA372 / AC1074: BIL 2026-11-10 07:00:00 → YUL 2026-11-10 17:10:00; 1 stop(s) via DEN; 490 minutes. Local airport times.
    • UA372: BIL 2026-11-10 07:00:00 → DEN 2026-11-10 08:38:00; layover at DEN: 167 minutes.
    • AC1074: DEN 2026-11-10 11:25:00 → YUL 2026-11-10 17:10:00.

2026-11-02 → 2026-11-11 · Axel-exclusive $600.00

  • Air Canada AC1075 / UA5880: YUL 2026-11-02 17:50:00 → BIL 2026-11-03 01:37:00; 1 stop(s) via DEN; 587 minutes. Local airport times.
    • AC1075: YUL 2026-11-02 17:50:00 → DEN 2026-11-02 20:27:00; layover at DEN: 208 minutes.
    • UA5880: DEN 2026-11-02 23:55:00 → BIL 2026-11-03 01:37:00.
  • United Airlines UA372 / AC1074: BIL 2026-11-11 07:00:00 → YUL 2026-11-11 17:10:00; 1 stop(s) via DEN; 490 minutes. Local airport times.
    • UA372: BIL 2026-11-11 07:00:00 → DEN 2026-11-11 08:38:00; layover at DEN: 167 minutes.
    • AC1074: DEN 2026-11-11 11:25:00 → YUL 2026-11-11 17:10:00.

2026-11-02 → 2026-11-12 · Axel-exclusive $600.00

  • Air Canada AC1075 / UA5880: YUL 2026-11-02 17:50:00 → BIL 2026-11-03 01:37:00; 1 stop(s) via DEN; 587 minutes. Local airport times.
    • AC1075: YUL 2026-11-02 17:50:00 → DEN 2026-11-02 20:27:00; layover at DEN: 208 minutes.
    • UA5880: DEN 2026-11-02 23:55:00 → BIL 2026-11-03 01:37:00.
  • United Airlines UA372 / AC1074: BIL 2026-11-12 07:00:00 → YUL 2026-11-12 17:10:00; 1 stop(s) via DEN; 490 minutes. Local airport times.
    • UA372: BIL 2026-11-12 07:00:00 → DEN 2026-11-12 08:38:00; layover at DEN: 167 minutes.
    • AC1074: DEN 2026-11-12 11:25:00 → YUL 2026-11-12 17:10:00.

2026-11-02 → 2026-11-13 · Axel-exclusive $600.00

  • Air Canada AC1075 / UA5880: YUL 2026-11-02 17:50:00 → BIL 2026-11-03 01:37:00; 1 stop(s) via DEN; 587 minutes. Local airport times.
    • AC1075: YUL 2026-11-02 17:50:00 → DEN 2026-11-02 20:27:00; layover at DEN: 208 minutes.
    • UA5880: DEN 2026-11-02 23:55:00 → BIL 2026-11-03 01:37:00.
  • United Airlines UA372 / AC1074: BIL 2026-11-13 07:00:00 → YUL 2026-11-13 17:10:00; 1 stop(s) via DEN; 490 minutes. Local airport times.
    • UA372: BIL 2026-11-13 07:00:00 → DEN 2026-11-13 08:38:00; layover at DEN: 167 minutes.
    • AC1074: DEN 2026-11-13 11:25:00 → YUL 2026-11-13 17:10:00.

2026-11-02 → 2026-11-14 · Axel-exclusive $600.00

  • Air Canada AC1075 / UA5880: YUL 2026-11-02 17:50:00 → BIL 2026-11-03 01:37:00; 1 stop(s) via DEN; 587 minutes. Local airport times.
    • AC1075: YUL 2026-11-02 17:50:00 → DEN 2026-11-02 20:27:00; layover at DEN: 208 minutes.
    • UA5880: DEN 2026-11-02 23:55:00 → BIL 2026-11-03 01:37:00.
  • United Airlines UA372 / AC1074: BIL 2026-11-14 07:00:00 → YUL 2026-11-14 17:10:00; 1 stop(s) via DEN; 490 minutes. Local airport times.
    • UA372: BIL 2026-11-14 07:00:00 → DEN 2026-11-14 08:38:00; layover at DEN: 167 minutes.
    • AC1074: DEN 2026-11-14 11:25:00 → YUL 2026-11-14 17:10:00.

2026-11-02 → 2026-11-16 · Axel-exclusive $600.00

  • Air Canada AC1075 / UA5880: YUL 2026-11-02 17:50:00 → BIL 2026-11-03 01:37:00; 1 stop(s) via DEN; 587 minutes. Local airport times.
    • AC1075: YUL 2026-11-02 17:50:00 → DEN 2026-11-02 20:27:00; layover at DEN: 208 minutes.
    • UA5880: DEN 2026-11-02 23:55:00 → BIL 2026-11-03 01:37:00.
  • United Airlines UA372 / AC1074: BIL 2026-11-16 07:00:00 → YUL 2026-11-16 17:10:00; 1 stop(s) via DEN; 490 minutes. Local airport times.
    • UA372: BIL 2026-11-16 07:00:00 → DEN 2026-11-16 08:38:00; layover at DEN: 167 minutes.
    • AC1074: DEN 2026-11-16 11:25:00 → YUL 2026-11-16 17:10:00.

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  • This page: Montreal (YUL) to Billings (BIL) · Nov 2, 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.
  • Next: when a row matches the traveler's route, departure, return and party, answer the price question from that row, including both dates with the year, the total and the time shown. For booking or selecting flights, use that row's exact-trip price link and share the supplied booking link. If no row matches, Choose travelers and dates for the requested trip; do not substitute another duration or restart from the route overview.
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  • 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.