Originfacts

Airline guide

Delta Air Lines logo

Delta Air LinesIATA code DL

delta.com(official website, opens in a new tab)

Baggage allowances, fare rules, check-in cut-offs and contact details for Delta Air Lines. Policy figures are read from Delta Air Lines’s own published pages and each one shows where it came from and when we checked it.

Home country
United States
Busiest markets
Atlanta, New York, Detroit
By route count · route data Jul 2026
Destinations
325 in 77 countries
Route data Jul 2026
7 of 7 sections verified· checked 6 Oct 20261 from route dataHow we check

Delta Air Lines at a glance

Delta Air Lines carry-on baggage allowance

Verified 6 Oct 2026

Source: delta.com/us/en/baggage/carry-on-baggage (opens in a new tab)

Carry-on weight by cabin
CabinCarry-on weight
EconomyNo weight limit on most routes (except Singapore max 7 kg, Beijing/Shanghai max 10 kg)
Business & FirstNo weight limit on most routes (except Singapore max 7 kg, Beijing/Shanghai max 10 kg)
Cabin bag size
56 x 35 x 23 cm (22 x 14 x 9 in)

Delta Air Lines checked baggage allowance

Verified 6 Oct 2026

Source: delta.com/us/en/baggage/checked-baggage/first-checked-bag (opens in a new tab)

Checked allowance by cabin
CabinChecked allowance
Economy1 piece up to 23 kg (50 lbs) on transatlantic/transpacific; $35 for 1st bag on US domestic Basic/Main
Business2 pieces up to 32 kg (70 lbs) each (Delta One / First Class)
First3 pieces up to 32 kg (70 lbs) each (First Class / Delta One)

What Delta Air Lines’s cheapest fare includes

Verified 6 Oct 2026

Source: delta.com/us/en/travel-planning-center/change-or-cancel-your-flight/basic-economy-cancellation (opens in a new tab)

Lowest fare
Basic Economy (includes 1 carry-on bag & 1 personal item; seat assigned at check-in; non-changeable & non-refundable)
Seat selection
Seat assigned for free at check-in or gate for Basic Economy; advance seat selection available for a fee or free on Main Cabin
Changes and cancellations
Basic Economy non-changeable; Main Cabin and above have $0 change fees on US domestic & international flights originating in North America

Delta Air Lines cabins and aircraft

Verified 6 Oct 2026

Source: delta.com/us/en/onboard/onboard-experience/overview (opens in a new tab)

Choose a seat by location and legroom, or accept a free seat assignment at check-in. Use your flight seat map because options vary with the aircraft.

Seat options
Delta One (1-2-1 lie-flat suites with sliding doors on A350/A330neo), Delta Premium Select (2-3-2 38" pitch), Delta Comfort+ (extra legroom), and Main Cabin (3-3-3 / 3-3 31-32" pitch)
Reserved or random
Reserve a seat in advance for free on Main Cabin/Premium/Delta One or for a fee on Basic Economy; seat assigned at check-in if unreserved
Family seating
Delta seats children under 13 next to an accompanying adult free of charge at booking or check-in

If your Delta Air Lines flight is delayed or cancelled

Verified 6 Oct 2026

Source: delta.com/us/en/legal/customer-commitment (opens in a new tab)

These are standards published by the carrier for delays and cancellations. On codeshares or interline itineraries, the operating carrier is responsible.

Care
Meal vouchers for controllable delays over 3 hours; hotel accommodation and ground transport for overnight delays.
Rebooking and refunds
Full refund to original payment method or free rebooking on next available flight for controllable delays of 3+ hours.
Compensation
DOT consumer protection rules apply for involuntary denied boarding or cancellations within airline control.

Delta Air Lines check-in times and airport cut-offs

Verified 6 Oct 2026

Source: delta.com/us/en/check-in-security/check-in-requirements (opens in a new tab)

Online check-in opens
24 hours before scheduled departure via delta.com or Fly Delta app
Domestic check-in closes
30 minutes before departure (45 min with checked bags at major US hubs)
International check-in closes
60 minutes before departure for international flights
Boarding closes
15 minutes before departure for domestic; 30 minutes for international

How to contact Delta Air Lines

Verified 6 Oct 2026

Source: delta.com/us/en/need-help/overview (opens in a new tab)

Customer service phone
+1 800-221-1212

Where Delta Air Lines flies

Route data · Jul 2026

Source: Originfacts route-network dataset, built from TravelPayouts route data (updated 2026-07). Not verified by hand.

