Route guide

Lesquin to Constantine (LIL-CZL): Nonstop Upgrade & Award Space

Air Algérie flies nonstop from Lesquin (LIL) to Constantine (CZL) just twice a week. With so few departures, each one carries the only premium seats on the route that day. 2LNR tracks confirmed upgrade and award space on all of them, so a rare opening doesn't slip past you.

Data current as of July 21, 2026, refreshed on an ongoing basis as new schedules and seats are confirmed.

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2
Nonstop flights a week
1,001 mi
Nonstop distance
Free
To get started

Confirmed upgrade & award space on every LIL to CZL departure

2LNR tracks confirmed upgrade and award availability on American, Delta, and Alaska and across 30 airlines, segment by segment, date by date. Open the calendar for Lesquin to Constantine to see which departures have real space, or watch the route and get alerted when space opens.

See real availability

Confirmed upgrade and award seats on each LIL to CZL departure, checked against live inventory so you know what is open before you book.

Set an alert

Premium inventory turns over fast. Watch this route and 2LNR notifies you when space appears on a date you are tracking.

Plan on the map

See LIL to CZL on the interactive route map, with schedules, connections, and route statistics.

Airlines flying Lesquin to Constantine nonstop

Carriers operating LIL to CZL nonstop in the current schedule. 2LNR tracks confirmed upgrade and award space on each of them.

  • Air Algérie
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Frequently asked questions about LIL to CZL

How far is Constantine from Lesquin?
LIL to CZL covers about 1,001 miles nonstop. Flight times vary by aircraft and season; each scheduled departure on this page lists its own times.
Which airlines fly nonstop from LIL to CZL?
Air Algérie is currently the only airline flying LIL to CZL nonstop. 2LNR tracks confirmed upgrade and award space on every Air Algérie departure.
How often does LIL to CZL operate?
The nonstop currently runs twice a week, on Air Algérie. Thin schedules like this change by season, and an alert will catch anything added.
How do I check upgrade or award availability on LIL to CZL?
Open the LIL to CZL calendar on this page to see confirmed upgrade and award space by date. You can also set an alert on the Lesquin to Constantine route, and 2LNR will notify you when space opens. It's free to start.

Never miss LIL to CZL upgrade or award space

Track confirmed availability, set alerts, and book with confidence. Free to start, no credit card required.

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