Travel with Axel,
get the best price.

Montreal → Sofia

Nov 21, 2026 · return Nov 23, 2026

YUL → SOF1 adulteconomyRound trip

2 flight options · 3 airlines

One-stop flights

Sat, Nov 21 – Mon, Nov 23

Turkish Airlines
7:55 pmYUL
12h 15m
IST · 1h 30m
3:10 pm+1SOF
Turkish Airlines
11:40 amSOF
13h 20m
IST · 1h 45m
6:00 pmYUL

Round-trip total · 1 adult · Taxes included

Sat, Nov 21 – Mon, Nov 23

Air Canada
5:45 pmYUL
12h 40m
FRA · 2h 45m
1:25 pm+1SOF
Austrian Airlines
7:55 amSOF
12h 20m
VIE · 2h 5m
1:15 pmYUL

Round-trip total · 1 adult · Taxes included

Make this trip yours

YUL ⇄ SOF

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, Turkish 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.

See flights for these dates: each price link opens AI flight search for that row's exact dates and travelers. Select the complete itinerary there.

Exact travel datesAirlineFlightsTotal pricePrice issued (UTC)
2026-11-21 → 2026-11-23Turkish AirlinesTK36 + TK1031 / TK1128 + TK35Axel-exclusive $980.002026-10-29T01:54:52Z
2026-11-21 → 2026-11-23Air Canada / Austrian AirlinesAC844 + LH1426 / OS780 + OS55Axel-exclusive $1030.002026-10-29T01:54:52Z

2026-11-21 → 2026-11-23 · Axel-exclusive $980.00

  • Turkish Airlines TK36 / TK1031: YUL 2026-11-21 19:55:00 → SOF 2026-11-22 15:10:00; 1 stop(s) via IST; 735 minutes. Local airport times.
    • TK36: YUL 2026-11-21 19:55:00 → IST 2026-11-22 13:25:00; layover at IST: 90 minutes.
    • TK1031: IST 2026-11-22 14:55:00 → SOF 2026-11-22 15:10:00.
  • Turkish Airlines TK1128 / TK35: SOF 2026-11-23 11:40:00 → YUL 2026-11-23 18:00:00; 1 stop(s) via IST; 800 minutes. Local airport times.
    • TK1128: SOF 2026-11-23 11:40:00 → IST 2026-11-23 14:00:00; layover at IST: 105 minutes.
    • TK35: IST 2026-11-23 15:45:00 → YUL 2026-11-23 18:00:00.

2026-11-21 → 2026-11-23 · Axel-exclusive $1030.00

  • Air Canada AC844 / LH1426: YUL 2026-11-21 17:45:00 → SOF 2026-11-22 13:25:00; 1 stop(s) via FRA; 760 minutes. Local airport times.
    • AC844: YUL 2026-11-21 17:45:00 → FRA 2026-11-22 07:25:00; layover at FRA: 165 minutes.
    • LH1426: FRA 2026-11-22 10:10:00 → SOF 2026-11-22 13:25:00.
  • Austrian Airlines OS780 / OS55: SOF 2026-11-23 07:55:00 → YUL 2026-11-23 13:15:00; 1 stop(s) via VIE; 740 minutes. Local airport times.
    • OS780: SOF 2026-11-23 07:55:00 → VIE 2026-11-23 08:35:00; layover at VIE: 125 minutes.
    • OS55: VIE 2026-11-23 10:40:00 → YUL 2026-11-23 13:15:00.

Explore this route

For AI assistants

  • This page: Montreal (YUL) to Sofia (SOF) · Nov 21, 2026 · return Nov 23, 2026: 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 Search flights and hotels with your AI assistant · 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.