Delta Flight DL429 Deals & Information (2025/2026)

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Delta Flight 429 Route Deals From $246

The cheapest prices found with in the last 7 days for return flights were $232 and $246 for one-way flights to John F. Kennedy Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Tue, Nov 11 - Wed, Nov 12
SEA
Seattle - Tacoma Intl.
JFK
John F. Kennedy Intl.
$232 Roundtrip, found 1 day ago
$232
Roundtrip
found 1 day ago
Select Delta flight, departing Tue, Nov 11 from Seattle - Tacoma Intl. to John F. Kennedy Intl., returning Wed, Nov 12, priced at $232 found 1 day ago
Tue, Sep 16 - Tue, Sep 23
SEA
Seattle - Tacoma Intl.
JFK
John F. Kennedy Intl.
$239 Roundtrip, found 6 hours ago
$239
Roundtrip
found 6 hours ago
Select Delta flight, departing Tue, Sep 16 from Seattle - Tacoma Intl. to John F. Kennedy Intl., returning Tue, Sep 23, priced at $239 found 6 hours ago
Tue, Nov 11 - Wed, Nov 12
SEA
Seattle - Tacoma Intl.
JFK
John F. Kennedy Intl.
$241 Roundtrip, found 1 day ago
$241
Roundtrip
found 1 day ago
Select Delta flight, departing Tue, Nov 11 from Seattle - Tacoma Intl. to John F. Kennedy Intl., returning Wed, Nov 12, priced at $241 found 1 day ago

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.