Atlanta to Buffalo (ATL-BUF): nonstop upgrade & award space

Delta Air Lines and Frontier Airlines fly nonstop between Atlanta (ATL) and Buffalo (BUF), roughly 31 times a week. With Delta Air Lines running most of the schedule, the shape of a week is predictable, which makes an open premium seat on a given date easy to spot and quick to lose. 2LNR tracks confirmed upgrade and award space on Delta Air Lines, on every ATL to BUF departure, so you know which flights have space before you book.

Schedule last confirmed September 6, 2026. Departure times come from 2LNR's schedule data; confirm with the airline before you book.

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Nonstop flights a week

713 mi

Nonstop distance

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Atlanta to Buffalo flight schedule

Scheduled nonstop departures for ATL to BUF, last checked against our schedule feed on September 6, 2026. Airlines retime and cancel flights, so confirm with the airline before you book.

Scheduled nonstop departures from Atlanta (ATL) to Buffalo (BUF)
Date	Flight	Airline	Departs ATL	Arrives BUF	Duration	Aircraft
Wed, Sep 9	DL 1384	Delta Air Lines	09:10	11:10	2h	321
Wed, Sep 9	F9 1408	Frontier Airlines	10:48	12:55	2h 7m	32N
Wed, Sep 9	DL 2266	Delta Air Lines	14:05	16:03	1h 58m	321
Wed, Sep 9	DL 2050	Delta Air Lines	16:37	18:43	2h 6m	321
Wed, Sep 9	DL 2334	Delta Air Lines	21:52	23:52	2h	321
Thu, Sep 10	DL 1384	Delta Air Lines	09:10	11:10	2h	321
Thu, Sep 10	DL 2266	Delta Air Lines	14:05	16:03	1h 58m	321
Thu, Sep 10	DL 2050	Delta Air Lines	16:37	18:43	2h 6m	321
Thu, Sep 10	DL 2334	Delta Air Lines	21:52	23:52	2h	321
Fri, Sep 11	DL 1384	Delta Air Lines	09:10	11:10	2h	321
Fri, Sep 11	F9 1408	Frontier Airlines	10:48	12:55	2h 7m	32N
Fri, Sep 11	DL 2266	Delta Air Lines	14:05	16:03	1h 58m	321
Fri, Sep 11	DL 2050	Delta Air Lines	16:37	18:43	2h 6m	321
Fri, Sep 11	DL 2334	Delta Air Lines	21:52	23:52	2h	321
Sat, Sep 12	DL 1384	Delta Air Lines	09:10	11:10	2h	321
Sat, Sep 12	F9 1408	Frontier Airlines	10:43	12:50	2h 7m	32Q
Sat, Sep 12	DL 2266	Delta Air Lines	14:05	16:03	1h 58m	321
Sat, Sep 12	DL 2334	Delta Air Lines	21:52	23:52	2h	321
Sun, Sep 13	DL 1384	Delta Air Lines	09:10	11:10	2h	321
Sun, Sep 13	DL 2266	Delta Air Lines	12:53	14:51	1h 58m	321
Sun, Sep 13	DL 2050	Delta Air Lines	16:37	18:43	2h 6m	321
Sun, Sep 13	DL 2334	Delta Air Lines	21:52	23:52	2h	321
Mon, Sep 14	DL 1384	Delta Air Lines	09:10	11:10	2h	321
Mon, Sep 14	F9 1408	Frontier Airlines	10:48	12:55	2h 7m	32N
Mon, Sep 14	DL 2266	Delta Air Lines	12:50	14:50	2h	321
Mon, Sep 14	DL 2050	Delta Air Lines	15:50	17:54	2h 4m	321
Mon, Sep 14	DL 2334	Delta Air Lines	21:52	23:52	2h	321
Tue, Sep 15	DL 1384	Delta Air Lines	09:10	11:10	2h	321
Tue, Sep 15	DL 2266	Delta Air Lines	12:50	14:50	2h	321
Tue, Sep 15	DL 2050	Delta Air Lines	15:50	17:54	2h 4m	321
Tue, Sep 15	DL 2334	Delta Air Lines	21:52	23:52	2h	321

Showing all 31 scheduled ATL to BUF departures across the next 7 days with service. 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 has not filed that value in the schedule data we hold. Aircraft are IATA equipment codes as filed, and can change up to departure.

See every ATL to BUF date on the interactive map

Confirmed upgrade & award space on ATL to BUF departures

2LNR tracks confirmed upgrade and award space on Delta Air Lines, segment by segment and date by date. Open the calendar for Atlanta to Buffalo to see which departures have space, the next 14 days free on every product and the full horizon on Pro.

See real availability

Confirmed upgrade and award seats on each ATL to BUF 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 ATL to BUF on the interactive route map, with schedules, connections, and route statistics.

Airlines flying Atlanta to Buffalo nonstop

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

See ATL to BUF on the interactive map →

Frequently asked questions about ATL to BUF

How far is Buffalo from Atlanta?

ATL to BUF covers about 713 miles nonstop. Flight times vary by aircraft and season; the schedule table on this page lists each scheduled departure with its own times.

Which airlines fly nonstop from ATL to BUF?

Delta Air Lines and Frontier Airlines fly the route nonstop. 2LNR tracks confirmed upgrade and award space on Delta Air Lines.

How many flights a week are there from ATL to BUF?

About 31 nonstop flights a week run between Atlanta and Buffalo in the current schedule, operated by Delta Air Lines and Frontier Airlines. Frequency shifts by season, and the schedule table on this page shows what is scheduled next.

What time do flights from ATL to BUF depart?

Scheduled ATL to BUF nonstops in the next 7 days with service leave between 09:10 and 21:52, local time at Atlanta. The schedule table on this page lists every departure by date, with its arrival time and aircraft.

How do I check upgrade or award availability on ATL to BUF?

Open the ATL to BUF route on the interactive map or the matrix to see confirmed upgrade and award space by date on Delta Air Lines, the next 14 days free and the full horizon on Pro. On Pro you can also set an alert on the route and 2LNR notifies you when space opens.

Never miss ATL to BUF upgrade or award space

See what is open by date on this route, the next 14 days free on every product and the full horizon on Pro.

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