Delta Air Lines Guide
Airlines
Delta Air Lines consistently ranks as the highest rated U.S. airline for passenger satisfaction and operational reliability. The airline operates from six hub cities with a growing premium cabin strategy that includes Delta One, First Class, Comfort+, and Premium Select. In April 2026, Delta raised baggage fees in line with the rest of the industry while continuing to expand its tiered fare and cabin structure.
This guide covers how Delta’s boarding zones, baggage fees, seat selection, Main Basic (Basic Economy), and SkyMiles loyalty program work in 2026.
- First checked bag $45 prepaid or $50 at airport after April 2026 increase. Free with SkyMiles Amex card.
- 10 boarding zones. Premium cabins and elite status board first. Credit card holders board Zone 5.
- Main Basic (Basic Economy) does not earn SkyMiles, does not include seat selection, boards last in Zone 8
- Carry on bag included on all fares including Main Basic
A reference guide for travelers planning around Delta’s fare tiers, fees, and loyalty program.
Delta Air Lines at a Glance
| Category | Details |
|---|---|
| Carrier Type | Full service legacy carrier (highest rated U.S. airline for satisfaction) |
| Headquarters | Atlanta, Georgia |
| Hub Cities | Atlanta, Detroit, Minneapolis/St. Paul, Salt Lake City, New York JFK, Seattle |
| Alliance | SkyTeam (Air France, KLM, Korean Air, and others) |
| Loyalty Program | SkyMiles (Medallion tiers: Silver, Gold, Platinum, Diamond, Delta 360) |
| First Checked Bag | $45 prepaid / $50 airport. Free with SkyMiles Amex card, Medallion status, military, or premium cabin. |
| Second Checked Bag | $55 |
| Carry On | Included on all fares including Main Basic |
| Seat Selection | Main Basic: assigned after check in (can pay). Main Classic and above: included at booking. |
| Change Fees | None on Main Cabin and above. Main Basic: cancel for partial eCredit (minus $99 fee). |
| Boarding Zones | 10 zones. Delta One/First in Zone 1. Credit card holders in Zone 5. Main Basic in Zone 8. |
| Premium Cabins | Delta One (lie flat), First Class, Premium Select, Comfort+ (extra legroom with complimentary beer and wine) |
Is Delta Air Lines Right for You?
- You prioritize operational reliability and on time performance above all else
- You fly through Atlanta, Detroit, Minneapolis, Salt Lake City, JFK, or Seattle
- You want a growing premium cabin experience (Delta One, Comfort+, Premium Select)
- You hold the SkyMiles Amex card and get free bags and Zone 5 boarding
- You value SkyTeam partner access for international travel through Air France, KLM, or Korean Air
- You book Main Basic and expect to earn miles, select seats, or get upgrades
- You want the lowest total cost and a budget carrier is cheaper after bags
- You fly from a city where American or United dominates the schedule
- You want no change fees on the cheapest fare (Main Basic is nonrefundable)
- You are comparing SkyMiles value against MileagePlus or AAdvantage for your route
Delta Baggage at a Glance
Delta includes one carry on bag and one personal item free on every fare, including Basic Economy. Checked bags start at $45 for the first bag when you prepay, and free checked bags come with Medallion status, an eligible Delta SkyMiles credit card, premium cabins, or active military orders.
For the full fee table, international allowances, overweight and oversize charges, and every way to avoid a bag fee, see the Delta Air Lines Baggage Fees Guide.
Carry-on essentials
Move through the airport fast and keep everything in its place from gate to gate.
Delta Boarding Zones and Seat Selection
Delta uses 10 boarding zones, the most of any major U.S. carrier. The system mixes cabin class, elite status, credit card perks, and fare type into a layered order that can feel confusing at the gate but follows a clear hierarchy.
| Zone | Who Boards |
|---|---|
| 1 | Delta One, First Class |
| 2 | Delta 360, Diamond Medallion, Premium Select |
| 3 | Delta Comfort+ passengers |
| 4 | Platinum Medallion, Gold Medallion, SkyTeam Elite Plus |
| 5 | SkyMiles Amex credit card holders (+ up to 9 companions), Silver Medallion |
| 6 | SkyMiles members in Main Classic |
| 7 | Non SkyMiles members in Main Classic |
| 8 | Main Basic (Basic Economy) |
Families with strollers and car seats board between Zones 2 and 3. Active military board during pre boarding before Zone 1. Medallion members keep their elite boarding zone even when flying on Main Basic fares, unlike American Airlines which is moving elite Basic Economy passengers to a later group.
For a comparison of boarding systems across all carriers, see the Airline Boarding Groups Guide.
Delta Main Basic (Basic Economy)
Delta’s cheapest fare is Main Basic (formerly called Basic Economy). It provides access to the same seat in the same cabin as Main Classic, but with significant restrictions. Main Basic passengers do not earn SkyMiles or Medallion Qualification Dollars. Seats are assigned after check in and may not be together for groups. Changes are not allowed. Cancellation returns a partial eCredit minus a $99 fee. Upgrades (paid or complimentary) are not available. Sky Club access is blocked even for members or credit card holders flying on Main Basic.
