Delta In-Flight Wi-Fi (2025): How to Connect, Cost & International

Delta In-Flight Wi-Fi (What is it?)

Delta's onboard internet is branded Delta Sync Wi-Fi, a gate to gate connection plus a personalized portal with partner offers (Paramount+, YouTube Premium, Resy, Uber, T-Mobile and more). Most connections run on Viasat satellite service; some air craft still use Intelsat during the transition. Coverage and performance of the Wi-Fi can vary by tail and route. Sign in with your SkyMiles account to unclock access on equipped aircraft. Registering for a SkyMiles account is free! Learn more on your frequent flyer number below.

Joining SkyMiles Onboard

1. Airplane Mode on and Wi-Fi on.
2. Select DeltaWifi.com. If the portal doesn't pop, type deltawifi.com in your browser.
3. Tap Sign in with SkyMiles (or Join for free on the porta, then sign in). If your flight still shows paid service, you can purchase a Flight Pass there.

Delta In-Flight Wi-Fi Cost

If you don't want to join SkyMiles, you can still buy internet on elgible flights at the protal. The consumer coverage typically quotes about $5 per flight, but the live price shown onboard is the on that applies. (Joinging SkyMiles is free and can be done in-flight).

Refunds & Support

Delta offers a full refund path for paid passes. Check your email receipt:

• If the sender is Wi-Fi Onboard, use that vendor's Customer Care page.
• If the sender is Delta Air Lines, message Delta (in-flight or after) to reach a specialist.

How to Connect to Delta In-Flight Wi-Fi (Step by Step)

1. Turn on AIrplane Mode, then enable Wi-Fi.
2. Join the aircraft network; your browser should open the Delta Wi-Fi portal automatically.
3. Tap Sign in with SkyMiles for free access (or select Purchase if you prefer to pay without joining).
4. You'll land in the Delta Sync portal — browse, message, and stream (e.g., a 24-hour Paramount+ session for members on eligible flights).

Delta In-Flight Wi-Fi: Coverge & Which Aircraft Have it

• Domestic Mainline: Free Wi-Fi for SkyMiles members on nearly all domestic mainline flights.
• Delta Connection & 717: Rollout is in progress; availability can vary by route and aircraft. Check your flight.
• Long haul international: Most transatlantic flights now offer free access as of April 2025; other long-haul routes are being added as Viasat frames are acitivated.

How to check your flight? Use Delta's Onboard Wi-Fi page and "Wi-Fi service by aircraft" to see what your tail typically supports before departure.

Delta Aircraft With Free Wi-Fi

Fast, Free Wi-Fi (aircraft with "*" means partial coverage):
A220-100 / A220-300 / A319 / A320 / A321ceo / A321neo / 737-800 / 737-900 / 757-200 / 757-300 / 767-300 / 767-300 / A330-200 / A330-300 / A330-900neo / A350-900* / CRJ-700* / CRJ-900*

Delta In-Flight Wi-Fi: What You Can Do Online

Delta markets streaming, browsing and messaging as supported use cases on equipped flights. The actual speed of the Wi-Fi depends on the aircraft itself; very heavy uploads or VPN tunnels may feel slower than at home.

Messaging, Calling, Streaming & VPNs:

• Messaging: iMessage, WhatsApp, Facebook Messenger work after connecting. On older "Wi-Fi Onboard" aircraft, messaging is free even when full Wi-Fi is paid. SMS works with Wi-Fi calling enabled, but MMS between iOS/Android has caveats (iOS 18 + RCS)
• Streaming: Yes on aircraft with Delta Sync Wi-Fi; performance still depends on network load.
• Voice/Video calls: Not permitted in flight.
• VPN: Supported, but log in or purchase first. Once you switch on VPN, you might lose access to the Delta Sync log-in page.

Delta In-Flight Wi-Fi: Slow or Not Connecting

• If the captive portal doesn't load, toggle Wi-Fi off/on, open a new browser tab, or temporarily disable your VPN.
• If the performance dropped, pause big app/OS updates and streaming to multiple devices.
• Power varies by aircraft, carry a small portable charger so your phone lasts the whole night.
  

How many devices can I use?

Delta explicitly says you can connect an unlimited number of devices to free Wi-Fi. If you buy a paid Flight Pass on a non-converted aircraft, that pass is not transferrable between devices.