Doha to Cascade (DOH-SEZ): nonstop flights and who flies them

Qatar Airways flies the DOH to SEZ nonstop about 7 times a week. In the timetable below it flies as QR 678, scheduled at 4h 40m to 4h 50m for the 2,086 miles.

Schedule last confirmed . Departure times come from 2LNR's schedule data; confirm with the airline before you book.

Updated .

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7
Flights a week, 4-week average
4h 40m to 4h 50m
Scheduled flight time
2,086 mi
Nonstop distance
Free
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Doha to Cascade flight schedule

Scheduled nonstop departures for DOH to SEZ starting October 23, 2026, last checked against our schedule feed on October 18, 2026. Airlines retime and cancel flights, so confirm with the airline before you book.

Schedule data dated .

Scheduled nonstop departures from Doha (DOH) to Cascade (SEZ)
Date Flight Airline Departs DOH Arrives SEZ Duration Aircraft
QR 678Qatar Airways02:4008:304h 50mBoeing 777-200LR
QR 678Qatar Airways03:0508:554h 50mBoeing 777-200LR
QR 678Qatar Airways03:0508:554h 50mBoeing 777-200LR
QR 678Qatar Airways02:5008:304h 40mBoeing 777-300ER
QR 678Qatar Airways03:0508:554h 50mBoeing 777-200LR
QR 678Qatar Airways02:5008:304h 40mBoeing 777-300ER
QR 678Qatar Airways03:0508:554h 50mBoeing 777-200LR

Showing all 7 scheduled DOH to SEZ departures across 7 days with service, starting October 23, 2026. Later dates are on the interactive map.

Departure and arrival times are local at their own airport, so an arrival can fall on a different local date than the departure; the duration column is the true elapsed flying time. A dash means the airline hasn't filed that value in the schedule data we hold. Aircraft are the equipment the airline filed, named where the code pins down one type and shown as the family or the bare code where it doesn't. Swaps can happen up to departure.

See every DOH to SEZ date on the interactive map

Aircraft on the Doha to Cascade nonstop

Qatar Airways flies the departures in the schedule table on this page with the Boeing 777-200LR and the Boeing 777-300ER. Each linked aircraft page shows where that airline schedules it. Airlines can swap aircraft up to departure.

The full DOH to SEZ nonstop schedule

This page carries the full DOH to SEZ nonstop schedule, who operates each departure and how often it runs; the reverse direction is linked below.

See the schedule

Who operates each DOH to SEZ nonstop and how often it runs, from 2LNR's schedule data.

Plan on the map

See DOH to SEZ on the interactive route map, with schedules, connections, and route statistics.

Airlines flying Doha to Cascade nonstop

Carriers operating DOH to SEZ nonstop in the current schedule.

See DOH to SEZ on the interactive map →

Frequently asked questions about DOH to SEZ

How long is the flight from Doha (DOH) to Cascade (SEZ)?
Scheduled flight times from Doha (DOH) to Cascade (SEZ) run from 4h 40m to 4h 50m across the departures in the schedule table on this page. The nonstop covers about 2,086 miles, and airlines adjust scheduled times by season, so confirm with the airline before you book.
Which airlines fly nonstop from DOH to SEZ?
Qatar Airways is currently the only airline flying DOH to SEZ nonstop. 2LNR doesn't show award or upgrade space for it on DOH to SEZ, so this page carries the schedule rather than a space claim.
How many flights a week are there from DOH to SEZ?
About 7 nonstop flights a week run between Doha (DOH) and Cascade (SEZ) in the current schedule, operated by Qatar Airways. Frequency shifts by season, and the schedule table on this page shows what is scheduled next.
What time do flights from DOH to SEZ depart?
Scheduled DOH to SEZ nonstops in the next 7 days with service leave between 02:40 and 03:05, local time at Doha. The schedule table on this page lists every departure by date, with its arrival time and aircraft.
Which flights operate DOH to SEZ nonstop?
Qatar Airways flies QR 678 nonstop from Doha (DOH) to Cascade (SEZ), the only flight number in the schedule table on this page. The table lists each date with its departure and arrival times and aircraft.
Does 2LNR show upgrade or award space on DOH to SEZ?
Not on this route: 2LNR doesn't show award or upgrade space for Qatar Airways on DOH to SEZ. The page carries the full DOH to SEZ nonstop schedule and who flies each departure, and the reverse direction is linked below.

See the full DOH to SEZ nonstop schedule

Every scheduled departure on this route, with who flies it. 2LNR shows upgrade and award space by date on the carriers it tracks, the next 14 days free on every product and the full horizon on Pro.

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