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DL639 Flight Information & Schedule

Delta Air Lines · Los Angeles International Airport (LAX) to Boston Logan International Airport (BOS)

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DL639 Los Angeles International Airport to Boston Logan International Airport nonstop flight: schedule, airports, aircraft and travel guide.

DL639 Flight Overview

DL639 is operated by Delta Air Lines and connects Los Angeles International Airport (LAX) and Boston Logan International Airport (BOS). Scheduled departure: 2026-10-29 06:40 (UTC-07:00); scheduled arrival: 2026-10-29 15:10 (UTC-04:00).

AirlineDelta Air Lines
Flight numberDL639
RouteLAX to BOS
Scheduled duration5 hr 30 min

Los Angeles to Boston Route Information

DL639 is a nonstop flight from Los Angeles International Airport (LAX) to Boston Logan International Airport (BOS). Use the information below to plan your journey.

Route distanceApprox. 4,200 km
Scheduled flight time5 hr 30 min
Time difference180 min
Flight typenonstop
01

Departure

Scheduled departure: 2026-10-29 06:40 (UTC-07:00). Confirm airport transport and terminal opening hours in advance.

02

Arrival

Scheduled arrival: 2026-10-29 15:10 (UTC-04:00). Arrange pickup, hotel and onward transport for the arrival date.

03

Time zones

Departure: Los Angeles (UTC-07:00); arrival: Boston (UTC-04:00).

DL639 On-time Performance & History

Methodology

90%Arrival on-time rate
Sample flights90 (flights)
Average departure delay37 min
Average arrival delay5 min
Cancllation rate1%
Longest delay-
Early arrivals57%

Historical statistics are for reference only and do not predict future flight performance.

Aircraft, Cabin & Services

Based on currently published aircraft and cabin information; the operating aircraft may change.

Published aircraft type

Boeing 757-200 (winglets) Passenger

Economy 17 in; Business 37 in

Seat layout168

Business Class2-2

37 in

Seat configuration depends on the operating aircraft

Economy Class3-3

17 in

MealsComplimentary snacks and drinks on flights over 250 miles; meals on long-haul international

Inflight entertainmentSeatback entertainment system

Inflight Wi-FiWi-Fi is available

Availability and fees depend on the flight

PowerBusiness: USB port and power outlet; Economy: USB port and power outlet

BassinetAvailable

Accessibility-

DL639 Airports

Terminals follow the published schedule; check official airline channels for same-day gates and operations.

Los Angeles International Airport Departure & Boston Logan International Airport Arrival Guide

Departure date: 2026-10-29. Terminal and arrival information helps plan your journey.

LAX

Departing from Los Angeles International Airport

DL639 is scheduled to depart from T3. Allow time for international check-in, baggage drop, security and immigration.

BOS

Arriving at Boston Logan International Airport

Scheduled arrival is at A. After immigration, take the MRT, taxi, ride-hailing service or airport bus to the city.

 

Planning your arrival

Scheduled arrival: 2026-10-29 15:10. Use the arrival date when booking hotels and pickup services.

Flight Changes, Cancellations & Missed Flights

If the schedule or aircraft changes, follow the booking channel and operating carrier rules.

01

Schedule changes

After an airline or booking-platform notice, confirm the new date, terminal and connecting transport.

02

Cancellation and changes

Refund, rebooking and involuntary-change rules depend on the booking channel, fare conditions and airline notice.

03

Missed flight

If you may not reach the airport on time, contact the booking channel or airline quickly to protect later sectors.

Check-in, Baggage & Entry Tips

International check-in deadlines, baggage allowance and entry requirements may vary by fare and traveller.

01

Arrive early for check-in

Arrive at least 3 hours before departure. Counter opening times and online check-in rules follow Los Angeles International Airport guidance.

02

Check baggage allowance

Checked and carry-on baggage allowances depend on cabin, fare rules and membership tier. See the baggage terms in your booking.

03

Prepare entry documents

Before departure, check passport validity, visa or visa-free eligibility, andBoston Logan International Airport’ latest arrival declaration requirements.

What should I check before flying DL639?

01

Check the departure date

For an overnight flight, check the departure date on your ticket and plan airport transport in advance.

02

Confirm the operating carrier

Follow the airline rules shown in your booking for check-in and checked baggage.

03

Check boarding information

Gates and operating times may change; follow airline notices and airport displays.

Popular route recommendations

DL639 Frequently Asked Questions

Which airline operates this flight?

DL639 is operated by Delta Air Lines.

Where does it depart and arrive?

Los Angeles International Airport (LAX) → Boston Logan International Airport (BOS).

What are the departure and arrival times?

Scheduled departure 06:40, arrival 15:10 · 5 hours 30 minutes.

Which terminal is used for check-in?

Departure terminal T3, arrival terminal A. Check-in, gate and baggage belt are announced on the day.

Are meals and inflight entertainment available?

Meals: Complimentary snacks and drinks on flights over 250 miles; meals on long-haul international. Inflight entertainment: Seatback entertainment system.

Explore This Route

Departure airportFlights from Los Angeles International Airport
Arrival airportBoston Logan International Airport information
Operating airlineDelta Air Lines information