Delta Flight WN3994 Deals & Information (2024/2025)

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Delta Flight 3994 Route Deals From $109

The cheapest prices found with in the last 7 days for return flights were and $109 for one-way flights to Norman Y. Mineta San Jose Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Frequently asked questions

What route does flight number DL3994 take?
DL3994 jets from Tri-Cities Airport to Seattle - Tacoma Intl. Airport (SEA) and flies direct. This journey generally takes 1 hour and 6 minutes.
What kind of plane is on flight number DL3994?
Prepare to jump on board an Embraer 175 if you’ve reserved a seat on flight DL3994. Almost all services from Tri-Cities Airport (PSC) to SEA are operated 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 DL3994 flight with Travelocity, please visit our Customer Service Portal.