United Flight 346 Deals & Information (2025/2026)

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United Flight 346 Route Deals From $268

The cheapest prices found with in the last 7 days for return flights were $509 and $268 for one-way flights to Princess Juliana Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Thu, Nov 20 - Thu, Nov 27
IAD
Washington Dulles Intl.
SXM
Princess Juliana Intl.
$509 Roundtrip, found 3 days ago
$509
Roundtrip
found 3 days ago
Select United flight, departing Thu, Nov 20 from Washington Dulles Intl. to Princess Juliana Intl., returning Thu, Nov 27, priced at $509 found 3 days ago
Thu, Jan 1 - Fri, Jan 9
IAD
Washington Dulles Intl.
SXM
Princess Juliana Intl.
$543 Roundtrip, found 3 days ago
$543
Roundtrip
found 3 days ago
Select United flight, departing Thu, Jan 1 from Washington Dulles Intl. to Princess Juliana Intl., returning Fri, Jan 9, priced at $543 found 3 days ago
Sat, Nov 29 - Sat, Dec 6
IAD
Washington Dulles Intl.
SXM
Princess Juliana Intl.
$583 Roundtrip, found 2 days ago
$583
Roundtrip
found 2 days ago
Select United flight, departing Sat, Nov 29 from Washington Dulles Intl. to Princess Juliana Intl., returning Sat, Dec 6, priced at $583 found 2 days ago

Frequently asked questions

What route does flight number UA346 take?
You'll be landing into Princess Juliana Intl. Airport from Washington, DC Airport (IAD-Washington Dulles Intl.) if you're traveling on flight number UA346. You'll be airborne for 4 hours and 8 minutes during this journey. It's also good to note that it conveniently travels direct.
How often is UA346 on time?
United Airlines flight number UA346 between Washington, DC Airport (IAD-Washington Dulles Intl.) and Princess Juliana Intl. Airport (SXM) takes off on schedule 100% of the time — so you can rest easy knowing you'll reach your destination ASAP. If the journey is late, you can expect to wait roughly 8 minutes. This route has a star rating of 3.9.
What kind of plane is on flight number UA346?
Prepare to board a Boeing 737-700 if you're taking off on flight UA346. Almost all flights from Washington, DC Airport (IAD-Washington Dulles Intl.) to Princess Juliana Intl. Airport (SXM) are operated using this type 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 UA346 flight with Travelocity, please visit our Customer Service Portal.