Delta Flight 305 Deals & Information (2025/2026)

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Delta Flight 305 Route Deals From $109

The cheapest prices found with in the last 7 days for return flights were $168 and $109 for one-way flights to Fort Lauderdale - Hollywood Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Frequently asked questions

What route does flight number DL305 take?
DL305 takes roughly 6 hours and 15 minutes to fly non-stop from Logan Intl. Airport (BOS) to Sea-Tac Airport. We all know there's magic in the destination, but half the fun is in the journey!
How often is DL305 on time?
Delta flight number DL305 from Boston, MA Airport (BOS-Logan Intl.) to SEA operates as scheduled 96% of the time --- so you can rest easy knowing you'll touch down at your destination ASAP. If this flight happens to be delayed, you'll probably wait about 10 minutes. This route has a star rating of 4.55.
What terminal does DL305 fly out of?
Flights between Logan Intl. Airport and SEA are served by flight number DL305, and passengers booked on this flight usually leave from Terminal A.
What kind of plane is on flight number DL305?
Prepare to jump on board a Boeing 737-800 if you're traveling on flight DL305. Almost all services from Logan Intl. Airport (BOS) to Seattle, WA Airport (SEA-Seattle - Tacoma Intl.) operate using this aircraft model.
If I am not able to travel due to COVID-19, can I change my flight to a later date?
For more info about changing your DL305 flight with Travelocity, please visit our Customer Service Portal.