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DL5666 Flight Status Delta Air Lines: Washington to Boston (DAL5666)

Are you looking for the June 4th, 2026 DL 5666 Boston to Washington flight? Click here to go to our DL5666 Boston to Washington Flight Status page >

DL 5666 Washington to Boston Flight Status

Delta Air Lines Flight DL5666 from Washington Ronald Reagan National Airport DCA to Boston Logan International Airport BOS is not scheduled for today June 4th, 2026.
The last time the flight was scheduled was on September 6th, 2025.
Check the table below for DL5666's most recent flight history:

DL 5666 Flight Status & Schedule

Date Departure Arrival Status
Sep 06 20:15 19:08
En-Route
 Track >
Aug 23 17:23 18:30
Landed
 Track >
Aug 16 17:38 18:46
Landed
 Track >
< All DCA Departures All BOS Arrivals >

Delta Air Lines DL 5666 Washington to Boston Flight Information

Delta Air Lines Flight DL5666 connects Washington, United States to Boston, United States, taking off from Washington Ronald Reagan National Airport DCA and landing at Boston Logan International Airport BOS.

How long is the DL5666 flight from Washington to Boston?

The average flight time from Washington to Boston is 1 hour and 7 minutes. The flight distance is 641 km / 398 miles and the average flight speed is 494 km/h / 307 mph.

What is the On-Time Performance (OTP) of Delta Air Lines Flight DL5666 Washington to Boston?

The Airportia On-Time Performance Rating for Delta Air Lines Flight DL5666 is 5/5 stars. This metric is calculated using data from the past 10 flights.

Which terminal is the flight DL5666 arriving at?

Flight DL5666 arrives at Boston Logan International Airport (BOS) Terminal A.

When was the latest DL5666 flight?

The latest flight took off on Saturday, September 6th, 2025 with the flight status being En-Route on 19:08.

How else can the flight DL5666 be referenced as?

This Delta Air Lines flight can also be referenced as DAL5666, DL 5666, DAL 5666.

How often is flight DL5666 delayed?

On average, 0% of all DL5666 flights are delayed. The average delay is 0 minutes.

Can I get compensation for my delayed or cancelled DL5666 flight or baggage issues?

If your DL5666 flight was cancelled, delayed, or if you experienced baggage issues such as delayed, damaged, or lost bags, you may be entitled to compensation. Compensation amounts and eligibility depend on various regulations, including EC 261/2004, UK261, CA Montreal Convention, US GoodWill, BR-ANAC, SA-GACA and TK-SHY.

See our DL5666 Flight Tracker above for more details.

DL5666 Flight Delay Compensation up to 600€!

Claim compensation for your flight delay or cancellation!

Flight delays happen, but that doesn’t mean you have to accept them. You may be entitled to as much as 600€ in compensation if your flight has been delayed, cancelled or overbooked within the last three years. Claim Compensation Now >

Check Compensation >

DL5666 and Washington DCA to Boston BOS Flights

Flight DL5666 is code-shared by 2 airlines using the flight numbers LY4182, VS3335

Other flights departing from Washington DCA: AA4764, AA4345, AA4381, AA2205

Other flights arriving at Boston BOS: DL1596, UA3423, DL4168, WS1622

All flights connecting Washington DCA to Boston BOS.

DL5666 Delta Air Lines Flight: Washington to Boston Route Map

DL5666 Delta Air Lines Flight Map: Washington to Boston
Flight Delay Compensation up to 600€/$: Claim for delay, cancellation, or baggage issues >
New Flights: 5Y773 VB9397 VT5007 VF1505 KJ6346 DP5513 9M9925 RQ2009 CG2570 MX9717
See Also: Flight Tracker Airports Airlines News Flights Monitor Delay Compensation
Flight-schedule data supplied by Aviation Edge Real-time Flight Schedules API.