United Flight DL1423 Deals & Information (2025/2026)

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Frequently asked questions

What route does flight number UA1423 take?
You'll be touching down at Washington, DC Airport (IAD-Washington Dulles Intl.) from Princess Juliana Intl. Airport if you're traveling on flight number UA1423. You'll be in the air for 4 hours and 21 minutes during this trip. What's more, it conveniently operates non-stop.
What kind of plane is on flight number UA1423?
The route for flight number UA1423 is generally SXM to IAD, and the Boeing 737-700 is the type of aircraft you're likely to be traveling on.
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 UA1423 flight with Travelocity, please visit our Customer Service Portal.