United Flight 3439 Deals & Information (2026/2027)

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

United Flight 3439 Route Deals From $104

The cheapest prices found with in the last 7 days for return flights were $212 and $104 for one-way flights to Newark Liberty Intl. Airport for the period specified. Prices and availability are subject to change. Additional terms apply.

Tue, Jul 7 - Wed, Jul 8
DTW
Detroit Metropolitan Wayne County
EWR
Newark Liberty Intl. Airport
$212 Roundtrip, found 4 days ago
$212
Roundtrip
found 4 days ago
Select United flight, departing Tue, Jul 7 from Detroit Metropolitan Wayne County to Newark Liberty Intl. Airport, returning Wed, Jul 8, priced at $212 found 4 days ago
Fri, Jul 24 - Mon, Jul 27
DTW
Detroit Metropolitan Wayne County
EWR
Newark Liberty Intl. Airport
$217 Roundtrip, just found
$217
Roundtrip
just found
Select United flight, departing Fri, Jul 24 from Detroit Metropolitan Wayne County to Newark Liberty Intl. Airport, returning Mon, Jul 27, priced at $217 just found
Fri, Jul 24 - Mon, Jul 27
DTW
Detroit Metropolitan Wayne County
EWR
Newark Liberty Intl. Airport
$227 Roundtrip, just found
$227
Roundtrip
just found
Select United flight, departing Fri, Jul 24 from Detroit Metropolitan Wayne County to Newark Liberty Intl. Airport, returning Mon, Jul 27, priced at $227 just found
Thu, Oct 1 - Wed, Oct 7
DTW
Detroit Metropolitan Wayne County
EWR
Newark Liberty Intl. Airport
$227 Roundtrip, found 5 days ago
$227
Roundtrip
found 5 days ago
Select United flight, departing Thu, Oct 1 from Detroit Metropolitan Wayne County to Newark Liberty Intl. Airport, returning Wed, Oct 7, priced at $227 found 5 days ago
Tue, Jul 7 - Wed, Jul 8
DTW
Detroit Metropolitan Wayne County
EWR
Newark Liberty Intl. Airport
$230 Roundtrip, found 4 days ago
$230
Roundtrip
found 4 days ago
Select United flight, departing Tue, Jul 7 from Detroit Metropolitan Wayne County to Newark Liberty Intl. Airport, returning Wed, Jul 8, priced at $230 found 4 days ago
Thu, Jul 2 - Mon, Jul 6
DTW
Detroit Metropolitan Wayne County
EWR
Newark Liberty Intl. Airport
$232 Roundtrip, found 1 day ago
$232
Roundtrip
found 1 day ago
Select United flight, departing Thu, Jul 2 from Detroit Metropolitan Wayne County to Newark Liberty Intl. Airport, returning Mon, Jul 6, priced at $232 found 1 day ago
Tue, Jul 21 - Wed, Jul 22
DTW
Detroit Metropolitan Wayne County
EWR
Newark Liberty Intl. Airport
$237 Roundtrip, found 4 days ago
$237
Roundtrip
found 4 days ago
Select United flight, departing Tue, Jul 21 from Detroit Metropolitan Wayne County to Newark Liberty Intl. Airport, returning Wed, Jul 22, priced at $237 found 4 days ago
Thu, Oct 1 - Sun, Oct 4
DTW
Detroit Metropolitan Wayne County
EWR
Newark Liberty Intl. Airport
$237 Roundtrip, found 19 hours ago
$237
Roundtrip
found 19 hours ago
Select United flight, departing Thu, Oct 1 from Detroit Metropolitan Wayne County to Newark Liberty Intl. Airport, returning Sun, Oct 4, priced at $237 found 19 hours ago
Thu, Sep 17 - Sun, Sep 20
DTW
Detroit Metropolitan Wayne County
EWR
Newark Liberty Intl. Airport
$239 Roundtrip, found 1 day ago
$239
Roundtrip
found 1 day ago
Select United flight, departing Thu, Sep 17 from Detroit Metropolitan Wayne County to Newark Liberty Intl. Airport, returning Sun, Sep 20, priced at $239 found 1 day ago
Thu, Jul 2 - Sat, Jul 4
DTW
Detroit Metropolitan Wayne County
EWR
Newark Liberty Intl. Airport
$242 Roundtrip, found 21 hours ago
$242
Roundtrip
found 21 hours ago
Select United flight, departing Thu, Jul 2 from Detroit Metropolitan Wayne County to Newark Liberty Intl. Airport, returning Sat, Jul 4, priced at $242 found 21 hours ago

Frequently asked questions

What route does flight number UA3439 take?
UA3439 takes several routes. The most popular is Newark Airport to EYW, which flies direct. This flight takes roughly 3 hours and 30 minutes. However, there may possibly be other flights with the same number that are multi-stop.
What terminal does UA3439 fly out of?
You'll likely take off from Terminal C if you're flying from Newark Airport. UA3439 serves several routes, but the direct flight between Newark Airport and Key West, FL Airport (EYW-Key West Intl.) is the most popular one.
What kind of plane is on flight number UA3439?
There's a good chance you'll be aboard an Embraer 170 if you've booked a seat from Liberty Intl. Airport (EWR) to Key West Intl. Airport, one of a few routes used for flight UA3439.
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 UA3439 flight with Travelocity, please visit our Customer Service Portal.