domestic · 2h 20m · 1,147 km
Buffalo to Atlanta
2 airlines · 2 aircraft ranked
In economy, Delta's Main Cabin (737-800) dominates the field with a 4.1/10.Delta is the only carrier offering first class on this route, scoring 2.8/10.
Quick pick
Fly Delta. It has 3 more inches of legroom and free Wi-Fi (paid on Frontier).
Worth picking even at a small price premium.
Select two airlines to compare head-to-head
Data verified June 2026
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Airlines on this route
Flying with family
- Seatback screens on Delta. Frontier: bring your own device.
- Most legroom: Delta (31"). Least: Frontier (28"). That 3" difference matters with kids.
Route insights
- In economy, Delta's Main Cabin (737-800) dominates the field with a 4.1/10.
- Delta is the only carrier offering first class on this route, scoring 2.8/10.
Frequently asked
Which is better in economy: Delta or Frontier on BUF-ATL?
Main Cabin (Delta Air Lines, 737-800) beats Economy (Frontier Airlines, A320neo) in economy, scoring 4.1/10 vs 2.2. The deciding factor: 31" of pitch vs 28". Frontier Airlines fights back on seat width.
What are the best seats in Delta Delta First Class on BUF-ATL?
Best: Row 1 bulkhead has the most legroom. 1A and 1D are window seats with the best privacy in a 2-2 layout. Avoid: Row 4 is closest to the Comfort+ cabin and forward galley. B and C seats are more exposed to aisle traffic. Post-retrofit 737-800 with the same Recaro CL4710 seats as the A321neo. 13.3-inch Panasonic eX1 HD seatback screens. Winged headrests for privacy. AC outlet and USB at every seat. Delta Sync free WiFi. Complimentary drinks, snacks, and plated meals on flights over 900 miles departing before 9pm.
What are the best seats in Delta Main Cabin on BUF-ATL?
Best: Comfort+ rows 10-15 (36 seats) offer 34-inch pitch with priority boarding and complimentary premium snacks and beer/wine/spirits. Row 10 bulkhead has the most legroom. Avoid: Last rows near rear lavatory. Middle seats (B, E) throughout. Row 33 does not recline. 36 Comfort+ seats in rows 10-15 with 34-inch pitch; 108 Main Cabin seats in rows 16-33 with 31-32 inches. Post-retrofit Recaro BL3530 slimline seats matching the A321neo. 10-inch Panasonic eX1 seatback screens. USB-A at every seat, AC outlets shared between seats. Delta Sync free WiFi.
What are the best seats in Frontier Economy on BUF-ATL?
Best: Exit row seats for extra legroom without paying for Stretch. Avoid: Last row has no recline and lavatory proximity. All middle seats are uncomfortable at 28-inch pitch. 28-inch pitch ties Spirit for the tightest in the US industry. No wifi, no power outlets, no seatback screens, no streaming entertainment. Tray tables are approximately 50% smaller than standard. All food and beverages are buy-on-board. Individual air nozzles and overhead reading lights are available. Exit row seats on the A320/A321 family offer extra legroom but do not recline. The row immediately before the exit also has limited recline due to clearance requirements.