The one thing Delta does not restrict on Main Basic is carry on bags. Unlike United, which restricts overhead bin access on its most basic fare, Delta allows a full carry on on every ticket. This is one of the most practical differences between Delta and United for budget travelers.
Delta is also expanding its fare tier system in 2026, adding Basic and Extra options to the First Class and Business Class cabins. This means the tiered approach that exists in economy (Main Basic, Main Classic, Main Extra) will soon extend to premium cabins as well.
SkyMiles and Loyalty Planning
Delta’s SkyMiles program uses Medallion Qualification Dollars (MQDs) earned from spending on flights and credit cards to determine elite status. Tiers run from Silver through Gold, Platinum, Diamond, and the invitation only Delta 360. Each tier unlocks progressively earlier boarding, complimentary upgrades, and bag benefits.
The SkyMiles American Express cards are the entry point for most travelers. The Gold card ($150 per year) includes one free checked bag, Zone 5 boarding, and 2x miles on Delta purchases and restaurants. Higher tier cards add Centurion Lounge access, companion certificates, and MQD boosts. The free bag benefit is tied to your SkyMiles number, not the card you book with, meaning it applies automatically on every Delta flight.
Delta had the lowest average seat selection fees among major carriers in a 2026 NerdWallet study, making it one of the more favorable airlines for travelers who want to choose a seat without paying a premium.
Delta Hubs and Best Routes
Atlanta (ATL) is the world’s busiest airport and Delta’s largest hub by a wide margin. The airline dominates the schedule at Atlanta with more departures than all other carriers combined. Detroit (DTW), Minneapolis/St. Paul (MSP), and Salt Lake City (SLC) are smaller but strategically important hubs connecting the Midwest and Mountain West. New York JFK (JFK) serves as the primary international hub with Delta One service to Europe, Asia, and Latin America. Seattle (SEA) anchors the Pacific Northwest and Asia Pacific routes.
Delta is strongest when you live near one of its hub cities, especially Atlanta where there is no realistic alternative. It is also strong for travelers who want premium cabin products (Delta One is among the best domestic and international business class products) and for those who value operational consistency. Delta is weakest when competing with American’s Latin America network from Miami or United’s Pacific network from San Francisco.
Common Delta Booking Mistakes
Booking Main Basic to save $30 and losing everything. The difference between Main Basic and Main Classic is often $40 to $80. For that amount you get seat selection, mileage earning, change flexibility, Sky Club access (if eligible), and upgrade eligibility. On almost every trip, Main Classic is the better value.
Not holding a SkyMiles Amex card. The free checked bag alone saves $90 on a round trip. Zone 5 boarding guarantees overhead bin space. The card pays for itself on one trip per year. There is no reason to fly Delta regularly without it.
Ignoring Comfort+ as a boarding strategy. If you do not have status or a credit card, purchasing a Comfort+ seat moves you from Zone 6 or 7 to Zone 3. You also get extra legroom, complimentary beer and wine, and premium snacks. The upgrade cost is often $30 to $60 per segment.
Assuming SkyMiles are worth the same everywhere. SkyMiles value fluctuates significantly by route and date. Domestic awards can deliver 1.0 to 1.5 cents per mile. Partner awards through SkyTeam can deliver 2.0 cents or more. Check both before redeeming.
Comparing base fares without total cost. Delta’s fares look higher than Spirit or Frontier, but Delta includes a carry on bag on every fare. Add bag fees to the budget carrier and compare totals. For a full comparison, see the Airline Baggage Fees Guide.
FAQ
How much does Delta charge for checked bags?
First bag $45 prepaid / $50 airport. Second bag $55. Third bag $200. Free bags for Medallion members, SkyMiles Amex card holders, military, and premium cabin passengers.
How many boarding zones does Delta have?
10 zones. Zone 1: Delta One/First. Zone 2: Diamond/Premium Select. Zone 3: Comfort+. Zone 4: Gold/Platinum Medallion. Zone 5: Credit card holders/Silver. Zones 6-7: General. Zone 8: Main Basic.
Does Delta Main Basic earn SkyMiles?
No. Main Basic does not earn SkyMiles or Medallion status credit. No seat selection, no upgrades, no Sky Club access. Carry on bags are still included.
Does Delta include a carry on bag on Basic Economy?
Yes. Carry on bag included on all fares including Main Basic. This distinguishes Delta from United, which restricts carry on access on its most basic fare.
What are the Delta hub cities?
Six hubs: Atlanta, Detroit, Minneapolis/St. Paul, Salt Lake City, New York JFK, and Seattle. Delta dominates Atlanta with more departures than all other carriers combined.
Is the SkyMiles Amex card worth it?
For travelers who fly Delta at least once per year and check a bag, yes. Free checked bag ($90 round trip savings), Zone 5 boarding, and the benefit is tied to your SkyMiles number. Gold card annual fee is $150.
For more airline coverage including baggage fees, boarding groups, and carrier news, see the Airline Travel Guides hub.