Skip to content
FriendlySkies Review
Menu

Flight DL373

Delta Air Lines flight DL373

Read Delta Air Lines reviews →

Looking for DL373 in the air…

Las Vegas (LAS) to Boston (BOS)

Historically, this flight arrives 15+ minutes late 17% of the time, and when it is late the delay averages 58 minutes. It was cancelled 2.7% of the time.

On-time arrivals
83.1%
Less than 15 minutes late
Cancelled
2.7%
Of scheduled flights
Average delay when late
58 min
Flights arriving 15+ minutes late
Flights tracked
182
Scheduled flights in the period

What caused the delays

  • Late-arriving aircraft 50%
  • Airline (crew, maintenance, cleaning) 31%
  • Air traffic control & airport 19%
  • Extreme weather 0%
  • Security 0%

Share of delay minutes airlines attributed to each cause (BTS).

Boston (BOS) to Las Vegas (LAS)

Historically, this flight arrives 15+ minutes late 30% of the time, and when it is late the delay averages 60 minutes. It was cancelled 0.0% of the time.

On-time arrivals
70.2%
Less than 15 minutes late
Cancelled
0.0%
Of scheduled flights
Average delay when late
60 min
Flights arriving 15+ minutes late
Flights tracked
47
Scheduled flights in the period

What caused the delays

  • Late-arriving aircraft 78%
  • Airline (crew, maintenance, cleaning) 18%
  • Air traffic control & airport 4%
  • Extreme weather 0%
  • Security 0%

Share of delay minutes airlines attributed to each cause (BTS).

Chicago (ORD) to Seattle (SEA)

Historically, this flight arrives 15+ minutes late 68% of the time, and when it is late the delay averages 88 minutes. It was cancelled 3.4% of the time.

On-time arrivals
32.1%
Less than 15 minutes late
Cancelled
3.4%
Of scheduled flights
Average delay when late
88 min
Flights arriving 15+ minutes late
Flights tracked
29
Scheduled flights in the period

What caused the delays

  • Late-arriving aircraft 58%
  • Airline (crew, maintenance, cleaning) 23%
  • Air traffic control & airport 18%
  • Extreme weather 0%
  • Security 0%

Share of delay minutes airlines attributed to each cause (BTS).

Nashville (BNA) to Seattle (SEA)

Historically, this flight arrives 15+ minutes late 57% of the time, and when it is late the delay averages 61 minutes. It was cancelled 4.2% of the time.

On-time arrivals
43.5%
Less than 15 minutes late
Cancelled
4.2%
Of scheduled flights
Average delay when late
61 min
Flights arriving 15+ minutes late
Flights tracked
24
Scheduled flights in the period

What caused the delays

  • Airline (crew, maintenance, cleaning) 47%
  • Late-arriving aircraft 35%
  • Air traffic control & airport 17%
  • Extreme weather 1%
  • Security 0%

Share of delay minutes airlines attributed to each cause (BTS).

Las Vegas (LAS) to Seattle (SEA)

Only 12 flights on record, which is too few for reliable odds.

On-time arrivals
100.0%
Less than 15 minutes late
Cancelled
0.0%
Of scheduled flights
Average delay when late
—
Flights arriving 15+ minutes late
Flights tracked
12
Scheduled flights in the period

In the news

More headlines →

Headlines found by Google News; stories open on the publisher's site.

On-time arrivals by month
Sep 2025 Aug 2026
Show as table
MonthOn timeFlights
September 2025 70.8% 24
October 2025 66.7% 36
November 2025 89.3% 28
December 2025 85.2% 27
January 2026 100.0% 22
February 2026 95.0% 22
March 2026 80.0% 30
April 2026 70.0% 30
May 2026 90.0% 21
June 2026 100.0% 1
July 2026 43.5% 24
August 2026 32.1% 29

Source: U.S. DOT Bureau of Transportation Statistics on-time data, September 2025 – August 2026. Covers flights operated by reporting U.S. carriers. About our data

Latest airport & airline headlines

More headlines →

Headlines found by Google News; stories open on the publisher's site.