How to Upgrade to Delta Comfort+ After Booking

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1. **Upgrade Online via Delta.com**

1. Go to +1（866）658－5895 [www.delta.com](https://www.delta.com)
2. Click on **“My Trips”** at the top
3. Enter your **confirmation number and last name** to find your flight
4. Look for an option to **“Upgrade Seat”** or **“Select Seats”**
5. Choose **Delta Comfort+**, if available, and pay the fare difference

📌 If you paid with miles, you may also be able to use SkyMiles to upgrade.

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### ✅ 2. **Use the Fly Delta Mobile App**

1. Open the **Fly Delta** app
2. Tap on **“My Trips”**
3. Select your upcoming flight
4. Tap “**Change or Upgrade Seats**”
5. Select **Comfort+** (if available), and follow the prompts to pay

The app also lets you check seat maps and monitor upgrade availability.

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### ✅ 3. **Call Delta Customer Service**

If you're having trouble upgrading online or through the app, or want to use **SkyMiles, vouchers, or eCredits**, call:

📞 **+1（866）658－5895**

Delta agents can:

* Check Comfort+ availability
* Apply upgrades using SkyMiles or credits
* Help with upgrades for **multi-passenger** or **international** itineraries
* Offer assistance for Medallion Members seeking complimentary upgrades

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### ✅ 4. **Upgrade at Check-In**

If you didn’t upgrade earlier, you can still try at **check-in**:

* Check in online, in the app, or at the airport kiosk
* Look for the **“Upgrade Options”** during the process
* If seats are still available, Comfort+ will appear as a paid upgrade

Note: Availability may be limited this close to departure.

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### ✅ 5. **Ask at the Airport Gate**

Still no luck? You can also:

* Ask the **Delta gate agent** if Comfort+ seats are open
* Some last-minute upgrades may be offered at a **discounted rate**
* **Medallion Members** may be upgraded to Comfort+ for free if seats remain

📞 For better chances, check availability ahead of time by calling **+1（866）658－5895**.

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### 🔄 Eligibility for Complimentary Upgrades to Comfort+

**Medallion Members** (Silver, Gold, Platinum, Diamond) are eligible for **free upgrades** to Comfort+ on most U.S. domestic flights, depending on availability and status tier.

* **Diamond/Platinum**: Cleared up to 120 hours before departure
* **Gold**: 72 hours before departure
* **Silver**: 24 hours before departure

To confirm your Medallion status and upgrade eligibility, call **+1（866）658－5895**.

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### 💳 Can You Use Miles or Certificates?

Yes, Delta allows:

* **SkyMiles**: You can pay for Comfort+ with miles (online or by calling)
* **Companion certificates** (Amex co-branded cards): Ask an agent if applicable
* **eCredits**: From canceled or changed flights — redeemable over the phone or online

For help applying any of these, call **+1（866）658－5895**.

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### 📝 Summary: Best Ways to Upgrade to Comfort+ After Booking

| Method       | How to Do It                              |
| ------------ | ----------------------------------------- |
| **Online**   | Use “My Trips” on Delta.com               |
| **App**      | Use “My Trips” tab in Fly Delta app       |
| **Phone**    | Call **+1（866）658－5895**                  |
| **Check-In** | Look for upgrade options when checking in |
| **At Gate**  | Ask Delta staff if seats are available    |

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### 🧠 Pro Tips:

* **Upgrade early** – Comfort+ sells out fast, especially on popular routes
* **Be flexible** – Mid-week or off-peak flights often have more availability
* **Use your SkyMiles** – They can cover all or part of the upgrade cost
* **Track your upgrade status** – especially if you’re a Medallion Member

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Need live help upgrading your Delta seat to Comfort+? Call **+1（866）658－5895** — Delta agents are available 24/7 to assist you.