Delta Flight B6429 Deals & Information (2025/2026)

Wander Wisely with exceptional service, 24/7 supportOpens in a new window

Feel at ease with free flight cancellations within 24 hours of booking

Change your flight without a fee on select flights

Delta Flight 429 Route Deals From $153

The cheapest prices found with in the last 7 days for return flights were and $153 for one-way flights to John F. Kennedy Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Frequently asked questions

What route does flight number DL429 take?
Flight number DL429 operates straight from TUS to Sea-Tac Airport. During this trip, you’ll be in the air for around 3 hours and 23 minutes. It pays to book ahead to secure your preferred seat.
What kind of plane is on flight number DL429?
Prepare to cruise aboard an Airbus A220-100 if you’ve booked a seat on flight DL429. Nearly all services from Tucson Intl. Airport (TUS) to Sea-Tac Airport are operated using this kind of plane.
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 DL429 flight with Travelocity, please visit our Customer Service Portal.