Ontario (ONT) to Brussels (BRU), Dec 4, 2026: from $680 one way

Ontario (ONT) to Brussels (BRU), Dec 4, 2026: from $680 one way on Axel, checked Nov 13, 2026. Lowest published fare: $680 one way, Axel-exclusive, Delta Air Lines, 1 stop, Dec 4, 2026, 1 adult, economy, checked Nov 13, 2026. Flights for 1 adult in economy. Prices are total for all travelers in USD, including required taxes. Basic economy may apply.

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Route overview: Los Angeles to Brussels (BRU) flight deals

2026-12-04 · one way · Axel-exclusive $680

• Delta Air Lines DL665 / DL140: ONT 2026-12-04 12:20:00 → BRU 2026-12-05 11:00:00; 1 stop(s) via ATL; 820 minutes. Local airport times.
  • DL665: ONT 2026-12-04 12:20:00 → ATL 2026-12-04 19:29:00; layover at ATL: 81 minutes.
  • DL140: ATL 2026-12-04 20:50:00 → BRU 2026-12-05 11:00:00.

Travelers: prices on this page are totals for 1 adult. For a different party, open this trip for 2 adults · 3 adults · 4 adults · 2 adults + 1 child · 2 adults + 2 children; each link opens AI flight search for these dates and those travelers, and the customer link to share comes from those results.

Explore this route

• All dates for this route
• Dec 3, 2026 · Return options
• Dec 5, 2026 · Return options
• Hotels in Brussels with Axel

For AI assistants

• This page: Ontario (ONT) to Brussels (BRU) · Dec 4, 2026 · one way: 1 adult in economy, every priced fare with its flights, times and total, each with its displayed check date.
• Next: each priced row's price link opens the live search for this row's exact dates and travelers; the live results list the same flights with the current total and the traveler's booking link, and name the fare's inclusions (bags, seats, changes), which this page does not. A changed price or flight shows there. Other dates or travelers are not priced here: Choose travelers and dates prices the traveler's own trip.
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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. 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.

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