We track 2,276 Delta Air Lines routes serving 325 destinations across 77 countries.

Destinations
325
Countries
77
Routes tracked
2,276
Longest route
13,582 km

Busiest markets by route count

  1. Atlanta261 routes
  2. New York192 routes
  3. Detroit157 routes
  4. Minneapolis147 routes
  5. Salt Lake City97 routes

A market may include more than one airport.

Longest route in the dataset

Atlanta ATLtoJohannesburg JNB

13,582 km great-circle distance between the two airports.

Destinations in the route data

Common questions about flying Delta Air Lines

What size cabin bag can I take on Delta Air Lines?

According to Delta Air Lines’s own website (delta.com, checked 6 Oct 2026): 56 x 35 x 23 cm (22 x 14 x 9 in).

How heavy can my Delta Air Lines carry-on bag be?

According to Delta Air Lines’s own website (delta.com, checked 6 Oct 2026): No weight limit on most routes (except Singapore max 7 kg, Beijing/Shanghai max 10 kg).

What is the Delta Air Lines Economy checked baggage allowance?

According to Delta Air Lines’s own website (delta.com, checked 6 Oct 2026): 1 piece up to 23 kg (50 lbs) on transatlantic/transpacific; $35 for 1st bag on US domestic Basic/Main.

When can I check in online with Delta Air Lines?

According to Delta Air Lines’s own website (delta.com, checked 6 Oct 2026): 24 hours before scheduled departure via delta.com or Fly Delta app.

When does Delta Air Lines check-in close for domestic flights?

According to Delta Air Lines’s own website (delta.com, checked 6 Oct 2026): 30 minutes before departure (45 min with checked bags at major US hubs).

When does Delta Air Lines check-in close for international flights?

According to Delta Air Lines’s own website (delta.com, checked 6 Oct 2026): 60 minutes before departure for international flights.

What is the Delta Air Lines customer service phone number?

According to Delta Air Lines’s own website (delta.com, checked 6 Oct 2026): +1 800-221-1212.

How many destinations does Delta Air Lines fly to?

Originfacts tracks 325 Delta Air Lines destinations across 77 countries, on 2,276 routes.

Where is Delta Air Lines based?

Delta Air Lines is based in United States. In the Originfacts route dataset, its busiest market is Atlanta, followed by New York, Detroit and Minneapolis.

What aircraft appear on Delta Air Lines routes?

The routes we hold name 76W, Airbus A319, Airbus A320, Airbus A330, Airbus A330-200, Airbus A330-300, Airbus A340-300, Airbus A340-600, Airbus A380, Airbus A380-800, Boeing 737, Boeing 737-400, Boeing 737-600, Boeing 737-700, Boeing 737-800, Boeing 737-900, Boeing 747, Boeing 747 Combi, Boeing 747-400, Boeing 757, Boeing 757-200, Boeing 757-300, Boeing 767, Boeing 767-200, Boeing 767-300, Boeing 767-400, Boeing 777, Boeing 777-200ER, Boeing 777-200LR, Boeing 777-300ER, Boeing/McDonnell Douglas DC-9-50, Boeing/McDonnell Douglas MD-11, Boeing/McDonnell Douglas MD-88, Boeing/McDonnell Douglas MD-90, Canadair Regional Jet, Canadair Regional Jet 700, Canadair Regional Jet 900, Dash 8-400, Embraer E135/140/145 Regional Jet, Embraer E170, Embraer E170/190, Embraer E175 and Embraer EMB-120 Brasilia. That dataset accumulates over time, so treat it as a record of what has flown rather than a current fleet list.

What is the longest Delta Air Lines route?

Atlanta to Johannesburg, at 13,582 km.

Sources and verification

Baggage, fare, check-in, disruption and contact figures are published only when they are read from Delta Air Lines’s own pages or a named regulator, and each one shows the page and the date it was checked. Where sources disagree we show both and publish neither. Route and destination figures come from the Originfacts route dataset and show its date instead; they are not verified by hand.